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bail when calling spawn{} on nonactive/blocked events

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This commit is contained in:
Axel Kittenberger 2011-02-08 10:34:39 +00:00
parent 5a0117a9d7
commit 7188748d64
1 changed files with 19 additions and 4 deletions
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23
lsyncd.lua
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@ -2934,14 +2934,29 @@ function spawn(agent, binary, ...)
if type(binary) ~= "string" then
error("calling spawn(agent, binary, ...), binary is not a string", 2)
end
local dol = InletFactory.getDelayOrList(agent)
if not dol then
error("spawning with an unknown agent", 2)
end
-- checks if spawn is called on already active event
if dol.status then
if dol.status ~= "wait" then
error("Spawn() called on an non-waiting event", 2)
end
else -- is a list
for _, d in ipairs(dol) do
if d.status ~= "wait" and d.status ~= "block" then
error("Spawn() called on an non-waiting event list", 2)
end
end
end
local pid = lsyncd.exec(binary, ...)
if pid and pid > 0 then
local sync = InletFactory.getSync(agent)
-- delay or list
local dol = InletFactory.getDelayOrList(agent)
if not dol then
error("spawning with an unknown agent", 2)
end
if dol.status then
-- is a delay
dol.status = "active"