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• Linux termios VTIME not working?

  - by San Jacinto

  We've been bashing our heads off of this one all morning. We've got some serial lines setup between an embedded linux device and an Ubuntu box. Our reads are getting screwed up because our code usually returns two (sometimes more, sometimes exactly one) message reads instead of one message read per actual message sent. Here is the code that opens the serial port. InterCharTime is set to 4. void COMBaseClass::OpenPort() { cerr<< "openning port"<< port <<"\n"; struct termios newtio; this->fd = -1; int fdTemp; fdTemp = open( port, O_RDWR | O_NOCTTY); if (fdTemp < 0) { portOpen = 0; cerr<<"problem openning "<< port <<". Retrying"<<endl; usleep(1000000); return; } newtio.c_cflag = BaudRate | CS8 | CLOCAL | CREAD ;//| StopBits; newtio.c_iflag = IGNPAR; newtio.c_oflag = 0; /* set input mode (non-canonical, no echo,...) */ newtio.c_lflag = 0; newtio.c_cc[VTIME] = InterCharTime; /* inter-character timer in .1 secs */ newtio.c_cc[VMIN] = readBufferSize; /* blocking read until 1 char received */ tcflush(fdTemp, TCIFLUSH); tcsetattr(fdTemp,TCSANOW,&newtio); this->fd = fdTemp; portOpen = 1; } The other end is configured similarly for communication, and has one small section of particular iterest: while (1) { sprintf(out, "\r\nHello world %lu", ++ulCount); puts(out); WritePort((BYTE *)out, strlen(out)+1); sleep(2); } //while Now, when I run a read thread on the receiving machine, "hello world" is usually broken up over a couple messages. Here is some sample output: 1: Hello 2: world 1 3: Hello 4: world 2 5: Hello 6: world 3 where number followed by a colon is one message recieved. Can you see any error we are making? Thank you. Edit: For clarity, please view section 3.2 of this resource href="http://www.faqs.org/docs/Linux-HOWTO/Serial-Programming-HOWTO.html. To my understanding, with a VTIME of a couple seconds (meaning vtime is set anywhere between 10 and 50, trial-and-error), and a VMIN of 1, there should be no reason that the message is broken up over two separate messages.

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• Problem interfacing GSM USB modem to Java application

  - by varun

  I am working on an open-source application called FrontlineSMS which can be interfaced with GSM modems to send and receive SMS. The windows installer that is available through their website works fine. Since i wanted to modify it, I got the source code and built the jar and tried to launch it. When I plug in the GSM modem and launch the application, it sometimes detects the GSM device and i am even able to send and receive SMS. Or else 1.) I get the following error- Launching FrontlineSMS for Windows... Stable Library ========================================= Native lib Version = RXTX-2.1-7 Java lib Version = RXTX-2.1-7 Error 0x5 at /home/bob/foo/rxtx-devel/build/../src/termios.c(860): Access is de ied. Error 0x57 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2352): The parame er is incorrect. Error 0x57 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2352): The parame er is incorrect. Error 0x57 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2352): The parame er is incorrect. Error 0x57 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2352): The parame er is incorrect. Error 0x57 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2352): The parame er is incorrect. Error 0x57 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2352): The parame er is incorrect. Error 0x57 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2352): The parame er is incorrect. Error 0x57 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2352): The parame er is incorrect. Error 0x57 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2352): The parame er is incorrect. Error 0x57 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2352): The parame er is incorrect. Error 0x5 at /home/bob/foo/rxtx-devel/build/../src/termios.c(860): Access is de ied. Error 0x57 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2352): The parame er is incorrect. Error 0x57 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2352): The parame er is incorrect. Error 0x57 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2352): The parame er is incorrect. Error 0x57 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2352): The parame er is incorrect. Error 0x57 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2352): The parame er is incorrect. Error 0x57 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2352): The parame er is incorrect. Error 0x57 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2352): The parame er is incorrect. Error 0x1 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2497): Incorrect f nction. Error 0x1 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2497): Incorrect f nction. Error 0x1 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2497): Incorrect f nction. Error 0x1 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2497): Incorrect f nction. Error 0x1 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2497): Incorrect f nction. Error 0x1 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2497): Incorrect f nction. Error 0x1 at /home/bob/foo/rxtx-devel/build/../src/termios.c(2497): Incorrect f nction. 2.) OR the application sometimes crashes by creating a log file which contains: # # A fatal error has been detected by the Java Runtime Environment: # # EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x10009ccb, pid=4452, tid=3464 # # JRE version: 6.0_20-b02 # Java VM: Java HotSpot(TM) Client VM (16.3-b01 mixed mode, sharing windows-x86 ) # Problematic frame: # C [rxtxSerial.dll+0x9ccb] # # If you would like to submit a bug report, please visit: # http://java.sun.com/webapps/bugreport/crash.jsp # The crash happened outside the Java Virtual Machine in native code. # See problematic frame for where to report the bug. # --------------- T H R E A D --------------- Current thread (0x03433000): JavaThread "SmsModem :: COM18" daemon [_thread_in_native, id=3464, stack(0x070a0000,0x070f0000)] siginfo: ExceptionCode=0xc0000005, writing address 0x038cfa10 Registers: EAX=0x038cfa08, EBX=0x00000003, ECX=0x7c802413, EDX=0x00000001 ESP=0x070ef800, EBP=0x070ef9e8, ESI=0x3360b898, EDI=0x03433000 EIP=0x10009ccb, EFLAGS=0x00010202 Top of Stack: (sp=0x070ef800) 0x070ef800: 3360b8a0 6d9fbc40 6da2ed98 ffffffff 0x070ef810: 070ef848 6d8f0a2c 6d8f0340 070ef95c 0x070ef820: 070ef864 00000dfb 03433000 038cfa08 0x070ef830: 00000007 00000001 00000001 0000000a 0x070ef840: 03433bf4 fffffffe 070ef8f4 6d8f0b7a 0x070ef850: 070ef95c 03433bf8 6da6f210 6da6f538 0x070ef860: 070ef868 03433bf4 27f18708 27f18708 0x070ef870: 22eb9810 03433bc4 00000001 070ef898 Instructions: (pc=0x10009ccb) 0x10009cbb: 45 1c 7c 19 8b 85 44 fe ff ff 8b 95 4c fe ff ff 0x10009ccb: 89 50 08 8b 55 f4 89 d0 e9 f8 01 00 00 c7 85 50 Stack: [0x070a0000,0x070f0000], sp=0x070ef800, free space=13e070ef334k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) C [rxtxSerial.dll+0x9ccb] C [rxtxSerial.dll+0xa05e] j gnu.io.RXTXPort.readByte()I+0 j gnu.io.RXTXPort$SerialInputStream.read()I+61 j org.smslib.CSerialDriver.getResponse()Ljava/lang/String;+36 j net.frontlinesms.smsdevice.SmsModem._doDetection()Z+172 j net.frontlinesms.smsdevice.SmsModem.run()V+18 v ~StubRoutines::call_stub V [jvm.dll+0xf049c] V [jvm.dll+0x17fcf1] V [jvm.dll+0xf0667] V [jvm.dll+0xf06dd] V [jvm.dll+0x11a2a0] V [jvm.dll+0x1ddb14] V [jvm.dll+0x17f96c] C [msvcr71.dll+0x9565] C [kernel32.dll+0xb729] Java frames: (J=compiled Java code, j=interpreted, Vv=VM code) j gnu.io.RXTXPort.readByte()I+0 j gnu.io.RXTXPort$SerialInputStream.read()I+61 j org.smslib.CSerialDriver.getResponse()Ljava/lang/String;+36 j net.frontlinesms.smsdevice.SmsModem._doDetection()Z+172 j net.frontlinesms.smsdevice.SmsModem.run()V+18 v ~StubRoutines::call_stub --------------- P R O C E S S --------------- Java Threads: ( => current thread ) =>0x03433000 JavaThread "SmsModem :: COM18" daemon [_thread_in_native, id=3464, stack(0x070a0000,0x070f0000)] 0x0344b800 JavaThread "D3D Screen Updater" daemon [_thread_blocked, id=4404, stack(0x03dd0000,0x03e20000)] 0x002b7800 JavaThread "DestroyJavaVM" [_thread_blocked, id=3236, stack(0x008c0000,0x00910000)] 0x03f6f400 JavaThread "AWT-EventQueue-0" [_thread_blocked, id=1888, stack(0x038e0000,0x03930000)] 0x03ec2400 JavaThread "AWT-Shutdown" [_thread_blocked, id=4300, stack(0x03740000,0x03790000)] 0x032d8c00 JavaThread "EmailServerHandler" [_thread_blocked, id=5708, stack(0x03830000,0x03880000)] 0x032f7000 JavaThread "Incoming message processor" [_thread_blocked, id=4184, stack(0x03650000,0x036a0000)] 0x03004c00 JavaThread "AWT-Windows" daemon [_thread_in_native, id=4828, stack(0x035a0000,0x035f0000)] 0x0303f400 JavaThread "Java2D Disposer" daemon [_thread_blocked, id=3768, stack(0x03500000,0x03550000)] 0x02b1e800 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=4164, stack(0x02dd0000,0x02e20000)] 0x02b18c00 JavaThread "CompilerThread0" daemon [_thread_blocked, id=2936, stack(0x02d80000,0x02dd0000)] 0x02b17400 JavaThread "Attach Listener" daemon [_thread_blocked, id=5444, stack(0x02d30000,0x02d80000)] 0x02b15c00 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=4976, stack(0x02ce0000,0x02d30000)] 0x02b0d800 JavaThread "Finalizer" daemon [_thread_blocked, id=5876, stack(0x02c90000,0x02ce0000)] 0x02b0c400 JavaThread "Reference Handler" daemon [_thread_blocked, id=5984, stack(0x02c40000,0x02c90000)] Other Threads: 0x02b0ac00 VMThread [stack: 0x02bf0000,0x02c40000] [id=4508] 0x02b29800 WatcherThread [stack: 0x02e20000,0x02e70000] [id=6080] VM state:not at safepoint (normal execution) VM Mutex/Monitor currently owned by a thread: None Heap def new generation total 7808K, used 4003K [0x22990000, 0x23200000, 0x27ee0000) eden space 6976K, 45% used [0x22990000, 0x22ca8e90, 0x23060000) from space 832K, 100% used [0x23060000, 0x23130000, 0x23130000) to space 832K, 0% used [0x23130000, 0x23130000, 0x23200000) tenured generation total 17208K, used 15192K [0x27ee0000, 0x28fae000, 0x32990000) the space 17208K, 88% used [0x27ee0000, 0x28db6100, 0x28db6200, 0x28fae000) compacting perm gen total 13824K, used 13655K [0x32990000, 0x33710000, 0x36990000) the space 13824K, 98% used [0x32990000, 0x336e5f98, 0x336e6000, 0x33710000) ro space 10240K, 51% used [0x36990000, 0x36ebae00, 0x36ebae00, 0x37390000) rw space 12288K, 54% used [0x37390000, 0x37a272d8, 0x37a27400, 0x37f90000) Dynamic libraries: 0x00400000 - 0x00424000 C:\WINDOWS\system32\java.exe 0x7c900000 - 0x7c9b2000 C:\WINDOWS\system32\ntdll.dll 0x7c800000 - 0x7c8f6000 C:\WINDOWS\system32\kernel32.dll 0x77dd0000 - 0x77e6b000 C:\WINDOWS\system32\ADVAPI32.dll 0x77e70000 - 0x77f02000 C:\WINDOWS\system32\RPCRT4.dll 0x77fe0000 - 0x77ff1000 C:\WINDOWS\system32\Secur32.dll 0x7c340000 - 0x7c396000 C:\Program Files\Java\jre6\bin\msvcr71.dll 0x6d800000 - 0x6da97000 C:\Program Files\Java\jre6\bin\client\jvm.dll 0x7e410000 - 0x7e4a1000 C:\WINDOWS\system32\USER32.dll 0x77f10000 - 0x77f59000 C:\WINDOWS\system32\GDI32.dll 0x76b40000 - 0x76b6d000 C:\WINDOWS\system32\WINMM.dll 0x76390000 - 0x763ad000 C:\WINDOWS\system32\IMM32.DLL 0x6d7b0000 - 0x6d7bc000 C:\Program Files\Java\jre6\bin\verify.dll 0x6d330000 - 0x6d34f000 C:\Program Files\Java\jre6\bin\java.dll 0x6d290000 - 0x6d298000 C:\Program Files\Java\jre6\bin\hpi.dll 0x76bf0000 - 0x76bfb000 C:\WINDOWS\system32\PSAPI.DLL 0x6d7f0000 - 0x6d7ff000 C:\Program Files\Java\jre6\bin\zip.dll 0x6d000000 - 0x6d14a000 C:\Program Files\Java\jre6\bin\awt.dll 0x73000000 - 0x73026000 C:\WINDOWS\system32\WINSPOOL.DRV 0x77c10000 - 0x77c68000 C:\WINDOWS\system32\msvcrt.dll 0x774e0000 - 0x7761d000 C:\WINDOWS\system32\ole32.dll 0x773d0000 - 0x774d3000 C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.5512_x-ww_35d4ce83\COMCTL32.dll 0x77f60000 - 0x77fd6000 C:\WINDOWS\system32\SHLWAPI.dll 0x5ad70000 - 0x5ada8000 C:\WINDOWS\system32\uxtheme.dll 0x74720000 - 0x7476c000 C:\WINDOWS\system32\MSCTF.dll 0x755c0000 - 0x755ee000 C:\WINDOWS\system32\msctfime.ime 0x7c9c0000 - 0x7d1d7000 C:\WINDOWS\system32\shell32.dll 0x6d230000 - 0x6d284000 C:\Program Files\Java\jre6\bin\fontmanager.dll 0x68000000 - 0x68036000 C:\WINDOWS\system32\rsaenh.dll 0x769c0000 - 0x76a74000 C:\WINDOWS\system32\USERENV.dll 0x5b860000 - 0x5b8b5000 C:\WINDOWS\system32\netapi32.dll 0x6d610000 - 0x6d623000 C:\Program Files\Java\jre6\bin\net.dll 0x71ab0000 - 0x71ac7000 C:\WINDOWS\system32\WS2_32.dll 0x71aa0000 - 0x71aa8000 C:\WINDOWS\system32\WS2HELP.dll 0x71a50000 - 0x71a8f000 C:\WINDOWS\System32\mswsock.dll 0x76f20000 - 0x76f47000 C:\WINDOWS\system32\DNSAPI.dll 0x76fb0000 - 0x76fb8000 C:\WINDOWS\System32\winrnr.dll 0x76f60000 - 0x76f8c000 C:\WINDOWS\system32\WLDAP32.dll 0x16080000 - 0x160a5000 C:\Program Files\Bonjour\mdnsNSP.dll 0x76d60000 - 0x76d79000 C:\WINDOWS\system32\Iphlpapi.dll 0x63560000 - 0x63568000 C:\Program Files\National Instruments\Shared\mDNS Responder\nimdnsNSP.dll 0x63550000 - 0x63559000 C:\WINDOWS\system32\nimdnsResponder.dll 0x78130000 - 0x781cb000 C:\WINDOWS\WinSxS\x86_Microsoft.VC80.CRT_1fc8b3b9a1e18e3b_8.0.50727.4053_x-ww_e6967989\MSVCR80.dll 0x76fc0000 - 0x76fc6000 C:\WINDOWS\system32\rasadhlp.dll 0x10000000 - 0x10012000 C:\Documents and Settings\bjz677\Desktop\client run\rxtxSerial.dll 0x73d90000 - 0x73db7000 C:\WINDOWS\system32\crtdll.dll 0x4fdd0000 - 0x4ff76000 C:\WINDOWS\system32\d3d9.dll 0x038d0000 - 0x038d6000 C:\WINDOWS\system32\d3d8thk.dll 0x77c00000 - 0x77c08000 C:\WINDOWS\system32\VERSION.dll 0x6d630000 - 0x6d639000 C:\Program Files\Java\jre6\bin\nio.dll 0x03930000 - 0x03977000 C:\Program Files\Iomega\DriveIcons\IMGHOOK.DLL 0x605d0000 - 0x605d9000 C:\WINDOWS\system32\mslbui.dll 0x77120000 - 0x771ab000 C:\WINDOWS\system32\OLEAUT32.DLL VM Arguments: java_command: net.frontlinesms.DesktopLauncher Launcher Type: SUN_STANDARD Environment Variables: JAVA_HOME=C:\Program Files\Java\jdk1.6.0_20\bin CLASSPATH=.;C:\Program Files\Java\jre6\lib\ext\QTJava.zip; PATH=C:\Program Files\Intel\MKL\10.0.2.019\ia32\bin;C:\Program Files\Intel\VTune\CGGlbCache;C:\Program Files\Intel\VTune\Analyzer\Bin;C:\Program Files\Intel\VTune\Shared\Bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;s:\datamart\bin;C:\Program Files\ATI Technologies\ATI.ACE\;C:\Program Files\IVI\bin;c:\Program Files\Microsoft SQL Server\90\Tools\binn\;C:\Program Files\MATLAB\R2007b\bin;C:\Program Files\MATLAB\R2007b\bin\win32;C:\VXIPNP\WinNT\Bin;C:\Program Files\Intel\Compiler\Fortran\10.1.021\\IA32\Lib;C:\Program Files\Intel\Compiler\Fortran\10.1.021\\EM64T\Lib;C:\VXIPNP\WinNT\Bin\;C:\WINDOWS\system32\WindowsPowerShell\v1.0;C:\WINDOWS\system32\WindowsPowerShell\v1.0;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\Java\jdk1.6.0_20\bin USERNAME=xxx OS=Windows_NT PROCESSOR_IDENTIFIER=x86 Family 6 Model 15 Stepping 2, GenuineIntel --------------- S Y S T E M --------------- OS: Windows XP Build 2600 Service Pack 3 CPU:total 2 (2 cores per cpu, 1 threads per core) family 6 model 15 stepping 2, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3 Memory: 4k page, physical 2094960k(1063364k free), swap 4032536k(3038408k free) vm_info: Java HotSpot(TM) Client VM (16.3-b01) for windows-x86 JRE (1.6.0_20-b02), built on Apr 12 2010 13:52:23 by "java_re" with MS VC++ 7.1 (VS2003) time: Wed Jun 16 11:53:40 2010 elapsed time: 45 seconds Anyone knows what caused this? Please answer keeping in mind I am new to Java. Thanks, Varun

