Keep only base/extractor.[cc|h].

base/logging/logging.h

Index: base/logging/logging.h
diff --git a/base/logging/logging.h b/base/logging/logging.h
deleted file mode 100644
index 40085610cafae89aba9616fe5ee325a8cc851f1a..0000000000000000000000000000000000000000
--- a/base/logging/logging.h
+++ /dev/null
@@ -1,499 +0,0 @@
-// Copyright 2006-2009 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// ========================================================================
-
-#ifndef OMAHA_COMMON_LOGGING_LOGGING_H__
-#define OMAHA_COMMON_LOGGING_LOGGING_H__
-
-#include <string>
-#include <cstring>
-#include <strstream>
-#include <tchar.h>
-
-#include "base/basictypes.h"
-#include "base/scoped_ptr.h"
-
-// This file provides logging facility for Windows client apps.
-//
-// Optional message capabilities
-// -----------------------------
-// Assertion failed messages and fatal errors are displayed in a dialog box
-// before the application exits. However, running this UI creates a message
-// loop, which causes application messages to be processed and potentially
-// dispatched to existing application windows. Since the application is in a
-// bad state when this assertion dialog is displayed, these messages may not
-// get processed and hang the dialog, or the application might go crazy.
-//
-// Therefore, it can be beneficial to display the error dialog in a separate
-// process from the main application. When the logging system needs to display
-// a fatal error dialog box, it will look for a program called
-// "DebugMessage.exe" in the same directory as the application executable. It
-// will run this application with the message as the command line, and will
-// not include the name of the application as is traditional for easier
-// parsing.
-//
-// The code for DebugMessage.exe is only one line. In WinMain, do:
-//   MessageBox(NULL, GetCommandLineW(), L"Fatal Error", 0);
-//
-// If DebugMessage.exe is not found, the logging code will use a normal
-// MessageBox, potentially causing the problems discussed above.
-
-
-// Instructions
-// ------------
-//
-// Make a bunch of macros for logging.  The way to log things is to stream
-// things to LOG(<a particular severity level>).  E.g.,
-//
-//   LOG(INFO) << "Found " << num_cookies << " cookies";
-//
-// You can also do conditional logging:
-//
-//   LOG_IF(INFO, num_cookies > 10) << "Got lots of cookies";
-//
-// The above will cause log messages to be output on the 1st, 11th, 21st, ...
-// times it is executed.  Note that the special COUNTER value is used to
-// identify which repetition is happening.
-//
-// The CHECK(condition) macro is active in both debug and release builds and
-// effectively performs a LOG(FATAL) which terminates the process and
-// generates a crashdump unless a debugger is attached.
-//
-// There are also "debug mode" logging macros like the ones above:
-//
-//   DLOG(INFO) << "Found cookies";
-//
-//   DLOG_IF(INFO, num_cookies > 10) << "Got lots of cookies";
-//
-// All "debug mode" logging is compiled away to nothing for non-debug mode
-// compiles.  LOG_IF and development flags also work well together
-// because the code can be compiled away sometimes.
-//
-// We also have
-//
-//   LOG_ASSERT(assertion);
-//   DLOG_ASSERT(assertion);
-//
-// which is syntactic sugar for {,D}LOG_IF(FATAL, assert fails) << assertion;
-//
-// We also override the standard 'assert' to use 'DLOG_ASSERT'.
-//
-// The supported severity levels for macros that allow you to specify one
-// are (in increasing order of severity) INFO, WARNING, ERROR, and FATAL.
-//
-// There is also the special severity of DFATAL, which logs FATAL in
-// debug mode, ERROR in normal mode.
-//
-// Very important: logging a message at the FATAL severity level causes
-// the program to terminate (after the message is logged).
-
-namespace logging {
-
-// Where to record logging output? A flat file and/or system debug log via
-// OutputDebugString. Defaults to LOG_ONLY_TO_FILE.
-enum LoggingDestination { LOG_ONLY_TO_FILE, 
-                          LOG_ONLY_TO_SYSTEM_DEBUG_LOG,
-                          LOG_TO_BOTH_FILE_AND_SYSTEM_DEBUG_LOG };
-
-// Indicates that the log file should be locked when being written to.
-// Often, there is no locking, which is fine for a single threaded program.
-// If logging is being done from multiple threads or there can be more than
-// one process doing the logging, the file should be locked during writes to
-// make each log outut atomic. Other writers will block.
-//
-// All processes writing to the log file must have their locking set for it to
-// work properly. Defaults to DONT_LOCK_LOG_FILE.
