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pthread_create - create a new thread
int pthread_create(pthread_t * thread, pthread_attr_t * attr, void * (*start_routine)(void
*), void * arg);
pthread_create creates a new thread of control that executes concurrently with the calling
thread. The new thread applies the function start_routine passing it arg as first argu-
ment. The new thread terminates either explicitly, by calling pthread_exit(3), or implic-
itly, by returning from the start_routine function. The latter case is equivalent to call-
ing pthread_exit(3) with the result returned by start_routine as exit code.
The attr argument specifies thread attributes to be applied to the new thread. See
pthread_attr_init(3) for a complete list of thread attributes. The attr argument can also
be NULL, in which case default attributes are used: the created thread is joinable (not
detached) and has default (non real-time) scheduling policy.
On success, the identifier of the newly created thread is stored in the location pointed
by the thread argument, and a 0 is returned. On error, a non-zero error code is returned.
EAGAIN not enough system resources to create a process for the new thread.
EAGAIN more than PTHREAD_THREADS_MAX threads are already active.
Xavier Leroy <Xavier.Leroy@inria.fr>
pthread_exit(3), pthread_join(3), pthread_detach(3), pthread_attr_init(3).
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