ctx creation and customition #108
Description
Please answer these questions before submitting your issue. Thanks!
What version of Go are you using (go version)?
go version go1.15.9 linux/amd64
What operating system and processor architecture are you using (go env)?
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/xx/.cache/go-build"
GOENV="/home/xx/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/xx/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/xx/go"
GOPRIVATE=""
GOPROXY=""
GOROOT="/usr/lib/go-1.15"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/lib/go-1.15/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build605241201=/tmp/go-build -gno-record-gcc-switches"
What did you do?
m wondering if we could export the ctx creation to the users so that they can make some customition, i have noticed the very early issue #17 and i did it myself by adding the following code to zstd_streaming.go, but maybe it's really not a good impl.
#cgo CPPFLAGS: -DZSTD_MULTITHREAD
#cgo CFLAGS: -pthread
func (w *Writer) SetNbWorkers(n int) error {
if w.firstError != nil {
return w.firstError
}
if err := getError(int(C.ZSTD_CCtx_setParameter(w.ctx, C.ZSTD_c_nbWorkers, C.int(n)))); err != nil {
w.firstError = err
return err
}
return nil
}What did you expect to see?
compress&decompress ctx creation & customition avaliable
What did you see instead?
ctx created by the lib internally and it's not accessable outside