Add libjingle to third_party

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Added from chromium src@52593

Change-Id: Ie0b1f600ed3a470f5d7eb4f939eba2f1d71e6fbe

1 files changed, 586 insertions, 0 deletions

diff --git a/third_party/libjingle/source/talk/base/logging.cc b/third_party/libjingle/source/talk/base/logging.cc
new file mode 100644
index 0000000..d632a2c
--- /dev/null
+++ b/third_party/libjingle/source/talk/base/logging.cc
@@ -0,0 +1,586 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#define snprintf _snprintf
+#undef ERROR  // wingdi.h
+#endif
+
+#ifdef OSX
+#include <CoreServices/CoreServices.h>
+#elif defined(ANDROID)
+#include <android/log.h>
+static const char kLibjingle[] = "libjingle";
+#endif  // OSX || ANDROID
+
+#include <iostream>
+#include <iomanip>
+#include <vector>
+
+#include "talk/base/logging.h"
+#include "talk/base/stream.h"
+#include "talk/base/stringencode.h"
+#include "talk/base/stringutils.h"
+#include "talk/base/time.h"
+
+namespace talk_base {
+
+/////////////////////////////////////////////////////////////////////////////
+// Constant Labels
+/////////////////////////////////////////////////////////////////////////////
+
+const char * FindLabel(int value, const ConstantLabel entries[]) {
+  for (int i = 0; entries[i].label; ++i) {
+    if (value == entries[i].value) {
+      return entries[i].label;
+    }
+  }
+  return 0;
+}
+
+std::string ErrorName(int err, const ConstantLabel * err_table) {
+  if (err == 0)
+    return "No error";
+
+  if (err_table != 0) {
+    if (const char * value = FindLabel(err, err_table))
+      return value;
+  }
+
+  char buffer[16];
+  snprintf(buffer, sizeof(buffer), "0x%08x", err);
+  return buffer;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// LogMessage
+/////////////////////////////////////////////////////////////////////////////
+
+const int LogMessage::NO_LOGGING = LS_ERROR + 1;
+
+#if _DEBUG
+static const int LOG_DEFAULT = LS_INFO;
+#else  // !_DEBUG
+static const int LOG_DEFAULT = LogMessage::NO_LOGGING;
+#endif  // !_DEBUG
+
+// Global lock for log subsystem, only needed to serialize access to streams_.
+CriticalSection LogMessage::crit_;
+
+// By default, release builds don't log, debug builds at info level
+int LogMessage::min_sev_ = LOG_DEFAULT;
+int LogMessage::dbg_sev_ = LOG_DEFAULT;
+
+// Don't bother printing context for the ubiquitous INFO log messages
+int LogMessage::ctx_sev_ = LS_WARNING;
+
+// The list of logging streams currently configured.
+// Note: we explicitly do not clean this up, because of the uncertain ordering
+// of destructors at program exit.  Let the person who sets the stream trigger
+// cleanup by setting to NULL, or let it leak (safe at program exit).
+LogMessage::StreamList LogMessage::streams_;
+
+// Boolean options default to false (0)
+bool LogMessage::thread_, LogMessage::timestamp_;
+
+// Program start time
+uint32 LogMessage::start_ = StartTime();
+
+// If we're in diagnostic mode, we'll be explicitly set that way; default=false.
+bool LogMessage::is_diagnostic_mode_ = false;
+
+LogMessage::LogMessage(const char* file, int line, LoggingSeverity sev,
+                       LogErrorContext err_ctx, int err, const char* module)
+    : severity_(sev) {
+  // Android's logging facility keeps track of timestamp and thread.
