mirror of https://github.com/python/cpython
Introduce Py_SOCKET_FD_CAN_BE_GE_FD_SETSIZE.
Proposed by Tim Peters.
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@ -377,8 +377,10 @@ check_socket_and_wait_for_timeout(PySocketSockObject *s, int writing)
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return SOCKET_HAS_BEEN_CLOSED;
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/* Guard against socket too large for select*/
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#ifndef Py_SOCKET_FD_CAN_BE_GE_FD_SETSIZE
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if (s->sock_fd >= FD_SETSIZE)
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return SOCKET_INVALID;
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#endif
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/* Construct the arguments to select */
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tv.tv_sec = (int)s->sock_timeout;
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@ -396,7 +396,14 @@ static int taskwindow;
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static PyTypeObject sock_type;
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/* Can we call select() with this socket without a buffer overrun? */
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#ifdef Py_SOCKET_FD_CAN_BE_GE_FD_SETSIZE
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/* Platform can select file descriptors beyond FD_SETSIZE */
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#define IS_SELECTABLE(s) 1
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#else
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/* POSIX says selecting file descriptors beyond FD_SETSIZE
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has undefined behaviour. */
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#define IS_SELECTABLE(s) ((s)->sock_fd < FD_SETSIZE)
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#endif
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static PyObject*
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select_error(void)
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@ -572,4 +572,9 @@ Py_NO_ENABLE_SHARED to find out. Also support MS_NO_COREDLL for b/w compat */
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/* Define if you have the thread library (-lthread). */
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/* #undef HAVE_LIBTHREAD */
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/* WinSock does not use a bitmask in select, and uses
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socket handles greater than FD_SETSIZE */
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#define Py_SOCKET_FD_CAN_BE_GE_FD_SETSIZE
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#endif /* !Py_CONFIG_H */
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