opelly/Stockfish
1
0
Fork 0
mirror of https://github.com/opelly27/Stockfish.git synced 2026-05-20 09:47:46 +00:00
Code Issues Packages Projects Releases Wiki Activity

Improve comments in SMP code

Browse Source 
No functional change.
This commit is contained in:
Marco Costalba
2015-02-20 12:13:09 +01:00
parent a6f873cd8d
commit 7ff965eebf
3 changed files with 10 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/search.cpp
+8 -7
View File
@@ -1517,9 +1517,9 @@ void Thread::idle_loop() {
// Pointer 'this_sp' is not null only if we are called from split(), and not
// at the thread creation. This means we are the split point's master.
SplitPoint* this_sp = splitPointsSize ? activeSplitPoint : nullptr;
SplitPoint* this_sp = activeSplitPoint;
assert(!this_sp || (this_sp->masterThread == this && searching));
assert(!this_sp || (this_sp->master == this && searching));
while (!exit)
{
@@ -1529,6 +1529,7 @@ void Thread::idle_loop() {
Threads.mutex.lock();
assert(activeSplitPoint);
SplitPoint* sp = activeSplitPoint;
Threads.mutex.unlock();
@@ -1567,11 +1568,11 @@ void Thread::idle_loop() {
// Wake up the master thread so to allow it to return from the idle
// loop in case we are the last slave of the split point.
if ( this != sp->masterThread
&& sp->slavesMask.none())
if (this != sp->master && sp->slavesMask.none())
{
assert(!sp->masterThread->searching);
sp->masterThread->notify_one();
assert(!sp->master->searching);
sp->master->notify_one();
}
// After releasing the lock we can't access any SplitPoint related data
@@ -1638,7 +1639,7 @@ void Thread::idle_loop() {
}
}
// Grab the lock to avoid races with Thread::notify_one()
// Avoid races with notify_one() fired from last slave of the split point
std::unique_lock<std::mutex> lk(mutex);
// If we are master and all slaves have finished then exit idle_loop