papi_set_thr_specific(3) - Linux man page
Name
PAPI_get_thr_specific, PAPI_set_thr_specific - Store or retrieve apointer to a thread specific data structure
Synopsis
#include <papi.h>int PAPI_get_thr_specific(int tag, void **ptr);int PAPI_set_thr_specific(int tag, void *ptr);
Description
In C, PAPI_set_thr_specific will save ptr into an array indexed by tag. PAPI_get_thr_specific will retrieve the pointer from the array with index tag. There are 2 user available locations and tag can be either PAPI_USR1_TLS or PAPI_USR2_TLS. The array mentioned above is managed by PAPI and allocated to each thread which has called PAPI_thread_init. There are no Fortran equivalent functions.Arguments
tag -- An identifier, the value of which is either PAPI_USR1_TLS or PAPI_USR2_TLS. This identifier indicates which of several data structures associated with this thread is to be accessed.
ptr -- A pointer to the memory containing the data structure.
Return Values
On success, this function returns PAPI_OK. On error, a negative error value is returned.Errors
- PAPI_EINVAL
- The tag argument is out of range.
Example
HighLevelInfo *state = NULL;
if (retval = PAPI_thread_init(pthread_self) != PAPI_OK)
handle_error(retval);
/*
* Do we have the thread specific data setup yet?
*/
if ((retval = PAPI_get_thr_specific(PAPI_USR1_TLS, (void *) &state))
!= PAPI_OK || state == NULL) {
state = (HighLevelInfo *) malloc(sizeof(HighLevelInfo));
if (state == NULL)
return (PAPI_ESYS);
memset(state, 0, sizeof(HighLevelInfo));
state->EventSet = PAPI_NULL;
if ((retval = PAPI_create_eventset(&state->EventSet)) != PAPI_OK)
return (PAPI_ESYS);
if ((retval=PAPI_set_thr_specific(PAPI_USR1_TLS, state))!=PAPI_OK)
return (retval);
}