--- /dev/null
+// Copyright (c) 2014 Marshall A. Greenblatt. Portions copyright (c) 2012
+// Google Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * 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.
+// * Neither the name of Google Inc. nor the name Chromium Embedded
+// Framework nor the names of its contributors may be used to endorse
+// or promote products derived from this software without specific prior
+// written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "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 COPYRIGHT
+// OWNER OR CONTRIBUTORS 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.
+//
+// ---------------------------------------------------------------------------
+//
+// The contents of this file are only available to applications that link
+// against the libcef_dll_wrapper target.
+//
+// WARNING: Logging macros should not be used in the main/browser process before
+// calling CefInitialize or in sub-processes before calling CefExecuteProcess.
+//
+// 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 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;
+//
+// There are "verbose level" logging macros. They look like
+//
+// VLOG(1) << "I'm printed when you run the program with --v=1 or more";
+// VLOG(2) << "I'm printed when you run the program with --v=2 or more";
+//
+// These always log at the INFO log level (when they log at all).
+// The verbose logging can also be turned on module-by-module. For instance,
+// --vmodule=profile=2,icon_loader=1,browser_*=3,*/chromeos/*=4 --v=0
+// will cause:
+// a. VLOG(2) and lower messages to be printed from profile.{h,cc}
+// b. VLOG(1) and lower messages to be printed from icon_loader.{h,cc}
+// c. VLOG(3) and lower messages to be printed from files prefixed with
+// "browser"
+// d. VLOG(4) and lower messages to be printed from files under a
+// "chromeos" directory.
+// e. VLOG(0) and lower messages to be printed from elsewhere
+//
+// The wildcarding functionality shown by (c) supports both '*' (match
+// 0 or more characters) and '?' (match any single character)
+// wildcards. Any pattern containing a forward or backward slash will
+// be tested against the whole pathname and not just the module.
+// E.g., "*/foo/bar/*=2" would change the logging level for all code
+// in source files under a "foo/bar" directory.
+//
+// There's also VLOG_IS_ON(n) "verbose level" condition macro. To be used as
+//
+// if (VLOG_IS_ON(2)) {
+// // do some logging preparation and logging
+// // that can't be accomplished with just VLOG(2) << ...;
+// }
+//
+// There is also a VLOG_IF "verbose level" condition macro for sample
+// cases, when some extra computation and preparation for logs is not
+// needed.
+//
+// VLOG_IF(1, (size > 1024))
+// << "I'm printed when size is more than 1024 and when you run the "
+// "program with --v=1 or more";
+//
+// We also override the standard 'assert' to use 'DLOG_ASSERT'.
+//
+// Lastly, there is:
+//
+// PLOG(ERROR) << "Couldn't do foo";
+// DPLOG(ERROR) << "Couldn't do foo";
+// PLOG_IF(ERROR, cond) << "Couldn't do foo";
+// DPLOG_IF(ERROR, cond) << "Couldn't do foo";
+// PCHECK(condition) << "Couldn't do foo";
+// DPCHECK(condition) << "Couldn't do foo";
+//
+// which append the last system error to the message in string form (taken from
+// GetLastError() on Windows and errno on POSIX).
+//
+// The supported severity levels for macros that allow you to specify one
+// are (in increasing order of severity) INFO, WARNING, ERROR, and FATAL.
+//
+// Very important: logging a message at the FATAL severity level causes
+// the program to terminate (after the message is logged).
+//
+// There is the special severity of DFATAL, which logs FATAL in debug mode,
+// ERROR in normal mode.
+//
+
+#ifndef CEF_INCLUDE_BASE_CEF_LOGGING_H_
+#define CEF_INCLUDE_BASE_CEF_LOGGING_H_
+#pragma once
+
+#if defined(DCHECK)
+// Do nothing if the macros provided by this header already exist.
+// This can happen in cases where Chromium code is used directly by the
+// client application. When using Chromium code directly always include
+// the Chromium header first to avoid type conflicts.
+
+// Always define the DCHECK_IS_ON macro which is used from other CEF headers.
+#if defined(NDEBUG) && !defined(DCHECK_ALWAYS_ON)
+#define DCHECK_IS_ON() 0
+#else
+#define DCHECK_IS_ON() 1
+#endif
+
+#elif defined(USING_CHROMIUM_INCLUDES)
+// When building CEF include the Chromium header directly.
+#include "base/logging.h"
+#else // !USING_CHROMIUM_INCLUDES
+// The following is substantially similar to the Chromium implementation.
