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authorWim <wim@42.be>2021-10-16 23:11:32 +0200
committerWim <wim@42.be>2021-10-16 23:23:24 +0200
commit20f6c05ec50739d31f4dbe9fde0d223f2c43f6e8 (patch)
tree230edca06449a8d1755f08aabf45a03e07e6f17c /vendor/github.com/mattermost/logr/v2/options.go
parent57fce93af7f64f025cec6f3ed6088163086bc9fe (diff)
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Update vendor
Diffstat (limited to 'vendor/github.com/mattermost/logr/v2/options.go')
-rw-r--r--vendor/github.com/mattermost/logr/v2/options.go192
1 files changed, 192 insertions, 0 deletions
diff --git a/vendor/github.com/mattermost/logr/v2/options.go b/vendor/github.com/mattermost/logr/v2/options.go
new file mode 100644
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--- /dev/null
+++ b/vendor/github.com/mattermost/logr/v2/options.go
@@ -0,0 +1,192 @@
+package logr
+
+import (
+ "errors"
+ "time"
+)
+
+type Option func(*Logr) error
+
+type options struct {
+ maxQueueSize int
+ onLoggerError func(error)
+ onQueueFull func(rec *LogRec, maxQueueSize int) bool
+ onTargetQueueFull func(target Target, rec *LogRec, maxQueueSize int) bool
+ onExit func(code int)
+ onPanic func(err interface{})
+ enqueueTimeout time.Duration
+ shutdownTimeout time.Duration
+ flushTimeout time.Duration
+ useSyncMapLevelCache bool
+ maxPooledBuffer int
+ disableBufferPool bool
+ metricsCollector MetricsCollector
+ metricsUpdateFreqMillis int64
+ stackFilter map[string]struct{}
+}
+
+// MaxQueueSize is the maximum number of log records that can be queued.
+// If exceeded, `OnQueueFull` is called which determines if the log
+// record will be dropped or block until add is successful.
+// Defaults to DefaultMaxQueueSize.
+func MaxQueueSize(size int) Option {
+ return func(l *Logr) error {
+ if size < 0 {
+ return errors.New("size cannot be less than zero")
+ }
+ l.options.maxQueueSize = size
+ return nil
+ }
+}
+
+// OnLoggerError, when not nil, is called any time an internal
+// logging error occurs. For example, this can happen when a
+// target cannot connect to its data sink.
+func OnLoggerError(f func(error)) Option {
+ return func(l *Logr) error {
+ l.options.onLoggerError = f
+ return nil
+ }
+}
+
+// OnQueueFull, when not nil, is called on an attempt to add
+// a log record to a full Logr queue.
+// `MaxQueueSize` can be used to modify the maximum queue size.
+// This function should return quickly, with a bool indicating whether
+// the log record should be dropped (true) or block until the log record
+// is successfully added (false). If nil then blocking (false) is assumed.
+func OnQueueFull(f func(rec *LogRec, maxQueueSize int) bool) Option {
+ return func(l *Logr) error {
+ l.options.onQueueFull = f
+ return nil
+ }
+}
+
+// OnTargetQueueFull, when not nil, is called on an attempt to add
+// a log record to a full target queue provided the target supports reporting
+// this condition.
+// This function should return quickly, with a bool indicating whether
+// the log record should be dropped (true) or block until the log record
+// is successfully added (false). If nil then blocking (false) is assumed.
+func OnTargetQueueFull(f func(target Target, rec *LogRec, maxQueueSize int) bool) Option {
+ return func(l *Logr) error {
+ l.options.onTargetQueueFull = f
+ return nil
+ }
+}
+
+// OnExit, when not nil, is called when a FatalXXX style log API is called.
+// When nil, then the default behavior is to cleanly shut down this Logr and
+// call `os.Exit(code)`.
+func OnExit(f func(code int)) Option {
+ return func(l *Logr) error {
+ l.options.onExit = f
+ return nil
+ }
+}
+
+// OnPanic, when not nil, is called when a PanicXXX style log API is called.
+// When nil, then the default behavior is to cleanly shut down this Logr and
+// call `panic(err)`.
+func OnPanic(f func(err interface{})) Option {
+ return func(l *Logr) error {
+ l.options.onPanic = f
+ return nil
+ }
+}
+
+// EnqueueTimeout is the amount of time a log record can take to be queued.
+// This only applies to blocking enqueue which happen after `logr.OnQueueFull`
+// is called and returns false.
+func EnqueueTimeout(dur time.Duration) Option {
+ return func(l *Logr) error {
+ l.options.enqueueTimeout = dur
+ return nil
+ }
+}
+
+// ShutdownTimeout is the amount of time `logr.Shutdown` can execute before
+// timing out. An alternative is to use `logr.ShutdownWithContext` and supply
+// a timeout.
+func ShutdownTimeout(dur time.Duration) Option {
+ return func(l *Logr) error {
+ l.options.shutdownTimeout = dur
+ return nil
+ }
+}
+
+// FlushTimeout is the amount of time `logr.Flush` can execute before
+// timing out. An alternative is to use `logr.FlushWithContext` and supply
+// a timeout.
+func FlushTimeout(dur time.Duration) Option {
+ return func(l *Logr) error {
+ l.options.flushTimeout = dur
+ return nil
+ }
+}
+
+// UseSyncMapLevelCache can be set to true when high concurrency (e.g. >32 cores)
+// is expected. This may improve performance with large numbers of cores - benchmark
+// for your use case.
+func UseSyncMapLevelCache(use bool) Option {
+ return func(l *Logr) error {
+ l.options.useSyncMapLevelCache = use
+ return nil
+ }
+}
+
+// MaxPooledBufferSize determines the maximum size of a buffer that can be
+// pooled. To reduce allocations, the buffers needed during formatting (etc)
+// are pooled. A very large log item will grow a buffer that could stay in
+// memory indefinitely. This setting lets you control how big a pooled buffer
+// can be - anything larger will be garbage collected after use.
+// Defaults to 1MB.
+func MaxPooledBufferSize(size int) Option {
+ return func(l *Logr) error {
+ l.options.maxPooledBuffer = size
+ return nil
+ }
+}
+
+// DisableBufferPool when true disables the buffer pool. See MaxPooledBuffer.
+func DisableBufferPool(disable bool) Option {
+ return func(l *Logr) error {
+ l.options.disableBufferPool = disable
+ return nil
+ }
+}
+
+// SetMetricsCollector enables metrics collection by supplying a MetricsCollector.
+// The MetricsCollector provides counters and gauges that are updated by log targets.
+// `updateFreqMillis` determines how often polled metrics are updated. Defaults to 15000 (15 seconds)
+// and must be at least 250 so we don't peg the CPU.
+func SetMetricsCollector(collector MetricsCollector, updateFreqMillis int64) Option {
+ return func(l *Logr) error {
+ if collector == nil {
+ return errors.New("collector cannot be nil")
+ }
+ if updateFreqMillis < 250 {
+ return errors.New("updateFreqMillis cannot be less than 250")
+ }
+ l.options.metricsCollector = collector
+ l.options.metricsUpdateFreqMillis = updateFreqMillis
+ return nil
+ }
+}
+
+// StackFilter provides a list of package names to exclude from the top of
+// stack traces. The Logr packages are automatically filtered.
+func StackFilter(pkg ...string) Option {
+ return func(l *Logr) error {
+ if l.options.stackFilter == nil {
+ l.options.stackFilter = make(map[string]struct{})
+ }
+
+ for _, p := range pkg {
+ if p != "" {
+ l.options.stackFilter[p] = struct{}{}
+ }
+ }
+ return nil
+ }
+}