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  • How does the elliptic-curve version of Diffie-Hellman cryptography work?

    - by cmaduro
    Does the Elliptic curve diffie hellman calculation look any different from the standard one defined here: /* * The basic Diffie-Hellman Key Agreement Equation * * The client initiates * A = g^a mod p * * Sends (g p A) to the server * * The server calculates B * B = g^b mod p * * Sends B back to client * * The client calculates K * K = B^a mod p * * The server calucaltes K * K = A^b mod p * */ Or is it just a specific way of selecting g, a, p and b? How are g,a,p and b selected anyway?

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  • Need help fixing DPKG errors after update from 12.04 to 12.10

    - by James Wulfe
    So I was doing fine then i upgraded my system to 12.10 and now i cant get my system to update all of its packages properly. no matter what i do, what is happening here and how do i fix this. if i would have thought 12.10 would be this much of a hassle i would have never upgraded..... here is a sampling of the code that returns from "apt-get -f install" It should also be noted that it is just these 6 packages only. no other packages have given me this kind of trouble. well i should say as of now. It was just 5, but them i got an update for unity, and now unity-common is added to the trouble makers. which prevents me from further upgrading the actual unity package as this package is a dependancy. Preparing to replace usb-modeswitch-data 20120120-0ubuntu1 (using .../usb-modeswitch-data_20120815-1_all.deb) ... /var/lib/dpkg/info/usb-modeswitch-data.prerm: 4: /var/lib/dpkg/info/usb-modeswitch-data.prerm: dpkg-maintscript-helper: Input/output error dpkg: warning: subprocess old pre-removal script returned error exit status 2 dpkg: trying script from the new package instead ... /var/lib/dpkg/tmp.ci/prerm: 4: /var/lib/dpkg/tmp.ci/prerm: dpkg-maintscript-helper: Input/output error dpkg: error processing /var/cache/apt/archives/usb-modeswitch-data_20120815-1_all.deb (--unpack): subprocess new pre-removal script returned error exit status 2 /var/lib/dpkg/info/usb-modeswitch-data.postinst: 7: /var/lib/dpkg/info/usb-modeswitch-data.postinst: dpkg-maintscript-helper: Input/output error dpkg: error while cleaning up: subprocess installed post-installation script returned error exit status 2 Errors were encountered while processing: /var/cache/apt/archives/network-manager_0.9.6.0-0ubuntu7_i386.deb /var/cache/apt/archives/pcmciautils_018-8_i386.deb /var/cache/apt/archives/unity-common_6.10.0-0ubuntu2_all.deb /var/cache/apt/archives/whoopsie_0.2.7_i386.deb /var/cache/apt/archives/usb-modeswitch_1.2.3+repack0-1ubuntu3_i386.deb /var/cache/apt/archives/usb-modeswitch-data_20120815-1_all.deb E: Sub-process /usr/bin/dpkg returned an error code (1) I would also like to note i have cleaned apt cashe both through the terminal and manualy, i have tried installing them manually through dpkg from both the /var/cache/apt/archives/ location and from my own manually downloaded .deb files. i have tried using dpkg-reconfigure and i have used bleachbit to clean my system. I have also tested both my HDD and memory and found no significant errors to lead to the input/output errors. Quite frankly i am just out of options and have grown tired of trying to google a solution to this mess but still do not wish to pursue backing up settings and reinstalling the system. Any help would be appreciated. I am only interested in answers, please leave your feeling towards grammar, punctuation, and bias towards how a "post should look" at the door. If you dont have something to contribute towards solving my problem then you are just doing nothing but contributing to it. Thank you.

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  • Http header 302 error

    - by Katherine Katie
    Response Headers status HTTP/1.1 302 Found connection close pragma no-cache cache-control no-cache location / location /NKiXN/ I don't know how it became so but i used w3 total cache plugin but at this time i have deactivated it please help me to solve it, site is coming down in search engine ranking and google bot is unable to follow it. Urgent help required, if this is configuration problem with server please let me know the solution. Site: http://onlinecheapestcarinsurance.co.uk/

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  • Can I Hide a part of joomla link in source code? [migrated]

    - by pastor
    link rel="stylesheet" type="text/css" href="/nettt/plugins/system/jch_optimize/cache/jscss.php?f=019a87662ec9a3b8c890c566b8019f23-cache-plg_jch_optimize-652b9fac2d3cde50d0b5ec53b6e540d4&amp;type=css&amp;gz=gz&amp;d=30"/> I wont to hide /nettt/plugins/system/jch_optimize/cache/jscss.php?f=019a87662ec9a3b8c890c566b8019f23-cache-plg_jch_optimize-652b9fac2d3cde50d0b5ec53b6e540d4&amp any ideas?

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  • 500 Internal Server Error when setting up Apache on Ubuntu+Django

    - by ApacheQ
    I tried with Apache on ubuntu 9.04 and get the same error: Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, webmaster@localhost and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log. And my apache/error.log is: [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] ServerName: 'sapint2' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] DocumentRoot: '/etc/apache2/htdocs' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] URI: '/' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] Location: '/' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] Directory: None [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] Filename: '/etc/apache2/htdocs' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] PathInfo: '/' [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] Traceback (most recent call last): [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/lib/python2.7/dist-packages/mod_python/importer.py", line 1537, in HandlerDispatch\n default=default_handler, arg=req, silent=hlist.silent) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/lib/python2.7/dist-packages/mod_python/importer.py", line 1229, in _process_target\n result = _execute_target(config, req, object, arg) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/lib/python2.7/dist-packages/mod_python/importer.py", line 1128, in _execute_target\n result = object(arg) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/modpython.py", line 180, in handler\n return ModPythonHandler()(req) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/modpython.py", line 142, in call\n self.load_middleware() [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 45, in load_middleware\n mod = import_module(mw_module) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/utils/importlib.py", line 35, in import_module\n import(name) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/contrib/sessions/middleware.py", line 4, in \n from django.utils.cache import patch_vary_headers [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/utils/cache.py", line 25, in \n from django.core.cache import get_cache [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/cache/init.py", line 187, in \n cache = get_cache(DEFAULT_CACHE_ALIAS) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/cache/init.py", line 179, in get_cache\n cache = backend_cls(location, params) [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] File "/usr/local/lib/python2.7/dist-packages/django/core/cache/backends/memcached.py", line 139, in init\n "Memcached cache backend requires either the 'memcache' or 'cmemcache' library" [Sat Oct 06 09:32:04 2012] [error] [client 10.0.64.10] InvalidCacheBackendError: Memcached cache backend requires either the 'memcache' or 'cmemcache' library [Sat Oct 06 09:51:30 2012] [notice] caught SIGTERM, shutting down [Sat Oct 06 09:51:31 2012] [notice] mod_python: Creating 8 session mutexes based on 150 max processes and 0 max threads. [Sat Oct 06 09:51:31 2012] [notice] mod_python: using mutex_directory /tmp [Sat Oct 06 09:51:31 2012] [notice] Apache/2.2.17 (Ubuntu) PHP/5.3.5-1ubuntu7.11 with Suhosin-Patch mod_python/3.3.1 Python/2.7.1+ mod_wsgi/3.3 configured -- resuming normal operations I need some help Thanks

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  • Optimize php-fpm and varnish for a powerfull server

