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mysqlnd_ps.c
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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 2006-2018 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andrey Hristov <[email protected]> |
| Ulf Wendel <[email protected]> |
+----------------------------------------------------------------------+
*/
#include "php.h"
#include "mysqlnd.h"
#include "mysqlnd_wireprotocol.h"
#include "mysqlnd_connection.h"
#include "mysqlnd_priv.h"
#include "mysqlnd_ps.h"
#include "mysqlnd_result.h"
#include "mysqlnd_result_meta.h"
#include "mysqlnd_statistics.h"
#include "mysqlnd_debug.h"
#include "mysqlnd_block_alloc.h"
#include "mysqlnd_ext_plugin.h"
const char * const mysqlnd_not_bound_as_blob = "Can't send long data for non-string/non-binary data types";
const char * const mysqlnd_stmt_not_prepared = "Statement not prepared";
/* Exported by mysqlnd_ps_codec.c */
enum_func_status mysqlnd_stmt_execute_generate_request(MYSQLND_STMT * const s, zend_uchar ** request, size_t *request_len, zend_bool * free_buffer);
enum_func_status mysqlnd_stmt_execute_batch_generate_request(MYSQLND_STMT * const s, zend_uchar ** request, size_t *request_len, zend_bool * free_buffer);
static void mysqlnd_stmt_separate_result_bind(MYSQLND_STMT * const stmt);
static void mysqlnd_stmt_separate_one_result_bind(MYSQLND_STMT * const stmt, const unsigned int param_no);
/* {{{ mysqlnd_stmt::store_result */
static MYSQLND_RES *
MYSQLND_METHOD(mysqlnd_stmt, store_result)(MYSQLND_STMT * const s)
{
enum_func_status ret;
MYSQLND_STMT_DATA * stmt = s? s->data : NULL;
MYSQLND_CONN_DATA * conn = stmt? stmt->conn : NULL;
MYSQLND_RES * result;
DBG_ENTER("mysqlnd_stmt::store_result");
if (!stmt || !conn || !stmt->result) {
DBG_RETURN(NULL);
}
DBG_INF_FMT("stmt=%lu", stmt->stmt_id);
/* be compliant with libmysql - NULL will turn */
if (!stmt->field_count) {
DBG_RETURN(NULL);
}
if (stmt->cursor_exists) {
/* Silently convert buffered to unbuffered, for now */
DBG_RETURN(s->m->use_result(s));
}
/* Nothing to store for UPSERT/LOAD DATA*/
if (GET_CONNECTION_STATE(&conn->state) != CONN_FETCHING_DATA || stmt->state != MYSQLND_STMT_WAITING_USE_OR_STORE)
{
SET_CLIENT_ERROR(conn->error_info, CR_COMMANDS_OUT_OF_SYNC, UNKNOWN_SQLSTATE, mysqlnd_out_of_sync);
DBG_RETURN(NULL);
}
stmt->default_rset_handler = s->m->store_result;
SET_EMPTY_ERROR(stmt->error_info);
SET_EMPTY_ERROR(conn->error_info);
MYSQLND_INC_CONN_STATISTIC(conn->stats, STAT_PS_BUFFERED_SETS);
result = stmt->result;
result->type = MYSQLND_RES_PS_BUF;
/* result->m.row_decoder = php_mysqlnd_rowp_read_binary_protocol; */
result->stored_data = (MYSQLND_RES_BUFFERED *) mysqlnd_result_buffered_zval_init(result, result->field_count, TRUE);
if (!result->stored_data) {
SET_OOM_ERROR(conn->error_info);
DBG_RETURN(NULL);
}
ret = result->m.store_result_fetch_data(conn, result, result->meta, &result->stored_data->row_buffers, TRUE);
result->stored_data->m.fetch_row = mysqlnd_stmt_fetch_row_buffered;
if (PASS == ret) {
if (result->stored_data->type == MYSQLND_BUFFERED_TYPE_ZVAL) {
MYSQLND_RES_BUFFERED_ZVAL * set = (MYSQLND_RES_BUFFERED_ZVAL *) result->stored_data;
if (result->stored_data->row_count) {
/* don't try to allocate more than possible - mnd_XXalloc expects size_t, and it can have narrower range than uint64_t */
if (result->stored_data->row_count * result->meta->field_count * sizeof(zval *) > SIZE_MAX) {
SET_OOM_ERROR(conn->error_info);
DBG_RETURN(NULL);
}
/* if pecalloc is used valgrind barks gcc version 4.3.1 20080507 (prerelease) [gcc-4_3-branch revision 135036] (SUSE Linux) */
set->data = mnd_emalloc((size_t)(result->stored_data->row_count * result->meta->field_count * sizeof(zval)));
if (!set->data) {
SET_OOM_ERROR(conn->error_info);
DBG_RETURN(NULL);
}
memset(set->data, 0, (size_t)(result->stored_data->row_count * result->meta->field_count * sizeof(zval)));
}
/* Position at the first row */
set->data_cursor = set->data;
} else if (result->stored_data->type == MYSQLND_BUFFERED_TYPE_ZVAL) {
