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| author | Matthew Wild <mwild1@gmail.com> | 2018-03-16 22:31:12 +0000 |
|---|---|---|
| committer | Matthew Wild <mwild1@gmail.com> | 2018-03-16 22:31:12 +0000 |
| commit | 3059744ca4e528a216a506414ade709afe462b6c (patch) | |
| tree | 655e6a6434a1bc90a916dea7b2ba493fca0f3b4f | |
| parent | 357476b690e4815c02003dc69e7508b123a2a9a6 (diff) | |
| download | prosody-3059744ca4e528a216a506414ade709afe462b6c.tar.gz prosody-3059744ca4e528a216a506414ade709afe462b6c.zip | |
util.async: Add comment
| -rw-r--r-- | util/async.lua | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/util/async.lua b/util/async.lua index e16d5b24..205db183 100644 --- a/util/async.lua +++ b/util/async.lua @@ -21,6 +21,7 @@ local function runner_continue(thread) -- Running the coroutine failed, which means we have to find the runner manually, -- in order to inform the error handler local level = 0; + -- Find the 'level' of the top-most function (0 == current level, 1 == caller, ...) while debug.getinfo(thread, level, "") do level = level + 1; end ok, runner = debug.getlocal(thread, level-1, 1); assert(ok == "self", "unexpected async state: variable mismatch"); |