pthread_getlwpid_np(3T)pthread_getlwpid_np(3T)NAME
pthread_getlwpid_np() - get the Light Weight Process ID of a thread
SYNOPSIS PARAMETERS
thread Thread whose Light Weight Process ID is required.
lwpid Pointer to the location where the Light Weight Process ID of the thread is to be returned.
DESCRIPTION
Each thread is associated with a unique system wide Light Weight Process ID (LWPID). stores the LWPID of the target thread in lwpid.
The function is applicable only for threads.
RETURN VALUE
Upon successful completion, returns zero. Otherwise, an error number is returned to indicate the error (the errno variable is not set).
ERRORS
If any of the following problems occur, the function returns the corresponding error number:
The value specified by
thread does not refer to a thread, or the value lwpid points to is an illegal address.
No thread could be found corresponding to
thread.
AUTHOR
was developed by HP.
SEE ALSO pthread_attr_init(3T), pthread_create(3T).
Pthread Library pthread_getlwpid_np(3T)
Check Out this Related Man Page
PTHREAD_JOIN(3) BSD Library Functions Manual PTHREAD_JOIN(3)NAME
pthread_join -- wait for thread termination
SYNOPSIS
#include <pthread.h>
int
pthread_join(pthread_t thread, void **value_ptr);
DESCRIPTION
The pthread_join() function suspends execution of the calling thread until the target thread terminates, unless the target thread has already
terminated.
On return from a successful pthread_join() call with a non-NULL value_ptr argument, the value passed to pthread_exit() by the terminating
thread is stored in the location referenced by value_ptr. When a pthread_join() returns successfully, the target thread has been terminated.
The results of multiple simultaneous calls to pthread_join(), specifying the same target thread, are undefined. If the thread calling
pthread_join() is cancelled, the target thread is not detached.
RETURN VALUES
If successful, the pthread_join() function will return zero. Otherwise, an error number will be returned to indicate the error.
ERRORS
pthread_join() will fail if:
[EDEADLK] A deadlock was detected or the value of thread specifies the calling thread.
[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, thread.
SEE ALSO wait(2), pthread_create(3)STANDARDS
pthread_join() conforms to ISO/IEC 9945-1:1996 (``POSIX.1'').
BSD April 4, 1996 BSD
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