//hyper/process: Emergency Commit #2

4 files changed, 194 insertions, 45 deletions

diff --git a/hyper/process/Makefile b/hyper/process/Makefile
index 7d61b28d..bbc1c2fb 100644
--- a/hyper/process/Makefile
+++ b/hyper/process/Makefile
@@ -1,14 +1,19 @@
+include $(GOROOT)/src/Make.inc
 
-A := 8
+GCIMPORTS = -I pkg/$(GOOS)_$(GOARCH)
+LDIMPORTS = -L pkg/$(GOOS)_$(GOARCH)
 
-.PHONY: all clean
-all: main
+TARG=main
+GOFILES=\
+	main.go\
 
-clean:
-	rm -f main *.$A
+include $(GOROOT)/src/Make.cmd
 
-%.$A: %.go
-	$Ag $<
+export GOPATH := $(PWD)
+.PHONY: prepare
+prepare:
+	#goinstall -v github.com/garyburd/twister/server
+	goinstall -v gorilla.googlecode.com/hg/gorilla/mux
+	goinstall -v $(PWD)/src/hyper/process
 
-%: %.$A
-	$Al -o $@ $<
+_go_.$O: prepare
diff --git a/hyper/process/main.go b/hyper/process/main.go
index 297be2cf..ebeeb6d6 100644
--- a/hyper/process/main.go
+++ b/hyper/process/main.go
@@ -1,52 +1,60 @@
 package main
 
-import "fmt"
+import "json"
+import "log"
+import "http"
+import "gorilla.googlecode.com/hg/gorilla/mux"
 import "os"
+import "fmt"
+
+import "hyper/process"
 
+var proc = map[string] *hyper.Process{}
 
-func reader(file *os.File) {
-  var b []byte = make([]byte, 1024)
-  var err os.Error = nil
-  for err == nil {
-    var n int
-    n, err = file.Read(b)
-    fmt.Printf("data: %d, %s\n", n, b)
+// TODO Retrieve Process, Write, Kill [autokill], get exit code
+
+func RespondJSON(res http.ResponseWriter, v interface{}) os.Error {
+  content, err := json.Marshal(v)
+  if err == nil {
+    log.Printf("< %s", content)
+    res.Header().Set("Content-Type", "application/json; charset=\"utf-8\"")
+    res.WriteHeader(http.StatusOK)
+    res.Write(content)
+  } else {
+    log.Printf("%s while json.Marshal(%s)", err, v)
   }
+  return err
 }
 
-func main() {
-  var name = "/usr/bin/bc"
-  var argv = []string{ "bc" }
-  var envv = []string{ "FOO=23" }
-  //var chroot = false
-  var dir = "/var/empty"
-  var files [3][2]*os.File
-  var err os.Error
- 
-  for i, _ := range files {
-    files[i][0], files[i][1], err = os.Pipe()
-    err = err
+func CreateProcessHandler(res http.ResponseWriter, req *http.Request) {
+  if p, err := hyper.NewProcess(req); err == nil {
+    id := p.Id()
+    proc[id] = p
+    RespondJSON(res, &map[string]string{
+      "path": fmt.Sprintf("/proc/%s", id),
+    })
+  } else {
+    log.Printf("%s", err)
+    res.WriteHeader(http.StatusInternalServerError)
   }
+}
 
-  var attr = &os.ProcAttr{
-    Dir: dir,
-    Env: envv,
-    Files: []*os.File{ /*files[0][0] */ os.Stdin, files[1][1], files[2][1]},
+func RetrieveProcess(res http.ResponseWriter, req *http.Request) {
+  if p := proc[mux.Vars(req)["id"]]; p != nil {
+    RespondJSON(res, p)
+  } else {
+    res.WriteHeader(http.StatusNotFound)
   }
+}
 
-  var p *os.Process
+func main() {
 
-  p, err = os.StartProcess(name, argv, attr)
+  // Gorilla
+  mux.HandleFunc("/proc", CreateProcessHandler).Methods("POST")
+  mux.HandleFunc("/proc/{id}", RetrieveProcess).Methods("GET")
 
