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119 lines
4.2 KiB
119 lines
4.2 KiB
9 years ago
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/* Copyright (c) 2012 The Chromium Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* From dev/ppb_trace_event_dev.idl modified Tue Jun 25 16:12:08 2013. */
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#ifndef PPAPI_C_DEV_PPB_TRACE_EVENT_DEV_H_
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#define PPAPI_C_DEV_PPB_TRACE_EVENT_DEV_H_
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#include "ppapi/c/pp_macros.h"
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#include "ppapi/c/pp_stdint.h"
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#define PPB_TRACE_EVENT_DEV_INTERFACE_0_1 "PPB_Trace_Event(Dev);0.1"
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#define PPB_TRACE_EVENT_DEV_INTERFACE_0_2 "PPB_Trace_Event(Dev);0.2"
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#define PPB_TRACE_EVENT_DEV_INTERFACE PPB_TRACE_EVENT_DEV_INTERFACE_0_2
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/**
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* @file
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* This file defines the <code>PPB_Trace_Event</code> interface. It is meant
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* to be used in plugins as the API that trace macros from trace_event.h use.
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*/
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/**
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* @addtogroup Typedefs
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* @{
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*/
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/**
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* A trace event timestamp.
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*/
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typedef int64_t PP_TraceEventTime;
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/**
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* @}
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*/
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/**
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* @addtogroup Interfaces
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* @{
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*/
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struct PPB_Trace_Event_Dev_0_2 {
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/**
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* Gets a pointer to a character for identifying a category name in the
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* tracing system as well as for being able to early exit in client-side
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* tracing code.
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*
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* NB: This mem_t return value should technically be const, but return values
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* for Pepper IDL of mem_t type are not const. The same is true for the arg
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* |category_enabled| for AddTraceEvent.
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*/
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void* (*GetCategoryEnabled)(const char* category_name);
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/**
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* Adds a trace event to the platform tracing system. This function call is
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* usually the result of a TRACE_* macro from trace_event.h when tracing and
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* the category of the particular trace are enabled. It is not advisable to
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* call this function on its own; it is really only meant to be used by the
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* trace macros.
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*/
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void (*AddTraceEvent)(int8_t phase,
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const void* category_enabled,
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const char* name,
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uint64_t id,
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uint32_t num_args,
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const char* arg_names[],
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const uint8_t arg_types[],
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const uint64_t arg_values[],
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uint8_t flags);
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/**
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* Version of the above interface that allows specifying a custom thread id
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* and timestamp. This is useful for when tracing data cannot be registered
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* in real time. For example, this could be used by storing timestamps
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* internally and then registering the events retroactively.
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*/
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void (*AddTraceEventWithThreadIdAndTimestamp)(int8_t phase,
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const void* category_enabled,
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const char* name,
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uint64_t id,
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int32_t thread_id,
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PP_TraceEventTime timestamp,
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uint32_t num_args,
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const char* arg_names[],
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const uint8_t arg_types[],
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const uint64_t arg_values[],
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uint8_t flags);
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/**
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* Get the current clock value. Since this uses the same function as the trace
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* events use internally, it can be used to create events with explicit time
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* stamps.
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*/
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PP_TraceEventTime (*Now)(void);
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/**
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* Sets the thread name of the calling thread in the tracing system so it will
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* show up properly in chrome://tracing.
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*/
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void (*SetThreadName)(const char* thread_name);
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};
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typedef struct PPB_Trace_Event_Dev_0_2 PPB_Trace_Event_Dev;
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struct PPB_Trace_Event_Dev_0_1 {
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void* (*GetCategoryEnabled)(const char* category_name);
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void (*AddTraceEvent)(int8_t phase,
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const void* category_enabled,
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const char* name,
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uint64_t id,
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uint32_t num_args,
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const char* arg_names[],
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const uint8_t arg_types[],
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const uint64_t arg_values[],
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uint8_t flags);
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void (*SetThreadName)(const char* thread_name);
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};
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/**
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* @}
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*/
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#endif /* PPAPI_C_DEV_PPB_TRACE_EVENT_DEV_H_ */
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