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Bugfix: don't try to cull connections from an empty pool.

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The first step in culling connections was to take a subset of the pool's
connections from index 0 to numToCull. This leads to an error if
numToCull is also zero.
This commit is contained in:
Jonathan Bernard 2022-06-04 10:42:54 -05:00
parent 9625ac6a5e
commit 1d7c955805
2 changed files with 11 additions and 9 deletions
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2
fiber_orm.nimble
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@ -1,6 +1,6 @@
# Package # Package
version = "1.0.1" version = "1.0.2"
author = "Jonathan Bernard" author = "Jonathan Bernard"
description = "Lightweight Postgres ORM for Nim." description = "Lightweight Postgres ORM for Nim."
license = "GPL-3.0" license = "GPL-3.0"

2
src/fiber_orm/pool.nim
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@ -62,6 +62,8 @@ proc maintain(pool: DbConnPool): void =
let freeConns = pool.conns.filterIt(it.free) let freeConns = pool.conns.filterIt(it.free)
if pool.conns.len > pool.cfg.poolSize and freeConns.len > 0: if pool.conns.len > pool.cfg.poolSize and freeConns.len > 0:
let numToCull = min(freeConns.len, pool.conns.len - pool.cfg.poolSize) let numToCull = min(freeConns.len, pool.conns.len - pool.cfg.poolSize)
if numToCull > 0:
let toCull = freeConns[0..numToCull] let toCull = freeConns[0..numToCull]
pool.conns.keepIf((pc) => toCull.allIt(it.id != pc.id)) pool.conns.keepIf((pc) => toCull.allIt(it.id != pc.id))
for culled in toCull: for culled in toCull: