diff options
Diffstat (limited to 'src/dmon.c')
| -rw-r--r-- | src/dmon.c | 233 |
1 files changed, 120 insertions, 113 deletions
@@ -66,124 +66,130 @@ static unsigned data_loaded; static void dmon_sigs_hdlr(int sig) { - if (data_loaded) - free_user_data(); + if (data_loaded) + free_user_data(); - DMON_LOG(_("terminated at %s with signal %d\n"), nowstr(), sig); + DMON_LOG(_("terminated at %s with signal %d\n"), nowstr(), sig); - if (unlink(path_dpid) != 0) { - DMON_LOG(_("Could not remove daemon lock file: %s\n"), strerror(errno)); - exit(EXIT_FAILURE); - } + if (unlink(path_dpid) != 0) { + DMON_LOG(_("Could not remove daemon lock file: %s\n"), + strerror(errno)); + exit(EXIT_FAILURE); + } - exit(EXIT_SUCCESS); + exit(EXIT_SUCCESS); } static unsigned daemonize(int status) { - int fd; - - /* - * Operate in the background: Daemonizing. - * - * First need to fork in order to become a child of the init process, - * once the father exits. - */ - switch (fork()) { - case -1: /* fork error */ - EXIT(_("Could not fork: %s\n"), strerror(errno)); - break; - case 0: /* child */ - break; - default: /* parent */ - exit(status); - } - - /* - * Process independency. - * - * Obtain a new process group and session in order to get detached from the - * controlling terminal. - */ - if (setsid() == -1) { - DMON_LOG(_("Could not detach from the controlling terminal: %s\n"), - strerror(errno)); - return 0; - } - - /* - * Change working directory to root directory, - * to prevent filesystem unmounts. - */ - if (chdir("/") == -1) { - DMON_LOG(_("Could not change working directory: %s\n"), strerror(errno)); - return 0; - } - - /* Redirect standard file descriptors to /dev/null. */ - if ((fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) { - dup2(fd, STDIN_FILENO); - dup2(fd, STDOUT_FILENO); - dup2(fd, STDERR_FILENO); - if (fd > 2) - close(fd); - } - - /* Write access for the owner only. */ - umask(0022); - - if (!sigs_set_hdlr(SIGINT, dmon_sigs_hdlr) - || !sigs_set_hdlr(SIGTERM, dmon_sigs_hdlr) - || !sigs_set_hdlr(SIGALRM, dmon_sigs_hdlr) - || !sigs_set_hdlr(SIGQUIT, dmon_sigs_hdlr) - || !sigs_set_hdlr(SIGCHLD, SIG_IGN)) - return 0; - - return 1; + int fd; + + /* + * Operate in the background: Daemonizing. + * + * First need to fork in order to become a child of the init process, + * once the father exits. + */ + switch (fork()) { + case -1: /* fork error */ + EXIT(_("Could not fork: %s\n"), strerror(errno)); + break; + case 0: /* child */ + break; + default: /* parent */ + exit(status); + } + + /* + * Process independency. + * + * Obtain a new process group and session in order to get detached from the + * controlling terminal. + */ + if (setsid() == -1) { + DMON_LOG(_("Could not detach from the controlling terminal: %s\n"), + strerror(errno)); + return 0; + } + + /* + * Change working directory to root directory, + * to prevent filesystem unmounts. + */ + if (chdir("/") == -1) { + DMON_LOG(_("Could not change working directory: %s\n"), + strerror(errno)); + return 0; + } + + /* Redirect standard file descriptors to /dev/null. */ + if ((fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) { + dup2(fd, STDIN_FILENO); + dup2(fd, STDOUT_FILENO); + dup2(fd, STDERR_FILENO); + if (fd > 2) + close(fd); + } + + /* Write access for the owner only. */ + umask(0022); + + if (!sigs_set_hdlr(SIGINT, dmon_sigs_hdlr) + || !sigs_set_hdlr(SIGTERM, dmon_sigs_hdlr) + || !sigs_set_hdlr(SIGALRM, dmon_sigs_hdlr) + || !sigs_set_hdlr(SIGQUIT, dmon_sigs_hdlr) + || !sigs_set_hdlr(SIGCHLD, SIG_IGN)) + return 0; + + return 1; } void dmon_start(int parent_exit_status) { - if (!daemonize(parent_exit_status)) - DMON_ABRT(_("Cannot daemonize, aborting\n")); - - if (!io_dump_pid(path_dpid)) - DMON_ABRT(_("Could not set lock file\n")); - - if (!io_file_exist(path_conf)) - DMON_ABRT(_("Could not access \"%s\": %s\n"), path_conf, strerror(errno)); - config_load(); - - if (!io_file_exist(path_apts)) - DMON_ABRT(_("Could not access \"%s\": %s\n"), path_apts, strerror(errno)); - apoint_llist_init(); - recur_apoint_llist_init(); - event_llist_init(); - todo_init_list(); - io_load_app(); - data_loaded = 1; - - DMON_LOG(_("started at %s\n"), nowstr()); - for (;;) { - int left; - - if (!notify_get_next_bkgd()) - DMON_ABRT(_("error loading next appointment\n")); - - left = notify_time_left(); - if (left > 0 && left < nbar.cntdwn && notify_needs_reminder()) { - DMON_LOG(_("launching notification at %s for: \"%s\"\n"), - nowstr(), notify_app_txt()); - if (!notify_launch_cmd()) - DMON_LOG(_("error while sending notification\n")); - } - - DMON_LOG(ngettext("sleeping at %s for %d second\n", - "sleeping at %s for %d seconds\n", - DMON_SLEEP_TIME), nowstr(), DMON_SLEEP_TIME); - psleep(DMON_SLEEP_TIME); - DMON_LOG(_("awakened at %s\n"), nowstr()); - } + if (!daemonize(parent_exit_status)) + DMON_ABRT(_("Cannot daemonize, aborting\n")); + + if (!io_dump_pid(path_dpid)) + DMON_ABRT(_("Could not set lock file\n")); + + if (!io_file_exist(path_conf)) + DMON_ABRT(_("Could not access \"%s\": %s\n"), path_conf, + strerror(errno)); + config_load(); + + if (!io_file_exist(path_apts)) + DMON_ABRT(_("Could not access \"%s\": %s\n"), path_apts, + strerror(errno)); + apoint_llist_init(); + recur_apoint_llist_init(); + event_llist_init(); + todo_init_list(); + io_load_app(); + data_loaded = 1; + + DMON_LOG(_("started at %s\n"), nowstr()); + for (;;) { + int left; + + if (!notify_get_next_bkgd()) + DMON_ABRT(_("error loading next appointment\n")); + + left = notify_time_left(); + if (left > 0 && left < nbar.cntdwn + && notify_needs_reminder()) { + DMON_LOG(_("launching notification at %s for: \"%s\"\n"), + nowstr(), notify_app_txt()); + if (!notify_launch_cmd()) + DMON_LOG(_("error while sending notification\n")); + } + + DMON_LOG(ngettext("sleeping at %s for %d second\n", + "sleeping at %s for %d seconds\n", + DMON_SLEEP_TIME), nowstr(), + DMON_SLEEP_TIME); + psleep(DMON_SLEEP_TIME); + DMON_LOG(_("awakened at %s\n"), nowstr()); + } } /* @@ -192,12 +198,13 @@ void dmon_start(int parent_exit_status) */ void dmon_stop(void) { - int dpid; + int dpid; - dpid = io_get_pid(path_dpid); - if (!dpid) - return; + dpid = io_get_pid(path_dpid); + if (!dpid) + return; - if (kill((pid_t) dpid, SIGINT) < 0 && errno != ESRCH) - EXIT(_("Could not stop calcurse daemon: %s\n"), strerror(errno)); + if (kill((pid_t) dpid, SIGINT) < 0 && errno != ESRCH) + EXIT(_("Could not stop calcurse daemon: %s\n"), + strerror(errno)); } |