    - by Jim
    My setup is: Intel® Core™ i7-2600 and RAM 16 GB DDR3 RAM varnish+nginx+php-fpm+apc for a not very heavy WordPress blog with W3 Total Cache and CDN My problem is that after 55 hits per second according to blitz.io varnish starts giving out timeouts. CPU usage at this time is hardly 1%. Free memory at all time remains 10GB+. I tried benchmarking php-fpm directly with result of 150hits/s without any timeouts. But after that the CPU usage goes 100% and it stops responding. Can you help me optimize it to handle more? As i understand nginx has nothing to do over here so i dont put its config. php-fpm config listen = /tmp/php5-fpm.sock listen.allowed_clients = 127.0.0.1 user = nginx group = nginx pm = dynamic pm.max_children = 150 pm.start_servers = 7 pm.min_spare_servers = 2 pm.max_spare_servers = 15 pm.max_requests = 500 slowlog = /var/log/php-fpm/www-slow.log php_admin_value[error_log] = /var/log/php-fpm/www-error.log php_admin_flag[log_errors] = on apc extension = apc.so apc.enabled=1 apc.shm_size=512MB apc.num_files_hint=0 apc.user_entries_hint=0 apc.ttl=7200 apc.use_request_time=1 apc.user_ttl=7200 apc.gc_ttl=3600 apc.cache_by_default=1 apc.filters apc.mmap_file_mask=/tmp/apc.XXXXXX apc.file_update_protection=2 apc.enable_cli=0 apc.max_file_size=1M apc.stat=1 apc.stat_ctime=0 apc.canonicalize=0 apc.write_lock=1 apc.report_autofilter=0 apc.rfc1867=0 apc.rfc1867_prefix =upload_ apc.rfc1867_name=APC_UPLOAD_PROGRESS apc.rfc1867_freq=0 apc.rfc1867_ttl=3600 apc.include_once_override=0 apc.lazy_classes=0 apc.lazy_functions=0 apc.coredump_unmap=0 apc.file_md5=0 apc.preload_path Varnish VCL backend default { .host = "127.0.0.1"; .port = "8080"; .connect_timeout = 6s; .first_byte_timeout = 6s; .between_bytes_timeout = 60s; } acl purgehosts { "localhost"; "127.0.0.1"; } # Called after a document has been successfully retrieved from the backend. sub vcl_fetch { # Uncomment to make the default cache "time to live" is 5 minutes, handy # but it may cache stale pages unless purged. (TODO) # By default Varnish will use the headers sent to it by Apache (the backend server) # to figure out the correct TTL. # WP Super Cache sends a TTL of 3 seconds, set in wp-content/cache/.htaccess set beresp.ttl = 24h; # Strip cookies for static files and set a long cache expiry time. if (req.url ~ "\.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|pdf|txt|tar|wav|bmp|rtf|js|flv|swf|html|htm)$") { unset beresp.http.set-cookie; set beresp.ttl = 24h; } # If WordPress cookies found then page is not cacheable if (req.http.Cookie ~"(wp-postpass|wordpress_logged_in|comment_author_)") { # set beresp.cacheable = false;#versions less than 3 #beresp.ttl>0 is cacheable so 0 will not be cached set beresp.ttl = 0s; } else { #set beresp.cacheable = true; set beresp.ttl=24h;#cache for 24hrs } # Varnish determined the object was not cacheable #if ttl is not > 0 seconds then it is cachebale if (!beresp.ttl > 0s) { # set beresp.http.X-Cacheable = "NO:Not Cacheable"; } else if ( req.http.Cookie ~"(wp-postpass|wordpress_logged_in|comment_author_)" ) { # You don't wish to cache content for logged in users set beresp.http.X-Cacheable = "NO:Got Session"; return(hit_for_pass); #previously just pass but changed in v3+ } else if ( beresp.http.Cache-Control ~ "private") { # You are respecting the Cache-Control=private header from the backend set beresp.http.X-Cacheable = "NO:Cache-Control=private"; return(hit_for_pass); } else if ( beresp.ttl < 1s ) { # You are extending the lifetime of the object artificially set beresp.ttl = 300s; set beresp.grace = 300s; set beresp.http.X-Cacheable = "YES:Forced"; } else { # Varnish determined the object was cacheable set beresp.http.X-Cacheable = "YES"; if (beresp.status == 404 || beresp.status >= 500) { set beresp.ttl = 0s; } # Deliver the content return(deliver); } sub vcl_hash { # Each cached page has to be identified by a key that unlocks it. # Add the browser cookie only if a WordPress cookie found. if ( req.http.Cookie ~"(wp-postpass|wordpress_logged_in|comment_author_)" ) { #set req.hash += req.http.Cookie; hash_data(req.http.Cookie); } } # vcl_recv is called whenever a request is received sub vcl_recv { # remove ?ver=xxxxx strings from urls so css and js files are cached. # Watch out when upgrading WordPress, need to restart Varnish or flush cache. set req.url = regsub(req.url, "\?ver=.*$", ""); # Remove "replytocom" from requests to make caching better. set req.url = regsub(req.url, "\?replytocom=.*$", ""); remove req.http.X-Forwarded-For; set req.http.X-Forwarded-For = client.ip; # Exclude this site because it breaks if cached if ( req.http.host == "sr.ituts.gr" ) { return( pass ); } # Serve objects up to 2 minutes past their expiry if the backend is slow to respond. set req.grace = 120s; # Strip cookies for static files: if (req.url ~ "\.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|pdf|txt|tar|wav|bmp|rtf|js|flv|swf|html|htm)$") { unset req.http.Cookie; return(lookup); } # Remove has_js and Google Analytics __* cookies. set req.http.Cookie = regsuball(req.http.Cookie, "(^|;\s*)(__[a-z]+|has_js)=[^;]*", ""); # Remove a ";" prefix, if present. set req.http.Cookie = regsub(req.http.Cookie, "^;\s*", ""); # Remove empty cookies. if (req.http.Cookie ~ "^\s*$") { unset req.http.Cookie; } if (req.request == "PURGE") { if (!client.ip ~ purgehosts) { error 405 "Not allowed."; } #previous version ban() was purge() ban("req.url ~ " + req.url + " && req.http.host == " + req.http.host); error 200 "Purged."; } # Pass anything other than GET and HEAD directly. if (req.request != "GET" && req.request != "HEAD") { return( pass ); } /* We only deal with GET and HEAD by default */ # remove cookies for comments cookie to make caching better. set req.http.cookie = regsub(req.http.cookie, "1231111111111111122222222333333=[^;]+(; )?", ""); # never cache the admin pages, or the server-status page, or your feed? you may want to..i don't if (req.request == "GET" && (req.url ~ "(wp-admin|bb-admin|server-status|feed)")) { return(pipe); } # don't cache authenticated sessions if (req.http.Cookie && req.http.Cookie ~ "(wordpress_|PHPSESSID)") { return(lookup); } # don't cache ajax requests if(req.http.X-Requested-With == "XMLHttpRequest" || req.url ~ "nocache" || req.url ~ "(control.php|wp-comments-post.php|wp-login.php|bb-login.php|bb-reset-password.php|register.php)") { return (pass); } return( lookup ); } Varnish Daemon options DAEMON_OPTS="-a :80 \ -T 127.0.0.1:6082 \ -f /etc/varnish/ituts.vcl \ -u varnish -g varnish \ -S /etc/varnish/secret \ -p thread_pool_add_delay=2 \ -p thread_pools=8 \ -p thread_pool_min=100 \ -p thread_pool_max=1000 \ -p session_linger=50 \ -p session_max=150000 \ -p sess_workspace=262144 \ -s malloc,5G" Im not sure where to start, should i for start optimize php-fpm and then go to varnish or php-fpm is at its max right now so i should start looking for the problem in varnish?

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  • MegaCli newly created disk doesn't appear under /dev/sdX