-enum LogLockingState { LOCK_LOG_FILE, DONT_LOCK_LOG_FILE };
-
-// On startup, should we delete or append to an existing log file (if any)?
-// Defaults to APPEND_TO_OLD_LOG_FILE.
-enum OldFileDeletionState { DELETE_OLD_LOG_FILE, APPEND_TO_OLD_LOG_FILE };
-
-// Sets the log file name and other global logging state. Calling this function
-// is recommended, and is normally done at the beginning of application init.
-// If you don't call it, all the flags will be initialized to their default
-// values, and there is a race condition that may leak a critical section
-// object if two threads try to do the first log at the same time.
-// See the definition of the enums above for descriptions and default values.
-//
-// The default log file is initialized to "debug.log" in the application
-// directory. You probably don't want this, especially since the program
-// directory may not be writable on an enduser's system.
-void InitLogging(const TCHAR* log_file, LoggingDestination logging_dest,
-                 LogLockingState lock_log, OldFileDeletionState delete_old);
-
-// Sets the log level. Anything at or above this level will be written to the
-// log file/displayed to the user (if applicable). Anything below this level
-// will be silently ignored. The log level defaults to 0 (everything is logged)
-// if this function is not called.
-void SetMinLogLevel(int level);
-
-// Sets the common items you want to be prepended to each log message.
-// process and thread IDs default to off, the timestamp defaults to on.
-// If this function is not called, logging defaults to writing the timestamp
-// only.
-void SetLogItems(bool enable_process_id, bool enable_thread_id,
-                 bool enable_timestamp, bool enable_tickcount);
-
-// Sets the Log Assert Handler that will be used to notify of check failures.
-// The default handler shows a dialog box, however clients can use this 
-// function to override with their own handling (e.g. a silent one for Unit
-// Tests)
-typedef void (*LogAssertHandlerFunction)(const std::string& str);
-void SetLogAssertHandler(LogAssertHandlerFunction handler);
-
-typedef int LogSeverity;
-const LogSeverity LOG_INFO = 0;
-const LogSeverity LOG_WARNING = 1;
-const LogSeverity LOG_ERROR = 2;
-const LogSeverity LOG_FATAL = 3;
-const LogSeverity LOG_NUM_SEVERITIES = 4;
-
-// LOG_DFATAL_LEVEL is LOG_FATAL in debug mode, ERROR in normal mode
-#ifdef NDEBUG
-const LogSeverity LOG_DFATAL_LEVEL = LOG_ERROR;
-#else
-const LogSeverity LOG_DFATAL_LEVEL = LOG_FATAL;
-#endif
-
-// A few definitions of macros that don't generate much code. These are used
-// by LOG() and LOG_IF, etc. Since these are used all over our code, it's
-// better to have compact code for these operations.
-#define COMPACT_GOOGLE_LOG_INFO \
-  logging::LogMessage(__FILE__, __LINE__)
-#define COMPACT_GOOGLE_LOG_WARNING \
-  logging::LogMessage(__FILE__, __LINE__, logging::LOG_WARNING)
-#define COMPACT_GOOGLE_LOG_ERROR \
-  logging::LogMessage(__FILE__, __LINE__, logging::LOG_ERROR)
-#define COMPACT_GOOGLE_LOG_FATAL \
-  logging::LogMessage(__FILE__, __LINE__, logging::LOG_FATAL)
-#define COMPACT_GOOGLE_LOG_DFATAL \
-  logging::LogMessage(__FILE__, __LINE__, logging::LOG_DFATAL_LEVEL)
-
-// wingdi.h defines ERROR to be 0. When we call LOG(ERROR), it gets
-// substituted with 0, and it expands to COMPACT_GOOGLE_LOG_0. To allow us
-// to keep using this syntax, we define this macro to do the same thing
-// as COMPACT_GOOGLE_LOG_ERROR, and also define ERROR the same way that
-// the Windows SDK does for consistency.
-#define ERROR 0
-#define COMPACT_GOOGLE_LOG_0 \
-  logging::LogMessage(__FILE__, __LINE__, logging::LOG_ERROR)
-
-// We use the preprocessor's merging operator, "##", so that, e.g.,
-// LOG(INFO) becomes the token COMPACT_GOOGLE_LOG_INFO.  There's some funny
-// subtle difference between ostream member streaming functions (e.g.,
-// ostream::operator<<(int) and ostream non-member streaming functions
-// (e.g., ::operator<<(ostream&, string&): it turns out that it's
-// impossible to stream something like a string directly to an unnamed
-// ostream. We employ a neat hack by calling the stream() member
-// function of LogMessage which seems to avoid the problem.
