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252e978c54
IN a bunch of comments we say 'under the terms of the GNU GPL', make it clear this is GPLv2 (as LICENSE says). Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
86 lines
1.5 KiB
C
86 lines
1.5 KiB
C
/*
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FUSE fselclient: FUSE select example client
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Copyright (C) 2008 SUSE Linux Products GmbH
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Copyright (C) 2008 Tejun Heo <teheo@suse.de>
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This program can be distributed under the terms of the GNU GPLv2.
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See the file COPYING.
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*/
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/** @file
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*
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* This program tests the poll.c example file systsem.
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*
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* Compile with:
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*
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* gcc -Wall poll_client.c -o poll_client
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*
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* ## Source code ##
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* \include poll_client.c
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*/
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#include <config.h>
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#include <sys/select.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#define FSEL_FILES 16
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int main(void)
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{
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static const char hex_map[FSEL_FILES] = "0123456789ABCDEF";
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int fds[FSEL_FILES];
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int i, nfds, tries;
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for (i = 0; i < FSEL_FILES; i++) {
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char name[] = { hex_map[i], '\0' };
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fds[i] = open(name, O_RDONLY);
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if (fds[i] < 0) {
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perror("open");
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return 1;
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}
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}
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nfds = fds[FSEL_FILES - 1] + 1;
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for(tries=0; tries < 16; tries++) {
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static char buf[4096];
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fd_set rfds;
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int rc;
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FD_ZERO(&rfds);
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for (i = 0; i < FSEL_FILES; i++)
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FD_SET(fds[i], &rfds);
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rc = select(nfds, &rfds, NULL, NULL, NULL);
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if (rc < 0) {
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perror("select");
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return 1;
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}
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for (i = 0; i < FSEL_FILES; i++) {
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if (!FD_ISSET(fds[i], &rfds)) {
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printf("_: ");
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continue;
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}
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printf("%X:", i);
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rc = read(fds[i], buf, sizeof(buf));
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if (rc < 0) {
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perror("read");
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return 1;
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}
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printf("%02d ", rc);
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}
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printf("\n");
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}
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return 0;
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}
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