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Side by Side Diff: chrome/common/mach_ipc_mac.h

Issue 40226: Fix files with lines > 80 cols. Part 2. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Created 11 years, 9 months ago
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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2006-2008 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 BASE_MACH_IPC_MAC_H_ 5 #ifndef BASE_MACH_IPC_MAC_H_
6 #define BASE_MACH_IPC_MAC_H_ 6 #define BASE_MACH_IPC_MAC_H_
7 7
8 #include <mach/mach.h> 8 #include <mach/mach.h>
9 #include <mach/message.h> 9 #include <mach/message.h>
10 #include <servers/bootstrap.h> 10 #include <servers/bootstrap.h>
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56 // // send to already named port 56 // // send to already named port
57 // MachPortSender sender("com.Google.MyService"); 57 // MachPortSender sender("com.Google.MyService");
58 // MachSendMessage message(57); // our message ID is 57 58 // MachSendMessage message(57); // our message ID is 57
59 // 59 //
60 // // add some ports to be translated for us 60 // // add some ports to be translated for us
61 // message.AddDescriptor(mach_task_self()); // our task 61 // message.AddDescriptor(mach_task_self()); // our task
62 // message.AddDescriptor(mach_thread_self()); // this thread 62 // message.AddDescriptor(mach_thread_self()); // this thread
63 // 63 //
64 // char messageString[] = "Hello server!\n"; 64 // char messageString[] = "Hello server!\n";
65 // message.SetData(messageString, strlen(messageString)+1); 65 // message.SetData(messageString, strlen(messageString)+1);
66 // 66 // // timeout 1000ms
67 // kern_return_t result = sender.SendMessage(message, 1000); // timeout 1000m s 67 // kern_return_t result = sender.SendMessage(message, 1000);
68 // 68 //
69 69
70 #define PRINT_MACH_RESULT(result_, message_) \ 70 #define PRINT_MACH_RESULT(result_, message_) \
71 printf(message_" %s (%d)\n", mach_error_string(result_), result_ ); 71 printf(message_" %s (%d)\n", mach_error_string(result_), result_ );
72 72
73 //============================================================================== 73 //==============================================================================
74 // A wrapper class for mach_msg_port_descriptor_t (with same memory layout) 74 // A wrapper class for mach_msg_port_descriptor_t (with same memory layout)
75 // with convenient constructors and accessors 75 // with convenient constructors and accessors
76 class MachMsgPortDescriptor : public mach_msg_port_descriptor_t { 76 class MachMsgPortDescriptor : public mach_msg_port_descriptor_t {
77 public: 77 public:
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187 187
188 // Constructor for use with preallocate storage. 188 // Constructor for use with preallocate storage.
189 // storage_length must be >= EmptyMessageSize() 189 // storage_length must be >= EmptyMessageSize()
190 MachMessage(void *storage, size_t storage_length); 190 MachMessage(void *storage, size_t storage_length);
191 191
192 friend class ReceivePort; 192 friend class ReceivePort;
193 friend class MachPortSender; 193 friend class MachPortSender;
194 194
195 // Represents raw data in our message 195 // Represents raw data in our message
196 struct MessageDataPacket { 196 struct MessageDataPacket {
197 int32_t id; // little-endian 197 int32_t id; // little-endian
198 int32_t data_length;» // little-endian 198 int32_t data_length; // little-endian
199 u_int8_t data[1]; // actual size limited by storage_length_bytes_ 199 u_int8_t data[1]; // actual size limited by storage_length_bytes_
200 }; 200 };
201 201
202 MessageDataPacket* GetDataPacket(); 202 MessageDataPacket* GetDataPacket();
203 203
204 void SetDescriptorCount(int n); 204 void SetDescriptorCount(int n);
205 void SetDescriptor(int n, const MachMsgPortDescriptor &desc); 205 void SetDescriptor(int n, const MachMsgPortDescriptor &desc);
206 206
207 // Returns total message size setting msgh_size in the header to this value 207 // Returns total message size setting msgh_size in the header to this value
208 int CalculateSize(); 208 int CalculateSize();
209 209
210 // Returns total storage size that this object can grow to, this is inclusive 210 // Returns total storage size that this object can grow to, this is inclusive
211 // of the mach header. 211 // of the mach header.
212 size_t MaxSize() const { return storage_length_bytes_; } 212 size_t MaxSize() const { return storage_length_bytes_; }
213 213
214 protected: 214 protected:
215 mach_msg_header_t *Head() { return &(storage_->head); } 215 mach_msg_header_t *Head() { return &(storage_->head); }
216 216
217 private: 217 private:
218 struct MachMessageData { 218 struct MachMessageData {
219 mach_msg_header_t head; 219 mach_msg_header_t head;
220 mach_msg_body_t body; 220 mach_msg_body_t body;
221 // descriptors and data may be embedded here. 221 // descriptors and data may be embedded here.
222 u_int8_t padding[1024]; 222 u_int8_t padding[1024];
223 }; 223 };
224 224
225 // kEmptyMessageSize needs to have the definition of MachMessageData before it. NNN 225 // kEmptyMessageSize needs to have the definition of MachMessageData before
226 // it.
226 public: 227 public:
227 // The size of an empty message with no data. 228 // The size of an empty message with no data.
228 static const size_t kEmptyMessageSize = sizeof(mach_msg_header_t) + 229 static const size_t kEmptyMessageSize = sizeof(mach_msg_header_t) +
229 sizeof(mach_msg_body_t) + 230 sizeof(mach_msg_body_t) +
230 sizeof(MessageDataPacket); 231 sizeof(MessageDataPacket);
231 232
232 private: 233 private:
233 MachMessageData *storage_; 234 MachMessageData *storage_;
234 size_t storage_length_bytes_; 235 size_t storage_length_bytes_;
235 bool own_storage_; // Is storage owned by this object? 236 bool own_storage_; // Is storage owned by this object?
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310 mach_msg_timeout_t timeout); 311 mach_msg_timeout_t timeout);
311 312
312 private: 313 private:
313 mach_port_t send_port_; 314 mach_port_t send_port_;
314 kern_return_t init_result_; 315 kern_return_t init_result_;
315 316
316 DISALLOW_COPY_AND_ASSIGN(MachPortSender); 317 DISALLOW_COPY_AND_ASSIGN(MachPortSender);
317 }; 318 };
318 319
319 #endif // BASE_MACH_IPC_MAC_H_ 320 #endif // BASE_MACH_IPC_MAC_H_
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