Files
wireplumber/modules/module-lua-scripting/api/api.c
Julian Bouzas 2223cd47d4 settings: use WpSpaJson to parse the settings
We need to use WpSpaJson to parse the values in WpSettings. This is because the
wireplumber configuration is written in JSON, so WpSettings should only hold
JSON values. To fix this, 2 API changes have been done:

- wp_settings_get_int() only accepts gint values, instead of gint64 values. This
is because the WpSpaJson API only parses int values, like spa_json_parse_int().

- wp_settings_get_string() now returns a newly allocated string, this is because
the string needs to be decoded in case it has quotes.
2023-04-17 07:47:09 -04:00

2154 lines
55 KiB
C

/* WirePlumber
*
* Copyright © 2020 Collabora Ltd.
* @author George Kiagiadakis <george.kiagiadakis@collabora.com>
*
* SPDX-License-Identifier: MIT
*/
#include <glib/gstdio.h>
#include <wp/wp.h>
#include <pipewire/pipewire.h>
#include <wplua/wplua.h>
#include <libintl.h>
#define URI_API "resource:///org/freedesktop/pipewire/wireplumber/m-lua-scripting/api.lua"
void wp_lua_scripting_pod_init (lua_State *L);
void wp_lua_scripting_json_init (lua_State *L);
/* helpers */
static WpCore *
get_wp_core (lua_State *L)
{
WpCore *core = NULL;
lua_pushliteral (L, "wireplumber_core");
lua_gettable (L, LUA_REGISTRYINDEX);
core = lua_touserdata (L, -1);
lua_pop (L, 1);
return core;
}
static WpCore *
get_wp_export_core (lua_State *L)
{
WpCore *core = NULL;
lua_pushliteral (L, "wireplumber_export_core");
lua_gettable (L, LUA_REGISTRYINDEX);
if (wplua_isobject (L, -1, WP_TYPE_CORE))
core = wplua_toobject (L, -1);
lua_pop (L, 1);
return core ? core : get_wp_core(L);
}
/* GLib */
static int
glib_get_monotonic_time (lua_State *L)
{
lua_pushinteger (L, g_get_monotonic_time ());
return 1;
}
static int
glib_get_real_time (lua_State *L)
{
lua_pushinteger (L, g_get_real_time ());
return 1;
}
static gboolean
access_parse_mode (const gchar * mode_str, gint *mode)
{
*mode = 0;
if (!mode_str)
return FALSE;
else {
for (guint i = 0; i < strlen (mode_str); i++) {
switch (mode_str[i]) {
case 'r': *mode |= R_OK; break;
case 'w': *mode |= W_OK; break;
case 'x': *mode |= X_OK; break;
case 'f': *mode |= F_OK; break;
case '-': break;
default:
return FALSE;
}
}
}
return TRUE;
}
static int
glib_access (lua_State *L)
{
const gchar *filename = luaL_checkstring (L, 1);
int mode = 0;
if (!access_parse_mode (luaL_checkstring (L, 2), &mode))
luaL_error (L, "invalid mode string: '%s'", lua_tostring (L, 2));
lua_pushboolean (L, g_access (filename, mode) >= 0);
return 1;
}
static const luaL_Reg glib_methods[] = {
{ "get_monotonic_time", glib_get_monotonic_time },
{ "get_real_time", glib_get_real_time },
{ "access", glib_access },
{ NULL, NULL }
};
/* GSource */
static int
source_destroy (lua_State *L)
{
GSource *source = wplua_checkboxed (L, 1, G_TYPE_SOURCE);
g_source_destroy (source);
return 0;
}
static const luaL_Reg source_methods[] = {
{ "destroy", source_destroy },
{ NULL, NULL }
};
/* i18n */
static int
i18n_gettext (lua_State *L)
{
const gchar * msgid = luaL_checkstring (L, 1);
lua_pushstring (L, dgettext (GETTEXT_PACKAGE, msgid));
return 1;
}
static int
i18n_ngettext (lua_State *L)
{
const gchar * msgid = luaL_checkstring (L, 1);
const gchar *msgid_plural = luaL_checkstring (L, 2);
gulong n = luaL_checkinteger (L, 3);
lua_pushstring (L, dngettext (GETTEXT_PACKAGE, msgid, msgid_plural, n));
return 1;
}
static const luaL_Reg i18n_funcs[] = {
{ "gettext", i18n_gettext },
{ "ngettext", i18n_ngettext },
{ NULL, NULL }
};
/* WpCore */
static int
core_get_info (lua_State *L)
{
WpCore * core = get_wp_core (L);
g_autoptr (WpProperties) p = wp_core_get_remote_properties (core);
lua_newtable (L);
lua_pushinteger (L, wp_core_get_remote_cookie (core));
lua_setfield (L, -2, "cookie");
lua_pushstring (L, wp_core_get_remote_name (core));
lua_setfield (L, -2, "name");
lua_pushstring (L, wp_core_get_remote_user_name (core));
lua_setfield (L, -2, "user_name");
lua_pushstring (L, wp_core_get_remote_host_name (core));
lua_setfield (L, -2, "host_name");
lua_pushstring (L, wp_core_get_remote_version (core));
lua_setfield (L, -2, "version");
wplua_properties_to_table (L, p);
lua_setfield (L, -2, "properties");
return 1;
}
static int
core_get_vm_type (lua_State *L)
{
WpCore * core = get_wp_core (L);
g_autofree gchar *vm = wp_core_get_vm_type (core);
lua_pushstring (L, vm);
return 1;
}
static int
core_idle_add (lua_State *L)
{
GSource *source = NULL;
luaL_checktype (L, 1, LUA_TFUNCTION);
wp_core_idle_add_closure (get_wp_core (L), &source,
wplua_function_to_closure (L, 1));
wplua_pushboxed (L, G_TYPE_SOURCE, source);
return 1;
}
static int
core_timeout_add (lua_State *L)
{
GSource *source = NULL;
lua_Integer timeout_ms = luaL_checkinteger (L, 1);
luaL_checktype (L, 2, LUA_TFUNCTION);
wp_core_timeout_add_closure (get_wp_core (L), &source, timeout_ms,
wplua_function_to_closure (L, 2));
wplua_pushboxed (L, G_TYPE_SOURCE, source);
return 1;
}
static void
on_core_done (WpCore * core, GAsyncResult * res, GClosure * closure)
{
g_autoptr (GError) error = NULL;
GValue val = G_VALUE_INIT;
int n_vals = 0;
if (!wp_core_sync_finish (core, res, &error)) {
g_value_init (&val, G_TYPE_STRING);
g_value_set_string (&val, error->message);
n_vals = 1;
}
g_closure_invoke (closure, NULL, n_vals, &val, NULL);
g_value_unset (&val);
g_closure_invalidate (closure);
g_closure_unref (closure);
}
static int
core_sync (lua_State *L)
{
luaL_checktype (L, 1, LUA_TFUNCTION);
GClosure * closure = wplua_function_to_closure (L, 1);
g_closure_sink (g_closure_ref (closure));
wp_core_sync (get_wp_core (L), NULL, (GAsyncReadyCallback) on_core_done,
closure);
return 0;
}
static gboolean
core_disconnect (WpCore * core)
{
wp_core_disconnect (core);
return G_SOURCE_REMOVE;
}
static int
core_quit (lua_State *L)
{
WpCore * core = get_wp_core (L);
g_autoptr (WpProperties) p = wp_core_get_properties (core);
const gchar *daemon = wp_properties_get (p, "wireplumber.daemon");
if (!g_strcmp0 (daemon, "true")) {
wp_warning ("script attempted to quit, but the engine is "
"running in the wireplumber daemon; ignoring");
return 0;
}
/* wp_core_disconnect() will immediately destroy the lua plugin
and the lua engine, so we cannot call it directly */
wp_core_idle_add (core, NULL, G_SOURCE_FUNC (core_disconnect), core, NULL);
return 0;
}
#include "require.c"
static int
core_require_api (lua_State *L)
{
WpCore * core = get_wp_core (L);
g_autoptr (WpProperties) p = wp_core_get_properties (core);
const gchar *daemon = wp_properties_get (p, "wireplumber.daemon");