+// If the Chromium implementation diverges the below implementation should be
+// updated to match.
+
+#include <cassert>
+#include <string>
+#include <cstring>
+#include <sstream>
+
+#include "include/base/cef_build.h"
+#include "include/base/cef_macros.h"
+#include "include/internal/cef_logging_internal.h"
+
+namespace cef {
+namespace logging {
+
+// Gets the current log level.
+inline int GetMinLogLevel() {
+ return cef_get_min_log_level();
+}
+
+// Gets the current vlog level for the given file (usually taken from
+// __FILE__). Note that |N| is the size *with* the null terminator.
+template <size_t N>
+int GetVlogLevel(const char (&file)[N]) {
+ return cef_get_vlog_level(file, N);
+}
+
+typedef int LogSeverity;
+const LogSeverity LOG_VERBOSE = -1; // This is level 1 verbosity
+// Note: the log severities are used to index into the array of names,
+// see log_severity_names.
+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 is LOG_FATAL in debug mode, ERROR in normal mode
+#ifdef NDEBUG
+const LogSeverity LOG_DFATAL = LOG_ERROR;
+#else
+const LogSeverity LOG_DFATAL = 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_EX_INFO(ClassName, ...) \
+ cef::logging::ClassName(__FILE__, __LINE__, cef::logging::LOG_INFO , \
+ ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_EX_WARNING(ClassName, ...) \
+ cef::logging::ClassName(__FILE__, __LINE__, cef::logging::LOG_WARNING , \
+ ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_EX_ERROR(ClassName, ...) \
+ cef::logging::ClassName(__FILE__, __LINE__, cef::logging::LOG_ERROR , \
+ ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_EX_FATAL(ClassName, ...) \
+ cef::logging::ClassName(__FILE__, __LINE__, cef::logging::LOG_FATAL , \
+ ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_EX_DFATAL(ClassName, ...) \
+ cef::logging::ClassName(__FILE__, __LINE__, cef::logging::LOG_DFATAL , \
+ ##__VA_ARGS__)
+
+#define COMPACT_GOOGLE_LOG_INFO \
+ COMPACT_GOOGLE_LOG_EX_INFO(LogMessage)
+#define COMPACT_GOOGLE_LOG_WARNING \
+ COMPACT_GOOGLE_LOG_EX_WARNING(LogMessage)
+#define COMPACT_GOOGLE_LOG_ERROR \
+ COMPACT_GOOGLE_LOG_EX_ERROR(LogMessage)
+#define COMPACT_GOOGLE_LOG_FATAL \
+ COMPACT_GOOGLE_LOG_EX_FATAL(LogMessage)
+#define COMPACT_GOOGLE_LOG_DFATAL \
+ COMPACT_GOOGLE_LOG_EX_DFATAL(LogMessage)
+
+#if defined(OS_WIN)
+// 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_EX_0(ClassName, ...) \
+ COMPACT_GOOGLE_LOG_EX_ERROR(ClassName , ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_0 COMPACT_GOOGLE_LOG_ERROR
+// Needed for LOG_IS_ON(ERROR).
+const LogSeverity LOG_0 = LOG_ERROR;
+#endif
+
+// As special cases, we can assume that LOG_IS_ON(FATAL) always holds. Also,
+// LOG_IS_ON(DFATAL) always holds in debug mode. In particular, CHECK()s will
+// always fire if they fail.
+#define LOG_IS_ON(severity) \
+ ((::cef::logging::LOG_ ## severity) >= ::cef::logging::GetMinLogLevel())
+
+// We can't do any caching tricks with VLOG_IS_ON() like the
+// google-glog version since it requires GCC extensions. This means
+// that using the v-logging functions in conjunction with --vmodule
+// may be slow.
+#define VLOG_IS_ON(verboselevel) \
+ ((verboselevel) <= ::cef::logging::GetVlogLevel(__FILE__))
+
+// Helper macro which avoids evaluating the arguments to a stream if
+// the condition doesn't hold.
+#define LAZY_STREAM(stream, condition) \
+ !(condition) ? (void) 0 : ::cef::logging::LogMessageVoidify() & (stream)
+
+// 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_STREAM(severity) COMPACT_GOOGLE_LOG_ ## severity.stream()
+
+#define LOG(severity) LAZY_STREAM(LOG_STREAM(severity), LOG_IS_ON(severity))
+#define LOG_IF(severity, condition) \
+ LAZY_STREAM(LOG_STREAM(severity), LOG_IS_ON(severity) && (condition))
+
+#define SYSLOG(severity) LOG(severity)
+#define SYSLOG_IF(severity, condition) LOG_IF(severity, condition)
+
+// The VLOG macros log with negative verbosities.
