kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1 | // Copyright 2009 the V8 project authors. All rights reserved. |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | |
| 29 | #include "v8.h" |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 30 | #include "debug.h" |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 31 | #include "debug-agent.h" |
| 32 | |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 33 | #ifdef ENABLE_DEBUGGER_SUPPORT |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 34 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 35 | namespace v8 { |
| 36 | namespace internal { |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 37 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 38 | // Public V8 debugger API message handler function. This function just delegates |
| 39 | // to the debugger agent through it's data parameter. |
ager@chromium.org | 5ec4892 | 2009-05-05 07:25:34 +0000 | [diff] [blame] | 40 | void DebuggerAgentMessageHandler(const v8::Debug::Message& message) { |
| 41 | DebuggerAgent::instance_->DebuggerMessage(message); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 42 | } |
| 43 | |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 44 | // static |
| 45 | DebuggerAgent* DebuggerAgent::instance_ = NULL; |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 46 | |
| 47 | // Debugger agent main thread. |
| 48 | void DebuggerAgent::Run() { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 49 | const int kOneSecondInMicros = 1000000; |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 50 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 51 | // Allow this socket to reuse port even if still in TIME_WAIT. |
| 52 | server_->SetReuseAddress(true); |
| 53 | |
| 54 | // First bind the socket to the requested port. |
| 55 | bool bound = false; |
| 56 | while (!bound && !terminate_) { |
| 57 | bound = server_->Bind(port_); |
| 58 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 59 | // If an error occurred wait a bit before retrying. The most common error |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 60 | // would be that the port is already in use so this avoids a busy loop and |
| 61 | // make the agent take over the port when it becomes free. |
| 62 | if (!bound) { |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 63 | PrintF("Failed to open socket on port %d, " |
| 64 | "waiting %d ms before retrying\n", port_, kOneSecondInMicros / 1000); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 65 | terminate_now_->Wait(kOneSecondInMicros); |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | // Accept connections on the bound port. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 70 | while (!terminate_) { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 71 | bool ok = server_->Listen(1); |
sgjesse@chromium.org | c514574 | 2009-10-07 09:00:33 +0000 | [diff] [blame] | 72 | listening_->Signal(); |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 73 | if (ok) { |
| 74 | // Accept the new connection. |
| 75 | Socket* client = server_->Accept(); |
| 76 | ok = client != NULL; |
| 77 | if (ok) { |
| 78 | // Create and start a new session. |
| 79 | CreateSession(client); |
| 80 | } |
| 81 | } |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 82 | } |
| 83 | } |
| 84 | |
| 85 | |
| 86 | void DebuggerAgent::Shutdown() { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 87 | // Set the termination flag. |
| 88 | terminate_ = true; |
| 89 | |
| 90 | // Signal termination and make the server exit either its listen call or its |
| 91 | // binding loop. This makes sure that no new sessions can be established. |
| 92 | terminate_now_->Signal(); |
| 93 | server_->Shutdown(); |
| 94 | Join(); |
| 95 | |
| 96 | // Close existing session if any. |
| 97 | CloseSession(); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 98 | } |
| 99 | |
| 100 | |
sgjesse@chromium.org | c514574 | 2009-10-07 09:00:33 +0000 | [diff] [blame] | 101 | void DebuggerAgent::WaitUntilListening() { |
| 102 | listening_->Wait(); |
| 103 | } |
| 104 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 105 | void DebuggerAgent::CreateSession(Socket* client) { |
| 106 | ScopedLock with(session_access_); |
| 107 | |
| 108 | // If another session is already established terminate this one. |
| 109 | if (session_ != NULL) { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 110 | static const char* message = "Remote debugging session already active\r\n"; |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 111 | |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 112 | client->Send(message, StrLength(message)); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 113 | delete client; |
| 114 | return; |
