content/browser/tracing/trace_subscriber_stdio.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_BROWSER_TRACING_TRACE_SUBSCRIBER_STDIO_H_
   6 #define CONTENT_BROWSER_TRACING_TRACE_SUBSCRIBER_STDIO_H_
   7
   8 #include <string>
   9
  10 #include "base/compiler_specific.h"
  11 #include "content/public/browser/trace_subscriber.h"
  12 #include "content/common/content_export.h"
  13
  14 namespace base {
  15 class FilePath;
  16 }
  17
  18 namespace content {
  19
  20 class TraceSubscriberStdioImpl;
  21
  22 // Stdio implementation of TraceSubscriber. Use this to write traces to a file.
  23 class CONTENT_EXPORT TraceSubscriberStdio
  24     : NON_EXPORTED_BASE(public TraceSubscriber) {
  25  public:
  26   // Creates or overwrites the specified file. Check IsValid() for success.
  27   explicit TraceSubscriberStdio(const base::FilePath& path);
  28   virtual ~TraceSubscriberStdio();
  29
  30   // Implementation of TraceSubscriber
  31   virtual void OnEndTracingComplete() OVERRIDE;
  32   virtual void OnTraceDataCollected(
  33       const scoped_refptr<base::RefCountedString>& data_ptr) OVERRIDE;
  34
  35  private:
  36   scoped_refptr<TraceSubscriberStdioImpl> impl_;
  37   DISALLOW_COPY_AND_ASSIGN(TraceSubscriberStdio);
  38 };
  39
  40 }  // namespace content
  41
  42 #endif  // CONTENT_BROWSER_TRACING_TRACE_SUBSCRIBER_STDIO_H_