/*TODO*/
}
/* libmysql API docs say it should be so for SELECT statements */
UPSERT_STATUS_SET_AFFECTED_ROWS(stmt->upsert_status, stmt->result->stored_data->row_count);
stmt->state = MYSQLND_STMT_USE_OR_STORE_CALLED;
} else {
COPY_CLIENT_ERROR(conn->error_info, result->stored_data->error_info);
stmt->result->m.free_result_contents(stmt->result);
mysqlnd_mempool_destroy(stmt->result->memory_pool);
stmt->result = NULL;
stmt->state = MYSQLND_STMT_PREPARED;
}
DBG_RETURN(result);
}
/* }}} */
/* {{{ mysqlnd_stmt::get_result */
static MYSQLND_RES *
MYSQLND_METHOD(mysqlnd_stmt, get_result)(MYSQLND_STMT * const s)
{
MYSQLND_STMT_DATA * stmt = s? s->data : NULL;
MYSQLND_CONN_DATA * conn = stmt? stmt->conn : NULL;
MYSQLND_RES * result;
DBG_ENTER("mysqlnd_stmt::get_result");
if (!stmt || !conn || !stmt->result) {
DBG_RETURN(NULL);
}
DBG_INF_FMT("stmt=%lu", stmt->stmt_id);
/* be compliant with libmysql - NULL will turn */
if (!stmt->field_count) {
DBG_RETURN(NULL);
}
if (stmt->cursor_exists) {
/* Silently convert buffered to unbuffered, for now */
DBG_RETURN(s->m->use_result(s));
}
/* Nothing to store for UPSERT/LOAD DATA*/
if (GET_CONNECTION_STATE(&conn->state) != CONN_FETCHING_DATA || stmt->state != MYSQLND_STMT_WAITING_USE_OR_STORE) {
SET_CLIENT_ERROR(conn->error_info, CR_COMMANDS_OUT_OF_SYNC, UNKNOWN_SQLSTATE, mysqlnd_out_of_sync);
DBG_RETURN(NULL);
}
SET_EMPTY_ERROR(stmt->error_info);
SET_EMPTY_ERROR(conn->error_info);
MYSQLND_INC_CONN_STATISTIC(conn->stats, STAT_BUFFERED_SETS);
do {
result = conn->m->result_init(stmt->result->field_count);
if (!result) {
SET_OOM_ERROR(conn->error_info);
break;
}
result->meta = stmt->result->meta->m->clone_metadata(result, stmt->result->meta);
if (!result->meta) {
SET_OOM_ERROR(conn->error_info);
break;
}
if ((result = result->m.store_result(result, conn, MYSQLND_STORE_PS | MYSQLND_STORE_NO_COPY))) {
UPSERT_STATUS_SET_AFFECTED_ROWS(stmt->upsert_status, result->stored_data->row_count);
stmt->state = MYSQLND_STMT_PREPARED;
result->type = MYSQLND_RES_PS_BUF;
} else {
COPY_CLIENT_ERROR(stmt->error_info, *conn->error_info);
stmt->state = MYSQLND_STMT_PREPARED;
break;
}
DBG_RETURN(result);
} while (0);
if (result) {
result->m.free_result(result, TRUE);
}
DBG_RETURN(NULL);
}
/* }}} */
/* {{{ mysqlnd_stmt::more_results */
static zend_bool
MYSQLND_METHOD(mysqlnd_stmt, more_results)(const MYSQLND_STMT * s)
{
MYSQLND_STMT_DATA * stmt = s? s->data : NULL;
MYSQLND_CONN_DATA * conn = stmt? stmt->conn : NULL;
DBG_ENTER("mysqlnd_stmt::more_results");
/* (conn->state == CONN_NEXT_RESULT_PENDING) too */
DBG_RETURN((stmt && conn && (conn->m->get_server_status(conn) & SERVER_MORE_RESULTS_EXISTS))? TRUE: FALSE);
}
/* }}} */
/* {{{ mysqlnd_stmt::next_result */
static enum_func_status
MYSQLND_METHOD(mysqlnd_stmt, next_result)(MYSQLND_STMT * s)
{
MYSQLND_STMT_DATA * stmt = s? s->data : NULL;
MYSQLND_CONN_DATA * conn = stmt? stmt->conn : NULL;
DBG_ENTER("mysqlnd_stmt::next_result");
if (!stmt || !conn || !stmt->result) {
DBG_RETURN(FAIL);
}
DBG_INF_FMT("stmt=%lu", stmt->stmt_id);
if (GET_CONNECTION_STATE(&conn->state) != CONN_NEXT_RESULT_PENDING || !(UPSERT_STATUS_GET_SERVER_STATUS(conn->upsert_status) & SERVER_MORE_RESULTS_EXISTS)) {
DBG_RETURN(FAIL);
}
DBG_INF_FMT("server_status=%u cursor=%u", UPSERT_STATUS_GET_SERVER_STATUS(conn->upsert_status), UPSERT_STATUS_GET_SERVER_STATUS(conn->upsert_status) & SERVER_STATUS_CURSOR_EXISTS);
/* Free space for next result */
s->m->free_stmt_result(s);
{
enum_func_status ret = s->m->parse_execute_response(s, MYSQLND_PARSE_EXEC_RESPONSE_IMPLICIT_NEXT_RESULT);
DBG_RETURN(ret);
}
}
/* }}} */
/* {{{ mysqlnd_stmt_skip_metadata */
static enum_func_status
mysqlnd_stmt_skip_metadata(MYSQLND_STMT * s)
{
MYSQLND_STMT_DATA * stmt = s? s->data : NULL;
MYSQLND_CONN_DATA * conn = stmt? stmt->conn : NULL;
/* Follows parameter metadata, we have just to skip it, as libmysql does */
unsigned int i = 0;
enum_func_status ret = FAIL;
MYSQLND_PACKET_RES_FIELD field_packet;
MYSQLND_MEMORY_POOL * pool;
DBG_ENTER("mysqlnd_stmt_skip_metadata");