| 115 | } |
| 116 | |
| 117 | // Create a new session and hook up the debug message handler. |
| 118 | session_ = new DebuggerAgentSession(this, client); |
ager@chromium.org | 5ec4892 | 2009-05-05 07:25:34 +0000 | [diff] [blame] | 119 | v8::Debug::SetMessageHandler2(DebuggerAgentMessageHandler); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 120 | session_->Start(); |
| 121 | } |
| 122 | |
| 123 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 124 | void DebuggerAgent::CloseSession() { |
| 125 | ScopedLock with(session_access_); |
| 126 | |
| 127 | // Terminate the session. |
| 128 | if (session_ != NULL) { |
| 129 | session_->Shutdown(); |
| 130 | session_->Join(); |
| 131 | delete session_; |
| 132 | session_ = NULL; |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | |
ager@chromium.org | 5ec4892 | 2009-05-05 07:25:34 +0000 | [diff] [blame] | 137 | void DebuggerAgent::DebuggerMessage(const v8::Debug::Message& message) { |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 138 | ScopedLock with(session_access_); |
| 139 | |
| 140 | // Forward the message handling to the session. |
| 141 | if (session_ != NULL) { |
ager@chromium.org | 5ec4892 | 2009-05-05 07:25:34 +0000 | [diff] [blame] | 142 | v8::String::Value val(message.GetJSON()); |
| 143 | session_->DebuggerMessage(Vector<uint16_t>(const_cast<uint16_t*>(*val), |
| 144 | val.length())); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 145 | } |
| 146 | } |
| 147 | |
| 148 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 149 | void DebuggerAgent::OnSessionClosed(DebuggerAgentSession* session) { |
| 150 | // Don't do anything during termination. |
| 151 | if (terminate_) { |
| 152 | return; |
| 153 | } |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 154 | |
| 155 | // Terminate the session. |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 156 | ScopedLock with(session_access_); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 157 | ASSERT(session == session_); |
| 158 | if (session == session_) { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 159 | CloseSession(); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 160 | } |
| 161 | } |
| 162 | |
| 163 | |
| 164 | void DebuggerAgentSession::Run() { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 165 | // Send the hello message. |
| 166 | bool ok = DebuggerAgentUtil::SendConnectMessage(client_, *agent_->name_); |
| 167 | if (!ok) return; |
| 168 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 169 | while (true) { |
| 170 | // Read data from the debugger front end. |
| 171 | SmartPointer<char> message = DebuggerAgentUtil::ReceiveMessage(client_); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 172 | |
| 173 | const char* msg = *message; |
| 174 | bool is_closing_session = (msg == NULL); |
| 175 | |
| 176 | if (msg == NULL) { |
| 177 | // If we lost the connection, then simulate a disconnect msg: |
| 178 | msg = "{\"seq\":1,\"type\":\"request\",\"command\":\"disconnect\"}"; |
| 179 | |
| 180 | } else { |
| 181 | // Check if we're getting a disconnect request: |
| 182 | const char* disconnectRequestStr = |
| 183 | "\"type\":\"request\",\"command\":\"disconnect\"}"; |
| 184 | const char* result = strstr(msg, disconnectRequestStr); |
| 185 | if (result != NULL) { |
| 186 | is_closing_session = true; |
| 187 | } |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 188 | } |
| 189 | |
| 190 | // Convert UTF-8 to UTF-16. |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 191 | unibrow::Utf8InputBuffer<> buf(msg, StrLength(msg)); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 192 | int len = 0; |
| 193 | while (buf.has_more()) { |
| 194 | buf.GetNext(); |
| 195 | len++; |
| 196 | } |
sgjesse@chromium.org | 720dc0b | 2010-05-10 09:25:39 +0000 | [diff] [blame] | 197 | ScopedVector<int16_t> temp(len + 1); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 198 | buf.Reset(msg, StrLength(msg)); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 199 | for (int i = 0; i < len; i++) { |
| 200 | temp[i] = buf.GetNext(); |
| 201 | } |
| 202 | |
| 203 | // Send the request received to the debugger. |
sgjesse@chromium.org | 720dc0b | 2010-05-10 09:25:39 +0000 | [diff] [blame] | 204 | v8::Debug::SendCommand(reinterpret_cast<const uint16_t *>(temp.start()), |
| 205 | len); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 206 | |
| 207 | if (is_closing_session) { |
| 208 | // Session is closed. |
| 209 | agent_->OnSessionClosed(this); |
| 210 | return; |
| 211 | } |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 212 | } |
| 213 | } |
| 214 | |
| 215 | |
| 216 | void DebuggerAgentSession::DebuggerMessage(Vector<uint16_t> message) { |
| 217 | DebuggerAgentUtil::SendMessage(client_, message); |
