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05cf8a6ecc
vmctl: support of the remote read protocol Signed-off-by: hagen1778 <roman@victoriametrics.com> Co-authored-by: hagen1778 <roman@victoriametrics.com>
37 lines
1.2 KiB
Go
37 lines
1.2 KiB
Go
package log
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import (
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"io"
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"github.com/go-kit/log"
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)
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// SwapLogger wraps another logger that may be safely replaced while other
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// goroutines use the SwapLogger concurrently. The zero value for a SwapLogger
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// will discard all log events without error.
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//
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// SwapLogger serves well as a package global logger that can be changed by
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// importers.
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type SwapLogger = log.SwapLogger
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// NewSyncWriter returns a new writer that is safe for concurrent use by
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// multiple goroutines. Writes to the returned writer are passed on to w. If
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// another write is already in progress, the calling goroutine blocks until
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// the writer is available.
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//
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// If w implements the following interface, so does the returned writer.
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//
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// interface {
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// Fd() uintptr
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// }
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func NewSyncWriter(w io.Writer) io.Writer {
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return log.NewSyncWriter(w)
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}
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// NewSyncLogger returns a logger that synchronizes concurrent use of the
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// wrapped logger. When multiple goroutines use the SyncLogger concurrently
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// only one goroutine will be allowed to log to the wrapped logger at a time.
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// The other goroutines will block until the logger is available.
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func NewSyncLogger(logger Logger) Logger {
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return log.NewSyncLogger(logger)
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}
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