SF bug 110843: Low FD_SETSIZE limit on Win32 (PR#41). Boosted to 512.

This commit is contained in:
Tim Peters 2000-12-12 01:18:41 +00:00
parent f377d57328
commit d92dfe0ef5
2 changed files with 18 additions and 1 deletions

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@ -27,6 +27,14 @@ Core language, builtins, and interpreter
fit in an int. In 1.6 and earlier, a negative long formatted
via %u raised an error if it was too big to fit in an int.
Windows changes
- select module: By default under Windows, a select() call
can specify no more than 64 sockets. Python now boosts
this Microsoft default to 512. If you need even more than
that, see the MS docs (you'll need to #define FD_SETSIZE
and recompile Python from source).
What's New in Python 2.0?
=========================

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@ -1,4 +1,3 @@
/* select - Module containing unix select(2) call.
Under Unix, the file descriptors are small integers.
Under Win32, select only exists for sockets, and sockets may
@ -9,6 +8,16 @@
#include "Python.h"
/* Windows #defines FD_SETSIZE to 64 if FD_SETSIZE isn't already defined.
64 is too small (too many people have bumped into that limit).
Here we boost it.
Users who want even more than the boosted limit should #define
FD_SETSIZE higher before this; e.g., via compiler /D switch.
*/
#if defined(MS_WINDOWS) && !defined(FD_SETSIZE)
#define FD_SETSIZE 512
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif