/*
* Sets current thread as owning thread of a context by assigning the
* thread-private info to the context. If the current thread doesn't have
* private JSThread info, create one.
*/
JSBool
js_SetContextThread(JSContext *cx)
{
JSThread *thread = js_GetCurrentThread(cx->runtime);
if (!thread) {
JS_ReportOutOfMemory(cx);
return JS_FALSE;
}
cx->thread = thread;
JS_REMOVE_LINK(&cx->threadLinks);
JS_APPEND_LINK(&cx->threadLinks, &thread->contextList);
return JS_TRUE;
}
/* Remove the owning thread info of a context. */
void
js_ClearContextThread(JSContext *cx)
{
/*
* If cx is associated with a thread, this must be called only from that
* thread. If not, this is a harmless no-op.
*/
JS_ASSERT(cx->thread == js_GetCurrentThread(cx->runtime) || !cx->thread);
JS_REMOVE_AND_INIT_LINK(&cx->threadLinks);
#ifdef DEBUG
if (JS_CLIST_IS_EMPTY(&cx->thread->contextList)) {
memset(cx->thread->gcFreeLists, JS_FREE_PATTERN,
sizeof(cx->thread->gcFreeLists));
}
#endif
cx->thread = NULL;
}
/*
* Sets current thread as owning thread of a context by assigning the
* thread-private info to the context. If the current thread doesn't have
* private JSThread info, create one.
*/
JSBool
js_SetContextThread(JSContext *cx)
{
JSThread *thread = js_GetCurrentThread(cx->runtime);
if (!thread) {
JS_ReportOutOfMemory(cx);
return JS_FALSE;
}
/*
* Clear gcFreeLists on each transition from 0 to 1 context active on the
* current thread. See bug 351602.
*/
if (JS_CLIST_IS_EMPTY(&thread->contextList))
memset(thread->gcFreeLists, 0, sizeof(thread->gcFreeLists));
/* Assert that the previous cx->thread called JS_ClearContextThread(). */
JS_ASSERT(!cx->thread || cx->thread == thread);
if (!cx->thread)
JS_APPEND_LINK(&cx->threadLinks, &thread->contextList);
cx->thread = thread;
return JS_TRUE;
}