license

[m6w6/ext-pq] / src / php_pq.c

/*
    +--------------------------------------------------------------------+
    | PECL :: pq                                                         |
    +--------------------------------------------------------------------+
    | Redistribution and use in source and binary forms, with or without |
    | modification, are permitted provided that the conditions mentioned |
    | in the accompanying LICENSE file are met.                          |
    +--------------------------------------------------------------------+
    | Copyright (c) 2013, Michael Wallner <mike@php.net>                |
    +--------------------------------------------------------------------+
*/

#ifdef HAVE_CONFIG_H
#       include "config.h"
#endif

#include <php.h>
#include <Zend/zend_interfaces.h>
#include <ext/standard/info.h>
#include <ext/spl/spl_array.h>

#include <libpq-events.h>

#include "php_pq.h"

typedef int STATUS; /* SUCCESS/FAILURE */

/*
ZEND_DECLARE_MODULE_GLOBALS(pq)
*/

const zend_function_entry pq_functions[] = {
        {0}
};

/* {{{ pq_module_entry
 */
zend_module_entry pq_module_entry = {
        STANDARD_MODULE_HEADER,
        "pq",
        pq_functions,
        PHP_MINIT(pq),
        PHP_MSHUTDOWN(pq),
        NULL,/*PHP_RINIT(pq),*/
        NULL,/*PHP_RSHUTDOWN(pq),*/
        PHP_MINFO(pq),
        PHP_PQ_EXT_VERSION,
        STANDARD_MODULE_PROPERTIES
};
/* }}} */

#ifdef COMPILE_DL_PQ
ZEND_GET_MODULE(pq)
#endif

/* {{{ PHP_INI
 */
/* Remove comments and fill if you need to have entries in php.ini
PHP_INI_BEGIN()
    STD_PHP_INI_ENTRY("pq.global_value",      "42", PHP_INI_ALL, OnUpdateLong, global_value, zend_pq_globals, pq_globals)
    STD_PHP_INI_ENTRY("pq.global_string", "foobar", PHP_INI_ALL, OnUpdateString, global_string, zend_pq_globals, pq_globals)
PHP_INI_END()
*/
/* }}} */

/* {{{ php_pq_init_globals
 */
/* Uncomment this function if you have INI entries
static void php_pq_init_globals(zend_pq_globals *pq_globals)
{
        pq_globals->global_value = 0;
        pq_globals->global_string = NULL;
}
*/
/* }}} */

static zend_class_entry *php_pqconn_class_entry;
static zend_class_entry *php_pqres_class_entry;
static zend_class_entry *php_pqstm_class_entry;

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_pqconn_object {
        zend_object zo;
        PGconn *conn;
        int (*poller)(PGconn *);
        unsigned blocking:1;
} php_pqconn_object_t;

typedef enum php_pqres_fetch {
        PHP_PQRES_FETCH_ARRAY,
        PHP_PQRES_FETCH_ASSOC,
        PHP_PQRES_FETCH_OBJECT
} php_pqres_fetch_t;

typedef struct php_pqres_iterator {
        zend_object_iterator zi;
        zval *current_val;
        unsigned index;
        php_pqres_fetch_t fetch_type;
} php_pqres_iterator_t;

typedef struct php_pqres_object {
        zend_object zo;
        PGresult *res;
        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;
        zval *conn;
} php_pqstm_object_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)
{
        php_pqres_iterator_t *iter;
        zval *prop, *zfetch_type;

        iter = ecalloc(1, sizeof(*iter));
        iter->zi.funcs = &php_pqres_iterator_funcs;
        iter->zi.data = object;
        Z_ADDREF_P(object);

        zfetch_type = prop = zend_read_property(ce, object, ZEND_STRL("fetchType"), 0 TSRMLS_CC);
        if (Z_TYPE_P(zfetch_type) != IS_LONG) {
                convert_to_long_ex(&zfetch_type);
        }
        iter->fetch_type = Z_LVAL_P(zfetch_type);
        if (zfetch_type != prop) {
                zval_ptr_dtor(&zfetch_type);
        }
        if (Z_REFCOUNT_P(prop)) {
                zval_ptr_dtor(&prop);
        } else {
                zval_dtor(prop);
                FREE_ZVAL(prop);
        }

        return (zend_object_iterator *) iter;
}

static void php_pqres_iterator_dtor(zend_object_iterator *i TSRMLS_DC)
{
        php_pqres_iterator_t *iter = (php_pqres_iterator_t *) i;

        if (iter->current_val) {
                zval_ptr_dtor(&iter->current_val);
                iter->current_val = NULL;
        }
        zval_ptr_dtor((zval **) &iter->zi.data);
        efree(iter);
}

static STATUS php_pqres_iterator_valid(zend_object_iterator *i TSRMLS_DC)
{
        php_pqres_iterator_t *iter = (php_pqres_iterator_t *) i;
        php_pqres_object_t *obj = zend_object_store_get_object(iter->zi.data TSRMLS_CC);

        if (PQresultStatus(obj->res) != PGRES_TUPLES_OK) {
                return FAILURE;
        }
        if (PQntuples(obj->res) <= iter->index) {
                return FAILURE;
        }

        return SUCCESS;
}

static zval *php_pqres_row_to_zval(PGresult *res, unsigned row, php_pqres_fetch_t fetch_type TSRMLS_DC)
{
        zval *data;
        int c, cols;

        MAKE_STD_ZVAL(data);
        if (PHP_PQRES_FETCH_OBJECT == fetch_type) {
                object_init(data);
        } else {
                array_init(data);
        }

        for (c = 0, cols = PQnfields(res); c < cols; ++c) {
                if (PQgetisnull(res, row, c)) {
                        switch (fetch_type) {
                        case PHP_PQRES_FETCH_OBJECT:
                                add_property_null(data, PQfname(res, c));
                                break;

                        case PHP_PQRES_FETCH_ASSOC:
                                add_assoc_null(data, PQfname(res, c));
                                break;

                        case PHP_PQRES_FETCH_ARRAY:
                                add_index_null(data, c);
                                break;
                        }
                } else {
                        char *val = PQgetvalue(res, row, c);
                        int len = PQgetlength(res, row, c);

                        switch (fetch_type) {
                        case PHP_PQRES_FETCH_OBJECT:
                                add_property_stringl(data, PQfname(res, c), val, len, 1);
                                break;

                        case PHP_PQRES_FETCH_ASSOC:
                                add_assoc_stringl(data, PQfname(res, c), val, len, 1);
                                break;

                        case PHP_PQRES_FETCH_ARRAY:
                                add_index_stringl(data, c, val, len ,1);
                                break;
                        }
                }
        }

        return data;
}

static void php_pqres_iterator_current(zend_object_iterator *i, zval ***data_ptr TSRMLS_DC)
{
        php_pqres_iterator_t *iter = (php_pqres_iterator_t *) i;
        php_pqres_object_t *obj = zend_object_store_get_object(iter->zi.data TSRMLS_CC);

        if (iter->current_val) {
                zval_ptr_dtor(&iter->current_val);
        }
        iter->current_val = php_pqres_row_to_zval(obj->res, iter->index, iter->fetch_type TSRMLS_CC);
        *data_ptr = &iter->current_val;
}

static int php_pqres_iterator_key(zend_object_iterator *i, char **key_str, uint *key_len, ulong *key_num TSRMLS_DC)
{
        php_pqres_iterator_t *iter = (php_pqres_iterator_t *) i;

        *key_num = (ulong) iter->index;

        return HASH_KEY_IS_LONG;
}

static void php_pqres_iterator_next(zend_object_iterator *i TSRMLS_DC)
{
        php_pqres_iterator_t *iter = (php_pqres_iterator_t *) i;

        ++iter->index;
}

static void php_pqres_iterator_rewind(zend_object_iterator *i TSRMLS_DC)
{
        php_pqres_iterator_t *iter = (php_pqres_iterator_t *) i;

        iter->index = 0;
}

static zend_object_iterator_funcs php_pqres_iterator_funcs = {
        php_pqres_iterator_dtor,
        /* check for end of iteration (FAILURE or SUCCESS if data is valid) */
        php_pqres_iterator_valid,
        /* fetch the item data for the current element */
        php_pqres_iterator_current,
        /* fetch the key for the current element (return HASH_KEY_IS_STRING or HASH_KEY_IS_LONG) (optional, may be NULL) */
        php_pqres_iterator_key,
        /* step forwards to next element */
        php_pqres_iterator_next,
        /* rewind to start of data (optional, may be NULL) */
        php_pqres_iterator_rewind,
        /* invalidate current value/key (optional, may be NULL) */
        NULL
};

static void php_pqconn_object_free(void *o TSRMLS_DC)
{
        php_pqconn_object_t *obj = o;

        if (obj->conn) {
                PQfinish(obj->conn);
                obj->conn = NULL;
        }
        zend_object_std_dtor((zend_object *) o TSRMLS_CC);
        efree(obj);
}

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;
        }
        if (obj->iter) {
                php_pqres_iterator_dtor((zend_object_iterator *) obj->iter TSRMLS_CC);
                obj->iter = NULL;
        }
        zend_object_std_dtor((zend_object *) o TSRMLS_CC);
        efree(obj);
}

static void php_pqstm_object_free(void *o TSRMLS_DC)
{
        php_pqstm_object_t *obj = o;

        if (obj->name) {
                efree(obj->name);
                obj->name = NULL;
        }
        if (obj->conn) {
                zval_ptr_dtor(&obj->conn);
                obj->conn = NULL;
        }
        zend_object_std_dtor((zend_object *) o TSRMLS_CC);
        efree(obj);
}

static zend_object_value php_pqconn_create_object_ex(zend_class_entry *ce, PGconn *conn, php_pqconn_object_t **ptr TSRMLS_DC)
{
        zend_object_value ov;
        php_pqconn_object_t *o;

        o = ecalloc(1, sizeof(*o));
        zend_object_std_init((zend_object *) o, ce TSRMLS_CC);
        object_properties_init((zend_object *) o, ce);

        if (ptr) {
                *ptr = o;
        }

        if (conn) {
                o->conn = conn;
                o->blocking = !PQisnonblocking(o->conn);
        }

        ov.handle = zend_objects_store_put((zend_object *) o, NULL, php_pqconn_object_free, NULL TSRMLS_CC);
        ov.handlers = &php_pqconn_object_handlers;

        return ov;
}

static zend_object_value php_pqres_create_object_ex(zend_class_entry *ce, PGresult *res, php_pqres_object_t **ptr TSRMLS_DC)
{
        zend_object_value ov;
        php_pqres_object_t *o;

        o = ecalloc(1, sizeof(*o));
        zend_object_std_init((zend_object *) o, ce TSRMLS_CC);
        object_properties_init((zend_object *) o, ce);

        if (ptr) {
                *ptr = o;
        }

        if (res) {
                o->res = res;
        }

        ov.handle = zend_objects_store_put((zend_object *) o, NULL, php_pqres_object_free, NULL TSRMLS_CC);
        ov.handlers = &php_pqres_object_handlers;

        return ov;
}

static zend_object_value php_pqstm_create_object_ex(zend_class_entry *ce, zval *conn, const char *name, php_pqstm_object_t **ptr TSRMLS_DC)
{
        zend_object_value ov;
        php_pqstm_object_t *o;

        o = ecalloc(1, sizeof(*o));
        zend_object_std_init((zend_object *) o, ce TSRMLS_CC);
        object_properties_init((zend_object *) o, ce);

