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tailscale/util
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Brad Fitzpatrick a8f3c861a4 util/progresstracking: add Ticker, NewWriter, and CountingWriter 
Add three new helpers to the existing progresstracking package:

  - Ticker: spawns a 1 Hz goroutine that calls a report function with
    the current value of an atomic counter and a total. Returns a stop
    function (safe to call multiple times via sync.OnceFunc) that fires
    one final report and blocks until the goroutine exits.

  - NewWriter: wraps an io.Writer and calls onProgress at most once per
    interval with the cumulative byte count.

  - CountingWriter: an io.Writer that atomically counts bytes written,
    for use with Ticker.

These will be used by the appliance flash and OTA update code in
subsequent commits.

Updates #1866

Change-Id: If353cea6506f5351b6fb19bfdb7bc9b78fe7855e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2026-07-01 10:02:05 -07:00
..
backoff all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
bufiox derp,types,util: use bufio Peek+Discard for allocation-free fast reads (#19067) 2026-03-24 10:52:20 -04:00
checkchange all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
cibuild util/cibuild, cache_key_test: skip TestTsgoRevInCacheKey outside Tailscale CI 2026-05-14 15:55:05 -07:00
clientmetric all: fix six tests that failed with -count=2 2026-04-13 18:52:57 -07:00
cloudenv util/cloudenv: detect Hetzner Cloud 2026-06-23 11:10:59 -07:00
cloudinfo all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
cmpver util/cmpver: add a test for comparing three-digit versions 2026-06-25 10:02:50 +01:00
codegen all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
ctxkey all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
deephash cmd/vet/lowerell, drive/driveimpl: forbid variables named "l" or "I" 2026-05-04 14:03:28 -07:00
def util: add parse fallback helpers (#20022) 2026-06-15 15:58:51 -07:00
dirwalk all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
dnsname all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
eventbus all: don't repeat the the word "the" unnecessarily 2026-06-18 16:32:08 +01:00
execqueue all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
goroutines all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
groupmember all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
hashx all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
httphdr all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
httpm util/httpm: open .git/index to defeat Go test caching 2026-04-15 15:44:19 -07:00
limiter all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
lineiter all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
lineread all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
linuxfw wgengine/router/osrouter,util/linuxfw: remove orphaned tailnet addrs (#20199) 2026-06-24 13:41:36 -07:00
lru all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
mak all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
multierr all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
must all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
nocasemaps all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
osdiag util/osdiag: fix typo in comment (reciever -> receiver) 2026-03-23 12:54:38 +00:00
osshare all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
osuser util/osuser: extend id command fallback for group IDs to freebsd 2026-03-09 08:39:07 +00:00
precompress all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
progresstracking util/progresstracking: add Ticker, NewWriter, and CountingWriter 2026-07-01 10:02:05 -07:00
prompt all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
qrcodes all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
quarantine all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
race all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
racebuild all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
rands all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
reload all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
ringlog all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
safediff all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
set util/set: add iterator support to Set[T] (#20159) 2026-06-18 00:12:56 -07:00
singleflight all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
slicesx all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
stringsx all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
syspolicy cmd/tailscaled, util/syspolicy: add JSON syspolicy file support 2026-06-30 13:10:16 -07:00
testenv all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
truncate all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
usermetric all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
vizerror all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
winutil all: don't repeat the the word "the" unnecessarily 2026-06-18 16:32:08 +01:00
zstdframe all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00