if (!stmt || !conn) {
DBG_RETURN(FAIL);
}
pool = mysqlnd_mempool_create(MYSQLND_G(mempool_default_size));
if (!pool) {
DBG_RETURN(FAIL);
}
DBG_INF_FMT("stmt=%lu", stmt->stmt_id);
conn->payload_decoder_factory->m.init_result_field_packet(&field_packet);
field_packet.memory_pool = pool;
ret = PASS;
field_packet.skip_parsing = TRUE;
for (;i < stmt->param_count; i++) {
if (FAIL == PACKET_READ(conn, &field_packet)) {
ret = FAIL;
break;
}
}
PACKET_FREE(&field_packet);
mysqlnd_mempool_destroy(pool);
DBG_RETURN(ret);
}
/* }}} */
/* {{{ mysqlnd_stmt_read_prepare_response */
static enum_func_status
mysqlnd_stmt_read_prepare_response(MYSQLND_STMT * s)
{
MYSQLND_STMT_DATA * stmt = s? s->data : NULL;
MYSQLND_CONN_DATA * conn = stmt? stmt->conn : NULL;
MYSQLND_PACKET_PREPARE_RESPONSE prepare_resp;
enum_func_status ret = FAIL;
DBG_ENTER("mysqlnd_stmt_read_prepare_response");
if (!stmt || !conn) {
DBG_RETURN(FAIL);
}
DBG_INF_FMT("stmt=%lu", stmt->stmt_id);
conn->payload_decoder_factory->m.init_prepare_response_packet(&prepare_resp);
if (FAIL == PACKET_READ(conn, &prepare_resp)) {
goto done;
}
if (0xFF == prepare_resp.error_code) {
COPY_CLIENT_ERROR(stmt->error_info, prepare_resp.error_info);
COPY_CLIENT_ERROR(conn->error_info, prepare_resp.error_info);
goto done;
}
ret = PASS;
stmt->stmt_id = prepare_resp.stmt_id;
UPSERT_STATUS_SET_WARNINGS(conn->upsert_status, prepare_resp.warning_count);
UPSERT_STATUS_SET_AFFECTED_ROWS(stmt->upsert_status, 0); /* be like libmysql */
stmt->field_count = conn->field_count = prepare_resp.field_count;
stmt->param_count = prepare_resp.param_count;
done:
PACKET_FREE(&prepare_resp);
DBG_RETURN(ret);
}
/* }}} */
/* {{{ mysqlnd_stmt_prepare_read_eof */
static enum_func_status
mysqlnd_stmt_prepare_read_eof(MYSQLND_STMT * s)
{
MYSQLND_STMT_DATA * stmt = s? s->data : NULL;
MYSQLND_CONN_DATA * conn = stmt? stmt->conn : NULL;
MYSQLND_PACKET_EOF fields_eof;
enum_func_status ret = FAIL;
DBG_ENTER("mysqlnd_stmt_prepare_read_eof");
if (!stmt || !conn) {
DBG_RETURN(FAIL);
}
DBG_INF_FMT("stmt=%lu", stmt->stmt_id);
conn->payload_decoder_factory->m.init_eof_packet(&fields_eof);
if (FAIL == (ret = PACKET_READ(conn, &fields_eof))) {
if (stmt->result) {
stmt->result->m.free_result_contents(stmt->result);
mnd_efree(stmt->result);
/* XXX: This will crash, because we will null also the methods.
But seems it happens in extreme cases or doesn't. Should be fixed by exporting a function
(from mysqlnd_driver.c?) to do the reset.
This bad handling is also in mysqlnd_result.c
*/
memset(stmt, 0, sizeof(MYSQLND_STMT_DATA));
stmt->state = MYSQLND_STMT_INITTED;
}
} else {
UPSERT_STATUS_SET_SERVER_STATUS(stmt->upsert_status, fields_eof.server_status);
UPSERT_STATUS_SET_WARNINGS(stmt->upsert_status, fields_eof.warning_count);
stmt->state = MYSQLND_STMT_PREPARED;
}
DBG_RETURN(ret);
}
/* }}} */
/* {{{ mysqlnd_stmt::prepare */
static enum_func_status
MYSQLND_METHOD(mysqlnd_stmt, prepare)(MYSQLND_STMT * const s, const char * const query, const size_t query_len)
{
MYSQLND_STMT_DATA * stmt = s? s->data : NULL;
MYSQLND_CONN_DATA * conn = stmt? stmt->conn : NULL;
MYSQLND_STMT * s_to_prepare = s;
MYSQLND_STMT_DATA * stmt_to_prepare = stmt;
DBG_ENTER("mysqlnd_stmt::prepare");
if (!stmt || !conn) {
DBG_RETURN(FAIL);
}
DBG_INF_FMT("stmt=%lu", stmt->stmt_id);
DBG_INF_FMT("query=%s", query);
UPSERT_STATUS_SET_AFFECTED_ROWS_TO_ERROR(stmt->upsert_status);
UPSERT_STATUS_SET_AFFECTED_ROWS_TO_ERROR(conn->upsert_status);
SET_EMPTY_ERROR(stmt->error_info);
SET_EMPTY_ERROR(conn->error_info);
if (stmt->state > MYSQLND_STMT_INITTED) {
/* See if we have to clean the wire */
if (stmt->state == MYSQLND_STMT_WAITING_USE_OR_STORE) {
/* Do implicit use_result and then flush the result */
stmt->default_rset_handler = s->m->use_result;
stmt->default_rset_handler(s);
}
/* No 'else' here please :) */
if (stmt->state > MYSQLND_STMT_WAITING_USE_OR_STORE && stmt->result) {
stmt->result->m.skip_result(stmt->result);
}
/*
Create a new test statement, which we will prepare, but if anything
fails, we will scrap it.
