diff options
Diffstat (limited to 'kube2msb/src/vendor/github.com/emicklei/go-restful/compressor_cache.go')
-rw-r--r-- | kube2msb/src/vendor/github.com/emicklei/go-restful/compressor_cache.go | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/kube2msb/src/vendor/github.com/emicklei/go-restful/compressor_cache.go b/kube2msb/src/vendor/github.com/emicklei/go-restful/compressor_cache.go deleted file mode 100644 index ee42601..0000000 --- a/kube2msb/src/vendor/github.com/emicklei/go-restful/compressor_cache.go +++ /dev/null @@ -1,103 +0,0 @@ -package restful - -// Copyright 2015 Ernest Micklei. All rights reserved. -// Use of this source code is governed by a license -// that can be found in the LICENSE file. - -import ( - "compress/gzip" - "compress/zlib" -) - -// BoundedCachedCompressors is a CompressorProvider that uses a cache with a fixed amount -// of writers and readers (resources). -// If a new resource is acquired and all are in use, it will return a new unmanaged resource. -type BoundedCachedCompressors struct { - gzipWriters chan *gzip.Writer - gzipReaders chan *gzip.Reader - zlibWriters chan *zlib.Writer - writersCapacity int - readersCapacity int -} - -// NewBoundedCachedCompressors returns a new, with filled cache, BoundedCachedCompressors. -func NewBoundedCachedCompressors(writersCapacity, readersCapacity int) *BoundedCachedCompressors { - b := &BoundedCachedCompressors{ - gzipWriters: make(chan *gzip.Writer, writersCapacity), - gzipReaders: make(chan *gzip.Reader, readersCapacity), - zlibWriters: make(chan *zlib.Writer, writersCapacity), - writersCapacity: writersCapacity, - readersCapacity: readersCapacity, - } - for ix := 0; ix < writersCapacity; ix++ { - b.gzipWriters <- newGzipWriter() - b.zlibWriters <- newZlibWriter() - } - for ix := 0; ix < readersCapacity; ix++ { - b.gzipReaders <- newGzipReader() - } - return b -} - -// AcquireGzipWriter returns an resettable *gzip.Writer. Needs to be released. -func (b *BoundedCachedCompressors) AcquireGzipWriter() *gzip.Writer { - var writer *gzip.Writer - select { - case writer, _ = <-b.gzipWriters: - default: - // return a new unmanaged one - writer = newGzipWriter() - } - return writer -} - -// ReleaseGzipWriter accepts a writer (does not have to be one that was cached) -// only when the cache has room for it. It will ignore it otherwise. -func (b *BoundedCachedCompressors) ReleaseGzipWriter(w *gzip.Writer) { - // forget the unmanaged ones - if len(b.gzipWriters) < b.writersCapacity { - b.gzipWriters <- w - } -} - -// AcquireGzipReader returns a *gzip.Reader. Needs to be released. -func (b *BoundedCachedCompressors) AcquireGzipReader() *gzip.Reader { - var reader *gzip.Reader - select { - case reader, _ = <-b.gzipReaders: - default: - // return a new unmanaged one - reader = newGzipReader() - } - return reader -} - -// ReleaseGzipReader accepts a reader (does not have to be one that was cached) -// only when the cache has room for it. It will ignore it otherwise. -func (b *BoundedCachedCompressors) ReleaseGzipReader(r *gzip.Reader) { - // forget the unmanaged ones - if len(b.gzipReaders) < b.readersCapacity { - b.gzipReaders <- r - } -} - -// AcquireZlibWriter returns an resettable *zlib.Writer. Needs to be released. -func (b *BoundedCachedCompressors) AcquireZlibWriter() *zlib.Writer { - var writer *zlib.Writer - select { - case writer, _ = <-b.zlibWriters: - default: - // return a new unmanaged one - writer = newZlibWriter() - } - return writer -} - -// ReleaseZlibWriter accepts a writer (does not have to be one that was cached) -// only when the cache has room for it. It will ignore it otherwise. -func (b *BoundedCachedCompressors) ReleaseZlibWriter(w *zlib.Writer) { - // forget the unmanaged ones - if len(b.zlibWriters) < b.writersCapacity { - b.zlibWriters <- w - } -} |