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-rw-r--r--src/modules/x11/module-x11-xsmp.c266
1 files changed, 266 insertions, 0 deletions
diff --git a/src/modules/x11/module-x11-xsmp.c b/src/modules/x11/module-x11-xsmp.c
new file mode 100644
index 0000000..459da13
--- /dev/null
+++ b/src/modules/x11/module-x11-xsmp.c
@@ -0,0 +1,266 @@
+/***
+ This file is part of PulseAudio.
+
+ Copyright 2004-2006 Lennart Poettering
+
+ PulseAudio is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of the License,
+ or (at your option) any later version.
+
+ PulseAudio 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 Lesser General Public License
+ along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <X11/Xlib.h>
+#include <X11/SM/SMlib.h>
+
+#include <pulse/xmalloc.h>
+#include <pulse/util.h>
+
+#include <pulsecore/modargs.h>
+#include <pulsecore/log.h>
+#include <pulsecore/x11wrap.h>
+
+PA_MODULE_AUTHOR("Lennart Poettering");
+PA_MODULE_DESCRIPTION("X11 session management");
+PA_MODULE_VERSION(PACKAGE_VERSION);
+PA_MODULE_LOAD_ONCE(false);
+PA_MODULE_USAGE("session_manager=<session manager string> display=<X11 display>");
+
+static bool ice_in_use = false;
+
+static const char* const valid_modargs[] = {
+ "session_manager",
+ "display",
+ "xauthority",
+ NULL
+};
+
+struct userdata {
+ pa_core *core;
+ pa_module *module;
+ pa_client *client;
+ SmcConn connection;
+ pa_x11_wrapper *x11;
+};
+
+static void die_cb(SmcConn connection, SmPointer client_data) {
+ struct userdata *u = client_data;
+ pa_assert(u);
+
+ pa_log_debug("Got die message from XSMP.");
+
+ pa_x11_wrapper_kill(u->x11);
+
+ pa_x11_wrapper_unref(u->x11);
+ u->x11 = NULL;
+
+ pa_module_unload_request(u->module, true);
+}
+
+static void save_complete_cb(SmcConn connection, SmPointer client_data) {
+}
+
+static void shutdown_cancelled_cb(SmcConn connection, SmPointer client_data) {
+ SmcSaveYourselfDone(connection, True);
+}
+
+static void save_yourself_cb(SmcConn connection, SmPointer client_data, int save_type, Bool _shutdown, int interact_style, Bool fast) {
+ SmcSaveYourselfDone(connection, True);
+}
+
+static void ice_io_cb(pa_mainloop_api*a, pa_io_event *e, int fd, pa_io_event_flags_t flags, void *userdata) {
+ IceConn connection = userdata;
+
+ if (IceProcessMessages(connection, NULL, NULL) == IceProcessMessagesIOError) {
+ IceSetShutdownNegotiation(connection, False);
+ IceCloseConnection(connection);
+ }
+}
+
+static void new_ice_connection(IceConn connection, IcePointer client_data, Bool opening, IcePointer *watch_data) {
+ pa_core *c = client_data;
+
+ if (opening)
+ *watch_data = c->mainloop->io_new(
+ c->mainloop,
+ IceConnectionNumber(connection),
+ PA_IO_EVENT_INPUT,
+ ice_io_cb,
+ connection);
+ else
+ c->mainloop->io_free(*watch_data);
+}
+
+int pa__init(pa_module*m) {
+
+ pa_modargs *ma = NULL;
+ char t[256], *vendor, *client_id;
+ SmcCallbacks callbacks;
+ SmProp prop_program, prop_user;
+ SmProp *prop_list[2];
+ SmPropValue val_program, val_user;
+ struct userdata *u;
+ const char *e;
+ pa_client_new_data data;
+
+ pa_assert(m);
+
+ if (ice_in_use) {
+ pa_log("module-x11-xsmp may not be loaded twice.");
+ return -1;
+ }
+
+ IceAddConnectionWatch(new_ice_connection, m->core);
+ ice_in_use = true;
+
+ m->userdata = u = pa_xnew(struct userdata, 1);
+ u->core = m->core;
+ u->module = m;
+ u->client = NULL;
+ u->connection = NULL;
+ u->x11 = NULL;
+
+ if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
+ pa_log("Failed to parse module arguments");
+ goto fail;
+ }
+
+ if (pa_modargs_get_value(ma, "xauthority", NULL)) {
+ if (setenv("XAUTHORITY", pa_modargs_get_value(ma, "xauthority", NULL), 1)) {
+ pa_log("setenv() for $XAUTHORITY failed");