+#define VLOG_STREAM(verbose_level) \
+ cef::logging::LogMessage(__FILE__, __LINE__, -verbose_level).stream()
+
+#define VLOG(verbose_level) \
+ LAZY_STREAM(VLOG_STREAM(verbose_level), VLOG_IS_ON(verbose_level))
+
+#define VLOG_IF(verbose_level, condition) \
+ LAZY_STREAM(VLOG_STREAM(verbose_level), \
+ VLOG_IS_ON(verbose_level) && (condition))
+
+#if defined (OS_WIN)
+#define VPLOG_STREAM(verbose_level) \
+ cef::logging::Win32ErrorLogMessage(__FILE__, __LINE__, -verbose_level, \
+ ::cef::logging::GetLastSystemErrorCode()).stream()
+#elif defined(OS_POSIX)
+#define VPLOG_STREAM(verbose_level) \
+ cef::logging::ErrnoLogMessage(__FILE__, __LINE__, -verbose_level, \
+ ::cef::logging::GetLastSystemErrorCode()).stream()
+#endif
+
+#define VPLOG(verbose_level) \
+ LAZY_STREAM(VPLOG_STREAM(verbose_level), VLOG_IS_ON(verbose_level))
+
+#define VPLOG_IF(verbose_level, condition) \
+ LAZY_STREAM(VPLOG_STREAM(verbose_level), \
+ VLOG_IS_ON(verbose_level) && (condition))
+
+// TODO(akalin): Add more VLOG variants, e.g. VPLOG.
+
+#define LOG_ASSERT(condition) \
+ LOG_IF(FATAL, !(condition)) << "Assert failed: " #condition ". "
+#define SYSLOG_ASSERT(condition) \
+ SYSLOG_IF(FATAL, !(condition)) << "Assert failed: " #condition ". "
+
+#if defined(OS_WIN)
+#define PLOG_STREAM(severity) \
+ COMPACT_GOOGLE_LOG_EX_ ## severity(Win32ErrorLogMessage, \
+ ::cef::logging::GetLastSystemErrorCode()).stream()
+#elif defined(OS_POSIX)
+#define PLOG_STREAM(severity) \
+ COMPACT_GOOGLE_LOG_EX_ ## severity(ErrnoLogMessage, \
+ ::cef::logging::GetLastSystemErrorCode()).stream()
+#endif
+
+#define PLOG(severity) \
+ LAZY_STREAM(PLOG_STREAM(severity), LOG_IS_ON(severity))
+
+#define PLOG_IF(severity, condition) \
+ LAZY_STREAM(PLOG_STREAM(severity), LOG_IS_ON(severity) && (condition))
+
+// The actual stream used isn't important.
+#define EAT_STREAM_PARAMETERS \
+ true ? (void) 0 : ::cef::logging::LogMessageVoidify() & LOG_STREAM(FATAL)
+
+// 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.
+//
+// We make sure CHECK et al. always evaluates their arguments, as
+// doing CHECK(FunctionWithSideEffect()) is a common idiom.
+
+#define CHECK(condition) \
+ LAZY_STREAM(LOG_STREAM(FATAL), !(condition)) \
+ << "Check failed: " #condition ". "
+
+#define PCHECK(condition) \
+ LAZY_STREAM(PLOG_STREAM(FATAL), !(condition)) \
+ << "Check failed: " #condition ". "
+
+// Helper macro for binary operators.
+// Don't use this macro directly in your code, use CHECK_EQ et al below.
+//
+// TODO(akalin): Rewrite this so that constructs like if (...)
+// CHECK_EQ(...) else { ... } work properly.
+#define CHECK_OP(name, op, val1, val2) \
+ if (std::string* _result = \
+ cef::logging::Check##name##Impl((val1), (val2), \
+ #val1 " " #op " " #val2)) \
+ cef::logging::LogMessage(__FILE__, __LINE__, _result).stream()
+
+// 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. Caller
+// takes ownership of the returned string.
+template<class t1, class t2>
+std::string* MakeCheckOpString(const t1& v1, const t2& v2, const char* names) {
+ std::ostringstream ss;
+ ss << names << " (" << v1 << " vs. " << v2 << ")";
+ std::string* msg = new std::string(ss.str());
+ return msg;
+}
+
+// MSVC doesn't like complex extern templates and DLLs.