    - by Henry-Nicolas Tourneur
    After having successfully added 2 new disks in a new RAID virtual drive (background initialization done), I would have exepected it to appear under /dev/sdh but it's not there (so, unusable). The system is running a CentOS 5.2 64 bits, HAL and udev daemons are running, not records of any sdh apparition under the messsage log file or in dmesg, only MegaCli do see that virtual drive. Any idea ? Some data: [root@server ~]# ./MegaCli -LDInfo -LALL -a0 Adapter 0 -- Virtual Drive Information: Virtual Disk: 0 (target id: 0) Name: RAID Level: Primary-1, Secondary-0, RAID Level Qualifier-0 Size:139392MB State: Optimal Stripe Size: 64kB Number Of Drives:2 Span Depth:1 Default Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU Current Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU Access Policy: Read/Write Disk Cache Policy: Disk's Default Virtual Disk: 1 (target id: 1) Name: RAID Level: Primary-1, Secondary-0, RAID Level Qualifier-0 Size:285568MB State: Optimal Stripe Size: 64kB Number Of Drives:2 Span Depth:1 Default Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU Current Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU Access Policy: Read/Write Disk Cache Policy: Disk's Default [root@server ~]# ls -l /dev/disk/by-id/scsi-360* lrwxrwxrwx 1 root root 9 Nov 17 2010 /dev/disk/by-id/scsi-36001ec90f82fe100108ca0a704098d09 -> ../../sda lrwxrwxrwx 1 root root 10 Nov 17 2010 /dev/disk/by-id/scsi-36001ec90f82fe100108ca0a704098d09-part1 -> ../../sda1 lrwxrwxrwx 1 root root 10 Nov 17 2010 /dev/disk/by-id/scsi-36001ec90f82fe100108ca0a704098d09-part2 -> ../../sda2 lrwxrwxrwx 1 root root 9 Nov 17 2010 /dev/disk/by-id/scsi-36090a028e0fe07e78f94940c0000a0ee -> ../../sdf lrwxrwxrwx 1 root root 10 Nov 17 2010 /dev/disk/by-id/scsi-36090a028e0fe07e78f94940c0000a0ee-part1 -> ../../sdf1 lrwxrwxrwx 1 root root 9 Nov 17 2010 /dev/disk/by-id/scsi-36090a028e0fe972a3f91240a0000005f -> ../../sdb lrwxrwxrwx 1 root root 10 Nov 17 2010 /dev/disk/by-id/scsi-36090a028e0fe972a3f91240a0000005f-part1 -> ../../sdb1 lrwxrwxrwx 1 root root 9 Nov 17 2010 /dev/disk/by-id/scsi-36090a028e0fea7e18f94640c000020ec -> ../../sde lrwxrwxrwx 1 root root 10 Nov 17 2010 /dev/disk/by-id/scsi-36090a028e0fea7e18f94640c000020ec-part1 -> ../../sde1 lrwxrwxrwx 1 root root 9 Nov 17 2010 /dev/disk/by-id/scsi-36090a028e0feb7da8f94340c0000203d -> ../../sdd lrwxrwxrwx 1 root root 10 Nov 17 2010 /dev/disk/by-id/scsi-36090a028e0feb7da8f94340c0000203d-part1 -> ../../sdd1 lrwxrwxrwx 1 root root 9 Nov 17 2010 /dev/disk/by-id/scsi-36090a028e0fed7d78f94040c000080b7 -> ../../sdc lrwxrwxrwx 1 root root 10 Nov 17 2010 /dev/disk/by-id/scsi-36090a028e0fed7d78f94040c000080b7-part1 -> ../../sdc1 lrwxrwxrwx 1 root root 9 Nov 17 2010 /dev/disk/by-id/scsi-36090a05830145e58e0b9c479000010a1 -> ../../sdg lrwxrwxrwx 1 root root 10 Nov 17 2010 /dev/disk/by-id/scsi-36090a05830145e58e0b9c479000010a1-part1 -> ../../sdg1

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  • Spring hibernate ehcache setup

    - by Johan Sjöberg
    I have some problems getting the hibernate second level cache to work for caching domain objects. According to the ehcache documentation it shouldn't be too complicated to add caching to my existing working application. I have the following setup (only relevant snippets are outlined): @Entity @Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE public void Entity { // ... } ehcache-entity.xml <cache name="com.company.Entity" eternal="false" maxElementsInMemory="10000" overflowToDisk="true" diskPersistent="false" timeToIdleSeconds="0" timeToLiveSeconds="300" memoryStoreEvictionPolicy="LRU" /> ApplicationContext.xml <bean class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"> <property name="dataSource" ref="ds" /> <property name="annotatedClasses"> <list> <value>com.company.Entity</value> </list> </property> <property name="hibernateProperties"> <props> <prop key="hibernate.generate_statistics">true</prop> <prop key="hibernate.cache.use_second_level_cache">true</prop> <prop key="net.sf.ehcache.configurationResourceName">/ehcache-entity.xml</prop> <prop key="hibernate.cache.region.factory_class">net.sf.ehcache.hibernate.SingletonEhCacheRegionFactory</prop> .... </property> </bean> Maven dependencies <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-annotations</artifactId> <version>3.4.0.GA</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-hibernate3</artifactId> <version>2.0.8</version> <exclusions> <exclusion> <artifactId>hibernate</artifactId> <groupId>org.hibernate</groupId> </exclusion> </exclusions> </dependency> <dependency> <groupId>net.sf.ehcache</groupId> <artifactId>ehcache-core</artifactId> <version>2.3.2</version> </dependency> A test class is used which enables cache statistics: Cache cache = cacheManager.getCache("com.company.Entity"); cache.setStatisticsAccuracy(Statistics.STATISTICS_ACCURACY_GUARANTEED); cache.setStatisticsEnabled(true); // store, read etc ... cache.getStatistics().getMemoryStoreObjectCount(); // returns 0 No operation seems to trigger any cache changes. What am I missing? Currently I'm using HibernateTemplate in the DAO, perhaps that has some impact. [EDIT] The only ehcache log output when set to DEBUG is: SettingsFactory: Cache region factory : net.sf.ehcache.hibernate.SingletonEhCacheRegionFactory

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  • Can't make AWUS036H work in Ubuntu 12.10

    - by sfrj
    I am using 64 bit Ubuntu 12.10. This is my kernel version: Linux 3.5.0-19-generic #30-Ubuntu SMP Tue Nov 13 17:48:01 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux My wireless card is an AWUSU36H The first thing I do to install the driver is copy the driver from the CD to the Downloads folder. cd /media/me/AWUS036H/Drivers/RTL8187L/Unix (Linux)/Linux driver for kernel 2.6.X$ cp rtl8187_linux_26.1025.0328.2007.tar.gz ~/Downloads/ Then I extract the tar tar xvfz rtl8187_linux_26.1025.0328.2007.tar.gz I navigate into the extracted folder, and I try to follow the instructions in the Readme.txt cd rtl8187_linux_26.1025.0328.2007 This are the contents of the folder: drv.tar.gz makedrv stack.tar.gz wlan0rmv ieee80211 ReadMe.txt wlan0dhcp wlan0up ifcfg-wlan0 rtl8187 wlan0down wpa_supplicant-0.4.9 This is what the Readme.txt says: Release Date: 2006-02-09, ver 1.2^M RTL8187 Linux driver version 1.2^M ^M --This driver supports RealTek RTL8187 Wireless LAN driver for ^M Fedora Core 2/3/4/5, Debian 3.1, Mandrake 10.2/Mandriva 2006, ^M SUSE 9.3/10.1/10.2, Gentoo 3.1, etc.^M - Support Client mode for either infrastructure or adhoc mode^M - Support WEP and WPAPSK connection^M ^M < Component >^M The driver is composed of several parts:^M 1. Module source code^M stack.tar.gz^M drv.tar.gz^M ^M 2. Script ot build the modules^M makedrv^M ^M 3. Script to load/unload modules^M wlan0up^M wlan0down ^M ^M 4. Script and configuration for DHCP^M "ReadMe.txt" [readonly] 140 lines, 4590 characters So what I do know is extract both of the compressed files: sudo tar xvfz drv.tar.gz sudo tar xvfz stack.tar.gz This 2 commands will add some data to the folders ieee80211 and rtl8187 At this point I get lost, and I don't know what to do. If I go in each of this 2 folders and I run the sudo make command then I get errors like this one: sudo makemake -C /lib/modules/3.5.0-19-generic/build M=/home/me/Downloads/rtl8187_linux_26.1025.0328.2007/rtl8187 modules make[1]: Entering directory `/usr/src/linux-headers-3.5.0-19-generic' CC [M] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/rtl8187/r8187_core.o In file included from /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/rtl8187/r8187_core.c:64:0: /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/rtl8187/r8187.h:29:26: fatal error: linux/config.h: No such file or directory compilation terminated. make[2]: *** [/home/me/Downloads/rtl8187_linux_26.1025.0328.2007/rtl8187/r8187_core.o] Error 1 make[1]: *** [_module_/home/me/Downloads/rtl8187_linux_26.1025.0328.2007/rtl8187] Error 2 make[1]: Leaving directory `/usr/src/linux-headers-3.5.0-19-generic' make: *** [modules] Error 2 If I try to run any of the script ./makedrv that the instructions describe, then I also get an error: ~/Downloads/rtl8187_linux_26.1025.0328.2007$ sudo ./makedrv [sudo] password for me: ieee80211/ ieee80211/license ieee80211/ieee80211_crypt.c ieee80211/ieee80211_tx.c ieee80211/ieee80211_softmac.c ieee80211/ieee80211_softmac_wx.c ieee80211/ieee80211_module.c ieee80211/ieee80211_crypt_ccmp.c ieee80211/ieee80211_rx.c ieee80211/tags ieee80211/ieee80211_crypt_tkip.c ieee80211/Makefile ieee80211/readme ieee80211/.tmp_versions/ ieee80211/.tmp_versions/ieee80211-rtl.mod ieee80211/.tmp_versions/ieee80211_crypt_wep-rtl.mod ieee80211/.tmp_versions/ieee80211_crypt_tkip-rtl.mod ieee80211/.tmp_versions/ieee80211_crypt-rtl.mod ieee80211/.tmp_versions/ieee80211_crypt_ccmp-rtl.mod ieee80211/ieee80211_crypt_wep.c ieee80211/ieee80211.h ieee80211/ieee80211_wx.c ieee80211/ieee80211_crypt.h rtl8187/ rtl8187/license rtl8187/r8180_rtl8225z2.c rtl8187/r8180_rtl8225.h rtl8187/r8187_led.c rtl8187/r8180_93cx6.h rtl8187/r8180_wx.h rtl8187/r8180_hw.h rtl8187/copying rtl8187/r8187_led.h rtl8187/r8180_pm.h rtl8187/tags rtl8187/r8187.h rtl8187/Makefile rtl8187/r8180_rtl8225.c rtl8187/readme rtl8187/install rtl8187/.tmp_versions/ rtl8187/.tmp_versions/r8187.mod rtl8187/changes rtl8187/r8180_wx.c rtl8187/r8180_pm.c rtl8187/r8187_core.c rtl8187/r8180_93cx6.c rtl8187/authors rtl8187/ieee80211.h rtl8187/ieee80211_crypt.h rm -f *.mod.c *.mod *.o .*.cmd *.ko *~ rm -rf /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/tmp make -C /lib/modules/3.5.0-19-generic/build M=/home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211 modules make[1]: Entering directory `/usr/src/linux-headers-3.5.0-19-generic' CC [M] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.o In file included from /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:17:0: /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211.h:1019:24: error: field ‘ps_task’ has incomplete type /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c: In function ‘ieee80211_softmac_scan_wq’: /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:421:2: warning: passing argument 2 of ‘queue_delayed_work’ from incompatible pointer type [enabled by default] In file included from include/linux/srcu.h:32:0, from include/linux/notifier.h:15, from /usr/src/linux-headers-3.5.0-19-generic/arch/x86/include/asm/uprobes.h:26, from include/linux/uprobes.h:35, from include/linux/mm_types.h:15, from include/linux/kmemcheck.h:4, from include/linux/skbuff.h:18, from include/linux/if_ether.h:134, from /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211.h:26, from /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:17: include/linux/workqueue.h:371:12: note: expected ‘struct delayed_work *’ but argument is of type ‘struct work_struct *’ /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c: In function ‘ieee80211_softmac_stop_scan’: /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:495:3: warning: passing argument 1 of ‘cancel_delayed_work’ from incompatible pointer type [enabled by default] In file included from include/linux/srcu.h:32:0, from include/linux/notifier.h:15, from /usr/src/linux-headers-3.5.0-19-generic/arch/x86/include/asm/uprobes.h:26, from include/linux/uprobes.h:35, from include/linux/mm_types.h:15, from include/linux/kmemcheck.h:4, from include/linux/skbuff.h:18, from include/linux/if_ether.h:134, from /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211.h:26, from /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:17: include/linux/workqueue.h:410:20: note: expected ‘struct delayed_work *’ but argument is of type ‘struct work_struct *’ /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c: In function ‘ieee80211_associate_abort’: /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:915:2: warning: passing argument 2 of ‘queue_delayed_work’ from incompatible pointer type [enabled by default] In file included from include/linux/srcu.h:32:0, from include/linux/notifier.h:15, from /usr/src/linux-headers-3.5.0-19-generic/arch/x86/include/asm/uprobes.h:26, from include/linux/uprobes.h:35, from include/linux/mm_types.h:15, from include/linux/kmemcheck.h:4, from include/linux/skbuff.h:18, from include/linux/if_ether.h:134, from /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211.h:26, from /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:17: include/linux/workqueue.h:371:12: note: expected ‘struct delayed_work *’ but argument is of type ‘struct work_struct *’ /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c: In function ‘ieee80211_rx_frame_softmac’: /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:1527:3: error: implicit declaration of function ‘tasklet_schedule’ [-Werror=implicit-function-declaration] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c: In function ‘ieee80211_stop_protocol_rtl’: /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2120:2: warning: passing argument 1 of ‘cancel_delayed_work’ from incompatible pointer type [enabled by default] In file included from include/linux/srcu.h:32:0, from include/linux/notifier.h:15, from /usr/src/linux-headers-3.5.0-19-generic/arch/x86/include/asm/uprobes.h:26, from include/linux/uprobes.h:35, from include/linux/mm_types.h:15, from include/linux/kmemcheck.h:4, from include/linux/skbuff.h:18, from include/linux/if_ether.h:134, from /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211.h:26, from /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:17: include/linux/workqueue.h:410:20: note: expected ‘struct delayed_work *’ but argument is of type ‘struct work_struct *’ /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c: In function ‘ieee80211_softmac_init’: /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2229:78: error: macro "INIT_WORK" passed 3 arguments, but takes just 2 /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2229:2: error: ‘INIT_WORK’ undeclared (first use in this function) /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2229:2: note: each undeclared identifier is reported only once for each function it appears in /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2230:88: error: macro "INIT_WORK" passed 3 arguments, but takes just 2 /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2231:94: error: macro "INIT_WORK" passed 3 arguments, but takes just 2 /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2232:96: error: macro "INIT_WORK" passed 3 arguments, but takes just 2 /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2233:82: error: macro "INIT_WORK" passed 3 arguments, but takes just 2 /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2234:82: error: macro "INIT_WORK" passed 3 arguments, but takes just 2 /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2244:2: error: implicit declaration of function ‘tasklet_init’ [-Werror=implicit-function-declaration] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c: In function ‘ieee80211_softmac_free’: /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2255:2: warning: passing argument 1 of ‘cancel_delayed_work’ from incompatible pointer type [enabled by default] In file included from include/linux/srcu.h:32:0, from include/linux/notifier.h:15, from /usr/src/linux-headers-3.5.0-19-generic/arch/x86/include/asm/uprobes.h:26, from include/linux/uprobes.h:35, from include/linux/mm_types.h:15, from include/linux/kmemcheck.h:4, from include/linux/skbuff.h:18, from include/linux/if_ether.h:134, from /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211.h:26, from /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:17: include/linux/workqueue.h:410:20: note: expected ‘struct delayed_work *’ but argument is of type ‘struct work_struct *’ /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c: In function ‘ieee80211_wpa_set_encryption’: /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2489:3: error: implicit declaration of function ‘request_module’ [-Werror=implicit-function-declaration] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2518:3: error: implicit declaration of function ‘try_module_get’ [-Werror=implicit-function-declaration] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c: At top level: /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2663:1: warning: data definition has no type or storage class [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2663:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL’ [-Wimplicit-int] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2663:1: warning: parameter names (without types) in function declaration [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2664:1: warning: data definition has no type or storage class [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2664:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL’ [-Wimplicit-int] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2664:1: warning: parameter names (without types) in function declaration [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2665:1: warning: data definition has no type or storage class [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2665:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL’ [-Wimplicit-int] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2665:1: warning: parameter names (without types) in function declaration [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2666:1: warning: data definition has no type or storage class [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2666:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL’ [-Wimplicit-int] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2666:1: warning: parameter names (without types) in function declaration [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2667:1: warning: data definition has no type or storage class [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2667:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL’ [-Wimplicit-int] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2667:1: warning: parameter names (without types) in function declaration [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2668:1: warning: data definition has no type or storage class [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2668:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL’ [-Wimplicit-int] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2668:1: warning: parameter names (without types) in function declaration [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2669:1: warning: data definition has no type or storage class [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2669:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL’ [-Wimplicit-int] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2669:1: warning: parameter names (without types) in function declaration [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2670:1: warning: data definition has no type or storage class [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2670:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL’ [-Wimplicit-int] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2670:1: warning: parameter names (without types) in function declaration [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2671:1: warning: data definition has no type or storage class [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2671:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL’ [-Wimplicit-int] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2671:1: warning: parameter names (without types) in function declaration [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2672:1: warning: data definition has no type or storage class [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2672:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL’ [-Wimplicit-int] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2672:1: warning: parameter names (without types) in function declaration [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2673:1: warning: data definition has no type or storage class [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2673:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL’ [-Wimplicit-int] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2673:1: warning: parameter names (without types) in function declaration [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2674:1: warning: data definition has no type or storage class [enabled by default] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2674:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL’ [-Wimplicit-int] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:2674:1: warning: parameter names (without types) in function declaration [enabled by default] In file included from /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.c:17:0: /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211.h:1212:37: warning: ‘netdev_priv’ is static but used in inline function ‘ieee80211_priv’ which is not static [enabled by default] cc1: some warnings being treated as errors make[2]: *** [/home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211/ieee80211_softmac.o] Error 1 make[1]: *** [_module_/home/me/Downloads/rtl8187_linux_26.1025.0328.2007/ieee80211] Error 2 make[1]: Leaving directory `/usr/src/linux-headers-3.5.0-19-generic' make: *** [modules] Error 2 rm -f *.mod.c *.mod *.o .*.cmd *.ko *~ rm -rf /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/rtl8187/tmp make -C /lib/modules/3.5.0-19-generic/build M=/home/me/Downloads/rtl8187_linux_26.1025.0328.2007/rtl8187 modules make[1]: Entering directory `/usr/src/linux-headers-3.5.0-19-generic' CC [M] /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/rtl8187/r8187_core.o In file included from /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/rtl8187/r8187_core.c:64:0: /home/me/Downloads/rtl8187_linux_26.1025.0328.2007/rtl8187/r8187.h:29:26: fatal error: linux/config.h: No such file or directory compilation terminated. make[2]: *** 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Update This is the output of the lsusb command lsusb Bus 003 Device 002: ID 147e:1000 Upek Biometric Touchchip/Touchstrip Fingerprint Sensor Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