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• How to disable ^C from being echoed on Linux on Ctrl-C

  - by pts

  When I press Ctrl-C in any pseudoterminal (xterm, gnome-terminal, rxvt, text console and SSH) in Karmic Koala, the string ^C gets echoed to the terminal in Ubuntu Karmic Koala. This hasn't happened in Ubuntu Jaunty Jackalope. I'd like to get rid of the extra ^C. Example: $ cat foo foo ^C $ _ I got the above by typing C, A, T, Enter, F, O, O, Enter, Ctrl-C. I want to get rid of the ^C, and get this for the same keypresses: $ cat foo foo $ _ I tried setting stty -echoctl, which created a single-character HT (or a box with Unicode 0003 in it) instead of the ^C. I want to see absolutely nothing when I press Ctrl-C. I'm using Linux linux 2.6.31-20-generic-pae #57-Ubuntu SMP Mon Feb 8 10:23:59 UTC 2010 i686 GNU/Linux

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• Glibc importance of error ...

  - by Oz123

  Hi Everyone, I am following LFS 6.7, and I reached the point where I compile glibc-2.12.1 . I mounted the LFS partition with the atime option: here is a confirm on that I think: /dev/sdb1 on /mnt /lfs type ext4 (rw) I get the following errors on making the test, and I have no clue if I should try to resolve them, or just ignore them and go on ... rpc/types.h sunrpc/rpc/svc_auth.h sunrpc/rpcsvc/bootparam.h sysvipc/sys/ipc.h \ sysvipc/sys/msg.h sysvipc/sys/sem.h sysvipc/sys/shm.h termios/termios.h \ termios/sys/termios.h termios/sys/ttychars.h time/time.h time/sys/time.h \ time/sys/timeb.h wcsmbs/wchar.h wctype/wctype.h > \ /sources/glibc-build/begin-end-check.out make[1]: Target `check' not remade because of errors. make[1]: Leaving directory `/sources/glibc-2.12.1' make: *** [check] Error 2 root:/sources/glibc-build# grep Error glibc-check-log make[2]: *** [/sources/glibc-build/math/test-float.out] Error 1 make[2]: *** [/sources/glibc-build/math/test-ifloat.out] Error 1 make[1]: *** [math/tests] Error 2 make[2]: [/sources/glibc-build/posix/annexc.out] Error 1 (ignored) make: *** [check] Error 2 thanks in advance, Oz

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• terminal: where am I?

  - by sid_com

  Is there a variable or a function, which can tell me the actual position of the cursor? #!/usr/bin/env perl use warnings; use 5.012; use Term::ReadKey; use Term::Cap; use POSIX; my( $col, $row ) = GetTerminalSize(); my $termios = new POSIX::Termios; $termios->getattr; my $ospeed = $termios->getospeed; my $terminal = Tgetent Term::Cap { TERM => undef, OSPEED => $ospeed }; # some movement ... # at which position (x/y) is the cursor now?

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• Issues writing to serial port on MAC OSX using unistd.h in c

  - by Schuyler

  I am trying to write to a bluetooth device on MAC OSX using the unistd.h Linux functions in c. I am connecting fine and writing the first few bytes with success. When I try to write other commands to it (there are bytes added to the write buffer every 15ms), I don't see any results even though the write() function returns 1 (write success). If you start a write and it doesn't finish by the time you try to start another write (since it is non-blocking), could that possibly screw up the initial write? (If so, is there any way to check if a write has completed?) That is the only thing I can think of since the writes are occurring fairly frequently and the first two are successfully sent. qwbyte() simply adds a byte to the output array and increments its length The open port function: BAMid = -1; struct termios options; struct termios originalTTYAttrs; // Open the serial port read/write, nonblocking, with no controlling terminal, and don't wait for a connection. BAMid = open(strPath, O_RDWR | O_NOCTTY | O_NONBLOCK); if (BAMid == -1) { printf("Error opening serial port %s - %s(%d).\n", strPath, strerror(errno), errno); goto error; } // Issue TIOCEXCL ioctl to prevent additional opens except by root-owned processes. if (ioctl(BAMid, TIOCEXCL) == -1) { printf("Error setting TIOCEXCL on %s - %s(%d).\n", strPath, strerror(errno), errno); goto error; } // Get the current options and save them so we can restore the default settings later. if (tcgetattr(BAMid, &originalTTYAttrs) == -1) { printf("Error getting tty attributes %s - %s(%d).\n", strPath, strerror(errno), errno); goto error; } // The serial port attributes such as timeouts and baud rate are set by modifying the termios // structure and then calling tcsetattr() to cause the changes to take effect. Note that the // changes will not become effective without the tcsetattr() call. options = originalTTYAttrs; // Set raw input (non-canonical) mode, with reads blocking until either a single character // has been received or a one second timeout expires. [should be moot since we are leaving it as nonblocking] cfmakeraw(&options); options.c_cc[VMIN] = 1; options.c_cc[VTIME] = 10; cfsetspeed(&options, B57600); // Set 57600 baud options.c_cflag |= CS8; // Use 8 bit words // Cause the new options to take effect immediately. if (tcsetattr(BAMid, TCSANOW, &options) == -1) { printf("Error setting tty attributes %s - %s(%d).\n", strPath, strerror(errno), errno); goto error; } //flush old transmissions if (tcflush(BAMid,TCIOFLUSH) == -1) { printf("Error flushing BAM serial port - %s(%d).\n", strerror(errno), errno); } oBufLength = 0; // Ask it to start if (! qwbyte(CmdStart) ) { goto error; } if (! qwbyte(CmdFull) ) { goto error; } //this transmit works txbytes(); printf("success opening port!"); return -1; // Failure path error: if (BAMid != -1) { close(BAMid); } printf("returning an error--%d",errno); return errno; } The write function (txbytes): int i, bufSize, numBytes; if(oBufLength != 0) { //if the output array isn't empty //duplicating the output array and its size so it can //be overwritten while this write is occuring printf("about to transmit: "); for(i = 0; i < oBufLength; i++) { printf(" %u",oBuf[i]); tempBuf[i] = oBuf[i]; } printf("\n"); bufSize = oBufLength; oBufLength = 0; numBytes = write(BAMid, &tempBuf, bufSize); printf("bytes written = %d\n",numBytes); if (numBytes == -1) { printf("Error writing to port - %s(%d).\n", strerror(errno), errno); } return (numBytes 0); } else { return 0; }

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• Keyboard input: how to separate keycodes received from user

  - by Iulian Serbanoiu

  Hello, I am writing an application involving user input from the keyboard. For doing it I use this way of reading the input: #include <stdio.h> #include <termios.h> #include <unistd.h> int mygetch( ) { struct termios oldt, newt; int ch; tcgetattr( STDIN_FILENO, &oldt ); newt = oldt; newt.c_lflag &= ~( ICANON | ECHO ); tcsetattr( STDIN_FILENO, TCSANOW, &newt ); ch = getchar(); tcsetattr( STDIN_FILENO, TCSANOW, &oldt ); return ch; } int main(void) { int c; do{ c = mygetch(); printf("%d\n",c); }while(c!='q'); return 0; } Everyting works fine for letters digits,tabs but when hiting DEL, LEFT, CTRL+LEFT, F8 (and others) I receive not one but 3,4,5 or even 6 characters. The question is: Is is possible to make a separation of these characters (to actually know that I only hit one key or key combination). What I would like is to have a function to return a single integer value for any type of input (letter, digit, F1-F12, DEl, PGUP, PGDOWN, CTRL+A, CTRL+ALT+A, ALT+LEFT, etc). Is this possible? I'm interested in an idea to to this, the language doesn't matter much, though I'd prefer perl or c. Thanks, Iulian

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• Correct initialization sequence for Linux serial port

  - by whitequark

  I wrote an application that must use serial ports on Linux, especially ttyUSB ones. Reading and writing operations are performed with standard select()/read() loop and write(), and there is probably nothing wrong in them, but initialization code (or absence of some part of it) damages something in the tty subsystem. Here it is: vuxboot(string filename, unsigned baud = B115200) : _debug(false) { _fd = open(filename.c_str(), O_RDWR | O_NOCTTY); if(!_fd) throw new io_error("cannot open port"); // Serial initialization was written with FTDI USB-to-serial converters // in mind. Anyway, who wants to use non-8n1 protocol? tcgetattr(_fd, &_termios); termios tio = {0}; tio.c_iflag = IGNPAR; tio.c_oflag = 0; tio.c_cflag = baud | CLOCAL | CREAD | CS8; tio.c_lflag = 0; tcflush(_fd, TCIFLUSH); tcsetattr(_fd, TCSANOW, &tio); } Another tcsetattr(_fd, TCSANOW, &_termios) sits in the destructor, but it is irrelevant. With or without this termios initialization, strange things happen in system after the application exits. Sometimes plain cat (or hd) exits immediately printing nothing or same stuff each time, sometimes it is waiting and not displaying any of the data that is surely sent onto the port; and close() (read() too, but not every time) emits a strange WARNING to dmesg referring to usb-serial.c. I checked the hardware and firmware tens of times (even on different machines) and I am sure it is working as intended; moreover, I stripped the firmware to just print same message over and over. How can I use serial port without destroying anything? Thanks.

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• C++ Serial Port Only Responding Once Using Write()

  - by Pfeffer

  All the code below works. My device responds, C,7 is a reset. When I run this the second time it doesn't respond. If I manually turn my device off and on, then run this script again it works. But not if I press the button to run the script the second time. RS232: 57600,8,N,1 Any ideas?? Is there any more information needed to solve this? *Also when I get this working I'm going to have to use the read() function to get the devices responses. Does anyone know the correct format I need to use, based on the below code? Sorry I'm new to C++...I'm more of a PHP guy. *I also don't know if 1024 is right, but it seems to work so eh... Thanks so much! #include <termios.h> int fd; struct termios options; fd=open("/dev/tty.KeySerial1", O_RDWR | O_NOCTTY | O_NDELAY); fcntl(fd, F_SETFL, 0); tcgetattr(fd,&options); options.c_ispeed=57600; options.c_ospeed=57600; options.c_cflag |= (CLOCAL | CREAD); options.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG); options.c_cflag &= ~CSTOPB; options.c_lflag &= ~ECHO; options.c_oflag &= ~ECHO; options.c_oflag &= ~OPOST; options.c_cflag |= CS8; options.c_cflag |= CRTSCTS; options.c_cc[VMIN] = 0; options.c_cc[VTIME] =10; tcflush(fd, TCIFLUSH); tcsetattr(fd,TCSANOW,&options); write(fd, "C,7\r\n", 1024); close(fd);

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• Installing vim7.2 on Solaris Sparc 10 as non-root

