| commit | e82d152e66e81812a5c6ebf075cc99efd2602b19 | [log] [tgz] |
|---|---|---|
| author | Joe Tsai <joetsai@digital-static.net> | Tue Sep 18 12:52:39 2018 -0700 |
| committer | Joe Tsai <thebrokentoaster@gmail.com> | Wed Sep 19 18:01:04 2018 +0000 |
| tree | ebcc63f40fa75e8fe4e118a2e4ae1150c4665366 | |
| parent | 620bd5a3bc640f60a00d8b49c27c51e8ce67e67b [diff] |
fmt: fix usage of sync.Pool The current usage of sync.Pool is leaky because it stores an arbitrary sized buffer into the pool. However, sync.Pool assumes that all items in the pool are interchangeable from a memory cost perspective. Due to the unbounded size of a buffer that may be added, it is possible for the pool to eventually pin arbitrarily large amounts of memory in a live-lock situation. As a simple fix, we just set a maximum size that we permit back into the pool. We do not need to fix the use of a sync.Pool in scan.go since the free method has always enforced a maximum capacity since the first commit of the scan logic. Fixes #27740 Updates #23199 Change-Id: I875278f7dba42625405df36df3e9b028252ce5e3 Reviewed-on: https://go-review.googlesource.com/136116 Reviewed-by: Bryan C. Mills <bcmills@google.com> Run-TryBot: Bryan C. Mills <bcmills@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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