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  • Introduction à CRaSH, un shell pour superviser une machine virtuelle Java, application à la visualisation d'un cache, par Damien Rieu

    Bonjour, Vous trouverez un article sur CRaSH à cette adresse : http://damienrieu.developpez.com/art...hcache_spring/ CRaSH permet de se connecter à une JVM en mode Shell puis d'exécuter des commandes directement sur cette JVM. Ainsi, nous allons accéder à un certain nombre de commandes prédéfinies (exemple la commande thread, jdbc, java?). Une des grandes forces de CRaSH est que l'on peut aussi définir ses propres commandes Shell par programmation (Syntaxe Java ou Groovy). Il est alors possible de réaliser des commandes spécifiques à nos besoins ! Dans cette article, nous allons présenter CRaSH grâce à un cas pratique. Pour cela, nous allons réaliser une comman...

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  • Should I cache the data or hit the database?

    - by JD01
    I have not worked with any caching mechanisms and was wondering what my options are in the .net world for the following scenario. We basically have a a REST Service where the user passes an ID of a Category (think folder) and this category may have lots of sub categories and each of the sub categories could have 1000 of media containers (think file reference objects) which contain information about a file that may be on a NAS or SAN server (files are videos in this case). The relationship between these categories is stored in a database together with some permission rules and meta data about the sub categories. So from a UI perspective we have a lazy loaded tree control which is driven by the user by clicking on each sub folder (think of Windows explorer). Once they come to a URL of the video file, they then can watch the video. The number of users could grow into the 1000s and the sub categories and videos could be in the 10000s as the system grows. The question is should we carry on the way it is currently working where each request hits the database or should we think about caching the data? We are on using IIS 6/7 and Asp.net.

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  • LLVM JIT segfaults. What am I doing wrong?

    - by bugspy.net
    It is probably something basic because I am just starting to learn LLVM.. The following creates a factorial function and tries to git and execute it (I know the generated func is correct because I was able to static compile and execute it). But I get segmentation fault upon execution of the function (in EE-runFunction(TheF, Args)) #include <iostream> #include "llvm/Module.h" #include "llvm/Function.h" #include "llvm/PassManager.h" #include "llvm/CallingConv.h" #include "llvm/Analysis/Verifier.h" #include "llvm/Assembly/PrintModulePass.h" #include "llvm/Support/IRBuilder.h" #include "llvm/Support/raw_ostream.h" #include "llvm/ExecutionEngine/JIT.h" #include "llvm/ExecutionEngine/GenericValue.h" using namespace llvm; Module* makeLLVMModule() { // Module Construction LLVMContext& ctx = getGlobalContext(); Module* mod = new Module("test", ctx); Constant* c = mod->getOrInsertFunction("fact64", /*ret type*/ IntegerType::get(ctx,64), IntegerType::get(ctx,64), /*varargs terminated with null*/ NULL); Function* fact64 = cast<Function>(c); fact64->setCallingConv(CallingConv::C); /* Arg names */ Function::arg_iterator args = fact64->arg_begin(); Value* x = args++; x->setName("x"); /* Body */ BasicBlock* block = BasicBlock::Create(ctx, "entry", fact64); BasicBlock* xLessThan2Block= BasicBlock::Create(ctx, "xlst2_block", fact64); BasicBlock* elseBlock = BasicBlock::Create(ctx, "else_block", fact64); IRBuilder<> builder(block); Value *One = ConstantInt::get(Type::getInt64Ty(ctx), 1); Value *Two = ConstantInt::get(Type::getInt64Ty(ctx), 2); Value* xLessThan2 = builder.CreateICmpULT(x, Two, "tmp"); //builder.CreateCondBr(xLessThan2, xLessThan2Block, cond_false_2); builder.CreateCondBr(xLessThan2, xLessThan2Block, elseBlock); /* Recursion */ builder.SetInsertPoint(elseBlock); Value* xMinus1 = builder.CreateSub(x, One, "tmp"); std::vector<Value*> args1; args1.push_back(xMinus1); Value* recur_1 = builder.CreateCall(fact64, args1.begin(), args1.end(), "tmp"); Value* retVal = builder.CreateBinOp(Instruction::Mul, x, recur_1, "tmp"); builder.CreateRet(retVal); /* x<2 */ builder.SetInsertPoint(xLessThan2Block); builder.CreateRet(One); return mod; } int main(int argc, char**argv) { long long x; if(argc > 1) x = atol(argv[1]); else x = 4; Module* Mod = makeLLVMModule(); verifyModule(*Mod, PrintMessageAction); PassManager PM; PM.add(createPrintModulePass(&outs())); PM.run(*Mod); // Now we going to create JIT ExecutionEngine *EE = EngineBuilder(Mod).create(); // Call the function with argument x: std::vector<GenericValue> Args(1); Args[0].IntVal = APInt(64, x); Function* TheF = cast<Function>(Mod->getFunction("fact64")) ; /* The following CRASHES.. */ GenericValue GV = EE->runFunction(TheF, Args); outs() << "Result: " << GV.IntVal << "\n"; delete Mod; return 0; }

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  • Is it possible to shrink the size of an HP Smart Array logical drive?

    - by ewwhite
    I know extension is quite possible using the hpacucli utility, but is there an easy way to reduce the size of an existing logical drive (not array)? The controller is a P410i in a ProLiant DL360 G6 server. I'd like to reduce logicaldrive 1 from 72GB to 40GB. => ctrl all show config detail Smart Array P410i in Slot 0 (Embedded) Bus Interface: PCI Slot: 0 Serial Number: 5001438006FD9A50 Cache Serial Number: PAAVP9VYFB8Y RAID 6 (ADG) Status: Disabled Controller Status: OK Chassis Slot: Hardware Revision: Rev C Firmware Version: 3.66 Rebuild Priority: Medium Expand Priority: Medium Surface Scan Delay: 3 secs Surface Scan Mode: Idle Queue Depth: Automatic Monitor and Performance Delay: 60 min Elevator Sort: Enabled Degraded Performance Optimization: Disabled Inconsistency Repair Policy: Disabled Wait for Cache Room: Disabled Surface Analysis Inconsistency Notification: Disabled Post Prompt Timeout: 15 secs Cache Board Present: True Cache Status: OK Accelerator Ratio: 25% Read / 75% Write Drive Write Cache: Enabled Total Cache Size: 512 MB No-Battery Write Cache: Disabled Cache Backup Power Source: Batteries Battery/Capacitor Count: 1 Battery/Capacitor Status: OK SATA NCQ Supported: True Array: A Interface Type: SAS Unused Space: 412476 MB Status: OK Logical Drive: 1 Size: 72.0 GB Fault Tolerance: RAID 1+0 Heads: 255 Sectors Per Track: 32 Cylinders: 18504 Strip Size: 256 KB Status: OK Array Accelerator: Enabled Unique Identifier: 600508B1001C132E4BBDFAA6DAD13DA3 Disk Name: /dev/cciss/c0d0 Mount Points: /boot 196 MB, / 12.0 GB, /usr 8.0 GB, /var 4.0 GB, /tmp 2.0 GB OS Status: LOCKED Logical Drive Label: AE438D6A5001438006FD9A50BE0A Mirror Group 0: physicaldrive 1I:1:1 (port 1I:box 1:bay 1, SAS, 146 GB, OK) physicaldrive 1I:1:2 (port 1I:box 1:bay 2, SAS, 146 GB, OK) Mirror Group 1: physicaldrive 1I:1:3 (port 1I:box 1:bay 3, SAS, 146 GB, OK) physicaldrive 1I:1:4 (port 1I:box 1:bay 4, SAS, 146 GB, OK) SEP (Vendor ID PMCSIERA, Model SRC 8x6G) 250 Device Number: 250 Firmware Version: RevC WWID: 5001438006FD9A5F Vendor ID: PMCSIERA Model: SRC 8x6G

