coredns/plugin/cache/fuzz.go

// +build fuzz

package cache

import (
	"github.com/coredns/coredns/plugin/pkg/fuzz"
)

// Fuzz fuzzes cache.
func Fuzz(data []byte) int {
	return fuzz.Do(New(), data)
}
fuzz: put fuzzing stuff in own build tag (#1215) No need to have this build all the time. 2017-11-10 13:59:42 +00:00			`// +build fuzz`

Add fuzzing infrastructure (#1118) Fix file/fuzz.go build and docs in Makefile.fuzz Each plugin can add a fuzz.go to join the fuzzing craze. pkg/fuzz/do.go could be made a lot smarter, but is probably good enough for starters. $ make -f Makefile.fuzz <plugin> will build with go-fuzz-build and then execute a go-fuzz run. Each plugin's fuzz run uses a per-plugin directory to store the fuzz data. 2017-09-29 22:28:13 +01:00			`package cache`

			`import (`
			`"github.com/coredns/coredns/plugin/pkg/fuzz"`
			`)`

			`// Fuzz fuzzes cache.`
			`func Fuzz(data []byte) int {`
plugin/cache: Fix prefetching issues (#1363) * Improve plugin/cache metrics * Add coredns_cache_prefetch_total metric to track number of prefetches. * Remove unnecessary Cache.get() call which would incorrectly increment cache counters. * Initialize all counters and gauges at zero. * Allow prefetching of a single request per ttl The original implementation didn't allow prefetching queries which are only requested once during the duration of a TTL. The minimum amount of queries which had to be seen was therefore capped at 2. This change also implements a real prefetch test. The existing test was a noop and always passed regardless of any prefetch implementation. * Fix prefetching for items with a short TTL The default prefetch threshold (percentage) is 10% of the lifetime of a cache item. With the previous implementation, this disabled prefetching for all items with a TTL < 10s (the resulting percentage would be 0, at which point a cached item is already discarded). This change uses a time based threshold calculation and ensures that a prefetch is triggered at a TTL of 1 at the latest. * Fix wrong duration reporting of cached responses The logging and metrics plugins (among others) included the duration of a cache prefetch in the request latency of client request. This change fixes this wrong reporting and executes the prefetch request in a goroutine in the background. 2018-01-17 08:35:22 +01:00			`return fuzz.Do(New(), data)`
Add fuzzing infrastructure (#1118) Fix file/fuzz.go build and docs in Makefile.fuzz Each plugin can add a fuzz.go to join the fuzzing craze. pkg/fuzz/do.go could be made a lot smarter, but is probably good enough for starters. $ make -f Makefile.fuzz <plugin> will build with go-fuzz-build and then execute a go-fuzz run. Each plugin's fuzz run uses a per-plugin directory to store the fuzz data. 2017-09-29 22:28:13 +01:00			`}`