ADTaaron-thesisarm-ehast-experimentalcleanup-dtorsdeferred_resndemanglerenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprnew-envno_listpersistent-indexerpthread-emulationqualifiedEnumresolv-newwith_gc
Last change
on this file since b002261 was
b002261,
checked in by Thierry Delisle <tdelisle@…>, 7 years ago
|
Busy program now supports variable number of threads
|
-
Property mode set to
100644
|
File size:
1.3 KB
|
Line | |
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1 | #include <stdbool.h> |
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2 | #include <stdio.h> |
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3 | #include <stdlib.h> |
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4 | #include <pthread.h> |
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5 | |
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6 | struct S { |
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7 | int i, j, k, l, m, n; |
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8 | }; |
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9 | |
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10 | void * CallingMalloc( void * arg __attribute__((unused)) ) { |
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11 | for ( volatile int i = 0; i < 10000; i += 1 ) { |
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12 | volatile int * ip = (volatile int *)malloc( sizeof( int ) * 1 ); |
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13 | volatile int * aip = (volatile int *)malloc( sizeof( int ) * 100 ); |
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14 | volatile struct S * sp = (volatile struct S *)malloc( sizeof(struct S) * 200 ); |
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15 | |
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16 | sp->i = 0; |
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17 | sp->j = 1; |
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18 | sp->k = 2; |
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19 | sp->l = 3; |
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20 | sp->m = 4; |
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21 | sp->n = 5; |
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22 | for(int j = 0; j < 100; j++) { |
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23 | aip[j] = j; |
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24 | } |
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25 | *ip = i; |
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26 | |
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27 | free( (void*)sp ); |
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28 | free( (void*)aip ); |
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29 | free( (void*)ip ); |
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30 | } |
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31 | return NULL; |
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32 | } |
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33 | |
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34 | int main(int argc, const char * const argv[]) { |
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35 | char * endptr; |
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36 | int nThreads = 15; |
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37 | switch(argc) { |
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38 | case 1: |
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39 | break; |
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40 | case 2: |
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41 | nThreads = strtol(argv[1], &endptr, 10); |
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42 | if( *endptr != 0 || nThreads <= 0 ) { |
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43 | fprintf(stderr, "Invalid number of threads %s\n", argv[1]); |
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44 | return 1; |
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45 | } |
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46 | break; |
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47 | default: |
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48 | fprintf(stderr, "Usage: %s [no of threads]\n", argv[0]); |
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49 | return 1; |
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50 | } |
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51 | printf("Running %d threads\n", nThreads); |
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52 | while(true) { |
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53 | pthread_t t[nThreads]; |
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54 | for(int i = 0; i < nThreads; i++) { |
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55 | pthread_create( &t[i], NULL, CallingMalloc, NULL ); |
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56 | } |
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57 | |
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58 | for(int i = 0; i < nThreads; i++) { |
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59 | pthread_join( t[i], NULL ); |
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60 | } |
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61 | } |
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62 | return 0; |
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63 | } |
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