mirror of https://github.com/t1meshift/os_labs.git
33 lines
745 B
C
33 lines
745 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "mythreads.h"
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#include "main-header.h"
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#include "vector-header.h"
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// use this to make lock acquisition ATOMIC
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pthread_mutex_t global = PTHREAD_MUTEX_INITIALIZER;
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void vector_add(vector_t *v_dst, vector_t *v_src) {
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// put GLOBAL lock around all lock acquisition...
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Pthread_mutex_lock(&global);
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Pthread_mutex_lock(&v_dst->lock);
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Pthread_mutex_lock(&v_src->lock);
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Pthread_mutex_unlock(&global);
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int i;
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for (i = 0; i < VECTOR_SIZE; i++) {
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v_dst->values[i] = v_dst->values[i] + v_src->values[i];
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}
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Pthread_mutex_unlock(&v_dst->lock);
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Pthread_mutex_unlock(&v_src->lock);
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}
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void fini() {}
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#include "main-common.c"
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