+#if !defined(COMPILER_MSVC)
+// Commonly used instantiations of MakeCheckOpString<>. Explicitly instantiated
+// in logging.cc.
+extern template std::string* MakeCheckOpString<int, int>(
+ const int&, const int&, const char* names);
+extern template
+std::string* MakeCheckOpString<unsigned long, unsigned long>(
+ const unsigned long&, const unsigned long&, const char* names);
+extern template
+std::string* MakeCheckOpString<unsigned long, unsigned int>(
+ const unsigned long&, const unsigned int&, const char* names);
+extern template
+std::string* MakeCheckOpString<unsigned int, unsigned long>(
+ const unsigned int&, const unsigned long&, const char* names);
+extern template
+std::string* MakeCheckOpString<std::string, std::string>(
+ const std::string&, const std::string&, const char* name);
+#endif
+
+// Helper functions for CHECK_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_CHECK_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_CHECK_OP_IMPL(EQ, ==)
+DEFINE_CHECK_OP_IMPL(NE, !=)
+DEFINE_CHECK_OP_IMPL(LE, <=)
+DEFINE_CHECK_OP_IMPL(LT, < )
+DEFINE_CHECK_OP_IMPL(GE, >=)
+DEFINE_CHECK_OP_IMPL(GT, > )
+#undef DEFINE_CHECK_OP_IMPL
+
+#define CHECK_EQ(val1, val2) CHECK_OP(EQ, ==, val1, val2)
+#define CHECK_NE(val1, val2) CHECK_OP(NE, !=, val1, val2)
+#define CHECK_LE(val1, val2) CHECK_OP(LE, <=, val1, val2)
+#define CHECK_LT(val1, val2) CHECK_OP(LT, < , val1, val2)
+#define CHECK_GE(val1, val2) CHECK_OP(GE, >=, val1, val2)
+#define CHECK_GT(val1, val2) CHECK_OP(GT, > , val1, val2)
+
+#if defined(NDEBUG)
+#define ENABLE_DLOG 0
+#else
+#define ENABLE_DLOG 1
+#endif
+
+#if defined(NDEBUG) && !defined(DCHECK_ALWAYS_ON)
+#define DCHECK_IS_ON() 0
+#else
+#define DCHECK_IS_ON() 1
+#endif
+
+// Definitions for DLOG et al.
+
+#if ENABLE_DLOG
+
+#define DLOG_IS_ON(severity) LOG_IS_ON(severity)
+#define DLOG_IF(severity, condition) LOG_IF(severity, condition)
+#define DLOG_ASSERT(condition) LOG_ASSERT(condition)
+#define DPLOG_IF(severity, condition) PLOG_IF(severity, condition)
+#define DVLOG_IF(verboselevel, condition) VLOG_IF(verboselevel, condition)
+#define DVPLOG_IF(verboselevel, condition) VPLOG_IF(verboselevel, condition)
+
+#else // ENABLE_DLOG
+
+// If ENABLE_DLOG is off, we want to avoid emitting any references to
+// |condition| (which may reference a variable defined only if NDEBUG
+// is not defined). Contrast this with DCHECK et al., which has
+// different behavior.
+
+#define DLOG_IS_ON(severity) false
+#define DLOG_IF(severity, condition) EAT_STREAM_PARAMETERS
+#define DLOG_ASSERT(condition) EAT_STREAM_PARAMETERS
+#define DPLOG_IF(severity, condition) EAT_STREAM_PARAMETERS
+#define DVLOG_IF(verboselevel, condition) EAT_STREAM_PARAMETERS
+#define DVPLOG_IF(verboselevel, condition) EAT_STREAM_PARAMETERS
+
+#endif // ENABLE_DLOG
+
+// DEBUG_MODE is for uses like
+// if (DEBUG_MODE) foo.CheckThatFoo();
+// instead of
+// #ifndef NDEBUG
+// foo.CheckThatFoo();
+// #endif
+//
+// We tie its state to ENABLE_DLOG.
