Bug #70060 [NEW]: write events should be disabled in curl_multi_select

From: xiaoyjy at mail dot com Operating system: Linux PHP version: 5.6.11 Package: HTTP related Bug Type: Bug Bug description:write events should be disabled in curl_multi_select Description: ------------ As a clent fd, writefds are always available, the select function will always return immediately if the writefds is enabled. but we only care about read events in this case. PHP_FUNCTION(curl_multi_select) { zval *z_mh; php_curlm *mh; fd_set readfds; fd_set writefds; fd_set exceptfds; int maxfd; double timeout = 1.0; struct timeval to; if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r|d", &z_mh, &timeout) == FAILURE) { return; } ZEND_FETCH_RESOURCE(mh, php_curlm *, &z_mh, -1, le_curl_multi_handle_name, le_curl_multi_handle); _make_timeval_struct(&to, timeout); FD_ZERO(&readfds); FD_ZERO(&writefds); FD_ZERO(&exceptfds); curl_multi_fdset(mh->multi, &readfds, &writefds, &exceptfds, &maxfd); if (maxfd == -1) { RETURN_LONG(-1); } RETURN_LONG(select(maxfd + 1, &readfds, &writefds, &exceptfds, &to)); } -- Edit bug report at https://bugs.php.net/bug.php?id=70060&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=70060&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=70060&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=70060&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=70060&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=70060&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=70060&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=70060&r=needscript Try newer version: https://bugs.php.net/fix.php?id=70060&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=70060&r=support Expected behavior: https://bugs.php.net/fix.php?id=70060&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=70060&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=70060&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=70060&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=70060&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=70060&r=dst IIS Stability: https://bugs.php.net/fix.php?id=70060&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=70060&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=70060&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=70060&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=70060&r=mysqlcfg