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  • Setting Up Apache as a Forward Proxy with Cahcing

    - by Karl
    I am trying to set up Apache as a forward proxy with caching, but it does not seem to be working correctly. Getting Apache working as a forward proxy was no problem, but no matter what I do it is not caching anything, to disk or memory. I already checked to make sure nothing is conflicting in the mods_enabled directory with mod_cache (ended up commenting it all out) and also I tried moving all of the caching related fields to the configuration file for mod_cache. In addition I set up logging for caching requests, but nothing is being written to those logs. Below is my Apache config, any help would be greatly appreciated!! <VIRTUALHOST *:8080> ProxyRequests On ProxyVia On #ErrorLog "/var/log/apache2/proxy-error.log" #CustomLog "/var/log/apache2/proxy-access.log" common CustomLog "/var/log/apache2/cached-requests.log" common env=cache-hit CustomLog "/var/log/apache2/uncached-requests.log" common env=cache-miss CustomLog "/var/log/apache2/revalidated-requests.log" common env=cache-revalidate CustomLog "/var/log/apache2/invalidated-requests.log" common env=cache-invalidate LogFormat "%{cache-status}e ..." # This path must be the same as the one in /etc/default/apache2 CacheRoot /var/cache/apache2/mod_disk_cache # This will also cache local documents. It usually makes more sense to # put this into the configuration for just one virtual host. CacheEnable disk / #CacheHeader on CacheDirLevels 3 CacheDirLength 5 ##<IfModule mod_mem_cache.c> # CacheEnable mem / # MCacheSize 4096 # MCacheMaxObjectCount 100 # MCacheMinObjectSize 1 # MCacheMaxObjectSize 2048 #</IfModule> <Proxy *> Order deny,allow Deny from all Allow from x.x.x.x #IP above hidden for this post <filesMatch "\.(xml|txt|html|js|css)$"> ExpiresDefault A7200 Header append Cache-Control "proxy-revalidate" </filesMatch> </Proxy> </VIRTUALHOST> Thank you once again!

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  • Tomcat6 getting crashed at regular intervals installed in Ubuntu

    - by Milesh Rout
    I have installed Tomcat6 in Ubuntu OS and when I run my web application the server gets crashed at regular intervals. I have tried a lot but not getting the solution. I have increased the memory upto 2048mb but still getting such error. Following is the error I am getting. Any help would be really appreciated. org.apache.tomcat.util.http.Parameters processParametersINFO: Invalid chunk starting at byte [312] and ending at byte [312] with a value of [null] ignoredException in thread "Timer-1" Exception in thread "com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0" Exception in thread "com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2" Exception in thread "com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1" Exception in thread "Timer-2" Exception in thread "http-8080-4" Exception in thread "http-8080-8" Exception in thread "http-8080-17" Exception in thread "org.hibernate.cache.StandardQueryCache.data" Exception in thread "org.hibernate.cache.UpdateTimestampsCache.data" Exception in thread "org.hibernate.cache.StandardQueryCache.data" Exception in thread "org.hibernate.cache.StandardQueryCache.data" Exception in thread "org.hibernate.cache.UpdateTimestampsCache.data" Exception in thread "org.hibernate.cache.StandardQueryCache.data" Exception in thread "org.hibernate.cache.StandardQueryCache.data" Exception in thread "org.hibernate.cache.UpdateTimestampsCache.data" Exception in thread "com.safenet.usermgmt.User.data" Exception in thread "http-8080-7" Exception in thread "http-8080-12" Exception in thread "http-8080-16" Exception in thread "http-8080-14" Exception in thread "http-8080-13" Exception in thread "http-8080-15" Exception in thread "http-8080-6" OpenJDK Client VM warning: Exception java.lang.OutOfMemoryError occurred dispatching signal SIGTERM to handler- the VM may need to be forcibly terminated

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  • Squid3 not caching simple request and response

    - by Nick Spacek
    Hi folks, I've pared down my squid.conf to try to figure this out: http_port 80 accel defaultsite=host.to.cache cache_peer ip.to.cache parent 80 0 no-query originserver acl our_sites dstdomain host.to.cache http_access allow our_sites refresh_pattern . 1 20% 4320 Requests are being proxied correctly, so that's a start. Here's a request: GET http://host.to.cache/path?some_param=true Accept: */* Accept-Charset: ISO-8859-1,utf-8 Accept-Encoding: gzip,deflate,sdch Accept-Language: en-US,en Connection: keep-alive Host: host.to.cache User-Agent: myuseragent And the response: Connection: keep-alive Content-Length: 585 Content-Type: application/xml Date: Thu, 06 Jan 2011 18:33:11 GMT Via: 1.0 localhost (squid/3.0.STABLE19) X-Cache: MISS from localhost X-Cache-Lookup: MISS from localhost:80 The response has no caching-related headers, but I thought that refresh_pattern would set a default behavior for responses without caching-related headers. For my test, I wanted to cache everything for one minute at minimum. Am I missing something obvious? I did take a peek at this question: Squid isn't caching ...and ran through the page here: http://www.mnot.net/cache_docs/ briefly, but didn't see anything relevant (not to say that there isn't, I could have missed something). Thanks for any help.

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  • Where can these be posted besides the Python Cookbook?