*/
s_to_prepare = conn->m->stmt_init(conn);
if (!s_to_prepare) {
goto fail;
}
stmt_to_prepare = s_to_prepare->data;
}
{
enum_func_status ret = FAIL;
const MYSQLND_CSTRING query_string = {query, query_len};
ret = conn->run_command(COM_STMT_PREPARE, conn, query_string);
if (FAIL == ret) {
goto fail;
}
}
if (FAIL == mysqlnd_stmt_read_prepare_response(s_to_prepare)) {
goto fail;
}
if (stmt_to_prepare->param_count) {
if (FAIL == mysqlnd_stmt_skip_metadata(s_to_prepare) ||
FAIL == mysqlnd_stmt_prepare_read_eof(s_to_prepare))
{
goto fail;
}
}
/*
Read metadata only if there is actual result set.
Beware that SHOW statements bypass the PS framework and thus they send
no metadata at prepare.
*/
if (stmt_to_prepare->field_count) {
MYSQLND_RES * result = conn->m->result_init(stmt_to_prepare->field_count);
if (!result) {
SET_OOM_ERROR(conn->error_info);
goto fail;
}
/* Allocate the result now as it is needed for the reading of metadata */
stmt_to_prepare->result = result;
result->conn = conn->m->get_reference(conn);
result->type = MYSQLND_RES_PS_BUF;
if (FAIL == result->m.read_result_metadata(result, conn) ||
FAIL == mysqlnd_stmt_prepare_read_eof(s_to_prepare))
{
goto fail;
}
}
if (stmt_to_prepare != stmt) {
/* swap */
size_t real_size = sizeof(MYSQLND_STMT) + mysqlnd_plugin_count() * sizeof(void *);
char * tmp_swap = mnd_malloc(real_size);
memcpy(tmp_swap, s, real_size);
memcpy(s, s_to_prepare, real_size);
memcpy(s_to_prepare, tmp_swap, real_size);
mnd_free(tmp_swap);
{
MYSQLND_STMT_DATA * tmp_swap_data = stmt_to_prepare;
stmt_to_prepare = stmt;
stmt = tmp_swap_data;
}
s_to_prepare->m->dtor(s_to_prepare, TRUE);
}
stmt->state = MYSQLND_STMT_PREPARED;
DBG_INF("PASS");
DBG_RETURN(PASS);
fail:
if (stmt_to_prepare != stmt && s_to_prepare) {
s_to_prepare->m->dtor(s_to_prepare, TRUE);
}
stmt->state = MYSQLND_STMT_INITTED;
DBG_INF("FAIL");
DBG_RETURN(FAIL);
}
/* }}} */
/* {{{ mysqlnd_stmt_execute_parse_response */
static enum_func_status
mysqlnd_stmt_execute_parse_response(MYSQLND_STMT * const s, enum_mysqlnd_parse_exec_response_type type)
{
MYSQLND_STMT_DATA * stmt = s? s->data : NULL;
MYSQLND_CONN_DATA * conn = stmt? stmt->conn : NULL;
enum_func_status ret;
DBG_ENTER("mysqlnd_stmt_execute_parse_response");
if (!stmt || !conn) {
DBG_RETURN(FAIL);
}
SET_CONNECTION_STATE(&conn->state, CONN_QUERY_SENT);
ret = conn->m->query_read_result_set_header(conn, s);
if (ret == FAIL) {
COPY_CLIENT_ERROR(stmt->error_info, *conn->error_info);
UPSERT_STATUS_RESET(stmt->upsert_status);
UPSERT_STATUS_SET_AFFECTED_ROWS(stmt->upsert_status, UPSERT_STATUS_GET_AFFECTED_ROWS(conn->upsert_status));
if (GET_CONNECTION_STATE(&conn->state) == CONN_QUIT_SENT) {
/* close the statement here, the connection has been closed */
}
stmt->state = MYSQLND_STMT_PREPARED;
stmt->send_types_to_server = 1;
} else {
/*
stmt->send_types_to_server has already been set to 0 in
mysqlnd_stmt_execute_generate_request / mysqlnd_stmt_execute_store_params
In case there is a situation in which binding was done for integer and the
value is > LONG_MAX or < LONG_MIN, there is string conversion and we have
to resend the types. Next execution will also need to resend the type.
