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logtail: rename the unused CheckLogs to DrainLogs

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Its semantics has changed slightly, this will let us use it to
drive batched logging in special circumstances.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
This commit is contained in:
David Crawshaw
2020-03-20 13:13:36 +11:00
parent 51a12d1307
commit 6ddbcab71e
2 changed files with 41 additions and 15 deletions
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3
logtail/buffer.go
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@@ -15,6 +15,9 @@ type Buffer interface {
// TryReadLine tries to read a log line from the ring buffer.
// If no line is available it returns a nil slice.
// If the ring buffer is closed it returns io.EOF.
//
// The returned slice may point to data that will be overwritten
// by a subsequent call to TryReadLine.
TryReadLine() ([]byte, error)
// Write writes a log line into the ring buffer.