New files to implement calcurse daemon.
This commit is contained in:
Frederic Culot
parent
e3a97fc8f6
commit
c20463c47d
@ -1,4 +1,4 @@
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# $calcurse: Makefile.am,v 1.9 2009/07/05 20:33:13 culot Exp $
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# $calcurse: Makefile.am,v 1.10 2009/07/20 19:44:05 culot Exp $
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AUTOMAKE_OPTIONS= foreign
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@ -22,7 +22,8 @@ calcurse_SOURCES= \
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utils.c utils.h \
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vars.c vars.h \
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wins.c wins.h \
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mem.c mem.h
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mem.c mem.h \
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dmon.c dmon.h
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LDADD= @LTLIBINTL@
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171
src/dmon.c
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171
src/dmon.c
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/* $calcurse: dmon.c,v 1.1 2009/07/20 19:44:04 culot Exp $ */
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/*
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* Calcurse - text-based organizer
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*
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* Copyright (c) 2009 Frederic Culot <frederic@culot.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the
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* following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the
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* following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Send your feedback or comments to : calcurse@culot.org
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* Calcurse home page : http://culot.org/calcurse
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*
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <paths.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <string.h>
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#include "utils.h"
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#include "i18n.h"
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#include "sigs.h"
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#include "mem.h"
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#include "io.h"
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#include "custom.h"
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#include "notify.h"
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#include "dmon.h"
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#define DMON_SLEEP_TIME 60
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static void
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dmon_sigs_hdlr (int sig)
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{
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notify_free_app ();
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exit (EXIT_SUCCESS);
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}
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static unsigned
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daemonize (int status)
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{
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int fd;
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/*
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* Operate in the background: Daemonizing.
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*
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* First need to fork in order to become a child of the init process,
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* once the father exits.
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*/
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switch (fork ())
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{
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case -1: /* fork error */
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ERROR_MSG (_("Could not fork: %s\n"), strerror (errno));
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return 0;
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break;
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case 0: /* child */
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break;
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default: /* parent */
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exit (status);
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}
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/*
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* Process independency.
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*
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* Obtain a new process group and session in order to get detached from the
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* controlling terminal.
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*/
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if (setsid () == -1)
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{
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ERROR_MSG (_("Could not detach from the controlling terminal: %s\n"),
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strerror (errno));
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return 0;
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}
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/*
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* Change working directory to root directory,
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* to prevent filesystem unmounts.
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*/
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if (chdir ("/") == -1)
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{
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ERROR_MSG (_("Could not change working directory: %s\n"),
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strerror (errno));
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return 0;
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}
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/* Redirect standard file descriptors to /dev/null. */
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if ((fd = open (_PATH_DEVNULL, O_RDWR, 0)) != -1)
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{
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(void)dup2 (fd, STDIN_FILENO);
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(void)dup2 (fd, STDOUT_FILENO);
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(void)dup2 (fd, STDERR_FILENO);
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if (fd > 2)
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(void)close (fd);
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}
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/* Write access for the owner only. */
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(void)umask (0022);
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if (!sigs_set_hdlr (SIGINT, dmon_sigs_hdlr)
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|| !sigs_set_hdlr (SIGTERM, dmon_sigs_hdlr)
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|| !sigs_set_hdlr (SIGALRM, dmon_sigs_hdlr)
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|| !sigs_set_hdlr (SIGQUIT, dmon_sigs_hdlr)
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|| !sigs_set_hdlr (SIGCHLD, SIG_IGN))
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return 0;
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return 1;
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}
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void
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dmon_start (int parent_exit_status)
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{
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conf_t conf;
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if (!daemonize (parent_exit_status))
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EXIT (_("Cannot daemonize, aborting\n"));
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io_check_file (path_conf, (int *)0);
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custom_load_conf (&conf, 0);
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io_check_file (path_apts, (int *)0);
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io_load_app ();
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for (;;)
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{
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struct notify_app_s next;
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(void)notify_get_next (&next);
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if (next.got_app)
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{
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int left;
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notify_update_app (next.time, next.state, next.txt);
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left = notify_time_left ();
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if (left < nbar.cntdwn)
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notify_launch_cmd ();
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}
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if (next.txt)
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mem_free (next.txt);
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psleep (DMON_SLEEP_TIME);
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}
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}
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44
src/dmon.h
Normal file
44
src/dmon.h
Normal file
@ -0,0 +1,44 @@
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/* $calcurse: dmon.h,v 1.1 2009/07/20 19:44:04 culot Exp $ */
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/*
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* Calcurse - text-based organizer
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*
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* Copyright (c) 2009 Frederic Culot <frederic@culot.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the
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* following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the
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* following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Send your feedback or comments to : calcurse@culot.org
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* Calcurse home page : http://culot.org/calcurse
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*
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*/
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#ifndef CALCURSE_DMON_H
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#define CALCURSE_DMON_H
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void dmon_start (int);
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#endif /* CALCURSE_DMON_H */
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