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* PHP-7.0: oci8 - Implementation of Oracle TAF Callback
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,162 @@ | ||
| /* | ||
| +----------------------------------------------------------------------+ | ||
| | PHP Version 5 | | ||
| +----------------------------------------------------------------------+ | ||
| | Copyright (c) 1997-2016 The PHP Group | | ||
| +----------------------------------------------------------------------+ | ||
| | 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 | | ||
| | [email protected] so we can mail you a copy immediately. | | ||
| +----------------------------------------------------------------------+ | ||
| | Authors: Stig Sæther Bakken <[email protected]> | | ||
| | Thies C. Arntzen <[email protected]> | | ||
| | | | ||
| | Collection support by Andy Sautins <[email protected]> | | ||
| | Temporary LOB support by David Benson <[email protected]> | | ||
| | ZTS per process OCIPLogon by Harald Radi <[email protected]> | | ||
| | | | ||
| | Redesigned by: Antony Dovgal <[email protected]> | | ||
| | Andi Gutmans <[email protected]> | | ||
| | Wez Furlong <[email protected]> | | ||
| +----------------------------------------------------------------------+ | ||
| */ | ||
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| #ifdef HAVE_CONFIG_H | ||
| #include "config.h" | ||
| #endif | ||
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| #include "php.h" | ||
| #include "ext/standard/info.h" | ||
| #include "php_ini.h" | ||
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| #if HAVE_OCI8 | ||
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| #include "php_oci8.h" | ||
| #include "php_oci8_int.h" | ||
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| /* {{{ callback_fn() | ||
| OCI TAF callback function, calling userspace function */ | ||
| sb4 callback_fn(OCISvcCtx *svchp, OCIEnv *envhp, php_oci_connection *fo_ctx, ub4 fo_type, ub4 fo_event) | ||
| { | ||
| /* Create zval */ | ||
| zval retval, params[3]; | ||
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| /* Default return value */ | ||
| sb4 returnValue = 0; | ||
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| /* Check if userspace callback function was disabled */ | ||
| if (Z_ISUNDEF(fo_ctx->taf_callback) || Z_ISNULL(fo_ctx->taf_callback)) { | ||
| return 0; | ||
| } | ||
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| /* Initialize zval */ | ||
| ZVAL_RES(¶ms[0], fo_ctx->id); | ||
| ZVAL_LONG(¶ms[1], fo_event); | ||
| ZVAL_LONG(¶ms[2], fo_type); | ||
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| /* Call user function (if possible) */ | ||
| if (call_user_function(EG(function_table), NULL, &fo_ctx->taf_callback, &retval, 3, params) == FAILURE) { | ||
| php_error_docref(NULL, E_WARNING, "Unable to call taf callback function, is it defined?"); | ||
| } | ||
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| /* Set return value */ | ||
| if (Z_TYPE(retval) == IS_LONG) { | ||
| returnValue = (sb4) Z_LVAL(retval); | ||
| } | ||
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| /* Setting params[0] to null so ressource isn't destroyed on zval_dtor */ | ||
| ZVAL_NULL(¶ms[0]); | ||
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| /* Cleanup */ | ||
| zval_dtor(&retval); | ||
| zval_dtor(¶ms[0]); | ||
| zval_dtor(¶ms[1]); | ||
| zval_dtor(¶ms[2]); | ||
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| return returnValue; | ||
| } | ||
| /* }}} */ | ||
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| /* {{{ php_oci_disable_taf_callback() | ||
| Disables the userspace callback function for Oracle TAF, | ||
| while keeping the OCI callback alive */ | ||
| int php_oci_disable_taf_callback(php_oci_connection *connection) | ||
| { | ||
| return php_oci_register_taf_callback(connection, NULL); | ||
| } | ||
| /* }}} */ | ||
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| /* {{{ php_oci_register_taf_callback() | ||
| Register a callback function for Oracle TAF */ | ||
| int php_oci_register_taf_callback(php_oci_connection *connection, zval *callback) | ||
| { | ||
| sword errstatus; | ||
| int registered = 0; | ||
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| /* temporary failover callback structure */ | ||
| OCIFocbkStruct failover; | ||
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| if (!callback) { | ||
| /* Disable callback */ | ||
| if (Z_ISUNDEF(connection->taf_callback) || Z_ISNULL(connection->taf_callback)) { | ||
| return 0; // Nothing to disable | ||
| } | ||
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| registered = 1; | ||
| zval_ptr_dtor(&connection->taf_callback); | ||
| ZVAL_NULL(&connection->taf_callback); | ||
| } else { | ||
| if (!Z_ISUNDEF(connection->taf_callback)) { | ||
| registered = 1; | ||
| if (!Z_ISNULL(connection->taf_callback)) { | ||
| zval_ptr_dtor(&connection->taf_callback); | ||
| ZVAL_NULL(&connection->taf_callback); | ||
| } | ||
| } | ||
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| /* Set userspace callback function */ | ||
| ZVAL_COPY(&connection->taf_callback, callback); | ||
| } | ||
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| /* OCI callback function already registered */ | ||
| if (registered) { | ||
| return 0; | ||
| } | ||
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| /* set context */ | ||
| failover.fo_ctx = connection; | ||
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| /* set callback function */ | ||
| failover.callback_function = &callback_fn; | ||
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| /* do the registration */ | ||
| PHP_OCI_CALL_RETURN(errstatus, OCIAttrSet, (connection->server, (ub4) OCI_HTYPE_SERVER, (void *) &failover, (ub4) 0, (ub4) OCI_ATTR_FOCBK, connection->err)); | ||
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| if (errstatus != OCI_SUCCESS) { | ||
| zval_ptr_dtor(&connection->taf_callback); | ||
| ZVAL_UNDEF(&connection->taf_callback); | ||
| connection->errcode = php_oci_error(connection->err, errstatus); | ||
| return 1; | ||
| } | ||
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| /* successful conclusion */ | ||
| return 0; | ||
| } | ||
| /* }}} */ | ||
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| #endif /* HAVE_OCI8 */ | ||
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| /* | ||
| * 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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