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Top Forums Programming How to get system() function executed cmd return value ? Post 302093242 by haiudhaya on Wednesday 18th of October 2006 07:02:52 AM
Old 10-18-2006
How to get system() function executed cmd return value ?

Hi,

How I can get system function executed command return value ? I want to know mv command success or not ?

#include <stdio.h>
main()
{
int ret;

ret = system( "mv x.dat y.dat" );
printf( "system ret:[%d]\n", ret );
}
 

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PAPI_get_thr_specific(3)					       PAPI						  PAPI_get_thr_specific(3)

NAME
PAPI_get_thr_specific - Retrieve a pointer to a thread specific data structure. SYNOPSIS
Detailed Description @par Prototype: int PAPI_get_thr_specific( int tag, void **ptr ); @param 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. @param ptr A pointer to the memory containing the data structure. @retval PAPI_OK @retval PAPI_EINVAL The @em tag argument is out of range. In C, PAPI_get_thr_specific PAPI_get_thr_specific will retrieve the pointer from the array with index @em tag. There are 2 user available locations and @em 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 is no Fortran equivalent function. @par Example: int ret; HighLevelInfo *state = NULL; ret = PAPI_thread_init(pthread_self); if (ret != PAPI_OK) handle_error(ret); // Do we have the thread specific data setup yet? ret = PAPI_get_thr_specific(PAPI_USR1_TLS, (void *) &state); if (ret != PAPI_OK || state == NULL) { state = (HighLevelInfo *) malloc(sizeof(HighLevelInfo)); if (state == NULL) return (PAPI_ESYS); memset(state, 0, sizeof(HighLevelInfo)); state->EventSet = PAPI_NULL; ret = PAPI_create_eventset(&state->EventSet); if (ret != PAPI_OK) return (PAPI_ESYS); ret = PAPI_set_thr_specific(PAPI_USR1_TLS, state); if (ret != PAPI_OK) return (ret); } * See Also: PAPI_register_thread PAPI_thread_init PAPI_thread_id PAPI_set_thr_specific Author Generated automatically by Doxygen for PAPI from the source code. Version 5.2.0.0 Tue Jun 17 2014 PAPI_get_thr_specific(3)
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