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1 /* Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 /* Copyright (c) 2010 The Chromium Authors. All rights reserved. |
2 * Use of this source code is governed by a BSD-style license that can be | 2 * Use of this source code is governed by a BSD-style license that can be |
3 * found in the LICENSE file. | 3 * found in the LICENSE file. |
4 */ | 4 */ |
5 #ifndef PPAPI_C_PPB_CORE_H_ | 5 #ifndef PPAPI_C_PPB_CORE_H_ |
6 #define PPAPI_C_PPB_CORE_H_ | 6 #define PPAPI_C_PPB_CORE_H_ |
7 | 7 |
8 #include "ppapi/c/pp_bool.h" | 8 #include "ppapi/c/pp_bool.h" |
9 #include "ppapi/c/pp_resource.h" | 9 #include "ppapi/c/pp_resource.h" |
10 #include "ppapi/c/pp_stdint.h" | 10 #include "ppapi/c/pp_stdint.h" |
11 #include "ppapi/c/pp_time.h" | 11 #include "ppapi/c/pp_time.h" |
12 #include "ppapi/c/pp_var.h" | 12 #include "ppapi/c/pp_var.h" |
13 | 13 |
14 struct PP_CompletionCallback; | 14 struct PP_CompletionCallback; |
15 | 15 |
16 #define PPB_CORE_INTERFACE "PPB_Core;0.3" | 16 #define PPB_CORE_INTERFACE "PPB_Core;0.3" |
17 | 17 |
18 /** | 18 /** |
19 * @file | 19 * @file |
20 * Defines the API ... | 20 * This file defines the PPB_Core interface defined by the browser and |
21 * | 21 * and containing pointers to functions related to memory management, |
22 * time, and threads. | |
22 */ | 23 */ |
23 | 24 |
24 /** | 25 /** |
25 * @addtogroup Interfaces | 26 * @addtogroup Interfaces |
26 * @{ | 27 * @{ |
27 */ | 28 */ |
28 | 29 |
29 /** {PENDING: describe PPB_CORE} */ | 30 /** |
31 * The PPB_Core interface contains pointers to functions | |
32 * related to memory, thread, and time management on the browser. | |
dmichael(do not use this one)
2011/03/02 15:15:26
I would take 'management' out (or move it after me
jond
2011/03/02 17:11:12
Done.
jond
2011/03/02 17:11:12
Done.
| |
33 * | |
34 */ | |
30 struct PPB_Core { | 35 struct PPB_Core { |
31 /** Same as AddRefVar for Resources. */ | 36 /** |
37 * Same as AddRefVar for Resources. | |
38 * AddRefResource is a pointer to a function that adds a reference to | |
39 * a resource. | |
40 * | |
41 * @param[in] config A PP_Resource containing the resource. | |
42 */ | |
32 void (*AddRefResource)(PP_Resource resource); | 43 void (*AddRefResource)(PP_Resource resource); |
33 | 44 |
34 /** Same as ReleaseVar for Resources. */ | 45 /** |
46 * ReleaseResource is a pointer to a function that removes a reference | |
47 * from a resource. | |
48 * | |
49 * @param[in] config A PP_Resource containing the resource. | |
50 */ | |
51 /*Same as ReleaseVar for Resources. */ | |
35 void (*ReleaseResource)(PP_Resource resource); | 52 void (*ReleaseResource)(PP_Resource resource); |
36 | 53 |
37 /** | 54 /** |
38 * Allocate memory. | 55 * MemAlloc is a pointer to a function that allocate memory. |
39 * | 56 * |
40 * @return NULL If the allocation fails. | 57 * @param[in] num_bytes A size_t number of bytes to allocate. |
58 * @return A pointer to the memory if successful, NULL If the | |
59 * allocation fails. | |
41 */ | 60 */ |
42 void* (*MemAlloc)(size_t num_bytes); | 61 void* (*MemAlloc)(size_t num_bytes); |
43 | 62 |
44 /** Free memory; it's safe to pass NULL. */ | 63 /** |
64 * MemFree is a pointer to a function that deallocates memory. | |
65 * | |
66 * @param[in] ptr A pointer to the memory to deallocate. It is save to | |
dmichael(do not use this one)
2011/03/02 15:15:26
save->safe
jond
2011/03/02 17:11:12
Done.
