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authorbunnei <ericbunnie@gmail.com>2014-04-09 01:25:03 +0200
committerbunnei <ericbunnie@gmail.com>2014-04-09 01:25:03 +0200
commit63e46abdb8764bc97e91bae862c8d461e61b1965 (patch)
treee73f4aa25d7b4015a265e7bbfb6004dab7561027 /src/common/thread.cpp
parentfixed some license headers that I missed (diff)
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Diffstat (limited to 'src/common/thread.cpp')
-rw-r--r--src/common/thread.cpp133
1 files changed, 133 insertions, 0 deletions
diff --git a/src/common/thread.cpp b/src/common/thread.cpp
new file mode 100644
index 000000000..27dbf3f93
--- /dev/null
+++ b/src/common/thread.cpp
@@ -0,0 +1,133 @@
+// Copyright 2013 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#include "thread.h"
+#include "common.h"
+
+#ifdef __APPLE__
+#include <mach/mach.h>
+#elif defined BSD4_4
+#include <pthread_np.h>
+#endif
+
+#ifdef USE_BEGINTHREADEX
+#include <process.h>
+#endif
+
+namespace Common
+{
+
+int CurrentThreadId()
+{
+#ifdef _WIN32
+ return GetCurrentThreadId();
+#elif defined __APPLE__
+ return mach_thread_self();
+#else
+ return 0;
+#endif
+}
+
+#ifdef _WIN32
+
+void SetThreadAffinity(std::thread::native_handle_type thread, u32 mask)
+{
+ SetThreadAffinityMask(thread, mask);
+}
+
+void SetCurrentThreadAffinity(u32 mask)
+{
+ SetThreadAffinityMask(GetCurrentThread(), mask);
+}
+
+// Supporting functions
+void SleepCurrentThread(int ms)
+{
+ Sleep(ms);
+}
+
+void SwitchCurrentThread()
+{
+ SwitchToThread();
+}
+
+// Sets the debugger-visible name of the current thread.
+// Uses undocumented (actually, it is now documented) trick.
+// http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vsdebug/html/vxtsksettingthreadname.asp
+
+// This is implemented much nicer in upcoming msvc++, see:
+// http://msdn.microsoft.com/en-us/library/xcb2z8hs(VS.100).aspx
+void SetCurrentThreadName(const char* szThreadName)
+{
+ static const DWORD MS_VC_EXCEPTION = 0x406D1388;
+
+ #pragma pack(push,8)
+ struct THREADNAME_INFO
+ {
+ DWORD dwType; // must be 0x1000
+ LPCSTR szName; // pointer to name (in user addr space)
+ DWORD dwThreadID; // thread ID (-1=caller thread)
+ DWORD dwFlags; // reserved for future use, must be zero
+ } info;
+ #pragma pack(pop)
+
+ info.dwType = 0x1000;
+ info.szName = szThreadName;
+ info.dwThreadID = -1; //dwThreadID;
+ info.dwFlags = 0;
+
+ __try
+ {
+ RaiseException(MS_VC_EXCEPTION, 0, sizeof(info)/sizeof(ULONG_PTR), (ULONG_PTR*)&info);
+ }
+ __except(EXCEPTION_CONTINUE_EXECUTION)
+ {}
+}
+
+#else // !WIN32, so must be POSIX threads
+
+void SetThreadAffinity(std::thread::native_handle_type thread, u32 mask)
+{
+#ifdef __APPLE__
+ thread_policy_set(pthread_mach_thread_np(thread),
+ THREAD_AFFINITY_POLICY, (integer_t *)&mask, 1);
+#elif (defined __linux__ || defined BSD4_4) && !(defined ANDROID)
+ cpu_set_t cpu_set;
+ CPU_ZERO(&cpu_set);
+
+ for (int i = 0; i != sizeof(mask) * 8; ++i)
+ if ((mask >> i) & 1)
+ CPU_SET(i, &cpu_set);
+
+ pthread_setaffinity_np(thread, sizeof(cpu_set), &cpu_set);
+#endif
+}
+
+void SetCurrentThreadAffinity(u32 mask)
+{
+ SetThreadAffinity(pthread_self(), mask);
+}
+
+void SleepCurrentThread(int ms)
+{
+ usleep(1000 * ms);
+}
+
+void SwitchCurrentThread()
+{
+ usleep(1000 * 1);
+}
+
+void SetCurrentThreadName(const char* szThreadName)
+{
+#ifdef __APPLE__
+ pthread_setname_np(szThreadName);
+#else
+ pthread_setname_np(pthread_self(), szThreadName);
+#endif
+}
+
+#endif
+
+} // namespace Common