  - by Tobbe

  I'm trying to install vim to $HOME/bin by compiling the sources. ./configure --prefix=$home/bin seems to work, but when running make I get: > make Starting make in the src directory. If there are problems, cd to the src directory and run make there cd src && make first gcc -c -I. -Iproto -DHAVE_CONFIG_H -DFEAT_GUI_GTK -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/pango-1.0 -I/usr/openwin/include -I/usr/sfw/include -I/usr/sfw/include/freetype2 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -g -O2 -I/usr/openwin/include -o objects/buffer.o buffer.c In file included from buffer.c:28: vim.h:41: error: syntax error before ':' token In file included from os_unix.h:29, from vim.h:245, from buffer.c:28: /usr/include/sys/stat.h:251: error: syntax error before "blksize_t" /usr/include/sys/stat.h:255: error: syntax error before '}' token /usr/include/sys/stat.h:309: error: syntax error before "blksize_t" /usr/include/sys/stat.h:310: error: conflicting types for 'st_blocks' /usr/include/sys/stat.h:252: error: previous declaration of 'st_blocks' was here /usr/include/sys/stat.h:313: error: syntax error before '}' token In file included from /opt/local/bin/../lib/gcc/sparc-sun-solaris2.6/3.4.6/include/sys/signal.h:132, from /usr/include/signal.h:26, from os_unix.h:163, from vim.h:245, from buffer.c:28: /usr/include/sys/siginfo.h:259: error: syntax error before "ctid_t" /usr/include/sys/siginfo.h:292: error: syntax error before '}' token /usr/include/sys/siginfo.h:294: error: syntax error before '}' token /usr/include/sys/siginfo.h:390: error: syntax error before "ctid_t" /usr/include/sys/siginfo.h:398: error: conflicting types for '__fault' /usr/include/sys/siginfo.h:267: error: previous declaration of '__fault' was here /usr/include/sys/siginfo.h:404: error: conflicting types for '__file' /usr/include/sys/siginfo.h:273: error: previous declaration of '__file' was here /usr/include/sys/siginfo.h:420: error: conflicting types for '__prof' /usr/include/sys/siginfo.h:287: error: previous declaration of '__prof' was here /usr/include/sys/siginfo.h:424: error: conflicting types for '__rctl' /usr/include/sys/siginfo.h:291: error: previous declaration of '__rctl' was here /usr/include/sys/siginfo.h:426: error: syntax error before '}' token /usr/include/sys/siginfo.h:428: error: syntax error before '}' token /usr/include/sys/siginfo.h:432: error: syntax error before "k_siginfo_t" /usr/include/sys/siginfo.h:437: error: syntax error before '}' token In file included from /usr/include/signal.h:26, from os_unix.h:163, from vim.h:245, from buffer.c:28: /opt/local/bin/../lib/gcc/sparc-sun-solaris2.6/3.4.6/include/sys/signal.h:173: error: syntax error before "siginfo_t" In file included from os_unix.h:163, from vim.h:245, from buffer.c:28: /usr/include/signal.h:111: error: syntax error before "siginfo_t" /usr/include/signal.h:113: error: syntax error before "siginfo_t" buffer.c: In function `buflist_new': buffer.c:1502: error: storage size of 'st' isn't known buffer.c: In function `buflist_findname': buffer.c:1989: error: storage size of 'st' isn't known buffer.c: In function `setfname': buffer.c:2578: error: storage size of 'st' isn't known buffer.c: In function `otherfile_buf': buffer.c:2836: error: storage size of 'st' isn't known buffer.c: In function `buf_setino': buffer.c:2874: error: storage size of 'st' isn't known buffer.c: In function `buf_same_ino': buffer.c:2894: error: dereferencing pointer to incomplete type buffer.c:2895: error: dereferencing pointer to incomplete type *** Error code 1 make: Fatal error: Command failed for target `objects/buffer.o' Current working directory /home/xluntor/vim72/src *** Error code 1 make: Fatal error: Command failed for target `first' How do I fix the make errors? Or is there another way to install vim as non-root? Thanks in advance EDIT: I took a look at the google groups link Sarah posted. The "Compiling Vim" page linked from there was for Linux, so the commands doesn't even work on Solars. But it did hint at logging the output of ./configure to a file, so I did that. Here it is: ./configure output removed. New version further down. Does anyone spot anything critical missing? EDIT 2: So I downloaded the vim package from sunfreeware. I couldn't just install it, since I don't have root privileges, but I was able to extract the package file. This was the file structure in it: `-- SMCvim `-- reloc |-- bin |-- doc | `-- vim `-- share |-- man | `-- man1 `-- vim `-- vim72 |-- autoload | `-- xml |-- colors |-- compiler |-- doc |-- ftplugin |-- indent |-- keymap |-- lang |-- macros | |-- hanoi | |-- life | |-- maze | `-- urm |-- plugin |-- print |-- spell |-- syntax |-- tools `-- tutor I moved the three files (vim, vimtutor, xdd) in SMCvim/reloc/bin to $HOME/bin, so now I can finally run $HOME/bin/vim! But where do I put the "share" directory and its content? EDIT 3: It might also be worth noting that there already exists an install of vim on the system, but it is broken. When I try to run it I get: ld.so.1: vim: fatal: libgtk-1.2.so.0: open failed: No such file or directory "which vim" outputs /opt/local/bin/vim EDIT 4: Trying to compile this on Solaris 10. uname -a SunOS ws005-22 5.10 Generic_141414-10 sun4u sparc SUNW,SPARC-Enterprise New ./configure output: ./configure --prefix=$home/bin ac_cv_sizeof_int=8 --enable-rubyinterp configure: loading cache auto/config.cache checking whether make sets $(MAKE)... yes checking for gcc... gcc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... unsupported checking how to run the C preprocessor... gcc -E checking for grep that handles long lines and -e... /usr/sfw/bin/ggrep checking for egrep... /usr/sfw/bin/ggrep -E checking for library containing strerror... none required checking for gawk... gawk checking for strip... strip checking for ANSI C header files... yes checking for sys/wait.h that is POSIX.1 compatible... no configure: checking for buggy tools... checking for BeOS... no checking for QNX... no checking for Darwin (Mac OS X)... no checking --with-local-dir argument... Defaulting to /usr/local checking --with-vim-name argument... Defaulting to vim checking --with-ex-name argument... Defaulting to ex checking --with-view-name argument... Defaulting to view checking --with-global-runtime argument... no checking --with-modified-by argument... no checking if character set is EBCDIC... no checking --disable-selinux argument... no checking for is_selinux_enabled in -lselinux... no checking --with-features argument... Defaulting to normal checking --with-compiledby argument... no checking --disable-xsmp argument... no checking --disable-xsmp-interact argument... no checking --enable-mzschemeinterp argument... no checking --enable-perlinterp argument... no checking --enable-pythoninterp argument... no checking --enable-tclinterp argument... no checking --enable-rubyinterp argument... yes checking for ruby... /opt/sfw/bin/ruby checking Ruby version... OK checking Ruby header files... /opt/sfw/lib/ruby/1.6/sparc-solaris2.10 checking --enable-cscope argument... no checking --enable-workshop argument... no checking --disable-netbeans argument... no checking for socket in -lsocket... yes checking for gethostbyname in -lnsl... yes checking whether compiling netbeans integration is possible... no checking --enable-sniff argument... no checking --enable-multibyte argument... no checking --enable-hangulinput argument... no checking --enable-xim argument... defaulting to auto checking --enable-fontset argument... no checking for xmkmf... /usr/openwin/bin/xmkmf checking for X... libraries /usr/openwin/lib, headers /usr/openwin/include checking whether -R must be followed by a space... no checking for gethostbyname... yes checking for connect... yes checking for remove... yes checking for shmat... yes checking for IceConnectionNumber in -lICE... yes checking if X11 header files can be found... yes checking for _XdmcpAuthDoIt in -lXdmcp... no checking for IceOpenConnection in -lICE... yes checking for XpmCreatePixmapFromData in -lXpm... yes checking if X11 header files implicitly declare return values... no checking --enable-gui argument... yes/auto - automatic GUI support checking whether or not to look for GTK... yes checking whether or not to look for GTK+ 2... yes checking whether or not to look for GNOME... no checking whether or not to look for Motif... yes checking whether or not to look for Athena... yes checking whether or not to look for neXtaw... yes checking whether or not to look for Carbon... yes checking --with-gtk-prefix argument... no checking --with-gtk-exec-prefix argument... no checking --disable-gtktest argument... gtk test enabled checking for gtk-config... /opt/local/bin/gtk-config checking for pkg-config... /usr/bin/pkg-config checking for GTK - version = 2.2.0... yes; found version 2.4.9 checking X11/SM/SMlib.h usability... yes checking X11/SM/SMlib.h presence... yes checking for X11/SM/SMlib.h... yes checking X11/xpm.h usability... yes checking X11/xpm.h presence... yes checking for X11/xpm.h... yes checking X11/Sunkeysym.h usability... yes checking X11/Sunkeysym.h presence... yes checking for X11/Sunkeysym.h... yes checking for XIMText in X11/Xlib.h... yes X GUI selected; xim has been enabled checking whether toupper is broken... no checking whether __DATE__ and __TIME__ work... yes checking elf.h usability... yes checking elf.h presence... yes checking for elf.h... yes checking for main in -lelf... yes checking for dirent.h that defines DIR... yes checking for library containing opendir... none required checking for sys/wait.h that defines union wait... no checking stdarg.h usability... yes checking stdarg.h presence... yes checking for stdarg.h... yes checking stdlib.h usability... yes checking stdlib.h presence... yes checking for stdlib.h... yes checking string.h usability... yes checking string.h presence... yes checking for string.h... yes checking sys/select.h usability... yes checking sys/select.h presence... yes checking for sys/select.h... yes checking sys/utsname.h usability... yes checking sys/utsname.h presence... yes checking for sys/utsname.h... yes checking termcap.h usability... yes checking termcap.h presence... yes checking for termcap.h... yes checking fcntl.h usability... yes checking fcntl.h presence... yes checking for fcntl.h... yes checking sgtty.h usability... yes checking sgtty.h presence... yes checking for sgtty.h... yes checking sys/ioctl.h usability... yes checking sys/ioctl.h presence... yes checking for sys/ioctl.h... yes checking sys/time.h usability... yes checking sys/time.h presence... yes checking for sys/time.h... yes checking sys/types.h usability... yes checking sys/types.h presence... yes checking for sys/types.h... yes checking termio.h usability... yes checking termio.h presence... yes checking for termio.h... yes checking iconv.h usability... yes checking iconv.h presence... yes checking for iconv.h... yes checking langinfo.h usability... yes checking langinfo.h presence... yes checking for langinfo.h... yes checking math.h usability... yes checking math.h presence... yes checking for math.h... yes checking unistd.h usability... yes checking unistd.h presence... yes checking for unistd.h... yes checking stropts.h usability... no checking stropts.h presence... yes configure: WARNING: stropts.h: present but cannot be compiled configure: WARNING: stropts.h: check for missing prerequisite headers? configure: WARNING: stropts.h: see the Autoconf documentation configure: WARNING: stropts.h: section "Present But Cannot Be Compiled" configure: WARNING: stropts.h: proceeding with the preprocessor's result configure: WARNING: stropts.h: in the future, the compiler will take precedence checking for stropts.h... yes checking errno.h usability... yes checking errno.h presence... yes checking for errno.h... yes checking sys/resource.h usability... yes checking sys/resource.h presence... yes checking for sys/resource.h... yes checking sys/systeminfo.h usability... yes checking sys/systeminfo.h presence... yes checking for sys/systeminfo.h... yes checking locale.h usability... yes checking locale.h presence... yes checking for locale.h... yes checking sys/stream.h usability... no checking sys/stream.h presence... yes configure: WARNING: sys/stream.h: present but cannot be compiled configure: WARNING: sys/stream.h: check for missing prerequisite headers? configure: WARNING: sys/stream.h: see the Autoconf documentation configure: WARNING: sys/stream.h: section "Present But Cannot Be Compiled" configure: WARNING: sys/stream.h: proceeding with the preprocessor's result configure: WARNING: sys/stream.h: in the future, the compiler will take precedence checking for sys/stream.h... yes checking termios.h usability... yes checking termios.h presence... yes checking for termios.h... yes checking libc.h usability... no checking libc.h presence... no checking for libc.h... no checking sys/statfs.h usability... yes checking sys/statfs.h presence... yes checking for sys/statfs.h... yes checking poll.h usability... yes checking poll.h presence... yes checking for poll.h... yes checking sys/poll.h usability... yes checking sys/poll.h presence... yes checking for sys/poll.h... yes checking pwd.h usability... yes checking pwd.h presence... yes checking for pwd.h... yes checking utime.h usability... yes checking utime.h presence... yes checking for utime.h... yes checking sys/param.h usability... yes checking sys/param.h presence... yes checking for sys/param.h... yes checking libintl.h usability... yes checking libintl.h presence... yes checking for libintl.h... yes checking libgen.h usability... yes checking libgen.h presence... yes checking for libgen.h... yes checking util/debug.h usability... no checking util/debug.h presence... no checking for util/debug.h... no checking util/msg18n.h usability... no checking util/msg18n.h presence... no checking for util/msg18n.h... no checking frame.h usability... no checking frame.h presence... no checking for frame.h... no checking sys/acl.h usability... yes checking sys/acl.h presence... yes checking for sys/acl.h... yes checking sys/access.h usability... no checking sys/access.h presence... no checking for sys/access.h... no checking sys/sysctl.h usability... no checking sys/sysctl.h presence... no checking for sys/sysctl.h... no checking sys/sysinfo.h usability... yes checking sys/sysinfo.h presence... yes checking for sys/sysinfo.h... yes checking wchar.h usability... yes checking wchar.h presence... yes checking for wchar.h... yes checking wctype.h usability... yes checking wctype.h presence... yes checking for wctype.h... yes checking for sys/ptem.h... no checking for pthread_np.h... no checking strings.h usability... yes checking strings.h presence... yes checking for strings.h... yes checking if strings.h can be included after string.h... yes checking whether gcc needs -traditional... no checking for an ANSI C-conforming const... yes checking for mode_t... yes checking for off_t... yes checking for pid_t... yes checking for size_t... yes checking for uid_t in sys/types.h... yes checking whether time.h and sys/time.h may both be included... yes checking for ino_t... yes checking for dev_t... yes checking for rlim_t... yes checking for stack_t... yes checking whether stack_t has an ss_base field... no checking --with-tlib argument... empty: automatic terminal library selection checking for tgetent in -lncurses... yes checking whether we talk terminfo... yes checking what tgetent() returns for an unknown terminal... zero checking whether termcap.h contains ospeed... yes checking whether termcap.h contains UP, BC and PC... yes checking whether tputs() uses outfuntype... no checking whether sys/select.h and sys/time.h may both be included... yes checking for /dev/ptc... no checking for SVR4 ptys... yes checking for ptyranges... don't know checking default tty permissions/group... can't determine - assume ptys are world accessable world checking return type of signal handlers... void checking for struct sigcontext... no checking getcwd implementation is broken... no checking for bcmp... yes checking for fchdir... yes checking for fchown... yes checking for fseeko... yes checking for fsync... yes checking for ftello... yes checking for getcwd... yes checking for getpseudotty... no checking for getpwnam... yes checking for getpwuid... yes checking for getrlimit... yes checking for gettimeofday... yes checking for getwd... yes checking for lstat... yes checking for memcmp... yes checking for memset... yes checking for nanosleep... no checking for opendir... yes checking for putenv... yes checking for qsort... yes checking for readlink... yes checking for select... yes checking for setenv... yes checking for setpgid... yes checking for setsid... yes checking for sigaltstack... yes checking for sigstack... yes checking for sigset... yes checking for sigsetjmp... yes checking for sigaction... yes checking for sigvec... no checking for strcasecmp... yes checking for strerror... yes checking for strftime... yes checking for stricmp... no checking for strncasecmp... yes checking for strnicmp... no checking for strpbrk... yes checking for strtol... yes checking for tgetent... yes checking for towlower... yes checking for towupper... yes checking for iswupper... yes checking for usleep... yes checking for utime... yes checking for utimes... yes checking for st_blksize... no checking whether stat() ignores a trailing slash... no checking for iconv_open()... yes; with -liconv checking for nl_langinfo(CODESET)... yes checking for strtod in -lm... yes checking for strtod() and other floating point functions... yes checking --disable-acl argument... no checking for acl_get_file in -lposix1e... no checking for acl_get_file in -lacl... no checking for POSIX ACL support... no checking for Solaris ACL support... yes checking for AIX ACL support... no checking --disable-gpm argument... no checking for gpm... no checking --disable-sysmouse argument... no checking for sysmouse... no checking for rename... yes checking for sysctl... not usable checking for sysinfo... not usable checking for sysinfo.mem_unit... no checking for sysconf... yes checking size of int... (cached) 8 checking whether memmove handles overlaps... yes checking for _xpg4_setrunelocale in -lxpg4... no checking how to create tags... ctags -t checking how to run man with a section nr... man -s checking --disable-nls argument... no checking for msgfmt... msgfmt checking for NLS... no "po/Makefile" - disabled checking dlfcn.h usability... yes checking dlfcn.h presence... yes checking for dlfcn.h... yes checking for dlopen()... yes checking for dlsym()... yes checking setjmp.h usability... yes checking setjmp.h presence... yes checking for setjmp.h... yes checking for GCC 3 or later... yes configure: updating cache auto/config.cache configure: creating auto/config.status config.status: creating auto/config.mk config.status: creating auto/config.h Make: make Starting make in the src directory. If there are problems, cd to the src directory and run make there cd src && make first mkdir objects CC="gcc -Iproto -DHAVE_CONFIG_H -DFEAT_GUI_GTK -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/pango-1.0 -I/usr/openwin/include -I/usr/sfw/include -I/usr/sfw/include/freetype2 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/openwin/include -I/opt/sfw/lib/ruby/1.6/sparc-solaris2.10 " srcdir=. sh ./osdef.sh gcc -c -I. -Iproto -DHAVE_CONFIG_H -DFEAT_GUI_GTK -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/pango-1.0 -I/usr/openwin/include -I/usr/sfw/include -I/usr/sfw/include/freetype2 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -g -O2 -I/usr/openwin/include -I/opt/sfw/lib/ruby/1.6/sparc-solaris2.10 -o objects/buffer.o buffer.c In file included from os_unix.h:29, from vim.h:245, from buffer.c:28: /usr/include/sys/stat.h:251: error: syntax error before "blksize_t" /usr/include/sys/stat.h:255: error: syntax error before '}' token /usr/include/sys/stat.h:309: error: syntax error before "blksize_t" /usr/include/sys/stat.h:310: error: conflicting types for 'st_blocks' /usr/include/sys/stat.h:252: error: previous declaration of 'st_blocks' was here /usr/include/sys/stat.h:313: error: syntax error before '}' token In file included from /opt/local/bin/../lib/gcc/sparc-sun-solaris2.6/3.4.6/include/sys/signal.h:132, from /usr/include/signal.h:26, from os_unix.h:163, from vim.h:245, from buffer.c:28: /usr/include/sys/siginfo.h:259: error: syntax error before "ctid_t" /usr/include/sys/siginfo.h:292: error: syntax error before '}' token /usr/include/sys/siginfo.h:294: error: syntax error before '}' token /usr/include/sys/siginfo.h:390: error: syntax error before "ctid_t" /usr/include/sys/siginfo.h:398: error: conflicting types for '__fault' /usr/include/sys/siginfo.h:267: error: previous declaration of '__fault' was here /usr/include/sys/siginfo.h:404: error: conflicting types for '__file' /usr/include/sys/siginfo.h:273: error: previous declaration of '__file' was here /usr/include/sys/siginfo.h:420: error: conflicting types for '__prof' /usr/include/sys/siginfo.h:287: error: previous declaration of '__prof' was here /usr/include/sys/siginfo.h:424: error: conflicting types for '__rctl' /usr/include/sys/siginfo.h:291: error: previous declaration of '__rctl' was here /usr/include/sys/siginfo.h:426: error: syntax error before '}' token /usr/include/sys/siginfo.h:428: error: syntax error before '}' token /usr/include/sys/siginfo.h:432: error: syntax error before "k_siginfo_t" /usr/include/sys/siginfo.h:437: error: syntax error before '}' token In file included from /usr/include/signal.h:26, from os_unix.h:163, from vim.h:245, from buffer.c:28: /opt/local/bin/../lib/gcc/sparc-sun-solaris2.6/3.4.6/include/sys/signal.h:173: error: syntax error before "siginfo_t" In file included from os_unix.h:163, from vim.h:245, from buffer.c:28: /usr/include/signal.h:111: error: syntax error before "siginfo_t" /usr/include/signal.h:113: error: syntax error before "siginfo_t" buffer.c: In function `buflist_new': buffer.c:1502: error: storage size of 'st' isn't known buffer.c: In function `buflist_findname': buffer.c:1989: error: storage size of 'st' isn't known buffer.c: In function `setfname': buffer.c:2578: error: storage size of 'st' isn't known buffer.c: In function `otherfile_buf': buffer.c:2836: error: storage size of 'st' isn't known buffer.c: In function `buf_setino': buffer.c:2874: error: storage size of 'st' isn't known buffer.c: In function `buf_same_ino': buffer.c:2894: error: dereferencing pointer to incomplete type buffer.c:2895: error: dereferencing pointer to incomplete type *** Error code 1 make: Fatal error: Command failed for target `objects/buffer.o' Current working directory /home/xluntor/vim72/src *** Error code 1 make: Fatal error: Command failed for target `first'