-  for _, file := range attr.Files {
-    file.Close()
+  err := http.ListenAndServe(":8888", mux.DefaultRouter)
+  if err != nil {
+    log.Fatal("ListenAndServe: ", err.String())
   }
-
-  p=p
-
-  go reader(files[1][0])
-  reader(files[2][0])
-
-  fmt.Printf("hello, world\n")
-
 }
diff --git a/hyper/process/src/hyper/process/Makefile b/hyper/process/src/hyper/process/Makefile
new file mode 100644
index 00000000..7ecda716
--- /dev/null
+++ b/hyper/process/src/hyper/process/Makefile
@@ -0,0 +1,11 @@
+include ${GOROOT}/src/Make.inc
+
+TARG=hyper/process
+
+GOFILES=\
+	process.go\
+
+#DEPS=\
+#	gorilla.googlecode.com/hg/gorilla/context\
+
+include ${GOROOT}/src/Make.pkg
diff --git a/hyper/process/src/hyper/process/process.go b/hyper/process/src/hyper/process/process.go
new file mode 100644
index 00000000..a52197f0
--- /dev/null
+++ b/hyper/process/src/hyper/process/process.go
@@ -0,0 +1,125 @@
+package hyper
+
+import "fmt"
+import "http"
+import "bytes"
+import "json"
+import "os"
+
+type Process struct {
+  Path string               `json:"path"`
+  Argv []string             `json:"argv"`
+  Envp map[string]string    `json:"envp"`
+  //Stdin string              `json:"stdin"`
+  Stdout string             `json:"stdout"`
+  Stderr string             `json:"stderr"`
+  process *os.Process
+  process_stdin *os.File
+  process_stdout *os.File
+  process_stderr *os.File
+  id string
+}
+
+func (p *Process) Id() string {
+  return p.id
+}
+
+func NewProcess(req *http.Request) (*Process, os.Error) {
+  body := make([]byte, 4096)
+  _, err := req.Body.Read(body)
+  if err != nil {
+    return nil, err
+  }
+
+  body = bytes.TrimRight(body, string([]byte{0}))
+
+  var p Process
+
+  if err := json.Unmarshal(body, &p); err != nil {
+    return nil, err
+  }
+
+  p.id = gensym()
+
+  if err := p.Start(); err != nil {
+    return nil, err
+  }
+
+  return &p, nil
+}
+
+func (hp *Process) Write(b []byte) {
+  n, err := hp.process_stdin.Write(b)
+  if err != nil {
+    fmt.Printf("Write: %s\n", err)
+  } else {
+    fmt.Printf("Wrote: %d bytes\n", n)
+  }
+}
+
+func (hp *Process) Start() os.Error {
+  var name = hp.Path //os.Args[1] //"/usr/b"
+  var argv = hp.Argv //os.Args[1:] //[]string{ "bc" }
+  //var chroot = false
+  //var dir = "/var/empty"
+  var files [3][2]*os.File
+  var err os.Error
+
+  for i, _ := range files {
+    files[i][0], files[i][1], err = os.Pipe()
+    if err != nil {
+      return err
+    }
+  }
+
+  var env []string
+  for k, v := range hp.Envp {
+    env = append(env, fmt.Sprintf("%s=%s", k, v))
+  }
+
+  var attr = &os.ProcAttr{
+    //Dir: dir,
+    Env: env, //os.Environ(),
+    Files: []*os.File{ files[0][0], files[1][1], files[2][1]},
+  }
+
+  //var foo, _ = json.Marshal(attr)
+  //fmt.Printf("%s\n", foo)
+
+  hp.process, err = os.StartProcess(name, argv, attr)
+  if err != nil {
+    return err
+  }
+
+  hp.process_stdin = files[0][1]
+  hp.process_stdout = files[1][0]
+  hp.process_stderr = files[2][0]
+
+  for _, file := range attr.Files {
+    file.Close()
+  }
+
+  go reader(hp.process_stdout)
+  go reader(hp.process_stderr)
+  return nil
+}
+
+func reader(file *os.File) {
+  var b []byte = make([]byte, 1024)
+  var err os.Error = nil
+  for err == nil {
+    var n int
+    n, err = file.Read(b)
+    fmt.Printf("data: %d, %s\n", n, b)
+  }
+}
+
+func gensym() string {
+  f, _ := os.Open("/dev/urandom") 
+  b := make([]byte, 16) 
+  f.Read(b) 
+  f.Close() 
+  uuid := fmt.Sprintf("%x-%x-%x-%x-%x", b[0:4], b[4:6], b[6:8], b[8:10], b[10:]) 
+  return uuid
+}
+