+#ifndef ANDROID
+  if (timestamp_) {
+    uint32 time = TimeSince(start_);
+    print_stream_ << "[" << std::setfill('0') << std::setw(3) << (time / 1000)
+                  << ":" << std::setw(3) << (time % 1000) << std::setfill(' ')
+                  << "] ";
+  }
+
+  if (thread_) {
+#ifdef WIN32
+    DWORD id = GetCurrentThreadId();
+    print_stream_ << "[" << std::hex << id << std::dec << "] ";
+#endif  // WIN32
+  }
+#endif  // !ANDROID
+
+  if (severity_ >= ctx_sev_) {
+    print_stream_ << Describe(sev) << "(" << DescribeFile(file)
+                  << ":" << line << "): ";
+  }
+
+  if (err_ctx != ERRCTX_NONE) {
+    std::ostringstream tmp;
+    tmp << "[0x" << std::setfill('0') << std::hex << std::setw(8) << err << "]";
+    switch (err_ctx) {
+      case ERRCTX_ERRNO:
+        tmp << " " << strerror(err);
+        break;
+#if WIN32
+      case ERRCTX_HRESULT: {
+        char msgbuf[256];
+        DWORD flags = FORMAT_MESSAGE_FROM_SYSTEM;
+        HMODULE hmod = GetModuleHandleA(module);
+        if (hmod)
+          flags |= FORMAT_MESSAGE_FROM_HMODULE;
+        if (DWORD len = FormatMessageA(
+            flags, hmod, err,
+            MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+            msgbuf, sizeof(msgbuf) / sizeof(msgbuf[0]), NULL)) {
+          while ((len > 0) &&
+              isspace(static_cast<unsigned char>(msgbuf[len-1]))) {
+            msgbuf[--len] = 0;
+          }
+          tmp << " " << msgbuf;
+        }
+        break;
+      }
+#endif  // WIN32
+#if OSX
+      case ERRCTX_OSSTATUS: {
+        tmp << " " << nonnull(GetMacOSStatusErrorString(err), "Unknown error");
+        if (const char* desc = GetMacOSStatusCommentString(err)) {
+          tmp << ": " << desc;
+        }
+        break;
+      }
+#endif  // OSX
+      default:
+        break;
+    }
+    extra_ = tmp.str();
+  }
+}
+
+LogMessage::~LogMessage() {
+  if (!extra_.empty())
+    print_stream_ << " : " << extra_;
+  print_stream_ << std::endl;
+
+  const std::string& str = print_stream_.str();
+  if (severity_ >= dbg_sev_) {
+    OutputToDebug(str, severity_);
+  }
+
+  // Must lock streams_ before accessing
+  CritScope cs(&crit_);
+  for (StreamList::iterator it = streams_.begin(); it != streams_.end(); ++it) {
+    if (severity_ >= it->second) {
+      OutputToStream(it->first, str);
+    }
+  }
+}
+
+void LogMessage::LogContext(int min_sev) {
+  ctx_sev_ = min_sev;
+}
+
+void LogMessage::LogThreads(bool on) {
+  thread_ = on;
+}
+
+void LogMessage::LogTimestamps(bool on) {
+  timestamp_ = on;
+}
+
+void LogMessage::ResetTimestamps() {
+  start_ = Time();
+}
+
+void LogMessage::LogToDebug(int min_sev) {
+  dbg_sev_ = min_sev;
+  UpdateMinLogSeverity();
+}
+
+void LogMessage::LogToStream(StreamInterface* stream, int min_sev) {
+  CritScope cs(&crit_);
+  // Discard and delete all previously installed streams
+  for (StreamList::iterator it = streams_.begin(); it != streams_.end(); ++it) {
+    delete it->first;
+  }
+  streams_.clear();
+  // Install the new stream, if specified
+  if (stream) {
+    AddLogToStream(stream, min_sev);
+  }
+}
+
+int LogMessage::GetLogToStream(StreamInterface* stream) {
+  CritScope cs(&crit_);
+  int sev = NO_LOGGING;
+  for (StreamList::iterator it = streams_.begin(); it != streams_.end(); ++it) {
+    if (!stream || stream == it->first) {
+      sev = _min(sev, it->second);
+    }
+  }
+  return sev;
+}
+
+void LogMessage::AddLogToStream(StreamInterface* stream, int min_sev) {
+  CritScope cs(&crit_);
+  streams_.push_back(std::make_pair(stream, min_sev));
+  UpdateMinLogSeverity();
+}
+
+void LogMessage::RemoveLogToStream(StreamInterface* stream) {
+  CritScope cs(&crit_);
+  for (StreamList::iterator it = streams_.begin(); it != streams_.end(); ++it) {
+    if (stream == it->first) {
+      streams_.erase(it);
+      break;
+    }
+  }
+  UpdateMinLogSeverity();
+}
+
+void LogMessage::ConfigureLogging(const char* params, const char* filename) {
+  int current_level = LS_VERBOSE;
+  int debug_level = GetLogToDebug();
+  int file_level = GetLogToStream();
+
+  std::vector<std::string> tokens;
+  split(params, ' ', &tokens);
+
+  for (size_t i = 0; i < tokens.size(); ++i) {
+    if (tokens[i].empty())
+      continue;
+
+    // Logging features
+    if (tokens[i] == "tstamp") {
+      LogTimestamps();
+    } else if (tokens[i] == "thread") {
+      LogThreads();
+
+    // Logging levels
+    } else if (tokens[i] == "sensitive") {
+      current_level = LS_SENSITIVE;
+    } else if (tokens[i] == "verbose") {
+      current_level = LS_VERBOSE;
+    } else if (tokens[i] == "info") {
+      current_level = LS_INFO;
+    } else if (tokens[i] == "warning") {
+      current_level = LS_WARNING;
+    } else if (tokens[i] == "error") {
+      current_level = LS_ERROR;
+    } else if (tokens[i] == "none") {
+      current_level = NO_LOGGING;
+
+    // Logging targets
+    } else if (tokens[i] == "file") {
+      file_level = current_level;
+    } else if (tokens[i] == "debug") {
+      debug_level = current_level;
+    }
+  }
+
+#ifdef WIN32
+  if ((NO_LOGGING != debug_level) && !::IsDebuggerPresent()) {
+    // First, attempt to attach to our parent's console... so if you invoke
+    // from the command line, we'll see the output there.  Otherwise, create
+    // our own console window.
+    // Note: These methods fail if a console already exists, which is fine.
+    bool success = false;
+    typedef BOOL (WINAPI* PFN_AttachConsole)(DWORD);
+    if (HINSTANCE kernel32 = ::LoadLibrary(L"kernel32.dll")) {
+      // AttachConsole is defined on WinXP+.
+      if (PFN_AttachConsole attach_console = reinterpret_cast<PFN_AttachConsole>
+            (::GetProcAddress(kernel32, "AttachConsole"))) {
+        success = (FALSE != attach_console(ATTACH_PARENT_PROCESS));
+      }
+      ::FreeLibrary(kernel32);
+    }
+    if (!success) {
+      ::AllocConsole();
+    }
+  }
+#endif  // WIN32
+
+  scoped_ptr<FileStream> stream;
+  if (NO_LOGGING != file_level) {
+    stream.reset(new FileStream);
+    if (!stream->Open(filename, "wb") || !stream->DisableBuffering()) {
+      stream.reset();
+    }
+  }
+
+  LogToDebug(debug_level);
+  LogToStream(stream.release(), file_level);
+}
+
+int LogMessage::ParseLogSeverity(const std::string& value) {
+  int level = NO_LOGGING;
+  if (value == "LS_SENSITIVE") {
+    level = LS_SENSITIVE;
+  } else if (value == "LS_VERBOSE") {
+    level = LS_VERBOSE;
+  } else if (value == "LS_INFO") {
+    level = LS_INFO;
+  } else if (value == "LS_WARNING") {
+    level = LS_WARNING;
+  } else if (value == "LS_ERROR") {
+    level = LS_ERROR;
+  } else if (isdigit(value[0])) {
+    level = atoi(value.c_str());  // NOLINT
+  }
+  return level;
+}
+
+void LogMessage::UpdateMinLogSeverity() {
+  int min_sev = dbg_sev_;
+  for (StreamList::iterator it = streams_.begin(); it != streams_.end(); ++it) {
+    min_sev = _min(dbg_sev_, it->second);
+  }
+  min_sev_ = min_sev;
+}
+
+const char* LogMessage::Describe(LoggingSeverity sev) {
+  switch (sev) {
+  case LS_SENSITIVE: return "Sensitive";
+  case LS_VERBOSE:   return "Verbose";
+  case LS_INFO:      return "Info";
+  case LS_WARNING:   return "Warning";
+  case LS_ERROR:     return "Error";
+  default:           return "<unknown>";
+  }
+}
+
+const char* LogMessage::DescribeFile(const char* file) {
+  const char* end1 = ::strrchr(file, '/');
+  const char* end2 = ::strrchr(file, '\\');
+  if (!end1 && !end2)
+    return file;
+  else
+    return (end1 > end2) ? end1 + 1 : end2 + 1;
+}
+
+void LogMessage::OutputToDebug(const std::string& str,
+                               LoggingSeverity severity) {
+  bool log_to_stderr = true;
+#if defined(OSX) && (!defined(DEBUG) || defined(NDEBUG))
+  // On the Mac, all stderr output goes to the Console log and causes clutter.
+  // So in opt builds, don't log to stderr unless the user specifically sets
+  // a preference to do so.
+  CFStringRef key = CFStringCreateWithCString(kCFAllocatorDefault,
+                                              "logToStdErr",
+                                              kCFStringEncodingUTF8);
+  CFStringRef domain = CFBundleGetIdentifier(CFBundleGetMainBundle());
+  if (key != NULL && domain != NULL) {
+    Boolean exists_and_is_valid;
+    Boolean should_log =
+        CFPreferencesGetAppBooleanValue(key, domain, &exists_and_is_valid);
+    // If the key doesn't exist or is invalid or is false, we will not log to
+    // stderr.
+    log_to_stderr = exists_and_is_valid && should_log;
+  }
+  if (key != NULL) {
+    CFRelease(key);
+  }
+#endif
+#ifdef WIN32
+  // Always log to the debugger.
+  // Perhaps stderr should be controlled by a preference, as on Mac?
+  OutputDebugStringA(str.c_str());
+  if (log_to_stderr) {
+    // This handles dynamically allocated consoles, too.
+    if (HANDLE error_handle = ::GetStdHandle(STD_ERROR_HANDLE)) {
+      log_to_stderr = false;
+      unsigned long written;  // NOLINT
+      ::WriteFile(error_handle, str.data(), str.size(), &written, 0);
+    }
+  }
+#endif  // WIN32
+#ifdef ANDROID
+  // Android's logging facility uses severity to log messages but we
+  // need to map libjingle's severity levels to Android ones first.
+  // Also write to stderr which maybe available to executable started
+  // from the shell.
+  int prio;
+  switch (severity) {
+    case LS_SENSITIVE:
+      __android_log_write(ANDROID_LOG_INFO, kLibjingle, "SENSITIVE");
+      return;
+    case LS_VERBOSE:
+      prio = ANDROID_LOG_VERBOSE;
+      break;
+    case LS_INFO:
+      prio = ANDROID_LOG_INFO;
+      break;
+    case LS_WARNING:
+      prio = ANDROID_LOG_WARN;
+      break;
+    case LS_ERROR:
+      prio = ANDROID_LOG_ERROR;
+      break;
+    default:
+      prio = ANDROID_LOG_UNKNOWN;
+  }
+  // Use the size of the string in the format (str may have \0 in the middle).
+  __android_log_print(prio, kLibjingle, "%.*s", str.size(), str.c_str());
+#endif  // ANDROID
+  if (log_to_stderr) {
+    std::cerr << str;
+    std::cerr.flush();
+  }
+}
+
+void LogMessage::OutputToStream(StreamInterface* stream,
+                                const std::string& str) {
+  // If write isn't fully successful, what are we going to do, log it? :)
+  stream->WriteAll(str.data(), str.size(), NULL, NULL);
+}
+
+//////////////////////////////////////////////////////////////////////
+// Logging Helpers
+//////////////////////////////////////////////////////////////////////
+
+void LogMultiline(LoggingSeverity level, const char* label, bool input,
+                  const void* data, size_t len, bool hex_mode,
+                  LogMultilineState* state) {
+  if (!LOG_CHECK_LEVEL_V(level))
+    return;
+
+  const char * direction = (input ? " << " : " >> ");
+
+  // NULL data means to flush our count of unprintable characters.
