Apache Portable Runtime Semaphore
WxWidgets is an object-oriented cross-platform GUI library that also provides abstraction classes for database communication, IPC and networking functionality. Then, two threads are competitors on acquiring mutex2. NoteThis function is generally used to kill a cleanup on an already created mutex apr_status_t apr_proc_mutex_create ( apr_proc_mutex_t ** mutex, const char * fname, apr_lockmech_e mech, apr_pool_t * pool ) Create Enumeration Type Documentation enum apr_lockmech_e Enumerated potential types for APR process locking methods WarningCheck APR_HAS_foo_SERIALIZE defines to see if the platform supports APR_LOCK_foo. weblink
The winner thread calls apr_thread_mutex_unlock() later. Please try the request again. As stated above, mulitiple threads run in the same memory address space. Only APR_LOCK_DEFAULT is portable.
Similarly, it goes like this. If the mutex is already locked, the current thread will be put to sleep until the lock becomes available. If the mutex has already 00108 * been acquired, the call returns immediately with APR_EBUSY. Doing Math Research in a "non-mathematical" environment Do I need a hard shell to ski in sunny weather conditions?
apr_status_t apr_proc_mutex_unlock ( apr_proc_mutex_t * mutex) Release the lock for the given mutex. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed sockets pipes mailboxes fifos shared memory threads mutexes semaphores time ini files Up to now I tried to wrap this functionality in a own library. http://dev.ariel-networks.com/apr/apr-tutorial/html/apr-tutorial-17.html Parameters mutexthe mutex to get the mechanism's name from.
Just a quick question because I want to confirm something. another common case is to design a specific build system, which is capable of handling all systems and compilers. That license statement is obsolete. This code is used by the vendor to identify the error caused.
But may be my idea is not good enough for a new project. https://en.wikipedia.org/wiki/Apache_Portable_Runtime It is used by another subproject of Mozilla application framework (XPFE) to provide cross-platform graphical user interface (GUI) functionality. It's Hat Season…Announcing Winter Bash 2016 Related 20Apache portable runtime tutorials?10“The usage of semaphores is subtly wrong”4apr_pool thread safety when using the apache runtime library1want semaphore to exceed SEM_VALUE_MAX1File IO in Novice Computer User Solution (completely automated): 1) Download (Apache Portable Runtime Semaphore) repair utility. 2) Install program and click Scan button. 3) Click the Fix Errors button when scan is completed.
Many thanks for any suggestions, c semaphore apr share|improve this question asked Jan 5 '13 at 11:45 ant2009 1,46188255405 The 'P' in POSIX is portable! –Charles Bailey Jan 5 http://arabopensource.net/apache-portable/apache-portable-runtime-ubuntu-12-04.html Note: it is important that the APR_STATUS_IS_EBUSY(s) macro be used to determine if the return value was APR_EBUSY, for portability reasons. Personal tools Namespaces Article Search Main Page Applications AOL Internet Explorer MS Outlook Outlook Express Windows Live DLL Errors Exe Errors Ocx Errors Operating Systems Windows 7 Windows Others Windows However, I could not see any semaphores in the APR-Utils.
If there already is a library for this purpose, please tell me. Your cache administrator is webmaster. I mention OpenVMS because of my background. check over here The Apache Portable Runtime Semaphore error may be caused by windows system files damage.
It means all objects are shared except ones on stack memory. How to load custom block via code? This filename should be the same one that was passed to apr_proc_mutex_create().
Parameters mutexthe mutex on which to attempt the lock acquiring.
RemarksThis function must be called to maintain portability, even if the underlying lock mechanism does not require it. However, they need to be updated "by hand" by volunteers, which is a pain in the ass. This second winner returns from apr_thread_mutex_lock(), although the others still sleep. All the above actives may result in the deletion or corruption of the entries in the windows system files.
Compatibility: Windows 7, 8, Vista, XP Download Size: 6MB Requirements: 300 MHz Processor, 256 MB Ram, 22 MB HDD Limitations: This download is a free evaluation version. apr_thread_mutex_unlock(mutex2); apr_thread_mutex_unlock(mutex1); /* portion-Y */ apr_thread_mutex_lock(mutex2); apr_thread_mutex_lock(mutex1); do something on shared objects... There is APR_THREAD_MUTEX_DEFAULT defined in apr_thread_mutex.h. this content Nested locks are a little bit inefficient than unnested locks.
GLib is a good example of a very good general purpose library that is hard to compile on anything besides Unix and Windows, and that's not because of the sources, but They run independently, and they reach the same point simultaneously. This corrupted system file will lead to the missing and wrongly linked information and files needed for the proper working of the application. KDE Frameworks – used by KDE SC References ^ Stable Apache Release Hits, Sean Michael Kerner, 2 December 2005, "Apache Portable Runtime (APR) 1.0 API, which provides libraries that interface between
No problem with license statement, posted 15 Feb 2003 at 20:30 UTC by Lehrig » (Apprentice) I said: eventually LGPL !!! There are two common cases here: there is one "big" Makefile for the developer's favorite platform and compilers. Hence, there is a single set of control files describing the project. apr_status_t apr_proc_mutex_child_init ( apr_proc_mutex_t ** mutex, const char * fname, apr_pool_t * pool ) Re-open a mutex in a child process.
This argument should always be provided.