*/
SET_EMPTY_ERROR(stmt->error_info);
SET_EMPTY_ERROR(conn->error_info);
UPSERT_STATUS_SET_WARNINGS(stmt->upsert_status, UPSERT_STATUS_GET_WARNINGS(conn->upsert_status));
UPSERT_STATUS_SET_AFFECTED_ROWS(stmt->upsert_status, UPSERT_STATUS_GET_AFFECTED_ROWS(conn->upsert_status));
UPSERT_STATUS_SET_SERVER_STATUS(stmt->upsert_status, UPSERT_STATUS_GET_SERVER_STATUS(conn->upsert_status));
UPSERT_STATUS_SET_LAST_INSERT_ID(stmt->upsert_status, UPSERT_STATUS_GET_LAST_INSERT_ID(conn->upsert_status));
stmt->state = MYSQLND_STMT_EXECUTED;
if (conn->last_query_type == QUERY_UPSERT || conn->last_query_type == QUERY_LOAD_LOCAL) {
DBG_INF("PASS");
DBG_RETURN(PASS);
}
stmt->result->type = MYSQLND_RES_PS_BUF;
if (!stmt->result->conn) {
/*
For SHOW we don't create (bypasses PS in server)
a result set at prepare and thus a connection was missing
*/
stmt->result->conn = conn->m->get_reference(conn);
}
/* Update stmt->field_count as SHOW sets it to 0 at prepare */
stmt->field_count = stmt->result->field_count = conn->field_count;
if (stmt->result->stored_data) {
stmt->result->stored_data->lengths = NULL;
} else if (stmt->result->unbuf) {
stmt->result->unbuf->lengths = NULL;
}
if (stmt->field_count) {
stmt->state = MYSQLND_STMT_WAITING_USE_OR_STORE;
/*
We need to set this because the user might not call
use_result() or store_result() and we should be able to scrap the
data on the line, if he just decides to close the statement.
*/
DBG_INF_FMT("server_status=%u cursor=%u", UPSERT_STATUS_GET_SERVER_STATUS(stmt->upsert_status),
UPSERT_STATUS_GET_SERVER_STATUS(stmt->upsert_status) & SERVER_STATUS_CURSOR_EXISTS);
if (UPSERT_STATUS_GET_SERVER_STATUS(stmt->upsert_status) & SERVER_STATUS_CURSOR_EXISTS) {
DBG_INF("cursor exists");
stmt->cursor_exists = TRUE;
SET_CONNECTION_STATE(&conn->state, CONN_READY);
/* Only cursor read */
stmt->default_rset_handler = s->m->use_result;
DBG_INF("use_result");
} else if (stmt->flags & CURSOR_TYPE_READ_ONLY) {
DBG_INF("asked for cursor but got none");
/*
We have asked for CURSOR but got no cursor, because the condition
above is not fulfilled. Then...
This is a single-row result set, a result set with no rows, EXPLAIN,
SHOW VARIABLES, or some other command which either a) bypasses the
cursors framework in the server and writes rows directly to the
network or b) is more efficient if all (few) result set rows are
precached on client and server's resources are freed.
*/
/* preferred is buffered read */
stmt->default_rset_handler = s->m->store_result;
DBG_INF("store_result");
} else {
DBG_INF("no cursor");
/* preferred is unbuffered read */
stmt->default_rset_handler = s->m->use_result;
DBG_INF("use_result");
}
}
}
#ifndef MYSQLND_DONT_SKIP_OUT_PARAMS_RESULTSET
if (UPSERT_STATUS_GET_SERVER_STATUS(stmt->upsert_status) & SERVER_PS_OUT_PARAMS) {
s->m->free_stmt_content(s);
DBG_INF("PS OUT Variable RSet, skipping");
/* OUT params result set. Skip for now to retain compatibility */
ret = mysqlnd_stmt_execute_parse_response(s, MYSQLND_PARSE_EXEC_RESPONSE_IMPLICIT_OUT_VARIABLES);
}
#endif
DBG_INF_FMT("server_status=%u cursor=%u", UPSERT_STATUS_GET_SERVER_STATUS(stmt->upsert_status), UPSERT_STATUS_GET_SERVER_STATUS(stmt->upsert_status) & SERVER_STATUS_CURSOR_EXISTS);
if (ret == PASS && conn->last_query_type == QUERY_UPSERT && UPSERT_STATUS_GET_AFFECTED_ROWS(stmt->upsert_status)) {
MYSQLND_INC_CONN_STATISTIC_W_VALUE(conn->stats, STAT_ROWS_AFFECTED_PS, UPSERT_STATUS_GET_AFFECTED_ROWS(stmt->upsert_status));
}
DBG_INF(ret == PASS? "PASS":"FAIL");
DBG_RETURN(ret);
}
/* }}} */
/* {{{ mysqlnd_stmt::execute */
static enum_func_status
MYSQLND_METHOD(mysqlnd_stmt, execute)(MYSQLND_STMT * const s)
{
DBG_ENTER("mysqlnd_stmt::execute");
if (FAIL == s->m->send_execute(s, MYSQLND_SEND_EXECUTE_IMPLICIT, NULL, NULL) ||
FAIL == s->m->parse_execute_response(s, MYSQLND_PARSE_EXEC_RESPONSE_IMPLICIT))
{
DBG_RETURN(FAIL);
}
DBG_RETURN(PASS);
}
/* }}} */
/* {{{ mysqlnd_stmt::send_execute */
static enum_func_status
MYSQLND_METHOD(mysqlnd_stmt, send_execute)(MYSQLND_STMT * const s, const enum_mysqlnd_send_execute_type type, zval * read_cb, zval * err_cb)
{
MYSQLND_STMT_DATA * stmt = s? s->data : NULL;
MYSQLND_CONN_DATA * conn = stmt? stmt->conn : NULL;
enum_func_status ret;
zend_uchar *request = NULL;
size_t request_len;
zend_bool free_request;
DBG_ENTER("mysqlnd_stmt::send_execute");
if (!stmt || !conn) {
DBG_RETURN(FAIL);
}
DBG_INF_FMT("stmt=%lu", stmt->stmt_id);
UPSERT_STATUS_SET_AFFECTED_ROWS_TO_ERROR(stmt->upsert_status);
UPSERT_STATUS_SET_AFFECTED_ROWS_TO_ERROR(conn->upsert_status);
if (stmt->result && stmt->state >= MYSQLND_STMT_PREPARED && stmt->field_count) {
s->m->flush(s);
/*
Executed, but the user hasn't started to fetch
This will clean also the metadata, but after the EXECUTE call we will
have it again.