if (!g_strcmp0 (daemon, "true")) {
wp_warning ("script attempted to load an API module, but the engine is "
"running in the wireplumber daemon; ignoring");
return 0;
}
return wp_require_api_transition_new_from_lua (L, core);
}
static const luaL_Reg core_funcs[] = {
{ "get_info", core_get_info },
{ "get_vm_type", core_get_vm_type },
{ "idle_add", core_idle_add },
{ "timeout_add", core_timeout_add },
{ "sync", core_sync },
{ "quit", core_quit },
{ "require_api", core_require_api },
{ NULL, NULL }
};
/* WpLog */
static int
log_log (lua_State *L, GLogLevelFlags lvl)
{
lua_Debug ar = {0};
const gchar *message, *tmp;
gchar domain[25];
gchar line_str[11];
gconstpointer instance = NULL;
GType type = G_TYPE_INVALID;
int index = 1;
if (!wp_log_level_is_enabled (lvl))
return 0;
g_warn_if_fail (lua_getstack (L, 1, &ar) == 1);
g_warn_if_fail (lua_getinfo (L, "nSl", &ar) == 1);
if (wplua_isobject (L, 1, G_TYPE_OBJECT)) {
instance = wplua_toobject (L, 1);
type = G_TYPE_FROM_INSTANCE (instance);
index++;
}
else if (wplua_isboxed (L, 1, G_TYPE_BOXED)) {
instance = wplua_toboxed (L, 1);
type = wplua_gvalue_userdata_type (L, 1);
index++;
}
message = luaL_checkstring (L, index);
tmp = ar.source ? g_strrstr (ar.source, ".lua") : NULL;
snprintf (domain, 25, "script/%.*s",
tmp ? MIN((gint)(tmp - ar.source), 17) : 17,
ar.source);
snprintf (line_str, 11, "%d", ar.currentline);
ar.name = ar.name ? ar.name : "chunk";
wp_log_structured_standard (domain, lvl,
ar.source, line_str, ar.name, type, instance, "%s", message);
return 0;
}
static int
log_warning (lua_State *L) { return log_log (L, G_LOG_LEVEL_WARNING); }
static int
log_message (lua_State *L) { return log_log (L, G_LOG_LEVEL_MESSAGE); }
static int
log_info (lua_State *L) { return log_log (L, G_LOG_LEVEL_INFO); }
static int
log_debug (lua_State *L) { return log_log (L, G_LOG_LEVEL_DEBUG); }
static int
log_trace (lua_State *L) { return log_log (L, WP_LOG_LEVEL_TRACE); }
static const luaL_Reg log_funcs[] = {
{ "warning", log_warning },
{ "message", log_message },
{ "info", log_info },
{ "debug", log_debug },
{ "trace", log_trace },
{ NULL, NULL }
};
/* WpPlugin */
static int
plugin_find (lua_State *L)
{
const char *name = luaL_checkstring (L, 1);
WpPlugin *plugin = wp_plugin_find (get_wp_core (L), name);
if (plugin)
wplua_pushobject (L, plugin);
else
lua_pushnil (L);
return 1;
}
static const luaL_Reg plugin_funcs[] = {
{ "find", plugin_find },
{ NULL, NULL }
};
/* WpObject */
static void
object_activate_done (WpObject *o, GAsyncResult * res, GClosure * closure)
{
g_autoptr (GError) error = NULL;
GValue val[2] = { G_VALUE_INIT, G_VALUE_INIT };
int n_vals = 1;
if (!wp_object_activate_finish (o, res, &error)) {
wp_message_object (o, "%s", error->message);
if (closure) {
g_value_init (&val[1], G_TYPE_STRING);
g_value_set_string (&val[1], error->message);
n_vals = 2;
}
}
if (closure) {
g_value_init_from_instance (&val[0], o);
g_closure_invoke (closure, NULL, n_vals, val, NULL);
g_value_unset (&val[0]);
g_value_unset (&val[1]);
g_closure_invalidate (closure);
g_closure_unref (closure);
}
}
static int
object_activate (lua_State *L)
{
WpObject *o = wplua_checkobject (L, 1, WP_TYPE_OBJECT);
WpObjectFeatures features = luaL_checkinteger (L, 2);
GClosure * closure = luaL_opt (L, wplua_checkclosure, 3, NULL);
if (closure)
g_closure_sink (g_closure_ref (closure));
wp_object_activate (o, features, NULL,
(GAsyncReadyCallback) object_activate_done, closure);
return 0;
}
static int
object_deactivate (lua_State *L)
{
WpObject *o = wplua_checkobject (L, 1, WP_TYPE_OBJECT);
WpObjectFeatures features = luaL_checkinteger (L, 2);
wp_object_deactivate (o, features);
return 0;
}
static int
object_get_active_features (lua_State *L)
{
WpObject *o = wplua_checkobject (L, 1, WP_TYPE_OBJECT);
WpObjectFeatures features = wp_object_get_active_features (o);
lua_pushinteger (L, features);
return 1;
}
static int
object_get_supported_features (lua_State *L)
{
WpObject *o = wplua_checkobject (L, 1, WP_TYPE_OBJECT);
WpObjectFeatures features = wp_object_get_supported_features (o);
lua_pushinteger (L, features);
return 1;
}
static const luaL_Reg object_methods[] = {
{ "activate", object_activate },
{ "deactivate", object_deactivate },
{ "get_active_features", object_get_active_features },
{ "get_supported_features", object_get_supported_features },
{ NULL, NULL }
};
/* WpProxy */
static int
proxy_get_interface_type (lua_State *L)
{
WpProxy * p = wplua_checkobject (L, 1, WP_TYPE_PROXY);
guint32 version = 0;
const gchar *type = wp_proxy_get_interface_type (p, &version);
lua_pushstring (L, type);
lua_pushinteger (L, version);
return 2;
}
static const luaL_Reg proxy_methods[] = {
{ "get_interface_type", proxy_get_interface_type },
{ NULL, NULL }
};
/* WpGlobalProxy */
static int
global_proxy_request_destroy (lua_State *L)
{
WpGlobalProxy * p = wplua_checkobject (L, 1, WP_TYPE_GLOBAL_PROXY);
wp_global_proxy_request_destroy (p);
return 0;
}
static const luaL_Reg global_proxy_methods[] = {
{ "request_destroy", global_proxy_request_destroy },
{ NULL, NULL }
};
/* WpIterator */
static int
iterator_next (lua_State *L)
{
WpIterator *it = wplua_checkboxed (L, 1, WP_TYPE_ITERATOR);
g_auto (GValue) v = G_VALUE_INIT;
if (it && wp_iterator_next (it, &v)) {
return wplua_gvalue_to_lua (L, &v);
} else {
lua_pushnil (L);
return 1;
}
}
static int
push_wpiterator (lua_State *L, WpIterator *it)
{
lua_pushcfunction (L, iterator_next);
wplua_pushboxed (L, WP_TYPE_ITERATOR, it);
return 2;
}
/* Metadata WpIterator */
static int
metadata_iterator_next (lua_State *L)
{
WpIterator *it = wplua_checkboxed (L, 1, WP_TYPE_ITERATOR);
g_auto (GValue) item = G_VALUE_INIT;
if (wp_iterator_next (it, &item)) {
guint32 s = 0;
const gchar *k = NULL, *t = NULL, *v = NULL;
wp_metadata_iterator_item_extract (&item, &s, &k, &t, &v);
lua_pushinteger (L, s);
lua_pushstring (L, k);
lua_pushstring (L, t);
lua_pushstring (L, v);
return 4;
} else {
lua_pushnil (L);
return 1;
}
}
static int
push_metadata_wpiterator (lua_State *L, WpIterator *it)
{
lua_pushcfunction (L, metadata_iterator_next);
wplua_pushboxed (L, WP_TYPE_ITERATOR, it);
return 2;
}
/* WpObjectInterest */
static GVariant *
constraint_value_to_variant (lua_State *L, int idx)
{
switch (lua_type (L, idx)) {
case LUA_TBOOLEAN:
return g_variant_new_boolean (lua_toboolean (L, idx));
case LUA_TSTRING:
return g_variant_new_string (lua_tostring (L, idx));
case LUA_TNUMBER:
if (lua_isinteger (L, idx))
return g_variant_new_int64 (lua_tointeger (L, idx));
else
