[patch] fix fork() failing on EAGAIN in Python

python-2.5.2-EAGAIN.patch (text/plain), 539 bytes, created by Alex Volkov on 2008-12-13 16:34:10 UTC

--- Modules/posixmodule.c.ori	Sat Jun  7 04:10:54 2008
+++ Modules/posixmodule.c	Sat Jun  7 05:05:29 2008
@@ -3467,7 +3467,13 @@
 static PyObject *
 posix_fork(PyObject *self, PyObject *noargs)
 {
-	int pid = fork();
+        unsigned int forksleep = 1;
+        int pid;
+        while ((pid = fork ()) < 0 && errno == EAGAIN && forksleep < 32)
+        {
+                if (sleep (forksleep)) break; /* break on signals, e.g. ^C */
+                forksleep <<= 1;
+        }
 	if (pid == -1)
 		return posix_error();
 	if (pid == 0)