+enum { DEBUG_MODE = ENABLE_DLOG };
+
+#undef ENABLE_DLOG
+
+#define DLOG(severity) \
+ LAZY_STREAM(LOG_STREAM(severity), DLOG_IS_ON(severity))
+
+#define DPLOG(severity) \
+ LAZY_STREAM(PLOG_STREAM(severity), DLOG_IS_ON(severity))
+
+#define DVLOG(verboselevel) DVLOG_IF(verboselevel, VLOG_IS_ON(verboselevel))
+
+#define DVPLOG(verboselevel) DVPLOG_IF(verboselevel, VLOG_IS_ON(verboselevel))
+
+// Definitions for DCHECK et al.
+
+#if DCHECK_IS_ON()
+
+#define COMPACT_GOOGLE_LOG_EX_DCHECK(ClassName, ...) \
+ COMPACT_GOOGLE_LOG_EX_FATAL(ClassName , ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_DCHECK COMPACT_GOOGLE_LOG_FATAL
+const LogSeverity LOG_DCHECK = LOG_FATAL;
+
+#else // DCHECK_IS_ON()
+
+// These are just dummy values.
+#define COMPACT_GOOGLE_LOG_EX_DCHECK(ClassName, ...) \
+ COMPACT_GOOGLE_LOG_EX_INFO(ClassName , ##__VA_ARGS__)
+#define COMPACT_GOOGLE_LOG_DCHECK COMPACT_GOOGLE_LOG_INFO
+const LogSeverity LOG_DCHECK = LOG_INFO;
+
+#endif // DCHECK_IS_ON()
+
+// DCHECK et al. make sure to reference |condition| regardless of
+// whether DCHECKs are enabled; this is so that we don't get unused
+// variable warnings if the only use of a variable is in a DCHECK.
+// This behavior is different from DLOG_IF et al.
+
+#define DCHECK(condition) \
+ LAZY_STREAM(LOG_STREAM(DCHECK), DCHECK_IS_ON() && !(condition)) \
+ << "Check failed: " #condition ". "
+
+#define DPCHECK(condition) \
+ LAZY_STREAM(PLOG_STREAM(DCHECK), DCHECK_IS_ON() && !(condition)) \
+ << "Check failed: " #condition ". "
+
+// Helper macro for binary operators.
+// Don't use this macro directly in your code, use DCHECK_EQ et al below.
+#define DCHECK_OP(name, op, val1, val2) \
+ if (DCHECK_IS_ON()) \
+ if (std::string* _result = cef::logging::Check##name##Impl( \
+ (val1), (val2), #val1 " " #op " " #val2)) \
+ cef::logging::LogMessage(__FILE__, __LINE__, \
+ ::cef::logging::LOG_DCHECK, _result).stream()
+
+// Equality/Inequality checks - compare two values, and log a
+// LOG_DCHECK 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:
+// DCHECK_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:
+// DCHECK_EQ(string("abc")[1], 'b');
+//
+// WARNING: These may not 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)
+
+#if defined(NDEBUG) && defined(OS_CHROMEOS)
+#define NOTREACHED() LOG(ERROR) << "NOTREACHED() hit in " << \
+ __FUNCTION__ << ". "
+#else
+#define NOTREACHED() DCHECK(false)
+#endif
+
+// 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:
+ // Used for LOG(severity).
+ LogMessage(const char* file, int line, LogSeverity severity);
+
+ // Used for CHECK_EQ(), etc. Takes ownership of the given string.
+ // Implied severity = LOG_FATAL.
+ LogMessage(const char* file, int line, std::string* result);
+
+ // Used for DCHECK_EQ(), etc. Takes ownership of the given string.
+ LogMessage(const char* file, int line, LogSeverity severity,
+ std::string* result);
+
+ ~LogMessage();
+
+ std::ostream& stream() { return stream_; }
+
+ private:
+ LogSeverity severity_;
+ std::ostringstream stream_;
+
+ // The file and line information passed in to the constructor.
+ const char* file_;
+ const int line_;
+
+#if defined(OS_WIN)
+ // Stores the current value of GetLastError in the constructor and restores
+ // it in the destructor by calling SetLastError.
+ // This is useful since the LogMessage class uses a lot of Win32 calls
+ // that will lose the value of GLE and the code that called the log function
+ // will have lost the thread error value when the log call returns.
+ class SaveLastError {
+ public:
+ SaveLastError();
+ ~SaveLastError();
+
+ unsigned long get_error() const { return last_error_; }
+
+ protected:
+ unsigned long last_error_;
+ };
+
+ SaveLastError last_error_;
+#endif
+
+ DISALLOW_COPY_AND_ASSIGN(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&) { }
+};
+
+#if defined(OS_WIN)
+typedef unsigned long SystemErrorCode;
+#elif defined(OS_POSIX)
+typedef int SystemErrorCode;
+#endif
+
+// Alias for ::GetLastError() on Windows and errno on POSIX. Avoids having to
+// pull in windows.h just for GetLastError() and DWORD.
