prepareAsync++, Statement::execAsync++
[m6w6/ext-pq] / src / php_pq.c
index f1db28f16fbf006074b62aee8bafaeb771fe17c1..80c654728ad5978737afe4f3305c053ddb573c51 100644 (file)
@@ -82,13 +82,36 @@ static zend_object_handlers php_pqconn_object_handlers;
 static zend_object_handlers php_pqres_object_handlers;
 static zend_object_handlers php_pqstm_object_handlers;
 
+typedef struct php_pq_callback {
+       zend_fcall_info fci;
+       zend_fcall_info_cache fcc;
+       void *data;
+} php_pq_callback_t;
+
+typedef struct php_pqbase_object {
+       zend_object zo;
+       void *intern;
+       HashTable *prophandler;
+} php_pqbase_object_t;
+
 typedef struct php_pqconn_object {
        zend_object zo;
        PGconn *conn;
+       HashTable *prophandler;
+
        int (*poller)(PGconn *);
+       HashTable listeners;
+       php_pq_callback_t onevent;
        unsigned async:1;
 } php_pqconn_object_t;
 
+typedef struct php_pqconn_event_data {
+       php_pqconn_object_t *obj;
+#ifdef ZTS
+       void ***ts;
+#endif
+} php_pqconn_event_data_t;
+
 typedef enum php_pqres_fetch {
        PHP_PQRES_FETCH_ARRAY,
        PHP_PQRES_FETCH_ASSOC,
@@ -105,20 +128,30 @@ typedef struct php_pqres_iterator {
 typedef struct php_pqres_object {
        zend_object zo;
        PGresult *res;
+       HashTable *prophandler;
+
        php_pqres_iterator_t *iter;
 } php_pqres_object_t;
 
-typedef struct php_pqstm_intern {
-       char *name;
-       zval *conn;
-} php_pqstm_intern_t;
-
 typedef struct php_pqstm_object {
        zend_object zo;
        char *name;
+       HashTable *prophandler;
+
        zval *conn;
 } php_pqstm_object_t;
 
+static HashTable php_pqconn_object_prophandlers;
+static HashTable php_pqres_object_prophandlers;
+static HashTable php_pqstm_object_prophandlers;
+
+typedef void (*php_pq_object_prophandler_func_t)(zval *object, void *o, zval *return_value TSRMLS_DC);
+
+typedef struct php_pq_object_prophandler {
+       php_pq_object_prophandler_func_t read;
+       php_pq_object_prophandler_func_t write;
+} php_pq_object_prophandler_t;
+
 static zend_object_iterator_funcs php_pqres_iterator_funcs;
 
 static zend_object_iterator *php_pqres_iterator_init(zend_class_entry *ce, zval *object, int by_ref TSRMLS_DC)
@@ -277,6 +310,25 @@ static zend_object_iterator_funcs php_pqres_iterator_funcs = {
        NULL
 };
 
+static void php_pq_callback_dtor(php_pq_callback_t *cb) {
+       if (cb->fci.size > 0) {
+               zend_fcall_info_args_clear(&cb->fci, 1);
+               zval_ptr_dtor(&cb->fci.function_name);
+               if (cb->fci.object_ptr) {
+                       zval_ptr_dtor(&cb->fci.object_ptr);
+               }
+       }
+       cb->fci.size = 0;
+}
+
+static void php_pq_callback_addref(php_pq_callback_t *cb)
+{
+       Z_ADDREF_P(cb->fci.function_name);
+       if (cb->fci.object_ptr) {
+               Z_ADDREF_P(cb->fci.object_ptr);
+       }
+}
+
 static void php_pqconn_object_free(void *o TSRMLS_DC)
 {
        php_pqconn_object_t *obj = o;
@@ -285,17 +337,29 @@ static void php_pqconn_object_free(void *o TSRMLS_DC)
                PQfinish(obj->conn);
                obj->conn = NULL;
        }
+       if (obj->onevent.fci.size > 0) {
+               php_pq_callback_dtor(&obj->onevent);
+       }
+       zend_hash_destroy(&obj->listeners);
        zend_object_std_dtor((zend_object *) o TSRMLS_CC);
        efree(obj);
 }
 
+static int php_pqconn_event(PGEventId id, void *e, void *data);
+
 static void php_pqres_object_free(void *o TSRMLS_DC)
 {
        php_pqres_object_t *obj = o;
 
        if (obj->res) {
-               PQclear(obj->res);
-               obj->res = NULL;
+               zval *res = PQresultInstanceData(obj->res, php_pqconn_event);
+               if (res) {
+                       PQresultSetInstanceData(obj->res, php_pqconn_event, NULL);
+                       zval_ptr_dtor(&res);
+               } else {
+                       PQclear(obj->res);
+                       obj->res = NULL;
+               }
        }
        if (obj->iter) {
                php_pqres_iterator_dtor((zend_object_iterator *) obj->iter TSRMLS_CC);
@@ -329,6 +393,7 @@ static zend_object_value php_pqconn_create_object_ex(zend_class_entry *ce, PGcon
        o = ecalloc(1, sizeof(*o));
        zend_object_std_init((zend_object *) o, ce TSRMLS_CC);
        object_properties_init((zend_object *) o, ce);
+       o->prophandler = &php_pqconn_object_prophandlers;
 
        if (ptr) {
                *ptr = o;
@@ -339,6 +404,8 @@ static zend_object_value php_pqconn_create_object_ex(zend_class_entry *ce, PGcon
                o->async = !PQisnonblocking(o->conn);
        }
 
+       zend_hash_init(&o->listeners, 0, NULL, (dtor_func_t) zend_hash_destroy, 0);
+
        ov.handle = zend_objects_store_put((zend_object *) o, NULL, php_pqconn_object_free, NULL TSRMLS_CC);
        ov.handlers = &php_pqconn_object_handlers;
 
@@ -353,6 +420,7 @@ static zend_object_value php_pqres_create_object_ex(zend_class_entry *ce, PGresu
        o = ecalloc(1, sizeof(*o));
        zend_object_std_init((zend_object *) o, ce TSRMLS_CC);
        object_properties_init((zend_object *) o, ce);
+       o->prophandler = &php_pqres_object_prophandlers;
 
        if (ptr) {
                *ptr = o;
@@ -376,6 +444,7 @@ static zend_object_value php_pqstm_create_object_ex(zend_class_entry *ce, zval *
        o = ecalloc(1, sizeof(*o));
        zend_object_std_init((zend_object *) o, ce TSRMLS_CC);
        object_properties_init((zend_object *) o, ce);
+       o->prophandler = &php_pqstm_object_prophandlers;
 
        if (ptr) {
                *ptr = o;
@@ -411,32 +480,71 @@ static zend_object_value php_pqstm_create_object(zend_class_entry *class_type TS
        return php_pqstm_create_object_ex(class_type, NULL, NULL, NULL TSRMLS_CC);
 }
 
