blob: a1e86917919431cfec61542ad467602767796d83 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
/* Copyright 2012 The Chromium Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* From ppp.idl modified Mon Feb 11 15:48:41 2013. */
#ifndef PPAPI_C_PPP_H_
#define PPAPI_C_PPP_H_
#include "ppapi/c/pp_macros.h"
#include "ppapi/c/pp_module.h"
#include "ppapi/c/pp_stdint.h"
#include "ppapi/c/ppb.h"
/**
* @file
* This file defines three functions that your module must
* implement to interact with the browser.
*/
#include "ppapi/c/pp_module.h"
#include "ppapi/c/pp_stdint.h"
#include "ppapi/c/ppb.h"
#if __GNUC__ >= 4
#define PP_EXPORT __attribute__ ((visibility("default")))
#elif defined(_MSC_VER)
#define PP_EXPORT __declspec(dllexport)
#endif
/* {PENDING: undefine PP_EXPORT?} */
/* We don't want name mangling for these external functions. We only need
* 'extern "C"' if we're compiling with a C++ compiler.
*/
#ifdef __cplusplus
extern "C" {
#endif
/**
* @addtogroup Functions
* @{
*/
/**
* PPP_InitializeModule() is the entry point for a module and is called by the
* browser when your module loads. Your code must implement this function.
*
* Failure indicates to the browser that this module can not be used. In this
* case, the module will be unloaded and ShutdownModule will NOT be called.
*
* @param[in] module A handle to your module. Generally you should store this
* value since it will be required for other API calls.
* @param[in] get_browser_interface A pointer to the function that you can
* use to query for browser interfaces. Generally you should store this value
* for future use.
*
* @return <code>PP_OK</code> on success. Any other value on failure.
*/
PP_EXPORT int32_t PPP_InitializeModule(PP_Module module,
PPB_GetInterface get_browser_interface);
/**
* @}
*/
/**
* @addtogroup Functions
* @{
*/
/**
* PPP_ShutdownModule() is <strong>sometimes</strong> called before the module
* is unloaded. It is not recommended that you implement this function.
*
* There is no practical use of this function for third party modules. Its
* existence is because of some internal use cases inside Chrome.
*
* Since your module runs in a separate process, there's no need to free
* allocated memory. There is also no need to free any resources since all of
* resources associated with an instance will be force-freed when that instance
* is deleted.
*
* <strong>Note:</strong> This function will always be skipped on untrusted
* (Native Client) implementations. This function may be skipped on trusted
* implementations in certain circumstances when Chrome does "fast shutdown"
* of a web page.
*/
PP_EXPORT void PPP_ShutdownModule(void);
/**
* @}
*/
/**
* @addtogroup Functions
* @{
*/
/**
* PPP_GetInterface() is called by the browser to query the module for
* interfaces it supports.
*
* Your module must implement the <code>PPP_Instance</code> interface or it
* will be unloaded. Other interfaces are optional.
*
* This function is called from within browser code whenever an interface is
* needed. This means your plugin could be reentered via this function if you
* make a browser call and it needs an interface. Furthermore, you should not
* make any other browser calls from within your implementation to avoid
* reentering the browser.
*
* As a result, your implementation of this should merely provide a lookup
* from the requested name to an interface pointer, via something like a big
* if/else block or a map, and not do any other work.
*
* @param[in] interface_name A pointer to a "PPP" (plugin) interface name.
* Interface names are null-terminated ASCII strings.
*
* @return A pointer for the interface or <code>NULL</code> if the interface is
* not supported.
*/
PP_EXPORT const void* PPP_GetInterface(const char* interface_name);
/**
* @}
*/
#ifdef __cplusplus
} /* extern "C" */
#endif
/**
* @addtogroup Typedefs
* @{
*/
/**
* Defines the type of the <code>PPP_InitializeModule</code> function.
*/
typedef int32_t (*PP_InitializeModule_Func)(
PP_Module module,
PPB_GetInterface get_browser_interface);
/**
* Defines the type of the <code>PPP_ShutdownModule</code> function.
*/
typedef void (*PP_ShutdownModule_Func)(void);
/**
* Defines the type of the <code>PPP_ShutdownModule</code> function.
*/
typedef const void* (*PP_GetInterface_Func)(const char* interface_name);
/**
* @}
*/
#endif /* PPAPI_C_PPP_H_ */
|