return g_variant_new_double (lua_tonumber (L, idx));
default:
return NULL;
}
}
static void
object_interest_new_add_constraint (lua_State *L, GType type,
WpObjectInterest *interest)
{
int constraint_idx;
WpConstraintType ctype;
const gchar *subject;
WpConstraintVerb verb;
GVariant *value = NULL;
constraint_idx = lua_absindex (L, -1);
/* verify this is a Constraint{} */
if (lua_type (L, constraint_idx) != LUA_TTABLE) {
luaL_error (L, "Interest: expected Constraint at index %d",
lua_tointeger (L, -2));
}
if (luaL_getmetafield (L, constraint_idx, "__name") == LUA_TNIL ||
g_strcmp0 (lua_tostring (L, -1), "Constraint") != 0) {
luaL_error (L, "Interest: expected Constraint at index %d",
lua_tointeger (L, -2));
}
lua_pop (L, 1);
/* get the constraint type */
lua_pushliteral (L, "type");
if (lua_gettable (L, constraint_idx) == LUA_TNUMBER)
ctype = lua_tointeger (L, -1);
else
ctype = WP_CONSTRAINT_TYPE_PW_GLOBAL_PROPERTY;
lua_pop (L, 1);
/* get t[1] (the subject) and t[2] (the verb) */
lua_geti (L, constraint_idx, 1);
subject = lua_tostring (L, -1);
lua_geti (L, constraint_idx, 2);
verb = lua_tostring (L, -1)[0];
switch (verb) {
case WP_CONSTRAINT_VERB_EQUALS:
case WP_CONSTRAINT_VERB_NOT_EQUALS:
case WP_CONSTRAINT_VERB_MATCHES: {
lua_geti (L, constraint_idx, 3);
value = constraint_value_to_variant (L, -1);
if (G_UNLIKELY (!value))
luaL_error (L, "Constraint: bad value type");
break;
}
case WP_CONSTRAINT_VERB_IN_RANGE: {
GVariant *values[2];
lua_geti (L, constraint_idx, 3);
lua_geti (L, constraint_idx, 4);
values[0] = constraint_value_to_variant (L, -2);
values[1] = constraint_value_to_variant (L, -1);
if (G_UNLIKELY (!values[0] || !values[1])) {
g_clear_pointer (&values[0], g_variant_unref);
g_clear_pointer (&values[1], g_variant_unref);
luaL_error (L, "Constraint: bad value type");
}
value = g_variant_new_tuple (values, 2);
break;
}
case WP_CONSTRAINT_VERB_IN_LIST: {
GPtrArray *values =
g_ptr_array_new_with_free_func ((GDestroyNotify) g_variant_unref);
int i = 3;
while (lua_geti (L, constraint_idx, i++) != LUA_TNIL) {
GVariant *tmp = constraint_value_to_variant (L, -1);
if (G_UNLIKELY (!tmp)) {
g_ptr_array_unref (values);
luaL_error (L, "Constraint: bad value type");
}
g_ptr_array_add (values, g_variant_ref_sink (tmp));
lua_pop (L, 1);
}
value = g_variant_new_tuple ((GVariant **) values->pdata, values->len);
g_ptr_array_unref (values);
break;
}
default:
break;
}
wp_object_interest_add_constraint (interest, ctype, subject, verb, value);
lua_settop (L, constraint_idx);
}
static GType
parse_gtype (const gchar *str)
{
g_autofree gchar *typestr = NULL;
GType res = G_TYPE_INVALID;
g_return_val_if_fail (str, res);
/* "device" -> "WpDevice" */
typestr = g_strdup_printf ("Wp%s", str);
if (typestr[2] != 0) {
typestr[2] = g_ascii_toupper (typestr[2]);
res = g_type_from_name (typestr);
}
return res;
}
static int
object_interest_new_index (lua_State *L, int idx, GType def_type)
{
WpObjectInterest *interest = NULL;
GType type = def_type;
luaL_checktype (L, idx, LUA_TTABLE);
/* type = "string" */
lua_pushliteral (L, "type");
if (lua_gettable (L, idx) == LUA_TSTRING) {
type = parse_gtype (lua_tostring (L, -1));
if (type == G_TYPE_INVALID)
luaL_error (L, "Interest: unknown type '%s'", lua_tostring (L, -1));
}
else if (def_type == G_TYPE_INVALID)
luaL_error (L, "Interest: expected 'type' as string");
lua_pop (L, 1);
interest = wp_object_interest_new_type (type);
wplua_pushboxed (L, WP_TYPE_OBJECT_INTEREST, interest);
/* add constraints */
lua_pushnil (L);
while (lua_next (L, idx)) {
/* if the key isn't "type" */
if (!(lua_type (L, -2) == LUA_TSTRING &&
!g_strcmp0 ("type", lua_tostring (L, -2))))
object_interest_new_add_constraint (L, type, interest);
lua_pop (L, 1);
}
return 1;
}
static int
object_interest_new (lua_State *L)
{
return object_interest_new_index (L, 1, G_TYPE_INVALID);
}
static int
object_interest_matches (lua_State *L)
{
WpObjectInterest *interest = wplua_checkboxed (L, 1, WP_TYPE_OBJECT_INTEREST);
gboolean matches = FALSE;
if (wplua_isobject (L, 2, G_TYPE_OBJECT)) {
matches = wp_object_interest_matches (interest, wplua_toobject (L, 2));
}
else if (lua_istable (L, 2)) {
g_autoptr (WpProperties) props = wplua_table_to_properties (L, 2);
matches = wp_object_interest_matches (interest, props);
} else
luaL_argerror (L, 2, "expected GObject or table");
lua_pushboolean (L, matches);
return 1;
}
static const luaL_Reg object_interest_methods[] = {
{ "matches", object_interest_matches },
{ NULL, NULL }
};
static WpObjectInterest *
get_optional_object_interest (lua_State *L, int idx, GType def_type)
{
if (lua_isnoneornil (L, idx))
return NULL;
else if (lua_isuserdata (L, idx))
return wplua_checkboxed (L, idx, WP_TYPE_OBJECT_INTEREST);
else if (lua_istable (L, idx)) {
object_interest_new_index (L, idx, def_type);
return wplua_toboxed (L, -1);
} else {
luaL_error (L, "expected Interest or none/nil");
return NULL;
}
}
/* WpObjectManager */
static int
object_manager_new (lua_State *L)
{
WpObjectManager *om;
/* validate arguments */
luaL_checktype (L, 1, LUA_TTABLE);
/* push to Lua asap to have a way to unref in case of error */
om = wp_object_manager_new ();
wplua_pushobject (L, om);
lua_pushnil (L);
while (lua_next (L, 1)) {
WpObjectInterest *interest =
wplua_checkboxed (L, -1, WP_TYPE_OBJECT_INTEREST);
wp_object_manager_add_interest_full (om, wp_object_interest_ref (interest));
lua_pop (L, 1);
}
/* request all the features for Lua scripts to make their job easier */
wp_object_manager_request_object_features (om,
WP_TYPE_OBJECT, WP_OBJECT_FEATURES_ALL);
return 1;
}
static int
object_manager_activate (lua_State *L)
{
WpObjectManager *om = wplua_checkobject (L, 1, WP_TYPE_OBJECT_MANAGER);
wp_core_install_object_manager (get_wp_core (L), om);
return 0;
}
static int
object_manager_get_n_objects (lua_State *L)
{
WpObjectManager *om = wplua_checkobject (L, 1, WP_TYPE_OBJECT_MANAGER);
lua_pushinteger (L, wp_object_manager_get_n_objects (om));
return 1;
}
static int
object_manager_iterate (lua_State *L)
{
WpObjectManager *om = wplua_checkobject (L, 1, WP_TYPE_OBJECT_MANAGER);
WpObjectInterest *oi = get_optional_object_interest (L, 2, G_TYPE_OBJECT);
WpIterator *it = oi ?
wp_object_manager_new_filtered_iterator_full (om,
wp_object_interest_ref (oi)) :
wp_object_manager_new_iterator (om);
return push_wpiterator (L, it);
}
static int
object_manager_lookup (lua_State *L)
{
WpObjectManager *om = wplua_checkobject (L, 1, WP_TYPE_OBJECT_MANAGER);
WpObjectInterest *oi = get_optional_object_interest (L, 2, G_TYPE_OBJECT);
WpObject *o = oi ?