-static HashTable php_pqconn_object_prophandlers;
-static HashTable php_pqres_object_prophandlers;
-static HashTable php_pqstm_object_prophandlers;
+static int apply_ph_to_debug(void *p TSRMLS_DC, int argc, va_list argv, zend_hash_key *key)
+{
+       php_pq_object_prophandler_t *ph = p;
+       HashTable *ht = va_arg(argv, HashTable *);
+       zval **return_value, *object = va_arg(argv, zval *);
+       php_pqbase_object_t *obj = va_arg(argv, php_pqbase_object_t *);
 
-typedef void (*php_pq_object_prophandler_func_t)(void *o, zval *return_value TSRMLS_DC);
+       if (SUCCESS == zend_hash_find(ht, key->arKey, key->nKeyLength, (void *) &return_value)) {
+               if (ph->read) {
+                       MAKE_STD_ZVAL(*return_value);
+                       ZVAL_NULL(*return_value);
 
-typedef struct php_pq_object_prophandler {
-       php_pq_object_prophandler_func_t read;
-       php_pq_object_prophandler_func_t write;
-} php_pq_object_prophandler_t;
+                       ph->read(object, obj, *return_value TSRMLS_CC);
+               } else {
+                       zval member;
+
+                       INIT_PZVAL(&member);
+                       ZVAL_STRINGL(&member, key->arKey, key->nKeyLength-1, 0);
+                       *return_value = zend_get_std_object_handlers()->read_property(object, &member, BP_VAR_R, NULL TSRMLS_CC);
+                       Z_ADDREF_PP(return_value);
+               }
+       }
+
+       return ZEND_HASH_APPLY_KEEP;
+}
+
+static int apply_pi_to_debug(void *p, void *arg TSRMLS_DC)
+{
+       zend_property_info *pi = p;
+       HashTable *ht = arg;
+
+       zend_hash_add_empty_element(ht, pi->name, pi->name_length + 1);
 
-static void php_pqconn_object_read_status(void *o, zval *return_value TSRMLS_DC)
+       return ZEND_HASH_APPLY_KEEP;
+}
+
+static HashTable *php_pq_object_debug_info(zval *object, int *temp TSRMLS_DC)
+{
+       HashTable *ht;
+       php_pqbase_object_t *obj = zend_object_store_get_object(object TSRMLS_CC);
+
+       *temp = 1;
+       ALLOC_HASHTABLE(ht);
+       ZEND_INIT_SYMTABLE(ht);
+
+       zend_hash_apply_with_argument(&obj->zo.ce->properties_info, apply_pi_to_debug, ht TSRMLS_CC);
+       zend_hash_apply_with_arguments(obj->prophandler TSRMLS_CC, apply_ph_to_debug, 3, ht, object, obj);
+
+       return ht;
+}
+static void php_pqconn_object_read_status(zval *object, void *o, zval *return_value TSRMLS_DC)
 {
        php_pqconn_object_t *obj = o;
 
        RETVAL_LONG(PQstatus(obj->conn));
 }
 
-static void php_pqconn_object_read_transaction_status(void *o, zval *return_value TSRMLS_DC)
+static void php_pqconn_object_read_transaction_status(zval *object, void *o, zval *return_value TSRMLS_DC)
 {
        php_pqconn_object_t *obj = o;
 
        RETVAL_LONG(PQtransactionStatus(obj->conn));
 }
 
-static void php_pqconn_object_read_error_message(void *o, zval *return_value TSRMLS_DC)
+static void php_pqconn_object_read_error_message(zval *object, void *o, zval *return_value TSRMLS_DC)
 {
        php_pqconn_object_t *obj = o;
        char *error = PQerrorMessage(obj->conn);
@@ -448,6 +556,52 @@ static void php_pqconn_object_read_error_message(void *o, zval *return_value TSR
        }
 }
 
+static int apply_notify_listener(void *p, void *arg TSRMLS_DC)
+{
+       php_pq_callback_t *listener = p;
+       PGnotify *nfy = arg;
+       zval *zpid, *zchannel, *zmessage;
+
+       MAKE_STD_ZVAL(zpid);
+       ZVAL_LONG(zpid, nfy->be_pid);
+       MAKE_STD_ZVAL(zchannel);
+       ZVAL_STRING(zchannel, nfy->relname, 1);
+       MAKE_STD_ZVAL(zmessage);
+       ZVAL_STRING(zmessage, nfy->extra, 1);
+
+       zend_fcall_info_argn(&listener->fci TSRMLS_CC, 3, &zchannel, &zmessage, &zpid);
+       zend_fcall_info_call(&listener->fci, &listener->fcc, NULL, NULL TSRMLS_CC);
+
+       zval_ptr_dtor(&zchannel);
+       zval_ptr_dtor(&zmessage);
+       zval_ptr_dtor(&zpid);
+
+       return ZEND_HASH_APPLY_KEEP;
+}
+
+static int apply_notify_listeners(void *p, void *arg TSRMLS_DC)
+{
+       HashTable *listeners = p;
+
+       zend_hash_apply_with_argument(listeners, apply_notify_listener, arg TSRMLS_CC);
+
+       return ZEND_HASH_APPLY_KEEP;
+}
+
+static void php_pqconn_notify_listeners(zval *this_ptr, php_pqconn_object_t *obj TSRMLS_DC)
+{
+       PGnotify *nfy;
+
+       if (!obj) {
+               obj = zend_object_store_get_object(getThis() TSRMLS_CC);
+       }
+
+       while ((nfy = PQnotifies(obj->conn))) {
+               zend_hash_apply_with_argument(&obj->listeners, apply_notify_listeners, nfy TSRMLS_CC);
+               PQfreemem(nfy);
+       }
+}
+
 /* FIXME: extend to types->nspname->typname */
 #define PHP_PQ_TYPES_QUERY \
        "select t.oid, t.* " \
@@ -455,11 +609,13 @@ static void php_pqconn_object_read_error_message(void *o, zval *return_value TSR
        "where typisdefined " \
        "and typrelid=0 " \
        "and nspname in ('public', 'pg_catalog')"
-static void php_pqconn_object_read_types(void *o, zval *return_value TSRMLS_DC)
+static void php_pqconn_object_read_types(zval *object, void *o, zval *return_value TSRMLS_DC)
 {
        php_pqconn_object_t *obj = o;
        PGresult *res = PQexec(obj->conn, PHP_PQ_TYPES_QUERY);
 
+       php_pqconn_notify_listeners(object, obj TSRMLS_CC);
+
        /* FIXME: cache that */
        if (res) {
                if (PGRES_TUPLES_OK == PQresultStatus(res)) {
@@ -492,14 +648,21 @@ static void php_pqconn_object_read_types(void *o, zval *return_value TSRMLS_DC)
        }
 }
 
-static void php_pqres_object_read_status(void *o, zval *return_value TSRMLS_DC)
+static void php_pqconn_object_read_busy(zval *object, void *o, zval *return_value TSRMLS_DC)
+{
+       php_pqconn_object_t *obj = o;
+
+       RETVAL_BOOL(PQisBusy(obj->conn));
+}
+
+static void php_pqres_object_read_status(zval *object, void *o, zval *return_value TSRMLS_DC)
 {
        php_pqres_object_t *obj = o;
 