+  if (!data) {
+    if (state && state->unprintable_count_[input]) {
+      LOG_V(level) << label << direction << "## "
+                   << state->unprintable_count_[input]
+                   << " consecutive unprintable ##";
+      state->unprintable_count_[input] = 0;
+    }
+    return;
+  }
+
+  // The ctype classification functions want unsigned chars.
+  const unsigned char* udata = static_cast<const unsigned char*>(data);
+
+  if (hex_mode) {
+    const size_t LINE_SIZE = 24;
+    char hex_line[LINE_SIZE * 9 / 4 + 2], asc_line[LINE_SIZE + 1];
+    while (len > 0) {
+      memset(asc_line, ' ', sizeof(asc_line));
+      memset(hex_line, ' ', sizeof(hex_line));
+      size_t line_len = _min(len, LINE_SIZE);
+      for (size_t i = 0; i < line_len; ++i) {
+        unsigned char ch = udata[i];
+        asc_line[i] = isprint(ch) ? ch : '.';
+        hex_line[i*2 + i/4] = hex_encode(ch >> 4);
+        hex_line[i*2 + i/4 + 1] = hex_encode(ch & 0xf);
+      }
+      asc_line[sizeof(asc_line)-1] = 0;
+      hex_line[sizeof(hex_line)-1] = 0;
+      LOG_V(level) << label << direction
+                   << asc_line << " " << hex_line << " ";
+      udata += line_len;
+      len -= line_len;
+    }
+    return;
+  }
+
+  size_t consecutive_unprintable = state ? state->unprintable_count_[input] : 0;
+
+  const unsigned char* end = udata + len;
+  while (udata < end) {
+    const unsigned char* line = udata;
+    const unsigned char* end_of_line = strchrn<unsigned char>(udata,
+                                                              end - udata,
+                                                              '\n');
+    if (!end_of_line) {
+      udata = end_of_line = end;
+    } else {
+      udata = end_of_line + 1;
+    }
+
+    bool is_printable = true;
+
+    // If we are in unprintable mode, we need to see a line of at least
+    // kMinPrintableLine characters before we'll switch back.
+    const ptrdiff_t kMinPrintableLine = 4;
+    if (consecutive_unprintable && ((end_of_line - line) < kMinPrintableLine)) {
+      is_printable = false;
+    } else {
+      // Determine if the line contains only whitespace and printable
+      // characters.
+      bool is_entirely_whitespace = true;
+      for (const unsigned char* pos = line; pos < end_of_line; ++pos) {
+        if (isspace(*pos))
+          continue;
+        is_entirely_whitespace = false;
+        if (!isprint(*pos)) {
+          is_printable = false;
+          break;
+        }
+      }
+      // Treat an empty line following unprintable data as unprintable.
+      if (consecutive_unprintable && is_entirely_whitespace) {
+        is_printable = false;
+      }
+    }
+    if (!is_printable) {
+      consecutive_unprintable += (udata - line);
+      continue;
+    }
+    // Print out the current line, but prefix with a count of prior unprintable
+    // characters.
+    if (consecutive_unprintable) {
+      LOG_V(level) << label << direction << "## " << consecutive_unprintable
+                  << " consecutive unprintable ##";
+      consecutive_unprintable = 0;
+    }
+    // Strip off trailing whitespace.
+    while ((end_of_line > line) && isspace(*(end_of_line-1))) {
+      --end_of_line;
+    }
+    // Filter out any private data
+    std::string substr(reinterpret_cast<const char*>(line), end_of_line - line);
+    std::string::size_type pos_private = substr.find("Email");
+    if (pos_private == std::string::npos) {
+      pos_private = substr.find("Passwd");
+    }
+    if (pos_private == std::string::npos) {
+      LOG_V(level) << label << direction << substr;
+    } else {
+      LOG_V(level) << label << direction << "## omitted for privacy ##";
+    }
+  }
+
+  if (state) {
+    state->unprintable_count_[input] = consecutive_unprintable;
+  }
+}
+
+//////////////////////////////////////////////////////////////////////
+
+}  // namespace talk_base