        if (ptr) {
                *ptr = o;
        }

        if (conn) {
                Z_ADDREF_P(conn);
                o->conn = conn;
        }

        if (name) {
                o->name = estrdup(name);
        }

        ov.handle = zend_objects_store_put((zend_object *) o, NULL, php_pqstm_object_free, NULL TSRMLS_CC);
        ov.handlers = &php_pqstm_object_handlers;

        return ov;
}

static zend_object_value php_pqconn_create_object(zend_class_entry *class_type TSRMLS_DC)
{
        return php_pqconn_create_object_ex(class_type, NULL, NULL TSRMLS_CC);
}

static zend_object_value php_pqres_create_object(zend_class_entry *class_type TSRMLS_DC)
{
        return php_pqres_create_object_ex(class_type, NULL, NULL TSRMLS_CC);
}

static zend_object_value php_pqstm_create_object(zend_class_entry *class_type TSRMLS_DC)
{
        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;

typedef void (*php_pq_object_prophandler_func_t)(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 void php_pqconn_object_read_status(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)
{
        php_pqconn_object_t *obj = o;

        RETVAL_LONG(PQtransactionStatus(obj->conn));
}

static void php_pqconn_object_read_socket(void *o, zval *return_value TSRMLS_DC)
{
        php_pqconn_object_t *obj = o;
        php_stream *stream;
        int socket = PQsocket(obj->conn);

        if ((stream = php_stream_fopen_from_fd(socket, "r+b", NULL))) {
                php_stream_to_zval(stream, return_value);
        } else {
                RETVAL_NULL();
        }
}

static void php_pqconn_object_read_error_message(void *o, zval *return_value TSRMLS_DC)
{
        php_pqconn_object_t *obj = o;
        char *error = PQerrorMessage(obj->conn);

        if (error) {
                RETVAL_STRING(error, 1);
        } else {
                RETVAL_NULL();
        }
}

/* FIXME: extend to types->nspname->typname */
#define PHP_PQ_TYPES_QUERY \
        "select t.oid, t.* " \
        "from pg_type t join pg_namespace n on t.typnamespace=n.oid " \
        "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)
{
        php_pqconn_object_t *obj = o;
        PGresult *res = PQexec(obj->conn, PHP_PQ_TYPES_QUERY);

        /* FIXME: cache that */
        if (res) {
                if (PGRES_TUPLES_OK == PQresultStatus(res)) {
                        int r, rows;
                        zval *byoid, *byname;

                        MAKE_STD_ZVAL(byoid);
                        MAKE_STD_ZVAL(byname);
                        object_init(byoid);
                        object_init(byname);
                        object_init(return_value);
                        for (r = 0, rows = PQntuples(res); r < rows; ++r) {
                                zval *row = php_pqres_row_to_zval(res, r, PHP_PQRES_FETCH_OBJECT TSRMLS_CC);

                                add_property_zval(byoid, PQgetvalue(res, r, 0), row);
                                add_property_zval(byname, PQgetvalue(res, r, 1), row);
                                zval_ptr_dtor(&row);
                        }

                        add_property_zval(return_value, "byOid", byoid);
                        add_property_zval(return_value, "byName", byname);
                        zval_ptr_dtor(&byoid);
                        zval_ptr_dtor(&byname);
                } else {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not fetch types: %s", PQresultErrorMessage(res));
                }
                PQclear(res);
        } else {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not fetch types: %s", PQerrorMessage(obj->conn));
        }
}

static void php_pqres_object_read_status(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)
{
        php_pqres_object_t *obj = o;
        char *error = PQresultErrorMessage(obj->res);

        if (error) {
                RETVAL_STRING(error, 1);
        } else {
                RETVAL_NULL();
        }
}

static void php_pqres_object_read_num_rows(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)
{
        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)
{
        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)
{
        php_pqres_object_t *obj = o;

        if (obj->iter) {
                RETVAL_LONG(obj->iter->fetch_type);
        } else {
                RETVAL_LONG(PHP_PQRES_FETCH_ARRAY);
        }
}

static void php_pqres_object_write_fetch_type(void *o, zval *value TSRMLS_DC)
{
        php_pqres_object_t *obj = o;
        zval *zfetch_type = value;

        if (Z_TYPE_P(zfetch_type) != IS_LONG) {
                convert_to_long_ex(&zfetch_type);
        }

        obj->iter->fetch_type = Z_LVAL_P(zfetch_type);

        if (zfetch_type != value) {
                zval_ptr_dtor(&zfetch_type);
        }
}

static void php_pqstm_object_read_name(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)
{
        php_pqstm_object_t *obj = o;

        RETVAL_ZVAL(obj->conn, 1, 0);
}

static zval *php_pqconn_object_read_prop(zval *object, zval *member, int type, const zend_literal *key TSRMLS_DC)
{
        php_pqconn_object_t *obj = zend_object_store_get_object(object TSRMLS_CC);
        php_pq_object_prophandler_t *handler;
        zval *return_value;

        if (!obj->conn) {
                zend_error(E_WARNING, "Connection not initialized");
        } else if (SUCCESS == zend_hash_find(&php_pqconn_object_prophandlers, Z_STRVAL_P(member), Z_STRLEN_P(member)+1, (void *) &handler)) {
                if (type == BP_VAR_R) {
                        ALLOC_ZVAL(return_value);
                        Z_SET_REFCOUNT_P(return_value, 0);
                        Z_UNSET_ISREF_P(return_value);

                        handler->read(obj, return_value TSRMLS_CC);
                } else {
                        zend_error(E_ERROR, "Cannot access pq\\Connection properties by reference or array key/index");
                        return_value = NULL;
                }
        } else {
                return_value = zend_get_std_object_handlers()->read_property(object, member, type, key TSRMLS_CC);
        }

        return return_value;
}

static void php_pqconn_object_write_prop(zval *object, zval *member, zval *value, const zend_literal *key TSRMLS_DC)
{
        php_pqconn_object_t *obj = zend_object_store_get_object(object TSRMLS_CC);
        php_pq_object_prophandler_t *handler;