+ goto fail;
+ }
+ }
+
+ if (!(u->x11 = pa_x11_wrapper_get(m->core, pa_modargs_get_value(ma, "display", NULL))))
+ goto fail;
+
+ e = pa_modargs_get_value(ma, "session_manager", NULL);
+
+ if (!e && !getenv("SESSION_MANAGER")) {
+ pa_log("X11 session manager not running.");
+ goto fail;
+ }
+
+ memset(&callbacks, 0, sizeof(callbacks));
+ callbacks.die.callback = die_cb;
+ callbacks.die.client_data = u;
+ callbacks.save_yourself.callback = save_yourself_cb;
+ callbacks.save_yourself.client_data = m->core;
+ callbacks.save_complete.callback = save_complete_cb;
+ callbacks.save_complete.client_data = m->core;
+ callbacks.shutdown_cancelled.callback = shutdown_cancelled_cb;
+ callbacks.shutdown_cancelled.client_data = m->core;
+
+ if (!(u->connection = SmcOpenConnection(
+ (char*) e, m->core,
+ SmProtoMajor, SmProtoMinor,
+ SmcSaveYourselfProcMask | SmcDieProcMask | SmcSaveCompleteProcMask | SmcShutdownCancelledProcMask,
+ &callbacks, NULL, &client_id,
+ sizeof(t), t))) {
+
+ pa_log("Failed to open connection to session manager: %s", t);
+ goto fail;
+ }
+
+ prop_program.name = (char*) SmProgram;
+ prop_program.type = (char*) SmARRAY8;
+ val_program.value = (char*) PACKAGE_NAME;
+ val_program.length = (int) strlen(val_program.value);
+ prop_program.num_vals = 1;
+ prop_program.vals = &val_program;
+ prop_list[0] = &prop_program;
+
+ prop_user.name = (char*) SmUserID;
+ prop_user.type = (char*) SmARRAY8;
+ pa_get_user_name(t, sizeof(t));
+ val_user.value = t;
+ val_user.length = (int) strlen(val_user.value);
+ prop_user.num_vals = 1;
+ prop_user.vals = &val_user;
+ prop_list[1] = &prop_user;
+
+ SmcSetProperties(u->connection, PA_ELEMENTSOF(prop_list), prop_list);
+
+ pa_log_info("Connected to session manager '%s' as '%s'.", vendor = SmcVendor(u->connection), client_id);
+
+ pa_client_new_data_init(&data);
+ data.module = m;
+ data.driver = __FILE__;
+ pa_proplist_setf(data.proplist, PA_PROP_APPLICATION_NAME, "XSMP Session on %s as %s", vendor, client_id);
+ pa_proplist_sets(data.proplist, "xsmp.vendor", vendor);
+ pa_proplist_sets(data.proplist, "xsmp.client.id", client_id);
+ u->client = pa_client_new(u->core, &data);
+ pa_client_new_data_done(&data);
+
+ free(vendor);
+ free(client_id);
+
+ if (!u->client)
+ goto fail;
+
+ /* Positive exit_idle_time is only useful when we have no session tracking
+ * capability, so we can set it to 0 now that we have detected a session.
+ * The benefit of setting exit_idle_time to 0 is that pulseaudio will exit
+ * immediately when the session ends. That in turn is useful, because some
+ * systems (those that use pam_systemd but don't use systemd for managing
+ * pulseaudio) clean $XDG_RUNTIME_DIR on logout, but fail to terminate all
+ * services that depend on the files in $XDG_RUNTIME_DIR. The directory
+ * contains our sockets, and if the sockets are removed without terminating
+ * pulseaudio, a quick relogin will likely cause trouble, because a new
+ * instance will be spawned while the old instance is still running. */
+ if (u->core->exit_idle_time > 0)
+ pa_core_set_exit_idle_time(u->core, 0);
+
+ pa_modargs_free(ma);
+
+ return 0;
+
+fail:
+ if (ma)
+ pa_modargs_free(ma);
+
+ pa__done(m);
+
+ return -1;
+}
+
+void pa__done(pa_module*m) {
+ struct userdata *u;
+
+ pa_assert(m);
+
+ if ((u = m->userdata)) {
+
+ if (u->connection)
+ SmcCloseConnection(u->connection, 0, NULL);
+
+ if (u->client)
+ pa_client_free(u->client);
+
+ if (u->x11)
+ pa_x11_wrapper_unref(u->x11);
+
+ pa_xfree(u);
+ }
+
+ if (ice_in_use) {
+ IceRemoveConnectionWatch(new_ice_connection, m->core);
+ ice_in_use = false;
+ }
+}
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