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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LEARN ABOUT CENTOS
papi_remove_named_event
PAPI_remove_named_event(3) PAPI PAPI_remove_named_event(3)
NAME
PAPI_remove_named_event -
removes a named hardware event from a PAPI event set.
SYNOPSIS
Detailed Description
A hardware event can be either a PAPI Preset or a native hardware
event code. For a list of PAPI preset events, see PAPI_presets or
run the papi_avail utility in the PAPI distribution. PAPI Presets
can be passed to PAPI_query_event to see if they exist on the
underlying architecture. For a list of native events available on
the current platform, run papi_native_avail in the PAPI distribution.
@par C Interface:
int PAPI_remove_event( int EventSet, int EventCode );
@param[in] EventSet
-- an integer handle for a PAPI event set as created
by PAPI_create_eventset
@param[in] EventName
-- a defined event such as PAPI_TOT_INS or a native event.
@retval PAPI_OK
Everything worked.
@retval PAPI_EINVAL
One or more of the arguments is invalid.
@retval PAPI_ENOINIT
The PAPI library has not been initialized.
@retval PAPI_ENOEVST
The EventSet specified does not exist.
@retval PAPI_EISRUN
The EventSet is currently counting events.
@retval PAPI_ECNFLCT
The underlying counter hardware can not count this
event and other events in the EventSet simultaneously.
@retval PAPI_ENOEVNT
The PAPI preset is not available on the underlying hardware.
@par Example:
* char EventName = "PAPI_TOT_INS";
* int EventSet = PAPI_NULL;
* int ret;
*
* // Create an empty EventSet
* ret = PAPI_create_eventset(&EventSet);
* if (ret != PAPI_OK) handle_error(ret);
*
* // Add Total Instructions Executed to our EventSet
* ret = PAPI_add_named_event(EventSet, EventName);
* if (ret != PAPI_OK) handle_error(ret);
*
* // Start counting
* ret = PAPI_start(EventSet);
* if (ret != PAPI_OK) handle_error(ret);
*
* // Stop counting, ignore values
* ret = PAPI_stop(EventSet, NULL);
* if (ret != PAPI_OK) handle_error(ret);
*
* // Remove event
* ret = PAPI_remove_named_event(EventSet, EventName);
* if (ret != PAPI_OK) handle_error(ret);
*
See Also:
PAPI_remove_event
PAPI_query_named_event
PAPI_add_named_event
Author
Generated automatically by Doxygen for PAPI from the source code.
Version 5.2.0.0 Tue Jun 17 2014 PAPI_remove_named_event(3)