| 218 | } |
| 219 | |
| 220 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 221 | void DebuggerAgentSession::Shutdown() { |
| 222 | // Shutdown the socket to end the blocking receive. |
| 223 | client_->Shutdown(); |
| 224 | } |
| 225 | |
| 226 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 227 | const char* DebuggerAgentUtil::kContentLength = "Content-Length"; |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 228 | int DebuggerAgentUtil::kContentLengthSize = |
| 229 | StrLength(kContentLength); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 230 | |
| 231 | |
| 232 | SmartPointer<char> DebuggerAgentUtil::ReceiveMessage(const Socket* conn) { |
| 233 | int received; |
| 234 | |
| 235 | // Read header. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 236 | int content_length = 0; |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 237 | while (true) { |
| 238 | const int kHeaderBufferSize = 80; |
| 239 | char header_buffer[kHeaderBufferSize]; |
| 240 | int header_buffer_position = 0; |
| 241 | char c = '\0'; // One character receive buffer. |
| 242 | char prev_c = '\0'; // Previous character. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 243 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 244 | // Read until CRLF. |
| 245 | while (!(c == '\n' && prev_c == '\r')) { |
| 246 | prev_c = c; |
| 247 | received = conn->Receive(&c, 1); |
| 248 | if (received <= 0) { |
| 249 | PrintF("Error %d\n", Socket::LastError()); |
| 250 | return SmartPointer<char>(); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 251 | } |
| 252 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 253 | // Add character to header buffer. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 254 | if (header_buffer_position < kHeaderBufferSize) { |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 255 | header_buffer[header_buffer_position++] = c; |
| 256 | } |
| 257 | } |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 258 | |
| 259 | // Check for end of header (empty header line). |
| 260 | if (header_buffer_position == 2) { // Receive buffer contains CRLF. |
| 261 | break; |
| 262 | } |
| 263 | |
| 264 | // Terminate header. |
| 265 | ASSERT(header_buffer_position > 1); // At least CRLF is received. |
| 266 | ASSERT(header_buffer_position <= kHeaderBufferSize); |
| 267 | header_buffer[header_buffer_position - 2] = '\0'; |
| 268 | |
| 269 | // Split header. |
| 270 | char* key = header_buffer; |
| 271 | char* value = NULL; |
| 272 | for (int i = 0; header_buffer[i] != '\0'; i++) { |
| 273 | if (header_buffer[i] == ':') { |
| 274 | header_buffer[i] = '\0'; |
| 275 | value = header_buffer + i + 1; |
| 276 | while (*value == ' ') { |
| 277 | value++; |
| 278 | } |
| 279 | break; |
| 280 | } |
| 281 | } |
| 282 | |
| 283 | // Check that key is Content-Length. |
| 284 | if (strcmp(key, kContentLength) == 0) { |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 285 | // Get the content length value if present and within a sensible range. |
| 286 | if (value == NULL || strlen(value) > 7) { |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 287 | return SmartPointer<char>(); |
| 288 | } |
| 289 | for (int i = 0; value[i] != '\0'; i++) { |
| 290 | // Bail out if illegal data. |
| 291 | if (value[i] < '0' || value[i] > '9') { |
| 292 | return SmartPointer<char>(); |
| 293 | } |
| 294 | content_length = 10 * content_length + (value[i] - '0'); |
| 295 | } |
| 296 | } else { |
| 297 | // For now just print all other headers than Content-Length. |
| 298 | PrintF("%s: %s\n", key, value != NULL ? value : "(no value)"); |
| 299 | } |
| 300 | } |
| 301 | |
| 302 | // Return now if no body. |
| 303 | if (content_length == 0) { |
| 304 | return SmartPointer<char>(); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 305 | } |
| 306 | |
| 307 | // Read body. |
| 308 | char* buffer = NewArray<char>(content_length + 1); |
| 309 | received = ReceiveAll(conn, buffer, content_length); |
| 310 | if (received < content_length) { |
| 311 | PrintF("Error %d\n", Socket::LastError()); |
| 312 | return SmartPointer<char>(); |
| 313 | } |
| 314 | buffer[content_length] = '\0'; |
| 315 | |
| 316 | return SmartPointer<char>(buffer); |
| 317 | } |
| 318 | |
| 319 | |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 320 | bool DebuggerAgentUtil::SendConnectMessage(const Socket* conn, |
| 321 | const char* embedding_host) { |
| 322 | static const int kBufferSize = 80; |
| 323 | char buffer[kBufferSize]; // Sending buffer. |
| 324 | bool ok; |
| 325 | int len; |
| 326 | |
| 327 | // Send the header. |
| 328 | len = OS::SNPrintF(Vector<char>(buffer, kBufferSize), |
| 329 | "Type: connect\r\n"); |
| 330 | ok = conn->Send(buffer, len); |
| 331 | if (!ok) return false; |
| 332 | |