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• Serial Mac OS X constantly freezes/locks/dissappears for USB to Arduino

  - by Niraj D

  I have a problem with my C++ code running in Xcode with both the AMSerial library as well as the generic C (ioctl, termios). After a fresh restart, my application works well but after I "kill" the program the Serial (I think) is not released. I have checked my open files under /dev and have killed the connection to serial USB from there, but my C++ still can't open the USB port. I have narrowed this down to being a low level Mac OS X issue, regarding blocking the port indefinitely, regardless of closing it using the aforementioned libraries. Just for context, I'm trying to send numbers through my USB port, serially to an Arduino Duemilanove at 9600 baud. Running Serial Monitor in Arduino is perfectly fine, however, running through a C++ application it freezes up my computer, occasionally, my mouse/keyboard freeze up: requiring a hard reset. How can this problem be fixed? It seems like Mac OS X is not USB friendly!

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• Qt C++ signals and slots did not fire

  - by Xegara

  I have programmed Qt a couple of times already and I really like the signals and slots feature. But now, I guess I'm having a problem when a signal is emitted from one thread, the corresponding slot from another thread is not fired. The connection was made in the main program. This is also my first time to use Qt for ROS which uses CMake. The signal fired by the QThread triggered their corresponding slots but the emitted signal of my class UserInput did not trigger the slot in tflistener where it supposed to. I have tried everything I can. Any help? The code is provided below. Main.cpp #include <QCoreApplication> #include <QThread> #include "userinput.h" #include "tfcompleter.h" int main(int argc, char** argv) { QCoreApplication app(argc, argv); QThread *thread1 = new QThread(); QThread *thread2 = new QThread(); UserInput *input1 = new UserInput(); TfCompleter *completer = new TfCompleter(); QObject::connect(input1, SIGNAL(togglePause2()), completer, SLOT(toggle())); QObject::connect(thread1, SIGNAL(started()), completer, SLOT(startCounting())); QObject::connect(thread2, SIGNAL(started()), input1, SLOT(start())); completer->moveToThread(thread1); input1->moveToThread(thread2); thread1->start(); thread2->start(); app.exec(); return 0; } What I want to do is.. There are two seperate threads. One thread is for the user input. When the user enters [space], the thread emits a signal to toggle the boolean member field of the other thread. The other thread 's task is to just continue its process if the user wants it to run, otherwise, the user does not want it to run. I wanted to grant the user to toggle the processing anytime that he wants, that's why I decided to bring them into seperate threads. The following codes are the tflistener and userinput. tfcompleter.h #ifndef TFCOMPLETER_H #define TFCOMPLETER_H #include <QObject> #include <QtCore> class TfCompleter : public QObject { Q_OBJECT private: bool isCount; public Q_SLOTS: void toggle(); void startCounting(); }; #endif tflistener.cpp #include "tfcompleter.h" #include <iostream> void TfCompleter::startCounting() { static uint i = 0; while(true) { if(isCount) std::cout << i++ << std::endl; } } void TfCompleter::toggle() { // isCount = ~isCount; std::cout << "isCount " << std::endl; } UserInput.h #ifndef USERINPUT_H #define USERINPUT_H #include <QObject> #include <QtCore> class UserInput : public QObject { Q_OBJECT public Q_SLOTS: void start(); // Waits for the keypress from the user and emits the corresponding signal. public: Q_SIGNALS: void togglePause2(); }; #endif UserInput.cpp #include "userinput.h" #include <iostream> #include <cstdio> // Implementation of getch #include <termios.h> #include <unistd.h> /* reads from keypress, doesn't echo */ int getch(void) { struct termios oldattr, newattr; int ch; tcgetattr( STDIN_FILENO, &oldattr ); newattr = oldattr; newattr.c_lflag &= ~( ICANON | ECHO ); tcsetattr( STDIN_FILENO, TCSANOW, &newattr ); ch = getchar(); tcsetattr( STDIN_FILENO, TCSANOW, &oldattr ); return ch; } void UserInput::start() { char c = 0; while (true) { c = getch(); if (c == ' ') { Q_EMIT togglePause2(); std::cout << "SPACE" << std::endl; } c = 0; } } Here is the CMakeLists.txt. I just placed it here also since I don't know maybe the CMake has also a factor here. CMakeLists.txt ############################################################################## # CMake ############################################################################## cmake_minimum_required(VERSION 2.4.6) ############################################################################## # Ros Initialisation ############################################################################## include($ENV{ROS_ROOT}/core/rosbuild/rosbuild.cmake) rosbuild_init() set(CMAKE_AUTOMOC ON) #set the default path for built executables to the "bin" directory set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin) #set the default path for built libraries to the "lib" directory set(LIBRARY_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/lib) # Set the build type. Options are: # Coverage : w/ debug symbols, w/o optimization, w/ code-coverage # Debug : w/ debug symbols, w/o optimization # Release : w/o debug symbols, w/ optimization # RelWithDebInfo : w/ debug symbols, w/ optimization # MinSizeRel : w/o debug symbols, w/ optimization, stripped binaries #set(ROS_BUILD_TYPE Debug) ############################################################################## # Qt Environment ############################################################################## # Could use this, but qt-ros would need an updated deb, instead we'll move to catkin # rosbuild_include(qt_build qt-ros) rosbuild_find_ros_package(qt_build) include(${qt_build_PACKAGE_PATH}/qt-ros.cmake) rosbuild_prepare_qt4(QtCore) # Add the appropriate components to the component list here ADD_DEFINITIONS(-DQT_NO_KEYWORDS) ############################################################################## # Sections ############################################################################## #file(GLOB QT_FORMS RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} ui/*.ui) #file(GLOB QT_RESOURCES RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} resources/*.qrc) file(GLOB_RECURSE QT_MOC RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} FOLLOW_SYMLINKS include/rgbdslam_client/*.hpp) #QT4_ADD_RESOURCES(QT_RESOURCES_CPP ${QT_RESOURCES}) #QT4_WRAP_UI(QT_FORMS_HPP ${QT_FORMS}) QT4_WRAP_CPP(QT_MOC_HPP ${QT_MOC}) ############################################################################## # Sources ############################################################################## file(GLOB_RECURSE QT_SOURCES RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} FOLLOW_SYMLINKS src/*.cpp) ############################################################################## # Binaries ############################################################################## rosbuild_add_executable(rgbdslam_client ${QT_SOURCES} ${QT_MOC_HPP}) #rosbuild_add_executable(rgbdslam_client ${QT_SOURCES} ${QT_RESOURCES_CPP} ${QT_FORMS_HPP} ${QT_MOC_HPP}) target_link_libraries(rgbdslam_client ${QT_LIBRARIES})

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• How to set baud rate to 307200 on Linux?

  - by cairol

  Basically I'm using the following code to set the baud rate of a serial port: struct termios options; tcgetattr(fd, &options); cfsetispeed(&options, B115200); cfsetospeed(&options, B115200); tcsetattr(fd, TCSANOW, &options); This works very well. But know I have to communicate with a device that uses a baud rate of 307200. How can I set that? cfsetispeed(&options, B307200); doesn't work, there is no B307200 defined.

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• Clarification on signals (sighup), jobs, and the controlling terminal

  - by asolberg

  So I've read two different perspectives and I'm trying to figure out which one is right. 1) Some sources online say that signals sent from the controlling terminal are ONLY sent to the foreground process group. That means if want a process to continue running in the background when you logout it is sufficient to simply suspend the job (ctrl-Z) and resume it in the background (bg). Then you can log out and it will continue to run because SIGHUP is only sent to the foreground job. See: http://blog.nelhage.com/2010/01/a-brief-introduction-to-termios-signaling-and-job-control/ ...In addition, if any signal-generating character is read by a terminal, it generates the appropriate signal to the foreground process group.... 2) Other sources claim you need to use the "nohup" command at the time the program is executed, or failing that, issue a "disown" command during execution to remove it from the jobs table that listens for SIGHUP. They say if you don't do this when you logout your process will also exit even if its running in a background process group. For example: http://docstore.mik.ua/orelly/unix3/upt/ch23_11.htm ...If I log out anyway, the shell sends my background job a HUP signal... In my own experiments with Ubuntu linux it seems like 1) is correct. I executed a command: "sleep 20 &" then logged out, logged back in and pressed did a "ps aux". Sure enough the sleep command was still running. So then why is it that so many people seem to believe number 2? And if all you have to do is place a job in the background to keep it running why do so many people use "nohup" and "disown?"

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• Reading Serial Data From C (OSX /dev/tty)

  - by Jud Stephenson

  I am trying to read data from a bluetooth barcode scanner (KDC300) using C. Here is the code I have so far, and the program successfully establishes a bluetooth connection to the scanner, but when a barcode is scanned, no input is displayed on the screen (Eventually more will be done with the data, but we have to get it working first, right). Here is the program: #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <fcntl.h> #include <errno.h> #include <termios.h> #include <sys/ioctl.h> int main (int argc, const char * argv[]) { // define vars int STOP = 0; //char buf[255]; if(argv[1]) { int fd = open("/dev/tty.KDC1", O_RDONLY); if(fd == -1) { printf("%s", strcat("Unable to open /dev/tty.", argv[1])); } int res; while(STOP == 0) { while((res = read(fd,buf,255)) == 0); { if(res > 0) { buf[res]=0; printf("%s:%d\n", buf, res); if(buf[sizeof(buf)]=='\n') break; } } } } return 0; } If anyone has any ideas, I am at a loss on this so far. If it is any help, I can run screen /dev/tty.KDC1 and any barcodes scanned on the scanner appear in the terminal, I just can't do anything with the data. Jud

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• Garbage data from serial port.

  - by sasayins

  Hi I wrote a code in Linux platform that read the data in serial port, my code below: int fd; char *rbuff=NULL; struct termios new_opt, old_opt; int ret; fd = open("/dev/ttyS0", O_RDWR | O_NOCTTY); if( fd == -1 ) { printf("Can't open file: %s\n", strerror(errno)); return -1; } tcgetattr(fd, &old_opt); new_opt.c_cflag = B115200 | CS8 | CLOCAL | CREAD; new_opt.c_iflag = IGNPAR /*| ICRNL*/; new_opt.c_oflag = 0; new_opt.c_lflag = ICANON; tcsetattr(fd, TCSANOW, &new_opt); rbuff = malloc(NBUFF); printf("reading..\n"); memset(rbuff,0x00,NBUFF); ret = read(fd, rbuff, NBUFF); printf("value:%s",rbuff); if(ret == -1) { printf("Read error:%s\n",strerror(errno)); return -1; } tcsetattr(fd, TCSANOW, &old_opt); close(fd); My problem is the code above doesn't read the first data that was transmitted, then the second transmission the data is garbage, then the third is the normal data. Did I missed a setting in the serial port? Thanks.

