Create main thread via host

Create the main thread via host rather than being a global variable in
base; this way, no base threads are created before the host runs main()
because that can cause issues on some platforms.

base/thread.cpp

@@ -3,14 +3,15 @@
 
 namespace base {
 
-Thread g_main_thread;
 pthread_key_t Thread::s_key_;
 
 Thread::Thread(SocketServer *ss) : start_routine_(NULL), start_pv_(NULL),
         MessageQueue(ss) {
-    if (&g_main_thread == this) {
+    static bool s_first_thread;
+    if (!s_first_thread) {
         pthread_key_create(&s_key_, NULL);
         pthread_setspecific(s_key_, this);
+        s_first_thread = true;
     }
 }
 

game/ht.h

@@ -117,6 +117,7 @@ class CommandQueueViewer;
 #include "game/missionlist.h"
 #include "mpshared/netmessage.h"
 #include "game/dragrect.h"
+#include "base/thread.h"
 //#include "yajl/wrapper/jsontypes.h"
 
 namespace wi {
@@ -8800,6 +8801,9 @@ void HostGetUserName(char *pszBuff, int cbMax) secHost;
 SoundDevice *HostOpenSoundDevice() secSoundDevice;
 bool HostSoundServiceProc() secSoundDevice;
 void HostSleep(dword ct) secHost;
+void HostSetGameThread(base::Thread *thread);
+base::Thread& HostGetGameThread();
+base::Thread *HostGetGameThreadPointer();
 
 const int knKeyboardAskDefault = 0;
 const int knKeyboardAskURL = 1;

game/sdl/host.cpp

@@ -18,6 +18,7 @@ SdlPackFileReader gpakr;
 HttpPackManager *gppackm;
 HttpPackInfoManager *gppim;
 CompleteManager *gpcptm;
+base::Thread *gpgt;
 
 char *gpszUdid;
 
@@ -511,4 +512,16 @@ bool HostEnumAddonFiles(Enum *penm, char *pszAddonDir, int cbDir,
     return false;
 }
 
+void HostSetGameThread(base::Thread *thread) {
+    gpgt = thread;
+}
+
+base::Thread& HostGetGameThread() {
+    return *gpgt;
+}
+
+base::Thread *HostGetGameThreadPointer() {
+    return gpgt;
+}
+
 } // namespace wi

game/sdl/main.cpp

@@ -22,11 +22,18 @@ static void quit(int rc)
 #ifdef __cplusplus
 extern "C"
 #endif
+
 int SDL_main(int argc, char *argv[])
 {
+    // Create the main thread
+    base::Thread *main_thread = new base::Thread();
+
     // Set up the main thread as the SDL event thread.
     base::Thread::current().set_ss(new wi::SdlEventServer());
 
+    // Let the host have a pointer to the thread
+    wi::HostSetGameThread(main_thread);
+
     // TODO(darrinm): pass args through
     wi::GameMain((char *)"");
     return 0;

server/main.cpp

@@ -16,6 +16,9 @@
 #include <string>
 #include <vector>
 
+// Main server thread
+base::Thread main_thread;
+
 // These are defaults that can be overridden
 const dword kcRoomsMax = 200;
 const dword kcGamesPerRoomMax = 100;