Use the new ScopedMachVM class and the MACH_LOG family of logging macros

base/mac/mach_logging.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef BASE_MAC_MACH_LOGGING_H_
 #define BASE_MAC_MACH_LOGGING_H_
 
 #include <mach/mach.h>
 
+#include "base/base_export.h"
 #include "base/basictypes.h"
 #include "base/logging.h"
+#include "build/build_config.h"
 
 // Use the MACH_LOG family of macros along with a mach_error_t (kern_return_t)
 // containing a Mach error. The error value will be decoded so that logged
 // messages explain the error.
 //
 // Use the BOOTSTRAP_LOG family of macros specifically for errors that occur
 // while interoperating with the bootstrap subsystem. These errors will first
 // be looked up as bootstrap error messages. If no match is found, they will
 // be treated as generic Mach errors, as in MACH_LOG.
 //
 // Examples:
 //
 //   kern_return_t kr = mach_timebase_info(&info);
 //   if (kr != KERN_SUCCESS) {
 //     MACH_LOG(ERROR, kr) << "mach_timebase_info";
 //   }
 //
-//   kr = mach_vm_deallocate(task, address, size);
-//   MACH_DCHECK(kr == KERN_SUCCESS, kr) << "mach_vm_deallocate";
+//   kr = vm_deallocate(task, address, size);
+//   MACH_DCHECK(kr == KERN_SUCCESS, kr) << "vm_deallocate";
 
 namespace logging {
 
-class MachLogMessage : public logging::LogMessage {
+class BASE_EXPORT MachLogMessage : public logging::LogMessage {
  public:
   MachLogMessage(const char* file_path,
                  int line,
                  LogSeverity severity,
                  mach_error_t mach_err);
   ~MachLogMessage();
 
  private:
   mach_error_t mach_err_;
 
   DISALLOW_COPY_AND_ASSIGN(MachLogMessage);
 };
 
-class BootstrapLogMessage : public logging::LogMessage {
- public:
-  BootstrapLogMessage(const char* file_path,
-                      int line,
-                      LogSeverity severity,
-                      kern_return_t bootstrap_err);
-  ~BootstrapLogMessage();
-
- private:
-  kern_return_t bootstrap_err_;
-
-  DISALLOW_COPY_AND_ASSIGN(BootstrapLogMessage);
-};
-
 }  // namespace logging
 
+#if defined(NDEBUG)
+#define MACH_DVLOG_IS_ON(verbose_level) 0
+#else
+#define MACH_DVLOG_IS_ON(verbose_level) VLOG_IS_ON(verbose_level)
+#endif
+
 #define MACH_LOG_STREAM(severity, mach_err) \
     COMPACT_GOOGLE_LOG_EX_ ## severity(MachLogMessage, mach_err).stream()
 #define MACH_VLOG_STREAM(verbose_level, mach_err) \
     logging::MachLogMessage(__FILE__, __LINE__, \
                             -verbose_level, mach_err).stream()
 
 #define MACH_LOG(severity, mach_err) \
     LAZY_STREAM(MACH_LOG_STREAM(severity, mach_err), LOG_IS_ON(severity))
 #define MACH_LOG_IF(severity, condition, mach_err) \
     LAZY_STREAM(MACH_LOG_STREAM(severity, mach_err), \
@@ skipping 11 matching lines @@
     << "Check failed: " # condition << ". "
 
 #define MACH_DLOG(severity, mach_err) \
     LAZY_STREAM(MACH_LOG_STREAM(severity, mach_err), DLOG_IS_ON(severity))
 #define MACH_DLOG_IF(severity, condition, mach_err) \
     LAZY_STREAM(MACH_LOG_STREAM(severity, mach_err), \
                 DLOG_IS_ON(severity) && (condition))
 