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• train wreck. Rails requires RubyGems >= 1.3.2

  - by JZ

  I recently upgraded ruby to ruby 1.8.7 (2009-06-12 patchlevel 174) [i686-darwin10] and I think I broke rails. When I attempt to load rails. I get an odd message. Please help! $ ruby script/server Rails requires RubyGems = 1.3.2. Please install RubyGems and try again: http://rubygems.rubyforge.org $ rails -v Rails 3.0.0.beta $ gem -v 1.3.6 $ which gem /usr/bin/gem $ whereis gem /usr/bin/gem $ which rails /usr/bin/rails $ whereis rails /usr/bin/rails $ /usr/bin/gem -v 1.3.6 $ /usr/bin/rails -v Rails 3.0.0.beta $ ruby script/console Rails requires RubyGems >= 1.3.2. Please install RubyGems and try again: http://rubygems.rubyforge.org $ gem list rails *** LOCAL GEMS *** rails (3.0.0.beta, 2.3.5, 2.2.2, 1.2.6) $ gem list *** LOCAL GEMS *** abstract (1.0.0) actionmailer (3.0.0.beta, 2.3.5, 2.2.2, 1.3.6) actionpack (3.0.0.beta, 2.3.5, 2.2.2, 1.13.6) actionwebservice (1.2.6) activemerchant (1.4.1) activemodel (3.0.0.beta) activerecord (3.0.0.beta, 2.3.5, 2.2.2, 1.15.6) activerecord-tableless (0.1.0) activeresource (3.0.0.beta, 2.3.5, 2.2.2) activesupport (3.0.0.beta, 2.3.5, 2.2.2, 1.4.4) acts_as_ferret (0.4.3) arel (0.2.pre) authlogic (2.1.3) builder (2.1.2) bundler (0.9.3) calendar_date_select (1.15) capistrano (2.5.2) cgi_multipart_eof_fix (2.5.0) chronic (0.2.3) columnize (0.3.1) compass (0.8.17) daemons (1.0.10) dnssd (0.6.0) erubis (2.6.5) fastercsv (1.5.0) fastthread (1.0.1) fcgi (0.8.7) ferret (0.11.6) flay (1.4.0) flog (2.4.0) gbarcode (0.98.16) gem_plugin (0.2.3) git (1.2.5) haml (2.2.15) haml-edge (2.3.100) highline (1.5.0) hoe (2.4.0) hpricot (0.6.164) i18n (0.3.3) javan-whenever (0.3.7) jeweler (1.4.0) jscruggs-metric_fu (1.1.5) json_pure (1.2.0) libxml-ruby (1.1.2) linecache (0.43) mail (2.1.2) mechanize (0.9.3) memcache-client (1.7.8) mime-types (1.16) mislav-will_paginate (2.3.11) mocha (0.9.7) mojombo-chronic (0.3.0) mongrel (1.1.5) needle (1.3.0) net-scp (1.0.1) net-sftp (2.0.1, 1.1.1) net-ssh (2.0.4, 1.1.4) net-ssh-gateway (1.0.0) nifty-generators (0.3.0) nokogiri (1.4.0) openrain-action_mailer_tls (1.1.3) passenger (2.2.5) polyglot (0.2.9) prawn (0.6.3) prawn-core (0.6.3) prawn-format (0.2.3) prawn-layout (0.3.2) prawn-security (0.1.1) rack (1.1.0, 1.0.1) rack-mount (0.4.5) rack-test (0.5.3) rails (3.0.0.beta, 2.3.5, 2.2.2, 1.2.6) railties (3.0.0.beta) rake (0.8.7, 0.8.3) rake-compiler (0.6.0) RedCloth (4.1.1) reek (1.2.6) relevance-rcov (0.9.2.1) rmagick (2.12.2) roodi (2.1.0) rsl-stringex (1.0.3) rspec (1.2.9) rspec-rails (1.2.9) ruby-debug (0.10.3) ruby-debug-base (0.10.3) ruby-openid (2.1.2) ruby-yadis (0.3.4) ruby2ruby (1.2.4) ruby_parser (2.0.4) rubyforge (2.0.3) rubygems-update (1.3.6, 1.3.5) rubynode (0.1.5) searchlogic (2.3.9) sexp_processor (3.0.3) spree (0.9.4) sqlite3-ruby (1.2.5, 1.2.4) termios (0.9.4) test-unit (2.0.5) text-format (1.0.0) text-hyphen (1.0.0) thor (0.13.0) tlsmail (0.0.1) topfunky-gruff (0.3.5) treetop (1.4.3) tzinfo (0.3.16) xmpp4r (0.4)

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• Rails requires Rubygems but I have the gems

  - by fogonthedowns

  Update I notice that which ruby and whereis ruby are different locations which ruby /opt/local/bin/ruby whereis ruby /usr/bin/ruby I recently upgraded ruby to ruby 1.8.7 (2009-06-12 patchlevel 174) [i686-darwin10] and I think I broke rails. When I attempt to load rails. I get an odd message. Please help! $ ruby script/server Rails requires RubyGems = 1.3.2. Please install RubyGems and try again: http://rubygems.rubyforge.org $ rails -v Rails 3.0.0.beta $ gem -v 1.3.6 $ which gem /usr/bin/gem $ whereis gem /usr/bin/gem $ which rails /usr/bin/rails $ whereis rails /usr/bin/rails $ /usr/bin/gem -v 1.3.6 $ /usr/bin/rails -v Rails 3.0.0.beta $ ruby script/console Rails requires RubyGems >= 1.3.2. Please install RubyGems and try again: http://rubygems.rubyforge.org $ gem list rails *** LOCAL GEMS *** rails (3.0.0.beta, 2.3.5, 2.2.2, 1.2.6) $ gem list *** LOCAL GEMS *** abstract (1.0.0) actionmailer (3.0.0.beta, 2.3.5, 2.2.2, 1.3.6) actionpack (3.0.0.beta, 2.3.5, 2.2.2, 1.13.6) actionwebservice (1.2.6) activemerchant (1.4.1) activemodel (3.0.0.beta) activerecord (3.0.0.beta, 2.3.5, 2.2.2, 1.15.6) activerecord-tableless (0.1.0) activeresource (3.0.0.beta, 2.3.5, 2.2.2) activesupport (3.0.0.beta, 2.3.5, 2.2.2, 1.4.4) acts_as_ferret (0.4.3) arel (0.2.pre) authlogic (2.1.3) builder (2.1.2) bundler (0.9.3) calendar_date_select (1.15) capistrano (2.5.2) cgi_multipart_eof_fix (2.5.0) chronic (0.2.3) columnize (0.3.1) compass (0.8.17) daemons (1.0.10) dnssd (0.6.0) erubis (2.6.5) fastercsv (1.5.0) fastthread (1.0.1) fcgi (0.8.7) ferret (0.11.6) flay (1.4.0) flog (2.4.0) gbarcode (0.98.16) gem_plugin (0.2.3) git (1.2.5) haml (2.2.15) haml-edge (2.3.100) highline (1.5.0) hoe (2.4.0) hpricot (0.6.164) i18n (0.3.3) javan-whenever (0.3.7) jeweler (1.4.0) jscruggs-metric_fu (1.1.5) json_pure (1.2.0) libxml-ruby (1.1.2) linecache (0.43) mail (2.1.2) mechanize (0.9.3) memcache-client (1.7.8) mime-types (1.16) mislav-will_paginate (2.3.11) mocha (0.9.7) mojombo-chronic (0.3.0) mongrel (1.1.5) needle (1.3.0) net-scp (1.0.1) net-sftp (2.0.1, 1.1.1) net-ssh (2.0.4, 1.1.4) net-ssh-gateway (1.0.0) nifty-generators (0.3.0) nokogiri (1.4.0) openrain-action_mailer_tls (1.1.3) passenger (2.2.5) polyglot (0.2.9) prawn (0.6.3) prawn-core (0.6.3) prawn-format (0.2.3) prawn-layout (0.3.2) prawn-security (0.1.1) rack (1.1.0, 1.0.1) rack-mount (0.4.5) rack-test (0.5.3) rails (3.0.0.beta, 2.3.5, 2.2.2, 1.2.6) railties (3.0.0.beta) rake (0.8.7, 0.8.3) rake-compiler (0.6.0) RedCloth (4.1.1) reek (1.2.6) relevance-rcov (0.9.2.1) rmagick (2.12.2) roodi (2.1.0) rsl-stringex (1.0.3) rspec (1.2.9) rspec-rails (1.2.9) ruby-debug (0.10.3) ruby-debug-base (0.10.3) ruby-openid (2.1.2) ruby-yadis (0.3.4) ruby2ruby (1.2.4) ruby_parser (2.0.4) rubyforge (2.0.3) rubygems-update (1.3.6, 1.3.5) rubynode (0.1.5) searchlogic (2.3.9) sexp_processor (3.0.3) spree (0.9.4) sqlite3-ruby (1.2.5, 1.2.4) termios (0.9.4) test-unit (2.0.5) text-format (1.0.0) text-hyphen (1.0.0) thor (0.13.0) tlsmail (0.0.1) topfunky-gruff (0.3.5) treetop (1.4.3) tzinfo (0.3.16) xmpp4r (0.4)

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• Debugging matchit plugin in vim (under Cygwin)

  - by system PAUSE

  The "matchit" plugin for vim is supposed to allow you to use the % key to jump between matching start/end tags when editing HTML, as well as /* and */ comment delimiters when editing other kinds of code. I've followed the exact instructions in ":help matchit", but % still doesn't work for me. It seems silly to ask "Why doesn't this work?" so instead I'm asking How can I diagnose the problem? Pointers to references are welcome, but specific vim-plugin-debugging techniques are preferred. Here is the ~/.vim directory: $ ls -ltaGR ~/.vim /cygdrive/y/.vim: total 0 drwxr-xr-x 1 spause 0 Sep 17 13:20 .. drwxr-xr-x 1 spause 0 Sep 16 13:59 doc drwxr-xr-x 1 spause 0 Sep 16 13:58 . drwxr-xr-x 1 spause 0 Sep 16 13:58 plugin /cygdrive/y/.vim/doc: total 24 -rw-r--r-- 1 spause 1961 Sep 16 13:59 tags drwxr-xr-x 1 spause 0 Sep 16 13:59 . -rw-r--r-- 1 spause 19303 Sep 16 13:58 matchit.txt drwxr-xr-x 1 spause 0 Sep 16 13:58 .. /cygdrive/y/.vim/plugin: total 32 drwxr-xr-x 1 spause 0 Sep 16 13:58 .. -rw-r--r-- 1 spause 30714 Sep 16 13:58 matchit.vim drwxr-xr-x 1 spause 0 Sep 16 13:58 . I am running vim 7.2 under Cygwin (installed Fall 2008). cygcheck shows: 1829k 2008/06/12 C:\cygwin\bin\cygwin1.dll Cygwin DLL version info: DLL version: 1.5.25 DLL epoch: 19 DLL bad signal mask: 19005 DLL old termios: 5 DLL malloc env: 28 API major: 0 API minor: 156 Shared data: 4 DLL identifier: cygwin1 Mount registry: 2 Cygnus registry name: Cygnus Solutions Cygwin registry name: Cygwin Program options name: Program Options Cygwin mount registry name: mounts v2 Cygdrive flags: cygdrive flags Cygdrive prefix: cygdrive prefix Cygdrive default prefix: Build date: Thu Jun 12 19:34:46 CEST 2008 CVS tag: cr-0x5f1 Shared id: cygwin1S4 In vim, :set shows: --- Options --- autoindent fileformat=dos shiftwidth=3 background=dark filetype=html syntax=html cedit=^F scroll=24 tabstop=3 expandtab shelltemp textmode viminfo='20,<50,s10,h Notably, the syntax and filetype are both recognized as HTML. (The syntax colouring is just fine.) If additional info is needed, please comment. UPDATE: Per answer by too much php: After trying vim -V1, I had changed my .vimrc to include a line set nocp so the compatible option is not on. :let loadad_matchit loaded_matchit #1 :set runtimepath? runtimepath=~/.vim,/usr/share/vim/vimfiles,/usr/share/vim/vim72,/usr/share/vim/vimfiles/after,~/.vim/after (~ is /cygdrive/y) Per answer by michael: :scriptnames 1: /cygdrive/y/.vimrc 2: /usr/share/vim/vim72/syntax/syntax.vim 3: /usr/share/vim/vim72/syntax/synload.vim 4: /usr/share/vim/vim72/syntax/syncolor.vim 5: /usr/share/vim/vim72/filetype.vim 6: /usr/share/vim/vim72/colors/evening.vim 7: /cygdrive/y/.vim/plugin/matchit.vim 8: /cygdrive/y/.vim/plugin/python_match.vim 9: /usr/share/vim/vim72/plugin/getscriptPlugin.vim 10: /usr/share/vim/vim72/plugin/gzip.vim 11: /usr/share/vim/vim72/plugin/matchparen.vim 12: /usr/share/vim/vim72/plugin/netrwPlugin.vim 13: /usr/share/vim/vim72/plugin/rrhelper.vim 14: /usr/share/vim/vim72/plugin/spellfile.vim 15: /usr/share/vim/vim72/plugin/tarPlugin.vim 16: /usr/share/vim/vim72/plugin/tohtml.vim 17: /usr/share/vim/vim72/plugin/vimballPlugin.vim 18: /usr/share/vim/vim72/plugin/zipPlugin.vim 19: /usr/share/vim/vim72/syntax/html.vim 20: /usr/share/vim/vim72/syntax/javascript.vim 21: /usr/share/vim/vim72/syntax/vb.vim 22: /usr/share/vim/vim72/syntax/css.vim Note that matchit.vim, html.vim, tohtml.vim, css.vim, and javascript.vim are all present. :echo b:match_words E121: Undefined variable: b:match_words E15: Invalid expression: b:match_words Hm, this looks highly relevant. I'm now looking through :help matchit-debug to find out how to fix b:match_words.

