40 lines
942 B
Diff
40 lines
942 B
Diff
 
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diff --git a/src/cpuexec.c b/src/cpuexec.c
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index ca7401f..07db6a1 100644
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--- a/src/cpuexec.c
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+++ b/src/cpuexec.c
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@@ -943,6 +943,34 @@ void time_fence_exit()
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}
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}
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+#elif defined(__EMSCRIPTEN__)
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+
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+// No cross-thread wait primitive is used here: this build is single-threaded
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+// (see vpinball-wasm's README on why pthreads/SharedArrayBuffer are out of
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+// scope), and time_fence is purely an *optional* external-clock-sync feature
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+// (mirrored by Controller.TimeFence in controller.vbs) - reporting it as
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+// unsupported just means the emulator paces itself on its own internal
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+// timing instead of syncing to the host's clock, which is what every other
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+// platform this library runs on outside of this fence do anyway.
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+int time_fence_is_supported()
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+{
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+ return 0;
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+}
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+
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+void time_fence_post()
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+{
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+}
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+
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+int time_fence_wait(double secs)
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+{
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+ (void)secs;
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+ return 0;
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+}
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+
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+void time_fence_exit()
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+{
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+}
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+
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#else
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#include <semaphore.h>
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