Imported Upstream version 2.6.11upstream/2.6.11

1 files changed, 63 insertions, 0 deletions

diff --git a/src/mongo/platform/process_id.cpp b/src/mongo/platform/process_id.cpp
new file mode 100644
index 00000000000..424933ada0d
--- /dev/null
+++ b/src/mongo/platform/process_id.cpp
@@ -0,0 +1,63 @@
+/*    Copyright 2013 10gen Inc.
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+#include "mongo/platform/basic.h"
+
+#include "mongo/platform/process_id.h"
+
+#include <boost/static_assert.hpp>
+#include <iostream>
+#include <sstream>
+#include <limits>
+
+namespace mongo {
+
+    BOOST_STATIC_ASSERT(sizeof(NativeProcessId) == sizeof(uint32_t));
+
+    namespace {
+#ifdef _WIN32
+        inline NativeProcessId getCurrentNativeProcessId() { return GetCurrentProcessId(); }
+#else
+        inline NativeProcessId getCurrentNativeProcessId() { return getpid(); }
+#endif
+    }  // namespace
+
+    ProcessId ProcessId::getCurrent() {
+        return fromNative(getCurrentNativeProcessId());
+    }
+
+    int64_t ProcessId::asInt64() const {
+        typedef std::numeric_limits<NativeProcessId> limits;
+        if (limits::is_signed)
+            return _npid;
+        else
+            return static_cast<int64_t>(static_cast<uint64_t>(_npid));
+    }
+
+    long long ProcessId::asLongLong() const {
+        return static_cast<long long>(asInt64());
+    }
+
+    std::string ProcessId::toString() const {
+        std::ostringstream os;
+        os << *this;
+        return os.str();
+    }
+
+    std::ostream& operator<<(std::ostream& os, ProcessId pid) {
+        return os << pid.toNative();
+    }
+
+}  // namespace mongo