        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);
                }
        } else {
                zend_get_std_object_handlers()->write_property(object, member, value, key TSRMLS_CC);
        }
}

static zval *php_pqres_object_read_prop(zval *object, zval *member, int type, const zend_literal *key TSRMLS_DC)
{
        php_pqres_object_t *obj = zend_object_store_get_object(object TSRMLS_CC);
        php_pq_object_prophandler_t *handler;
        zval *return_value;

        if (!obj->res) {
                zend_error(E_WARNING, "Result not initialized");
        } else if (SUCCESS == zend_hash_find(&php_pqres_object_prophandlers, Z_STRVAL_P(member), Z_STRLEN_P(member)+1, (void *) &handler)) {
                if (type == BP_VAR_R) {
                        ALLOC_ZVAL(return_value);
                        Z_SET_REFCOUNT_P(return_value, 0);
                        Z_UNSET_ISREF_P(return_value);

                        handler->read(obj, return_value TSRMLS_CC);
                } else {
                        zend_error(E_ERROR, "Cannot access pq\\Result properties by reference or array key/index");
                        return_value = NULL;
                }
        } else {
                return_value = zend_get_std_object_handlers()->read_property(object, member, type, key TSRMLS_CC);
        }

        return return_value;
}

static void php_pqres_object_write_prop(zval *object, zval *member, zval *value, const zend_literal *key TSRMLS_DC)
{
        php_pqres_object_t *obj = zend_object_store_get_object(object TSRMLS_CC);
        php_pq_object_prophandler_t *handler;

        if (!obj->res) {
                zend_error(E_WARNING, "Result not initialized");
        } else if (SUCCESS == zend_hash_find(&php_pqres_object_prophandlers, Z_STRVAL_P(member), Z_STRLEN_P(member)+1, (void *) &handler)) {
                if (handler->write) {
                        /* ensure obj->iter is initialized, for e.g. write_fetch_type */
                        if (!obj->iter) {
                                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);
                }
        } else {
                zend_get_std_object_handlers()->write_property(object, member, value, key TSRMLS_CC);
        }
}

static zval *php_pqstm_object_read_prop(zval *object, zval *member, int type, const zend_literal *key TSRMLS_DC)
{
        php_pqstm_object_t *obj = zend_object_store_get_object(object TSRMLS_CC);
        php_pq_object_prophandler_t *handler;
        zval *return_value;

        if (!obj->conn) {
                zend_error(E_WARNING, "Statement not initialized");
        } else if (SUCCESS == zend_hash_find(&php_pqstm_object_prophandlers, Z_STRVAL_P(member), Z_STRLEN_P(member)+1, (void *) &handler)) {
                if (type == BP_VAR_R) {
                        ALLOC_ZVAL(return_value);
                        Z_SET_REFCOUNT_P(return_value, 0);
                        Z_UNSET_ISREF_P(return_value);

                        handler->read(obj, return_value TSRMLS_CC);
                } else {
                        zend_error(E_ERROR, "Cannot access pq\\Statement properties by reference or array key/index");
                        return_value = NULL;
                }
        } else {
                return_value = zend_get_std_object_handlers()->read_property(object, member, type, key TSRMLS_CC);
        }

        return return_value;
}

static void php_pqstm_object_write_prop(zval *object, zval *member, zval *value, const zend_literal *key TSRMLS_DC)
{
        php_pqstm_object_t *obj = zend_object_store_get_object(object TSRMLS_CC);
        php_pq_object_prophandler_t *handler;

        if (!obj->conn) {
                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);
                }
        } else {
                zend_get_std_object_handlers()->write_property(object, member, value, key TSRMLS_CC);
        }
}

ZEND_BEGIN_ARG_INFO_EX(ai_pqconn_construct, 0, 0, 1)
        ZEND_ARG_INFO(0, dsn)
        ZEND_ARG_INFO(0, block)
ZEND_END_ARG_INFO();
static PHP_METHOD(pqconn, __construct) {
        zend_error_handling zeh;
        char *dsn_str;
        int dsn_len;
        zend_bool block = 1;

        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, &block)) {
                php_pqconn_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);

                if (obj->conn) {
                        PQfinish(obj->conn);
                }
                if ((obj->blocking = block)) {
                        obj->conn = PQconnectdb(dsn_str);
                } else {
                        obj->conn = PQconnectStart(dsn_str);
                        obj->poller = (int (*)(PGconn*)) PQconnectPoll;
                }

                if (CONNECTION_BAD == PQstatus(obj->conn)) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection failed: %s", PQerrorMessage(obj->conn));
                }
        }
        zend_restore_error_handling(&zeh TSRMLS_CC);
}

ZEND_BEGIN_ARG_INFO_EX(ai_pqconn_reset, 0, 0, 0)
ZEND_END_ARG_INFO();
static PHP_METHOD(pqconn, reset) {
        if (SUCCESS == zend_parse_parameters_none()) {
                php_pqconn_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);

                if (obj->conn) {
                        if (obj->blocking) {
                                PQreset(obj->conn);
                                RETURN_TRUE; /* probably ;) */
                        } if (PQresetStart(obj->conn)) {
                                obj->poller = (int (*)(PGconn*)) PQresetPoll;
                                RETURN_TRUE;
                        }
                } else {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
                }
                RETURN_FALSE;
        }
}