 #define MACH_DVLOG(verbose_level, mach_err) \
     LAZY_STREAM(MACH_VLOG_STREAM(verbose_level, mach_err), \
-                DVLOG_IS_ON(verbose_level))
+                MACH_DVLOG_IS_ON(verbose_level))
 #define MACH_DVLOG_IF(verbose_level, condition, mach_err) \
-    LAZY_STREAM(MACH_VLOG_STREAM(verbose_level, mach_err) \
-                DVLOG_IS_ON(verbose_level) && (condition))
+    LAZY_STREAM(MACH_VLOG_STREAM(verbose_level, mach_err), \
+                MACH_DVLOG_IS_ON(verbose_level) && (condition))
 
 #define MACH_DCHECK(condition, mach_err) \
     LAZY_STREAM(MACH_LOG_STREAM(FATAL, mach_err), \
                 DCHECK_IS_ON && !(condition)) \
     << "Check failed: " # condition << ". "
 
+#if !defined(OS_IOS)
+
+namespace logging {
+
+class BASE_EXPORT BootstrapLogMessage : public logging::LogMessage {
+ public:
+  BootstrapLogMessage(const char* file_path,
+                      int line,
+                      LogSeverity severity,
+                      kern_return_t bootstrap_err);
+  ~BootstrapLogMessage();
+
+ private:
+  kern_return_t bootstrap_err_;
+
+  DISALLOW_COPY_AND_ASSIGN(BootstrapLogMessage);
+};
+
+}  // namespace logging
+
+#define BOOTSTRAP_DVLOG_IS_ON MACH_DVLOG_IS_ON
+
 #define BOOTSTRAP_LOG_STREAM(severity, bootstrap_err) \
     COMPACT_GOOGLE_LOG_EX_ ## severity(BootstrapLogMessage, \
                                        bootstrap_err).stream()
 #define BOOTSTRAP_VLOG_STREAM(verbose_level, bootstrap_err) \
     logging::BootstrapLogMessage(__FILE__, __LINE__, \
                                  -verbose_level, bootstrap_err).stream()
 
 #define BOOTSTRAP_LOG(severity, bootstrap_err) \
     LAZY_STREAM(BOOTSTRAP_LOG_STREAM(severity, \
                                      bootstrap_err), LOG_IS_ON(severity))
@@ skipping 14 matching lines @@
 
 #define BOOTSTRAP_DLOG(severity, bootstrap_err) \
     LAZY_STREAM(BOOTSTRAP_LOG_STREAM(severity, bootstrap_err), \
                 DLOG_IS_ON(severity))
 #define BOOTSTRAP_DLOG_IF(severity, condition, bootstrap_err) \
     LAZY_STREAM(BOOTSTRAP_LOG_STREAM(severity, bootstrap_err), \
                 DLOG_IS_ON(severity) && (condition))
 
 #define BOOTSTRAP_DVLOG(verbose_level, bootstrap_err) \
     LAZY_STREAM(BOOTSTRAP_VLOG_STREAM(verbose_level, bootstrap_err), \
-                DVLOG_IS_ON(verbose_level))
+                BOOTSTRAP_DVLOG_IS_ON(verbose_level))
 #define BOOTSTRAP_DVLOG_IF(verbose_level, condition, bootstrap_err) \
-    LAZY_STREAM(BOOTSTRAP_VLOG_STREAM(verbose_level, bootstrap_err) \
-                DVLOG_IS_ON(verbose_level) && (condition))
+    LAZY_STREAM(BOOTSTRAP_VLOG_STREAM(verbose_level, bootstrap_err), \
+                BOOTSTRAP_DVLOG_IS_ON(verbose_level) && (condition))
 
 #define BOOTSTRAP_DCHECK(condition, bootstrap_err) \
     LAZY_STREAM(BOOTSTRAP_LOG_STREAM(FATAL, bootstrap_err), \
                 DCHECK_IS_ON && !(condition)) \
     << "Check failed: " # condition << ". "
 
+#endif  // !OS_IOS
+
 #endif  // BASE_MAC_MACH_LOGGING_H_