From 6aaedb813fa11ba0679c3051bc2eb28646b9506c Mon Sep 17 00:00:00 2001
From: 3gg <3gg@shellblade.net>
Date: Sat, 30 Aug 2025 16:53:58 -0700
Subject: Update to SDL3

---
 src/contrib/SDL-3.2.20/test/testthread.c | 160 +++++++++++++++++++++++++++++++
 1 file changed, 160 insertions(+)
 create mode 100644 src/contrib/SDL-3.2.20/test/testthread.c

(limited to 'src/contrib/SDL-3.2.20/test/testthread.c')

diff --git a/src/contrib/SDL-3.2.20/test/testthread.c b/src/contrib/SDL-3.2.20/test/testthread.c
new file mode 100644
index 0000000..70710ea
--- /dev/null
+++ b/src/contrib/SDL-3.2.20/test/testthread.c
@@ -0,0 +1,160 @@
+/*
+  Copyright (C) 1997-2025 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.
+*/
+
+/* Simple test of the SDL threading code */
+
+#include <stdlib.h>
+#include <signal.h>
+
+#include <SDL3/SDL.h>
+#include <SDL3/SDL_main.h>
+#include <SDL3/SDL_test.h>
+
+static SDL_TLSID tls;
+static SDL_Thread *thread = NULL;
+static SDL_AtomicInt alive;
+static int testprio = 0;
+static SDLTest_CommonState *state;
+
+/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
+static void
+quit(int rc)
+{
+    SDL_Quit();
+    SDLTest_CommonDestroyState(state);
+    /* Let 'main()' return normally */
+    if (rc != 0) {
+        exit(rc);
+    }
+}
+
+static const char *
+getprioritystr(SDL_ThreadPriority priority)
+{
+    switch (priority) {
+    case SDL_THREAD_PRIORITY_LOW:
+        return "SDL_THREAD_PRIORITY_LOW";
+    case SDL_THREAD_PRIORITY_NORMAL:
+        return "SDL_THREAD_PRIORITY_NORMAL";
+    case SDL_THREAD_PRIORITY_HIGH:
+        return "SDL_THREAD_PRIORITY_HIGH";
+    case SDL_THREAD_PRIORITY_TIME_CRITICAL:
+        return "SDL_THREAD_PRIORITY_TIME_CRITICAL";
+    }
+
+    return "???";
+}
+
+static int SDLCALL
+ThreadFunc(void *data)
+{
+    SDL_ThreadPriority prio = SDL_THREAD_PRIORITY_NORMAL;
+
+    SDL_SetTLS(&tls, "baby thread", NULL);
+    SDL_Log("Started thread %s: My thread id is %" SDL_PRIu64 ", thread data = %s",
+            (char *)data, SDL_GetCurrentThreadID(), (const char *)SDL_GetTLS(&tls));
+    while (SDL_GetAtomicInt(&alive)) {
+        SDL_Log("Thread '%s' is alive!", (char *)data);
+
+        if (testprio) {
+            SDL_Log("SDL_SetCurrentThreadPriority(%s):%d", getprioritystr(prio), SDL_SetCurrentThreadPriority(prio));
+            if (++prio > SDL_THREAD_PRIORITY_TIME_CRITICAL) {
+                prio = SDL_THREAD_PRIORITY_LOW;
+            }
+        }
+
+        SDL_Delay(1 * 1000);
+    }
+    SDL_Log("Thread '%s' exiting!", (char *)data);
+    return 0;
+}
+
+static void
+killed(int sig)
+{
+    SDL_Log("Killed with SIGTERM, waiting 5 seconds to exit");
+    SDL_Delay(5 * 1000);
+    SDL_SetAtomicInt(&alive, 0);
+    SDL_WaitThread(thread, NULL);
+    quit(0);
+}
+
+int main(int argc, char *argv[])
+{
+    int i;
+
+    /* Initialize test framework */
+    state = SDLTest_CommonCreateState(argv, 0);
+    if (!state) {
+        return 1;
+    }
+
+    /* Parse commandline */
+    for (i = 1; i < argc;) {
+        int consumed;
+
+        consumed = SDLTest_CommonArg(state, i);
+        if (!consumed) {
+            if (SDL_strcmp("--prio", argv[i]) == 0) {
+                testprio = 1;
+                consumed = 1;
+            }
+        }
+        if (consumed <= 0) {
+            static const char *options[] = { "[--prio]", NULL };
+            SDLTest_CommonLogUsage(state, argv[0], options);
+            exit(1);
+        }
+
+        i += consumed;
+    }
+
+    /* Load the SDL library */
+    if (!SDL_Init(0)) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s", SDL_GetError());
+        return 1;
+    }
+
+    if (SDL_GetEnvironmentVariable(SDL_GetEnvironment(), "SDL_TESTS_QUICK") != NULL) {
+        SDL_Log("Not running slower tests");
+        SDL_Quit();
+        return 0;
+    }
+
+    SDL_SetTLS(&tls, "main thread", NULL);
+    SDL_Log("Main thread data initially: %s", (const char *)SDL_GetTLS(&tls));
+
+    SDL_SetAtomicInt(&alive, 1);
+    thread = SDL_CreateThread(ThreadFunc, "One", "#1");
+    if (!thread) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create thread: %s", SDL_GetError());
+        quit(1);
+    }
+    SDL_Delay(5 * 1000);
+    SDL_Log("Waiting for thread #1");
+    SDL_SetAtomicInt(&alive, 0);
+    SDL_WaitThread(thread, NULL);
+
+    SDL_Log("Main thread data finally: %s", (const char *)SDL_GetTLS(&tls));
+
+    SDL_SetAtomicInt(&alive, 1);
+    (void)signal(SIGTERM, killed);
+    thread = SDL_CreateThread(ThreadFunc, "Two", "#2");
+    if (!thread) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create thread: %s", SDL_GetError());
+        quit(1);
+    }
+    (void)raise(SIGTERM);
+
+    SDL_Quit(); /* Never reached */
+    return 0;   /* Never reached */
+}
-- 
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