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Full Discussion: execlp to sort
Top Forums Programming execlp to sort Post 302147818 by jim mcnamara on Wednesday 28th of November 2007 04:49:42 PM
Old 11-28-2007
This works:
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <fcntl.h>
#include <errno.h>

int main(int argc, char *argv[])
{
        int ret;

        ret = execlp("sort","sort","-T", "/tmp","zma.txt",NULL);
        if (ret == -1) {
                fprintf(stderr, "Could not sort file (%s)", strerror(errno));
                exit(1);
        }
        return(1);
}

I used zma.txt as the file to sort, because that's an all-purpose junk file I have.
 

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LEARN ABOUT CENTOS

papi_remove_event

PAPI_remove_event(3)						       PAPI						      PAPI_remove_event(3)

NAME

       PAPI_remove_event -

       removes a 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] EventCode
	  -- 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_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:

       *   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_event(EventSet, PAPI_TOT_INS);
       *   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_event(EventSet, PAPI_TOT_INS);
       *   if (ret != PAPI_OK) handle_error(ret);
       *

       See Also:
	   PAPI_cleanup_eventset

	   PAPI_destroy_eventset

	   PAPI_event_name_to_code

	   PAPI_presets

	   PAPI_add_event

	   PAPI_add_events

Author
       Generated automatically by Doxygen for PAPI from the source code.

Version 5.2.0.0 						  Tue Jun 17 2014					      PAPI_remove_event(3)
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