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1 // Copyright 2014 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 #include "mojo/system/entrypoints.h" | |
6 | |
7 #include "base/logging.h" | |
8 #include "mojo/public/c/system/buffer.h" | |
9 #include "mojo/public/c/system/data_pipe.h" | |
10 #include "mojo/public/c/system/functions.h" | |
11 #include "mojo/public/c/system/message_pipe.h" | |
12 #include "mojo/system/core.h" | |
13 | |
14 static mojo::system::Core* g_core = nullptr; | |
15 | |
16 using mojo::system::MakeUserPointer; | |
17 | |
18 namespace mojo { | |
19 namespace system { | |
20 namespace entrypoints { | |
21 | |
22 void SetCore(Core* core) { | |
23 g_core = core; | |
24 } | |
25 | |
26 Core* GetCore() { | |
27 return g_core; | |
28 } | |
29 | |
30 } // namespace entrypoints | |
31 } // namepace system | |
32 } // namespace mojo | |
33 | |
34 // Definitions of the system functions. | |
35 extern "C" { | |
36 MojoTimeTicks MojoGetTimeTicksNow() { | |
37 return g_core->GetTimeTicksNow(); | |
38 } | |
39 | |
40 MojoResult MojoClose(MojoHandle handle) { | |
41 return g_core->Close(handle); | |
42 } | |
43 | |
44 MojoResult MojoWait(MojoHandle handle, | |
45 MojoHandleSignals signals, | |
46 MojoDeadline deadline) { | |
47 return g_core->Wait( | |
48 handle, signals, deadline, mojo::system::NullUserPointer()); | |
49 } | |
50 | |
51 MojoResult MojoWaitMany(const MojoHandle* handles, | |
52 const MojoHandleSignals* signals, | |
53 uint32_t num_handles, | |
54 MojoDeadline deadline) { | |
55 uint32_t result_index = static_cast<uint32_t>(-1); | |
56 MojoResult result = g_core->WaitMany(MakeUserPointer(handles), | |
57 MakeUserPointer(signals), | |
58 num_handles, | |
59 deadline, | |
60 MakeUserPointer(&result_index), | |
61 mojo::system::NullUserPointer()); | |
62 return (result == MOJO_RESULT_OK) ? static_cast<MojoResult>(result_index) | |
63 : result; | |
64 } | |
65 | |
66 MojoResult MojoCreateMessagePipe(const MojoCreateMessagePipeOptions* options, | |
67 MojoHandle* message_pipe_handle0, | |
68 MojoHandle* message_pipe_handle1) { | |
69 return g_core->CreateMessagePipe(MakeUserPointer(options), | |
70 MakeUserPointer(message_pipe_handle0), | |
71 MakeUserPointer(message_pipe_handle1)); | |
72 } | |
73 | |
74 MojoResult MojoWriteMessage(MojoHandle message_pipe_handle, | |
75 const void* bytes, | |
76 uint32_t num_bytes, | |
77 const MojoHandle* handles, | |
78 uint32_t num_handles, | |
79 MojoWriteMessageFlags flags) { | |
80 return g_core->WriteMessage(message_pipe_handle, | |
81 MakeUserPointer(bytes), | |
82 num_bytes, | |
83 MakeUserPointer(handles), | |
84 num_handles, | |
85 flags); | |
86 } | |
87 | |
88 MojoResult MojoReadMessage(MojoHandle message_pipe_handle, | |
89 void* bytes, | |
90 uint32_t* num_bytes, | |
91 MojoHandle* handles, | |
92 uint32_t* num_handles, | |
93 MojoReadMessageFlags flags) { | |
94 return g_core->ReadMessage(message_pipe_handle, | |
95 MakeUserPointer(bytes), | |
96 MakeUserPointer(num_bytes), | |
97 MakeUserPointer(handles), | |
98 MakeUserPointer(num_handles), | |
99 flags); | |
100 } | |
101 | |
102 MojoResult MojoCreateDataPipe(const MojoCreateDataPipeOptions* options, | |
103 MojoHandle* data_pipe_producer_handle, | |
