Steve Block | a7e24c1 | 2009-10-30 11:49:00 +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 | // Platform specific code for POSIX goes here. This is not a platform on its |
| 29 | // own but contains the parts which are the same across POSIX platforms Linux, |
| 30 | // Mac OS and FreeBSD. |
| 31 | |
| 32 | #include <unistd.h> |
| 33 | #include <errno.h> |
| 34 | #include <time.h> |
| 35 | |
| 36 | #include <sys/socket.h> |
| 37 | #include <sys/resource.h> |
| 38 | #include <sys/time.h> |
| 39 | #include <sys/types.h> |
| 40 | |
| 41 | #include <arpa/inet.h> |
| 42 | #include <netinet/in.h> |
| 43 | #include <netdb.h> |
| 44 | |
| 45 | #if defined(ANDROID) |
| 46 | #define LOG_TAG "v8" |
| 47 | #include <utils/Log.h> // LOG_PRI_VA |
| 48 | #endif |
| 49 | |
| 50 | #include "v8.h" |
| 51 | |
| 52 | #include "platform.h" |
| 53 | |
| 54 | namespace v8 { |
| 55 | namespace internal { |
| 56 | |
| 57 | |
| 58 | // ---------------------------------------------------------------------------- |
| 59 | // POSIX date/time support. |
| 60 | // |
| 61 | |
| 62 | int OS::GetUserTime(uint32_t* secs, uint32_t* usecs) { |
| 63 | struct rusage usage; |
| 64 | |
| 65 | if (getrusage(RUSAGE_SELF, &usage) < 0) return -1; |
| 66 | *secs = usage.ru_utime.tv_sec; |
| 67 | *usecs = usage.ru_utime.tv_usec; |
| 68 | return 0; |
| 69 | } |
| 70 | |
| 71 | |
| 72 | double OS::TimeCurrentMillis() { |
| 73 | struct timeval tv; |
| 74 | if (gettimeofday(&tv, NULL) < 0) return 0.0; |
| 75 | return (static_cast<double>(tv.tv_sec) * 1000) + |
| 76 | (static_cast<double>(tv.tv_usec) / 1000); |
| 77 | } |
| 78 | |
| 79 | |
| 80 | int64_t OS::Ticks() { |
| 81 | // gettimeofday has microsecond resolution. |
| 82 | struct timeval tv; |
| 83 | if (gettimeofday(&tv, NULL) < 0) |
| 84 | return 0; |
| 85 | return (static_cast<int64_t>(tv.tv_sec) * 1000000) + tv.tv_usec; |
| 86 | } |
| 87 | |
| 88 | |
| 89 | const char* OS::LocalTimezone(double time) { |
| 90 | if (isnan(time)) return ""; |
| 91 | time_t tv = static_cast<time_t>(floor(time/msPerSecond)); |
| 92 | struct tm* t = localtime(&tv); |
| 93 | if (NULL == t) return ""; |
| 94 | return t->tm_zone; |
| 95 | } |
| 96 | |
| 97 | |
| 98 | double OS::DaylightSavingsOffset(double time) { |
| 99 | if (isnan(time)) return nan_value(); |
| 100 | time_t tv = static_cast<time_t>(floor(time/msPerSecond)); |
| 101 | struct tm* t = localtime(&tv); |
| 102 | if (NULL == t) return nan_value(); |
| 103 | return t->tm_isdst > 0 ? 3600 * msPerSecond : 0; |
| 104 | } |
| 105 | |
| 106 | |
| 107 | double OS::LocalTimeOffset() { |
| 108 | time_t tv = time(NULL); |
| 109 | struct tm* t = localtime(&tv); |
| 110 | // tm_gmtoff includes any daylight savings offset, so subtract it. |
| 111 | return static_cast<double>(t->tm_gmtoff * msPerSecond - |
| 112 | (t->tm_isdst > 0 ? 3600 * msPerSecond : 0)); |
| 113 | } |
| 114 | |
| 115 | |
| 116 | // ---------------------------------------------------------------------------- |
| 117 | // POSIX stdio support. |
| 118 | // |
| 119 | |
| 120 | FILE* OS::FOpen(const char* path, const char* mode) { |
| 121 | return fopen(path, mode); |
| 122 | } |
| 123 | |
| 124 | |
| 125 | const char* OS::LogFileOpenMode = "w"; |
| 126 | |
| 127 | |
| 128 | void OS::Print(const char* format, ...) { |
| 129 | va_list args; |
| 130 | va_start(args, format); |
| 131 | VPrint(format, args); |
| 132 | va_end(args); |
| 133 | } |
| 134 | |
| 135 | |
| 136 | void OS::VPrint(const char* format, va_list args) { |
| 137 | #if defined(ANDROID) |
| 138 | LOG_PRI_VA(ANDROID_LOG_INFO, LOG_TAG, format, args); |
| 139 | #else |
| 140 | vprintf(format, args); |
| 141 | #endif |
| 142 | } |
| 143 | |
| 144 | |
| 145 | void OS::PrintError(const char* format, ...) { |
| 146 | va_list args; |
| 147 | va_start(args, format); |
| 148 | VPrintError(format, args); |
| 149 | va_end(args); |
| 150 | } |
| 151 | |
| 152 | |
| 153 | void OS::VPrintError(const char* format, va_list args) { |
| 154 | #if defined(ANDROID) |
| 155 | LOG_PRI_VA(ANDROID_LOG_ERROR, LOG_TAG, format, args); |
| 156 | #else |
| 157 | vfprintf(stderr, format, args); |
| 158 | #endif |
| 159 | } |
| 160 | |
| 161 | |
| 162 | int OS::SNPrintF(Vector<char> str, const char* format, ...) { |
| 163 | va_list args; |
| 164 | va_start(args, format); |
| 165 | int result = VSNPrintF(str, format, args); |
| 166 | va_end(args); |
| 167 | return result; |
| 168 | } |
| 169 | |
| 170 | |
| 171 | int OS::VSNPrintF(Vector<char> str, |
| 172 | const char* format, |
| 173 | va_list args) { |
| 174 | int n = vsnprintf(str.start(), str.length(), format, args); |
| 175 | if (n < 0 || n >= str.length()) { |
| 176 | str[str.length() - 1] = '\0'; |
| 177 | return -1; |
| 178 | } else { |
| 179 | return n; |
| 180 | } |
| 181 | } |
| 182 | |
| 183 | |
| 184 | // ---------------------------------------------------------------------------- |
| 185 | // POSIX string support. |
| 186 | // |
| 187 | |
| 188 | char* OS::StrChr(char* str, int c) { |
| 189 | return strchr(str, c); |
| 190 | } |
| 191 | |
| 192 | |
| 193 | void OS::StrNCpy(Vector<char> dest, const char* src, size_t n) { |
| 194 | strncpy(dest.start(), src, n); |
| 195 | } |
| 196 | |
| 197 | |
| 198 | // ---------------------------------------------------------------------------- |
| 199 | // POSIX socket support. |
| 200 | // |
| 201 | |
| 202 | class POSIXSocket : public Socket { |
| 203 | public: |
| 204 | explicit POSIXSocket() { |
| 205 | // Create the socket. |
| 206 | socket_ = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); |
| 207 | } |
| 208 | explicit POSIXSocket(int socket): socket_(socket) { } |
| 209 | virtual ~POSIXSocket() { Shutdown(); } |
| 210 | |
| 211 | // Server initialization. |
| 212 | bool Bind(const int port); |
| 213 | bool Listen(int backlog) const; |
| 214 | Socket* Accept() const; |
| 215 | |
| 216 | // Client initialization. |
| 217 | bool Connect(const char* host, const char* port); |
| 218 | |
| 219 | // Shutdown socket for both read and write. |
| 220 | bool Shutdown(); |
| 221 | |
| 222 | // Data Transimission |
| 223 | int Send(const char* data, int len) const; |
| 224 | int Receive(char* data, int len) const; |
| 225 | |
| 226 | bool SetReuseAddress(bool reuse_address); |
| 227 | |
| 228 | bool IsValid() const { return socket_ != -1; } |
| 229 | |
| 230 | private: |
| 231 | int socket_; |
| 232 | }; |
| 233 | |
| 234 | |
| 235 | bool POSIXSocket::Bind(const int port) { |
| 236 | if (!IsValid()) { |
| 237 | return false; |
| 238 | } |
| 239 | |
| 240 | sockaddr_in addr; |
| 241 | memset(&addr, 0, sizeof(addr)); |
| 242 | addr.sin_family = AF_INET; |
| 243 | addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); |
