cpus.h File Reference

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Data Structures
struct	CpuInfo_t

Functions
int	_papi_hwi_initialize_cpu (CpuInfo_t **dest, unsigned int cpu_num)
int	_papi_hwi_shutdown_cpu (CpuInfo_t *cpu)
int	_papi_hwi_lookup_or_create_cpu (CpuInfo_t **here, unsigned int cpu_num)

Detailed Description

Author: Gary Mohr gary..nosp@m.mohr.nosp@m.@bull.nosp@m..com

• based on threads.h by unknown author -

Definition in file cpus.h.

Function Documentation

_papi_hwi_initialize_cpu()

int _papi_hwi_initialize_cpu	(	CpuInfo_t **	dest,
		unsigned int	cpu_num
	)

Definition at line 275 of file cpus.c.

{
   APIDBG("Entry: dest: %p, *dest: %p, cpu_num: %d\n", dest, *dest, cpu_num);
 
   int retval;
   CpuInfo_t *cpu;
   int i;
 
   if ( ( cpu = allocate_cpu(cpu_num) ) == NULL ) {
      *dest = NULL;
      return PAPI_ENOMEM;
   }
 
   /* Call the component to fill in anything special. */
   for ( i = 0; i < papi_num_components; i++ ) {
      if (_papi_hwd[i]->cmp_info.disabled &&
          _papi_hwd[i]->cmp_info.disabled != PAPI_EDELAY_INIT)
          continue;
      retval = _papi_hwd[i]->init_thread( cpu->context[i] );
      if ( retval ) {
     free_cpu( &cpu );
     *dest = NULL;
     return retval;
      }
   }
 
   insert_cpu( cpu );
 
   *dest = cpu;
   return PAPI_OK;
}

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_papi_hwi_lookup_or_create_cpu()

int _papi_hwi_lookup_or_create_cpu	(	CpuInfo_t **	here,
		unsigned int	cpu_num
	)

Definition at line 59 of file cpus.c.

{
   APIDBG("Entry: here: %p\n", here);
    
   CpuInfo_t *tmp = NULL;
   int retval = PAPI_OK;
 
   _papi_hwi_lock( CPUS_LOCK );
 
   tmp = _papi_hwi_lookup_cpu(cpu_num);
   if ( tmp == NULL ) {
      retval = _papi_hwi_initialize_cpu( &tmp, cpu_num );
   }
 
   /* Increment use count */
   tmp->num_users++;
 
   if ( retval == PAPI_OK ) {
      *here = tmp;
   }
 
   _papi_hwi_unlock( CPUS_LOCK );
    
   return retval;
}

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_papi_hwi_shutdown_cpu()

int _papi_hwi_shutdown_cpu

(

CpuInfo_t *

cpu

)

Definition at line 308 of file cpus.c.

{
   APIDBG("Entry: cpu: %p, cpu_num: %d\n", cpu, cpu->cpu_num);
 
   free_cpu( &cpu );
 
   return PAPI_OK;
}

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