Attachment 52757 Details for Bug 79887 – pr79887.c

pr79887.c

pr79887.c (text/x-csrc; charset=us-ascii), 1.50 KB, created by Vasil Dimov on 2010-12-07 07:42:02 UTC

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Creator: Vasil Dimov

Created: 2010-12-07 07:42:02 UTC

Size: 1.50 KB

patch

obsolete

>#include <sys/types.h>
>#include <sys/uio.h>
>
>#include <errno.h>
>#include <fcntl.h>
>#include <pthread.h>    
>#include <stdio.h>
>#include <stdlib.h>
>#include <string.h>
>#include <unistd.h>     
>
>FILE*	l;
>
>void*
>openmany(void* p)
>{
>	int			fds[1500];
>	unsigned long long	i, j;
>	char			filename[100];
>
>	for (i = 0; ; i++) {
>		for (j = 0; j < 1500; j++) {
>
>			snprintf(filename, sizeof(filename),
>				 "/tmp/ib%04llu", j);
>			fds[j] = open(filename, O_RDWR | O_CREAT, 0644);
>			fprintf(l, "open(): %s: %d\n", filename, fds[j]);
>			if (fds[j] == -1) {
>				fprintf(l, "open(): %s: %s\n", filename,
>					strerror(errno));
>				exit(1);
>			}
>			write(fds[j], "ABCABCABC", 9);
>		}
>
>		for (j = 0; j < 1500; j++) {
>			int	ret;
>
>			ret = close(fds[j]);
>
>			fprintf(l, "close(): %d: %d\n", fds[j], ret);
>
>			if (ret == -1) {
>				fprintf(l, "error: close(%d): %s\n", fds[j],
>				       strerror(errno));
>				exit(1);
>			}
>		}
>	}
>}
>
>void*
>reopenstd(void* p)
>{
>	unsigned long long i;
>
>	for (i = 0; ; i++) {
>		freopen("/tmp/std_redirected", "a+", stdout);
>		freopen("/tmp/std_redirected", "a+", stderr);
>		printf("XXXXXXXXXXX %llu\n", i);
>	}
>
>	return(NULL);
>}
>
>int
>main(int argc, char **argv, char **envp)
>{
>	pthread_t	t1;
>	pthread_t	t2;
>	void*		ret;
>
>	l = fopen("/tmp/log", "w");
>	if (l == NULL) {
>		fprintf(stderr, "error: fopen(): /tmp/log: %s\n",
>			strerror(errno));
>		exit(1);
>	}
>
>	pthread_create(&t1, NULL, reopenstd, NULL);
>	pthread_create(&t2, NULL, openmany, NULL);
>
>	pthread_join(t1, &ret);
>	pthread_join(t2, &ret);
>
>	fclose(l);
>
>	return(0);
>}

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Attachments on bug 79887: 52756 | 52757 | 52758