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| author | madmaxoft@gmail.com <madmaxoft@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6> | 2012-02-01 13:25:26 +0100 |
|---|---|---|
| committer | madmaxoft@gmail.com <madmaxoft@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6> | 2012-02-01 13:25:26 +0100 |
| commit | 83fc39219825532fbbbaa6a6af2942e82f350845 (patch) | |
| tree | 6259e556c81ee1e9f98f5a98f5d963ed2b90775f /source/cIsThread.cpp | |
| parent | cEvent: fixed wrong errorchecking in win32 Set() (diff) | |
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Diffstat (limited to 'source/cIsThread.cpp')
| -rw-r--r-- | source/cIsThread.cpp | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/source/cIsThread.cpp b/source/cIsThread.cpp new file mode 100644 index 000000000..cee4d4477 --- /dev/null +++ b/source/cIsThread.cpp @@ -0,0 +1,148 @@ +
+// cIsThread.cpp
+
+// Implements the cIsThread class representing an OS-independent wrapper for a class that implements a thread.
+// This class will eventually suupersede the old cThread class
+
+#include "Globals.h"
+
+#include "cIsThread.h"
+
+
+
+
+
+// When in MSVC, the debugger provides "thread naming" by catching special exceptions. Interface here:
+#ifdef _MSC_VER
+//
+// Usage: SetThreadName (-1, "MainThread");
+//
+
+static void SetThreadName( DWORD dwThreadID, LPCSTR szThreadName)
+{
+ struct
+ {
+ 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;
+
+ info.dwType = 0x1000;
+ info.szName = szThreadName;
+ info.dwThreadID = dwThreadID;
+ info.dwFlags = 0;
+
+ __try
+ {
+ RaiseException(0x406D1388, 0, sizeof(info) / sizeof(DWORD), (DWORD *)&info);
+ }
+ __except(EXCEPTION_CONTINUE_EXECUTION)
+ {
+ }
+}
+#endif // _MSC_VER
+
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
+// cIsThread:
+
+cIsThread::cIsThread(const AString & iThreadName) :
+ mThreadName(iThreadName),
+ mShouldTerminate(false),
+ #ifdef _WIN32
+ mHandle(NULL)
+ #else // _WIN32
+ mHasStarted(false)
+ #endif // else _WIN32
+{
+}
+
+
+
+
+
+cIsThread::~cIsThread()
+{
+ Wait();
+}
+
+
+
+
+
+bool cIsThread::Start(void)
+{
+ #ifdef _WIN32
+ assert(mHandle == NULL); // Has already started one thread?
+
+ // Create the thread suspended, so that the mHandle variable is valid in the thread procedure
+ DWORD ThreadID = 0;
+ HANDLE mHandle = CreateThread(NULL, 0, thrExecute, this, CREATE_SUSPENDED, &ThreadID);
+ if (mHandle == NULL)
+ {
+ LOGERROR("ERROR: Could not create thread \"%s\", GLE = %d!", mThreadName.c_str(), GetLastError());
+ return false;
+ }
+ ResumeThread(mHandle);
+
+ #if defined(_DEBUG) && defined(_MSC_VER)
+ // Thread naming is available only in MSVC
+ if (!mThreadName.empty())
+ {
+ SetThreadName(ThreadID, mThreadName.c_str());
+ }
+ #endif // _DEBUG and _MSC_VER
+
+ #else // _WIN32
+ assert(!mHasStarted);
+
+ if (pthread_create(&mHandle, NULL, thrExecute, this))
+ {
+ LOGERROR("ERROR: Could not create thread \"%s\", !", mThreadName.c_str());
+ return false;
+ }
+ #endif // else _WIN32
+
+ return true;
+}
+
+
+
+
+
+bool cIsThread::Wait(void)
+{
+ #ifdef _WIN32
+
+ if (mHandle == NULL)
+ {
+ return true;
+ }
+ LOG("Waiting for thread \"%s\" to terminate.", mThreadName.c_str());
+ int res = WaitForSingleObject(mHandle, INFINITE);
+ mHandle = NULL;
+ LOG("Thread \"%s\" %s terminated, GLE = %d", mThreadName.c_str(), (res == WAIT_OBJECT_0) ? "" : "not", GetLastError());
+ return (res == WAIT_OBJECT_0);
+
+ #else // _WIN32
+
+ if (!mHasStarted)
+ {
+ return true;
+ }
+ LOG("Waiting for thread \"%s\" to terminate.", mThreadName.c_str());
+ int res = pthread_join(mHandle, NULL);
+ mHasStarted = false;
+ LOG("Thread \"%s\" %s terminated, errno = %d", mThreadName.c_str(), (res == 0) ? "" : "not", errno);
+ return (res == 0);
+
+ #endif // else _WIN32
+}
+
+
+
+
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