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php-lua/lua.c

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/*
+----------------------------------------------------------------------+
| Lua |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author : Johannes Schlueter <johannes@php.net> |
| Xinchen Hui <laruence@php.net> |
| Marcelo Araujo <msaraujo@php.net> |
+----------------------------------------------------------------------+
$Id: lua.c 324348 2012-03-19 03:12:15Z laruence $
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "Zend/zend_exceptions.h"
#include "php_lua.h"
#include "lua_closure.h"
zend_class_entry *lua_ce;
zend_class_entry *lua_exception_ce;
static zend_object_handlers lua_object_handlers;
/** {{{ ARG_INFO
*
*/
ZEND_BEGIN_ARG_INFO_EX(arginfo_lua_call, 0, 0, 2)
ZEND_ARG_INFO(0, method)
ZEND_ARG_INFO(0, args)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_lua_assign, 0, 0, 2)
ZEND_ARG_INFO(0, name)
ZEND_ARG_INFO(0, value)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_lua_register, 0, 0, 2)
ZEND_ARG_INFO(0, name)
ZEND_ARG_INFO(0, function)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_lua_include, 0, 0, 1)
ZEND_ARG_INFO(0, file)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_lua_eval, 0, 0, 1)
ZEND_ARG_INFO(0, statements)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_lua_free, 0, 0, 1)
ZEND_ARG_INFO(0, closure)
ZEND_END_ARG_INFO()
/* }}} */
/* {{{ lua_module_entry
*/
zend_module_entry lua_module_entry = {
#if ZEND_MODULE_API_NO >= 20010901
STANDARD_MODULE_HEADER,
#endif
"lua",
NULL,
PHP_MINIT(lua),
PHP_MSHUTDOWN(lua),
NULL,
NULL,
PHP_MINFO(lua),
#if ZEND_MODULE_API_NO >= 20010901
PHP_LUA_VERSION,
#endif
STANDARD_MODULE_PROPERTIES
};
/* }}} */
#ifdef COMPILE_DL_LUA
ZEND_GET_MODULE(lua)
#endif
/** {{{ static void php_lua_stack_dump(lua_State* L)
* just for debug
*/
#ifdef PHP_LUA_DEBUG
static void php_lua_stack_dump(lua_State* L) {
int i = 1;
int n = lua_gettop(L);
printf("The Length of stack is %d\n", n);
for (; i <= n; ++i) {
int t = lua_type(L, i);
printf("%s:", lua_typename(L, t));
switch(t) {
case LUA_TNUMBER:
printf("%f", lua_tonumber(L, i));
break;
case LUA_TSTRING:
printf("%s", lua_tostring(L, i));
break;
case LUA_TTABLE:
break;
case LUA_TFUNCTION:
break;
case LUA_TNIL:
printf("NULL");
break;
case LUA_TBOOLEAN:
printf("%s", lua_toboolean(L, i) ? "TRUE" : "FALSE");
break;
default:
break;
}
printf("\n");
}
}
#endif
/* }}} */
/** {{{ static int php_lua_atpanic(lua_State *L)
*/
static int php_lua_atpanic(lua_State *L) {
TSRMLS_FETCH();
php_error_docref(NULL TSRMLS_CC, E_ERROR, "lua panic (%s)", lua_tostring(L, 1));
lua_pop(L, 1);
zend_bailout();
return 0;
}
/* }}} */
/** {{{ static int php_lua_print(lua_State *L)
*/
static int php_lua_print(lua_State *L) {
int i = 0;
TSRMLS_FETCH();
for (i = -lua_gettop(L) ; i<0; i++) {
zval *tmp = php_lua_get_zval_from_lua(L, i, NULL TSRMLS_CC);
zend_print_zval_r(tmp, 1 TSRMLS_CC);
zval_ptr_dtor(&tmp);
}
return 0;
}
/* }}} */
/** {{{ static void * php_lua_alloc_function(void *ud, void *ptr, size_t osize, size_t nsize)
* the memory-allocation function used by Lua states.
*/
static void * php_lua_alloc_function(void *ud, void *ptr, size_t osize, size_t nsize) {
(void) osize;
(void) nsize;
if (nsize) {
if (ptr) {
return erealloc(ptr, nsize);
}
return emalloc(nsize);
} else {
if (ptr) {
efree(ptr);
}
}
return NULL;
}
/* }}} */
/** {{{ static void php_lua_dtor_object(void *object, zend_object_handle handle TSRMLS_DC)
* the dtor function for lua object
*/
static void php_lua_dtor_object(void *object, zend_object_handle handle TSRMLS_DC) {
php_lua_object *lua_obj = (php_lua_object *)object;
zend_object_std_dtor(&(lua_obj->obj) TSRMLS_CC);
if (lua_obj->L) {
lua_close(lua_obj->L);
}
efree(lua_obj);
}
/* }}} */
/** {{{ static zend_object_value php_lua_create_object(zend_class_entry *ce TSRMLS_DC)
*
* the create object handler for lua
*/
static zend_object_value php_lua_create_object(zend_class_entry *ce TSRMLS_DC) {
zend_object_value obj = {0};
php_lua_object *lua_obj = NULL;
lua_State *L = NULL;
L = lua_newstate(php_lua_alloc_function, NULL);
lua_atpanic(L, php_lua_atpanic);
lua_obj = emalloc(sizeof(php_lua_object));
if (!lua_obj) {
php_error_docref(NULL TSRMLS_CC, E_ERROR, "alloc memory for lua object failed");
}
lua_obj->L = L;
zend_object_std_init(&(lua_obj->obj), ce TSRMLS_CC);
#if (PHP_MAJOR_VERSION == 5) && (PHP_MINOR_VERSION < 4)
zend_hash_copy(lua_obj->obj.properties, &ce->default_properties,
#if (PHP_MINOR_VERSION < 3)
(copy_ctor_func_t) zval_add_ref,
#else
zval_copy_property_ctor(ce),
#endif
(void *)0, sizeof(zval *));
#elif (PHP_MAJOR_VERSION == 5) && (PHP_MINOR_VERSION > 3)
object_properties_init(&(lua_obj->obj), ce);
#endif
obj.handle = zend_objects_store_put(lua_obj, php_lua_dtor_object, NULL, NULL TSRMLS_CC);
obj.handlers = &lua_object_handlers;
return obj;
}
/* }}} */
/** {{{ static zval * php_lua_read_property(zval *object, zval *member, int type TSRMLS_DC)
*/
#if ((PHP_MAJOR_VERSION == 5) && (PHP_MINOR_VERSION < 4)) || (PHP_MAJOR_VERSION < 5)
static zval * php_lua_read_property(zval *object, zval *member, int type TSRMLS_DC) {
#else
static zval * php_lua_read_property(zval *object, zval *member, int type, const struct _zend_literal *key TSRMLS_DC) {
#endif
zval *retval = NULL;
lua_State *L = NULL;
zval *tmp_member = NULL;
#if ((PHP_MAJOR_VERSION == 5) && (PHP_MINOR_VERSION > 3))
(void)key;
#endif
if (type != BP_VAR_R) {
MAKE_STD_ZVAL(retval);
ZVAL_NULL(retval);
return retval;
}
if (Z_TYPE_P(member) != IS_STRING) {
ALLOC_ZVAL(tmp_member);
*tmp_member = *member;
INIT_PZVAL(tmp_member);
zval_copy_ctor(tmp_member);
convert_to_string(tmp_member);
member = tmp_member;
}
L = Z_LUAVAL_P(object);
#if (LUA_VERSION_NUM < 502)
lua_getfield(L, LUA_GLOBALSINDEX, Z_STRVAL_P(member));
#else
lua_getglobal(L, Z_STRVAL_P(member));
#endif
retval = php_lua_get_zval_from_lua(L, -1, object TSRMLS_CC);
Z_DELREF_P(retval);
lua_pop(L, 1);
if (tmp_member) {
zval_ptr_dtor(&tmp_member);
}
return retval;
}
/* }}} */
/** {{{ static void php_lua_write_property(zval *object, zval *member, zval *value TSRMLS_DC)
*/
#if ((PHP_MAJOR_VERSION == 5) && (PHP_MINOR_VERSION < 4)) || (PHP_MAJOR_VERSION < 5)
static void php_lua_write_property(zval *object, zval *member, zval *value TSRMLS_DC) {
#else
static void php_lua_write_property(zval *object, zval *member, zval *value, const struct _zend_literal *key TSRMLS_DC) {
#endif
lua_State *L = NULL;
zval *tmp_member = NULL;
#if ((PHP_MAJOR_VERSION == 5) && (PHP_MINOR_VERSION > 3))
(void)key;
#endif
if (Z_TYPE_P(member) != IS_STRING) {
ALLOC_ZVAL(tmp_member);
*tmp_member = *member;
INIT_PZVAL(tmp_member);
zval_copy_ctor(tmp_member);
convert_to_string(tmp_member);
member = tmp_member;
}
L = Z_LUAVAL_P(object);
#if (LUA_VERSION_NUM < 502)
php_lua_send_zval_to_lua(L, member TSRMLS_CC);
php_lua_send_zval_to_lua(L, value TSRMLS_CC);
lua_settable(L, LUA_GLOBALSINDEX);
#else
php_lua_send_zval_to_lua(L, value TSRMLS_CC);
lua_setglobal(L, Z_STRVAL_P(member));
#endif
if (tmp_member) {
zval_ptr_dtor(&tmp_member);
}
}
/* }}} */
/** {{{ static int php_lua_call_callback(lua_State *L)
*/
static int php_lua_call_callback(lua_State *L) {
int order = 0;
zval *return_value = NULL;
zval **func = NULL;
zval *callbacks = NULL;
TSRMLS_FETCH();
order = lua_tonumber(L, lua_upvalueindex(1));
callbacks = zend_read_static_property(lua_ce, ZEND_STRL("_callbacks"), 1 TSRMLS_CC);
if (ZVAL_IS_NULL(callbacks)) {
return 0;
}
MAKE_STD_ZVAL(return_value);
if (zend_hash_index_find(Z_ARRVAL_P(callbacks), order, (void **)&func) == FAILURE) {
return 0;
}
if (!zend_is_callable(*func, 0, NULL TSRMLS_CC)) {
return 0;
} else {
zval **params = NULL;
int i = 0;
int arg_num = lua_gettop(L);
params = ecalloc(arg_num, sizeof(zval));
for (; i<arg_num; i++) {
params[i] = php_lua_get_zval_from_lua(L, -(arg_num-i), NULL TSRMLS_CC);
}
call_user_function(EG(function_table), NULL, *func, return_value, arg_num, params TSRMLS_CC);
php_lua_send_zval_to_lua(L, return_value TSRMLS_CC);
for (i=0; i<arg_num; i++) {
zval_ptr_dtor(&params[i]);
}
efree(params);
zval_ptr_dtor(&return_value);
return 1;
}
}
/* }}} */
/** {{{ zval * php_lua_get_zval_from_lua(lua_State *L, int index, zval *lua_obj TSRMLS_DC)
*/
zval * php_lua_get_zval_from_lua(lua_State *L, int index, zval *lua_obj TSRMLS_DC) {
zval *retval;
MAKE_STD_ZVAL(retval);
ZVAL_NULL(retval);
switch (lua_type(L, index)) {
case LUA_TNIL:
ZVAL_NULL(retval);
break;
case LUA_TBOOLEAN:
ZVAL_BOOL(retval, lua_toboolean(L, index));
break;
case LUA_TNUMBER:
ZVAL_DOUBLE(retval, lua_tonumber(L, index));
break;
case LUA_TSTRING:
{
char *val = NULL;
size_t len = 0;
val = (char *)lua_tolstring(L, index, &len);
ZVAL_STRINGL(retval, val, len, 1);
}
break;
case LUA_TTABLE:
array_init(retval);
lua_pushnil(L); /* first key */
while (lua_next(L, index-1) != 0) {
zval *key = NULL;
zval *val = NULL;
/* uses 'key' (at index -2) and 'value' (at index -1) */
key = php_lua_get_zval_from_lua(L, -2, lua_obj TSRMLS_CC);
val = php_lua_get_zval_from_lua(L, -1, lua_obj TSRMLS_CC);
if (!key || !val) {
/* there is a warning already in php_lua_get_zval_from_lua */
break;
}
switch(Z_TYPE_P(key)) {
case IS_DOUBLE:
case IS_LONG:
add_index_zval(retval, Z_DVAL_P(key), val);
break;
case IS_STRING:
add_assoc_zval(retval, Z_STRVAL_P(key), val);
break;
case IS_ARRAY:
case IS_OBJECT:
default:
break;
}
lua_pop(L, 1);
zval_ptr_dtor(&key);
}
break;
case LUA_TFUNCTION:
{
long ref_id = 0;
if (!lua_obj) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "corrupted Lua object");
break;
}
lua_pushvalue(L, index);
ref_id = luaL_ref(L, LUA_REGISTRYINDEX);
if (!php_lua_closure_instance(retval, ref_id, lua_obj TSRMLS_CC)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "failed to initialize closure object");
}
}
break;
case LUA_TUSERDATA:
case LUA_TTHREAD:
case LUA_TLIGHTUSERDATA:
default:
php_error_docref(NULL TSRMLS_CC, E_WARNING, "unsupported type '%s' for php",
lua_typename(L, lua_type(L, index)));
}
return retval;
}
/* }}} */
/** {{{ int php_lua_send_zval_to_lua(lua_State *L, zval *val TSRMLS_DC)
*/
int php_lua_send_zval_to_lua(lua_State *L, zval *val TSRMLS_DC) {
switch (Z_TYPE_P(val)) {
case IS_BOOL:
lua_pushboolean(L, Z_BVAL_P(val));
break;
case IS_NULL:
lua_pushnil(L);
break;
case IS_DOUBLE:
lua_pushnumber(L, Z_DVAL_P(val));
break;
case IS_LONG:
lua_pushnumber(L, Z_LVAL_P(val));
break;
case IS_STRING:
lua_pushlstring(L, Z_STRVAL_P(val), Z_STRLEN_P(val));
break;
case IS_OBJECT:
case IS_ARRAY:
{
if (zend_is_callable(val, 0, NULL TSRMLS_CC)) {
zval* callbacks = NULL;
callbacks = zend_read_static_property(lua_ce, ZEND_STRL("_callbacks"), 1 TSRMLS_CC);
if (ZVAL_IS_NULL(callbacks)) {
array_init(callbacks);
}
lua_pushnumber(L, zend_hash_num_elements(Z_ARRVAL_P(callbacks)));
lua_pushcclosure(L, php_lua_call_callback, 1);
zval_add_ref(&val);
add_next_index_zval(callbacks, val);
} else {
HashTable *ht = NULL;
zval **ppzval = NULL;
ht = HASH_OF(val);
if (++ht->nApplyCount > 1) {
php_error_docref(NULL TSRMLS_CC, E_ERROR, "recursion found");
--ht->nApplyCount;
break;
}
lua_newtable(L);
for(zend_hash_internal_pointer_reset(ht);
zend_hash_get_current_data(ht, (void **)&ppzval) == SUCCESS;
zend_hash_move_forward(ht)) {
char *key = NULL;
int len = 0;
long idx = 0;
zval *zkey= NULL;
switch(zend_hash_get_current_key_ex(ht, &key, &len, &idx, 0, NULL)) {
case HASH_KEY_IS_STRING :
MAKE_STD_ZVAL(zkey);
ZVAL_STRINGL(zkey, key, len - 1, 1);
break;
case HASH_KEY_IS_LONG:
if (idx == 0) {
php_error_docref(NULL TSRMLS_CC, E_STRICT,
"attempt to pass an array index begin with 0 to lua");
}
MAKE_STD_ZVAL(zkey);
ZVAL_LONG(zkey, idx);
break;
}
php_lua_send_zval_to_lua(L, zkey TSRMLS_CC);
php_lua_send_zval_to_lua(L, *ppzval TSRMLS_CC);
lua_settable(L, -3);
zval_ptr_dtor(&zkey);
}
--ht->nApplyCount;
}
}
break;
default:
php_error_docref(NULL TSRMLS_CC, E_ERROR, "unsupported type `%s' for lua"
, zend_zval_type_name(val));
lua_pushnil(L);
return 1;
}
return 0;
}
/* }}} */
/*** {{{ static int php_lua_arg_apply_func(void *data, void *L TSRMLS_DC)
*/
static int php_lua_arg_apply_func(void *data, void *L TSRMLS_DC) {
php_lua_send_zval_to_lua((lua_State*)L, *(zval**)data TSRMLS_CC);
return ZEND_HASH_APPLY_KEEP;
} /* }}} */
/** {{{ static zval * php_lua_call_lua_function(zval *lua_obj, zval *func, zval *args, int use_self TSRMLS_DC)
*/
static zval * php_lua_call_lua_function(zval *lua_obj, zval *func, zval *args, int use_self TSRMLS_DC) {
int bp = 0;
int sp = 0;
int arg_num = 0;
zval *ret = NULL;
lua_State *L = NULL;
L = Z_LUAVAL_P(lua_obj);
if (IS_ARRAY == Z_TYPE_P(func)) {
zval **t = NULL;
zval **f = NULL;
if (zend_hash_index_find(Z_ARRVAL_P(func), 0, (void **)&t) == FAILURE || Z_TYPE_PP(t) != IS_STRING
|| zend_hash_index_find(Z_ARRVAL_P(func), 1, (void **)&f) == FAILURE || Z_TYPE_PP(f) != IS_STRING) {
/* as johannes suggesting use exceptioni to distinguish the error from a lua function return false
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"invalid lua function, argument must be an array which contain two elements: array('table', 'method')");
*/
zend_throw_exception_ex(lua_exception_ce, 0 TSRMLS_CC,
"invalid lua function, argument must be an array which contain two elements: array('table', 'method')");
return NULL;
}
#if (LUA_VERSION_NUM < 502)
lua_getfield(L, LUA_GLOBALSINDEX, Z_STRVAL_PP(t));
#else
lua_getglobal(L, Z_STRVAL_PP(t));
#endif
if (LUA_TTABLE != lua_type(L, lua_gettop(L))) {
lua_pop(L, -1);
zend_throw_exception_ex(lua_exception_ce, 0 TSRMLS_CC, "invalid lua table '%s'", Z_STRVAL_PP(t));
return NULL;
}
bp = lua_gettop(L);
lua_getfield(L, -1, Z_STRVAL_PP(f));
if (LUA_TFUNCTION != lua_type(L, lua_gettop(L))) {
lua_pop(L, -2);
zend_throw_exception_ex(lua_exception_ce, 0 TSRMLS_CC, "invalid lua table function '%s'.%s", Z_STRVAL_PP(t), Z_STRVAL_PP(f));
return NULL;
}
} else if (IS_STRING == Z_TYPE_P(func)) {
bp = lua_gettop(L);
#if (LUA_VERSION_NUM < 502)
lua_getfield(L, LUA_GLOBALSINDEX, Z_STRVAL_P(func));
#else
lua_getglobal(L, Z_STRVAL_P(func));
#endif
if (LUA_TFUNCTION != lua_type(L, lua_gettop(L))) {
lua_pop(L, -1);
zend_throw_exception_ex(lua_exception_ce, 0 TSRMLS_CC, "invalid lua function '%s'", Z_STRVAL_P(func));
return NULL;
}
} else if (IS_OBJECT == Z_TYPE_P(func)
&& instanceof_function(Z_OBJCE_P(func), php_lua_get_closure_ce() TSRMLS_CC)) {
zval *closure = zend_read_property(php_lua_get_closure_ce(), func, ZEND_STRL("_closure"), 1 TSRMLS_CC);
if (!Z_LVAL_P(closure)) {
zend_throw_exception_ex(lua_exception_ce, 0 TSRMLS_CC, "invalid lua closure");
return NULL;
}
bp = lua_gettop(L);
lua_rawgeti(L, LUA_REGISTRYINDEX, Z_LVAL_P(closure));
if (LUA_TFUNCTION != lua_type(L, lua_gettop(L))) {
lua_pop(L, -1);
zend_throw_exception_ex(lua_exception_ce, 0 TSRMLS_CC, "call to lua closure failed");
return NULL;
}
}
if (use_self) {
lua_pushvalue(L, -2);
lua_remove(L, -2);
arg_num++;
}
if (args) {
arg_num += zend_hash_num_elements(Z_ARRVAL_P(args));
zend_hash_apply_with_argument(Z_ARRVAL_P(args), php_lua_arg_apply_func, (void *)L TSRMLS_CC);
}
if (lua_pcall(L, arg_num, LUA_MULTRET, 0) != 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"call to lua function %s failed", lua_tostring(L, -1));
lua_pop(L, lua_gettop(L) - bp);
return NULL;
}
sp = lua_gettop(L) - bp;
if (!sp) {
MAKE_STD_ZVAL(ret);
ZVAL_NULL(ret);
} else if (sp == 1) {
ret = php_lua_get_zval_from_lua(L, -1, lua_obj TSRMLS_CC);
} else {
int i = 0;
MAKE_STD_ZVAL(ret);
array_init(ret);
for (i = -sp; i < 0; i++) {
zval *tmp = php_lua_get_zval_from_lua(L, i, lua_obj TSRMLS_CC);
add_next_index_zval(ret, tmp);
}
}
lua_pop(L, sp);
if (IS_ARRAY == Z_TYPE_P(func)) {
lua_pop(L, -1);
}
return ret;
} /* }}} */
/** {{{ proto Lua::eval(string $lua_chunk)
* eval a lua chunk
*/
PHP_METHOD(lua, eval) {
lua_State *L = NULL;
char *statements = NULL;
long bp, len = 0;
L = Z_LUAVAL_P(getThis());
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &statements, &len) == FAILURE) {
return;
}
bp = lua_gettop(L);
if (luaL_loadbuffer(L, statements, len, "line") || lua_pcall(L, 0, LUA_MULTRET, 0)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"lua error: %s", lua_tostring(L, -1));
lua_pop(L, 1);
RETURN_FALSE;
} else {
zval *tmp = NULL;
int ret_count = 0;
int i = 0;
ret_count = lua_gettop(L) - bp;
if (ret_count > 1) {
array_init(return_value);
for (i = -ret_count; i<0; i++) {
tmp = php_lua_get_zval_from_lua(L, i, getThis() TSRMLS_CC);
add_next_index_zval(return_value, tmp);
}
} else if (ret_count) {
zval *tmp = php_lua_get_zval_from_lua(L, -1, getThis() TSRMLS_CC);
RETURN_ZVAL(tmp, 1, 1);
}
lua_pop(L, ret_count);
}
}
/* }}} */
/** {{{ proto Lua::include(string $file)
* run a lua script file
*/
PHP_METHOD(lua, include) {
lua_State *L = NULL;
char *file = NULL;
long bp, len = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &file, &len) == FAILURE) {
return;
}
if (php_check_open_basedir(file TSRMLS_CC)
#if ((PHP_MAJOR_VERSION == 5) && (PHP_MINOR_VERSION < 4)) || (PHP_MAJOR_VERSION < 5)
|| (PG(safe_mode)
&& !php_checkuid(file, "rb+", CHECKUID_CHECK_MODE_PARAM))
#endif
){
RETURN_FALSE;
}
L = Z_LUAVAL_P(getThis());
bp = lua_gettop(L);
if (luaL_dofile(L, file)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"lua error: %s", lua_tostring(L, -1));
lua_pop(L, 1);
RETURN_FALSE;
} else {
zval *tmp = NULL;
int ret_count = 0;
int i = 0;
ret_count = lua_gettop(L) - bp;
if (ret_count > 1) {
array_init(return_value);
for (i = -ret_count; i<0; i++) {
tmp = php_lua_get_zval_from_lua(L, i, getThis() TSRMLS_CC);
add_next_index_zval(return_value, tmp);
}
} else if (ret_count) {
zval *tmp = php_lua_get_zval_from_lua(L, -1, getThis() TSRMLS_CC);
RETURN_ZVAL(tmp, 1, 1);
}
lua_pop(L, ret_count);
}
}
/* }}} */
/** {{{ proto Lua::call(mixed $function, array $args, bool $use_self)
*/
PHP_METHOD(lua, call) {
long u_self = 0;
zval *args = NULL;
zval *func = NULL;
zval *ret = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|al", &func, &args, &u_self) == FAILURE) {
return;
}
if ((ret = php_lua_call_lua_function(getThis(), func, args, u_self TSRMLS_CC))) {
RETURN_ZVAL(ret, 1, 1);
}
RETURN_FALSE;
}
/* }}} */
/** {{{ proto Lua::assign(string $name, mix $value)
*/
PHP_METHOD(lua, assign) {
char *name = NULL;
zval *value = NULL;
lua_State *L = NULL;
int len = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sz", &name, &len, &value) == FAILURE) {
return;
}
L = Z_LUAVAL_P(getThis());
php_lua_send_zval_to_lua(L, value TSRMLS_CC);
#if (LUA_VERSION_NUM < 502)
lua_setfield(L, LUA_GLOBALSINDEX, name);
#else
lua_setglobal(L, name);
#endif
RETURN_ZVAL(getThis(), 1, 0);
}
/* }}} */
/** {{{ proto Lua::registerCallback(string $name, mix $value)
*/
PHP_METHOD(lua, registerCallback) {
char *name = NULL;
long len = 0;
zval *func = NULL;
lua_State *L = NULL;
zval* callbacks = NULL;
L = Z_LUAVAL_P(getThis());
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC,"sz", &name, &len, &func) == FAILURE) {
return;
}
