diff options
Diffstat (limited to 'tools/gnome-session-inhibit.c')
| -rw-r--r-- | tools/gnome-session-inhibit.c | 411 |
1 files changed, 411 insertions, 0 deletions
diff --git a/tools/gnome-session-inhibit.c b/tools/gnome-session-inhibit.c new file mode 100644 index 0000000..738a9b4 --- /dev/null +++ b/tools/gnome-session-inhibit.c @@ -0,0 +1,411 @@ +/* + * Copyright (C) 2012 Red Hat, Inc. + * + * This program 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, or (at your option) + * any later version. + * + * This program 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 this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <sys/types.h> +#include <sys/wait.h> +#include <unistd.h> +#include <stdlib.h> +#include <string.h> +#include <stdint.h> +#include <locale.h> + +#include <glib.h> +#include <glib/gi18n.h> +#include <gio/gio.h> + +#include "gnome-session/gsm-inhibitor-flag.h" + +static GsmInhibitorFlag parse_flags (const gchar *arg) +{ + GsmInhibitorFlag flags; + gchar **args; + gint i; + + flags = 0; + + args = g_strsplit (arg, ":", 0); + for (i = 0; args[i]; i++) + { + if (strcmp (args[i], "logout") == 0) + flags |= GSM_INHIBITOR_FLAG_LOGOUT; + else if (strcmp (args[i], "switch-user") == 0) + flags |= GSM_INHIBITOR_FLAG_SWITCH_USER; + else if (strcmp (args[i], "suspend") == 0) + flags |= GSM_INHIBITOR_FLAG_SUSPEND; + else if (strcmp (args[i], "idle") == 0) + flags |= GSM_INHIBITOR_FLAG_IDLE; + else if (strcmp (args[i], "automount") == 0) + flags |= GSM_INHIBITOR_FLAG_AUTOMOUNT; + else + g_print ("Ignoring inhibit argument: %s\n", args[i]); + } + + g_strfreev (args); + + return flags; +} + +static gboolean inhibit (const gchar *app_id, + const gchar *reason, + GsmInhibitorFlag flags) +{ + GDBusConnection *bus; + GVariant *ret; + GError *error = NULL; + + bus = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error); + + if (bus == NULL) + { + g_warning ("Failed to connect to session bus: %s", error->message); + g_error_free (error); + return FALSE; + } + + ret = g_dbus_connection_call_sync (bus, + "org.gnome.SessionManager", + "/org/gnome/SessionManager", + "org.gnome.SessionManager", + "Inhibit", + g_variant_new ("(susu)", + app_id, 0, reason, flags), + G_VARIANT_TYPE ("(u)"), + 0, + G_MAXINT, + NULL, + &error); + + if (ret == NULL) + { + g_warning ("Failed to call Inhibit: %s\n", error->message); + g_error_free (error); + return FALSE; + } + + g_variant_unref (ret); + + return TRUE; +} + +static void usage (void) +{ + g_print (_("%s [OPTION…] COMMAND\n" + "\n" + "Execute COMMAND while inhibiting some session functionality.\n" + "\n" + " -h, --help Show this help\n" + " --version Show program version\n" + " --app-id ID The application id to use\n" + " when inhibiting (optional)\n" + " --reason REASON The reason for inhibiting (optional)\n" + " --inhibit ARG Things to inhibit, colon-separated list of:\n" + " logout, switch-user, suspend, idle, automount\n" + " --inhibit-only Do not launch COMMAND and wait forever instead\n" + " -l, --list List the existing inhibitions, and exit\n" + "\n" + "If no --inhibit option is specified, idle is assumed.\n"), + g_get_prgname ()); +} + +static void version (void) +{ + g_print ("%s %s\n", g_get_prgname (), PACKAGE_VERSION); +} + +static GVariant * +get_inhibitor_prop (GDBusProxy *inhibitor, + const char *method_name) +{ + g_autoptr(GVariant) variant = NULL; + g_autoptr(GError) error = NULL; + + variant = g_dbus_proxy_call_sync (inhibitor, + method_name, + NULL, + G_DBUS_CALL_FLAGS_NONE, + -1, + NULL, + &error); + + if (variant == NULL) { + g_debug ("Failed to get property via '%s': %s", + method_name, error->message); + return NULL; + } + + return g_variant_get_child_value (variant, 0); +} + +static void +string_append_comma (GString *s, + const char *value) +{ + if (s->len != 0) + g_string_append (s, ", "); + g_string_append (s, value); +} + +static char * +flags_to_str (guint32 flags) +{ + GString *s; + + s = g_string_new (NULL); + if (flags & GSM_INHIBITOR_FLAG_LOGOUT) + string_append_comma (s, "logout"); + if (flags & GSM_INHIBITOR_FLAG_SWITCH_USER) + string_append_comma (s, "switch-user"); + if (flags & GSM_INHIBITOR_FLAG_SUSPEND) + string_append_comma (s, "suspend"); + if (flags & GSM_INHIBITOR_FLAG_IDLE) + string_append_comma (s, "idle"); + if (flags & GSM_INHIBITOR_FLAG_AUTOMOUNT) + string_append_comma (s, "automount"); + + return g_string_free (s, FALSE); +} + +static void list (void) +{ + g_autoptr(GDBusConnection) bus = NULL; + g_autoptr(GVariant) ret = NULL; + g_autoptr(GVariant) array = NULL; + g_autoptr(GError) error = NULL; + guint num_children; + g_autoptr(GVariantIter) iter = NULL; + const char *inhibitor_path; + + bus = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error); + + if (bus == NULL) + { + g_warning ("Failed to connect to session bus: %s", error->message); + g_error_free (error); + return; + } + + ret = g_dbus_connection_call_sync (bus, + "org.gnome.SessionManager", + "/org/gnome/SessionManager", + "org.gnome.SessionManager", + "GetInhibitors", + NULL, + NULL, + 0, + G_MAXINT, + NULL, + &error); + + if (ret == NULL) + { + g_warning ("Failed to call GetInhibitors: %s\n", error->message); + g_error_free (error); + return; + } + + array = g_variant_get_child_value (ret, 0); + + num_children = g_variant_n_children (array); + if (num_children == 0) + { + g_print ("No inhibitors\n"); + return; + } + + g_variant_get (array, "ao", &iter); + while (g_variant_iter_loop (iter, "&o", &inhibitor_path)) + { + g_autoptr(GDBusProxy) inhibitor = NULL; + g_autoptr(GVariant) app_id = NULL; + g_autoptr(GVariant) reason = NULL; + g_autoptr(GVariant) flags = NULL; + g_autofree char *flags_str = NULL; + + inhibitor = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION, + G_DBUS_PROXY_FLAGS_NONE, + NULL, + "org.gnome.SessionManager", + inhibitor_path, + "org.gnome.SessionManager.Inhibitor", + NULL, + &error); + + /* Skip inhibitors that might have disappeared */ + if (!inhibitor) + { + g_debug ("Failed to get proxy for %s: %s", + inhibitor_path, + error->message); + continue; + } + + app_id = get_inhibitor_prop (inhibitor, "GetAppId"); + reason = get_inhibitor_prop (inhibitor, "GetReason"); + flags = get_inhibitor_prop (inhibitor, "GetFlags"); + if (!app_id || !reason || !flags) + continue; + flags_str = flags_to_str (g_variant_get_uint32 (flags)); + + g_print ("%s: %s (%s)\n", + g_variant_get_string (app_id, NULL), + g_variant_get_string (reason, NULL), + flags_str); + } +} + +static void +wait_for_child_app (char **argv) +{ + pid_t pid; + int status; + + pid = fork (); + if (pid < 0) + { + g_print ("fork failed\n"); + exit (1); + } + + if (pid == 0) + { + execvp (*argv, argv); + g_print (_("Failed to execute %s\n"), *argv); + exit (1); + } + + do + { + if (waitpid (pid, &status, 0) == -1) + { + g_print ("waitpid failed\n"); + exit (1); + } + + if (WIFEXITED (status)) + exit (WEXITSTATUS (status)); + + } while (!WIFEXITED (status) && ! WIFSIGNALED(status)); +} + +static void +wait_forever (void) +{ + g_print ("Inhibiting until Ctrl+C is pressed...\n"); + while (1) + sleep (UINT32_MAX); +} + +int main (int argc, char *argv[]) +{ + gchar *prgname; + GsmInhibitorFlag inhibit_flags = 0; + gboolean show_help = FALSE; + gboolean show_version = FALSE; + gboolean show_list = FALSE; + gboolean no_launch = FALSE; + gint i; + const gchar *app_id = "unknown"; + const gchar *reason = "not specified"; + + prgname = g_path_get_basename (argv[0]); + g_set_prgname (prgname); + g_free (prgname); + + setlocale (LC_ALL, ""); + bindtextdomain (GETTEXT_PACKAGE, LOCALE_DIR); + bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8"); + textdomain (GETTEXT_PACKAGE); + + for (i = 1; i < argc; i++) + { + if (strcmp (argv[i], "--help") == 0 || + strcmp (argv[i], "-h") == 0) + show_help = TRUE; + if (strcmp (argv[i], "--list") == 0 || + strcmp (argv[i], "-l") == 0) + show_list = TRUE; + else if (strcmp (argv[i], "--version") == 0) + show_version = TRUE; + else if (strcmp (argv[i], "--inhibit-only") == 0) + no_launch = TRUE; + else if (strcmp (argv[i], "--app-id") == 0) + { + i++; + if (i == argc) + { + g_print (_("%s requires an argument\n"), argv[i]); + exit (1); + } + app_id = argv[i]; + } + else if (strcmp (argv[i], "--reason") == 0) + { + i++; + if (i == argc) + { + g_print (_("%s requires an argument\n"), argv[i]); + exit (1); + } + reason = argv[i]; + } + else if (strcmp (argv[i], "--inhibit") == 0) + { + i++; + if (i == argc) + { + g_print (_("%s requires an argument\n"), argv[i]); + exit (1); + } + inhibit_flags |= parse_flags (argv[i]); + } + else + break; + } + + if (show_version) + { + version (); + return 0; + } + + if (show_list) + { + list (); + return 0; + } + + if (show_help || (i == argc && !no_launch)) + { + usage (); + return 0; + } + + if (inhibit_flags == 0) + inhibit_flags = GSM_INHIBITOR_FLAG_IDLE; + + if (inhibit (app_id, reason, inhibit_flags) == FALSE) + return 1; + + if (!no_launch) + wait_for_child_app (argv + i); + else + wait_forever (); + + return 0; +} |