mirror of
https://github.com/tinygo-org/tinygo.git
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Jake Bailey
16fc1ea2bb
Match the Go runtime by terminating for deadlocks, stack overflows, runtime and GC invariants, invalid lock operations, and platform initialization failures instead of routing them through panic/recover. Keep language-level runtime errors and unsupported user operations recoverable. Add crash coverage that verifies fatal errors bypass deferred recover calls.
43 lines
909 B
Go
43 lines
909 B
Go
//go:build scheduler.tasks || scheduler.asyncify || scheduler.cores
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package task
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import "sync/atomic"
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var (
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mainTask *Task
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liveTasks uint32
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mainExitedByGoexit uint32
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)
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func addLiveTask(t *Task) {
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if mainTask == nil {
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mainTask = t
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}
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atomic.AddUint32(&liveTasks, 1)
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}
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// Exit exits the current task because runtime.Goexit was called.
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func Exit() {
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exit(true)
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}
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func exit(goexit bool) {
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t := Current()
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remaining := atomic.AddUint32(&liveTasks, ^uint32(0))
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if t == mainTask {
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if goexit {
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if remaining == 0 {
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runtimeFatal("all goroutines are asleep - deadlock!")
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}
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atomic.StoreUint32(&mainExitedByGoexit, 1)
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}
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} else if atomic.LoadUint32(&mainExitedByGoexit) != 0 && remaining == 0 {
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runtimeFatal("all goroutines are asleep - deadlock!")
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}
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// TODO: explicitly free the stack after switching back to the scheduler.
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Pause()
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runtimeFatal("unreachable")
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}
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