wp_object_manager_lookup_full (om, wp_object_interest_ref (oi)) :
wp_object_manager_lookup (om, G_TYPE_OBJECT, NULL);
if (o) {
wplua_pushobject (L, o);
return 1;
}
return 0;
}
static const luaL_Reg object_manager_methods[] = {
{ "activate", object_manager_activate },
{ "get_n_objects", object_manager_get_n_objects },
{ "iterate", object_manager_iterate },
{ "lookup", object_manager_lookup },
{ NULL, NULL }
};
/* WpMetadata */
static int
metadata_iterate (lua_State *L)
{
WpMetadata *metadata = wplua_checkobject (L, 1, WP_TYPE_METADATA);
lua_Integer subject = luaL_checkinteger (L, 2);
WpIterator *it = wp_metadata_new_iterator (metadata, subject);
return push_metadata_wpiterator (L, it);
}
static int
metadata_find (lua_State *L)
{
WpMetadata *metadata = wplua_checkobject (L, 1, WP_TYPE_METADATA);
lua_Integer subject = luaL_checkinteger (L, 2);
const char *key = luaL_checkstring (L, 3), *v = NULL, *t = NULL;
v = wp_metadata_find (metadata, subject, key, &t);
lua_pushstring (L, v);
lua_pushstring (L, t);
return 2;
}
static int
metadata_set (lua_State *L)
{
WpMetadata *metadata = wplua_checkobject (L, 1, WP_TYPE_METADATA);
lua_Integer subject = luaL_checkinteger (L, 2);
const char *key = luaL_opt (L, luaL_checkstring, 3, NULL);
const char *type = luaL_opt (L, luaL_checkstring, 4, NULL);
const char *value = luaL_opt (L, luaL_checkstring, 5, NULL);
wp_metadata_set (metadata, subject, key, type, value);
return 0;
}
static const luaL_Reg metadata_methods[] = {
{ "iterate", metadata_iterate },
{ "find", metadata_find },
{ "set", metadata_set },
{ NULL, NULL }
};
/* WpImplMetadata */
static int
impl_metadata_new (lua_State *L)
{
const char *name = luaL_checkstring (L, 1);
WpProperties *properties = NULL;
if (lua_type (L, 2) != LUA_TNONE) {
luaL_checktype (L, 2, LUA_TTABLE);
properties = wplua_table_to_properties (L, 2);
}
WpImplMetadata *m = wp_impl_metadata_new_full (get_wp_core (L),
name, properties);
if (m)
wplua_pushobject (L, m);
return m ? 1 : 0;
}
/* WpEndpoint */
static const luaL_Reg endpoint_methods[] = {
{ NULL, NULL }
};
/* Device */
static int
device_new (lua_State *L)
{
const char *factory = luaL_checkstring (L, 1);
WpProperties *properties = NULL;
if (lua_type (L, 2) != LUA_TNONE) {
luaL_checktype (L, 2, LUA_TTABLE);
properties = wplua_table_to_properties (L, 2);
}
WpDevice *d = wp_device_new_from_factory (get_wp_export_core (L),
factory, properties);
if (d)
wplua_pushobject (L, d);
return d ? 1 : 0;
}
/* WpSpaDevice */
static int
spa_device_new (lua_State *L)
{
const char *factory = luaL_checkstring (L, 1);
WpProperties *properties = NULL;
if (lua_type (L, 2) != LUA_TNONE) {
luaL_checktype (L, 2, LUA_TTABLE);
properties = wplua_table_to_properties (L, 2);
}
WpSpaDevice *d = wp_spa_device_new_from_spa_factory (get_wp_export_core (L),
factory, properties);
if (d)
wplua_pushobject (L, d);
return d ? 1 : 0;
}
static int
spa_device_iterate_managed_objects (lua_State *L)
{
WpSpaDevice *device = wplua_checkobject (L, 1, WP_TYPE_SPA_DEVICE);
WpIterator *it = wp_spa_device_new_managed_object_iterator (device);
return push_wpiterator (L, it);
}
static int
spa_device_get_managed_object (lua_State *L)
{
WpSpaDevice *device = wplua_checkobject (L, 1, WP_TYPE_SPA_DEVICE);
guint id = luaL_checkinteger (L, 2);
GObject *obj = wp_spa_device_get_managed_object (device, id);
if (obj)
wplua_pushobject (L, obj);
return obj ? 1 : 0;
}
static int
spa_device_store_managed_object (lua_State *L)
{
WpSpaDevice *device = wplua_checkobject (L, 1, WP_TYPE_SPA_DEVICE);
guint id = luaL_checkinteger (L, 2);
GObject *obj = (lua_type (L, 3) != LUA_TNIL) ?
g_object_ref (wplua_checkobject (L, 3, G_TYPE_OBJECT)) : NULL;
wp_spa_device_store_managed_object (device, id, obj);
return 0;
}
static const luaL_Reg spa_device_methods[] = {
{ "iterate_managed_objects", spa_device_iterate_managed_objects },
{ "get_managed_object", spa_device_get_managed_object },
{ "store_managed_object", spa_device_store_managed_object },
{ NULL, NULL }
};
/* Node */
static int
node_new (lua_State *L)
{
const char *factory = luaL_checkstring (L, 1);
WpProperties *properties = NULL;
if (lua_type (L, 2) != LUA_TNONE) {
luaL_checktype (L, 2, LUA_TTABLE);
properties = wplua_table_to_properties (L, 2);
}
WpNode *d = wp_node_new_from_factory (get_wp_export_core (L),
factory, properties);
if (d)
wplua_pushobject (L, d);
return d ? 1 : 0;
}
static int
node_get_state (lua_State *L)
{
WpNode *node = wplua_checkobject (L, 1, WP_TYPE_NODE);
const gchar *error = NULL;
WpNodeState state = wp_node_get_state (node, &error);
wplua_enum_to_lua (L, state, WP_TYPE_NODE_STATE);
lua_pushstring (L, error ? error : "");
return 2;
}
static int
node_get_n_input_ports (lua_State *L)
{
WpNode *node = wplua_checkobject (L, 1, WP_TYPE_NODE);
guint max = 0;
guint ports = wp_node_get_n_input_ports (node, &max);
lua_pushinteger (L, ports);
lua_pushinteger (L, max);
return 2;
}
static int
node_get_n_output_ports (lua_State *L)
{
WpNode *node = wplua_checkobject (L, 1, WP_TYPE_NODE);
guint max = 0;
guint ports = wp_node_get_n_output_ports (node, &max);
lua_pushinteger (L, ports);
lua_pushinteger (L, max);
return 2;
}
static int
node_get_n_ports (lua_State *L)
{
WpNode *node = wplua_checkobject (L, 1, WP_TYPE_NODE);
guint ports = wp_node_get_n_ports (node);
lua_pushinteger (L, ports);
return 1;
}
static int
node_iterate_ports (lua_State *L)
{
WpNode *node = wplua_checkobject (L, 1, WP_TYPE_NODE);
WpObjectInterest *oi = get_optional_object_interest (L, 2, WP_TYPE_PORT);
WpIterator *it = oi ?
wp_node_new_ports_filtered_iterator_full (node,
wp_object_interest_ref (oi)) :
wp_node_new_ports_iterator (node);
return push_wpiterator (L, it);
}
static int
node_lookup_port (lua_State *L)
{
WpNode *node = wplua_checkobject (L, 1, WP_TYPE_NODE);
WpObjectInterest *oi = get_optional_object_interest (L, 2, WP_TYPE_PORT);
WpPort *port = oi ?
