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msvcr110: Make sure we don't hang in _Condition_variable::notify* functions.

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Signed-off-by: Piotr Caban <piotr@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Piotr Caban 2022-03-16 14:38:02 +01:00 committed by Alexandre Julliard
parent 13064f9914
commit 746df92dba
1 changed files with 19 additions and 12 deletions
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31
dlls/msvcrt/concurrency.c
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@ -261,6 +261,7 @@ typedef struct
} event;
#if _MSVCR_VER >= 110
#define CV_WAKE (void*)1
typedef struct cv_queue {
struct cv_queue *next;
LONG expired;
@ -2299,18 +2300,20 @@ void __thiscall _Condition_variable_dtor(_Condition_variable *this)
DEFINE_THISCALL_WRAPPER(_Condition_variable_wait, 8)
void __thiscall _Condition_variable_wait(_Condition_variable *this, critical_section *cs)
{
cv_queue q;
cv_queue q, *next;
TRACE("(%p, %p)\n", this, cs);
critical_section_lock(&this->lock);
q.next = this->queue;
q.expired = FALSE;
next = q.next;
this->queue = &q;
critical_section_unlock(&this->lock);
critical_section_unlock(cs);
NtWaitForKeyedEvent(keyed_event, &q, 0, NULL);
while (q.next != CV_WAKE)
RtlWaitOnAddress(&q.next, &next, sizeof(next), NULL);
critical_section_lock(cs);
}
@ -2323,7 +2326,7 @@ bool __thiscall _Condition_variable_wait_for(_Condition_variable *this,
LARGE_INTEGER to;
NTSTATUS status;
FILETIME ft;
cv_queue *q;
cv_queue *q, *next;
TRACE("(%p %p %d)\n", this, cs, timeout);
@ -2331,6 +2334,7 @@ bool __thiscall _Condition_variable_wait_for(_Condition_variable *this,
critical_section_lock(&this->lock);
q->next = this->queue;
q->expired = FALSE;
next = q->next;
this->queue = q;
critical_section_unlock(&this->lock);
@ -2339,14 +2343,15 @@ bool __thiscall _Condition_variable_wait_for(_Condition_variable *this,
GetSystemTimeAsFileTime(&ft);
to.QuadPart = ((LONGLONG)ft.dwHighDateTime << 32) +
ft.dwLowDateTime + (LONGLONG)timeout * 10000;
status = NtWaitForKeyedEvent(keyed_event, q, 0, &to);
if(status == STATUS_TIMEOUT) {
if(!InterlockedExchange(&q->expired, TRUE)) {
critical_section_lock(cs);
return FALSE;
while (q->next != CV_WAKE) {
status = RtlWaitOnAddress(&q->next, &next, sizeof(next), &to);
if(status == STATUS_TIMEOUT) {
if(!InterlockedExchange(&q->expired, TRUE)) {
critical_section_lock(cs);
return FALSE;
}
break;
}
else
NtWaitForKeyedEvent(keyed_event, q, 0, 0);
}
operator_delete(q);
@ -2376,8 +2381,9 @@ void __thiscall _Condition_variable_notify_one(_Condition_variable *this)
this->queue = node->next;
critical_section_unlock(&this->lock);
node->next = CV_WAKE;
if(!InterlockedExchange(&node->expired, TRUE)) {
NtReleaseKeyedEvent(keyed_event, node, 0, NULL);
RtlWakeAddressSingle(&node->next);
return;
} else {
HeapFree(GetProcessHeap(), 0, node);
@ -2405,8 +2411,9 @@ void __thiscall _Condition_variable_notify_all(_Condition_variable *this)
while(ptr) {
cv_queue *next = ptr->next;
ptr->next = CV_WAKE;
if(!InterlockedExchange(&ptr->expired, TRUE))
NtReleaseKeyedEvent(keyed_event, ptr, 0, NULL);
RtlWakeAddressSingle(&ptr->next);
else
HeapFree(GetProcessHeap(), 0, ptr);
ptr = next;