104 MojoHandle* data_pipe_consumer_handle) { | |
105 return g_core->CreateDataPipe(MakeUserPointer(options), | |
106 MakeUserPointer(data_pipe_producer_handle), | |
107 MakeUserPointer(data_pipe_consumer_handle)); | |
108 } | |
109 | |
110 MojoResult MojoWriteData(MojoHandle data_pipe_producer_handle, | |
111 const void* elements, | |
112 uint32_t* num_elements, | |
113 MojoWriteDataFlags flags) { | |
114 return g_core->WriteData(data_pipe_producer_handle, | |
115 MakeUserPointer(elements), | |
116 MakeUserPointer(num_elements), | |
117 flags); | |
118 } | |
119 | |
120 MojoResult MojoBeginWriteData(MojoHandle data_pipe_producer_handle, | |
121 void** buffer, | |
122 uint32_t* buffer_num_elements, | |
123 MojoWriteDataFlags flags) { | |
124 return g_core->BeginWriteData(data_pipe_producer_handle, | |
125 MakeUserPointer(buffer), | |
126 MakeUserPointer(buffer_num_elements), | |
127 flags); | |
128 } | |
129 | |
130 MojoResult MojoEndWriteData(MojoHandle data_pipe_producer_handle, | |
131 uint32_t num_elements_written) { | |
132 return g_core->EndWriteData(data_pipe_producer_handle, num_elements_written); | |
133 } | |
134 | |
135 MojoResult MojoReadData(MojoHandle data_pipe_consumer_handle, | |
136 void* elements, | |
137 uint32_t* num_elements, | |
138 MojoReadDataFlags flags) { | |
139 return g_core->ReadData(data_pipe_consumer_handle, | |
140 MakeUserPointer(elements), | |
141 MakeUserPointer(num_elements), | |
142 flags); | |
143 } | |
144 | |
145 MojoResult MojoBeginReadData(MojoHandle data_pipe_consumer_handle, | |
146 const void** buffer, | |
147 uint32_t* buffer_num_elements, | |
148 MojoReadDataFlags flags) { | |
149 return g_core->BeginReadData(data_pipe_consumer_handle, | |
150 MakeUserPointer(buffer), | |
151 MakeUserPointer(buffer_num_elements), | |
152 flags); | |
153 } | |
154 | |
155 MojoResult MojoEndReadData(MojoHandle data_pipe_consumer_handle, | |
156 uint32_t num_elements_read) { | |
157 return g_core->EndReadData(data_pipe_consumer_handle, num_elements_read); | |
158 } | |
159 | |
160 MojoResult MojoCreateSharedBuffer( | |
161 const struct MojoCreateSharedBufferOptions* options, | |
162 uint64_t num_bytes, | |
163 MojoHandle* shared_buffer_handle) { | |
164 return g_core->CreateSharedBuffer(MakeUserPointer(options), | |
165 num_bytes, | |
166 MakeUserPointer(shared_buffer_handle)); | |
167 } | |
168 | |
169 MojoResult MojoDuplicateBufferHandle( | |
170 MojoHandle buffer_handle, | |
171 const struct MojoDuplicateBufferHandleOptions* options, | |
172 MojoHandle* new_buffer_handle) { | |
173 return g_core->DuplicateBufferHandle(buffer_handle, | |
174 MakeUserPointer(options), | |
175 MakeUserPointer(new_buffer_handle)); | |
176 } | |
177 | |
178 MojoResult MojoMapBuffer(MojoHandle buffer_handle, | |
179 uint64_t offset, | |
180 uint64_t num_bytes, | |
181 void** buffer, | |
182 MojoMapBufferFlags flags) { | |
183 return g_core->MapBuffer( | |
184 buffer_handle, offset, num_bytes, MakeUserPointer(buffer), flags); | |
185 } | |
186 | |
187 MojoResult MojoUnmapBuffer(void* buffer) { | |
188 return g_core->UnmapBuffer(MakeUserPointer(buffer)); | |
189 } | |
190 | |
191 } // extern "C" | |
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