    - by Noctis Skytower
    Whitespace Assembler #! /usr/bin/env python """Assembler.py Compiles a program from "Assembly" folder into "Program" folder. Can be executed directly by double-click or on the command line. Give name of *.WSA file without extension (example: stack_calc).""" ################################################################################ __author__ = 'Stephen "Zero" Chappell <[email protected]>' __date__ = '14 March 2010' __version__ = '$Revision: 3 $' ################################################################################ import string from Interpreter import INS, MNEMONIC ################################################################################ def parse(code): program = [] process_virtual(program, code) process_control(program) return tuple(program) def process_virtual(program, code): for line, text in enumerate(code.split('\n')): if not text or text[0] == '#': continue if text.startswith('part '): parse_part(program, line, text[5:]) elif text.startswith(' '): parse_code(program, line, text[5:]) else: syntax_error(line) def syntax_error(line): raise SyntaxError('Line ' + str(line + 1)) ################################################################################ def process_control(program): parts = get_parts(program) names = dict(pair for pair in zip(parts, generate_index())) correct_control(program, names) def get_parts(program): parts = [] for ins in program: if isinstance(ins, tuple): ins, arg = ins if ins == INS.PART: if arg in parts: raise NameError('Part definition was found twice: ' + arg) parts.append(arg) return parts def generate_index(): index = 1 while True: yield index index *= -1 if index > 0: index += 1 def correct_control(program, names): for index, ins in enumerate(program): if isinstance(ins, tuple): ins, arg = ins if ins in HAS_LABEL: if arg not in names: raise NameError('Part definition was never found: ' + arg) program[index] = (ins, names[arg]) ################################################################################ def parse_part(program, line, text): if not valid_label(text): syntax_error(line) program.append((INS.PART, text)) def valid_label(text): if not between_quotes(text): return False label = text[1:-1] if not valid_name(label): return False return True def between_quotes(text): if len(text) < 3: return False if text.count('"') != 2: return False if text[0] != '"' or text[-1] != '"': return False return True def valid_name(label): valid_characters = string.ascii_letters + string.digits + '_' valid_set = frozenset(valid_characters) label_set = frozenset(label) if len(label_set - valid_set) != 0: return False return True ################################################################################ from Interpreter import HAS_LABEL, Program NO_ARGS = Program.NO_ARGS HAS_ARG = Program.HAS_ARG TWO_WAY = tuple(set(NO_ARGS) & set(HAS_ARG)) ################################################################################ def parse_code(program, line, text): for ins, word in enumerate(MNEMONIC): if text.startswith(word): check_code(program, line, text[len(word):], ins) break else: syntax_error(line) def check_code(program, line, text, ins): if ins in TWO_WAY: if text: number = parse_number(line, text) program.append((ins, number)) else: program.append(ins) elif ins in HAS_LABEL: text = parse_label(line, text) program.append((ins, text)) elif ins in HAS_ARG: number = parse_number(line, text) program.append((ins, number)) elif ins in NO_ARGS: if text: syntax_error(line) program.append(ins) else: syntax_error(line) def parse_label(line, text): if not text or text[0] != ' ': syntax_error(line) text = text[1:] if not valid_label(text): syntax_error(line) return text ################################################################################ def parse_number(line, text): if not valid_number(text): syntax_error(line) return int(text) def valid_number(text): if len(text) < 2: return False if text[0] != ' ': return False text = text[1:] if '+' in text and '-' in text: return False if '+' in text: if text.count('+') != 1: return False if text[0] != '+': return False text = text[1:] if not text: return False if '-' in text: if text.count('-') != 1: return False if text[0] != '-': return False text = text[1:] if not text: return False valid_set = frozenset(string.digits) value_set = frozenset(text) if len(value_set - valid_set) != 0: return False return True ################################################################################ ################################################################################ from Interpreter import partition_number VMC_2_TRI = { (INS.PUSH, True): (0, 0), (INS.COPY, False): (0, 2, 0), (INS.COPY, True): (0, 1, 0), (INS.SWAP, False): (0, 2, 1), (INS.AWAY, False): (0, 2, 2), (INS.AWAY, True): (0, 1, 2), (INS.ADD, False): (1, 0, 0, 0), (INS.SUB, False): (1, 0, 0, 1), (INS.MUL, False): (1, 0, 0, 2), (INS.DIV, False): (1, 0, 1, 0), (INS.MOD, False): (1, 0, 1, 1), (INS.SET, False): (1, 1, 0), (INS.GET, False): (1, 1, 1), (INS.PART, True): (2, 0, 0), (INS.CALL, True): (2, 0, 1), (INS.GOTO, True): (2, 0, 2), (INS.ZERO, True): (2, 1, 0), (INS.LESS, True): (2, 1, 1), (INS.BACK, False): (2, 1, 2), (INS.EXIT, False): (2, 2, 2), (INS.OCHR, False): (1, 2, 0, 0), (INS.OINT, False): (1, 2, 0, 1), (INS.ICHR, False): (1, 2, 1, 0), (INS.IINT, False): (1, 2, 1, 1) } ################################################################################ def to_trinary(program): trinary_code = [] for ins in program: if isinstance(ins, tuple): ins, arg = ins trinary_code.extend(VMC_2_TRI[(ins, True)]) trinary_code.extend(from_number(arg)) else: trinary_code.extend(VMC_2_TRI[(ins, False)]) return tuple(trinary_code) def from_number(arg): code = [int(arg < 0)] if arg: for bit in reversed(list(partition_number(abs(arg), 2))): code.append(bit) return code + [2] return code + [0, 2] to_ws = lambda trinary: ''.join(' \t\n'[index] for index in trinary) def compile_wsa(source): program = parse(source) trinary = to_trinary(program) ws_code = to_ws(trinary) return ws_code ################################################################################ ################################################################################ import os import sys import time import traceback def main(): name, source, command_line, error = get_source() if not error: start = time.clock() try: ws_code = compile_wsa(source) except: print('ERROR: File could not be compiled.\n') traceback.print_exc() error = True else: path = os.path.join('Programs', name + '.ws') try: open(path, 'w').write(ws_code) except IOError as err: print(err) error = True else: div, mod = divmod((time.clock() - start) * 1000, 1) args = int(div), '{:.3}'.format(mod)[1:] print('DONE: Comipled in {}{} ms'.format(*args)) handle_close(error, command_line) def get_source(): if len(sys.argv) > 1: command_line = True name = sys.argv[1] else: command_line = False try: name = input('Source File: ') except: return None, None, False, True print() path = os.path.join('Assembly', name + '.wsa') try: return name, open(path).read(), command_line, False except IOError as err: print(err) return None, None, command_line, True def handle_close(error, command_line): if error: usage = 'Usage: {} <assembly>'.format(os.path.basename(sys.argv[0])) print('\n{}\n{}'.format('-' * len(usage), usage)) if not command_line: time.sleep(10) ################################################################################ if __name__ == '__main__': main() Whitespace Helpers #! /usr/bin/env python """Helpers.py Includes a function to encode Python strings into my WSA format. Has a "PRINT_LINE" function that can be copied to a WSA program. Contains a "PRINT" function and documentation as an explanation.""" ################################################################################ __author__ = 'Stephen "Zero" Chappell <[email protected]>' __date__ = '14 March 2010' __version__ = '$Revision: 1 $' ################################################################################ def encode_string(string, addr): print(' push', addr) print(' push', len(string)) print(' set') addr += 1 for offset, character in enumerate(string): print(' push', addr + offset) print(' push', ord(character)) print(' set') ################################################################################ # Prints a string with newline. # push addr # call "PRINT_LINE" """ part "PRINT_LINE" call "PRINT" push 10 ochr back """ ################################################################################ # def print(array): # if len(array) <= 0: # return # offset = 1 # while len(array) - offset >= 0: # ptr = array.ptr + offset # putch(array[ptr]) # offset += 1 """ part "PRINT" # Line 1-2 copy get less "__PRINT_RET_1" copy get zero "__PRINT_RET_1" # Line 3 push 1 # Line 4 part "__PRINT_LOOP" copy copy 2 get swap sub less "__PRINT_RET_2" # Line 5 copy 1 copy 1 add # Line 6 get ochr # Line 7 push 1 add goto "__PRINT_LOOP" part "__PRINT_RET_2" away part "__PRINT_RET_1" away back """ Whitespace Interpreter #! /usr/bin/env python """Interpreter.py Runs programs in "Programs" and creates *.WSO files when needed. Can be executed directly by double-click or on the command line. If run on command line, add "ASM" flag to dump program assembly.""" ################################################################################ __author__ = 'Stephen "Zero" Chappell <[email protected]>' __date__ = '14 March 2010' __version__ = '$Revision: 4 $' ################################################################################ def test_file(path): disassemble(parse(trinary(load(path))), True) ################################################################################ load = lambda ws: ''.join(c for r in open(ws) for c in r if c in ' \t\n') trinary = lambda ws: tuple(' \t\n'.index(c) for c in ws) ################################################################################ def enum(names): names = names.replace(',', ' ').split() space = dict((reversed(pair) for pair in enumerate(names)), __slots__=()) return type('enum', (object,), space)() INS = enum('''\ PUSH, COPY, SWAP, AWAY, \ ADD, SUB, MUL, DIV, MOD, \ SET, GET, \ PART, CALL, GOTO, ZERO, LESS, BACK, EXIT, \ OCHR, OINT, ICHR, IINT''') ################################################################################ def parse(code): ins = iter(code).