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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
6/**
7 * This file defines the <code>PPB_UMA_Private</code> interface.
8 */
9
10[generate_thunk,thunk_include="ppapi/thunk/ppb_uma_singleton_api.h"]
11
12label Chrome {
13  M35 = 0.3
14};
15
16/**
17 * Contains functions for plugins to report UMA usage stats.
18 */
19interface PPB_UMA_Private {
20  /**
21   * HistogramCustomTimes is a pointer to a function which records a time
22   * sample given in milliseconds in the histogram given by |name|, possibly
23   * creating the histogram if it does not exist.
24   */
25  [singleton,api=PPB_UMA_Singleton_API]
26  void HistogramCustomTimes([in] PP_Instance instance,
27                            [in] PP_Var name,
28                            [in] int64_t sample,
29                            [in] int64_t min,
30                            [in] int64_t max,
31                            [in] uint32_t bucket_count);
32
33  /**
34   * HistogramCustomCounts is a pointer to a function which records a sample
35   * in the histogram given by |name|, possibly creating the histogram if it
36   * does not exist.
37   */
38  [singleton,api=PPB_UMA_Singleton_API]
39  void HistogramCustomCounts([in] PP_Instance instance,
40                             [in] PP_Var name,
41                             [in] int32_t sample,
42                             [in] int32_t min,
43                             [in] int32_t max,
44                             [in] uint32_t bucket_count);
45
46  /**
47   * HistogramEnumeration is a pointer to a function which records a sample
48   * in the histogram given by |name|, possibly creating the histogram if it
49   * does not exist.  The sample represents a value in an enumeration bounded
50   * by |boundary_value|, that is, sample < boundary_value always.
51   */
52  [singleton,api=PPB_UMA_Singleton_API]
53  void HistogramEnumeration([in] PP_Instance instance,
54                            [in] PP_Var name,
55                            [in] int32_t sample,
56                            [in] int32_t boundary_value);
57
58  /**
59   * IsCrashReportingEnabled returns PP_OK to the completion callback to
60   * indicate that the current user has opted-in to crash reporting, or
61   * PP_ERROR_* on failure or when a user has not opted-in.  This can be used to
62   * gate other reporting processes such as analytics and crash reporting.
63   */
64   [singleton,api=PPB_UMA_Singleton_API]
65   int32_t IsCrashReportingEnabled([in] PP_Instance instance,
66                                   [in] PP_CompletionCallback callback);
67};
68