mirror of
https://github.com/ultimatepp/ultimatepp.git
synced 2026-05-16 06:05:58 -06:00
114 lines
1.9 KiB
C++
114 lines
1.9 KiB
C++
#include "CtrlCore.h"
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#define LLOG(x) // DLOG(x)
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namespace Upp {
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#ifdef _MULTITHREADED
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static StaticMutex sGLock;
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static thread__ int sGLockLevel = 0;
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void EnterGuiMutex()
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{
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LLOG(">EnterGuiMutex " << sGLockLevel << ' ' << IsMainThread());
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if(sGLockLevel++ == 0)
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sGLock.Enter();
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LLOG("EnterGuiMutex " << sGLockLevel << ' ' << IsMainThread());
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}
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void EnterGuiMutex(int n)
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{
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LLOG(">EnterGuiMutex: " << n << ' ' << sGLockLevel << ' ' << IsMainThread());
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if(n > 0) {
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if(sGLockLevel == 0)
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sGLock.Enter();
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sGLockLevel += n;
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}
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LLOG("EnterGuiMutex " << sGLockLevel << ' ' << IsMainThread());
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}
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bool TryEnterGuiMutex()
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{
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if(sGLockLevel == 0 && sGLock.TryEnter()) {
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sGLockLevel++;
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return true;
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}
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return false;
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}
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void LeaveGuiMutex()
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{
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LLOG(">LeaveGuiMutex " << sGLockLevel << ' ' << IsMainThread());
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ASSERT(sGLockLevel > 0);
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if(--sGLockLevel == 0)
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sGLock.Leave();
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LLOG("LeaveGuiMutex " << sGLockLevel << ' ' << IsMainThread());
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}
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int LeaveGuiMutexAll()
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{
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LLOG(">LeaveGuiMutexAll " << sGLockLevel << ' ' << IsMainThread());
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int q = sGLockLevel;
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if(q) {
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sGLock.Leave();
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sGLockLevel = 0;
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}
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LLOG("LeaveGuiMutexAll " << q << ' ' << IsMainThread());
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return q;
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}
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bool ThreadHasGuiLock()
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{
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return Thread::IsMain() || sGLockLevel;
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}
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void WakeUpGuiThread();
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struct Ctrl::CallBox {
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Semaphore sem;
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Event<> cb;
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};
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void Ctrl::PerformCall(Ctrl::CallBox *cbox)
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{
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cbox->cb();
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cbox->sem.Release();
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}
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void Ctrl::Call(Function<void ()> cb)
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{
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if(IsMainThread())
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cb();
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else {
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CallBox cbox;
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cbox.cb << cb;
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UPP::PostCallback(callback1(PerformCall, &cbox));
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WakeUpGuiThread();
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int level = LeaveGuiMutexAll(); // Unlock GUI to give main thread chance to handle Call
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cbox.sem.Wait();
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EnterGuiMutex(level);
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}
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}
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void Ctrl::ShutdownThreads()
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{
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Thread::BeginShutdownThreads();
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while(Thread::GetCount()) {
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ProcessEvents();
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Sleep(0);
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}
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Thread::EndShutdownThreads();
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}
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#else
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void Ctrl::Call(Function<void ()> cb)
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{
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cb();
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}
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#endif
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}
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