ZEND_BEGIN_ARG_INFO_EX(ai_pqconn_poll, 0, 0, 0)
ZEND_END_ARG_INFO();
static PHP_METHOD(pqconn, poll) {
        if (SUCCESS == zend_parse_parameters_none()) {
                php_pqconn_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);

                if (obj->conn) {
                        if (obj->poller) {
                                RETURN_LONG(obj->poller(obj->conn));
                        } else {
                                php_error_docref(NULL TSRMLS_CC, E_WARNING, "No asynchronous operation active");
                        }
                } else {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
                }
                RETURN_FALSE;
        }
}

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: %s", PQresStatus(PQresultStatus(res)), 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();
static PHP_METHOD(pqconn, exec) {
        zend_error_handling zeh;
        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", &query_str, &query_len)) {
                php_pqconn_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);

                if (obj->conn) {
                        PGresult *res = PQexec(obj->conn, query_str);

                        if (res) {
                                if (SUCCESS == php_pqres_success(res TSRMLS_CC)) {
                                        return_value->type = IS_OBJECT;
                                        return_value->value.obj = php_pqres_create_object_ex(php_pqres_class_entry, res, NULL TSRMLS_CC);
                                }
                        } else {
                                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not execute query: %s", PQerrorMessage(obj->conn));
                        }
                } else {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
                }
        }
        zend_restore_error_handling(&zeh TSRMLS_CC);
}

static int apply_to_oid(void *p, void *arg TSRMLS_DC)
{
        Oid **types = arg;
        zval **ztype = p;

        if (Z_TYPE_PP(ztype) != IS_LONG) {
                convert_to_long_ex(ztype);
        }

        **types = Z_LVAL_PP(ztype);
        ++*types;

        if (*ztype != *(zval **)p) {
                zval_ptr_dtor(ztype);
        }
        return ZEND_HASH_APPLY_KEEP;
}

static int apply_to_param(void *p TSRMLS_DC, int argc, va_list argv, zend_hash_key *key)
{
        char ***params;
        HashTable *zdtor;
        zval **zparam = p;

        params = (char ***) va_arg(argv, char ***);
        zdtor = (HashTable *) va_arg(argv, HashTable *);

        if (Z_TYPE_PP(zparam) == IS_NULL) {
                **params = NULL;
                ++*params;
        } else {
                if (Z_TYPE_PP(zparam) != IS_STRING) {
                        convert_to_string_ex(zparam);
                }

                **params = Z_STRVAL_PP(zparam);
                ++*params;

                if (*zparam != *(zval **)p) {
                        zend_hash_next_index_insert(zdtor, zparam, sizeof(zval *), NULL);
                }
        }
        return ZEND_HASH_APPLY_KEEP;
}

ZEND_BEGIN_ARG_INFO_EX(ai_pqconn_exec_params, 0, 0, 2)
        ZEND_ARG_INFO(0, query)
        ZEND_ARG_ARRAY_INFO(0, params, 0)
        ZEND_ARG_ARRAY_INFO(0, types, 1)
ZEND_END_ARG_INFO();
static PHP_METHOD(pqconn, execParams) {
        zend_error_handling zeh;
        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/!", &query_str, &query_len, &zparams, &ztypes)) {
                php_pqconn_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);

                if (obj->conn) {
                        PGresult *res;
                        int count = 0;
                        Oid *types = NULL;
                        char **params = NULL;
                        HashTable zdtor;

                        ZEND_INIT_SYMTABLE(&zdtor);

                        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);
                        }

                        res = PQexecParams(obj->conn, query_str, count, types, (const char *const*) params, NULL, NULL, 0);

                        zend_hash_destroy(&zdtor);
                        if (types) {
                                efree(types);
                        }
                        if (params) {
                                efree(params);
                        }

                        if (res) {
                                if (SUCCESS == php_pqres_success(res TSRMLS_CC)) {
                                        return_value->type = IS_OBJECT;
                                        return_value->value.obj = php_pqres_create_object_ex(php_pqres_class_entry, res, NULL TSRMLS_CC);
                                }
                        } else {
                                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not execute query: %s", PQerrorMessage(obj->conn));
                        }
                } else {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
                }
        }
        zend_restore_error_handling(&zeh TSRMLS_CC);
}

static STATUS php_pqconn_prepare(PGconn *conn, const char *name, const char *query, HashTable *typest TSRMLS_DC)
{
        Oid *types = NULL;
        int count = 0;
        PGresult *res;

        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);
        }

        res = PQprepare(conn, name, query, count, types);

        if (types) {
                efree(types);
        }

        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));
                }
                PQclear(res);
        } else {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not prepare statement: %s", PQerrorMessage(conn));
        }
        return FAILURE;
}

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_END_ARG_INFO();
static PHP_METHOD(pqconn, prepare) {
        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) {
                        if (SUCCESS == php_pqconn_prepare(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);
                        }
                } else {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
                }
        }
}

static zend_function_entry php_pqconn_methods[] = {
        PHP_ME(pqconn, __construct, ai_pqconn_construct, ZEND_ACC_PUBLIC|ZEND_ACC_CTOR)
        PHP_ME(pqconn, reset, ai_pqconn_reset, ZEND_ACC_PUBLIC)
        PHP_ME(pqconn, poll, ai_pqconn_poll, ZEND_ACC_PUBLIC)
        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)
        {0}
};

static zval **php_pqres_iteration(zval *this_ptr, php_pqres_object_t *obj, php_pqres_fetch_t fetch_type TSRMLS_DC)
{
        zval **row = NULL;
        php_pqres_fetch_t orig_fetch;

        if (!obj) {
         obj = zend_object_store_get_object(getThis() TSRMLS_CC);
        }

