Merge commit 'dec0d4ec4153bf9fc2b78ae6c2df45b6ea8dde7a' as 'external/sdl/SDL'

external/sdl/SDL/src/thread/ngage/SDL_systhread.cpp

@@ -0,0 +1,110 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+
+#ifdef SDL_THREAD_NGAGE
+
+/* N-Gage thread management routines for SDL */
+
+#include <e32std.h>
+
+extern "C" {
+#undef NULL
+#include "../SDL_systhread.h"
+#include "../SDL_thread_c.h"
+};
+
+static int object_count;
+
+static int RunThread(TAny *data)
+{
+    SDL_RunThread((SDL_Thread *)data);
+    return 0;
+}
+
+static TInt NewThread(const TDesC &aName, TAny *aPtr1, TAny *aPtr2)
+{
+    return ((RThread *)(aPtr1))->Create(aName, RunThread, KDefaultStackSize, NULL, aPtr2);
+}
+
+int CreateUnique(TInt (*aFunc)(const TDesC &aName, TAny *, TAny *), TAny *aPtr1, TAny *aPtr2)
+{
+    TBuf<16> name;
+    TInt status = KErrNone;
+    do {
+        object_count++;
+        name.Format(_L("SDL_%x"), object_count);
+        status = aFunc(name, aPtr1, aPtr2);
+    } while (status == KErrAlreadyExists);
+    return status;
+}
+
+int SDL_SYS_CreateThread(SDL_Thread *thread)
+{
+    RThread rthread;
+
+    TInt status = CreateUnique(NewThread, &rthread, thread);
+    if (status != KErrNone) {
+        delete (RThread *)thread->handle;
+        thread->handle = NULL;
+        return SDL_SetError("Not enough resources to create thread");
+    }
+
+    rthread.Resume();
+    thread->handle = rthread.Handle();
+    return 0;
+}
+
+void SDL_SYS_SetupThread(const char *name)
+{
+    return;
+}
+
+SDL_threadID SDL_ThreadID(void)
+{
+    RThread current;
+    TThreadId id = current.Id();
+    return id;
+}
+
+int SDL_SYS_SetThreadPriority(SDL_ThreadPriority priority)
+{
+    return 0;
+}
+
+void SDL_SYS_WaitThread(SDL_Thread *thread)
+{
+    RThread t;
+    t.Open(thread->threadid);
+    if (t.ExitReason() == EExitPending) {
+        TRequestStatus status;
+        t.Logon(status);
+        User::WaitForRequest(status);
+    }
+    t.Close();
+}
+
+void SDL_SYS_DetachThread(SDL_Thread *thread)
+{
+    return;
+}
+
+#endif /* SDL_THREAD_NGAGE */