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Top Forums Programming Creating an array to hold posix thread ids: Only dynamic array works Post 302238622 by Roman Voznyuk on Sunday 21st of September 2008 08:13:45 AM
Old 09-21-2008
Where is this code called from?
I guess from some function.
In this case first example works fine becuase dynamically allocated threadids exists beyond this fucntion, but it second example it dies immediately.
Remember, pthread_create doesn't wait for actual start-up of new thread.
 

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PTHREAD_CREATE(3)					     Library Functions Manual						 PTHREAD_CREATE(3)

NAME
pthread_create - create a new thread SYNOPSIS
#include <pthread.h> int pthread_create(pthread_t * thread, pthread_attr_t * attr, void * (*start_routine)(void *), void * arg); DESCRIPTION
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 argument. The new thread terminates either explicitly, by calling pthread_exit(3), or implicitly, by returning from the start_routine function. The latter case is equivalent to calling pthread_exit(3) with the result returned by start_rou- tine 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. RETURN VALUE
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. ERRORS
EAGAIN not enough system resources to create a process for the new thread. EAGAIN more than PTHREAD_THREADS_MAX threads are already active. AUTHOR
Xavier Leroy <Xavier.Leroy@inria.fr> SEE ALSO
pthread_exit(3), pthread_join(3), pthread_detach(3), pthread_attr_init(3). LinuxThreads PTHREAD_CREATE(3)
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