wp_node_lookup_port_full (node, wp_object_interest_ref (oi)) :
wp_node_lookup_port (node, G_TYPE_OBJECT, NULL);
if (port) {
wplua_pushobject (L, port);
return 1;
}
return 0;
}
static int
node_send_command (lua_State *L)
{
WpNode *node = wplua_checkobject (L, 1, WP_TYPE_NODE);
const char *command = luaL_checkstring (L, 2);
wp_node_send_command (node, command);
return 0;
}
static const luaL_Reg node_methods[] = {
{ "get_state", node_get_state },
{ "get_n_input_ports", node_get_n_input_ports },
{ "get_n_output_ports", node_get_n_output_ports },
{ "get_n_ports", node_get_n_ports },
{ "iterate_ports", node_iterate_ports },
{ "lookup_port", node_lookup_port },
{ "send_command", node_send_command },
{ NULL, NULL }
};
/* ImplNode */
static int
impl_node_new (lua_State *L)
{
const char *factory = luaL_checkstring (L, 1);
WpProperties *properties = NULL;
if (lua_type (L, 2) != LUA_TNONE) {
luaL_checktype (L, 2, LUA_TTABLE);
properties = wplua_table_to_properties (L, 2);
}
WpImplNode *d = wp_impl_node_new_from_pw_factory (get_wp_export_core (L),
factory, properties);
if (d)
wplua_pushobject (L, d);
return d ? 1 : 0;
}
/* Port */
static int
port_get_direction (lua_State *L)
{
WpPort *port = wplua_checkobject (L, 1, WP_TYPE_PORT);
WpDirection direction = wp_port_get_direction (port);
wplua_enum_to_lua (L, direction, WP_TYPE_DIRECTION);
return 1;
}
static const luaL_Reg port_methods[] = {
{ "get_direction", port_get_direction },
{ NULL, NULL }
};
/* Link */
static int
link_new (lua_State *L)
{
const char *factory = luaL_checkstring (L, 1);
WpProperties *properties = NULL;
if (lua_type (L, 2) != LUA_TNONE) {
luaL_checktype (L, 2, LUA_TTABLE);
properties = wplua_table_to_properties (L, 2);
}
WpLink *l = wp_link_new_from_factory (get_wp_core (L), factory, properties);
if (l)
wplua_pushobject (L, l);
return l ? 1 : 0;
}
/* Client */
static gboolean
client_parse_permissions (const gchar * perms_str, guint32 *perms)
{
*perms = 0;
if (!perms_str)
return FALSE;
else if (g_strcmp0 (perms_str, "all") == 0)
*perms = PW_PERM_ALL;
else {
for (guint i = 0; i < strlen (perms_str); i++) {
switch (perms_str[i]) {
case 'r': *perms |= PW_PERM_R; break;
case 'w': *perms |= PW_PERM_W; break;
case 'x': *perms |= PW_PERM_X; break;
case 'm': *perms |= PW_PERM_M; break;
case '-': break;
default:
return FALSE;
}
}
}
return TRUE;
}
static int
client_update_permissions (lua_State *L)
{
WpClient *client = wplua_checkobject (L, 1, WP_TYPE_CLIENT);
g_autoptr (GArray) arr = NULL;
luaL_checktype (L, 2, LUA_TTABLE);
lua_pushnil(L);
while (lua_next (L, -2)) {
struct pw_permission perm = {0};
if (lua_type (L, -2) == LUA_TSTRING &&
(!g_ascii_strcasecmp (lua_tostring(L, -2), "any") ||
!g_ascii_strcasecmp (lua_tostring(L, -2), "all")))
perm.id = PW_ID_ANY;
else if (lua_isinteger (L, -2))
perm.id = lua_tointeger (L, -2);
else
luaL_error (L, "invalid key for permissions array");
if (!client_parse_permissions (lua_tostring (L, -1), &perm.permissions))
luaL_error (L, "invalid permission string: '%s'", lua_tostring (L, -1));
if (!arr)
arr = g_array_new (FALSE, FALSE, sizeof (struct pw_permission));
g_array_append_val (arr, perm);
lua_pop (L, 1);
}
wp_client_update_permissions_array (client, arr->len,
(const struct pw_permission *) arr->data);
return 0;
}
static int
client_send_error (lua_State *L)
{
WpClient *client = wplua_checkobject (L, 1, WP_TYPE_CLIENT);
guint id = luaL_checkinteger (L, 2);
int res = luaL_checkinteger (L, 3);
const char *message = luaL_checkstring (L, 4);
wp_client_send_error (client, id, res, message);
return 0;
}
static const luaL_Reg client_methods[] = {
{ "update_permissions", client_update_permissions },
{ "send_error", client_send_error },
{ NULL, NULL }
};
/* WpSessionItem */
static int
session_item_new (lua_State *L)
{
const char *type = luaL_checkstring (L, 1);
WpSessionItem *si = wp_session_item_make (get_wp_core (L), type);
if (si)
wplua_pushobject (L, si);
return si ? 1 : 0;
}
static int
session_item_get_associated_proxy (lua_State *L)
{
WpSessionItem *si = wplua_checkobject (L, 1, WP_TYPE_SESSION_ITEM);
const char *typestr = luaL_checkstring (L, 2);
WpProxy *proxy = wp_session_item_get_associated_proxy (si,
parse_gtype (typestr));
if (proxy)
wplua_pushobject (L, proxy);
return proxy ? 1 : 0;
}
static int
session_item_reset (lua_State *L)
{
WpSessionItem *si = wplua_checkobject (L, 1, WP_TYPE_SESSION_ITEM);
wp_session_item_reset (si);
return 0;
}
static int
session_item_configure (lua_State *L)
{
WpSessionItem *si = wplua_checkobject (L, 1, WP_TYPE_SESSION_ITEM);
WpProperties *props = wp_properties_new_empty ();
/* validate arguments */
luaL_checktype (L, 2, LUA_TTABLE);
/* build the configuration properties */
lua_pushnil (L);
while (lua_next (L, 2)) {
const gchar *key = NULL;
g_autofree gchar *var = NULL;
switch (lua_type (L, -1)) {
case LUA_TBOOLEAN:
var = g_strdup_printf ("%u", lua_toboolean (L, -1));
break;
case LUA_TNUMBER:
if (lua_isinteger (L, -1))
var = g_strdup_printf ("%lld", lua_tointeger (L, -1));
else
var = g_strdup_printf ("%f", lua_tonumber (L, -1));
break;
case LUA_TSTRING:
var = g_strdup (lua_tostring (L, -1));
break;
case LUA_TUSERDATA: {
GValue *v = lua_touserdata (L, -1);
gpointer p = g_value_peek_pointer (v);
var = g_strdup_printf ("%p", p);
break;
}
default:
luaL_error (L, "configure does not support lua type ",
lua_typename(L, lua_type(L, -1)));
break;
}
key = luaL_tolstring (L, -2, NULL);
wp_properties_set (props, key, var);
lua_pop (L, 2);
}
lua_pushboolean (L, wp_session_item_configure (si, props));
return 1;
}
static int
session_item_register (lua_State *L)
{
WpSessionItem *si = wplua_checkobject (L, 1, WP_TYPE_SESSION_ITEM);
wp_session_item_register (g_object_ref (si));
return 0;
}
static int
session_item_remove (lua_State *L)
{
WpSessionItem *si = wplua_checkobject (L, 1, WP_TYPE_SESSION_ITEM);
wp_session_item_remove (si);
return 0;
}
static const luaL_Reg session_item_methods[] = {
{ "get_associated_proxy", session_item_get_associated_proxy },
{ "reset", session_item_reset },
{ "configure", session_item_configure },
{ "register", session_item_register },
{ "remove", session_item_remove },
{ NULL, NULL }
};
/* WpSiAdapter */
static int
si_adapter_get_ports_format (lua_State *L)
{
WpSiAdapter *adapter = wplua_checkobject (L, 1, WP_TYPE_SI_ADAPTER);
const gchar *mode = NULL;
WpSpaPod *format = wp_si_adapter_get_ports_format (adapter, &mode);
wplua_pushboxed (L, WP_TYPE_SPA_POD, format);
lua_pushstring (L, mode);
return 2;
}
static void
si_adapter_set_ports_format_done (WpObject *o, GAsyncResult * res,
GClosure * closure)
{
g_autoptr (GError) error = NULL;
GValue val[2] = { G_VALUE_INIT, G_VALUE_INIT };
int n_vals = 1;
if (!wp_si_adapter_set_ports_format_finish (WP_SI_ADAPTER (o), res, &error)) {
wp_message_object (o, "%s", error->message);
if (closure) {
g_value_init (&val[1], G_TYPE_STRING);
g_value_set_string (&val[1], error->message);
n_vals = 2;
}
}
if (closure) {