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• migrating simple rails database to mysql

  - by joseph-misiti

  i am interested in creating a rails app with a mysql database. i am new to rails and am just trying to start creating something simple: rails -d mysql MyMoviesSQL cd MyMoviesSQL script/generate scaffold Movies title:string rating:integer rake db:migrate i am seeing the following error: rake aborted! NoMethodError: undefined method `ord' for 0:Fixnum: SET NAMES 'utf8' if i do a trace: ** Invoke db:migrate (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute db:migrate rake aborted! NoMethodError: undefined method ord' for 0:Fixnum: SET NAMES 'utf8' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract_adapter.rb:219:inlog' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/mysql_adapter.rb:323:in execute' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/mysql_adapter.rb:599:inconfigure_connection' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/mysql_adapter.rb:594:in connect' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/mysql_adapter.rb:203:ininitialize' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/mysql_adapter.rb:75:in new' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/mysql_adapter.rb:75:inmysql_connection' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in send' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:innew_connection' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:245:in checkout_new_connection' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:188:incheckout' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in loop' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:incheckout' /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/monitor.rb:242:in synchronize' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:183:incheckout' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:98:in connection' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:326:inretrieve_connection' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_specification.rb:123:in retrieve_connection' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_specification.rb:115:inconnection' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/migration.rb:435:in initialize' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/migration.rb:400:innew' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/migration.rb:400:in up' /Library/Ruby/Gems/1.8/gems/activerecord-2.3.5/lib/active_record/migration.rb:383:inmigrate' /Library/Ruby/Gems/1.8/gems/rails-2.3.5/lib/tasks/databases.rake:116 /Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in call' /Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:inexecute' /Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in each' /Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:inexecute' /Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in invoke_with_call_chain' /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/monitor.rb:242:insynchronize' /Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in invoke_with_call_chain' /Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:ininvoke' /Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2051:in invoke_task' /Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:intop_level' /Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in each' /Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:intop_level' /Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in standard_exception_handling' /Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2023:intop_level' /Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2001:in run' /Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:instandard_exception_handling' /Library/Ruby/Gems/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in run' /Library/Ruby/Gems/1.8/gems/rake-0.8.7/bin/rake:31 /usr/bin/rake:19:inload' /usr/bin/rake:19 here are my versions: rails - 2.3.5 ruby - 1.8.6 gem list * LOCAL GEMS * actionmailer (2.3.5, 1.3.6) actionpack (2.3.5, 1.13.6) actionwebservice (1.2.6) activerecord (2.3.5, 1.15.6) activeresource (2.3.5) activesupport (2.3.5, 1.4.4) acts_as_ferret (0.4.1) capistrano (2.0.0) cgi_multipart_eof_fix (2.5.0) daemons (1.0.9) dbi (0.4.3) deprecated (2.0.1) dnssd (0.6.0) fastthread (1.0.1) fcgi (0.8.7) ferret (0.11.4) gem_plugin (0.2.3) highline (1.2.9) hpricot (0.6) libxml-ruby (0.9.5, 0.3.8.4) mongrel (1.1.4) needle (1.3.0) net-sftp (1.1.0) net-ssh (1.1.2) rack (1.0.1) rails (2.3.5) rake (0.8.7, 0.7.3) RedCloth (3.0.4) ruby-openid (1.1.4) ruby-yadis (0.3.4) rubygems-update (1.3.6) rubynode (0.1.3) sqlite3-ruby (1.2.1) termios (0.9.4) also, if i need to add a patch to FixNum, can someone please tell which file to add the patch to. thanks for your help

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• Having trouble getting cucumber 6.3 to run on rails 2.3.4

  - by Yak

  Hi, I am trying to to get cucumber to run with no luck. Here is the error I am seeing: cucumber features Using the default profile... no such file to load -- test/ (MissingSourceFile) /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in gem_original_require' /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in polyglot_original_require' /Library/Ruby/Gems/1.8/gems/polyglot-0.3.0/lib/polyglot.rb:65:in require' /Library/Ruby/Gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:158:in require' /Users/yakovrabinovich/Starstreet/starstreet/vendor/gems/cucumber-0.6.3/bin/../lib/cucumber/rails/world.rb:11 /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in gem_original_require' /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in polyglot_original_require' /Library/Ruby/Gems/1.8/gems/polyglot-0.3.0/lib/polyglot.rb:65:in require' /Library/Ruby/Gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:158:in require' /Library/Ruby/Gems/1.8/gems/cucumber-rails-0.3.0/lib/cucumber/rails/rspec.rb:1 /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in gem_original_require' /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in polyglot_original_require' /Library/Ruby/Gems/1.8/gems/polyglot-0.3.0/lib/polyglot.rb:65:in require' /Library/Ruby/Gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:158:in require' /Users/yakovrabinovich/Starstreet/starstreet/features/support/env.rb:11 /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in gem_original_require' /Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in polyglot_original_require' /Library/Ruby/Gems/1.8/gems/polyglot-0.3.0/lib/polyglot.rb:65:in require' /Library/Ruby/Gems/1.8/gems/cucumber-0.6.3/bin/../lib/cucumber/rb_support/rb_language.rb:124:in load_code_file' /Library/Ruby/Gems/1.8/gems/cucumber-0.6.3/bin/../lib/cucumber/step_mother.rb:85:in load_code_file' /Library/Ruby/Gems/1.8/gems/cucumber-0.6.3/bin/../lib/cucumber/step_mother.rb:77:in load_code_files' /Library/Ruby/Gems/1.8/gems/cucumber-0.6.3/bin/../lib/cucumber/step_mother.rb:76:in each' /Library/Ruby/Gems/1.8/gems/cucumber-0.6.3/bin/../lib/cucumber/step_mother.rb:76:in load_code_files' /Library/Ruby/Gems/1.8/gems/cucumber-0.6.3/bin/../lib/cucumber/cli/main.rb:48:in execute!' /Library/Ruby/Gems/1.8/gems/cucumber-0.6.3/bin/../lib/cucumber/cli/main.rb:20:in execute' /Library/Ruby/Gems/1.8/gems/cucumber-0.6.3/bin/cucumber:8 /usr/bin/cucumber:19:in `load' /usr/bin/cucumber:19 Here are my gems: Yakov-Rabinovichs-MacBook:1.8 yakovrabinovich$ gem list * LOCAL GEMS * aasm (2.1.3) acl9 (0.11.0) actionmailer (2.3.4, 2.2.2, 1.3.6) actionpack (2.3.4, 2.2.2, 1.13.6) actionwebservice (1.2.6) activerecord (2.3.4, 2.2.2, 1.15.6) activeresource (2.3.4, 2.2.2) activesupport (2.3.4, 2.2.2, 1.4.4) acts_as_ferret (0.4.3) authlogic (2.1.3) bgetting-hominid (1.2.0) builder (2.1.2) capistrano (2.5.2) capistrano-ext (1.2.1) cgi_multipart_eof_fix (2.5.0) chronic (0.2.3) columnize (0.3.1) configatron (2.5.1) cucumber (0.6.3) cucumber-rails (0.3.0) daemons (1.0.10) database_cleaner (0.5.0) diff-lcs (1.1.2) dnssd (0.6.0) factory_girl (1.2.3) fastthread (1.0.1) fcgi (0.8.7) ferret (0.11.6) gem_plugin (0.2.3) gemcutter (0.4.1) highline (1.5.0) hoe (2.5.0) hominid (2.1.0) hpricot (0.6.164) json (1.2.0) json_pure (1.2.0) libxml-ruby (1.1.2) linecache (0.43) mocha (0.9.8) mongrel (1.1.5) needle (1.3.0) net-scp (1.0.1) net-sftp (2.0.1, 1.1.1) net-ssh (2.0.16, 2.0.4, 1.1.4) net-ssh-gateway (1.0.0) nokogiri (1.4.1) oauth (0.3.6) pg (0.8.0) polyglot (0.3.0) rack (1.0.1) rack-test (0.5.3) rails (2.3.4, 2.2.2, 1.2.6) rake (0.8.7, 0.8.3) RedCloth (4.1.1) rspec (1.3.0) rspec-rails (1.3.2) ruby-debug (0.10.3) ruby-debug-base (0.10.3) ruby-hmac (0.4.0) ruby-openid (2.1.2) ruby-yadis (0.3.4) rubyforge (2.0.3) rubygems-update (1.3.5) rubynode (0.1.5) sqlite3-ruby (1.2.4) term-ansicolor (1.0.4) termios (0.9.4) test-unit (1.2.3) thoughtbot-factory_girl (1.2.2) thoughtbot-shoulda (2.10.2) treetop (1.4.4) whenever (0.4.1) will_paginate (2.3.11) xmpp4r (0.4) yamler (0.1.0) Any help would be greatly appreciated!

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• Rails 3.0.3 and Polyglot Gem problem

