thr_getprio(3c) [sunos man page]
thr_getprio(3C) Standard C Library Functions thr_getprio(3C) NAME
thr_getprio, thr_setprio - access dynamic thread scheduling SYNOPSIS
cc -mt [ flag... ] file...[ library... ] #include <thread.h> int thr_setprio(thread_t target_thread, int priority); int thr_getprio(thread_t target_thread, int *priority); DESCRIPTION
The thr_setprio() function dynamically changes the priority of the thread specified by target_thread within the current process to the pri- ority specified by priority. By default, threads contend for synchronization objects based on fixed priorities that range from 0, the least significant, to 127. The target_thread will receive precedence by libthread over lower priority threads with respect to synchro- nization object contention. The thr_getprio() function stores the current priority for the thread specified by target_thread in the location pointed to by priority. Thread priorities regulate the order in which threads unblock from synchronization objects and are different from realtime priorities, which regulate and enforce access to CPU resources. Programs that need access to "real" priorities should use bound threads in the realtime class (see priocntl(2)). RETURN VALUES
If successful, the thr_getprio() and thr_setprio() return 0. Otherwise, an error number is returned to indicate the error. ERRORS
For each of the following conditions, these functions return an error number if the condition is detected. ESRCH The value specified by target_thread does not refer to an existing thread. The thr_getprio() and thr_setprio() functions may fail if: EINVAL The value of priority makes no sense for the scheduling class associated with the target_thread. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
priocntl(2), sched_setparam(3RT), thr_create(3C), thr_suspend(3C), thr_yield(3C), attributes(5), standards(5) SunOS 5.10 22 Mar 2001 thr_getprio(3C)
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pthread_cancel(3C) Standard C Library Functions pthread_cancel(3C) NAME
pthread_cancel - cancel execution of a thread SYNOPSIS
cc -mt [ flag... ] file... -lpthread [ library... ] #include <pthread.h> int pthread_cancel(pthread_t target_thread); DESCRIPTION
The pthread_cancel() function requests that target_thread be canceled. By default, cancellation is deferred until target_thread reaches a cancellation point. See cancellation(5). Cancellation cleanup handlers for target_thread are called when the cancellation is acted on. Upon return of the last cancellation cleanup handler, the thread-specific data destructor functions are called for target_thread. target_thread is terminated when the last destructor function returns. A thread acting on a cancellation request runs with all signals blocked. All thread termination functions, including cancellation cleanup handlers and thread-specific data destructor functions, are called with all signals blocked. The cancellation processing in target_thread runs asynchronously with respect to the calling thread returning from pthread_cancel(). RETURN VALUES
If successful, the pthread_cancel() function returns 0. Otherwise, an error number is returned to indicate the error. ERRORS
The pthread_cancel() function may fail if: ESRCH No thread was found with an ID corresponding to that specified by the given thread ID, target_thread. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Committed | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ |Standard |See standards(5). | +-----------------------------+-----------------------------+ SEE ALSO
pthread_cleanup_pop(3C), pthread_cleanup_push(3C), pthread_cond_wait(3C), pthread_cond_timedwait(3C), pthread_exit(3C), pthread_join(3C), pthread_setcancelstate(3C), pthread_setcanceltype(3C), pthread_testcancel(3C), setjmp(3C), attributes(5), cancellation(5), condition(5), standards(5) NOTES
See cancellation(5) for a discussion of cancellation concepts. SunOS 5.11 2 Nov 2007 pthread_cancel(3C)