32 lines
634 B
C
32 lines
634 B
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <time.h>
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int main(int argc, char *argv[])
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{
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if (argc!=3) {
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printf("Usage: %s <file> <string>", argv[0]);
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return -1;
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}
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FILE * f = fopen(argv[1], "w+");
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if (f==NULL) {
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printf("Error while opening file %s\n", argv[1]);
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return -2;
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}
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for (int i = 0; i<2000; i++) {
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fprintf(f, "%s", argv[2]);
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usleep(rand()%100);
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}
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fclose(f);
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return 0;
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}
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/*
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* Si programme executé plusieurs fois sur le même fichier simultanément, deuxième programme lancé prend le pas après un court temps
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*/
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