From: Guido van Rossum <guido@python.org>
Date: Tue, 8 Feb 2005 15:01:35 +0000 (+0000)
Subject: Backport 2.39:
X-Git-Tag: v2.4.1c1~52
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1a37c4c6b10000e3f7685add1747bb1629908ed7;p=thirdparty%2FPython%2Fcpython.git

Backport 2.39:
Close the discussion in SF bug 1069160.
---

diff --git a/Python/pystate.c b/Python/pystate.c
index 182560748fe4..255cf7e86e82 100644
--- a/Python/pystate.c
+++ b/Python/pystate.c
@@ -320,7 +320,7 @@ PyThreadState_GetDict(void)
 
 /* Asynchronously raise an exception in a thread.
    Requested by Just van Rossum and Alex Martelli.
-   To prevent naive misuse, you must write your own exception
+   To prevent naive misuse, you must write your own extension
    to call this.  Must be called with the GIL held.
    Returns the number of tstates modified; if it returns a number
    greater than one, you're in trouble, and you should call it again
@@ -332,6 +332,7 @@ PyThreadState_SetAsyncExc(long id, PyObject *exc) {
 	PyInterpreterState *interp = tstate->interp;
 	PyThreadState *p;
 	int count = 0;
+	HEAD_LOCK();
 	for (p = interp->tstate_head; p != NULL; p = p->next) {
 		if (p->thread_id != id)
 			continue;
@@ -340,6 +341,7 @@ PyThreadState_SetAsyncExc(long id, PyObject *exc) {
 		p->async_exc = exc;
 		count += 1;
 	}
+	HEAD_UNLOCK();
 	return count;
 }