cc/CCProxy.cpp

   1 // Copyright 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "config.h"
   6
   7 #include "CCProxy.h"
   8
   9 #include "CCThreadTask.h"
  10 #include <wtf/MainThread.h>
  11
  12 using namespace WTF;
  13
  14 namespace WebCore {
  15
  16 namespace {
  17 #ifndef NDEBUG
  18 bool implThreadIsOverridden = false;
  19 bool s_isMainThreadBlocked = false;
  20 base::PlatformThreadId threadIDOverridenToBeImplThread;
  21 #endif
  22 CCThread* s_mainThread = 0;
  23 CCThread* s_implThread = 0;
  24 }
  25
  26 void CCProxy::setMainThread(CCThread* thread)
  27 {
  28     s_mainThread = thread;
  29 }
  30
  31 CCThread* CCProxy::mainThread()
  32 {
  33     return s_mainThread;
  34 }
  35
  36 bool CCProxy::hasImplThread()
  37 {
  38     return s_implThread;
  39 }
  40
  41 void CCProxy::setImplThread(CCThread* thread)
  42 {
  43     s_implThread = thread;
  44 }
  45
  46 CCThread* CCProxy::implThread()
  47 {
  48     return s_implThread;
  49 }
  50
  51 CCThread* CCProxy::currentThread()
  52 {
  53     base::PlatformThreadId currentThreadIdentifier = base::PlatformThread::CurrentId();
  54     if (s_mainThread && s_mainThread->threadID() == currentThreadIdentifier)
  55         return s_mainThread;
  56     if (s_implThread && s_implThread->threadID() == currentThreadIdentifier)
  57         return s_implThread;
  58     return 0;
  59 }
  60
  61 #ifndef NDEBUG
  62 bool CCProxy::isMainThread()
  63 {
  64     ASSERT(s_mainThread);
  65     if (implThreadIsOverridden && base::PlatformThread::CurrentId() == threadIDOverridenToBeImplThread)
  66         return false;
  67     return base::PlatformThread::CurrentId() == s_mainThread->threadID();
  68 }
  69
  70 bool CCProxy::isImplThread()
  71 {
  72     base::PlatformThreadId implThreadID = s_implThread ? s_implThread->threadID() : 0;
  73     if (implThreadIsOverridden && base::PlatformThread::CurrentId() == threadIDOverridenToBeImplThread)
  74         return true;
  75     return base::PlatformThread::CurrentId() == implThreadID;
  76 }
  77
  78 void CCProxy::setCurrentThreadIsImplThread(bool isImplThread)
  79 {
  80     implThreadIsOverridden = isImplThread;
  81     if (isImplThread)
  82         threadIDOverridenToBeImplThread = base::PlatformThread::CurrentId();
  83 }
  84
  85 bool CCProxy::isMainThreadBlocked()
  86 {
  87     return s_isMainThreadBlocked;
  88 }
  89
  90 void CCProxy::setMainThreadBlocked(bool isMainThreadBlocked)
  91 {
  92     s_isMainThreadBlocked = isMainThreadBlocked;
  93 }
  94 #endif
  95
  96 CCProxy::CCProxy()
  97 {
  98     ASSERT(isMainThread());
  99 }
 100
 101 CCProxy::~CCProxy()
 102 {
 103     ASSERT(isMainThread());
 104 }
 105
 106 }