g_value_init_from_instance (&val[0], o);
g_closure_invoke (closure, NULL, n_vals, val, NULL);
g_value_unset (&val[0]);
g_value_unset (&val[1]);
g_closure_invalidate (closure);
g_closure_unref (closure);
}
}
static int
si_adapter_set_ports_format (lua_State *L)
{
WpSiAdapter *adapter = wplua_checkobject (L, 1, WP_TYPE_SI_ADAPTER);
WpSpaPod *format = wplua_checkboxed (L, 2, WP_TYPE_SPA_POD);
const gchar *mode = luaL_checkstring (L, 3);
GClosure * closure = luaL_opt (L, wplua_checkclosure, 4, NULL);
if (closure)
g_closure_sink (g_closure_ref (closure));
wp_si_adapter_set_ports_format (adapter, wp_spa_pod_ref (format), mode,
(GAsyncReadyCallback) si_adapter_set_ports_format_done, closure);
return 0;
}
static const luaL_Reg si_adapter_methods[] = {
{ "get_ports_format", si_adapter_get_ports_format },
{ "set_ports_format", si_adapter_set_ports_format },
{ NULL, NULL }
};
/* WpPipewireObject */
static int
pipewire_object_iterate_params (lua_State *L)
{
WpPipewireObject *pwobj = wplua_checkobject (L, 1, WP_TYPE_PIPEWIRE_OBJECT);
const gchar *id = luaL_checkstring (L, 2);
WpIterator *it = wp_pipewire_object_enum_params_sync (pwobj, id, NULL);
return push_wpiterator (L, it);
}
static int
pipewire_object_set_param (lua_State *L)
{
WpPipewireObject *pwobj = wplua_checkobject (L, 1, WP_TYPE_PIPEWIRE_OBJECT);
const gchar *id = luaL_checkstring (L, 2);
WpSpaPod *pod = wplua_checkboxed (L, 3, WP_TYPE_SPA_POD);
wp_pipewire_object_set_param (pwobj, id, 0, wp_spa_pod_ref (pod));
return 0;
}
static const luaL_Reg pipewire_object_methods[] = {
{ "iterate_params", pipewire_object_iterate_params },
{ "set_param" , pipewire_object_set_param },
{ "set_params" , pipewire_object_set_param }, /* deprecated, compat only */
{ NULL, NULL }
};
/* WpState */
static int
state_new (lua_State *L)
{
const gchar *name = luaL_checkstring (L, 1);
WpState *state = wp_state_new (name);
wplua_pushobject (L, state);
return 1;
}
static int
state_clear (lua_State *L)
{
WpState *state = wplua_checkobject (L, 1, WP_TYPE_STATE);
wp_state_clear (state);
return 0;
}
static int
state_save (lua_State *L)
{
WpState *state = wplua_checkobject (L, 1, WP_TYPE_STATE);
luaL_checktype (L, 2, LUA_TTABLE);
g_autoptr (WpProperties) props = wplua_table_to_properties (L, 2);
g_autoptr (GError) error = NULL;
gboolean saved = wp_state_save (state, props, &error);
lua_pushboolean (L, saved);
lua_pushstring (L, error ? error->message : "");
return 2;
}
static int
state_load (lua_State *L)
{
WpState *state = wplua_checkobject (L, 1, WP_TYPE_STATE);
g_autoptr (WpProperties) props = wp_state_load (state);
wplua_properties_to_table (L, props);
return 1;
}
static const luaL_Reg state_methods[] = {
{ "clear", state_clear },
{ "save" , state_save },
{ "load" , state_load },
{ NULL, NULL }
};
/* ImplModule */
static int
impl_module_new (lua_State *L)
{
const char *name, *args = NULL;
WpProperties *properties = NULL;
name = luaL_checkstring (L, 1);
if (lua_type (L, 2) != LUA_TNONE && lua_type (L, 2) != LUA_TNIL)
args = luaL_checkstring (L, 2);
if (lua_type (L, 3) != LUA_TNONE && lua_type (L, 3) != LUA_TNIL) {
luaL_checktype (L, 3, LUA_TTABLE);
properties = wplua_table_to_properties (L, 3);
}
WpImplModule *m = wp_impl_module_load (get_wp_export_core (L),
name, args, properties);
if (m) {
wplua_pushobject (L, m);
return 1;
} else {
return 0;
}
}
static int
settings_get_boolean (lua_State *L)
{
const char *setting = luaL_checkstring (L, 1);
const char *m = NULL;
if (lua_type (L, 2) == LUA_TSTRING)
m = luaL_checkstring (L, 2);
g_autoptr (WpSettings) s = wp_settings_get_instance (get_wp_core (L), m);
if (s) {
gboolean value = 0;
if (wp_settings_get_boolean (s, setting, &value))
lua_pushboolean (L, value);
else
lua_pushnil (L);
} else
lua_pushnil (L);
return 1;
}
static int
settings_get_string (lua_State *L)
{
const char *setting = luaL_checkstring (L, 1);
const char *m = NULL;
if (lua_type (L, 2) == LUA_TSTRING)
m = luaL_checkstring (L, 2);
g_autoptr (WpSettings) s = wp_settings_get_instance (get_wp_core (L), m);
if (s) {
g_autofree gchar *value = wp_settings_get_string (s, setting);
if (value)
lua_pushstring (L, value);
else
lua_pushnil (L);
} else
lua_pushnil (L);
return 1;
}
static int
settings_get_int (lua_State *L)
{
const char *setting = luaL_checkstring (L, 1);
const char *m = NULL;
if (lua_type (L, 2) == LUA_TSTRING)
m = luaL_checkstring (L, 2);
g_autoptr (WpSettings) s = wp_settings_get_instance (get_wp_core (L), m);
if (s) {
gint value = 0;
if (wp_settings_get_int (s, setting, &value))
lua_pushinteger (L, value);
else
lua_pushnil (L);
} else
lua_pushnil (L);
return 1;
}
static int
settings_get_float (lua_State *L)
{
const char *setting = luaL_checkstring (L, 1);
const char *m = NULL;
if (lua_type (L, 2) == LUA_TSTRING)
m = luaL_checkstring (L, 2);
g_autoptr (WpSettings) s = wp_settings_get_instance (get_wp_core (L), m);
if (s) {
gfloat value = 0;
if (wp_settings_get_float (s, setting, &value))
lua_pushnumber (L, value);
else
lua_pushnil (L);
} else
lua_pushnil (L);
return 1;
}
static int
settings_get (lua_State *L)
{
const char *setting = luaL_checkstring (L, 1);
const char *m = NULL;
if (lua_type (L, 2) == LUA_TSTRING)
m = luaL_checkstring (L, 2);
g_autoptr (WpSettings) s = wp_settings_get_instance (get_wp_core (L), m);
if (s) {
WpSpaJson *j = wp_settings_get (s, setting);
if (j)
wplua_pushboxed (L, WP_TYPE_SPA_JSON, j);
else
lua_pushnil (L);
} else
lua_pushnil (L);
return 1;
}
static int
settings_apply_rule (lua_State *L)
{
const char *r = luaL_checkstring (L, 1);
const char *m = NULL;
g_autoptr (WpProperties) cp = wplua_table_to_properties (L, 2);
g_autoptr (WpProperties) ap = wp_properties_new_empty ();
if (lua_type (L, -1) == LUA_TSTRING)
m = luaL_checkstring (L, -1);
g_autoptr (WpSettings) s = wp_settings_get_instance (get_wp_core (L), m);
if (s) {
gboolean value = wp_settings_apply_rule (s, r, cp, ap);
lua_pushboolean (L, value);
wplua_properties_to_table (L, ap);
return 2;
}
lua_pushnil (L);
return 1;
}
static int
settings_subscribe (lua_State *L)
{
const gchar *pattern = luaL_checkstring (L, 1);
const gchar *m = NULL;
guintptr sub_id = 0;
GClosure * closure = wplua_function_to_closure (L, -1);
if (lua_type (L, 2) == LUA_TSTRING)
m = luaL_checkstring (L, 2);
g_autoptr (WpSettings) s = wp_settings_get_instance (get_wp_core (L), m);
if (s)
sub_id = wp_settings_subscribe_closure (s, pattern, closure);
lua_pushinteger (L, sub_id);
return 1;
}
static int
settings_unsubscribe (lua_State *L)
{
guintptr sub_id = luaL_checkinteger (L, 1);
const gchar *m = NULL;
gboolean ret = FALSE;
if (lua_type (L, 2) == LUA_TSTRING)
m = luaL_checkstring (L, 2);
g_autoptr (WpSettings) s = wp_settings_get_instance (get_wp_core (L), m);
if (s)
ret = wp_settings_unsubscribe (s, sub_id);
lua_pushboolean (L, ret);
return 1;
}
static const luaL_Reg settings_methods[] = {
{ "get_boolean", settings_get_boolean },
{ "get_string", settings_get_string },
{ "get_int", settings_get_int },
