Apache Portable Runtime Thread
Please take a look at thread-sample.c and execute it in order to know how threads work. If APR_NO_FILE is specified, that corresponding stream is closed in the child (and will be INVALID_HANDLE_VALUE when inspected on Win32). this should be revisited in 1.0 apr_status_t apr_procattr_addrspace_set ( apr_procattr_t * attr, apr_int32_t addrspace ) Determine if the child should start in its own address space or using the current one See alsoapr_procattr_io_set instead for simple pipes. apr_status_t apr_procattr_cmdtype_set ( apr_procattr_t * attr, apr_cmdtype_e cmd ) Set what type of command the child process will call. http://arabopensource.net/apache-portable/apache-portable-runtime-thread-tutorial.html
Parameters dataThe user data associated with the thread. NoteThis function returns without waiting for the new process to terminate; use apr_proc_wait for that. Version 1.0 generally means (the API is frozen until version 2.0 where the API update is also frozen until version 3.0). Parameters attrThe procattr we care about.
Parameters dataThe data to set. You really need to make sure that even if Vn of the platform is in a JVM that components using Vn-3,Vn-2,Vn-2 and Vn can coexist on the same class loader with by Finsals Collons on September 05 2004 11:30 EDT Platform portability, not version portability by Joe Schmetzer on September 06 2004 03:28 EDT Apache Portable Runtime 1.0 Release[ Go to top typedef struct apr_thread_once_t apr_thread_once_t Opaque control variable for one-time atomic variables.
No doubt we are scratching our heads! There are template/file changes awaiting review. Must be a valid file. APR actually has pretty strong guarantees on version portability, as well.
apr_status_t apr_procattr_child_err_set ( struct apr_procattr_t * attr, apr_file_t * child_err, apr_file_t * parent_err ) Set the child_err and parent_err values to existing apr_file_t values. Chesscademy Tactic: Is my alternative as good as the right answer? All threads in the same process share one memory space. http://dev.ariel-networks.com/apr/apr-tutorial/html/apr-tutorial-16.html See http://apr.apache.org/versioning.html for details.
So, it's OK to just return NULL. apr_status_t apr_procattr_user_set ( apr_procattr_t * attr, const char * username, const char * password ) Set the username used for running process Parameters attrThe procattr we care about. If it isn't (see GCC C++ for an example), I'll agree with you. How to Protect Against FTL Sneak Attacks Should I buy a train ticket in advance to travel from Brussels to Bruges during Christmas?
My recommendation for workaround is that you should use non-detached thread, and should call apr_thread_join() to know whether you can destory 'thread-mp'. http://www.thenoccave.com/2014/01/20/apache-portable-runtime-apr-threaded-socket-server/ contThe pool to use apr_status_t apr_procattr_detach_set ( apr_procattr_t * attr, apr_int32_t detach ) Determine if the child should start in detached state. apr_status_t apr_threadattr_guardsize_set ( apr_threadattr_t * attr, apr_size_t guardsize ) Set the stack guard area size of newly created threads. I found more than one example for cleaning up APR threads after usage.
APR_CHILD_NOTDONE – child is still running. http://arabopensource.net/apache-portable/apache-portable-runtime-ubuntu-12-04.html Parameters ocrThe registered other child reasonThe reason code (e.g. apr_status_t apr_procattr_child_in_set ( struct apr_procattr_t * attr, apr_file_t * child_in, apr_file_t * parent_in ) Set the child_in and/or parent_in values to existing apr_file_t values. The system returned: (22) Invalid argument The remote host or network may be down.
The only thing I am not really sure about is if the cleanup works fine. Then, we just call apr_thread_create() so that we can create a new thread. /* excerpted from apr_thread_proc.h */
APR_DECLARE(apr_status_t) apr_thread_create(apr_thread_t **new_thread, apr_threadattr_t *attr, apr_thread_start_t func, void *data, apr_pool_t *cont);Thread and memory pool is difficult to control properly. check over here apr_status_t apr_os_threadkey_get ( apr_os_threadkey_t * thekey, apr_threadkey_t * key ) convert the thread private memory key to os specific type from an apr type.
Parameters attrThe procattr describing the child process to be created. In general, process is a virtualization of CPU and memory. sigHow to kill the process.
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We use the Memcache library with APR, and also present an example which uses APR shared memory. It provides a set of APIs that map to the underlying operating system. local objects. Parameters dataThe user data associated with the threadkey.
Having independent PC implies that multiple threads run simultaneously. Parameters keyThe apr handle we are converting to. REMARK: Main thread is sometimes called parent thread, but some people don't like such parent/child naming. this content Parameters procThe child process to register.
The third argument is function pointer, from which a new thread starts to run. Parameters procThe process to terminate. One of: APR_SHELLCMD – Anything that the shell can handle APR_PROGRAM – Executable program (default) APR_PROGRAM_ENV – Executable program, copy environment APR_PROGRAM_PATH – Executable program on PATH, copy env apr_status_t apr_procattr_create keyThe key associated with the data threadkeyThe currently open threadkey.
If you don't do this then it's not a platform for anything. Parameters attrThe procattr we care about. Part of Springer Nature. You really need to make sure that even if Vn of the platform is in a JVM that components using Vn-3,Vn-2,Vn-2 and Vn can coexist on the same class loader with
It also means we can't know when we can destroy 'thread-mp'. By calling apr_thread_join(), we can get status code from terminated thread, which has called apr_thread_exit(). Reply to this Reply to original Search About Us| Contact Us| For Advertisers| For Business Partners| Site Index| RSS TechTarget provides technology professionals with the information they need to perform their