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| author | LemonBoy <thatlemon@gmail.com> | 2020-03-13 18:40:18 +0100 |
|---|---|---|
| committer | LemonBoy <thatlemon@gmail.com> | 2020-03-13 18:40:18 +0100 |
| commit | e496ef26dabb3a2da4821c7c0c2e4ffc6f7d86ce (patch) | |
| tree | 50b089136dca1e7b999caa60a49cd3a9355575ce /lib/std | |
| parent | edcf8e0636c5a2674ce2b3e568929232c8cc61eb (diff) | |
| download | zig-e496ef26dabb3a2da4821c7c0c2e4ffc6f7d86ce.tar.gz zig-e496ef26dabb3a2da4821c7c0c2e4ffc6f7d86ce.zip | |
Nicer idle wait loop
Trying to acquire twice the same mutex generates an idle loop.
Diffstat (limited to 'lib/std')
| -rw-r--r-- | lib/std/debug.zig | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/std/debug.zig b/lib/std/debug.zig index cdbba2367b..f2c736bbba 100644 --- a/lib/std/debug.zig +++ b/lib/std/debug.zig @@ -278,8 +278,11 @@ pub fn panicExtra(trace: ?*const builtin.StackTrace, first_trace_addr: ?usize, c // Another thread is panicking, wait for the last one to finish // and call abort() - // XXX: Find a nicer way to loop forever - while (true) {} + // Here we sleep forever without hammering the CPU by causing a + // deadlock + var deadlock = std.Mutex.init(); + _ = deadlock.acquire(); + _ = deadlock.acquire(); } }, 1 => { |