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posix iwasm: Make the timeout logic a bit more robust (#3478)

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Use an absolute timeout calculation to avoid being affected much
by CPU scheduling.
This commit is contained in:
YAMAMOTO Takashi 2024-05-30 16:55:24 +09:00 committed by GitHub
parent 115a4767df
commit 1f8a78d61a
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1 changed files with 13 additions and 11 deletions
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24
product-mini/platforms/posix/main.c
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@ -535,21 +535,23 @@ void *
timeout_thread(void *vp)
{
const struct timeout_arg *arg = vp;
uint32 left = arg->timeout_ms;
const uint64 end_time =
os_time_get_boot_us() + (uint64)arg->timeout_ms * 1000;
while (!arg->cancel) {
uint32 ms;
if (left >= 100) {
ms = 100;
}
else {
ms = left;
}
os_usleep((uint64)ms * 1000);
left -= ms;
if (left == 0) {
const uint64 now = os_time_get_boot_us();
if ((int64)(now - end_time) > 0) {
wasm_runtime_terminate(arg->inst);
break;
}
const uint64 left_us = end_time - now;
uint32 us;
if (left_us >= 100 * 1000) {
us = 100 * 1000;
}
else {
us = left_us;
}
os_usleep(us);
}
return NULL;
}