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 14static mojo::system::Core* g_core = nullptr; 15 16using mojo::system::MakeUserPointer; 17 18namespace mojo { 19namespace system { 20namespace entrypoints { 21 22void SetCore(Core* core) { 23 g_core = core; 24} 25 26Core* GetCore() { 27 return g_core; 28} 29 30} // namespace entrypoints 31} // namepace system 32} // namespace mojo 33 34// Definitions of the system functions. 35extern "C" { 36MojoTimeTicks MojoGetTimeTicksNow() { 37 return g_core->GetTimeTicksNow(); 38} 39 40MojoResult MojoClose(MojoHandle handle) { 41 return g_core->Close(handle); 42} 43 44MojoResult MojoWait(MojoHandle handle, 45 MojoHandleSignals signals, 46 MojoDeadline deadline) { 47 return g_core->Wait( 48 handle, signals, deadline, mojo::system::NullUserPointer()); 49} 50 51MojoResult 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 66MojoResult 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 74MojoResult 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 88MojoResult 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 102MojoResult 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 110MojoResult 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 120MojoResult 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 130MojoResult 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 135MojoResult 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 145MojoResult 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 155MojoResult 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 160MojoResult 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 169MojoResult 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 178MojoResult 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 187MojoResult MojoUnmapBuffer(void* buffer) { 188 return g_core->UnmapBuffer(MakeUserPointer(buffer)); 189} 190 191} // extern "C" 192