*/
stmt->result->m.free_result_buffers(stmt->result);
stmt->state = MYSQLND_STMT_PREPARED;
} else if (stmt->state < MYSQLND_STMT_PREPARED) {
/* Only initted - error */
SET_CLIENT_ERROR(stmt->error_info, CR_COMMANDS_OUT_OF_SYNC, UNKNOWN_SQLSTATE, mysqlnd_out_of_sync);
DBG_INF("FAIL");
DBG_RETURN(FAIL);
}
if (stmt->param_count) {
unsigned int i, not_bound = 0;
if (!stmt->param_bind) {
SET_CLIENT_ERROR(stmt->error_info, CR_PARAMS_NOT_BOUND, UNKNOWN_SQLSTATE, "No data supplied for parameters in prepared statement");
DBG_INF("FAIL");
DBG_RETURN(FAIL);
}
for (i = 0; i < stmt->param_count; i++) {
if (Z_ISUNDEF(stmt->param_bind[i].zv)) {
not_bound++;
}
}
if (not_bound) {
char * msg;
mnd_sprintf(&msg, 0, "No data supplied for %u parameter%s in prepared statement",
not_bound, not_bound>1 ?"s":"");
SET_CLIENT_ERROR(stmt->error_info, CR_PARAMS_NOT_BOUND, UNKNOWN_SQLSTATE, msg);
if (msg) {
mnd_sprintf_free(msg);
}
DBG_INF("FAIL");
DBG_RETURN(FAIL);
}
}
ret = s->m->generate_execute_request(s, &request, &request_len, &free_request);
if (ret == PASS) {
const MYSQLND_CSTRING payload = {(const char*) request, request_len};
ret = conn->run_command(COM_STMT_EXECUTE, conn, payload);
} else {
SET_CLIENT_ERROR(stmt->error_info, CR_UNKNOWN_ERROR, UNKNOWN_SQLSTATE, "Couldn't generate the request. Possibly OOM.");
}
if (free_request) {
mnd_efree(request);
}
if (ret == FAIL) {
COPY_CLIENT_ERROR(stmt->error_info, *conn->error_info);
DBG_INF("FAIL");
DBG_RETURN(FAIL);
}
stmt->execute_count++;
DBG_RETURN(PASS);
}
/* }}} */
/* {{{ mysqlnd_stmt_fetch_row_buffered */
enum_func_status
mysqlnd_stmt_fetch_row_buffered(MYSQLND_RES * result, void * param, const unsigned int flags, zend_bool * fetched_anything)
{
MYSQLND_STMT * s = (MYSQLND_STMT *) param;
MYSQLND_STMT_DATA * stmt = s? s->data : NULL;
const MYSQLND_RES_METADATA * const meta = result->meta;
unsigned int field_count = meta->field_count;
DBG_ENTER("mysqlnd_stmt_fetch_row_buffered");
*fetched_anything = FALSE;
DBG_INF_FMT("stmt=%lu", stmt != NULL ? stmt->stmt_id : 0L);
/* If we haven't read everything */
if (result->stored_data->type == MYSQLND_BUFFERED_TYPE_ZVAL) {
MYSQLND_RES_BUFFERED_ZVAL * set = (MYSQLND_RES_BUFFERED_ZVAL *) result->stored_data;
if (set->data_cursor &&
(set->data_cursor - set->data) < (result->stored_data->row_count * field_count))
{
/* The user could have skipped binding - don't crash*/
if (stmt->result_bind) {
unsigned int i;
zval *current_row = set->data_cursor;
if (Z_ISUNDEF(current_row[0])) {
uint64_t row_num = (set->data_cursor - set->data) / field_count;
enum_func_status rc = result->stored_data->m.row_decoder(&result->stored_data->row_buffers[row_num],
current_row,
meta->field_count,
meta->fields,
result->conn->options->int_and_float_native,
result->conn->stats);
if (PASS != rc) {
DBG_RETURN(FAIL);
}
result->stored_data->initialized_rows++;
if (stmt->update_max_length) {
for (i = 0; i < result->field_count; i++) {
/*
NULL fields are 0 length, 0 is not more than 0
String of zero size, definitely can't be the next max_length.
