feat: make IsFailureSignalHandlerInstalled public

src/glog/logging.h

@@ -967,9 +967,6 @@ template <bool>
 struct CompileAssert {};
 struct CrashReason;
 
-// Returns true if FailureSignalHandler is installed.
-// Needs to be exported since it's used by the signalhandler_unittest.
-GLOG_EXPORT bool IsFailureSignalHandlerInstalled();
 }  // namespace glog_internal_namespace_
 
 #define LOG_EVERY_N(severity, n) \
@@ -1656,6 +1653,9 @@ class GLOG_EXPORT NullStreamFatal : public NullStream {
 // words, stack traces of other threads won't be shown.
 GLOG_EXPORT void InstallFailureSignalHandler();
 
+// Returns true if FailureSignalHandler is installed.
+GLOG_EXPORT bool IsFailureSignalHandlerInstalled();
+
 // Installs a function that is used for writing the failure dump.  "data"
 // is the pointer to the beginning of a message to be written, and "size"
 // is the size of the message.  You should not expect the data is

src/signalhandler.cc

@@ -348,8 +348,6 @@ void FailureSignalHandler(int signal_number, siginfo_t* signal_info,
 
 }  // namespace
 
-namespace glog_internal_namespace_ {
-
 bool IsFailureSignalHandlerInstalled() {
 #ifdef HAVE_SIGACTION
   // TODO(andschwa): Return kFailureSignalHandlerInstalled?
@@ -366,8 +364,6 @@ bool IsFailureSignalHandlerInstalled() {
   return false;
 }
 
-}  // namespace glog_internal_namespace_
-
 void InstallFailureSignalHandler() {
 #ifdef HAVE_SIGACTION
   // Build the sigaction struct.