        RETVAL_LONG(PQresultStatus(obj->res));
 }
 
-static void php_pqres_object_read_error_message(void *o, zval *return_value TSRMLS_DC)
+static void php_pqres_object_read_error_message(zval *object, void *o, zval *return_value TSRMLS_DC)
 {
        php_pqres_object_t *obj = o;
        char *error = PQresultErrorMessage(obj->res);
@@ -511,28 +674,28 @@ static void php_pqres_object_read_error_message(void *o, zval *return_value TSRM
        }
 }
 
-static void php_pqres_object_read_num_rows(void *o, zval *return_value TSRMLS_DC)
+static void php_pqres_object_read_num_rows(zval *object, void *o, zval *return_value TSRMLS_DC)
 {
        php_pqres_object_t *obj = o;
 
        RETVAL_LONG(PQntuples(obj->res));
 }
 
-static void php_pqres_object_read_num_cols(void *o, zval *return_value TSRMLS_DC)
+static void php_pqres_object_read_num_cols(zval *object, void *o, zval *return_value TSRMLS_DC)
 {
        php_pqres_object_t *obj = o;
 
        RETVAL_LONG(PQnfields(obj->res));
 }
 
-static void php_pqres_object_read_affected_rows(void *o, zval *return_value TSRMLS_DC)
+static void php_pqres_object_read_affected_rows(zval *object, void *o, zval *return_value TSRMLS_DC)
 {
        php_pqres_object_t *obj = o;
 
        RETVAL_LONG(atoi(PQcmdTuples(obj->res)));
 }
 
-static void php_pqres_object_read_fetch_type(void *o, zval *return_value TSRMLS_DC)
+static void php_pqres_object_read_fetch_type(zval *object, void *o, zval *return_value TSRMLS_DC)
 {
        php_pqres_object_t *obj = o;
 
@@ -543,7 +706,7 @@ static void php_pqres_object_read_fetch_type(void *o, zval *return_value TSRMLS_
        }
 }
 
-static void php_pqres_object_write_fetch_type(void *o, zval *value TSRMLS_DC)
+static void php_pqres_object_write_fetch_type(zval *object, void *o, zval *value TSRMLS_DC)
 {
        php_pqres_object_t *obj = o;
        zval *zfetch_type = value;
@@ -559,14 +722,14 @@ static void php_pqres_object_write_fetch_type(void *o, zval *value TSRMLS_DC)
        }
 }
 
-static void php_pqstm_object_read_name(void *o, zval *return_value TSRMLS_DC)
+static void php_pqstm_object_read_name(zval *object, void *o, zval *return_value TSRMLS_DC)
 {
        php_pqstm_object_t *obj = o;
 
        RETVAL_STRING(obj->name, 1);
 }
 
-static void php_pqstm_object_read_connection(void *o, zval *return_value TSRMLS_DC)
+static void php_pqstm_object_read_connection(zval *object, void *o, zval *return_value TSRMLS_DC)
 {
        php_pqstm_object_t *obj = o;
 
@@ -587,7 +750,7 @@ static zval *php_pqconn_object_read_prop(zval *object, zval *member, int type, c
                        Z_SET_REFCOUNT_P(return_value, 0);
                        Z_UNSET_ISREF_P(return_value);
 
-                       handler->read(obj, return_value TSRMLS_CC);
+                       handler->read(object, obj, return_value TSRMLS_CC);
                } else {
                        zend_error(E_ERROR, "Cannot access pq\\Connection properties by reference or array key/index");
                        return_value = NULL;
@@ -606,7 +769,7 @@ static void php_pqconn_object_write_prop(zval *object, zval *member, zval *value
 
        if (SUCCESS == zend_hash_find(&php_pqconn_object_prophandlers, Z_STRVAL_P(member), Z_STRLEN_P(member)+1, (void *) &handler)) {
                if (handler->write) {
-                       handler->write(obj, value TSRMLS_CC);
+                       handler->write(object, obj, value TSRMLS_CC);
                }
        } else {
                zend_get_std_object_handlers()->write_property(object, member, value, key TSRMLS_CC);
@@ -627,7 +790,7 @@ static zval *php_pqres_object_read_prop(zval *object, zval *member, int type, co
                        Z_SET_REFCOUNT_P(return_value, 0);
                        Z_UNSET_ISREF_P(return_value);
 
-                       handler->read(obj, return_value TSRMLS_CC);
+                       handler->read(object, obj, return_value TSRMLS_CC);
                } else {
                        zend_error(E_ERROR, "Cannot access pq\\Result properties by reference or array key/index");
                        return_value = NULL;
@@ -653,7 +816,7 @@ static void php_pqres_object_write_prop(zval *object, zval *member, zval *value,
                                obj->iter = (php_pqres_iterator_t *) php_pqres_iterator_init(Z_OBJCE_P(object), object, 0 TSRMLS_CC);
                                obj->iter->zi.funcs->rewind((zend_object_iterator *) obj->iter TSRMLS_CC);
                        }
-                       handler->write(obj, value TSRMLS_CC);
+                       handler->write(object, obj, value TSRMLS_CC);
                }
        } else {
                zend_get_std_object_handlers()->write_property(object, member, value, key TSRMLS_CC);
@@ -674,7 +837,7 @@ static zval *php_pqstm_object_read_prop(zval *object, zval *member, int type, co
                        Z_SET_REFCOUNT_P(return_value, 0);
                        Z_UNSET_ISREF_P(return_value);
 
-                       handler->read(obj, return_value TSRMLS_CC);
+                       handler->read(object, obj, return_value TSRMLS_CC);
                } else {
                        zend_error(E_ERROR, "Cannot access pq\\Statement properties by reference or array key/index");
                        return_value = NULL;
@@ -695,7 +858,7 @@ static void php_pqstm_object_write_prop(zval *object, zval *member, zval *value,
                zend_error(E_WARNING, "Result not initialized");
        } else if (SUCCESS == zend_hash_find(&php_pqstm_object_prophandlers, Z_STRVAL_P(member), Z_STRLEN_P(member)+1, (void *) &handler)) {
                if (handler->write) {
-                       handler->write(obj, value TSRMLS_CC);
+                       handler->write(object, obj, value TSRMLS_CC);
                }
        } else {
                zend_get_std_object_handlers()->write_property(object, member, value, key TSRMLS_CC);
@@ -732,6 +895,72 @@ static STATUS php_pqconn_update_socket(zval *this_ptr, php_pqconn_object_t *obj
        return retval;
 }
 