{ "get_float", settings_get_float },
{ "get", settings_get },
{ "apply_rule", settings_apply_rule },
{ "subscribe", settings_subscribe },
{ "unsubscribe", settings_unsubscribe },
{ NULL, NULL }
};
/* WpEvent */
static int
event_get_properties (lua_State *L)
{
WpEvent *event = wplua_checkboxed (L, 1, WP_TYPE_EVENT);
g_autoptr (WpProperties) props = wp_event_get_properties (event);
wplua_properties_to_table (L, props);
return 1;
}
static int
event_get_source (lua_State *L)
{
WpEvent *event = wplua_checkboxed (L, 1, WP_TYPE_EVENT);
wplua_pushobject (L, wp_event_get_source (event));
return 1;
}
static int
event_get_subject (lua_State *L)
{
WpEvent *event = wplua_checkboxed (L, 1, WP_TYPE_EVENT);
wplua_pushobject (L, wp_event_get_subject (event));
return 1;
}
static int
event_stop_processing (lua_State *L)
{
WpEvent *event = wplua_checkboxed (L, 1, WP_TYPE_EVENT);
wp_event_stop_processing (event);
return 0;
}
static const luaL_Reg event_methods[] = {
{ "get_properties", event_get_properties },
{ "get_source", event_get_source },
{ "get_subject", event_get_subject },
{ "stop_processing", event_stop_processing },
{ NULL, NULL }
};
/* WpEventDispatcher */
static int
event_dispatcher_push_event (lua_State *L)
{
const gchar *type = NULL;
gint priority = 0;
WpProperties *properties = NULL;
GObject *source = NULL;
GObject *subject = NULL;
luaL_checktype (L, 1, LUA_TTABLE);
lua_pushliteral (L, "type");
if (lua_gettable (L, 1) != LUA_TSTRING)
luaL_error (L, "EventDispatcher.push_event: expected 'type' as string");
type = lua_tostring (L, -1);
// not popping to keep the string allocated
lua_pushliteral (L, "priority");
if (lua_gettable (L, 1) != LUA_TNUMBER)
luaL_error (L, "EventDispatcher.push_event: expected 'priority' as number");
priority = lua_tointeger (L, -1);
lua_pop (L, 1);
lua_pushliteral (L, "properties");
if (lua_gettable (L, 1) != LUA_TNIL) {
luaL_checktype (L, -1, LUA_TTABLE);
properties = wplua_table_to_properties (L, -1);
}
lua_pop (L, 1);
lua_pushliteral (L, "source");
if (lua_gettable (L, 1) != LUA_TNIL)
source = wplua_checkobject (L, -1, G_TYPE_OBJECT);
lua_pop (L, 1);
lua_pushliteral (L, "subject");
if (lua_gettable (L, 1) != LUA_TNIL)
subject = wplua_checkobject (L, -1, G_TYPE_OBJECT);
lua_pop (L, 1);
g_autoptr (WpEventDispatcher) dispatcher =
wp_event_dispatcher_get_instance (get_wp_core (L));
WpEvent *event = wp_event_new (type, priority, properties, source, subject);
wp_event_dispatcher_push_event (dispatcher, event);
return 0;
}
static const luaL_Reg event_dispatcher_funcs[] = {
{ "push_event", event_dispatcher_push_event },
{ NULL, NULL }
};
/* WpEventHook */
static int
event_hook_register (lua_State *L)
{
WpEventHook *hook = wplua_checkobject (L, 1, WP_TYPE_EVENT_HOOK);
g_autoptr (WpEventDispatcher) dispatcher =
wp_event_dispatcher_get_instance (get_wp_core (L));
wp_event_dispatcher_register_hook (dispatcher, hook);
return 0;
}
static int
event_hook_remove (lua_State *L)
{
WpEventHook *hook = wplua_checkobject (L, 1, WP_TYPE_EVENT_HOOK);
g_autoptr (WpEventDispatcher) dispatcher =
wp_event_dispatcher_get_instance (get_wp_core (L));
wp_event_dispatcher_unregister_hook (dispatcher, hook);
return 0;
}
static const luaL_Reg event_hook_methods[] = {
{ "register", event_hook_register },
{ "remove", event_hook_remove },
{ NULL, NULL }
};
/* WpSimpleEventHook */
static int
simple_event_hook_new (lua_State *L)
{
WpEventHook *hook = NULL;
gint priority = 0;
gint priority_type = 0;
const gchar *name;
WpEventHookExecType type = 0;
GClosure *closure = NULL;
/* validate arguments */
luaL_checktype (L, 1, LUA_TTABLE);
lua_pushliteral (L, "name");
if (lua_gettable (L, 1) != LUA_TSTRING)
luaL_error(L, "SimpleEventHook: expected 'name' as string");
name = lua_tostring (L, -1);
lua_pop (L, 1);
lua_pushliteral (L, "priority");
priority_type = lua_gettable (L, 1);
if (priority_type == LUA_TNUMBER)
priority = lua_tointeger (L, -1);
else if (priority_type == LUA_TSTRING)
priority = wplua_lua_to_enum (L, -1,
WP_TYPE_EVENT_HOOK_DEFAULT_PRIORITY_TYPE);
else
luaL_error (L, "SimpleEventHook: expected 'priority' as number or string");
lua_pop (L, 1);
lua_pushliteral (L, "type");
if (lua_gettable (L, 1) == LUA_TSTRING)
type = wplua_lua_to_enum (L, -1, WP_TYPE_EVENT_HOOK_EXEC_TYPE);
else
luaL_error (L, "SimpleEventHook: expected 'type' as string");
lua_pop (L, 1);
lua_pushliteral (L, "execute");
if (lua_gettable (L, 1) == LUA_TFUNCTION)
closure = wplua_function_to_closure (L, -1);
else
luaL_error (L, "SimpleEventHook: expected 'execute' as function");
lua_pop (L, 1);
hook = wp_simple_event_hook_new (name, priority, type, closure);
wplua_pushobject (L, hook);
lua_pushliteral (L, "interests");
if (lua_gettable (L, 1) == LUA_TTABLE) {
lua_pushnil (L);
while (lua_next (L, -2)) {
WpObjectInterest *interest =
wplua_checkboxed (L, -1, WP_TYPE_OBJECT_INTEREST);
wp_interest_event_hook_add_interest_full (WP_INTEREST_EVENT_HOOK (hook),
wp_object_interest_ref (interest));
lua_pop (L, 1);
}
}
lua_pop (L, 1);
return 1;
}
/* WpAsyncEventHook */
static int
async_event_hook_get_next_step (lua_State *L)
{
WpTransition *transition = wplua_checkobject (L, 1, WP_TYPE_TRANSITION);
guint step = luaL_checkinteger (L, 2);
wp_trace_object (transition, "prev step: %u", step);
if (step == WP_TRANSITION_STEP_NONE) {
lua_pushinteger (L, WP_TRANSITION_STEP_CUSTOM_START);
return 1;
}
/* step number is the value on the stack at this point */
if (G_UNLIKELY (lua_gettable (L, lua_upvalueindex (1)) != LUA_TSTRING)) {
wp_critical_object (transition, "unknown step number");
lua_pushinteger (L, WP_TRANSITION_STEP_ERROR);
return 1;
}
/* step string is now on the stack */
if (G_UNLIKELY (lua_gettable (L, lua_upvalueindex (1)) != LUA_TTABLE)) {
wp_critical_object (transition, "unknown step string");
lua_pushinteger (L, WP_TRANSITION_STEP_ERROR);
return 1;
}
lua_pushliteral (L, "next_idx");
if (G_UNLIKELY (lua_gettable (L, -2) != LUA_TNUMBER)) {
wp_critical_object (transition, "next_idx not found");
lua_pushinteger (L, WP_TRANSITION_STEP_ERROR);
return 1;
}
return 1;
}
static int
async_event_hook_execute_step (lua_State *L)
{
WpTransition *transition = wplua_checkobject (L, 1, WP_TYPE_TRANSITION);
WpEvent *event = wp_transition_get_data (transition);
guint step = luaL_checkinteger (L, 2);
const char *step_str = NULL;
wp_trace_object (transition, "execute step: %u", step);
/* step number is the value on the stack at this point */
if (G_UNLIKELY (lua_gettable (L, lua_upvalueindex (1)) != LUA_TSTRING)) {
wp_critical_object (transition, "unknown step number %u", step);
wp_transition_return_error (transition, g_error_new (WP_DOMAIN_LIBRARY,
WP_LIBRARY_ERROR_INVARIANT, "unknown step number %u", step));
return 0;
}
step_str = lua_tostring (L, -1);
/* step string is now on the stack */
if (G_UNLIKELY (lua_gettable (L, lua_upvalueindex (1)) != LUA_TTABLE)) {
wp_critical_object (transition, "unknown step string '%s'", step_str);
wp_transition_return_error (transition, g_error_new (WP_DOMAIN_LIBRARY,
