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authorLennart Poettering <lennart@poettering.net>2004-12-18 23:29:50 +0000
committerLennart Poettering <lennart@poettering.net>2004-12-18 23:29:50 +0000
commit91511db7500439088b8b3bb08ce6ee6f8f8e6499 (patch)
tree06e43cebbd77993fa7ce7a9ad11ccc0b7a4ff3ab /src/dsignal.c
parent46be51bbc763d02922da18b1b3d7946aba9ab4ea (diff)
rename src/ to libdaemon/
git-svn-id: file:///home/lennart/svn/public/libdaemon/trunk@71 153bfa13-eec0-0310-be40-b0cb6a0e1b4b
Diffstat (limited to 'src/dsignal.c')
-rw-r--r--src/dsignal.c152
1 files changed, 0 insertions, 152 deletions
diff --git a/src/dsignal.c b/src/dsignal.c
deleted file mode 100644
index 2eafc0c..0000000
--- a/src/dsignal.c
+++ /dev/null
@@ -1,152 +0,0 @@
-/* $Id$ */
-
-/*
- * This file is part of libdaemon.
- *
- * libdaemon is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * libdaemon is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with libdaemon; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <fcntl.h>
-#include <unistd.h>
-#include <errno.h>
-#include <string.h>
-#include <stdarg.h>
-#include <signal.h>
-
-#include "dsignal.h"
-#include "dlog.h"
-#include "dnonblock.h"
-
-static int _signal_pipe[2] = { -1, -1 };
-
-static void _sigfunc(int s) {
- write(_signal_pipe[1], &s, sizeof(s));
-}
-
-static int _init(void) {
-
- if (_signal_pipe[0] < 0 || _signal_pipe[1] < 0) {
- if (pipe(_signal_pipe) < 0) {
- daemon_log(LOG_ERR, "pipe(): %s", strerror(errno));
- return -1;
- }
-
- if (daemon_nonblock(_signal_pipe[0], 1) < 0 || daemon_nonblock(_signal_pipe[1], 1) < 0)
- return -1;
-
- }
-
- return 0;
-}
-
-int daemon_signal_install(int s){
- sigset_t sigset;
- struct sigaction sa;
-
- if (_init() < 0)
- return -1;
-
- if (sigemptyset(&sigset) < 0) {
- daemon_log(LOG_ERR, "sigemptyset(): %s", strerror(errno));
- return -1;
- }
-
- if (sigaddset(&sigset, s) < 0) {
- daemon_log(LOG_ERR, "sigaddyset(): %s", strerror(errno));
- return -1;
- }
-
- if (sigprocmask(SIG_UNBLOCK, &sigset, NULL) < 0) {
- daemon_log(LOG_ERR, "sigprocmask(): %s", strerror(errno));
- return -1;
- }
-
- memset(&sa, 0, sizeof(sa));
- sa.sa_handler = _sigfunc;
- sigemptyset(&sa.sa_mask);
- sa.sa_flags = SA_RESTART;
-
- if (sigaction(s, &sa, NULL) < 0) {
- daemon_log(LOG_ERR, "sigaction(%s, ...) failed: %s", strsignal(s), strerror(errno));
- return -1;
- }
-
- return 0;
-}
-
-int daemon_signal_init(int s, ...) {
- int sig, r = 0;
-
- va_list ap;
- va_start(ap, s);
-
- if (_init() < 0)
- return -1;
-
- sig = s;
- while (sig > 0) {
- if (daemon_signal_install(sig) < 0) {
- r = -1;
- break;
- }
-
- sig = va_arg(ap, int);
- }
-
- va_end(ap);
-
-
- return r;
-}
-
-void daemon_signal_done(void) {
- if (_signal_pipe[0] != -1)
- close(_signal_pipe[0]);
-
- if (_signal_pipe[1] != -1)
- close(_signal_pipe[1]);
-
- _signal_pipe[0] = _signal_pipe[1] = -1;
-}
-
-int daemon_signal_next(void) {
- int s;
- ssize_t r;
-
- if ((r = read(_signal_pipe[0], &s, sizeof(s))) == sizeof(s))
- return s;
-
-
- if (r < 0) {
-
- if (errno == EAGAIN)
- return 0;
- else {
- daemon_log(LOG_ERR, "read(signal_pipe[0], ...): %s", strerror(errno));
- return -1;
- }
- }
-
- daemon_log(LOG_ERR, "Short read() on signal pipe.");
- return -1;
-}
-
-int daemon_signal_fd(void) {
- return _signal_pipe[0];
-}