回答編集履歴
1
追記
test
CHANGED
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@@ -53,3 +53,53 @@
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53
53
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54
54
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都合11回 lockしてます。
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正しくは:
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```C
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60
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61
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void *calc(void *arg)
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63
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{
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mythread_args_t *targs = (mythread_args_t *) arg;
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int prev;
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int i;
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for(i=0;i<10;i++){
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pthread_mutex_lock(targs->mlock); /* ココから */
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prev = count;
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sleep(rand() % 5);
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count = prev + 1;
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pthread_mutex_unlock(targs->mlock); /* ココまで排他 */
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printf("[%s] %d -> %d\n", (char *)arg, prev, count);
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sleep(rand() % 5);
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}
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pthread_exit(NULL);
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}
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```
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104
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ってとこかしら。
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