Thus for NULL and zero-length we are quite efficient.
*/
if (Z_TYPE(current_row[i]) == IS_STRING) {
zend_ulong len = Z_STRLEN(current_row[i]);
if (meta->fields[i].max_length < len) {
meta->fields[i].max_length = len;
}
}
}
}
}
for (i = 0; i < result->field_count; i++) {
zval *result = &stmt->result_bind[i].zv;
ZVAL_DEREF(result);
/* Clean what we copied last time */
zval_ptr_dtor(result);
/* copy the type */
if (stmt->result_bind[i].bound == TRUE) {
DBG_INF_FMT("i=%u type=%u", i, Z_TYPE(current_row[i]));
ZVAL_COPY(result, ¤t_row[i]);
}
}
}
set->data_cursor += field_count;
*fetched_anything = TRUE;
/* buffered result sets don't have a connection */
MYSQLND_INC_GLOBAL_STATISTIC(STAT_ROWS_FETCHED_FROM_CLIENT_PS_BUF);
DBG_INF("row fetched");
} else {
set->data_cursor = NULL;
DBG_INF("no more data");
}
} else if (result->stored_data->type == MYSQLND_BUFFERED_TYPE_C) {
/*TODO*/
}
DBG_INF("PASS");
DBG_RETURN(PASS);
}
/* }}} */
/* {{{ mysqlnd_stmt_fetch_row_unbuffered */
enum_func_status
mysqlnd_stmt_fetch_row_unbuffered(MYSQLND_RES * result, void * param, const unsigned int flags, zend_bool * fetched_anything)
{
enum_func_status ret;
MYSQLND_STMT * s = (MYSQLND_STMT *) param;
MYSQLND_STMT_DATA * stmt = s? s->data : NULL;
MYSQLND_PACKET_ROW * row_packet;
MYSQLND_CONN_DATA * conn = result->conn;
const MYSQLND_RES_METADATA * const meta = result->meta;
DBG_ENTER("mysqlnd_stmt_fetch_row_unbuffered");
*fetched_anything = FALSE;
if (result->unbuf->eof_reached) {
/* No more rows obviously */
DBG_INF("EOF already reached");
DBG_RETURN(PASS);
}
if (GET_CONNECTION_STATE(&conn->state) != CONN_FETCHING_DATA) {
SET_CLIENT_ERROR(conn->error_info, CR_COMMANDS_OUT_OF_SYNC, UNKNOWN_SQLSTATE, mysqlnd_out_of_sync);
DBG_ERR("command out of sync");
DBG_RETURN(FAIL);
}
if (!(row_packet = result->unbuf->row_packet)) {
DBG_RETURN(FAIL);
}
/* Let the row packet fill our buffer and skip additional malloc + memcpy */
row_packet->skip_extraction = stmt && stmt->result_bind? FALSE:TRUE;
/*
If we skip rows (stmt == NULL || stmt->result_bind == NULL) we have to
result->unbuf->m.free_last_data() before it. The function returns always true.
*/
if (PASS == (ret = PACKET_READ(conn, row_packet)) && !row_packet->eof) {
unsigned int i, field_count = result->field_count;
if (!row_packet->skip_extraction) {
result->unbuf->m.free_last_data(result->unbuf, conn->stats);
result->unbuf->last_row_data = row_packet->fields;
result->unbuf->last_row_buffer = row_packet->row_buffer;
row_packet->fields = NULL;
row_packet->row_buffer.ptr = NULL;
if (PASS != result->unbuf->m.row_decoder(&result->unbuf->last_row_buffer,
result->unbuf->last_row_data,
row_packet->field_count,
row_packet->fields_metadata,
conn->options->int_and_float_native,
conn->stats))
{
DBG_RETURN(FAIL);
}
for (i = 0; i < field_count; i++) {
if (stmt->result_bind[i].bound == TRUE) {
zval *data = &result->unbuf->last_row_data[i];
zval *result = &stmt->result_bind[i].zv;
if (Z_TYPE_P(data) == IS_STRING && (meta->fields[i].max_length < (zend_ulong) Z_STRLEN_P(data))){
meta->fields[i].max_length = Z_STRLEN_P(data);
}
ZVAL_DEREF(result);
zval_ptr_dtor(result);
ZVAL_COPY_VALUE(result, data);
/* copied data, thus also the ownership. Thus null data */
ZVAL_NULL(data);
}
}
MYSQLND_INC_CONN_STATISTIC(conn->stats, STAT_ROWS_FETCHED_FROM_CLIENT_PS_UNBUF);
} else {
DBG_INF("skipping extraction");
/*
Data has been allocated and usually result->unbuf->m.free_last_data()
frees it but we can't call this function as it will cause problems with
the bound variables. Thus we need to do part of what it does or Zend will
report leaks.