__next__ program = [] while True: try: imp = ins() except StopIteration: return tuple(program) if imp == 0: # [Space] parse_stack(ins, program) elif imp == 1: # [Tab] imp = ins() if imp == 0: # [Tab][Space] parse_math(ins, program) elif imp == 1: # [Tab][Tab] parse_heap(ins, program) else: # [Tab][Line] parse_io(ins, program) else: # [Line] parse_flow(ins, program) def parse_number(ins): sign = ins() if sign == 2: raise StopIteration() buffer = '' code = ins() if code == 2: raise StopIteration() while code != 2: buffer += str(code) code = ins() if sign == 1: return int(buffer, 2) * -1 return int(buffer, 2) ################################################################################ def parse_stack(ins, program): code = ins() if code == 0: # [Space] number = parse_number(ins) program.append((INS.PUSH, number)) elif code == 1: # [Tab] code = ins() number = parse_number(ins) if code == 0: # [Tab][Space] program.append((INS.COPY, number)) elif code == 1: # [Tab][Tab] raise StopIteration() else: # [Tab][Line] program.append((INS.AWAY, number)) else: # [Line] code = ins() if code == 0: # [Line][Space] program.append(INS.COPY) elif code == 1: # [Line][Tab] program.append(INS.SWAP) else: # [Line][Line] program.append(INS.AWAY) def parse_math(ins, program): code = ins() if code == 0: # [Space] code = ins() if code == 0: # [Space][Space] program.append(INS.ADD) elif code == 1: # [Space][Tab] program.append(INS.SUB) else: # [Space][Line] program.append(INS.MUL) elif code == 1: # [Tab] code = ins() if code == 0: # [Tab][Space] program.append(INS.DIV) elif code == 1: # [Tab][Tab] program.append(INS.MOD) else: # [Tab][Line] raise StopIteration() else: # [Line] raise StopIteration() def parse_heap(ins, program): code = ins() if code == 0: # [Space] program.append(INS.SET) elif code == 1: # [Tab] program.append(INS.GET) else: # [Line] raise StopIteration() def parse_io(ins, program): code = ins() if code == 0: # [Space] code = ins() if code == 0: # [Space][Space] program.append(INS.OCHR) elif code == 1: # [Space][Tab] program.append(INS.OINT) else: # [Space][Line] raise StopIteration() elif code == 1: # [Tab] code = ins() if code == 0: # [Tab][Space] program.append(INS.ICHR) elif code == 1: # [Tab][Tab] program.append(INS.IINT) else: # [Tab][Line] raise StopIteration() else: # [Line] raise StopIteration() def parse_flow(ins, program): code = ins() if code == 0: # [Space] code = ins() label = parse_number(ins) if code == 0: # [Space][Space] program.append((INS.PART, label)) elif code == 1: # [Space][Tab] program.append((INS.CALL, label)) else: # [Space][Line] program.append((INS.GOTO, label)) elif code == 1: # [Tab] code = ins() if code == 0: # [Tab][Space] label = parse_number(ins) program.append((INS.ZERO, label)) elif code == 1: # [Tab][Tab] label = parse_number(ins) program.append((INS.LESS, label)) else: # [Tab][Line] program.append(INS.BACK) else: # [Line] code = ins() if code == 2: # [Line][Line] program.append(INS.EXIT) else: # [Line][Space] or [Line][Tab] raise StopIteration() ################################################################################ MNEMONIC = '\ push copy swap away add sub mul div mod set get part \ call goto zero less back exit ochr oint ichr iint'.split() HAS_ARG = [getattr(INS, name) for name in 'PUSH COPY AWAY PART CALL GOTO ZERO LESS'.split()] HAS_LABEL = [getattr(INS, name) for name in 'PART CALL GOTO ZERO LESS'.split()] def disassemble(program, names=False): if names: names = create_names(program) for ins in program: if isinstance(ins, tuple): ins, arg = ins assert ins in HAS_ARG has_arg = True else: assert INS.PUSH <= ins <= INS.IINT has_arg = False if ins == INS.PART: if names: print(MNEMONIC[ins], '"' + names[arg] + '"') else: print(MNEMONIC[ins], arg) elif has_arg and ins in HAS_ARG: if ins in HAS_LABEL and names: assert arg in names print(' ' + MNEMONIC[ins], '"' + names[arg] + '"') else: print(' ' + MNEMONIC[ins], arg) else: print(' ' + MNEMONIC[ins]) ################################################################################ def create_names(program): names = {} number = 1 for ins in program: if isinstance(ins, tuple) and ins[0] == INS.PART: label = ins[1] assert label not in names names[label] = number_to_name(number) number += 1 return names def number_to_name(number): name = '' for offset in reversed(list(partition_number(number, 27))): if offset: name += chr(ord('A') + offset - 1) else: name += '_' return name def partition_number(number, base): div, mod = divmod(number, base) yield mod while div: div, mod = divmod(div, base) yield mod ################################################################################ CODE = (' \t\n', ' \n ', ' \t \t\n', ' \n\t', ' \n\n', ' \t\n \t\n', '\t ', '\t \t', '\t \n', '\t \t ', '\t \t\t', '\t\t ', '\t\t\t', '\n \t\n', '\n \t \t\n', '\n \n \t\n', '\n\t \t\n', '\n\t\t \t\n', '\n\t\n', '\n\n\n', '\t\n ', '\t\n \t', '\t\n\t ', '\t\n\t\t') EXAMPLE = ''.join(CODE) ################################################################################ NOTES = '''\ STACK ===== push number copy copy number swap away away number MATH ==== add sub mul div mod HEAP ==== set get FLOW ==== part label call label goto label zero label less label back exit I/O === ochr oint ichr iint''' ################################################################################ ################################################################################ class Stack: def __init__(self): self.__data = [] # Stack Operators def push(self, number): self.__data.append(number) def copy(self, number=None): if number is None: self.__data.append(self.__data[-1]) else: size = len(self.__data) index = size - number - 1 assert 0 <= index < size self.__data.append(self.__data[index]) def swap(self): self.__data[-2], self.__data[-1] = self.__data[-1], self.__data[-2] def away(self, number=None): if number is None: self.__data.pop() else: size = len(self.__data) index = size - number - 1 assert 0 <= index < size del self.__data[index:-1] # Math Operators def add(self): suffix = self.__data.pop() prefix = self.__data.pop() self.__data.append(prefix + suffix) def sub(self): suffix = self.__data.pop() prefix = self.__data.pop() self.__data.append(prefix - suffix) def mul(self): suffix = self.__data.pop() prefix = self.__data.pop() self.__data.append(prefix * suffix) def div(self): suffix = self.__data.pop() prefix = self.__data.pop() self.__data.append(prefix // suffix) def mod(self): suffix = self.__data.pop() prefix = self.__data.pop() self.__data.append(prefix % suffix) # Program Operator def pop(self): return self.__data.pop() ################################################################################ class Heap: def __init__(self): self.__data = {} def set_(self, addr, item): if item: self.__data[addr] = item elif addr in self.__data: del self.__data[addr] def get_(self, addr): return self.__data.get(addr, 0) ################################################################################ import os import zlib import msvcrt import pickle import string class CleanExit(Exception): pass NOP = lambda arg: None DEBUG_WHITESPACE = False ################################################################################ class Program: NO_ARGS = INS.COPY, INS.SWAP, INS.AWAY, INS.ADD, \ INS.SUB, INS.MUL, INS.DIV, INS.MOD, \ INS.SET, INS.GET, INS.BACK, INS.EXIT, \ INS.OCHR, INS.OINT, INS.ICHR, INS.IINT HAS_ARG = INS.PUSH, INS.COPY, INS.AWAY, INS.PART, \ INS.CALL, INS.GOTO, INS.ZERO, INS.LESS def __init__(self, code): self.__data = code self.__validate() self.__build_jump() self.__check_jump() self.__setup_exec() def __setup_exec(self): self.__iptr = 0 self.__stck = stack = Stack() self.__heap = Heap() self.__cast = [] self.__meth = (stack.push, stack.copy, stack.swap, stack.away, stack.add, stack.sub, stack.mul, stack.div, stack.mod, self.__set, self.__get, NOP, self.__call, self.__goto, self.__zero, self.__less, self.__back, self.__exit, self.__ochr, self.__oint, self.__ichr, self.__iint) def step(self): ins = self.__data[self.__iptr] self.__iptr += 1 if isinstance(ins, tuple): self.__meth[ins[0]](ins[1]) else: self.__meth[ins]() def run(self): while True: ins = self.__data[self.__iptr] self.__iptr += 1 if isinstance(ins, tuple): self.__meth[ins[0]](ins[1]) else: self.__meth[ins]() def __oint(self): for digit in str(self.__stck.pop()): msvcrt.putwch(digit) def __ichr(self): addr = self.__stck.pop() # Input Routine while msvcrt.kbhit(): msvcrt.getwch() while True: char = msvcrt.getwch() if char in '\x00\xE0': msvcrt.getwch() elif char in string.printable: char = char.replace('\r', '\n') msvcrt.putwch(char) break item = ord(char) # Storing Number self.__heap.set_(addr, item) def __iint(self): addr = self.__stck.pop() # Input Routine while msvcrt.kbhit(): msvcrt.getwch() buff = '' char = msvcrt.getwch() while char != '\r' or not buff: if char in '\x00\xE0': msvcrt.getwch() elif char in '+-' and not buff: msvcrt.putwch(char) buff += char elif '0' <= char <= '9': msvcrt.putwch(char) buff += char elif char == '\b': if buff: buff = buff[:-1] msvcrt.putwch(char) msvcrt.putwch(' ') msvcrt.putwch(char) char = msvcrt.getwch() msvcrt.putwch(char) msvcrt.putwch('\n') item = int(buff) # Storing Number self.__heap.set_(addr, item) def __goto(self, label): self.__iptr = self.__jump[label] def __zero(self, label): if self.__stck.pop() == 0: self.__iptr = self.__jump[label] def __less(self, label): if self.__stck.pop() < 0: self.__iptr = self.__jump[label] def __exit(self): self.__setup_exec() raise CleanExit() def __set(self): item = self.__stck.pop() addr = self.__stck.po

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