1 files changed, 149 insertions, 0 deletions
diff --git a/ml/dlib/dlib/misc_api/misc_api_kernel_1.cpp b/ml/dlib/dlib/misc_api/misc_api_kernel_1.cpp
new file mode 100644
index 000000000..f17d850e1
--- /dev/null
+++ b/ml/dlib/dlib/misc_api/misc_api_kernel_1.cpp
@@ -0,0 +1,149 @@
+// Copyright (C) 2004  Davis E. King (davis@dlib.net)
+// License: Boost Software License   See LICENSE.txt for the full license.
+#ifndef DLIB_MISC_API_KERNEL_1_CPp_
+#define DLIB_MISC_API_KERNEL_1_CPp_
+
+#include "../platform.h"
+#include "../threads.h"
+
+#ifdef WIN32
+
+#include "misc_api_kernel_1.h"
+
+#include "../windows_magic.h"
+#include <mmsystem.h>
+#include <windows.h>
+
+// tell visual studio to link to the library needed to call timeGetTime() 
+#ifdef _MSC_VER
+#pragma comment (lib, "winmm.lib")
+#endif
+
+#ifdef __BORLANDC__
+// Apparently the borland compiler doesn't define this.
+#define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
+#endif
+
+namespace dlib
+{
+// ----------------------------------------------------------------------------------------
+
+    void sleep (
+        unsigned long milliseconds
+    )
+    {
+        ::Sleep(milliseconds);
+    }
+
+// ----------------------------------------------------------------------------------------
+
+    namespace
+    {
+        mutex& cwd_mutex()
+        {
+            static mutex m;
+            return m;
+        }
+        // Make sure the above mutex gets constructed before main() 
+        // starts.  This way we can be pretty sure it will be constructed
+        // before any threads could possibly call set_current_dir() or
+        // get_current_dir() simultaneously.
+        struct construct_cwd_mutex
+        {
+            construct_cwd_mutex()
+            {
+                cwd_mutex();
+            }
+        } oaimvweoinvwe;
+    }
+
+    std::string get_current_dir (
+    )
+    {
+        // need to lock a mutex here because getting and setting the
+        // current working directory is not thread safe on windows.
+        auto_mutex lock(cwd_mutex());
+        char buf[1024];
+        if (GetCurrentDirectoryA(sizeof(buf),buf) == 0)
+        {
+            return std::string();
+        }
+        else
+        {
+            return std::string(buf);
+        }
+    }
+
+// ----------------------------------------------------------------------------------------
+
+    void set_current_dir (
+        const std::string& new_dir
+    )
+    {
+        // need to lock a mutex here because getting and setting the
+        // current working directory is not thread safe on windows.
+        auto_mutex lock(cwd_mutex());
+        if (SetCurrentDirectoryA(new_dir.c_str()) == 0)
+        {
+            throw set_current_dir_error("Error changing current dir to '" + new_dir + "'");
+        }
+    }
+
+// ----------------------------------------------------------------------------------------
+
+    uint64 timestamper::
+    get_timestamp (
+    ) const
+    {
+        unsigned long temp = timeGetTime();
+        if (temp >= last_time)
+        {            
+            last_time = temp;
+            return (offset + temp)*1000;
+        }
+        else
+        {
+            last_time = temp;
+
+            // there was overflow since the last call so we need to make the offset
+            // bigger to account for that
+            offset += dword_max;
+            return (offset + temp)*1000;
+        }        
+    }
+
+// ----------------------------------------------------------------------------------------
+
+    void create_directory (
+        const std::string& dir
+    )
+    {
+        if (CreateDirectoryA(dir.c_str(),0) == 0)
+        {
+            // an error has occurred
+            if (GetLastError() == ERROR_ALREADY_EXISTS)
+            {
+                // make sure this is actually a directory
+                DWORD attribs = GetFileAttributesA(dir.c_str());
+                if (attribs == INVALID_FILE_ATTRIBUTES ||
+                    (attribs&FILE_ATTRIBUTE_DIRECTORY) == 0)
+                {
+                    // it isn't a directory
+                    throw dir_create_error(dir);
+                }
+            }
+            else
+            {
+                throw dir_create_error(dir);
+            }
+        }
+    }
+
+// ----------------------------------------------------------------------------------------
+    
+}
+
+#endif // WIN32
+
+#endif // DLIB_MISC_API_KERNEL_1_CPp_
+