Commit Graph

5 Commits (6ab39b7bcd259a7cf4adb9331586a64698c85dcc)

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
5 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
Cuong Manh Le a7efc7bd17 util/singleflight: sync with upstream
Sync with golang.org/x/sync/singleflight at commit
8fcdb60fdcc0539c5e357b2308249e4e752147f1

Fixes #5790

Signed-off-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2 years ago
Brad Fitzpatrick 116f55ff66 all: gofmt for Go 1.19
Updates #5210

Change-Id: Ib02cd5e43d0a8db60c1f09755a8ac7b140b670be
Signed-off-by: Brad Fitzpatrick <bradfitz@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