static pa_strlist *prepend_per_user(pa_strlist *l) {
char *ufn;
#ifdef ENABLE_LEGACY_RUNTIME_DIR
char *legacy_dir;
/* The very old per-user instance path (< 0.9.11). This is supported only to ease upgrades */
if ((legacy_dir = get_very_old_legacy_runtime_dir())) {
char *p = pa_sprintf_malloc("%s" PA_PATH_SEP PA_NATIVE_DEFAULT_UNIX_SOCKET, legacy_dir);
l = pa_strlist_prepend(l, p);
pa_xfree(p);
pa_xfree(legacy_dir);
}
/* The old per-user instance path (< 0.9.12). This is supported only to ease upgrades */
if ((legacy_dir = get_old_legacy_runtime_dir())) {
char *p = pa_sprintf_malloc("%s" PA_PATH_SEP PA_NATIVE_DEFAULT_UNIX_SOCKET, legacy_dir);
l = pa_strlist_prepend(l, p);
pa_xfree(p);
pa_xfree(legacy_dir);
}
#endif
/* The per-user instance */
if ((ufn = pa_runtime_path(PA_NATIVE_DEFAULT_UNIX_SOCKET))) {
l = pa_strlist_prepend(l, ufn);
pa_xfree(ufn);
}
return l;
}
static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *message, void *userdata) {
pa_context *c = userdata;
pa_bool_t is_session;
pa_assert(bus);
pa_assert(message);
pa_assert(c);
if (c->state != PA_CONTEXT_CONNECTING)
goto finish;
if (!c->no_fail)
goto finish;
/* FIXME: We probably should check if this is actually the NameOwnerChanged we were looking for */
is_session = c->session_bus && bus == pa_dbus_wrap_connection_get(c->session_bus);
pa_log_debug("Rock!! PulseAudio might be back on %s bus", is_session ? "session" : "system");
if (is_session)
/* The user instance via PF_LOCAL */
c->server_list = prepend_per_user(c->server_list);
else
/* The system wide instance via PF_LOCAL */
c->server_list = pa_strlist_prepend(c->server_list, PA_SYSTEM_RUNTIME_PATH PA_PATH_SEP PA_NATIVE_DEFAULT_UNIX_SOCKET);
if (!c->client)
try_next_connection(c);
finish:
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
static pa_strlist *prepend_per_user(pa_strlist *l) {
char *ufn;
/* The per-user instance */
if ((ufn = pa_runtime_path(PA_NATIVE_DEFAULT_UNIX_SOCKET))) {
l = pa_strlist_prepend(l, ufn);
pa_xfree(ufn);
}
return l;
}
int main(PA_GCC_UNUSED int argc, PA_GCC_UNUSED char* argv[]) {
char *t, *u;
pa_strlist *l = NULL;
l = pa_strlist_prepend(l, "e");
l = pa_strlist_prepend(l, "d");
l = pa_strlist_prepend(l, "c");
l = pa_strlist_prepend(l, "b");
l = pa_strlist_prepend(l, "a");
t = pa_strlist_tostring(l);
pa_strlist_free(l);
fprintf(stderr, "1: %s\n", t);
l = pa_strlist_parse(t);
pa_xfree(t);
t = pa_strlist_tostring(l);
fprintf(stderr, "2: %s\n", t);
pa_xfree(t);
l = pa_strlist_pop(l, &u);
fprintf(stderr, "3: %s\n", u);
pa_xfree(u);
l = pa_strlist_remove(l, "c");
t = pa_strlist_tostring(l);
fprintf(stderr, "4: %s\n", t);
pa_xfree(t);
pa_strlist_free(l);
return 0;
}
int pa_context_connect(
pa_context *c,
const char *server,
pa_context_flags_t flags,
const pa_spawn_api *api) {
int r = -1;
pa_assert(c);
pa_assert(PA_REFCNT_VALUE(c) >= 1);
PA_CHECK_VALIDITY(c, !pa_detect_fork(), PA_ERR_FORKED);
PA_CHECK_VALIDITY(c, c->state == PA_CONTEXT_UNCONNECTED, PA_ERR_BADSTATE);
PA_CHECK_VALIDITY(c, !(flags & ~(PA_CONTEXT_NOAUTOSPAWN|PA_CONTEXT_NOFAIL)), PA_ERR_INVALID);
PA_CHECK_VALIDITY(c, !server || *server, PA_ERR_INVALID);
if (server)
c->conf->autospawn = FALSE;
else
server = c->conf->default_server;
pa_context_ref(c);
c->no_fail = !!(flags & PA_CONTEXT_NOFAIL);
c->server_specified = !!server;
pa_assert(!c->server_list);
if (server) {
if (!(c->server_list = pa_strlist_parse(server))) {
pa_context_fail(c, PA_ERR_INVALIDSERVER);
goto finish;
}
} else {
char *d;
/* Prepend in reverse order */
/* Follow the X display */
if (c->conf->auto_connect_display) {
if ((d = getenv("DISPLAY"))) {
d = pa_xstrndup(d, strcspn(d, ":"));
if (*d)
c->server_list = pa_strlist_prepend(c->server_list, d);
pa_xfree(d);
}
}
/* Add TCP/IP on the localhost */
if (c->conf->auto_connect_localhost) {
c->server_list = pa_strlist_prepend(c->server_list, "tcp6:[::1]");
c->server_list = pa_strlist_prepend(c->server_list, "tcp4:127.0.0.1");
}
/* The system wide instance via PF_LOCAL */
c->server_list = pa_strlist_prepend(c->server_list, PA_SYSTEM_RUNTIME_PATH PA_PATH_SEP PA_NATIVE_DEFAULT_UNIX_SOCKET);
/* The user instance via PF_LOCAL */
c->server_list = prepend_per_user(c->server_list);
}
/* Set up autospawning */
if (!(flags & PA_CONTEXT_NOAUTOSPAWN) && c->conf->autospawn) {
#ifdef HAVE_GETUID
if (getuid() == 0)
pa_log_debug("Not doing autospawn since we are root.");
else {
c->do_autospawn = TRUE;
if (api)
c->spawn_api = *api;
}
#endif
}
pa_context_set_state(c, PA_CONTEXT_CONNECTING);
r = try_next_connection(c);
finish:
pa_context_unref(c);
return r;
}