WP_LIBRARY_ERROR_INVARIANT, "unknown step string '%s", step_str));
return 0;
}
lua_pushliteral (L, "execute");
if (G_UNLIKELY (lua_gettable (L, -2) != LUA_TFUNCTION)) {
wp_critical_object (transition, "no execute function defined for '%s'",
step_str);
wp_transition_return_error (transition, g_error_new (WP_DOMAIN_LIBRARY,
WP_LIBRARY_ERROR_INVARIANT, "no execute function defined for '%s'",
step_str));
return 0;
}
wplua_pushboxed (L, WP_TYPE_EVENT, wp_event_ref (event));
wplua_pushobject (L, g_object_ref (transition));
lua_call (L, 2, 0);
return 0;
}
static void
async_event_hook_prepare_steps_table (lua_State *L, int steps_tbl)
{
const char *step_str = NULL;
int step_str_index = 0;
int step = WP_TRANSITION_STEP_CUSTOM_START;
steps_tbl = lua_absindex (L, steps_tbl);
lua_pushliteral (L, "start");
step_str_index = lua_absindex (L, -1);
step_str = lua_tostring (L, -1);
while (step != WP_TRANSITION_STEP_NONE) {
/* steps[step number] = step string */
lua_pushvalue (L, -1);
lua_seti (L, steps_tbl, step);
lua_pushvalue (L, -1);
if (lua_gettable (L, steps_tbl) != LUA_TTABLE)
luaL_error (L, "AsyncEventHook: expected '%s' in 'steps'", step_str);
lua_pushinteger (L, step++);
lua_setfield (L, -2, "idx");
lua_pushliteral (L, "next");
if (lua_gettable (L, -2) != LUA_TSTRING)
luaL_error (L, "AsyncEventHook: expected 'next' in step '%s'", step_str);
lua_replace (L, step_str_index);
step_str = lua_tostring (L, step_str_index);
if (!g_strcmp0 (step_str, "none"))
step = WP_TRANSITION_STEP_NONE;
lua_pushinteger (L, step);
lua_setfield (L, -2, "next_idx");
lua_settop (L, step_str_index);
}
lua_pop (L, 1);
}
static int
async_event_hook_new (lua_State *L)
{
WpEventHook *hook = NULL;
const gchar *name;
gint priority = 0;
gint priority_type = 0;
WpEventHookExecType type = 0;
GClosure *get_next_step = NULL;
GClosure *execute_step = NULL;
/* validate arguments */
luaL_checktype (L, 1, LUA_TTABLE);
lua_pushliteral (L, "name");
if (lua_gettable (L, 1) != LUA_TSTRING)
luaL_error (L, "AsyncEventHook: expected 'name' as string");
name = lua_tostring (L, -1);
lua_pop (L, 1);
lua_pushliteral (L, "priority");
priority_type = lua_gettable(L, 1);
if (priority_type == LUA_TNUMBER)
priority = lua_tointeger (L, -1);
else if (priority_type == LUA_TSTRING)
priority = wplua_lua_to_enum(L, -1,
WP_TYPE_EVENT_HOOK_DEFAULT_PRIORITY_TYPE);
else
luaL_error(L, "AsyncEventHook: expected 'priority' as number or string");
lua_pop (L, 1);
lua_pushliteral (L, "type");
if (lua_gettable (L, 1) != LUA_TSTRING)
luaL_error (L, "AsyncEventHook: expected 'type' as string");
type = wplua_lua_to_enum (L, -1, WP_TYPE_EVENT_HOOK_EXEC_TYPE);
lua_pop (L, 1);
lua_pushliteral (L, "steps");
if (lua_gettable (L, 1) != LUA_TTABLE)
luaL_error (L, "AsyncEventHook: expected 'steps' as table");
async_event_hook_prepare_steps_table (L, -1);
lua_pushvalue (L, -1);
lua_pushcclosure (L, async_event_hook_get_next_step, 1);
get_next_step = wplua_function_to_closure (L, -1);
lua_pop (L, 1);
lua_pushcclosure (L, async_event_hook_execute_step, 1);
execute_step = wplua_function_to_closure (L, -1);
lua_pop (L, 1);
hook = wp_async_event_hook_new (name, priority, type, get_next_step,
execute_step);
wplua_pushobject (L, hook);
lua_pushliteral (L, "interests");
if (lua_gettable (L, 1) == LUA_TTABLE) {
lua_pushnil (L);
while (lua_next (L, -2)) {
WpObjectInterest *interest =
wplua_checkboxed (L, -1, WP_TYPE_OBJECT_INTEREST);
wp_interest_event_hook_add_interest_full (WP_INTEREST_EVENT_HOOK (hook),
wp_object_interest_ref (interest));
lua_pop (L, 1);
}
}
lua_pop (L, 1);
return 1;
}
static int
transition_advance (lua_State *L)
{
WpTransition *t = wplua_checkobject (L, 1, WP_TYPE_TRANSITION);
wp_transition_advance (t);
return 0;
}
static int
transition_return_error (lua_State *L)
{
WpTransition *t = wplua_checkobject (L, 1, WP_TYPE_TRANSITION);
const char *err = luaL_checkstring (L, 2);
wp_transition_return_error (t, g_error_new (WP_DOMAIN_LIBRARY,
WP_LIBRARY_ERROR_OPERATION_FAILED, "%s", err));
return 0;
}
static const luaL_Reg transition_methods[] = {
{ "advance", transition_advance },
{ "return_error", transition_return_error },
{ NULL, NULL }
};
void
wp_lua_scripting_api_init (lua_State *L)
{
g_autoptr (GError) error = NULL;
luaL_newlib (L, glib_methods);
lua_setglobal (L, "GLib");
luaL_newlib (L, i18n_funcs);
lua_setglobal (L, "I18n");
luaL_newlib (L, log_funcs);
lua_setglobal (L, "WpLog");
luaL_newlib (L, core_funcs);
lua_setglobal (L, "WpCore");
luaL_newlib (L, plugin_funcs);
lua_setglobal (L, "WpPlugin");
luaL_newlib (L, settings_methods);
lua_setglobal (L, "WpSettings");
luaL_newlib (L, event_dispatcher_funcs);
lua_setglobal (L, "WpEventDispatcher");
wp_lua_scripting_pod_init (L);
wp_lua_scripting_json_init (L);
wplua_register_type_methods (L, G_TYPE_SOURCE,
NULL, source_methods);
wplua_register_type_methods (L, WP_TYPE_OBJECT,
NULL, object_methods);
wplua_register_type_methods (L, WP_TYPE_PROXY,
NULL, proxy_methods);
wplua_register_type_methods (L, WP_TYPE_GLOBAL_PROXY,
NULL, global_proxy_methods);
wplua_register_type_methods (L, WP_TYPE_OBJECT_INTEREST,
object_interest_new, object_interest_methods);
wplua_register_type_methods (L, WP_TYPE_OBJECT_MANAGER,
object_manager_new, object_manager_methods);
wplua_register_type_methods (L, WP_TYPE_METADATA,
NULL, metadata_methods);
wplua_register_type_methods (L, WP_TYPE_IMPL_METADATA,
impl_metadata_new, NULL);
wplua_register_type_methods (L, WP_TYPE_ENDPOINT,
NULL, endpoint_methods);
wplua_register_type_methods (L, WP_TYPE_DEVICE,
device_new, NULL);
wplua_register_type_methods (L, WP_TYPE_SPA_DEVICE,
spa_device_new, spa_device_methods);
wplua_register_type_methods (L, WP_TYPE_NODE,
node_new, node_methods);
wplua_register_type_methods (L, WP_TYPE_IMPL_NODE,
impl_node_new, NULL);
wplua_register_type_methods (L, WP_TYPE_PORT,
NULL, port_methods);
wplua_register_type_methods (L, WP_TYPE_LINK,
link_new, NULL);
wplua_register_type_methods (L, WP_TYPE_CLIENT,
NULL, client_methods);
wplua_register_type_methods (L, WP_TYPE_SESSION_ITEM,
session_item_new, session_item_methods);
wplua_register_type_methods (L, WP_TYPE_SI_ADAPTER,
NULL, si_adapter_methods);
wplua_register_type_methods (L, WP_TYPE_PIPEWIRE_OBJECT,
NULL, pipewire_object_methods);
wplua_register_type_methods (L, WP_TYPE_STATE,
state_new, state_methods);
wplua_register_type_methods (L, WP_TYPE_IMPL_MODULE,
impl_module_new, NULL);
wplua_register_type_methods (L, WP_TYPE_EVENT,
NULL, event_methods);
wplua_register_type_methods (L, WP_TYPE_EVENT_HOOK,
NULL, event_hook_methods);
wplua_register_type_methods (L, WP_TYPE_SIMPLE_EVENT_HOOK,
simple_event_hook_new, NULL);
wplua_register_type_methods (L, WP_TYPE_ASYNC_EVENT_HOOK,
async_event_hook_new, NULL);
wplua_register_type_methods (L, WP_TYPE_TRANSITION,
NULL, transition_methods);
if (!wplua_load_uri (L, URI_API, &error) ||
!wplua_pcall (L, 0, 0, &error)) {
wp_critical ("Failed to load api: %s", error->message);
}
}