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(Merge 3.4) Issue #22585: os.urandom() now releases the GIL when the

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getentropy() is used (OpenBSD 5.6+).
This commit is contained in:
Victor Stinner 2015-03-30 11:19:07 +02:00
commit 81c6df5c0f
1 changed files with 14 additions and 6 deletions
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20
Python/random.c
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@ -81,16 +81,24 @@ py_getentropy(unsigned char *buffer, Py_ssize_t size, int fatal)
{ {
while (size > 0) { while (size > 0) {
Py_ssize_t len = Py_MIN(size, 256); Py_ssize_t len = Py_MIN(size, 256);
int res = getentropy(buffer, len); int res;
if (res < 0) {
if (fatal) { if (!fatal) {
Py_FatalError("getentropy() failed"); Py_BEGIN_ALLOW_THREADS
} res = getentropy(buffer, len);
else { Py_END_ALLOW_THREADS
if (res < 0) {
PyErr_SetFromErrno(PyExc_OSError); PyErr_SetFromErrno(PyExc_OSError);
return -1; return -1;
} }
} }
else {
res = getentropy(buffer, len);
if (res < 0)
Py_FatalError("getentropy() failed");
}
buffer += len; buffer += len;
size -= len; size -= len;
} }