mirror of
https://github.com/libfuse/libfuse.git
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wangrzneu
22d0fcd4c7
Replace the FSEL_FILES macro and explicit char array with a string literal for hex_map, deriving the file count from sizeof. Use size_t for loop variables and fix the printf format specifier accordingly. Signed-off-by: wangrzneu <wangrzneu@gmail.com>
85 lines
1.6 KiB
C
85 lines
1.6 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 GPL2.txt.
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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 <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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int main(void)
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{
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static const char hex_map[] = "0123456789ABCDEF";
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const size_t fsel_files = sizeof(hex_map) - 1;
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int fds[sizeof(hex_map) - 1];
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size_t i, tries;
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int nfds;
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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 < fsel_files; 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("%zX:", 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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