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Set a thread-specific data value
#include <pthread.h>
int pthread_setspecific( pthread_key_t key,
const void* value );
- key
- The key associated with the data that you want to set.
See
pthread_key_create().
- value
- The value that you want to store.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
The pthread_setspecific() function binds the thread specific
data value value with the thread specific data key
key.
You can call this function from within 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(). |
- EOK
- Success.
- ENOMEM
- Insufficient memory to store thread specific data value value.
- EINVAL
- Invalid thread specific data key key.
See
pthread_key_create().
POSIX 1003.1 THR
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
No |
Thread |
Yes |
Calling pthread_setspecific() with a non-NULL
value may result in lost storage or infinite loops unless
value was returned by pthread_key_create().
pthread_key_create(),
pthread_getspecific()
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