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/*!A cross-platform build utility based on Lua
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Copyright (C) 2015-present, Xmake Open Source Community.
*
* @author ruki
* @file queue_pop.c
*
*/
/* //////////////////////////////////////////////////////////////////////////////////////
* trace
*/
#define TB_TRACE_MODULE_NAME "thread_queue"
#define TB_TRACE_MODULE_DEBUG (0)
/* //////////////////////////////////////////////////////////////////////////////////////
* includes
*/
#include "prefix.h"
/* //////////////////////////////////////////////////////////////////////////////////////
* implementation
*/
tb_int_t xm_thread_queue_pop(lua_State *lua) {
tb_assert_and_check_return_val(lua, 0);
xm_thread_queue_t *thread_queue = xm_thread_queue_get(lua, 1);
tb_assert_and_check_return_val(thread_queue && thread_queue->handle, 0);
if (tb_queue_null(thread_queue->handle)) {
lua_pushnil(lua);
lua_pushliteral(lua, "the thread queue is empty");
return 2;
}
xm_thread_value_t *item = (xm_thread_value_t *)tb_queue_get(thread_queue->handle);
tb_assert_and_check_return_val(item, 0);
tb_bool_t ok = tb_false;
switch (item->kind) {
case XM_THREAD_VALUE_STR:
if (item->size) {
lua_pushlstring(lua, item->u.string, item->size);
} else {
lua_pushliteral(lua, "");
}
ok = tb_true;
break;
case XM_THREAD_VALUE_INT:
lua_pushinteger(lua, item->u.integer);
ok = tb_true;
break;
case XM_THREAD_VALUE_NUM:
lua_pushnumber(lua, item->u.number);
ok = tb_true;
break;
case XM_THREAD_VALUE_BOOL:
lua_pushboolean(lua, item->u.boolean);
ok = tb_true;
break;
case XM_THREAD_VALUE_NIL:
lua_pushnil(lua);
ok = tb_true;
break;
default:
break;
}
if (!ok) {
lua_pushnil(lua);
lua_pushliteral(lua, "invalid thread queue item");
return 2;
}
tb_queue_pop(thread_queue->handle);
return 1;
}
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