-
-#define LOG(severity) COMPACT_GOOGLE_LOG_ ## severity.stream()
-#define SYSLOG(severity) LOG(severity)
-
-#define LOG_IF(severity, condition) \
-  !(condition) ? (void) 0 : logging::LogMessageVoidify() & LOG(severity)
-#define SYSLOG_IF(severity, condition) LOG_IF(severity, condition)
-
-#define LOG_ASSERT(condition)  \
-  LOG_IF(FATAL, !(condition)) << "Assert failed: " #condition ". "
-#define SYSLOG_ASSERT(condition) \
-  SYSLOG_IF(FATAL, !(condition)) << "Assert failed: " #condition ". "
-
-// CHECK dies with a fatal error if condition is not true.  It is *not*
-// controlled by NDEBUG, so the check will be executed regardless of
-// compilation mode.
-#define CHECK(condition) \
-  LOG_IF(FATAL, !(condition)) << "Check failed: " #condition ". "
-
-// A container for a string pointer which can be evaluated to a bool -
-// true iff the pointer is NULL.
-struct CheckOpString {
-  CheckOpString(std::string* str) : str_(str) { }
-  // No destructor: if str_ is non-NULL, we're about to LOG(FATAL),
-  // so there's no point in cleaning up str_.
-  operator bool() const { return str_ != NULL; }
-  std::string* str_;
-};
-
-// Build the error message string.  This is separate from the "Impl"
-// function template because it is not performance critical and so can
-// be out of line, while the "Impl" code should be inline.
-template<class t1, class t2>
-std::string* MakeCheckOpString(const t1& v1, const t2& v2, const char* names) {
-  std::ostrstream ss;
-  ss << names << " (" << v1 << " vs. " << v2 << ")";
-  return new std::string(ss.str(), ss.pcount());
-}
-
-extern std::string* MakeCheckOpStringIntInt(int v1, int v2, const char* names);
-
-template<int, int>
-std::string* MakeCheckOpString(const int& v1, const int& v2, const char* names) {
-  return MakeCheckOpStringIntInt(v1, v2, names);
-}
-
-// Plus some debug-logging macros that get compiled to nothing for production
-//
-// DEBUG_MODE is for uses like
-//   if (DEBUG_MODE) foo.CheckThatFoo();
-// instead of
-//   #ifndef NDEBUG
-//     foo.CheckThatFoo();
-//   #endif
-
-#ifndef NDEBUG
-
-#define DLOG(severity) LOG(severity)
-#define DLOG_IF(severity, condition) LOG_IF(severity, condition)
-#define DLOG_ASSERT(condition) LOG_ASSERT(condition)
-
-// debug-only checking.  not executed in NDEBUG mode.
-enum { DEBUG_MODE = 1 };
-#define DCHECK(condition) \
-  LOG_IF(FATAL, !(condition)) << "Check failed: " #condition ". "
-
-// Helper functions for DCHECK_OP macro.
-// The (int, int) specialization works around the issue that the compiler
-// will not instantiate the template version of the function on values of
-// unnamed enum type - see comment below.
-#define DEFINE_DCHECK_OP_IMPL(name, op) \
-  template <class t1, class t2> \
-  inline std::string* Check##name##Impl(const t1& v1, const t2& v2, \
-                                        const char* names) { \
-    if (v1 op v2) return NULL; \
-    else return MakeCheckOpString(v1, v2, names); \
-  } \
-  inline std::string* Check##name##Impl(int v1, int v2, const char* names) { \
-    if (v1 op v2) return NULL; \
-    else return MakeCheckOpString(v1, v2, names); \
-  }
-DEFINE_DCHECK_OP_IMPL(EQ, ==)
-DEFINE_DCHECK_OP_IMPL(NE, !=)
-DEFINE_DCHECK_OP_IMPL(LE, <=)
-DEFINE_DCHECK_OP_IMPL(LT, < )
-DEFINE_DCHECK_OP_IMPL(GE, >=)
-DEFINE_DCHECK_OP_IMPL(GT, > )
-#undef DEFINE_DCHECK_OP_IMPL
-
-// Helper macro for binary operators.
-// Don't use this macro directly in your code, use CHECK_EQ et al below.
-#define DCHECK_OP(name, op, val1, val2)  \
-  while (logging::CheckOpString _result = \
-         logging::Check##name##Impl((val1), (val2), #val1 " " #op " " #val2)) \
-    logging::LogMessage(__FILE__, __LINE__, _result).stream()
-
-// Equality/Inequality checks - compare two values, and log a LOG_FATAL message
-// including the two values when the result is not as expected.  The values
-// must have operator<<(ostream, ...) defined.
-//
-// You may append to the error message like so:
-//   CHECK_NE(1, 2) << ": The world must be ending!";
-//
-// We are very careful to ensure that each argument is evaluated exactly
-// once, and that anything which is legal to pass as a function argument is
-// legal here.  In particular, the arguments may be temporary expressions
-// which will end up being destroyed at the end of the apparent statement,
-// for example:
-//   CHECK_EQ(string("abc")[1], 'b');
-//
-// WARNING: These don't compile correctly if one of the arguments is a pointer
-// and the other is NULL. To work around this, simply static_cast NULL to the
-// type of the desired pointer.
-
-#define DCHECK_EQ(val1, val2) DCHECK_OP(EQ, ==, val1, val2)
-#define DCHECK_NE(val1, val2) DCHECK_OP(NE, !=, val1, val2)
-#define DCHECK_LE(val1, val2) DCHECK_OP(LE, <=, val1, val2)
-#define DCHECK_LT(val1, val2) DCHECK_OP(LT, < , val1, val2)
-#define DCHECK_GE(val1, val2) DCHECK_OP(GE, >=, val1, val2)
-#define DCHECK_GT(val1, val2) DCHECK_OP(GT, > , val1, val2)
-
-// Helper functions for string comparisons.
-// To avoid bloat, the definitions are in logging.cc.
-#define DECLARE_DCHECK_STROP_IMPL(func, expected) \
-  std::string* Check##func##expected##Impl(const char* s1, \
-                                           const char* s2, \
-                                           const char* names);
-DECLARE_DCHECK_STROP_IMPL(strcmp, true)
-DECLARE_DCHECK_STROP_IMPL(strcmp, false)
-DECLARE_DCHECK_STROP_IMPL(_stricmp, true)
-DECLARE_DCHECK_STROP_IMPL(_stricmp, false)
-#undef DECLARE_DCHECK_STROP_IMPL
-
-// Helper macro for string comparisons.
-// Don't use this macro directly in your code, use CHECK_STREQ et al below.
-#define DCHECK_STROP(func, op, expected, s1, s2) \
-  while (CheckOpString _result = \
-      logging::Check##func##expected##Impl((s1), (s2), \
-                                           #s1 " " #op " " #s2)) \
-    LOG(FATAL) << *_result.str_
-
-// String (char*) equality/inequality checks.
-// CASE versions are case-insensitive.
-//
-// Note that "s1" and "s2" may be temporary strings which are destroyed
-// by the compiler at the end of the current "full expression"
-// (e.g. DCHECK_STREQ(Foo().c_str(), Bar().c_str())).
-
-#define DCHECK_STREQ(s1, s2) DCHECK_STROP(strcmp, ==, true, s1, s2)
-#define DCHECK_STRNE(s1, s2) DCHECK_STROP(strcmp, !=, false, s1, s2)
-#define DCHECK_STRCASEEQ(s1, s2) DCHECK_STROP(_stricmp, ==, true, s1, s2)
-#define DCHECK_STRCASENE(s1, s2) DCHECK_STROP(_stricmp, !=, false, s1, s2)
-
-#define DCHECK_INDEX(I,A) DCHECK(I < (sizeof(A)/sizeof(A[0])))
-#define DCHECK_BOUND(B,A) DCHECK(B <= (sizeof(A)/sizeof(A[0])))
-
-#else  // NDEBUG
-
-#define DLOG(severity) \
-  true ? (void) 0 : logging::LogMessageVoidify() & LOG(severity)
-
-#define DLOG_IF(severity, condition) \
-  true ? (void) 0 : logging::LogMessageVoidify() & LOG(severity)
-
-#define DLOG_ASSERT(condition) \
-  true ? (void) 0 : LOG_ASSERT(condition)
-
-enum { DEBUG_MODE = 0 };
-
-// This macro can be followed by a sequence of stream parameters in
-// non-debug mode. The DCHECK and friends macros use this so that
-// the expanded expression DCHECK(foo) << "asdf" is still syntactically
-// valid, even though the expression will get optimized away.
-#define NDEBUG_EAT_STREAM_PARAMETERS \
-  logging::LogMessage(__FILE__, __LINE__).stream()
-
-#define DCHECK(condition) \
-  while (false) NDEBUG_EAT_STREAM_PARAMETERS
-
-#define DCHECK_EQ(val1, val2) \
-  while (false) NDEBUG_EAT_STREAM_PARAMETERS
-
-#define DCHECK_NE(val1, val2) \
-  while (false) NDEBUG_EAT_STREAM_PARAMETERS
-
-#define DCHECK_LE(val1, val2) \
-  while (false) NDEBUG_EAT_STREAM_PARAMETERS
-
-#define DCHECK_LT(val1, val2) \
-  while (false) NDEBUG_EAT_STREAM_PARAMETERS
-
-#define DCHECK_GE(val1, val2) \
-  while (false) NDEBUG_EAT_STREAM_PARAMETERS
-
-#define DCHECK_GT(val1, val2) \
-  while (false) NDEBUG_EAT_STREAM_PARAMETERS
-
-#define DCHECK_STREQ(str1, str2) \
-  while (false) NDEBUG_EAT_STREAM_PARAMETERS
-
-#define DCHECK_STRCASEEQ(str1, str2) \
-  while (false) NDEBUG_EAT_STREAM_PARAMETERS
-
-#define DCHECK_STRNE(str1, str2) \
-  while (false) NDEBUG_EAT_STREAM_PARAMETERS
-
-#define DCHECK_STRCASENE(str1, str2) \
-  while (false) NDEBUG_EAT_STREAM_PARAMETERS
-
-#endif  // NDEBUG
-
-#define NOTREACHED() DCHECK(false)
-
-// Redefine the standard assert to use our nice log files
-#undef assert
-#define assert(x) DLOG_ASSERT(x)
-
-// This class more or less represents a particular log message.  You
-// create an instance of LogMessage and then stream stuff to it.
-// When you finish streaming to it, ~LogMessage is called and the
-// full message gets streamed to the appropriate destination.
-//
-// You shouldn't actually use LogMessage's constructor to log things,
-// though.  You should use the LOG() macro (and variants thereof)
-// above.
-class LogMessage {
- public:
-  LogMessage(const char* file, int line, LogSeverity severity, int ctr);
-
-  // Two special constructors that generate reduced amounts of code at
-  // LOG call sites for common cases.
-  //
-  // Used for LOG(INFO): Implied are:
-  // severity = LOG_INFO, ctr = 0
-  //
-  // Using this constructor instead of the more complex constructor above
-  // saves a couple of bytes per call site.
-  LogMessage(const char* file, int line);
-
-  // Used for LOG(severity) where severity != INFO.  Implied
-  // are: ctr = 0
-  //
-  // Using this constructor instead of the more complex constructor above
-  // saves a couple of bytes per call site.
-  LogMessage(const char* file, int line, LogSeverity severity);
-
-  // A special constructor used for check failures.
-  // Implied severity = LOG_FATAL
-  LogMessage(const char* file, int line, const CheckOpString& result);
-
-  ~LogMessage();
-
-  std::ostream& stream() { return stream_; }
-
- private:
-  void Init(const char* file, int line);
-
-  LogSeverity severity_;
-  std::ostrstream stream_;
-
-  DISALLOW_EVIL_CONSTRUCTORS(LogMessage);
-};
-
-// A non-macro interface to the log facility; (useful
-// when the logging level is not a compile-time constant).
-inline void LogAtLevel(int const log_level, std::string const &msg) {
-  LogMessage(__FILE__, __LINE__, log_level).stream() << msg;
-}
-
-// This class is used to explicitly ignore values in the conditional
-// logging macros.  This avoids compiler warnings like "value computed
-// is not used" and "statement has no effect".
-class LogMessageVoidify {
- public:
-  LogMessageVoidify() { }
-  // This has to be an operator with a precedence lower than << but
-  // higher than ?:
-  void operator&(std::ostream&) { }
-};
-
-// Closes the log file explicitly if open.
-// NOTE: Since the log file is opened as necessary by the action of logging
-//       statements, there's no guarantee that it will stay closed
-//       after this call.
-void CloseLogFile();
-
-} // namespace Logging
-
-// These functions are provided as a convenience for logging, which is where we
-// use streams (it is against Google style to use streams in other places). It
-// is designed to allow you to emit non-ASCII Unicode strings to the log file,
-// which is normally ASCII. It is relatively slow, so try not to use it for
-// common cases. Non-ASCII characters will be converted to UTF-8 by these operators.
-std::ostream& operator<<(std::ostream& out, const wchar_t* wstr);
-inline std::ostream& operator<<(std::ostream& out, const std::wstring& wstr) {
-  return out << wstr.c_str();
-}
-
-#endif  // OMAHA_COMMON_LOGGING_LOGGING_H__