        if (!obj->iter) {
                obj->iter = (php_pqres_iterator_t *) php_pqres_iterator_init(Z_OBJCE_P(getThis()), getThis(), 0 TSRMLS_CC);
                obj->iter->zi.funcs->rewind((zend_object_iterator *) obj->iter TSRMLS_CC);
        }
        orig_fetch = obj->iter->fetch_type;
        obj->iter->fetch_type = fetch_type;
        if (SUCCESS == obj->iter->zi.funcs->valid((zend_object_iterator *) obj->iter TSRMLS_CC)) {
                obj->iter->zi.funcs->get_current_data((zend_object_iterator *) obj->iter, &row TSRMLS_CC);
                obj->iter->zi.funcs->move_forward((zend_object_iterator *) obj->iter TSRMLS_CC);
        }
        obj->iter->fetch_type = orig_fetch;

        return row ? row : NULL;
}

ZEND_BEGIN_ARG_INFO_EX(ai_pqres_fetch_row, 0, 0, 0)
        ZEND_ARG_INFO(0, fetch_type)
ZEND_END_ARG_INFO();
static PHP_METHOD(pqres, fetchRow) {
        zend_error_handling zeh;
        php_pqres_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);
        long fetch_type = obj->iter ? obj->iter->fetch_type : PHP_PQRES_FETCH_ARRAY;

        zend_replace_error_handling(EH_THROW, NULL, &zeh TSRMLS_CC);
        if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &fetch_type)) {
                zval **row = php_pqres_iteration(getThis(), obj, fetch_type TSRMLS_CC);

                if (row) {
                        RETVAL_ZVAL(*row, 1, 0);
                } else {
                        RETVAL_FALSE;
                }
        }
        zend_restore_error_handling(&zeh TSRMLS_CC);
}

static zval **column_at(zval *row, int col TSRMLS_DC)
{
        zval **data = NULL;
        HashTable *ht = HASH_OF(row);
        int count = zend_hash_num_elements(ht);

        if (col < count) {
                zend_hash_internal_pointer_reset(ht);
                while (col-- > 0) {
                        zend_hash_move_forward(ht);
                }
                zend_hash_get_current_data(ht, (void *) &data);
        } else {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Column index %d does excess column count %d", col, count);
        }
        return data;
}

ZEND_BEGIN_ARG_INFO_EX(ai_pqres_fetch_col, 0, 0, 0)
        ZEND_ARG_INFO(0, col_num)
ZEND_END_ARG_INFO();
static PHP_METHOD(pqres, fetchCol) {
        zend_error_handling zeh;
        long fetch_col = 0;

        zend_replace_error_handling(EH_THROW, NULL, &zeh TSRMLS_CC);
        if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &fetch_col)) {
                php_pqres_object_t *obj = zend_object_store_get_object(getThis() TSRMLS_CC);
                zval **row = php_pqres_iteration(getThis(), obj, obj->iter ? obj->iter->fetch_type : 0 TSRMLS_CC);

                if (row) {
                        zval **col = column_at(*row, fetch_col TSRMLS_CC);

                        if (col) {
                                RETVAL_ZVAL(*col, 1, 0);
                        } else {
                                RETVAL_FALSE;
                        }
                } else {
                        RETVAL_FALSE;
                }
        }
        zend_restore_error_handling(&zeh TSRMLS_CC);

}

static zend_function_entry php_pqres_methods[] = {
        PHP_ME(pqres, fetchRow, ai_pqres_fetch_row, ZEND_ACC_PUBLIC)
        PHP_ME(pqres, fetchCol, ai_pqres_fetch_col, ZEND_ACC_PUBLIC)
        {0}
};

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_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_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)) {
                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);

                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);
                        }
                } else {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
                }
        }
}

ZEND_BEGIN_ARG_INFO_EX(ai_pqstm_exec, 0, 0, 0)
        ZEND_ARG_ARRAY_INFO(0, "params", 1)
ZEND_END_ARG_INFO();
static PHP_METHOD(pqstm, exec) {
        zend_error_handling zeh;
        zval *zparams = NULL;

        zend_replace_error_handling(EH_THROW, NULL, &zeh TSRMLS_CC);
        if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|a/!", &zparams)) {
                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 = 0;
                                char **params = NULL;
                                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);
                                }

                                res = PQexecPrepared(conn_obj->conn, obj->name, count, (const char *const*) params, NULL, NULL, 0);

                                if (params) {
                                        efree(params);
                                }
                                zend_hash_destroy(&zdtor);

                                if (res) {
                                        if (SUCCESS == php_pqres_success(res TSRMLS_CC)) {
                                                return_value->type = IS_OBJECT;
                                                return_value->value.obj = php_pqres_create_object_ex(php_pqres_class_entry, res, NULL TSRMLS_CC);
                                        }
                                } else {
                                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not execute statement: %s", PQerrorMessage(conn_obj->conn));
                                }
                        } else {
                                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
                        }
                } else {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Statement not initialized");
                }
        }
        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) {
        zend_error_handling zeh;

        zend_replace_error_handling(EH_THROW, NULL, &zeh TSRMLS_CC);
        if (SUCCESS == zend_parse_parameters_none()) {
                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) {
                                PGresult *res = PQdescribePrepared(conn_obj->conn, obj->name);

                                if (res) {
                                        if (SUCCESS == php_pqres_success(res TSRMLS_CC)) {
                                                int p, params;

                                                array_init(return_value);
                                                for (p = 0, params = PQnparams(res); p < params; ++p) {
                                                        add_next_index_long(return_value, PQparamtype(res, p));
                                                }
                                        }
                                } else {
                                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not describe statement: %s", PQerrorMessage(conn_obj->conn));
                                }
                        } else {
                                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not initialized");
                        }
                } else {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Statement not initialized");
                }
        }
        zend_restore_error_handling(&zeh TSRMLS_CC);
}

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)
        {0}
};

/* {{{ PHP_MINIT_FUNCTION
 */
PHP_MINIT_FUNCTION(pq)
{
        zend_class_entry ce = {0};
        php_pq_object_prophandler_t ph = {0};

        zend_hash_init(&php_pqconn_object_prophandlers, 1, NULL, NULL, 1);
        INIT_NS_CLASS_ENTRY(ce, "pq", "Connection", php_pqconn_methods);
        php_pqconn_class_entry = zend_register_internal_class_ex(&ce, NULL, NULL TSRMLS_CC);
        php_pqconn_class_entry->create_object = php_pqconn_create_object;
        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;

        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;
        zend_hash_add(&php_pqconn_object_prophandlers, "status", sizeof("status"), (void *) &ph, sizeof(ph), NULL);

        zend_declare_property_long(php_pqconn_class_entry, ZEND_STRL("transactionStatus"), PQTRANS_UNKNOWN, ZEND_ACC_PUBLIC TSRMLS_CC);
        ph.read = php_pqconn_object_read_transaction_status;
        zend_hash_add(&php_pqconn_object_prophandlers, "transactionStatus", sizeof("transactionStatus"), (void *) &ph, sizeof(ph), NULL);

        zend_declare_property_null(php_pqconn_class_entry, ZEND_STRL("socket"), ZEND_ACC_PUBLIC TSRMLS_CC);
        ph.read = php_pqconn_object_read_socket;
        zend_hash_add(&php_pqconn_object_prophandlers, "socket", sizeof("socket"), (void *) &ph, sizeof(ph), NULL);

        zend_declare_property_null(php_pqconn_class_entry, ZEND_STRL("errorMessage"), ZEND_ACC_PUBLIC TSRMLS_CC);
        ph.read = php_pqconn_object_read_error_message;
        zend_hash_add(&php_pqconn_object_prophandlers, "errorMessage", sizeof("errorMessage"), (void *) &ph, sizeof(ph), NULL);

        zend_declare_property_null(php_pqconn_class_entry, ZEND_STRL("types"), ZEND_ACC_PUBLIC TSRMLS_CC);
        ph.read = php_pqconn_object_read_types;
        zend_hash_add(&php_pqconn_object_prophandlers, "types", sizeof("types"), (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);
        zend_declare_class_constant_long(php_pqconn_class_entry, ZEND_STRL("MADE"), CONNECTION_MADE TSRMLS_CC);
        zend_declare_class_constant_long(php_pqconn_class_entry, ZEND_STRL("AWAITING_RESPONSE"), CONNECTION_AWAITING_RESPONSE TSRMLS_CC);
        zend_declare_class_constant_long(php_pqconn_class_entry, ZEND_STRL("AUTH_OK"), CONNECTION_AUTH_OK TSRMLS_CC);
        zend_declare_class_constant_long(php_pqconn_class_entry, ZEND_STRL("SSL_STARTUP"), CONNECTION_SSL_STARTUP TSRMLS_CC);
        zend_declare_class_constant_long(php_pqconn_class_entry, ZEND_STRL("SETENV"), CONNECTION_SETENV TSRMLS_CC);

        zend_declare_class_constant_long(php_pqconn_class_entry, ZEND_STRL("TRANS_IDLE"), PQTRANS_IDLE TSRMLS_CC);
        zend_declare_class_constant_long(php_pqconn_class_entry, ZEND_STRL("TRANS_ACTIVE"), PQTRANS_ACTIVE TSRMLS_CC);
        zend_declare_class_constant_long(php_pqconn_class_entry, ZEND_STRL("TRANS_INTRANS"), PQTRANS_INTRANS TSRMLS_CC);
        zend_declare_class_constant_long(php_pqconn_class_entry, ZEND_STRL("TRANS_INERROR"), PQTRANS_INERROR TSRMLS_CC);
        zend_declare_class_constant_long(php_pqconn_class_entry, ZEND_STRL("TRANS_UNKNOWN"), PQTRANS_UNKNOWN TSRMLS_CC);

        zend_declare_class_constant_long(php_pqconn_class_entry, ZEND_STRL("POLLING_FAILED"), PGRES_POLLING_FAILED TSRMLS_CC);
        zend_declare_class_constant_long(php_pqconn_class_entry, ZEND_STRL("POLLING_READING"), PGRES_POLLING_READING TSRMLS_CC);
        zend_declare_class_constant_long(php_pqconn_class_entry, ZEND_STRL("POLLING_WRITING"), PGRES_POLLING_WRITING TSRMLS_CC);
        zend_declare_class_constant_long(php_pqconn_class_entry, ZEND_STRL("POLLING_OK"), PGRES_POLLING_OK TSRMLS_CC);

        zend_hash_init(&php_pqres_object_prophandlers, 1, NULL, NULL, 1);
        memset(&ce, 0, sizeof(ce));
        INIT_NS_CLASS_ENTRY(ce, "pq", "Result", php_pqres_methods);
        php_pqres_class_entry = zend_register_internal_class_ex(&ce, NULL, NULL TSRMLS_CC);
        php_pqres_class_entry->create_object = php_pqres_create_object;
        php_pqres_class_entry->iterator_funcs.funcs = &php_pqres_iterator_funcs;
        php_pqres_class_entry->get_iterator = php_pqres_iterator_init;