+#ifdef ZTS
+#      define TSRMLS_DF(d) TSRMLS_D = (d)->ts
+#      define TSRMLS_CF(d) (d)->ts = TSRMLS_C
+#else
+#      define TSRMLS_DF(d)
+#      define TSRMLS_CF(d)
+#endif
+
+static void php_pqconn_event_register(PGEventRegister *event, php_pqconn_event_data_t *data)
+{
+       PQsetInstanceData(event->conn, php_pqconn_event, data);
+}
+static void php_pqconn_event_conndestroy(PGEventConnDestroy *event, php_pqconn_event_data_t *data)
+{
+       PQsetInstanceData(event->conn, php_pqconn_event, NULL);
+       efree(data);
+}
+static void php_pqconn_event_resultcreate(PGEventResultCreate *event, php_pqconn_event_data_t *data)
+{
+       TSRMLS_DF(data);
+
+       if (data->obj->onevent.fci.size > 0) {
+               zval *res;
+
+               MAKE_STD_ZVAL(res);
+               res->type = IS_OBJECT;
+               res->value.obj = php_pqres_create_object_ex(php_pqres_class_entry, event->result, NULL TSRMLS_CC);
+
+               Z_ADDREF_P(res);
+               PQresultSetInstanceData(event->result, php_pqconn_event, res);
+
+               zend_fcall_info_argn(&data->obj->onevent.fci TSRMLS_CC, 1, &res);
+               zend_fcall_info_call(&data->obj->onevent.fci, &data->obj->onevent.fcc, NULL, NULL TSRMLS_CC);
+               zval_ptr_dtor(&res);
+       }
+}
+
+static int php_pqconn_event(PGEventId id, void *e, void *data)
+{
+       switch (id) {
+       case PGEVT_REGISTER:
+               php_pqconn_event_register(e, data);
+               break;
+       case PGEVT_CONNDESTROY:
+               php_pqconn_event_conndestroy(e, data);
+               break;
+       case PGEVT_RESULTCREATE:
+               php_pqconn_event_resultcreate(e, data);
+               break;
+       default:
+               break;
+       }
+
+       return 1;
+}
+
+static php_pqconn_event_data_t *php_pqconn_event_data_init(php_pqconn_object_t *obj TSRMLS_DC)
+{
+       php_pqconn_event_data_t *data = emalloc(sizeof(*data));
+
+       data->obj = obj;
+       TSRMLS_CF(data);
+
+       return data;
+}
+
 ZEND_BEGIN_ARG_INFO_EX(ai_pqconn_construct, 0, 0, 1)
        ZEND_ARG_INFO(0, dsn)
        ZEND_ARG_INFO(0, async)
@@ -745,6 +974,7 @@ static PHP_METHOD(pqconn, __construct) {
        zend_replace_error_handling(EH_THROW, NULL, &zeh TSRMLS_CC);
        if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|b", &dsn_str, &dsn_len, &async)) {
                php_pqconn_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);
+               php_pqconn_event_data_t *data =  php_pqconn_event_data_init(obj TSRMLS_CC);
 
                if (obj->conn) {
                        PQfinish(obj->conn);
@@ -756,6 +986,7 @@ static PHP_METHOD(pqconn, __construct) {
                        obj->conn = PQconnectdb(dsn_str);
                }
                
+               PQregisterEventProc(obj->conn, php_pqconn_event, "ext-pq", data);
                if (SUCCESS != php_pqconn_update_socket(getThis(), obj TSRMLS_CC)) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection failed: %s", PQerrorMessage(obj->conn));
                }
@@ -791,6 +1022,115 @@ static PHP_METHOD(pqconn, reset) {
        }
 }
 
+static void php_pqconn_add_listener(php_pqconn_object_t *obj, const char *channel_str, size_t channel_len, php_pq_callback_t *listener TSRMLS_DC)
+{
+       HashTable ht, *existing_listeners;
+
+       php_pq_callback_addref(listener);
+
+       if (SUCCESS == zend_hash_find(&obj->listeners, channel_str, channel_len + 1, (void *) &existing_listeners)) {
+               zend_hash_next_index_insert(existing_listeners, (void *) listener, sizeof(*listener), NULL);
+       } else {
+               zend_hash_init(&ht, 1, NULL, (dtor_func_t) php_pq_callback_dtor, 0);
+               zend_hash_next_index_insert(&ht, (void *) listener, sizeof(*listener), NULL);
+               zend_hash_add(&obj->listeners, channel_str, channel_len + 1, (void *) &ht, sizeof(HashTable), NULL);
+       }
+}
+
+static STATUS php_pqres_success(PGresult *res TSRMLS_DC)
+{
+       switch (PQresultStatus(res)) {
+       case PGRES_BAD_RESPONSE:
+       case PGRES_NONFATAL_ERROR:
+       case PGRES_FATAL_ERROR:
+               php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", PQresultErrorMessage(res));
+               return FAILURE;
+       default:
+               return SUCCESS;
+       }
+}
+
+ZEND_BEGIN_ARG_INFO_EX(ai_pqconn_listen, 0, 0, 0)
+       ZEND_ARG_INFO(0, channel)
+       ZEND_ARG_INFO(0, callable)
+ZEND_END_ARG_INFO();
+static PHP_METHOD(pqconn, listen) {
+       char *channel_str = NULL;
+       int channel_len = 0;
+       php_pq_callback_t listener;
+
+       if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sf", &channel_str, &channel_len, &listener.fci, &listener.fcc)) {
+               php_pqconn_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);
+
+               obj->poller = PQconsumeInput;
+
+               if (obj->conn) {
+                       PGresult *res;
+                       char cmd[1024];
+
+                       slprintf(cmd, sizeof(cmd), "LISTEN %s", channel_str);
+                       res = PQexec(obj->conn, cmd);
+
+                       if (res) {
+                               if (SUCCESS == php_pqres_success(res TSRMLS_CC)) {
+                                       php_pqconn_add_listener(obj, channel_str, channel_len, &listener TSRMLS_CC);
+                                       RETVAL_TRUE;
+                               } else {
+                                       RETVAL_FALSE;
+                               }
+                               PQclear(res);
+                       } else {
+                               php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not install listener: %s", PQerrorMessage(obj->conn));
+                               RETVAL_FALSE;
+                       }
+
+                       php_pqconn_notify_listeners(getThis(), obj TSRMLS_CC);
+
+               } else {
+                       php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
+                       RETVAL_FALSE;
+               }
+       }
+}
+
+ZEND_BEGIN_ARG_INFO_EX(ai_pqconn_notify, 0, 0, 2)
+       ZEND_ARG_INFO(0, channel)
+       ZEND_ARG_INFO(0, message)
+ZEND_END_ARG_INFO();
+static PHP_METHOD(pqconn, notify) {
+       char *channel_str, *message_str;
+       int channel_len, message_len;
+
+       if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss", &channel_str, &channel_len, &message_str, &message_len)) {
+               php_pqconn_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);
+
+               if (obj->conn) {
+                       PGresult *res;
+                       char *params[2] = {channel_str, message_str};
+
+                       res = PQexecParams(obj->conn, "select pg_notify($1, $2)", 2, NULL, (const char *const*) params, NULL, NULL, 0);
+
+                       if (res) {
+                               if (SUCCESS == php_pqres_success(res TSRMLS_CC)) {
+                                       RETVAL_TRUE;
+                               } else {
+                                       RETVAL_FALSE;
+                               }
+                               PQclear(res);
+                       } else {
+                               php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not notify listeners: %s", PQerrorMessage(obj->conn));
+                               RETVAL_FALSE;
+                       }
+
+                       php_pqconn_notify_listeners(getThis(), obj TSRMLS_CC);
+
+               } else {
+                       php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
+                       RETVAL_FALSE;
+               }
+       }
+}
+
 ZEND_BEGIN_ARG_INFO_EX(ai_pqconn_poll, 0, 0, 0)
 ZEND_END_ARG_INFO();
 static PHP_METHOD(pqconn, poll) {
@@ -800,7 +1140,9 @@ static PHP_METHOD(pqconn, poll) {
                if (obj->conn) {
                        if (obj->poller) {
                                if (obj->poller == PQconsumeInput) {
-                                       RETURN_LONG(obj->poller(obj->conn) * PGRES_POLLING_OK);
+                                       RETVAL_LONG(obj->poller(obj->conn) * PGRES_POLLING_OK);
+                                       php_pqconn_notify_listeners(getThis(), obj TSRMLS_CC);
+                                       return;
                                } else {
                                        RETURN_LONG(obj->poller(obj->conn));
                                }
@@ -814,19 +1156,6 @@ static PHP_METHOD(pqconn, poll) {
        }
 }
 
