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Imported libSDF into VOID tree
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55 changed files with 12667 additions and 0 deletions
85
external/libsdf/libmpmy/timers_gettime.c
vendored
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85
external/libsdf/libmpmy/timers_gettime.c
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#include <time.h>
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#include "mpmy_time.h"
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#include "Malloc.h"
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#include "chn.h"
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static Chn timer_chn;
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static int initialized;
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typedef struct {
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int type;
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struct timespec cpu_start;
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double cpu_accum;
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struct timespec wc_start;
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double wc_accum;
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} MPMY_Timer;
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void *MPMY_CreateTimer(int type){
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MPMY_Timer *ret;
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if( initialized == 0 ){
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ChnInit(&timer_chn, sizeof(MPMY_Timer), 40, Realloc_f);
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initialized = 1;
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}
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ret = ChnAlloc(&timer_chn);
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ret->type = type;
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MPMY_ClearTimer(ret);
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return (void *)ret;
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}
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int MPMY_DestroyTimer(void *p){
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ChnFree(&timer_chn, p);
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return MPMY_SUCCESS;
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}
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int MPMY_StartTimer(void *p){
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MPMY_Timer *t = p;
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switch(t->type){
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case MPMY_CPU_TIME:
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clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &t->cpu_start);
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break;
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case MPMY_WC_TIME:
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clock_gettime(CLOCK_REALTIME, &t->wc_start);
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break;
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}
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return MPMY_SUCCESS;
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}
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int MPMY_StopTimer(void *p){
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MPMY_Timer *t = p;
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struct timespec tnow;
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switch(t->type){
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case MPMY_CPU_TIME:
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clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &tnow);
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t->cpu_accum += (tnow.tv_sec - t->cpu_start.tv_sec) + (tnow.tv_nsec - t->cpu_start.tv_nsec) * 1e-9;
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break;
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case MPMY_WC_TIME:
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clock_gettime(CLOCK_REALTIME, &tnow);
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t->wc_accum += (tnow.tv_sec - t->wc_start.tv_sec) + (tnow.tv_nsec - t->wc_start.tv_nsec) * 1e-9;
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break;
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}
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return MPMY_SUCCESS;
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}
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int MPMY_ClearTimer(void *p){
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MPMY_Timer *t = p;
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t->cpu_accum = 0.0;
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t->wc_accum = 0.0;
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return MPMY_SUCCESS;
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}
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double MPMY_ReadTimer(void *p){
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MPMY_Timer *t = p;
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switch(t->type){
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case MPMY_CPU_TIME:
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return t->cpu_accum;
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case MPMY_WC_TIME:
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return t->wc_accum;
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}
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return -1.0;
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}
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