| |
67 * pass NULL to this function. | |
68 */ | |
45 void (*MemFree)(void* ptr); | 69 void (*MemFree)(void* ptr); |
46 | 70 |
47 /** | 71 /** |
48 * Returns the "wall clock time" according to the browser. | 72 * GetTime is a pointer to a function that returns the "wall clock |
73 * time" according to the browser. | |
49 * | 74 * |
50 * See the definition of PP_Time. | 75 * @return A PP_Time containing the "wall clock time" according to the |
76 * browser. | |
51 */ | 77 */ |
52 PP_Time (*GetTime)(); | 78 PP_Time (*GetTime)(); |
53 | 79 |
54 /** | 80 /** |
55 * Returns the "tick time" according to the browser. This clock is used by | 81 * GetTimeTicks is a pointer to a function that returns the "tick time" |
56 * the browser when passing some event times to the plugin (e.g., via the | 82 * according to the browser. This clock is used by the browser when passing |
83 * some event times to the plugin (e.g., via the | |
57 * PP_InputEvent::time_stamp_seconds field). It is not correlated to any | 84 * PP_InputEvent::time_stamp_seconds field). It is not correlated to any |
58 * actual wall clock time (like GetTime()). Because of this, it will not run | 85 * actual wall clock time (like GetTime()). Because of this, it will not run |
59 * change if the user changes their computer clock. | 86 * change if the user changes their computer clock. |
60 * | 87 * |
61 * TODO(brettw) http://code.google.com/p/chromium/issues/detail?id=57448 | 88 * @return A PP_TimeTicks containing the "tick time" according to the |
62 * This currently does change with wall clock time, but will be fixed in | 89 * browser. |
63 * a future release. | |
64 */ | 90 */ |
91 | |
92 // TODO(brettw) http://code.google.com/p/chromium/issues/detail?id=57448 | |
93 // This currently does change with wall clock time, but will be fixed in | |
94 // a future release. | |
65 PP_TimeTicks (*GetTimeTicks)(); | 95 PP_TimeTicks (*GetTimeTicks)(); |
66 | 96 |
67 /** | 97 /** |
68 * Schedules work to be executed on the main plugin thread after the | 98 * CallOnMainThread is a pointer to a function that schedules work to be |
69 * specified delay. The delay may be 0 to specify a call back as soon as | 99 * executed on the main module thread after the specified delay. The delay |
70 * possible. | 100 * may be 0 to specify a call back as soon as possible. |
71 * | 101 * |
72 * The |result| parameter will just be passed as the second argument as the | 102 * The |result| parameter will just be passed as the second argument as the |
dmichael(do not use this one)
2011/03/02 15:15:26
'second argument as the' -> 'second argument to th
jond
2011/03/02 17:11:12
Done.
| |
73 * callback. Many applications won't need this, but it allows a plugin to | 103 * callback. Many applications won't need this, but it allows a plugin to |
74 * emulate calls of some callbacks which do use this value. | 104 * emulate calls of some callbacks which do use this value. |
75 * | 105 * |
76 * NOTE: If the browser is shutting down or if the plugin has no instances, | 106 * NOTE: If the browser is shutting down or if the plugin has no instances, |
77 * then the callback function may not be called. | 107 * then the callback function may not be called. |
108 * | |
109 * @param[in] delay_in_milliseconds A int32_t delay in milliseconds. | |
dmichael(do not use this one)
2011/03/02 15:15:26
A->An
jond
2011/03/02 17:11:12
Done.
| |
110 * @param[in] callback A PP_CompletionCallback callback function that the | |
111 * browser calls when... | |
dmichael(do not use this one)
2011/03/02 15:15:26
Maybe: "The PP_CompletionCallback callback functi
jond
2011/03/02 17:11:12
Done.
| |
112 * @param[in] result An int32_t | |
dmichael(do not use this one)
2011/03/02 15:15:26
Maybe 'An int32_t that the browser will pass to th
jond
2011/03/02 17:11:12
Done.
| |
78 */ | 113 */ |
79 void (*CallOnMainThread)(int32_t delay_in_milliseconds, | 114 void (*CallOnMainThread)(int32_t delay_in_milliseconds, |
80 struct PP_CompletionCallback callback, | 115 struct PP_CompletionCallback callback, |
81 int32_t result); | 116 int32_t result); |
82 | 117 |
83 /** | 118 /** |
84 * Returns true if the current thread is the main pepper thread. | 119 * IsMainThread is a pointer to a function that returns true if the |
120 * current thread is the main pepper thread. | |
85 * | 121 * |
86 * This is useful for implementing sanity checks, and deciding if dispatching | 122 * This function useful for implementing sanity checks, and deciding if |
dmichael(do not use this one)
2011/03/02 15:15:26
'function'->'function is'
jond
2011/03/02 17:11:12
Done.
| |
87 * via CallOnMainThread() is required. | 123 * dispatching using CallOnMainThread() is required. |
124 * | |
125 * @return A PP_BOOL containing PP_TRUE if successful, otherwise PP_FALSE. | |
dmichael(do not use this one)
2011/03/02 15:15:26
'if successful,'->'if the current thread is the ma
jond
2011/03/02 17:11:12
Done.
| |
88 */ | 126 */ |
89 PP_Bool (*IsMainThread)(); | 127 PP_Bool (*IsMainThread)(); |
90 }; | 128 }; |
91 /** | 129 /** |
92 * @} | 130 * @} |
93 */ | 131 */ |
94 | 132 |
95 | 133 |
96 #endif /* PPAPI_C_DEV_PPB_CORE_DEV_H_ */ | 134 #endif /* PPAPI_C_DEV_PPB_CORE_DEV_H_ */ |
97 | 135 |
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