-static STATUS php_pqres_success(PGresult *res TSRMLS_DC)
-{
-       switch (PQresultStatus(res)) {
-       case PGRES_BAD_RESPONSE:
-       case PGRES_NONFATAL_ERROR:
-       case PGRES_FATAL_ERROR:
-               php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", PQresultErrorMessage(res));
-               return FAILURE;
-       default:
-               return SUCCESS;
-       }
-}
-
 ZEND_BEGIN_ARG_INFO_EX(ai_pqconn_exec, 0, 0, 1)
        ZEND_ARG_INFO(0, query)
 ZEND_END_ARG_INFO();
@@ -842,6 +1171,8 @@ static PHP_METHOD(pqconn, exec) {
                if (obj->conn) {
                        PGresult *res = PQexec(obj->conn, query_str);
 
+                       php_pqconn_notify_listeners(getThis(), obj TSRMLS_CC);
+
                        if (res) {
                                if (SUCCESS == php_pqres_success(res TSRMLS_CC)) {
                                        return_value->type = IS_OBJECT;
@@ -857,6 +1188,65 @@ static PHP_METHOD(pqconn, exec) {
        zend_restore_error_handling(&zeh TSRMLS_CC);
 }
 
+ZEND_BEGIN_ARG_INFO_EX(ai_pqconn_get_result, 0, 0, 0)
+ZEND_END_ARG_INFO();
+static PHP_METHOD(pqconn, getResult) {
+       if (SUCCESS == zend_parse_parameters_none()) {
+               php_pqconn_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);
+
+               if (obj->conn) {
+                       PGresult *res = PQgetResult(obj->conn);
+
+                       if (res) {
+                               return_value->type = IS_OBJECT;
+                               return_value->value.obj = php_pqres_create_object_ex(php_pqres_class_entry, res, NULL TSRMLS_CC);
+                       } else {
+                               RETVAL_NULL();
+                       }
+               } else {
+                       php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
+                       RETVAL_FALSE;
+               }
+       }
+}
+
+ZEND_BEGIN_ARG_INFO_EX(ai_pqconn_exec_async, 0, 0, 1)
+       ZEND_ARG_INFO(0, query)
+       ZEND_ARG_INFO(0, callable)
+ZEND_END_ARG_INFO();
+static PHP_METHOD(pqconn, execAsync) {
+       zend_error_handling zeh;
+       php_pq_callback_t resolver;
+       char *query_str;
+       int query_len;
+
+       zend_replace_error_handling(EH_THROW, NULL, &zeh TSRMLS_CC);
+       if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|f", &query_str, &query_len, &resolver.fci, &resolver.fcc)) {
+               php_pqconn_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);
+
+               if (obj->conn) {
+                       php_pq_callback_dtor(&obj->onevent);
+                       if (resolver.fci.size > 0) {
+                               obj->onevent = resolver;
+                               php_pq_callback_addref(&obj->onevent);
+                       }
+
+                       obj->poller = PQconsumeInput;
+
+                       if (PQsendQuery(obj->conn, query_str)) {
+                               RETVAL_TRUE;
+                       } else {
+                               php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not execute query: %s", PQerrorMessage(obj->conn));
+                               RETVAL_FALSE;
+                       }
+               } else {
+                       php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
+                       RETVAL_FALSE;
+               }
+       }
+       zend_restore_error_handling(&zeh TSRMLS_CC);
+}
+
 static int apply_to_oid(void *p, void *arg TSRMLS_DC)
 {
        Oid **types = arg;
@@ -902,6 +1292,39 @@ static int apply_to_param(void *p TSRMLS_DC, int argc, va_list argv, zend_hash_k
        return ZEND_HASH_APPLY_KEEP;
 }
 
+static int php_pq_types_to_array(HashTable *ht, Oid **types TSRMLS_DC)
+{
+       int count = zend_hash_num_elements(ht);
+       
+       *types = NULL;
+
+       if (count) {
+               Oid *tmp;
+
+               /* +1 for when less types than params are specified */
+               *types = tmp = ecalloc(count + 1, sizeof(Oid));
+               zend_hash_apply_with_argument(ht, apply_to_oid, &tmp TSRMLS_CC);
+       }
+       
+       return count;
+}
+
+static int php_pq_params_to_array(HashTable *ht, char ***params, HashTable *zdtor TSRMLS_DC)
+{
+       int count = zend_hash_num_elements(ht);
+       
+       *params = NULL;
+
+       if (count) {
+               char **tmp;
+
+               *params = tmp = ecalloc(count, sizeof(char *));
+               zend_hash_apply_with_arguments(ht TSRMLS_CC, apply_to_param, 2, &tmp, zdtor);
+       }
+       
+       return count;
+}
+
 ZEND_BEGIN_ARG_INFO_EX(ai_pqconn_exec_params, 0, 0, 2)
        ZEND_ARG_INFO(0, query)
        ZEND_ARG_ARRAY_INFO(0, params, 0)
@@ -920,24 +1343,16 @@ static PHP_METHOD(pqconn, execParams) {
 
                if (obj->conn) {
                        PGresult *res;
-                       int count = 0;
+                       int count;
                        Oid *types = NULL;
                        char **params = NULL;
                        HashTable zdtor;
 
                        ZEND_INIT_SYMTABLE(&zdtor);
+                       count = php_pq_params_to_array(Z_ARRVAL_P(zparams), &params, &zdtor TSRMLS_CC);
 
-                       if (ztypes && zend_hash_num_elements(Z_ARRVAL_P(ztypes))) {
-                               Oid *tmp;
-
-                               tmp = types = ecalloc(zend_hash_num_elements(Z_ARRVAL_P(ztypes)), sizeof(Oid));
-                               zend_hash_apply_with_argument(Z_ARRVAL_P(ztypes), apply_to_oid, &tmp TSRMLS_CC);
-                       }
-                       if ((count = zend_hash_num_elements(Z_ARRVAL_P(zparams)))) {
-                               char **tmp;
-
-                               tmp = params = ecalloc(zend_hash_num_elements(Z_ARRVAL_P(zparams)), sizeof(char *));
-                               zend_hash_apply_with_arguments(Z_ARRVAL_P(zparams) TSRMLS_CC, apply_to_param, 2, &tmp, &zdtor);
+                       if (ztypes) {
+                               php_pq_types_to_array(Z_ARRVAL_P(ztypes), &types TSRMLS_CC);
                        }
 
                        res = PQexecParams(obj->conn, query_str, count, types, (const char *const*) params, NULL, NULL, 0);
@@ -950,6 +1365,8 @@ static PHP_METHOD(pqconn, execParams) {
                                efree(params);
                        }
 
+                       php_pqconn_notify_listeners(getThis(), obj TSRMLS_CC);
+
                        if (res) {
                                if (SUCCESS == php_pqres_success(res TSRMLS_CC)) {
                                        return_value->type = IS_OBJECT;
@@ -957,9 +1374,75 @@ static PHP_METHOD(pqconn, execParams) {
                                }
                        } else {
                                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not execute query: %s", PQerrorMessage(obj->conn));
+                               RETVAL_FALSE;
+                       }
+               } else {
+                       php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
+                       RETVAL_FALSE;
+               }
+       }
+       zend_restore_error_handling(&zeh TSRMLS_CC);
+}
+
+ZEND_BEGIN_ARG_INFO_EX(ai_pqconn_exec_params_async, 0, 0, 2)
+       ZEND_ARG_INFO(0, query)
+       ZEND_ARG_ARRAY_INFO(0, params, 0)
+       ZEND_ARG_ARRAY_INFO(0, types, 1)
+       ZEND_ARG_INFO(0, callable)
+ZEND_END_ARG_INFO();
+static PHP_METHOD(pqconn, execParamsAsync) {
+       zend_error_handling zeh;
+       php_pq_callback_t resolver;
+       char *query_str;
+       int query_len;
+       zval *zparams;
+       zval *ztypes = NULL;
+
+       zend_replace_error_handling(EH_THROW, NULL, &zeh TSRMLS_CC);
+       if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sa/|a/!f", &query_str, &query_len, &zparams, &ztypes, &resolver.fci, &resolver.fcc)) {
+               php_pqconn_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);
+
+               if (obj->conn) {
+                       int count;
+                       Oid *types = NULL;
+                       char **params = NULL;
+                       HashTable zdtor;
+
+                       ZEND_INIT_SYMTABLE(&zdtor);
+                       count = php_pq_params_to_array(Z_ARRVAL_P(zparams), &params, &zdtor TSRMLS_CC);
+
+                       if (ztypes) {
+                               php_pq_types_to_array(Z_ARRVAL_P(ztypes), &types TSRMLS_CC);
+                       }
+
+                       php_pq_callback_dtor(&obj->onevent);
+                       if (resolver.fci.size > 0) {
+                               obj->onevent = resolver;
+                               php_pq_callback_addref(&obj->onevent);
+                       }
+
+                       obj->poller = PQconsumeInput;
+
+                       if (PQsendQueryParams(obj->conn, query_str, count, types, (const char *const*) params, NULL, NULL, 0)) {
+                               RETVAL_TRUE;
+                       } else {
+                               php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not execute query: %s", PQerrorMessage(obj->conn));
+                               RETVAL_FALSE;
+                       }
+
+                       zend_hash_destroy(&zdtor);
+                       if (types) {
+                               efree(types);
                        }
+                       if (params) {
+                               efree(params);
+                       }
+
+                       php_pqconn_notify_listeners(getThis(), obj TSRMLS_CC);
+
                } else {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
+                       RETVAL_FALSE;
                }
        }
        zend_restore_error_handling(&zeh TSRMLS_CC);
@@ -970,14 +1453,13 @@ static STATUS php_pqconn_prepare(PGconn *conn, const char *name, const char *que
        Oid *types = NULL;
        int count = 0;
        PGresult *res;
+       STATUS rv;
 
-       if (typest && (count = zend_hash_num_elements(typest))) {
-               Oid *tmp;
-
-               tmp = types = ecalloc(count, sizeof(Oid));
-               zend_hash_apply_with_argument(typest, apply_to_oid, &tmp TSRMLS_CC);
+       if (typest) {
+               count = zend_hash_num_elements(typest);
+               php_pq_types_to_array(typest, &types TSRMLS_CC);
        }
-
+       
        res = PQprepare(conn, name, query, count, types);
 
        if (types) {
@@ -985,22 +1467,20 @@ static STATUS php_pqconn_prepare(PGconn *conn, const char *name, const char *que
        }
 
        if (res) {
-               if (PGRES_COMMAND_OK == PQresultStatus(res)) {
-                       return SUCCESS;
-               } else {
-                       php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not prepare statement: %s", PQresultErrorMessage(res));
-               }
+               rv = php_pqres_success(res TSRMLS_CC);
                PQclear(res);
        } else {
+               rv = FAILURE;
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not prepare statement: %s", PQerrorMessage(conn));
        }
-       return FAILURE;
+       
+       return rv;
 }
 
 ZEND_BEGIN_ARG_INFO_EX(ai_pqconn_prepare, 0, 0, 2)
-       ZEND_ARG_INFO(0, "name")
-       ZEND_ARG_INFO(0, "query")
-       ZEND_ARG_ARRAY_INFO(0, "types", 1)
+       ZEND_ARG_INFO(0, name)
+       ZEND_ARG_INFO(0, query)
+       ZEND_ARG_ARRAY_INFO(0, types, 1)
 ZEND_END_ARG_INFO();
 static PHP_METHOD(pqconn, prepare) {
        zend_error_handling zeh;
@@ -1017,10 +1497,65 @@ static PHP_METHOD(pqconn, prepare) {
                                return_value->type = IS_OBJECT;
                                return_value->value.obj = php_pqstm_create_object_ex(php_pqstm_class_entry, getThis(), name_str, NULL TSRMLS_CC);
                        }
+                       php_pqconn_notify_listeners(getThis(), obj TSRMLS_CC);
+               } else {
+                       php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
+               }
+       }
+       zend_restore_error_handling(&zeh TSRMLS_CC);
+}
+
+static STATUS php_pqconn_prepare_async(PGconn *conn, const char *name, const char *query, HashTable *typest TSRMLS_DC)
+{
+       STATUS rv;
+       int count;
+       Oid *types = NULL;
+       
+       if (typest) {
+               count = php_pq_types_to_array(typest, &types TSRMLS_CC);
+       }
+       
+       if (PQsendPrepare(conn, name, query, count, types)) {
+               rv = SUCCESS;
+       } else {
+               php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not prepare statement: %s", PQerrorMessage(conn));
+               rv = FAILURE;
+       }
+       
+       if (types) {
+               efree(types);
+       }
+       
+       return rv;
+}
+
+ZEND_BEGIN_ARG_INFO_EX(ai_pqconn_prepare_async, 0, 0, 2)
+ZEND_ARG_INFO(0, name)
+       ZEND_ARG_INFO(0, query)
+       ZEND_ARG_ARRAY_INFO(0, types, 1)
+ZEND_END_ARG_INFO();
+static PHP_METHOD(pqconn, prepareAsync) {
+       zend_error_handling zeh;
+       zval *ztypes = NULL;
+       char *name_str, *query_str;
+       int name_len, *query_len;
+
+       zend_replace_error_handling(EH_THROW, NULL, &zeh TSRMLS_CC);
+       if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|a/!", &name_str, &name_len, &query_str, &query_len, &ztypes)) {
+               php_pqconn_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);
+
+               if (obj->conn) {
+                       obj->poller = PQconsumeInput;
+                       if (SUCCESS == php_pqconn_prepare_async(obj->conn, name_str, query_str, ztypes ? Z_ARRVAL_P(ztypes) : NULL TSRMLS_CC)) {
+                               return_value->type = IS_OBJECT;
+                               return_value->value.obj = php_pqstm_create_object_ex(php_pqstm_class_entry, getThis(), name_str, NULL TSRMLS_CC);
+                       }
+                       php_pqconn_notify_listeners(getThis(), obj TSRMLS_CC);
                } else {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
                }
        }
+       zend_restore_error_handling(&zeh TSRMLS_CC);
 }
 
