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/***
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, 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 <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/iochannel.h>
#include <pulsecore/sink.h>
#include <pulsecore/core-scache.h>
#include <pulsecore/modargs.h>
#include <pulsecore/namereg.h>
#include <pulsecore/log.h>
#include <pulsecore/core-util.h>
#include <pulsecore/x11wrap.h>
#include "module-x11-xsmp-symdef.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 pa_bool_t ice_in_use = FALSE;
static const char* const valid_modargs[] = {
"session_manager",
"display",
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) {
struct 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 (!(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;
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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