git.m6w6.name Git - m6w6/ext-pq/blob - src/php_pqcancel.c

   1 /*
   2     +--------------------------------------------------------------------+
   3     | PECL :: pq                                                         |
   4     +--------------------------------------------------------------------+
   5     | Redistribution and use in source and binary forms, with or without |
   6     | modification, are permitted provided that the conditions mentioned |
   7     | in the accompanying LICENSE file are met.                          |
   8     +--------------------------------------------------------------------+
   9     | Copyright (c) 2013, Michael Wallner <mike@php.net>                 |
  10     +--------------------------------------------------------------------+
  11 */
  12
  13 #ifdef HAVE_CONFIG_H
  14 #       include "config.h"
  15 #endif
  16
  17 #include <php.h>
  18
  19 #include <libpq-fe.h>
  20
  21 #include "php_pq.h"
  22 #include "php_pq_misc.h"
  23 #include "php_pq_object.h"
  24 #include "php_pqexc.h"
  25 #include "php_pqcancel.h"
  26
  27 zend_class_entry *php_pqcancel_class_entry;
  28 static zend_object_handlers php_pqcancel_object_handlers;
  29 static HashTable php_pqcancel_object_prophandlers;
  30
  31 static void php_pqcancel_object_free(zend_object *o)
  32 {
  33         php_pqcancel_object_t *obj = PHP_PQ_OBJ(NULL, o);
  34 #if DBG_GC
  35         fprintf(stderr, "FREE cancel(#%d) %p (conn(#%d): %p)\n", obj->zv.handle, obj, obj->intern->conn->zv.handle, obj->intern->conn);
  36 #endif
  37         if (obj->intern) {
  38                 PQfreeCancel(obj->intern->cancel);
  39                 php_pq_object_delref(obj->intern->conn);
  40                 efree(obj->intern);
  41                 obj->intern = NULL;
  42         }
  43         zend_object_std_dtor(o);
  44         efree(obj);
  45 }
  46
  47 php_pqcancel_object_t *php_pqcancel_create_object_ex(zend_class_entry *ce, php_pqcancel_t *intern)
  48 {
  49         php_pqcancel_object_t *o;
  50
  51         o = ecalloc(1, sizeof(*o) + zend_object_properties_size(ce));
  52         zend_object_std_init(&o->zo, ce);
  53         object_properties_init(&o->zo, ce);
  54         o->prophandler = &php_pqcancel_object_prophandlers;
  55
  56         if (intern) {
  57                 o->intern = intern;
  58         }
  59
  60         o->zo.handlers = &php_pqcancel_object_handlers;
  61
  62         return o;
  63 }
  64
  65 static zend_object *php_pqcancel_create_object(zend_class_entry *class_type TSRMLS_DC)
  66 {
  67         return &php_pqcancel_create_object_ex(class_type, NULL)->zo;
  68 }
  69
  70 static void php_pqcancel_object_read_connection(zval *object, void *o, zval *return_value)
  71 {
  72         php_pqcancel_object_t *obj = o;
  73
  74         php_pq_object_to_zval(obj->intern->conn, return_value);
  75 }
  76
  77 ZEND_BEGIN_ARG_INFO_EX(ai_pqcancel_construct, 0, 0, 1)
  78         ZEND_ARG_OBJ_INFO(0, connection, pq\\Connection, 0)
  79 ZEND_END_ARG_INFO();
  80 static PHP_METHOD(pqcancel, __construct) {
  81         zend_error_handling zeh;
  82         zval *zconn;
  83         ZEND_RESULT_CODE rv;
  84
  85         zend_replace_error_handling(EH_THROW, exce(EX_INVALID_ARGUMENT), &zeh);
  86         rv = zend_parse_parameters(ZEND_NUM_ARGS(), "O", &zconn, php_pqconn_class_entry);
  87         zend_restore_error_handling(&zeh);
  88
  89         if (SUCCESS == rv) {
  90                 php_pqconn_object_t *conn_obj = PHP_PQ_OBJ(zconn, NULL);
  91
  92                 if (!conn_obj->intern) {
  93                         throw_exce(EX_UNINITIALIZED, "pq\\Connection not initialized");
  94                 } else {
  95                         PGcancel *cancel = PQgetCancel(conn_obj->intern->conn);
  96
  97                         if (!cancel) {
