installed pty

[VSoRC/.git] / node_modules / node-pty / deps / winpty / src / shared / Mutex.h

diff --git a/node_modules/node-pty/deps/winpty/src/shared/Mutex.h b/node_modules/node-pty/deps/winpty/src/shared/Mutex.h
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+// Copyright (c) 2015 Ryan Prichard
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+
+// Recent 4.x MinGW and MinGW-w64 gcc compilers lack std::mutex and
+// std::lock_guard.  I have a 5.2.0 MinGW-w64 compiler packaged through MSYS2
+// that *is* new enough, but that's one compiler against several deficient
+// ones.  Wrap CRITICAL_SECTION instead.
+
+#ifndef WINPTY_SHARED_MUTEX_H
+#define WINPTY_SHARED_MUTEX_H
+
+#include <windows.h>
+
+class Mutex {
+    CRITICAL_SECTION m_mutex;
+public:
+    Mutex()         { InitializeCriticalSection(&m_mutex);  }
+    ~Mutex()        { DeleteCriticalSection(&m_mutex);      }
+    void lock()     { EnterCriticalSection(&m_mutex);       }
+    void unlock()   { LeaveCriticalSection(&m_mutex);       }
+
+    Mutex(const Mutex &other) = delete;
+    Mutex &operator=(const Mutex &other) = delete;
+};
+
+template <typename T>
+class LockGuard {
+    T &m_lock;
+public:
+    LockGuard(T &lock) : m_lock(lock)  { m_lock.lock();    }
+    ~LockGuard()                       { m_lock.unlock();  }
+
+    LockGuard(const LockGuard &other) = delete;
+    LockGuard &operator=(const LockGuard &other) = delete;
+};
+
+#endif // WINPTY_SHARED_MUTEX_H