 static zend_function_entry php_pqconn_methods[] = {
@@ -1030,6 +1565,12 @@ static zend_function_entry php_pqconn_methods[] = {
        PHP_ME(pqconn, exec, ai_pqconn_exec, ZEND_ACC_PUBLIC)
        PHP_ME(pqconn, execParams, ai_pqconn_exec_params, ZEND_ACC_PUBLIC)
        PHP_ME(pqconn, prepare, ai_pqconn_prepare, ZEND_ACC_PUBLIC)
+       PHP_ME(pqconn, listen, ai_pqconn_listen, ZEND_ACC_PUBLIC)
+       PHP_ME(pqconn, notify, ai_pqconn_notify, ZEND_ACC_PUBLIC)
+       PHP_ME(pqconn, getResult, ai_pqconn_get_result, ZEND_ACC_PUBLIC)
+       PHP_ME(pqconn, execAsync, ai_pqconn_exec_async, ZEND_ACC_PUBLIC)
+       PHP_ME(pqconn, execParamsAsync, ai_pqconn_exec_params_async, ZEND_ACC_PUBLIC)
+       PHP_ME(pqconn, prepareAsync, ai_pqconn_prepare_async, ZEND_ACC_PUBLIC)
        {0}
 };
 
@@ -1131,36 +1672,49 @@ static zend_function_entry php_pqres_methods[] = {
 };
 
 ZEND_BEGIN_ARG_INFO_EX(ai_pqstm_construct, 0, 0, 3)
-       ZEND_ARG_OBJ_INFO(0, "Connection", "pq\\Connection", 0)
-       ZEND_ARG_INFO(0, "name")
-       ZEND_ARG_INFO(0, "query")
-       ZEND_ARG_ARRAY_INFO(0, "types", 1)
+       ZEND_ARG_OBJ_INFO(0, Connection, pq\\Connection, 0)
+       ZEND_ARG_INFO(0, name)
+       ZEND_ARG_INFO(0, query)
+       ZEND_ARG_ARRAY_INFO(0, types, 1)
+       ZEND_ARG_INFO(0, async)
 ZEND_END_ARG_INFO();
 static PHP_METHOD(pqstm, __construct) {
        zend_error_handling zeh;
        zval *zconn, *ztypes = NULL;
        char *name_str, *query_str;
        int name_len, *query_len;
+       zend_bool async = 0;
 
        zend_replace_error_handling(EH_THROW, NULL, &zeh TSRMLS_CC);
-       if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Oss|a/!", &zconn, php_pqconn_class_entry, &name_str, &name_len, &query_str, &query_len, &ztypes)) {
+       if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Oss|a/!b", &zconn, php_pqconn_class_entry, &name_str, &name_len, &query_str, &query_len, &ztypes, &async)) {
                php_pqstm_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);
-               php_pqconn_object_t *conn_obj = zend_object_store_get_object(getThis() TSRMLS_CC);
+               php_pqconn_object_t *conn_obj = zend_object_store_get_object(zconn TSRMLS_CC);
 
                if (conn_obj->conn) {
-                       if (SUCCESS == php_pqconn_prepare(conn_obj->conn, name_str, query_str, ztypes ? Z_ARRVAL_P(ztypes) : NULL TSRMLS_CC)) {
-                               Z_ADDREF_P(zconn);
-                               obj->conn = zconn;
-                               obj->name = estrdup(name_str);
+                       if (async) {
+                               conn_obj->poller = PQconsumeInput;
+                               if (SUCCESS == php_pqconn_prepare_async(conn_obj->conn, name_str, query_str, ztypes ? Z_ARRVAL_P(ztypes) : NULL TSRMLS_CC)) {
+                                       Z_ADDREF_P(zconn);
+                                       obj->conn = zconn;
+                                       obj->name = estrdup(name_str);
+                               }
+                       } else {
+                               if (SUCCESS == php_pqconn_prepare(conn_obj->conn, name_str, query_str, ztypes ? Z_ARRVAL_P(ztypes) : NULL TSRMLS_CC)) {
+                                       Z_ADDREF_P(zconn);
+                                       obj->conn = zconn;
+                                       obj->name = estrdup(name_str);
+                               }
+                               php_pqconn_notify_listeners(obj->conn, conn_obj TSRMLS_CC);
                        }
                } else {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
                }
        }
+       zend_restore_error_handling(&zeh TSRMLS_CC);
 }
 
 ZEND_BEGIN_ARG_INFO_EX(ai_pqstm_exec, 0, 0, 0)
-       ZEND_ARG_ARRAY_INFO(0, "params", 1)
+       ZEND_ARG_ARRAY_INFO(0, params, 1)
 ZEND_END_ARG_INFO();
 static PHP_METHOD(pqstm, exec) {
        zend_error_handling zeh;
@@ -1179,13 +1733,9 @@ static PHP_METHOD(pqstm, exec) {
                                HashTable zdtor;
                                PGresult *res;
 
-                               ZEND_INIT_SYMTABLE(&zdtor);
-
-                               if (zparams && (count = zend_hash_num_elements(Z_ARRVAL_P(zparams)))) {
-                                       char **tmp;
-
-                                       tmp = params = ecalloc(count, sizeof(char *));
-                                       zend_hash_apply_with_arguments(Z_ARRVAL_P(zparams) TSRMLS_CC, apply_to_param, 2, &tmp, &zdtor);
+                               if (zparams) {
+                                       ZEND_INIT_SYMTABLE(&zdtor);
+                                       count = php_pq_params_to_array(Z_ARRVAL_P(zparams), &params, &zdtor TSRMLS_CC);
                                }
 
                                res = PQexecPrepared(conn_obj->conn, obj->name, count, (const char *const*) params, NULL, NULL, 0);
@@ -1193,7 +1743,11 @@ static PHP_METHOD(pqstm, exec) {
                                if (params) {
                                        efree(params);
                                }
-                               zend_hash_destroy(&zdtor);
+                               if (zparams) {
+                                       zend_hash_destroy(&zdtor);
+                               }
+
+                               php_pqconn_notify_listeners(obj->conn, conn_obj TSRMLS_CC);
 
                                if (res) {
                                        if (SUCCESS == php_pqres_success(res TSRMLS_CC)) {
@@ -1213,6 +1767,68 @@ static PHP_METHOD(pqstm, exec) {
        zend_restore_error_handling(&zeh TSRMLS_CC);
 }
 
