Implement pfPatcher backend

Sources/Plasma/CoreLib/hsThread.h

@@ -96,6 +96,7 @@ public:
     virtual hsError Run() = 0;      // override this to do your work
     virtual void    Start();        // initializes stuff and calls your Run() method
     virtual void    Stop();     // sets fQuit = true and the waits for the thread to stop
+    virtual void    OnQuit() { }
                 
     //  Static functions
     static void*    Alloc(size_t size); // does not call operator::new(), may return nil

Sources/Plasma/CoreLib/hsThread_Unix.cpp

@@ -76,6 +76,7 @@ extern "C" {
         pthread_mutex_lock(((hsThread*)param)->GetStartupMutex());
         void* ret = (void*)(uintptr_t)((hsThread*)param)->Run();
         pthread_mutex_unlock(((hsThread*)param)->GetStartupMutex());
+        ((hsThread*)param)->OnQuit();
         pthread_exit(ret);
         return ret;
     }

Sources/Plasma/CoreLib/hsThread_Win.cpp

@@ -68,6 +68,7 @@ static unsigned int __stdcall gEntryPointBT(void* param)
     WinThreadParam* wtp = (WinThreadParam*)param;
     unsigned int result = wtp->fThread->Run();
     ::ReleaseSemaphore(wtp->fQuitSemaH, 1, nil); // signal that we've quit
+    wtp->fThread->OnQuit();
     delete param;
     return result;
 }

Sources/Plasma/CoreLib/plFileSystem.cpp

@@ -570,3 +570,27 @@ plFileName plFileSystem::GetTempFilename(const char *prefix, const plFileName &p
     return result;
 #endif
 }
+
+plString plFileSystem::ConvertFileSize(uint64_t size)
+{
+    const char* labels[] = { "KiB", "MiB", "GiB", "TiB", "PiB", "EiB" };
+    if (size < 1024)
+        return plString::Format("%i B");
+
+    uint64_t last_div = size;
+    for (size_t i = 0; i < arrsize(labels); ++i) {
+        uint64_t my_div = last_div / 1024;
+        if (my_div < 1024) {
+            float decimal = static_cast<float>(last_div) / 1024.f;
+            // Kilobytes are so small that we only care about whole numbers
+            if (i < 1)
+                return plString::Format("%.0f %s", decimal, labels[i]);
+            else
+                return plString::Format("%.2f %s", decimal, labels[i]);
+        }
+        last_div = my_div;
+    }
+
+    // this should never happen
+    return plString::Format("%i %s", last_div, labels[arrsize(labels) - 1]);
+}

Sources/Plasma/CoreLib/plFileSystem.h

@@ -338,6 +338,9 @@ namespace plFileSystem
      *  system temp path is used.
      */
     plFileName GetTempFilename(const char *prefix = "tmp", const plFileName &path = "");
+
+    /** Convert a file size from bytes to a human readable size. */
+    plString ConvertFileSize(uint64_t size);
 }
 
 #endif // plFileSystem_Defined