+SystemErrorCode GetLastSystemErrorCode();
+std::string SystemErrorCodeToString(SystemErrorCode error_code);
+
+#if defined(OS_WIN)
+// Appends a formatted system message of the GetLastError() type.
+class Win32ErrorLogMessage {
+ public:
+ Win32ErrorLogMessage(const char* file,
+ int line,
+ LogSeverity severity,
+ SystemErrorCode err);
+
+ // Appends the error message before destructing the encapsulated class.
+ ~Win32ErrorLogMessage();
+
+ std::ostream& stream() { return log_message_.stream(); }
+
+ private:
+ SystemErrorCode err_;
+ LogMessage log_message_;
+
+ DISALLOW_COPY_AND_ASSIGN(Win32ErrorLogMessage);
+};
+#elif defined(OS_POSIX)
+// Appends a formatted system message of the errno type
+class ErrnoLogMessage {
+ public:
+ ErrnoLogMessage(const char* file,
+ int line,
+ LogSeverity severity,
+ SystemErrorCode err);
+
+ // Appends the error message before destructing the encapsulated class.
+ ~ErrnoLogMessage();
+
+ std::ostream& stream() { return log_message_.stream(); }
+
+ private:
+ SystemErrorCode err_;
+ LogMessage log_message_;
+
+ DISALLOW_COPY_AND_ASSIGN(ErrnoLogMessage);
+};
+#endif // OS_WIN
+
+} // namespace logging
+} // namespace cef
+
+// 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();
+}
+
+// The NOTIMPLEMENTED() macro annotates codepaths which have
+// not been implemented yet.
+//
+// The implementation of this macro is controlled by NOTIMPLEMENTED_POLICY:
+// 0 -- Do nothing (stripped by compiler)
+// 1 -- Warn at compile time
+// 2 -- Fail at compile time
+// 3 -- Fail at runtime (DCHECK)
+// 4 -- [default] LOG(ERROR) at runtime
+// 5 -- LOG(ERROR) at runtime, only once per call-site
+
+#ifndef NOTIMPLEMENTED_POLICY
+#if defined(OS_ANDROID) && defined(OFFICIAL_BUILD)
+#define NOTIMPLEMENTED_POLICY 0
+#else
+// Select default policy: LOG(ERROR)
+#define NOTIMPLEMENTED_POLICY 4
+#endif
+#endif
+
+#if defined(COMPILER_GCC)
+// On Linux, with GCC, we can use __PRETTY_FUNCTION__ to get the demangled name
+// of the current function in the NOTIMPLEMENTED message.
+#define NOTIMPLEMENTED_MSG "Not implemented reached in " << __PRETTY_FUNCTION__
+#else
+#define NOTIMPLEMENTED_MSG "NOT IMPLEMENTED"
+#endif
+
+#if NOTIMPLEMENTED_POLICY == 0
+#define NOTIMPLEMENTED() EAT_STREAM_PARAMETERS
+#elif NOTIMPLEMENTED_POLICY == 1
+// TODO, figure out how to generate a warning
+#define NOTIMPLEMENTED() COMPILE_ASSERT(false, NOT_IMPLEMENTED)
+#elif NOTIMPLEMENTED_POLICY == 2
+#define NOTIMPLEMENTED() COMPILE_ASSERT(false, NOT_IMPLEMENTED)
+#elif NOTIMPLEMENTED_POLICY == 3
+#define NOTIMPLEMENTED() NOTREACHED()
+#elif NOTIMPLEMENTED_POLICY == 4
+#define NOTIMPLEMENTED() LOG(ERROR) << NOTIMPLEMENTED_MSG
+#elif NOTIMPLEMENTED_POLICY == 5
+#define NOTIMPLEMENTED() do {\
+ static bool logged_once = false;\
+ LOG_IF(ERROR, !logged_once) << NOTIMPLEMENTED_MSG;\
+ logged_once = true;\
+} while(0);\
+EAT_STREAM_PARAMETERS
+#endif
+
+#endif // !USING_CHROMIUM_INCLUDES
+
+#endif // CEF_INCLUDE_BASE_CEF_LOGGING_H_
projects / casparcg / blobdiff