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authorKim Alvefur <zash@zash.se>2022-02-22 14:17:10 +0100
committerKim Alvefur <zash@zash.se>2022-02-22 14:17:10 +0100
commitac06985604e2def6e1414113fd3266243b944303 (patch)
treecd0475228a34e4b81635f9486b70cce3fe709f7a
parent1d20ec63e66f04d0da8470d2f06c98be25960de7 (diff)
downloadprosody-ac06985604e2def6e1414113fd3266243b944303.tar.gz
prosody-ac06985604e2def6e1414113fd3266243b944303.zip
util.async: Optionally allow too many 'done' callbacks
Sometimes, like in mod_c2s and mod_s2s during shutdown, all you want is to wait for the first done() and not complicate things.
-rw-r--r--util/async.lua4
1 files changed, 2 insertions, 2 deletions
diff --git a/util/async.lua b/util/async.lua
index ece589cb..2830238f 100644
--- a/util/async.lua
+++ b/util/async.lua
@@ -73,7 +73,7 @@ local function runner_continue(thread)
return true;
end
-local function waiter(num)
+local function waiter(num, allow_many)
local thread = checkthread();
num = num or 1;
local waiting;
@@ -85,7 +85,7 @@ local function waiter(num)
num = num - 1;
if num == 0 and waiting then
runner_continue(thread);
- elseif num < 0 then
+ elseif not allow_many and num < 0 then
error("done() called too many times");
end
end;