| 244 | addr.sin_port = htons(port); |
| 245 | int status = bind(socket_, |
| 246 | reinterpret_cast<struct sockaddr *>(&addr), |
| 247 | sizeof(addr)); |
| 248 | return status == 0; |
| 249 | } |
| 250 | |
| 251 | |
| 252 | bool POSIXSocket::Listen(int backlog) const { |
| 253 | if (!IsValid()) { |
| 254 | return false; |
| 255 | } |
| 256 | |
| 257 | int status = listen(socket_, backlog); |
| 258 | return status == 0; |
| 259 | } |
| 260 | |
| 261 | |
| 262 | Socket* POSIXSocket::Accept() const { |
| 263 | if (!IsValid()) { |
| 264 | return NULL; |
| 265 | } |
| 266 | |
| 267 | int socket = accept(socket_, NULL, NULL); |
| 268 | if (socket == -1) { |
| 269 | return NULL; |
| 270 | } else { |
| 271 | return new POSIXSocket(socket); |
| 272 | } |
| 273 | } |
| 274 | |
| 275 | |
| 276 | bool POSIXSocket::Connect(const char* host, const char* port) { |
| 277 | if (!IsValid()) { |
| 278 | return false; |
| 279 | } |
| 280 | |
| 281 | // Lookup host and port. |
| 282 | struct addrinfo *result = NULL; |
| 283 | struct addrinfo hints; |
| 284 | memset(&hints, 0, sizeof(addrinfo)); |
| 285 | hints.ai_family = AF_INET; |
| 286 | hints.ai_socktype = SOCK_STREAM; |
| 287 | hints.ai_protocol = IPPROTO_TCP; |
| 288 | int status = getaddrinfo(host, port, &hints, &result); |
| 289 | if (status != 0) { |
| 290 | return false; |
| 291 | } |
| 292 | |
| 293 | // Connect. |
| 294 | status = connect(socket_, result->ai_addr, result->ai_addrlen); |
| 295 | freeaddrinfo(result); |
| 296 | return status == 0; |
| 297 | } |
| 298 | |
| 299 | |
| 300 | bool POSIXSocket::Shutdown() { |
| 301 | if (IsValid()) { |
| 302 | // Shutdown socket for both read and write. |
| 303 | int status = shutdown(socket_, SHUT_RDWR); |
| 304 | close(socket_); |
| 305 | socket_ = -1; |
| 306 | return status == 0; |
| 307 | } |
| 308 | return true; |
| 309 | } |
| 310 | |
| 311 | |
| 312 | int POSIXSocket::Send(const char* data, int len) const { |
| 313 | int status = send(socket_, data, len, 0); |
| 314 | return status; |
| 315 | } |
| 316 | |
| 317 | |
| 318 | int POSIXSocket::Receive(char* data, int len) const { |
| 319 | int status = recv(socket_, data, len, 0); |
| 320 | return status; |
| 321 | } |
| 322 | |
| 323 | |
| 324 | bool POSIXSocket::SetReuseAddress(bool reuse_address) { |
| 325 | int on = reuse_address ? 1 : 0; |
| 326 | int status = setsockopt(socket_, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)); |
| 327 | return status == 0; |
| 328 | } |
| 329 | |
| 330 | |
| 331 | bool Socket::Setup() { |
| 332 | // Nothing to do on POSIX. |
| 333 | return true; |
| 334 | } |
| 335 | |
| 336 | |
| 337 | int Socket::LastError() { |
| 338 | return errno; |
| 339 | } |
| 340 | |
| 341 | |
| 342 | uint16_t Socket::HToN(uint16_t value) { |
| 343 | return htons(value); |
| 344 | } |
| 345 | |
| 346 | |
| 347 | uint16_t Socket::NToH(uint16_t value) { |
| 348 | return ntohs(value); |
| 349 | } |
| 350 | |
| 351 | |
| 352 | uint32_t Socket::HToN(uint32_t value) { |
| 353 | return htonl(value); |
| 354 | } |
| 355 | |
| 356 | |
| 357 | uint32_t Socket::NToH(uint32_t value) { |
| 358 | return ntohl(value); |
| 359 | } |
| 360 | |
| 361 | |
| 362 | Socket* OS::CreateSocket() { |
| 363 | return new POSIXSocket(); |
| 364 | } |
| 365 | |
| 366 | |
| 367 | } } // namespace v8::internal |