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Rename ThreadsManager to ThreadPool 

It is a more standard naming convention.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
sf_2.3.1_base
Marco Costalba 2012-06-24 09:30:40 +01:00
parent 5f5d056c8f
commit 960a689769
2 changed files with 28 additions and 27 deletions
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43
src/thread.cpp
View File

@ -27,7 +27,7 @@
using namespace Search;
ThreadsManager Threads; // Global object
ThreadPool Threads; // Global object
namespace { extern "C" {
@ -199,7 +199,7 @@ bool Thread::is_available_to(Thread* master) const {
// a c'tor becuase Threads is a static object and we need a fully initialized
// engine at this point due to allocation of endgames in Thread c'tor.
void ThreadsManager::init() {
void ThreadPool::init() {
cond_init(sleepCond);
lock_init(splitLock);
@ -211,7 +211,7 @@ void ThreadsManager::init() {
// d'tor cleanly terminates the threads when the program exits.
ThreadsManager::~ThreadsManager() {
ThreadPool::~ThreadPool() {
for (int i = 0; i < size(); i++)
delete threads[i];
@ -227,7 +227,7 @@ ThreadsManager::~ThreadsManager() {
// objects are dynamically allocated to avoid creating in advance all possible
// threads, with included pawns and material tables, if only few are used.
void ThreadsManager::read_uci_options() {
void ThreadPool::read_uci_options() {
maxThreadsPerSplitPoint = Options["Max Threads per Split Point"];
minimumSplitDepth = Options["Min Split Depth"] * ONE_PLY;
@ -251,7 +251,7 @@ void ThreadsManager::read_uci_options() {
// on the sleep condition and to reset maxPly. When useSleepingThreads is set
// threads will be woken up at split time.
void ThreadsManager::wake_up() const {
void ThreadPool::wake_up() const {
for (int i = 0; i < size(); i++)
{
@ -267,7 +267,7 @@ void ThreadsManager::wake_up() const {
// sleep() is called after the search finishes to ask all the threads but the
// main one to go waiting on a sleep condition.
void ThreadsManager::sleep() const {
void ThreadPool::sleep() const {
for (int i = 1; i < size(); i++) // Main thread will go to sleep by itself
threads[i]->do_sleep = true; // to avoid a race with start_searching()
@ -277,7 +277,7 @@ void ThreadsManager::sleep() const {
// available_slave_exists() tries to find an idle thread which is available as
// a slave for the thread 'master'.
bool ThreadsManager::available_slave_exists(Thread* master) const {
bool ThreadPool::available_slave_exists(Thread* master) const {
for (int i = 0; i < size(); i++)
if (threads[i]->is_available_to(master))
@ -297,9 +297,10 @@ bool ThreadsManager::available_slave_exists(Thread* master) const {
// search(). When all threads have returned from search() then split() returns.
template <bool Fake>
Value ThreadsManager::split(Position& pos, Stack* ss, Value alpha, Value beta,
Value bestValue, Move* bestMove, Depth depth,
Move threatMove, int moveCount, MovePicker* mp, int nodeType) {
Value ThreadPool::split(Position& pos, Stack* ss, Value alpha, Value beta,
Value bestValue, Move* bestMove, Depth depth,
Move threatMove, int moveCount, MovePicker* mp, int nodeType) {
assert(pos.pos_is_ok());
assert(bestValue > -VALUE_INFINITE);
assert(bestValue <= alpha);
@ -395,14 +396,14 @@ Value ThreadsManager::split(Position& pos, Stack* ss, Value alpha, Value beta,
}
// Explicit template instantiations
template Value ThreadsManager::split<false>(Position&, Stack*, Value, Value, Value, Move*, Depth, Move, int, MovePicker*, int);
template Value ThreadsManager::split<true>(Position&, Stack*, Value, Value, Value, Move*, Depth, Move, int, MovePicker*, int);
template Value ThreadPool::split<false>(Position&, Stack*, Value, Value, Value, Move*, Depth, Move, int, MovePicker*, int);
template Value ThreadPool::split<true>(Position&, Stack*, Value, Value, Value, Move*, Depth, Move, int, MovePicker*, int);
// ThreadsManager::set_timer() is used to set the timer to trigger after msec
// milliseconds. If msec is 0 then timer is stopped.
// set_timer() is used to set the timer to trigger after msec milliseconds.
// If msec is 0 then timer is stopped.
void ThreadsManager::set_timer(int msec) {
void ThreadPool::set_timer(int msec) {
lock_grab(timer->sleepLock);
timer->maxPly = msec;
@ -411,10 +412,10 @@ void ThreadsManager::set_timer(int msec) {
}
// ThreadsManager::wait_for_search_finished() waits for main thread to go to
// sleep, this means search is finished. Then returns.
// wait_for_search_finished() waits for main thread to go to sleep, this means
// search is finished. Then returns.
void ThreadsManager::wait_for_search_finished() {
void ThreadPool::wait_for_search_finished() {
Thread* t = main_thread();
lock_grab(t->sleepLock);
@ -424,10 +425,10 @@ void ThreadsManager::wait_for_search_finished() {
}
// ThreadsManager::start_searching() wakes up the main thread sleeping in
// main_loop() so to start a new search, then returns immediately.
// start_searching() wakes up the main thread sleeping in main_loop() so to start
// a new search, then returns immediately.
void ThreadsManager::start_searching(const Position& pos, const LimitsType& limits,
void ThreadPool::start_searching(const Position& pos, const LimitsType& limits,
const std::vector<Move>& searchMoves) {
wait_for_search_finished();

12
src/thread.h
View File

@ -102,18 +102,18 @@ public:
};
/// ThreadsManager class handles all the threads related stuff like init, starting,
/// ThreadPool class handles all the threads related stuff like init, starting,
/// parking and, the most important, launching a slave thread at a split point.
/// All the access to shared thread data is done through this class.
class ThreadsManager {
/* As long as the single ThreadsManager object is defined as a global we don't
class ThreadPool {
/* As long as the single ThreadPool object is defined as a global we don't
need to explicitly initialize to zero its data members because variables with
static storage duration are automatically set to zero before enter main()
*/
public:
void init(); // No c'tor becuase Threads is static and we need engine initialized
~ThreadsManager();
void init(); // No c'tor becuase Threads is global and we need engine initialized
~ThreadPool();
Thread& operator[](int id) { return *threads[id]; }
bool use_sleeping_threads() const { return useSleepingThreads; }
@ -145,6 +145,6 @@ private:
bool useSleepingThreads;
};
extern ThreadsManager Threads;
extern ThreadPool Threads;
#endif // !defined(THREAD_H_INCLUDED)