cef/include/capi/cef_trace_capi.h

// Copyright (c) 2014 Marshall A. Greenblatt. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//    * Redistributions of source code must retain the above copyright
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//    * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//    * Neither the name of Google Inc. nor the name Chromium Embedded
// Framework nor the names of its contributors may be used to endorse
// or promote products derived from this software without specific prior
// written permission.
//
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// ---------------------------------------------------------------------------
//
// This file was generated by the CEF translator tool and should not edited
// by hand. See the translator.README.txt file in the tools directory for
// more information.
//

#ifndef CEF_INCLUDE_CAPI_CEF_TRACE_CAPI_H_
#define CEF_INCLUDE_CAPI_CEF_TRACE_CAPI_H_
#pragma once

#ifdef __cplusplus
extern "C" {
#endif

#include "include/capi/cef_base_capi.h"


///
// Start tracing events on all processes. Tracing begins immediately locally,
// and asynchronously on child processes as soon as they receive the
// BeginTracing request.
//
// If CefBeginTracing was called previously, or if a CefEndTracingAsync call is
// pending, CefBeginTracing will fail and return false (0).
//
// |categories| is a comma-delimited list of category wildcards. A category can
// have an optional '-' prefix to make it an excluded category. Having both
// included and excluded categories in the same list is not supported.
//
// Example: "test_MyTest*" Example: "test_MyTest*,test_OtherStuff" Example:
// "-excluded_category1,-excluded_category2"
//
// This function must be called on the browser process UI thread.
///
CEF_EXPORT int cef_begin_tracing(struct _cef_trace_client_t* client,
    const cef_string_t* categories);

///
// Get the maximum trace buffer percent full state across all processes.
//
// cef_trace_client_t::OnTraceBufferPercentFullReply will be called
// asynchronously after the value is determined. When any child process reaches
// 100% full tracing will end automatically and
// cef_trace_client_t::OnEndTracingComplete will be called. This function fails
// and returns false (0) if trace is ending or disabled, no cef_trace_client_t
// was passed to CefBeginTracing, or if a previous call to
// CefGetTraceBufferPercentFullAsync is pending.
//
// This function must be called on the browser process UI thread.
///
CEF_EXPORT int cef_get_trace_buffer_percent_full_async();

///
// Stop tracing events on all processes.
//
// This function will fail and return false (0) if a previous call to
// CefEndTracingAsync is already pending or if CefBeginTracing was not called.
//
// This function must be called on the browser process UI thread.
///
CEF_EXPORT int cef_end_tracing_async();

///
// Returns the current system trace time or, if none is defined, the current
// high-res time. Can be used by clients to synchronize with the time
// information in trace events.
///
CEF_EXPORT int64 cef_now_from_system_trace_time();

///
// Implement this structure to receive trace notifications. The functions of
// this structure will be called on the browser process UI thread.
///
typedef struct _cef_trace_client_t {
  ///
  // Base structure.
  ///
  cef_base_t base;

  ///
  // Called 0 or more times between CefBeginTracing and OnEndTracingComplete
  // with a UTF8 JSON |fragment| of the specified |fragment_size|. Do not keep a
  // reference to |fragment|.
  ///
  void (CEF_CALLBACK *on_trace_data_collected)(struct _cef_trace_client_t* self,
      const char* fragment, size_t fragment_size);

  ///
  // Called in response to CefGetTraceBufferPercentFullAsync.
  ///
  void (CEF_CALLBACK *on_trace_buffer_percent_full_reply)(
      struct _cef_trace_client_t* self, float percent_full);

  ///
  // Called after all processes have sent their trace data.
  ///
  void (CEF_CALLBACK *on_end_tracing_complete)(
      struct _cef_trace_client_t* self);
} cef_trace_client_t;


#ifdef __cplusplus
}
#endif

#endif  // CEF_INCLUDE_CAPI_CEF_TRACE_CAPI_H_