From: Victor Stinner <victor.stinner@gmail.com>
Date: Tue, 16 Aug 2016 13:19:09 +0000 (+0200)
Subject: Issue #27776: _PyRandom_Init() doesn't call PyErr_CheckSignals() anymore
X-Git-Tag: v3.6.0b1~706
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=cecdd9634b8ca3f0b260681d75cc1fd00a350efd;p=thirdparty%2FPython%2Fcpython.git

Issue #27776: _PyRandom_Init() doesn't call PyErr_CheckSignals() anymore

Modify py_getrandom() to not call PyErr_CheckSignals() if raise is zero.
_PyRandom_Init() is called very early in the Python initialization, so it's
safer to not call PyErr_CheckSignals().
---

diff --git a/Python/random.c b/Python/random.c
index 7d37fe95753e..4d0eabc001c9 100644
--- a/Python/random.c
+++ b/Python/random.c
@@ -191,10 +191,13 @@ py_getrandom(void *buffer, Py_ssize_t size, int raise)
             }
 
             if (errno == EINTR) {
-                if (PyErr_CheckSignals()) {
-                    return -1;
+                if (raise) {
+                    if (PyErr_CheckSignals()) {
+                        return -1;
+                    }
                 }
-                /* retry getrandom() */
+
+                /* retry getrandom() if it was interrupted by a signal */
                 continue;
             }