static dbus_bool_t
init_session_address (void)
{
dbus_bool_t retval;
retval = FALSE;
/* First, look in the environment. This is the normal case on
* freedesktop.org/Unix systems. */
get_from_env (&bus_connection_addresses[DBUS_BUS_SESSION],
"DBUS_SESSION_BUS_ADDRESS");
if (bus_connection_addresses[DBUS_BUS_SESSION] == NULL)
{
dbus_bool_t supported;
DBusString addr;
DBusError error = DBUS_ERROR_INIT;
if (!_dbus_string_init (&addr))
return FALSE;
supported = FALSE;
/* So it's not in the environment - let's try a platform-specific method.
* On MacOS, this involves asking launchd. On Windows (not specified yet)
* we might do a COM lookup.
* Ignore errors - if we failed, fall back to autolaunch. */
retval = _dbus_lookup_session_address (&supported, &addr, &error);
if (supported && retval)
{
retval =_dbus_string_steal_data (&addr, &bus_connection_addresses[DBUS_BUS_SESSION]);
}
else if (supported && !retval)
{
if (dbus_error_is_set(&error))
_dbus_warn ("Dynamic session lookup supported but failed: %s\n", error.message);
else
_dbus_warn ("Dynamic session lookup supported but failed silently\n");
}
_dbus_string_free (&addr);
}
else
retval = TRUE;
if (!retval)
return FALSE;
/* The DBUS_SESSION_BUS_DEFAULT_ADDRESS should have really been named
* DBUS_SESSION_BUS_FALLBACK_ADDRESS.
*/
if (bus_connection_addresses[DBUS_BUS_SESSION] == NULL)
bus_connection_addresses[DBUS_BUS_SESSION] =
_dbus_strdup (DBUS_SESSION_BUS_DEFAULT_ADDRESS);
if (bus_connection_addresses[DBUS_BUS_SESSION] == NULL)
return FALSE;
return TRUE;
}
int factor(){
int t,t1,off;
float r;
id var;
t = temp++;
switch(look->tag){
case '(':
move();
t1 = boolean();
match(')');
gen("t%d = t%d\n",t,t1);
return t;
case NUM:
t1 = look->detail.num;
gen("t%d = %d\n",t,t1);
move();
return t;
case REAL:
r = look->detail.real;
gen("t%d = %f\n",t,r);
move();
return t;
case TRUE:
gen("t%d = true\n",t);
move();
return t;
case FALSE:
gen("t%d = false\n",t);
move();
return t;
case ID:
var = get_from_env(top,look);
if(var == NULL)
error("undeclared var in factor");
move();
if(look->tag != '['){
gen("t%d = %s\n",t,var->name);
}
else{
off = offset(var);
gen("t%d = %s",off,var->name);
}
return t;
default:
error("syntax error");
}
}
void assign(){
int tmp,off;
token t = look;
match(ID);
id i = get_from_env(top,t);
if(i == NULL)
error("undeclared variable in assign");
if(look->tag == '='){
move();
tmp = boolean();
gen("%s = t%d\n",t->detail.word,tmp);
}else{
off = offset(i);
match('=');
tmp = boolean();
gen("t%d = t%d\n",off,tmp);
}
match(';');
}
static dbus_bool_t
init_connections_unlocked (void)
{
if (!initialized)
{
const char *s;
int i;
i = 0;
while (i < N_BUS_TYPES)
{
bus_connections[i] = NULL;
++i;
}
/* Don't init these twice, we may run this code twice if
* init_connections_unlocked() fails midway through.
* In practice, each block below should contain only one
* "return FALSE" or running through twice may not
* work right.
*/
if (bus_connection_addresses[DBUS_BUS_SYSTEM] == NULL)
{
_dbus_verbose ("Filling in system bus address...\n");
if (!get_from_env (&bus_connection_addresses[DBUS_BUS_SYSTEM],
"DBUS_SYSTEM_BUS_ADDRESS"))
return FALSE;
}
if (bus_connection_addresses[DBUS_BUS_SYSTEM] == NULL)
{
/* Use default system bus address if none set in environment */
bus_connection_addresses[DBUS_BUS_SYSTEM] =
_dbus_strdup (DBUS_SYSTEM_BUS_DEFAULT_ADDRESS);
if (bus_connection_addresses[DBUS_BUS_SYSTEM] == NULL)
return FALSE;
_dbus_verbose (" used default system bus \"%s\"\n",
bus_connection_addresses[DBUS_BUS_SYSTEM]);
}
else
_dbus_verbose (" used env var system bus \"%s\"\n",
bus_connection_addresses[DBUS_BUS_SYSTEM]);
if (bus_connection_addresses[DBUS_BUS_SESSION] == NULL)
{
_dbus_verbose ("Filling in session bus address...\n");
if (!get_from_env (&bus_connection_addresses[DBUS_BUS_SESSION],
"DBUS_SESSION_BUS_ADDRESS"))
return FALSE;
if (bus_connection_addresses[DBUS_BUS_SESSION] == NULL)
bus_connection_addresses[DBUS_BUS_SESSION] =
_dbus_strdup (DBUS_SESSION_BUS_DEFAULT_ADDRESS);
if (bus_connection_addresses[DBUS_BUS_SESSION] == NULL)
return FALSE;
_dbus_verbose (" \"%s\"\n", bus_connection_addresses[DBUS_BUS_SESSION] ?
bus_connection_addresses[DBUS_BUS_SESSION] : "none set");
}
if (bus_connection_addresses[DBUS_BUS_STARTER] == NULL)
{
_dbus_verbose ("Filling in activation bus address...\n");
if (!get_from_env (&bus_connection_addresses[DBUS_BUS_STARTER],
"DBUS_STARTER_ADDRESS"))
return FALSE;
_dbus_verbose (" \"%s\"\n", bus_connection_addresses[DBUS_BUS_STARTER] ?
bus_connection_addresses[DBUS_BUS_STARTER] : "none set");
}
if (bus_connection_addresses[DBUS_BUS_STARTER] != NULL)
{
s = _dbus_getenv ("DBUS_STARTER_BUS_TYPE");
if (s != NULL)
{
_dbus_verbose ("Bus activation type was set to \"%s\"\n", s);
if (strcmp (s, "system") == 0)
activation_bus_type = DBUS_BUS_SYSTEM;
else if (strcmp (s, "session") == 0)
activation_bus_type = DBUS_BUS_SESSION;
}
}
else
{
/* Default to the session bus instead if available */
if (bus_connection_addresses[DBUS_BUS_SESSION] != NULL)
{
bus_connection_addresses[DBUS_BUS_STARTER] =
_dbus_strdup (bus_connection_addresses[DBUS_BUS_SESSION]);
if (bus_connection_addresses[DBUS_BUS_STARTER] == NULL)
return FALSE;
}
}
/* If we return FALSE we have to be sure that restarting
* the above code will work right
*/
if (!_dbus_setenv ("DBUS_ACTIVATION_ADDRESS", NULL))
return FALSE;
if (!_dbus_setenv ("DBUS_ACTIVATION_BUS_TYPE", NULL))
return FALSE;
if (!_dbus_register_shutdown_func (addresses_shutdown_func,
NULL))
return FALSE;
initialized = TRUE;
}
return initialized;
}
