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poor mans serialisation to make up for the lack of demuxing

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This commit is contained in:
Echsecutor 2016-09-01 10:55:14 +02:00
parent 05d7ae88fa
commit 582cecb3ef
1 changed files with 15 additions and 7 deletions
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22
caddyhttp/fastcgi/fastcgi.go
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@ -12,12 +12,14 @@ import (
"path/filepath"
"strconv"
"strings"
"sync"
"github.com/mholt/caddy/caddyhttp/httpserver"
)
// for persistent fastcgi connections
var persistent_connections map[string]*FCGIClient
var poor_mans_serialisation map[string]*sync.Mutex
// Handler is a middleware type that can handle requests as a FastCGI client.
type Handler struct {
@ -77,21 +79,28 @@ func (h Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error)
// Connect to FastCGI gateway
network, address := rule.parseAddress()
// re use connection, if possible
if persistent_connections == nil{
persistent_connections = make(map[string]*FCGIClient)
if persistent_connections == nil {
persistent_connections = make(map[string]*FCGIClient)
poor_mans_serialisation = make(map[string]*sync.Mutex)
}
mut, ok := poor_mans_serialisation[network+address]
if !ok || mut == nil {
poor_mans_serialisation[network+address] = new(sync.Mutex)
}
poor_mans_serialisation[network+address].Lock()
defer poor_mans_serialisation[network+address].Unlock()
fcgiBackend, ok := persistent_connections[network+address]
// otherwise dial:
if(!ok || fcgiBackend == nil){
if !ok || fcgiBackend == nil {
var err error
persistent_connections[network+address], err = Dial(network, address)
if err != nil {
return http.StatusBadGateway, err
}
fcgiBackend = persistent_connections[network+address]
fcgiBackend = persistent_connections[network+address]
}
var resp *http.Response
@ -107,7 +116,6 @@ func (h Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error)
resp, err = fcgiBackend.Post(env, r.Method, r.Header.Get("Content-Type"), r.Body, contentLength)
}
if err != nil && err != io.EOF {
persistent_connections[network+address].Close()
persistent_connections[network+address] = nil