        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;

        zend_declare_property_null(php_pqres_class_entry, ZEND_STRL("status"), ZEND_ACC_PUBLIC TSRMLS_CC);
        ph.read = php_pqres_object_read_status;
        zend_hash_add(&php_pqres_object_prophandlers, "status", sizeof("status"), (void *) &ph, sizeof(ph), NULL);

        zend_declare_property_null(php_pqres_class_entry, ZEND_STRL("errorMessage"), ZEND_ACC_PUBLIC TSRMLS_CC);
        ph.read = php_pqres_object_read_error_message;
        zend_hash_add(&php_pqres_object_prophandlers, "errorMessage", sizeof("errorMessage"), (void *) &ph, sizeof(ph), NULL);

        zend_declare_property_long(php_pqres_class_entry, ZEND_STRL("numRows"), 0, ZEND_ACC_PUBLIC TSRMLS_CC);
        ph.read = php_pqres_object_read_num_rows;
        zend_hash_add(&php_pqres_object_prophandlers, "numRows", sizeof("numRows"), (void *) &ph, sizeof(ph), NULL);

        zend_declare_property_long(php_pqres_class_entry, ZEND_STRL("numCols"), 0, ZEND_ACC_PUBLIC TSRMLS_CC);
        ph.read = php_pqres_object_read_num_cols;
        zend_hash_add(&php_pqres_object_prophandlers, "numCols", sizeof("numCols"), (void *) &ph, sizeof(ph), NULL);

        zend_declare_property_long(php_pqres_class_entry, ZEND_STRL("affectedRows"), 0, ZEND_ACC_PUBLIC TSRMLS_CC);
        ph.read = php_pqres_object_read_affected_rows;
        zend_hash_add(&php_pqres_object_prophandlers, "affectedRows", sizeof("affectedRows"), (void *) &ph, sizeof(ph), NULL);

        zend_declare_property_long(php_pqres_class_entry, ZEND_STRL("fetchType"), PHP_PQRES_FETCH_ARRAY, ZEND_ACC_PUBLIC TSRMLS_CC);
        ph.read = php_pqres_object_read_fetch_type;
        ph.write = php_pqres_object_write_fetch_type;
        zend_hash_add(&php_pqres_object_prophandlers, "fetchType", sizeof("fetchType"), (void *) &ph, sizeof(ph), NULL);
        ph.write = NULL;

        zend_declare_class_constant_long(php_pqres_class_entry, ZEND_STRL("EMPTY_QUERY"), PGRES_EMPTY_QUERY TSRMLS_CC);
        zend_declare_class_constant_long(php_pqres_class_entry, ZEND_STRL("COMMAND_OK"), PGRES_COMMAND_OK TSRMLS_CC);
        zend_declare_class_constant_long(php_pqres_class_entry, ZEND_STRL("TUPLES_OK"), PGRES_TUPLES_OK TSRMLS_CC);
        zend_declare_class_constant_long(php_pqres_class_entry, ZEND_STRL("COPY_OUT"), PGRES_COPY_OUT TSRMLS_CC);
        zend_declare_class_constant_long(php_pqres_class_entry, ZEND_STRL("COPY_IN"), PGRES_COPY_IN TSRMLS_CC);
        zend_declare_class_constant_long(php_pqres_class_entry, ZEND_STRL("BAD_RESPONSE"), PGRES_BAD_RESPONSE TSRMLS_CC);
        zend_declare_class_constant_long(php_pqres_class_entry, ZEND_STRL("NONFATAL_ERROR"), PGRES_NONFATAL_ERROR TSRMLS_CC);
        zend_declare_class_constant_long(php_pqres_class_entry, ZEND_STRL("FATAL_ERROR"), PGRES_FATAL_ERROR TSRMLS_CC);
        zend_declare_class_constant_long(php_pqres_class_entry, ZEND_STRL("COPY_BOTH"), PGRES_COPY_BOTH TSRMLS_CC);
        zend_declare_class_constant_long(php_pqres_class_entry, ZEND_STRL("SINGLE_TUPLE"), PGRES_SINGLE_TUPLE TSRMLS_CC);

        zend_declare_class_constant_long(php_pqres_class_entry, ZEND_STRL("FETCH_ARRAY"), PHP_PQRES_FETCH_ARRAY TSRMLS_CC);
        zend_declare_class_constant_long(php_pqres_class_entry, ZEND_STRL("FETCH_ASSOC"), PHP_PQRES_FETCH_ASSOC TSRMLS_CC);
        zend_declare_class_constant_long(php_pqres_class_entry, ZEND_STRL("FETCH_OBJECT"), PHP_PQRES_FETCH_OBJECT TSRMLS_CC);

        zend_hash_init(&php_pqstm_object_prophandlers, 1, NULL, NULL, 1);
        memset(&ce, 0, sizeof(ce));
        INIT_NS_CLASS_ENTRY(ce, "pq", "Statement", php_pqstm_methods);
        php_pqstm_class_entry = zend_register_internal_class_ex(&ce, NULL, NULL TSRMLS_CC);
        php_pqstm_class_entry->create_object = php_pqstm_create_object;

        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;

        zend_declare_property_null(php_pqstm_class_entry, ZEND_STRL("name"), ZEND_ACC_PUBLIC TSRMLS_CC);
        ph.read = php_pqstm_object_read_name;
        zend_hash_add(&php_pqstm_object_prophandlers, "name", sizeof("name"), (void *) &ph, sizeof(ph), NULL);

        zend_declare_property_null(php_pqstm_class_entry, ZEND_STRL("connection"), ZEND_ACC_PUBLIC TSRMLS_CC);
        ph.read = php_pqstm_object_read_connection;
        zend_hash_add(&php_pqstm_object_prophandlers, "connection", sizeof("connection"), (void *) &ph, sizeof(ph), NULL);

        /*
        REGISTER_INI_ENTRIES();
        */
        return SUCCESS;
}
/* }}} */

/* {{{ PHP_MSHUTDOWN_FUNCTION
 */
PHP_MSHUTDOWN_FUNCTION(pq)
{
        /* uncomment this line if you have INI entries
        UNREGISTER_INI_ENTRIES();
        */
        return SUCCESS;
}
/* }}} */

/* {{{ PHP_MINFO_FUNCTION
 */
PHP_MINFO_FUNCTION(pq)
{
        php_info_print_table_start();
        php_info_print_table_header(2, "pq support", "enabled");
        php_info_print_table_end();

        /* Remove comments if you have entries in php.ini
        DISPLAY_INI_ENTRIES();
        */
}
/* }}} */



/*
 * 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
 */