Commit Graph

4 Commits (2dd71e64ac11675e22e17fd4c2b2afd1d99009e6)

Author SHA1 Message Date
Andrew Dunham 93cd2ab224 util/singleflight: add DoChanContext
This is a variant of DoChan that supports context propagation, such that
the context provided to the inner function will only be canceled when
there are no more waiters for a given key. This can be used to
deduplicate expensive and cancelable calls among multiple callers
safely.

Updates #11935

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ibe1fb67442a854babbc6924fd8437b02cc9e7bcf
6 months ago
Brad Fitzpatrick 7c1d6e35a5 all: use Go 1.22 range-over-int
Updates #11058

Change-Id: I35e7ef9b90e83cac04ca93fd964ad00ed5b48430
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Will Norris 71029cea2d all: update copyright and license headers
This updates all source files to use a new standard header for copyright
and license declaration.  Notably, copyright no longer includes a date,
and we now use the standard SPDX-License-Identifier header.

This commit was done almost entirely mechanically with perl, and then
some minimal manual fixes.

Updates #6865

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Brad Fitzpatrick 59ed846277 util/singleflight: add fork of singleflight with generics
Forked from golang.org/x/sync/singleflight at
the x/sync repo's commit 67f06af15bc961c363a7260195bcd53487529a21

Updates golang/go#53427

Change-Id: Iec2b47b7777940017bb9b3db9bd7d93ba4a2e394
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago