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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2001 Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 0.92 of the Zend license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://www.zend.com/license/0_92.txt. |
| If you did not receive a copy of the Zend license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <andi@zend.com> |
| Zeev Suraski <zeev@zend.com> |
+----------------------------------------------------------------------+
*/
#include "zend.h"
#include "zend_constants.h"
#include "zend_variables.h"
#include "zend_operators.h"
#include "zend_globals.h"
void free_zend_constant(zend_constant *c)
{
if (!(c->flags & CONST_PERSISTENT)) {
zval_dtor(&c->value);
}
free(c->name);
}
void copy_zend_constant(zend_constant *c)
{
c->name = zend_strndup(c->name, c->name_len);
if (!(c->flags & CONST_PERSISTENT)) {
zval_copy_ctor(&c->value);
}
}
void zend_copy_constants(HashTable *target, HashTable *source)
{
zend_constant tmp_constant;
zend_hash_copy(target, source, (copy_ctor_func_t) copy_zend_constant, &tmp_constant, sizeof(zend_constant));
}
static int clean_non_persistent_constant(zend_constant *c)
{
if (c->flags & CONST_PERSISTENT) {
return 0;
} else {
return 1;
}
}
static int clean_module_constant(zend_constant *c, int *module_number)
{
if (c->module_number == *module_number) {
return 1;
} else {
return 0;
}
}
void clean_module_constants(int module_number)
{
ELS_FETCH();
zend_hash_apply_with_argument(EG(zend_constants), (int (*)(void *,void *)) clean_module_constant, (void *) &module_number);
}
int zend_startup_constants(ELS_D)
{
#ifdef ZEND_WIN32
DWORD dwBuild=0;
DWORD dwVersion = GetVersion();
DWORD dwWindowsMajorVersion = (DWORD)(LOBYTE(LOWORD(dwVersion)));
DWORD dwWindowsMinorVersion = (DWORD)(HIBYTE(LOWORD(dwVersion)));
#endif
EG(zend_constants) = (HashTable *) malloc(sizeof(HashTable));
if (zend_hash_init(EG(zend_constants), 20, NULL, ZEND_CONSTANT_DTOR, 1)==FAILURE) {
return FAILURE;
}
return SUCCESS;
}
void zend_register_standard_constants(ELS_D)
{
REGISTER_MAIN_LONG_CONSTANT("E_ERROR", E_ERROR, CONST_PERSISTENT | CONST_CS);
REGISTER_MAIN_LONG_CONSTANT("E_WARNING", E_WARNING, CONST_PERSISTENT | CONST_CS);
REGISTER_MAIN_LONG_CONSTANT("E_PARSE", E_PARSE, CONST_PERSISTENT | CONST_CS);
REGISTER_MAIN_LONG_CONSTANT("E_NOTICE", E_NOTICE, CONST_PERSISTENT | CONST_CS);
REGISTER_MAIN_LONG_CONSTANT("E_CORE_ERROR", E_CORE_ERROR, CONST_PERSISTENT | CONST_CS);
REGISTER_MAIN_LONG_CONSTANT("E_CORE_WARNING", E_CORE_WARNING, CONST_PERSISTENT | CONST_CS);
REGISTER_MAIN_LONG_CONSTANT("E_COMPILE_ERROR", E_COMPILE_ERROR, CONST_PERSISTENT | CONST_CS);
REGISTER_MAIN_LONG_CONSTANT("E_COMPILE_WARNING", E_COMPILE_WARNING, CONST_PERSISTENT | CONST_CS);
REGISTER_MAIN_LONG_CONSTANT("E_USER_ERROR", E_USER_ERROR, CONST_PERSISTENT | CONST_CS);
REGISTER_MAIN_LONG_CONSTANT("E_USER_WARNING", E_USER_WARNING, CONST_PERSISTENT | CONST_CS);
REGISTER_MAIN_LONG_CONSTANT("E_USER_NOTICE", E_USER_NOTICE, CONST_PERSISTENT | CONST_CS);
REGISTER_MAIN_LONG_CONSTANT("E_ALL", E_ALL, CONST_PERSISTENT | CONST_CS);
/* true/false constants */
{
zend_constant c;
c.value.type = IS_BOOL;
c.flags = CONST_PERSISTENT;
c.module_number = 0;
c.name = zend_strndup(ZEND_STRL("TRUE"));
c.name_len = sizeof("TRUE");
c.value.value.lval = 1;
c.value.type = IS_BOOL;
zend_register_constant(&c ELS_CC);
c.name = zend_strndup(ZEND_STRL("FALSE"));
c.name_len = sizeof("FALSE");
c.value.value.lval = 0;
c.value.type = IS_BOOL;
zend_register_constant(&c ELS_CC);
c.name = zend_strndup(ZEND_STRL("ZEND_THREAD_SAFE"));
c.name_len = sizeof("ZEND_THREAD_SAFE");
c.value.value.lval = ZTS_V;
c.value.type = IS_BOOL;
zend_register_constant(&c ELS_CC);
c.name = zend_strndup(ZEND_STRL("NULL"));
c.name_len = sizeof("NULL");
c.value.type = IS_NULL;
zend_register_constant(&c ELS_CC);
}
}
int zend_shutdown_constants(ELS_D)
{
zend_hash_destroy(EG(zend_constants));
free(EG(zend_constants));
return SUCCESS;
}
void clean_non_persistent_constants(void)
{
ELS_FETCH();
zend_hash_apply(EG(zend_constants), (int (*)(void *)) clean_non_persistent_constant);
}
ZEND_API void zend_register_long_constant(char *name, uint name_len, long lval, int flags, int module_number ELS_DC)
{
zend_constant c;
c.value.type = IS_LONG;
c.value.value.lval = lval;
c.flags = flags;
c.name = zend_strndup(name,name_len);
c.name_len = name_len;
c.module_number = module_number;
zend_register_constant(&c ELS_CC);
}
ZEND_API void zend_register_double_constant(char *name, uint name_len, double dval, int flags, int module_number ELS_DC)
{
zend_constant c;
c.value.type = IS_DOUBLE;
c.value.value.dval = dval;
c.flags = flags;
c.name = zend_strndup(name,name_len);
c.name_len = name_len;
c.module_number = module_number;
zend_register_constant(&c ELS_CC);
}
ZEND_API void zend_register_stringl_constant(char *name, uint name_len, char *strval, uint strlen, int flags, int module_number ELS_DC)
{
zend_constant c;
c.value.type = IS_STRING;
c.value.value.str.val = strval;
c.value.value.str.len = strlen;
c.flags = flags;
c.name = zend_strndup(name,name_len);
c.name_len = name_len;
c.module_number = module_number;
zend_register_constant(&c ELS_CC);
}
ZEND_API void zend_register_string_constant(char *name, uint name_len, char *strval, int flags, int module_number ELS_DC)
{
zend_register_stringl_constant(name, name_len, strval, strlen(strval), flags, module_number ELS_CC);
}
ZEND_API int zend_get_constant(char *name, uint name_len, zval *result)
{
zend_constant *c;
char *lookup_name = estrndup(name,name_len);
int retval;
ELS_FETCH();
zend_str_tolower(lookup_name, name_len);
if (zend_hash_find(EG(zend_constants), lookup_name, name_len+1, (void **) &c)==SUCCESS) {
if ((c->flags & CONST_CS) && memcmp(c->name, name, name_len)!=0) {
retval=0;
} else {
retval=1;
*result = c->value;
zval_copy_ctor(result);
}
} else {
retval=0;
}
efree(lookup_name);
return retval;
}
ZEND_API int zend_register_constant(zend_constant *c ELS_DC)
{
char *lowercase_name = zend_strndup(c->name, c->name_len);
int ret = SUCCESS;
#if 0
printf("Registering constant for module %d\n",c->module_number);
#endif
zend_str_tolower(lowercase_name, c->name_len);
if (zend_hash_add(EG(zend_constants), lowercase_name, c->name_len, (void *) c, sizeof(zend_constant), NULL)==FAILURE) {
free(c->name);
zval_dtor(&c->value);
zend_error(E_NOTICE,"Constant %s already defined",lowercase_name);
ret = FAILURE;
}
free(lowercase_name);
return ret;
}
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
*/
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