callbacks = zend_read_static_property(lua_ce, ZEND_STRL("_callbacks"), 1 TSRMLS_CC);
if (ZVAL_IS_NULL(callbacks)) {
array_init(callbacks);
}
if (zend_is_callable(func, 0, NULL TSRMLS_CC)) {
lua_pushnumber(L, zend_hash_num_elements(Z_ARRVAL_P(callbacks)));
lua_pushcclosure(L, php_lua_call_callback, 1);
lua_setglobal(L, name);
} else {
zend_throw_exception_ex(lua_exception_ce, 0 TSRMLS_CC, "invalid php callback");
RETURN_FALSE;
}
zval_add_ref(&func);
add_next_index_zval(callbacks, func);
RETURN_ZVAL(getThis(), 1, 0);
}
/* }}} */
/** {{{ proto Lua::getVersion()
*/
PHP_METHOD(lua, getVersion) {
RETURN_STRING(LUA_RELEASE, 1);
}
/* }}} */
/** {{{ proto Lua::__construct()
*/
PHP_METHOD(lua, __construct) {
lua_State *L = Z_LUAVAL_P(getThis());
luaL_openlibs(L);
lua_register(L, "print", php_lua_print);
if (ZEND_NUM_ARGS()) {
PHP_MN(lua_include)(INTERNAL_FUNCTION_PARAM_PASSTHRU);
}
}
/* }}} */
/* {{{ lua_class_methods[]
*
*/
zend_function_entry lua_class_methods[] = {
PHP_ME(lua, __construct, NULL, ZEND_ACC_PUBLIC|ZEND_ACC_CTOR)
PHP_ME(lua, eval, arginfo_lua_eval, ZEND_ACC_PUBLIC)
PHP_ME(lua, include, arginfo_lua_include, ZEND_ACC_PUBLIC)
PHP_ME(lua, call, arginfo_lua_call, ZEND_ACC_PUBLIC)
PHP_ME(lua, assign, arginfo_lua_assign, ZEND_ACC_PUBLIC)
PHP_ME(lua, getVersion, NULL, ZEND_ACC_PUBLIC|ZEND_ACC_ALLOW_STATIC)
PHP_ME(lua, registerCallback, arginfo_lua_register, ZEND_ACC_PUBLIC)
PHP_MALIAS(lua, __call, call, arginfo_lua_call, ZEND_ACC_PUBLIC)
{NULL, NULL, NULL}
};
/* }}} */
/* {{{ PHP_MINIT_FUNCTION
*/
PHP_MINIT_FUNCTION(lua) {
zend_class_entry ce;
INIT_CLASS_ENTRY(ce, "Lua", lua_class_methods);
lua_ce = zend_register_internal_class(&ce TSRMLS_CC);
lua_ce->create_object = php_lua_create_object;
memcpy(&lua_object_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
lua_object_handlers.write_property = php_lua_write_property;
lua_object_handlers.read_property = php_lua_read_property;
lua_ce->ce_flags |= ZEND_ACC_FINAL;
zend_declare_property_null(lua_ce, ZEND_STRL("_callbacks"), ZEND_ACC_STATIC|ZEND_ACC_PRIVATE TSRMLS_CC);
zend_declare_class_constant_string(lua_ce, ZEND_STRL("LUA_VERSION"), LUA_RELEASE TSRMLS_CC);
php_lua_closure_register(TSRMLS_C);
INIT_CLASS_ENTRY(ce, "LuaException", NULL);
lua_exception_ce = zend_register_internal_class_ex(&ce,
#if (PHP_MAJOR_VERSION == 5) && (PHP_MINOR_VERSION < 2)
zend_exception_get_default(),
#else
zend_exception_get_default(TSRMLS_C),
#endif
NULL TSRMLS_CC);
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MSHUTDOWN_FUNCTION
*/
PHP_MSHUTDOWN_FUNCTION(lua)
{
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINFO_FUNCTION
*/
PHP_MINFO_FUNCTION(lua)
{
php_info_print_table_start();
php_info_print_table_header(2, "lua support", "enabled");
php_info_print_table_row(2, "lua extension version", PHP_LUA_VERSION);
php_info_print_table_row(2, "lua release", LUA_RELEASE);
php_info_print_table_row(2, "lua copyright", LUA_COPYRIGHT);
php_info_print_table_row(2, "lua authors", LUA_AUTHORS);
php_info_print_table_end();
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: noet sw=4 ts=4 fdm=marker
* vim<600: noet sw=4 ts=4
*/
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