  - by user557417

  Hello all. I hope you can help me. I had a rails app running locally, and also uploaded and running on Heroku. All was well. Last week, I started work again and ran into a snag. At the beginning of my day, I opened up Terminal and ran 'rails s' to start the local server. I received this error: doug-naegeles-macbook-pro-17:elig_check dougnaegele$ rails s /Library/Ruby/Gems/1.8/gems/bundler-1.0.7/lib/bundler/resolver.rb:129:in resolve': Could not find gem 'polyglot', required by 'rails (= 3.0.3)', in any of the sources (Bundler::VersionConflict) from /Library/Ruby/Gems/1.8/gems/bundler-1.0.7/lib/bundler/resolver.rb:127:incatch' from /Library/Ruby/Gems/1.8/gems/bundler-1.0.7/lib/bundler/resolver.rb:127:in resolve' from /Library/Ruby/Gems/1.8/gems/bundler-1.0.7/lib/bundler/definition.rb:151:inresolve' from /Library/Ruby/Gems/1.8/gems/bundler-1.0.7/lib/bundler/definition.rb:90:in specs' from /Library/Ruby/Gems/1.8/gems/bundler-1.0.7/lib/bundler/definition.rb:135:inspecs_for' from /Library/Ruby/Gems/1.8/gems/bundler-1.0.7/lib/bundler/definition.rb:124:in requested_specs' from /Library/Ruby/Gems/1.8/gems/bundler-1.0.7/lib/bundler/environment.rb:23:inrequested_specs' from /Library/Ruby/Gems/1.8/gems/bundler-1.0.7/lib/bundler/runtime.rb:11:in setup' from /Library/Ruby/Gems/1.8/gems/bundler-1.0.7/lib/bundler.rb:100:insetup' from /Users/dougnaegele/Sites/elig_check/config/boot.rb:8 from script/rails:5:in `require' from script/rails:5 When I run 'gem list'..i can see Polyglot listed: doug-naegeles-macbook-pro-17:elig_check dougnaegele$ gem list * LOCAL GEMS * abstract (1.0.0) actionmailer (3.0.3, 2.3.5, 2.2.2, 1.3.6) actionpack (3.0.3, 2.3.5, 2.2.2, 1.13.6) actionwebservice (1.2.6) activemodel (3.0.3) activerecord (3.0.3, 2.3.5, 2.2.2, 1.15.6) activeresource (3.0.3, 2.3.5, 2.2.2) activesupport (3.0.3, 2.3.5, 2.2.2, 1.4.4) acts_as_ferret (0.5.2, 0.4.3) arel (2.0.6, 2.0.4) authlogic (2.1.6) blythedunham-sms_on_rails (0.1.0) builder (3.0.0, 2.1.2) bundler (1.0.7) capistrano (2.5.19, 2.5.2) cgi_multipart_eof_fix (2.5.0) color (1.4.1) configuration (1.2.0) crack (0.1.8) daemons (1.1.0, 1.0.10) derailed-ziya (2.1.5) dnssd (1.4, 0.6.0) erubis (2.6.6) fastthread (1.0.7, 1.0.1) fcgi (0.8.8, 0.8.7) ferret (0.11.6) gem_plugin (0.2.3) googlecharts (1.6.0) heroku (1.14.10, 1.14.3) highline (1.6.1, 1.5.0) hpricot (0.8.3, 0.6.164) httparty (0.6.1) i18n (0.5.0, 0.4.2) jk-ferret (0.11.8.2) json_pure (1.4.6) launchy (0.3.7) libxml-ruby (1.1.4, 1.1.2) little-plugger (1.1.2) logging (1.4.3) mail (2.2.12, 2.2.10) mattetti-googlecharts (1.4.0) mime-types (1.16) mongrel (1.1.5) mysql (2.8.1) needle (1.3.0) net-scp (1.0.4, 1.0.1) net-sftp (2.0.5, 2.0.1, 1.1.1) net-ssh (2.0.23, 2.0.4, 1.1.4) net-ssh-gateway (1.0.1, 1.0.0) nifty-generators (0.4.2) polyglot (0.3.1) rack (1.2.1, 1.0.1) rack-mount (0.6.13) rack-test (0.5.6) rails (3.0.3, 2.3.5, 2.2.2, 1.2.6) railties (3.0.3) rake (0.8.7, 0.8.3) RedCloth (4.2.3, 4.1.1) rest-client (1.6.1) ruby-openid (2.1.8, 2.1.2) ruby-yadis (0.3.4) rubygems-update (1.3.7, 1.3.6) rubynode (0.1.5) sequel (3.18.0, 3.17.0) sinatra (1.1.0, 1.0) sqlite3-ruby (1.3.2, 1.2.5, 1.2.4) static_record_cache (0.2.0) taps (0.3.14) termios (0.9.4) thor (0.14.6) tilt (1.1) treetop (1.4.9) twilio (2.9.0) twiliolib (2.0.7) tzinfo (0.3.23) xmpp4r (0.5, 0.4) When I run 'gem sources' I get this: doug-naegeles-macbook-pro-17:elig_check dougnaegele$ gem sources * CURRENT SOURCES * rubygems.org/ gems.github.com gems.github.com gems.github.com/ gems.github.com gems.rubyforge.org Which looks right -- that's where Polyglot lives. When I run 'bundle install' I get this: doug-naegeles-macbook-pro-17:elig_check dougnaegele$ bundle install Fetching source index for http://rubygems.org/ Could not find gem 'polyglot', required by 'rails (= 3.0.3)', in any of the sources Any idea? I've tried to reinstall the gem, run 'bundle install' etc. No luck. (I have a suspicion that this - rails (3.0.3, 2.3.5, 2.2.2, 1.2.6) may be the problem, but I don't want to go down that road just yet. I have apps running on 2.3.5 that have not been refactored for rails 3.0) Thanks in advance! Doug

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• Clear data at serial port in Linux in C?

  - by ipkiss

  Hello guys, I am testing the sending and receiving programs with the code as The main() function is below: include include include include include include include "read_write.h" int fd; int initport(int fd) { struct termios options; // Get the current options for the port... tcgetattr(fd, &options); // Set the baud rates to 19200... cfsetispeed(&options, B9600); cfsetospeed(&options, B9600); // Enable the receiver and set local mode... options.c_cflag |= (CLOCAL | CREAD); options.c_cflag &= ~PARENB; options.c_cflag &= ~CSTOPB; options.c_cflag &= ~CSIZE; options.c_cflag |= CS8; // Set the new options for the port... tcsetattr(fd, TCSANOW, &options); return 1; } int main(int argc, char **argv) { fd = open("/dev/pts/2", O_RDWR | O_NOCTTY | O_NDELAY); if (fd == -1) { perror("open_port: Unable to open /dev/pts/1 - "); return 1; } else { fcntl(fd, F_SETFL, 0); } printf("baud=%d\n", getbaud(fd)); initport(fd); printf("baud=%d\n", getbaud(fd)); char sCmd[254]; sCmd[0] = 0x41; sCmd[1] = 0x42; sCmd[2] = 0x43; sCmd[3] = 0x00; if (!writeport(fd, sCmd)) { printf("write failed\n"); close(fd); return 1; } printf("written:%s\n", sCmd); usleep(500000); char sResult[254]; fcntl(fd, F_SETFL, FNDELAY); if (!readport(fd,sResult)) { printf("read failed\n"); close(fd); return 1; } printf("readport=%s\n", sResult); close(fd); return 0; } read_write.h: #include <stdio.h> /* Standard input/output definitions */ include /* String function definitions */ include /* UNIX standard function definitions */ include /* File control definitions */ include /* Error number definitions */ include /* POSIX terminal control definitions */ int writeport(int fd, char *chars) { int len = strlen(chars); chars[len] = 0x0d; // stick a after the command chars[len+1] = 0x00; // terminate the string properly int n = write(fd, chars, strlen(chars)); if (n < 0) { fputs("write failed!\n", stderr); return 0; } return 1; } int readport(int fd, char *result) { int iIn = read(fd, result, 254); result[iIn-1] = 0x00; if (iIn < 0) { if (errno == EAGAIN) { printf("SERIAL EAGAIN ERROR\n"); return 0; } else { printf("SERIAL read error %d %s\n", errno, strerror(errno)); return 0; } } return 1; } and got the issue: In order to test with serial port, I used the socat (https://help.ubuntu.com/community/VirtualSerialPort ) to create a pair serial ports on Linux and test my program with these port. The first time the program sends the data and the program receives data is ok. However, if I read again or even re-write the new data into the serial port, the return data is always null until I stop the virtual serial port and start it again, then the write and read data is ok, but still, only one time. (In the real case, the sending part will be done by another device, I am just taking care of the reading data from the serial port. I wrote both parts just to test my reading code.) Does anyone have any ideas? Thanks a lot.

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• Serial port : Read data problem, not reading complete data

  - by Anuj Mehta

  Hi I have an application where I am sending data via serial port from PC1 (Java App) and reading that data in PC2 (C++ App). The problem that I am facing is that my PC2 (C++ App) is not able to read complete data sent by PC1 i.e. from my PC1 I am sending 190 bytes but PC2 is able to read close to 140 bytes though I am trying to read in a loop. Below is code snippet of my C++ App Open the connection to serial port serialfd = open( serialPortName.c_str(), O_RDWR | O_NOCTTY | O_NDELAY); if (serialfd == -1) { /* * Could not open the port. */ TRACE << "Unable to open port: " << serialPortName << endl; } else { TRACE << "Connected to serial port: " << serialPortName << endl; fcntl(serialfd, F_SETFL, 0); } Configure the Serial Port parameters struct termios options; /* * Get the current options for the port... */ tcgetattr(serialfd, &options); /* * Set the baud rates to 9600... */ cfsetispeed(&options, B38400); cfsetospeed(&options, B38400); /* * 8N1 * Data bits - 8 * Parity - None * Stop bits - 1 */ options.c_cflag &= ~PARENB; options.c_cflag &= ~CSTOPB; options.c_cflag &= ~CSIZE; options.c_cflag |= CS8; /* * Enable hardware flow control */ options.c_cflag |= CRTSCTS; /* * Enable the receiver and set local mode... */ options.c_cflag |= (CLOCAL | CREAD); // Flush the earlier data tcflush(serialfd, TCIFLUSH); /* * Set the new options for the port... */ tcsetattr(serialfd, TCSANOW, &options); Now I am reading data const int MAXDATASIZE = 512; std::vector<char> m_vRequestBuf; char buffer[MAXDATASIZE]; int totalBytes = 0; fcntl(serialfd, F_SETFL, FNDELAY); while(1) { bytesRead = read(serialfd, &buffer, MAXDATASIZE); if(bytesRead == -1) { //Sleep for some time and read again usleep(900000); } else { totalBytes += bytesRead; //Add data read to vector for(int i =0; i < bytesRead; i++) { m_vRequestBuf.push_back(buffer[i]); } int newBytesRead = 0; //Now keep trying to read more data while(newBytesRead != -1) { //clear contents of buffer memset((void*)&buffer, 0, sizeof(char) * MAXDATASIZE); newBytesRead = read(serialfd, &buffer, MAXDATASIZE); totalBytes += newBytesRead; for(int j = 0; j < newBytesRead; j++) { m_vRequestBuf.push_back(buffer[j]); } }//inner while break; } //while

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• Binary data from a serial port in linux using c

  - by user1680393

  I am reading binary data from a serial port on Phidget sbc using Linux to get a command from an application running on a PC. I wrote a test program in VB to read the data into a byte array and convert it to decimal to use it but can’t figure out how to do it in c. I am unable to come up with anything with the research I have done on the internet. Command sent from PC is 0x0F. To check if I am getting correct data I read the data and send it back. Here is what I get back. Returned data has a carriage return added to it. Hex Display 0F00 0000 0D ‘\’ Display \0F\00\00\00\r Normal display just display a strange character. This tells me that the data is there that I can use, but can’t figure out to extract the value 0F or 15. How can I convert the incoming data to use it? I tried converting the received data using strtol, but it returns 0. I also tried setting the port to raw but it did not make any difference. unsigned char buffer1[1]; int ReadPort1() { int result; result = read(file1, &buffer1,1); if(result > 0) { WritePort1(buffer1); sprintf(tempstr, "Port1 data %s %d", buffer1, result); DisplayText(2,tempstr); } return result; } Port Open/Setup void OpenPort1() { //file1 = open("/dev/ttyUSB1", O_RDWR | O_NOCTTY | O_NONBLOCK); file1 = open("/dev/ttyUSB1", O_RDWR | O_NOCTTY | O_NODELAY); if(file1 < 0) printf("Error opening serial port1.\n"); else { SetPort(file1, 115200, 8, 1, 0, 1); port1open = 1; } } void SetPort(int fd, int Baud_Rate, int Data_Bits, int Stop_Bits, int Parity, int raw) { long BAUD; // derived baud rate from command line long DATABITS; long STOPBITS; long PARITYON; long PARITY; struct termios newtio; switch (Baud_Rate) { case 115200: BAUD = B115200; break; case 38400: BAUD = B38400; break; case 19200: BAUD = B19200; break; case 9600: BAUD = B9600; break; } //end of switch baud_rate switch (Data_Bits) { case 8: default: DATABITS = CS8; break; case 7: DATABITS = CS7; break; case 6: DATABITS = CS6; break; case 5: DATABITS = CS5; break; } //end of switch data_bits switch (Stop_Bits) { case 1: default: STOPBITS = 0; break; case 2: STOPBITS = CSTOPB; break; } //end of switch stop bits switch (Parity) { case 0: default: //none PARITYON = 0; PARITY = 0; break; case 1: //odd PARITYON = PARENB; PARITY = PARODD; break; case 2: //even PARITYON = PARENB; PARITY = 0; break; } //end of switch parity newtio.c_cflag = BAUD | DATABITS | STOPBITS | PARITYON | PARITY | CLOCAL | CREAD; newtio.c_iflag = IGNPAR; if(raw == 1) { newtio.c_oflag &= ~OPOST; newtio.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG); } else { newtio.c_lflag = 0; //ICANON; newtio.c_oflag = 0; } newtio.c_cc[VMIN]=1; newtio.c_cc[VTIME]=0; tcflush(fd, TCIFLUSH); tcsetattr(fd,TCSANOW,&newtio); }

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