Implement #43269: Retrieve FD_SETSIZE within PHP

To give userland developers who work with large numbers of file descriptors
the opportunity to avoid problems on systems which may not support that
many descriptors (e.g. when calling socket_select()), we make FD_SETSIZE
available in PHP as PHP_FD_SETSIZE.

diff --git a/main/main.c b/main/main.c
index 60b8e5911676edcc486554d1fec1fbe01e08bc20..848f24fc5ab5c247de0a4cc7d2436ec8454237e8 100644 (file)
--- a/main/main.c
+++ b/main/main.c
@@ -2177,6 +2177,7 @@ int php_module_startup(sapi_module_struct *sf, zend_module_entry *additional_mod
        REGISTER_MAIN_LONG_CONSTANT("PHP_INT_MAX", ZEND_LONG_MAX, CONST_PERSISTENT | CONST_CS);
        REGISTER_MAIN_LONG_CONSTANT("PHP_INT_MIN", ZEND_LONG_MIN, CONST_PERSISTENT | CONST_CS);
        REGISTER_MAIN_LONG_CONSTANT("PHP_INT_SIZE", SIZEOF_ZEND_LONG, CONST_PERSISTENT | CONST_CS);
+       REGISTER_MAIN_LONG_CONSTANT("PHP_FD_SETSIZE", FD_SETSIZE, CONST_PERSISTENT | CONST_CS);
 
 #ifdef PHP_WIN32
        REGISTER_MAIN_LONG_CONSTANT("PHP_WINDOWS_VERSION_MAJOR",      EG(windows_version_info).dwMajorVersion, CONST_PERSISTENT | CONST_CS);