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Full Discussion: User defined stacks for threads using glibc-2.3.5
Top Forums UNIX for Advanced & Expert Users User defined stacks for threads using glibc-2.3.5 Post 302180395 by ramen_noodle on Monday 31st of March 2008 03:43:00 AM
Old 03-31-2008
Not nearly enough information. There are a tremendous number of
gotchas in using pthread_attr_setstack.

See suns docs (not entirely on subject, but generic enough to be helpful) and the man page itself.
Multithreaded Programming Guide


header
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>

typedef struct custom_thread {
        int cr_return;
	int thread_stack_size;
	pthread_t tid;
	pthread_attr_t attr;
	void *newstack;
} CTHREAD;


extern CTHREAD *init_custom_thread(int, int (*)(void *));
extern void destroy_custom_thread(CTHREAD *);

library
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>



extern CTHREAD *init_custom_thread(int sz, int (*teststackalloc)(void *arg)) {
CTHREAD *ret;

               if ( (ret = malloc(sizeof(*ret))) == NULL) {return NULL;}
               ret->thread_stack_size = sz;
               if ( (ret->newstack = malloc(sz)) == NULL) {free(ret); return NULL;}
               if (teststackalloc!= NULL)
                    if (teststackalloc(ret->newstack) != 0) {free(ret->newstack); free(ret); return NULL;}
               }
               pthread_attr_init(&ret->attr);
               ret->cr_return = pthread_attr_setstack(&ret->attr,ret->newstack,ret->thread_stack_size);
               return ret;
}

extern void destroy_custom_thread(CTHREAD *arg) {

                                  if (arg->newstack != NULL) {free(arg->newstack); arg->newstack = NULL;}
                                  free(arg);
                                  arg = NULL;
}

test
Code:
#include "custom_stack.h"
#include <limits.h>

void *hello_world(void *arg) {
                             
                  printf("Hello world from thread id %d.\n",pthread_self());
                  pthread_exit(NULL);
}

int main(void) { 
CTHREAD *new_id;

               new_id = init_custom_thread(PTHREAD_STACK_MIN * 2, NULL);
               if (new_id == NULL) {return 1;}
               pthread_create(&new_id->tid,&new_id->attr,hello_world,NULL);
               pthread_join(new_id->tid,NULL);
               destroy_custom_thread(new_id);
               return 0;
}

Hopefully the above will point out any obvious errors you are making.
 

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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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