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authorDeterminant <[email protected]>2015-08-14 11:51:42 +0800
committerDeterminant <[email protected]>2015-08-14 11:51:42 +0800
commit96a32415ab43377cf1575bd3f4f2980f58028209 (patch)
tree30a2d92d73e8f40ac87b79f6f56e227bfc4eea6e /kaldi_io/src/kaldi/base/timer.h
parentc177a7549bd90670af4b29fa813ddea32cfe0f78 (diff)
add implementation for kaldi io (by ymz)
Diffstat (limited to 'kaldi_io/src/kaldi/base/timer.h')
-rw-r--r--kaldi_io/src/kaldi/base/timer.h83
1 files changed, 83 insertions, 0 deletions
diff --git a/kaldi_io/src/kaldi/base/timer.h b/kaldi_io/src/kaldi/base/timer.h
new file mode 100644
index 0000000..d93a461
--- /dev/null
+++ b/kaldi_io/src/kaldi/base/timer.h
@@ -0,0 +1,83 @@
+// base/timer.h
+
+// Copyright 2009-2011 Ondrej Glembek; Microsoft Corporation
+
+// See ../../COPYING for clarification regarding multiple authors
+//
+// 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
+
+// THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
+// WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
+// MERCHANTABLITY OR NON-INFRINGEMENT.
+// See the Apache 2 License for the specific language governing permissions and
+// limitations under the License.
+#ifndef KALDI_BASE_TIMER_H_
+#define KALDI_BASE_TIMER_H_
+
+#include "base/kaldi-utils.h"
+// Note: Sleep(float secs) is included in base/kaldi-utils.h.
+
+
+#if defined(_MSC_VER) || defined(MINGW)
+
+namespace kaldi
+{
+
+class Timer {
+ public:
+ Timer() { Reset(); }
+ void Reset() {
+ QueryPerformanceCounter(&time_start_);
+ }
+ double Elapsed() {
+ LARGE_INTEGER time_end;
+ LARGE_INTEGER freq;
+ QueryPerformanceCounter(&time_end);
+ if (QueryPerformanceFrequency(&freq) == 0) return 0.0; // Hardware does not support this.
+ return ((double)time_end.QuadPart - (double)time_start_.QuadPart) /
+ ((double)freq.QuadPart);
+ }
+ private:
+ LARGE_INTEGER time_start_;
+};
+}
+
+#else
+
+# include <sys/time.h>
+# include <unistd.h>
+namespace kaldi
+{
+class Timer
+{
+ public:
+ Timer() { Reset(); }
+
+ void Reset() { gettimeofday(&this->time_start_, &time_zone_); }
+
+ /// Returns time in seconds.
+ double Elapsed() {
+ struct timeval time_end;
+ gettimeofday(&time_end, &time_zone_);
+ double t1, t2;
+ t1 = (double)time_start_.tv_sec +
+ (double)time_start_.tv_usec/(1000*1000);
+ t2 = (double)time_end.tv_sec + (double)time_end.tv_usec/(1000*1000);
+ return t2-t1;
+ }
+
+ private:
+ struct timeval time_start_;
+ struct timezone time_zone_;
+};
+}
+
+#endif
+
+
+#endif