Workarounds and documentation of OSX posix incompatibilities

src/libslic3r/AppConfig.cpp

@@ -213,8 +213,11 @@ std::string AppConfig::load()
 
 void AppConfig::save()
 {
+#ifndef __APPLE__
+    // Apple does not implement thread_getname_np() correctly.
     if (get_current_thread_name() != "slic3r_main")
         throw CriticalException("Calling AppConfig::save() from a worker thread!");
+#endif
 
     // The config is first written to a file with a PID suffix and then moved
     // to avoid race conditions with multiple instances of Slic3r

src/libslic3r/Thread.cpp

@@ -116,8 +116,10 @@ void set_current_thread_name(const char *thread_name)
 
 std::string get_current_thread_name()
 {
-	char buf[16];
-	return std::string(thread_getname_np(buf, 16) == 0 ? buf : "");
+// not supported	
+//	char buf[16];
+//	return std::string(thread_getname_np(buf, 16) == 0 ? buf : "");
+	throw CriticalException("Not supported");
 }
 
 #else

src/libslic3r/Thread.hpp

@@ -10,6 +10,7 @@ namespace Slic3r {
 
 // Set / get thread name.
 // pthread_setname_np supports maximum 15 character thread names! (16th character is the null terminator)
+// Methods taking the thread as an argument are not supported by OSX.
 void set_thread_name(std::thread &thread, const char *thread_name);
 inline void set_thread_name(std::thread &thread, const std::string &thread_name) { set_thread_name(thread, thread_name.c_str()); }
 void set_thread_name(boost::thread &thread, const char *thread_name);
@@ -17,6 +18,7 @@ inline void set_thread_name(boost::thread &thread, const std::string &thread_nam
 void set_current_thread_name(const char *thread_name);
 inline void set_current_thread_name(const std::string &thread_name) { set_current_thread_name(thread_name.c_str()); }
 
+// Not supported by OSX.
 std::string get_current_thread_name();
 
 // To be called somewhere before the TBB threads are spinned for the first time, to