Attachment 876851 Details for Bug 1078894 – readahead test program

readahead test program

readahead-pipe-socket.c (text/plain), 1.03 KB, created by Jeff Bastian on 2014-03-20 13:55:46 UTC

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Creator: Jeff Bastian

Created: 2014-03-20 13:55:46 UTC

Size: 1.03 KB

patch

obsolete

>#define _GNU_SOURCE
>#include <stdlib.h>
>#include <stdio.h>
>#include <errno.h>
>#include <fcntl.h>
>#include <unistd.h>
>#include <sys/types.h>
>#include <sys/socket.h>
>#include <sys/syscall.h>
>
>int main(void)
>{
>	int fd[2];
>	int ret;
>	int errsave;
>
>	printf("test_invalid_fd pipe:\n");
>	if (pipe(fd) < 0) {
>		printf("Failed to create pipe\n");
>		exit(-1);
>	}
>	ret = syscall(__NR_readahead, fd[0], 0, getpagesize());
>	errsave = errno;
>	printf("  %s: readahead returned %d\n", 
>		(ret == -1) ? "success" : "failure", ret);
>	printf("  %s: errno is %d\n",
>		(errsave == EINVAL) ? "success" : "failure", errsave);
>	close(fd[0]);
>	close(fd[1]);
>
>	printf("test_invalid_fd socket:\n");
>	fd[0] = socket(AF_INET, SOCK_STREAM, 0);
>	if (fd[0] < 0) {
>		printf("Failed to create socket\n");
>		exit(-1);
>	}
>	ret = syscall(__NR_readahead, fd[0], 0, getpagesize());
>	errsave = errno;
>	printf("  %s: readahead returned %d\n", 
>		(ret == -1) ? "success" : "failure", ret);
>	printf("  %s: errno is %d\n",
>		(errsave == EINVAL) ? "success" : "failure", errsave);
>	close(fd[0]);
>}

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Attachments on bug 1078894: 876851