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Get a thread-specific data value
#include <pthread.h>
void* pthread_getspecific( pthread_key_t key );
- key
- The key associated with the data that you want to get.
See
pthread_key_create().
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
The pthread_getspecific() function returns the thread-specific
data value currently bound to the thread-specific-data key
key in the calling thread, or NULL if no value
is bound or the key doesn't exist.
You can call this function from a thread-specific-data destructor function.
|
You must call this function with a key that you got from
pthread_key_create().
You can't use a key after destroying it with
pthread_key_delete(). |
The data value, or NULL.
See
pthread_key_create().
POSIX 1003.1 THR
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
Yes |
Thread |
Yes |
pthread_key_create(),
pthread_key_delete(),
pthread_setspecific()
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