Lucas Schwiderski
366e08498e
This provides a way to query the current state for the primary data structures, as well as common setters.
51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
#include "callback.h"
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#include "pulseaudio.h"
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simple_callback_data* prepare_lua_callback(lua_State* L) {
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// Prepare a new thread to run the callback with
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lua_pushstring(L, LUA_PULSEAUDIO);
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lua_rawget(L, LUA_REGISTRYINDEX);
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lua_pushstring(L, LUA_PA_REGISTRY);
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lua_gettable(L, -2);
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lua_State* thread = lua_newthread(L);
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int thread_ref = luaL_ref(L, -2);
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// Copy the callback function to the thread's stack
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lua_pushvalue(L, 2);
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lua_xmove(L, thread, 1);
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simple_callback_data* data = malloc(sizeof(struct simple_callback_data));
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data->L = thread;
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data->thread_ref = thread_ref;
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data->is_list = false;
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return data;
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}
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void free_lua_callback(simple_callback_data* data) {
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lua_State* L = data->L;
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// Remove thread reference
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lua_pushstring(L, LUA_PULSEAUDIO);
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lua_rawget(L, LUA_REGISTRYINDEX);
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lua_pushstring(L, LUA_PA_REGISTRY);
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lua_gettable(L, -2);
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luaL_unref(L, -1, data->thread_ref);
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free(data);
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}
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void success_callback(pa_context* c, int success, void* userdata) {
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simple_callback_data* data = (simple_callback_data*) userdata;
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lua_State* L = data->L;
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lua_pushnil(L);
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lua_pushboolean(L, success);
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lua_call(L, 2, 0);
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free_lua_callback(data);
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}
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