  98                                 throw_exce(EX_RUNTIME, "Failed to acquire cancel (%s)", PHP_PQerrorMessage(conn_obj->intern->conn));
  99                         } else {
 100                                 php_pqcancel_object_t *obj = PHP_PQ_OBJ(getThis(), NULL);
 101
 102                                 obj->intern = ecalloc(1, sizeof(*obj->intern));
 103                                 obj->intern->cancel = cancel;
 104                                 php_pq_object_addref(conn_obj);
 105                                 obj->intern->conn = conn_obj;
 106                         }
 107                 }
 108         }
 109 }
 110
 111 ZEND_BEGIN_ARG_INFO_EX(ai_pqcancel_cancel, 0, 0, 0)
 112 ZEND_END_ARG_INFO();
 113 static PHP_METHOD(pqcancel, cancel) {
 114         zend_error_handling zeh;
 115         ZEND_RESULT_CODE rv;
 116
 117         zend_replace_error_handling(EH_THROW, exce(EX_INVALID_ARGUMENT), &zeh);
 118         rv = zend_parse_parameters_none();
 119         zend_restore_error_handling(&zeh);
 120
 121         if (SUCCESS == rv) {
 122                 php_pqcancel_object_t *obj = PHP_PQ_OBJ(getThis(), NULL);
 123
 124                 if (!obj->intern) {
 125                         throw_exce(EX_UNINITIALIZED, "pq\\Cancel not initialized");
 126                 } else {
 127                         char err[256] = {0};
 128
 129                         if (!PQcancel(obj->intern->cancel, err, sizeof(err))) {
 130                                 throw_exce(EX_RUNTIME, "Failed to request cancellation (%s)", err);
 131                         }
 132                 }
 133         }
 134 }
 135
 136 static zend_function_entry php_pqcancel_methods[] = {
 137         PHP_ME(pqcancel, __construct, ai_pqcancel_construct, ZEND_ACC_PUBLIC|ZEND_ACC_CTOR)
 138         PHP_ME(pqcancel, cancel, ai_pqcancel_cancel, ZEND_ACC_PUBLIC)
 139         {0}
 140 };
 141
 142 PHP_MSHUTDOWN_FUNCTION(pqcancel)
 143 {
 144         zend_hash_destroy(&php_pqcancel_object_prophandlers);
 145         return SUCCESS;
 146 }
 147
 148 PHP_MINIT_FUNCTION(pqcancel)
 149 {
 150         zend_class_entry ce = {0};
 151         php_pq_object_prophandler_t ph = {0};
 152
 153         INIT_NS_CLASS_ENTRY(ce, "pq", "Cancel", php_pqcancel_methods);
 154         php_pqcancel_class_entry = zend_register_internal_class_ex(&ce, NULL);
 155         php_pqcancel_class_entry->create_object = php_pqcancel_create_object;
 156
 157         memcpy(&php_pqcancel_object_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
 158         php_pqcancel_object_handlers.offset = XtOffsetOf(php_pqcancel_object_t, zo);
 159         php_pqcancel_object_handlers.free_obj = php_pqcancel_object_free;
 160         php_pqcancel_object_handlers.read_property = php_pq_object_read_prop;
 161         php_pqcancel_object_handlers.write_property = php_pq_object_write_prop;
 162         php_pqcancel_object_handlers.clone_obj = NULL;
 163         php_pqcancel_object_handlers.get_property_ptr_ptr = NULL;
 164         php_pqcancel_object_handlers.get_gc = NULL;
 165         php_pqcancel_object_handlers.get_properties = php_pq_object_properties;
 166         php_pqcancel_object_handlers.get_debug_info = php_pq_object_debug_info;
 167
 168         zend_hash_init(&php_pqcancel_object_prophandlers, 1, NULL, NULL, 1);
 169
 170         zend_declare_property_null(php_pqcancel_class_entry, ZEND_STRL("connection"), ZEND_ACC_PUBLIC TSRMLS_CC);
 171         ph.read = php_pqcancel_object_read_connection;
 172         zend_hash_str_add_mem(&php_pqcancel_object_prophandlers, ZEND_STRL("connection"), (void *) &ph, sizeof(ph));
 173
 174         return SUCCESS;
 175 }
 176
 177 /*
 178  * Local variables:
 179  * tab-width: 4
 180  * c-basic-offset: 4
 181  * End:
 182  * vim600: noet sw=4 ts=4 fdm=marker
 183  * vim<600: noet sw=4 ts=4
 184  */