andrey Thu, 01 Apr 2010 11:50:24 +0000 Revision: http://svn.php.net/viewvc?view=revision&revision=297271
Log: Fixed bug #51347 mysqli_close / connection memory leak Streams API registers every stream as resource, which lands then in EG(regular_list), however doesn't clean that when the stream is closed. At the end this is a para-leak. At the end of the script all memory is cleaned, however this is a problem for long runnig scripts that open connections. For every opened and closed connection about 150 Bytes on 32bit and 250 Bytes on 64bit will be "lost", according to memory_get_usage(). Bug: http://bugs.php.net/51347 (Open) mysqli_close / connection memory leak Changed paths: U php/php-src/branches/PHP_5_3/NEWS U php/php-src/branches/PHP_5_3/ext/mysqlnd/mysqlnd_net.c U php/php-src/trunk/ext/mysqlnd/mysqlnd_net.c Modified: php/php-src/branches/PHP_5_3/NEWS =================================================================== --- php/php-src/branches/PHP_5_3/NEWS 2010-04-01 11:32:44 UTC (rev 297270) +++ php/php-src/branches/PHP_5_3/NEWS 2010-04-01 11:50:24 UTC (rev 297271) @@ -13,6 +13,7 @@ - Fixed bug #51393 (DateTime::createFromFormat() fails if format string contains timezone). (Adam) +- Fixed bug #51347 (mysqli_close / connection memory leak). (Andrey, Johannes) - Fixed bug #51338 (URL-Rewriter is still enabled if use_only_cookies is on). (Ilia, j dot jeising at gmail dot com) - Fixed bug #51269 (zlib.output_compression Overwrites Vary Header). (Adam) Modified: php/php-src/branches/PHP_5_3/ext/mysqlnd/mysqlnd_net.c =================================================================== --- php/php-src/branches/PHP_5_3/ext/mysqlnd/mysqlnd_net.c 2010-04-01 11:32:44 UTC (rev 297270) +++ php/php-src/branches/PHP_5_3/ext/mysqlnd/mysqlnd_net.c 2010-04-01 11:50:24 UTC (rev 297271) @@ -703,6 +703,14 @@ mnd_pefree(net->cmd_buffer.buffer, pers); net->cmd_buffer.buffer = NULL; } + /* + Streams are not meant for C extensions! Thus we need a hack. Every connected stream will + be registered as resource (in EG(regular_list). So far, so good. However, it won't be + unregistered till the script ends. So, we need to take care of that. + */ + net->stream->in_free = 1; + zend_hash_index_del(&EG(regular_list), net->stream->rsrc_id); + net->stream->in_free = 0; if (net->stream) { DBG_INF_FMT("Freeing stream. abstract=%p", net->stream->abstract); Modified: php/php-src/trunk/ext/mysqlnd/mysqlnd_net.c =================================================================== --- php/php-src/trunk/ext/mysqlnd/mysqlnd_net.c 2010-04-01 11:32:44 UTC (rev 297270) +++ php/php-src/trunk/ext/mysqlnd/mysqlnd_net.c 2010-04-01 11:50:24 UTC (rev 297271) @@ -703,6 +703,14 @@ mnd_pefree(net->cmd_buffer.buffer, pers); net->cmd_buffer.buffer = NULL; } + /* + Streams are not meant for C extensions! Thus we need a hack. Every connected stream will + be registered as resource (in EG(regular_list). So far, so good. However, it won't be + unregistered till the script ends. So, we need to take care of that. + */ + net->stream->in_free = 1; + zend_hash_index_del(&EG(regular_list), net->stream->rsrc_id); + net->stream->in_free = 0; if (net->stream) { DBG_INF_FMT("Freeing stream. abstract=%p", net->stream->abstract);
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