| 333 | len = OS::SNPrintF(Vector<char>(buffer, kBufferSize), |
| 334 | "V8-Version: %s\r\n", v8::V8::GetVersion()); |
| 335 | ok = conn->Send(buffer, len); |
| 336 | if (!ok) return false; |
| 337 | |
| 338 | len = OS::SNPrintF(Vector<char>(buffer, kBufferSize), |
| 339 | "Protocol-Version: 1\r\n"); |
| 340 | ok = conn->Send(buffer, len); |
| 341 | if (!ok) return false; |
| 342 | |
| 343 | if (embedding_host != NULL) { |
| 344 | len = OS::SNPrintF(Vector<char>(buffer, kBufferSize), |
| 345 | "Embedding-Host: %s\r\n", embedding_host); |
| 346 | ok = conn->Send(buffer, len); |
| 347 | if (!ok) return false; |
| 348 | } |
| 349 | |
| 350 | len = OS::SNPrintF(Vector<char>(buffer, kBufferSize), |
| 351 | "%s: 0\r\n", kContentLength); |
| 352 | ok = conn->Send(buffer, len); |
| 353 | if (!ok) return false; |
| 354 | |
| 355 | // Terminate header with empty line. |
| 356 | len = OS::SNPrintF(Vector<char>(buffer, kBufferSize), "\r\n"); |
| 357 | ok = conn->Send(buffer, len); |
| 358 | if (!ok) return false; |
| 359 | |
| 360 | // No body for connect message. |
| 361 | |
| 362 | return true; |
| 363 | } |
| 364 | |
| 365 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 366 | bool DebuggerAgentUtil::SendMessage(const Socket* conn, |
| 367 | const Vector<uint16_t> message) { |
| 368 | static const int kBufferSize = 80; |
| 369 | char buffer[kBufferSize]; // Sending buffer both for header and body. |
| 370 | |
| 371 | // Calculate the message size in UTF-8 encoding. |
| 372 | int utf8_len = 0; |
| 373 | for (int i = 0; i < message.length(); i++) { |
| 374 | utf8_len += unibrow::Utf8::Length(message[i]); |
| 375 | } |
| 376 | |
| 377 | // Send the header. |
| 378 | int len; |
| 379 | len = OS::SNPrintF(Vector<char>(buffer, kBufferSize), |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 380 | "%s: %d\r\n", kContentLength, utf8_len); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 381 | conn->Send(buffer, len); |
| 382 | |
| 383 | // Terminate header with empty line. |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 384 | len = OS::SNPrintF(Vector<char>(buffer, kBufferSize), "\r\n"); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 385 | conn->Send(buffer, len); |
| 386 | |
| 387 | // Send message body as UTF-8. |
| 388 | int buffer_position = 0; // Current buffer position. |
| 389 | for (int i = 0; i < message.length(); i++) { |
| 390 | // Write next UTF-8 encoded character to buffer. |
| 391 | buffer_position += |
| 392 | unibrow::Utf8::Encode(buffer + buffer_position, message[i]); |
| 393 | ASSERT(buffer_position < kBufferSize); |
| 394 | |
| 395 | // Send buffer if full or last character is encoded. |
| 396 | if (kBufferSize - buffer_position < 3 || i == message.length() - 1) { |
| 397 | conn->Send(buffer, buffer_position); |
| 398 | buffer_position = 0; |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | return true; |
| 403 | } |
| 404 | |
| 405 | |
| 406 | bool DebuggerAgentUtil::SendMessage(const Socket* conn, |
| 407 | const v8::Handle<v8::String> request) { |
| 408 | static const int kBufferSize = 80; |
| 409 | char buffer[kBufferSize]; // Sending buffer both for header and body. |
| 410 | |
| 411 | // Convert the request to UTF-8 encoding. |
| 412 | v8::String::Utf8Value utf8_request(request); |
| 413 | |
| 414 | // Send the header. |
| 415 | int len; |
| 416 | len = OS::SNPrintF(Vector<char>(buffer, kBufferSize), |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 417 | "Content-Length: %d\r\n", utf8_request.length()); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 418 | conn->Send(buffer, len); |
| 419 | |
| 420 | // Terminate header with empty line. |
ager@chromium.org | bb29dc9 | 2009-03-24 13:25:23 +0000 | [diff] [blame] | 421 | len = OS::SNPrintF(Vector<char>(buffer, kBufferSize), "\r\n"); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 422 | conn->Send(buffer, len); |
| 423 | |
| 424 | // Send message body as UTF-8. |
| 425 | conn->Send(*utf8_request, utf8_request.length()); |
| 426 | |
| 427 | return true; |
| 428 | } |
| 429 | |
| 430 | |
| 431 | // Receive the full buffer before returning unless an error occours. |
| 432 | int DebuggerAgentUtil::ReceiveAll(const Socket* conn, char* data, int len) { |
| 433 | int total_received = 0; |
| 434 | while (total_received < len) { |
| 435 | int received = conn->Receive(data + total_received, len - total_received); |
| 436 | if (received <= 0) { |
| 437 | return total_received; |
| 438 | } |
| 439 | total_received += received; |
| 440 | } |
| 441 | return total_received; |
| 442 | } |
| 443 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 444 | } } // namespace v8::internal |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 445 | |
| 446 | #endif // ENABLE_DEBUGGER_SUPPORT |