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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LEARN ABOUT SUNOS
pthread_detach
pthread_detach(3C) pthread_detach(3C)
NAME
pthread_detach - detach a thread
SYNOPSIS
cc -mt [ flag... ] file... -lpthread [ library... ]
#include <pthread.h>
int pthread_detach(pthread_t thread);
The pthread_detach() function is used to indicate to the implementation that storage for the thread thread can be reclaimed when that
thread terminates. In other words, pthread_detach() dynamically resets the detachstate attribute of the thread to PTHREAD_CRE-
ATE_DETACHED. After a successful call to this function, it would not be necessary to reclaim the thread using pthread_join(). See
pthread_join(3C). If thread has not terminated, pthread_detach() will not cause it to terminate. The effect of multiple pthread_detach()
calls on the same target thread is unspecified.
If successful, pthread_detach() returns 0. Otherwise, an error number is returned to indicate the error.
The pthread_detach() function will fail if:
EINVAL The implementation has detected that the value specified by thread does not refer to a joinable thread.
ESRCH No thread could be found corresponding to that specified by the given thread ID.
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
pthread_create(3C), pthread_join(3C), attributes(5), standards(5)
23 Mar 2005 pthread_detach(3C)