*/
row_packet->result_set_memory_pool->free_chunk(
row_packet->result_set_memory_pool, row_packet->row_buffer.ptr);
row_packet->row_buffer.ptr = NULL;
}
result->unbuf->row_count++;
*fetched_anything = TRUE;
} else if (ret == FAIL) {
if (row_packet->error_info.error_no) {
COPY_CLIENT_ERROR(conn->error_info, row_packet->error_info);
COPY_CLIENT_ERROR(stmt->error_info, row_packet->error_info);
}
SET_CONNECTION_STATE(&conn->state, CONN_READY);
result->unbuf->eof_reached = TRUE; /* so next time we won't get an error */
} else if (row_packet->eof) {
DBG_INF("EOF");
/* Mark the connection as usable again */
result->unbuf->eof_reached = TRUE;
UPSERT_STATUS_RESET(conn->upsert_status);
UPSERT_STATUS_SET_WARNINGS(conn->upsert_status, row_packet->warning_count);
UPSERT_STATUS_SET_SERVER_STATUS(conn->upsert_status, row_packet->server_status);
/*
result->row_packet will be cleaned when
destroying the result object
*/
if (UPSERT_STATUS_GET_SERVER_STATUS(conn->upsert_status) & SERVER_MORE_RESULTS_EXISTS) {
SET_CONNECTION_STATE(&conn->state, CONN_NEXT_RESULT_PENDING);
} else {
SET_CONNECTION_STATE(&conn->state, CONN_READY);
}
}
DBG_INF_FMT("ret=%s fetched_anything=%u", ret == PASS? "PASS":"FAIL", *fetched_anything);
DBG_RETURN(ret);
}
/* }}} */
/* {{{ mysqlnd_stmt::use_result */
static MYSQLND_RES *
MYSQLND_METHOD(mysqlnd_stmt, use_result)(MYSQLND_STMT * s)
{
MYSQLND_STMT_DATA * stmt = s? s->data : NULL;
MYSQLND_CONN_DATA * conn = stmt? stmt->conn : NULL;
MYSQLND_RES * result;
DBG_ENTER("mysqlnd_stmt::use_result");
if (!stmt || !conn || !stmt->result) {
DBG_RETURN(NULL);
}
DBG_INF_FMT("stmt=%lu", stmt->stmt_id);
if (!stmt->field_count ||
(!stmt->cursor_exists && GET_CONNECTION_STATE(&conn->state) != CONN_FETCHING_DATA) ||
(stmt->cursor_exists && GET_CONNECTION_STATE(&conn->state) != CONN_READY) ||
(stmt->state != MYSQLND_STMT_WAITING_USE_OR_STORE))
{
SET_CLIENT_ERROR(conn->error_info, CR_COMMANDS_OUT_OF_SYNC, UNKNOWN_SQLSTATE, mysqlnd_out_of_sync);
DBG_ERR("command out of sync");
DBG_RETURN(NULL);
}
SET_EMPTY_ERROR(stmt->error_info);
MYSQLND_INC_CONN_STATISTIC(conn->stats, STAT_PS_UNBUFFERED_SETS);
result = stmt->result;
result->m.use_result(stmt->result, TRUE);
result->unbuf->m.fetch_row = stmt->cursor_exists? mysqlnd_fetch_stmt_row_cursor:
mysqlnd_stmt_fetch_row_unbuffered;
stmt->state = MYSQLND_STMT_USE_OR_STORE_CALLED;
DBG_INF_FMT("%p", result);
DBG_RETURN(result);
}
/* }}} */
/* {{{ mysqlnd_fetch_row_cursor */
enum_func_status
mysqlnd_fetch_stmt_row_cursor(MYSQLND_RES * result, void * param, const unsigned int flags, zend_bool * fetched_anything)
{
enum_func_status ret;
MYSQLND_STMT * s = (MYSQLND_STMT *) param;
MYSQLND_STMT_DATA * stmt = s? s->data : NULL;
MYSQLND_CONN_DATA * conn = stmt? stmt->conn : NULL;
zend_uchar buf[MYSQLND_STMT_ID_LENGTH /* statement id */ + 4 /* number of rows to fetch */];
MYSQLND_PACKET_ROW * row_packet;
DBG_ENTER("mysqlnd_fetch_stmt_row_cursor");
if (!stmt || !stmt->conn || !result || !result->conn || !result->unbuf) {
DBG_ERR("no statement");
DBG_RETURN(FAIL);
}
DBG_INF_FMT("stmt=%lu flags=%u", stmt->stmt_id, flags);
if (stmt->state < MYSQLND_STMT_USER_FETCHING) {
/* Only initted - error */
SET_CLIENT_ERROR(conn->error_info, CR_COMMANDS_OUT_OF_SYNC, UNKNOWN_SQLSTATE, mysqlnd_out_of_sync);
DBG_ERR("command out of sync");
DBG_RETURN(FAIL);
}
if (!(row_packet = result->unbuf->row_packet)) {
DBG_RETURN(FAIL);
}
SET_EMPTY_ERROR(stmt->error_info);
SET_EMPTY_ERROR(conn->error_info);
int4store(buf, stmt->stmt_id);
int4store(buf + MYSQLND_STMT_ID_LENGTH, 1); /* for now fetch only one row */
{
const MYSQLND_CSTRING payload = {(const char*) buf, sizeof(buf)};
ret = conn->run_command(COM_STMT_FETCH, conn, payload);
if (ret == FAIL) {
COPY_CLIENT_ERROR(stmt->error_info, *conn->error_info);
DBG_RETURN(FAIL);
}
}