+ZEND_BEGIN_ARG_INFO_EX(ai_pqstm_exec_async, 0, 0, 0)
+       ZEND_ARG_ARRAY_INFO(0, params, 1)
+       ZEND_ARG_INFO(0, callable)
+ZEND_END_ARG_INFO();
+static PHP_METHOD(pqstm, execAsync) {
+       zend_error_handling zeh;
+       zval *zparams = NULL;
+       php_pq_callback_t resolver;
+
+       zend_replace_error_handling(EH_THROW, NULL, &zeh TSRMLS_CC);
+       if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|a/!f", &zparams, &resolver.fci, &resolver.fcc)) {
+               php_pqstm_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);
+
+               if (obj->conn && obj->name) {
+                       php_pqconn_object_t *conn_obj = zend_object_store_get_object(obj->conn TSRMLS_CC);
+
+                       if (conn_obj->conn) {
+                               int count;
+                               char **params = NULL;
+                               HashTable zdtor;
+
+                               if (zparams) {
+                                       ZEND_INIT_SYMTABLE(&zdtor);
+                                       count = php_pq_params_to_array(Z_ARRVAL_P(zparams), &params, &zdtor TSRMLS_CC);
+                               }
+
+                               php_pq_callback_dtor(&conn_obj->onevent);
+                               if (resolver.fci.size > 0) {
+                                       conn_obj->onevent = resolver;
+                                       php_pq_callback_addref(&conn_obj->onevent);
+                               }
+
+                               conn_obj->poller = PQconsumeInput;
+
+                               if (PQsendQueryPrepared(conn_obj->conn, obj->name, count, (const char *const*) params, NULL, NULL, 0)) {
+                                       RETVAL_TRUE;
+                               } else {
+                                       php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not execute statement: %s", PQerrorMessage(conn_obj->conn));
+                                       RETVAL_FALSE;
+                               }
+
+                               if (params) {
+                                       efree(params);
+                               }
+                               if (zparams) {
+                                       zend_hash_destroy(&zdtor);
+                               }
+
+                               php_pqconn_notify_listeners(obj->conn, conn_obj TSRMLS_CC);
+
+                       } else {
+                               php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
+                               RETVAL_FALSE;
+                       }
+               } else {
+                       php_error_docref(NULL TSRMLS_CC, E_WARNING, "Statement not initialized");
+                       RETVAL_FALSE;
+               }
+       }
+       zend_restore_error_handling(&zeh TSRMLS_CC);
+}
+
 ZEND_BEGIN_ARG_INFO_EX(ai_pqstm_desc, 0, 0, 0)
 ZEND_END_ARG_INFO();
 static PHP_METHOD(pqstm, desc) {
@@ -1228,6 +1844,8 @@ static PHP_METHOD(pqstm, desc) {
                        if (conn_obj->conn) {
                                PGresult *res = PQdescribePrepared(conn_obj->conn, obj->name);
 
+                               php_pqconn_notify_listeners(obj->conn, conn_obj TSRMLS_CC);
+
                                if (res) {
                                        if (SUCCESS == php_pqres_success(res TSRMLS_CC)) {
                                                int p, params;
@@ -1254,6 +1872,7 @@ static zend_function_entry php_pqstm_methods[] = {
        PHP_ME(pqstm, __construct, ai_pqstm_construct, ZEND_ACC_PUBLIC|ZEND_ACC_CTOR)
        PHP_ME(pqstm, exec, ai_pqstm_exec, ZEND_ACC_PUBLIC)
        PHP_ME(pqstm, desc, ai_pqstm_desc, ZEND_ACC_PUBLIC)
+       PHP_ME(pqstm, execAsync, ai_pqstm_exec_async, ZEND_ACC_PUBLIC)
        {0}
 };
 
@@ -1271,6 +1890,9 @@ PHP_MINIT_FUNCTION(pq)
        memcpy(&php_pqconn_object_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
        php_pqconn_object_handlers.read_property = php_pqconn_object_read_prop;
        php_pqconn_object_handlers.write_property = php_pqconn_object_write_prop;
+       php_pqconn_object_handlers.clone_obj = NULL;
+       php_pqconn_object_handlers.get_property_ptr_ptr = NULL;
+       php_pqconn_object_handlers.get_debug_info = php_pq_object_debug_info;
 
        zend_declare_property_long(php_pqconn_class_entry, ZEND_STRL("status"), CONNECTION_BAD, ZEND_ACC_PUBLIC TSRMLS_CC);
        ph.read = php_pqconn_object_read_status;
@@ -1292,6 +1914,10 @@ PHP_MINIT_FUNCTION(pq)
        ph.read = php_pqconn_object_read_types;
        zend_hash_add(&php_pqconn_object_prophandlers, "types", sizeof("types"), (void *) &ph, sizeof(ph), NULL);
 
+       zend_declare_property_bool(php_pqconn_class_entry, ZEND_STRL("busy"), 0, ZEND_ACC_PUBLIC TSRMLS_CC);
+       ph.read = php_pqconn_object_read_busy;
+       zend_hash_add(&php_pqconn_object_prophandlers, "busy", sizeof("busy"), (void *) &ph, sizeof(ph), NULL);
+
        zend_declare_class_constant_long(php_pqconn_class_entry, ZEND_STRL("OK"), CONNECTION_OK TSRMLS_CC);
        zend_declare_class_constant_long(php_pqconn_class_entry, ZEND_STRL("BAD"), CONNECTION_BAD TSRMLS_CC);
        zend_declare_class_constant_long(php_pqconn_class_entry, ZEND_STRL("STARTED"), CONNECTION_STARTED TSRMLS_CC);
@@ -1323,6 +1949,9 @@ PHP_MINIT_FUNCTION(pq)
        memcpy(&php_pqres_object_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
        php_pqres_object_handlers.read_property = php_pqres_object_read_prop;
        php_pqres_object_handlers.write_property = php_pqres_object_write_prop;
+       php_pqres_object_handlers.clone_obj = NULL;
+       php_pqres_object_handlers.get_property_ptr_ptr = NULL;
+       php_pqres_object_handlers.get_debug_info = php_pq_object_debug_info;
 
        zend_declare_property_null(php_pqres_class_entry, ZEND_STRL("status"), ZEND_ACC_PUBLIC TSRMLS_CC);
        ph.read = php_pqres_object_read_status;
@@ -1374,6 +2003,9 @@ PHP_MINIT_FUNCTION(pq)
        memcpy(&php_pqstm_object_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
        php_pqstm_object_handlers.read_property = php_pqstm_object_read_prop;
        php_pqstm_object_handlers.write_property = php_pqstm_object_write_prop;
+       php_pqstm_object_handlers.clone_obj = NULL;
+       php_pqstm_object_handlers.get_property_ptr_ptr = NULL;
+       php_pqstm_object_handlers.get_debug_info = php_pq_object_debug_info;
 
        zend_declare_property_null(php_pqstm_class_entry, ZEND_STRL("name"), ZEND_ACC_PUBLIC TSRMLS_CC);
        ph.read = php_pqstm_object_read_name;