From 8ff768026dfa04d2e1a2c9c9f4cd8b08642004fa Mon Sep 17 00:00:00 2001
From: "Paul Buetow (europa)" <paul@buetow.org>
Date: Sun, 24 May 2015 21:10:43 +0100
Subject: add packages

---
 main.go            | 73 ------------------------------------------------------
 main/main.go       | 47 +++++++++++++++++++++++++++++++++++
 process/process.go | 35 ++++++++++++++++++++++++++
 3 files changed, 82 insertions(+), 73 deletions(-)
 delete mode 100644 main.go
 create mode 100644 main/main.go
 create mode 100644 process/process.go

diff --git a/main.go b/main.go
deleted file mode 100644
index 44ef0ab..0000000
--- a/main.go
+++ /dev/null
@@ -1,73 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"io/ioutil"
-	"log"
-	"regexp"
-)
-
-const (
-	STOP    = 0
-	GETPIDS = 1
-)
-
-type Program struct {
-	pid     int
-	command string
-}
-
-func gstatGatherPids(res chan<- string) {
-	re, _ := regexp.Compile("^[0-9]+$")
-
-	dir, err := ioutil.ReadDir("/proc/")
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	for _, fi := range dir {
-		name := fi.Name()
-		if re.MatchString(name) {
-			res <- name
-		}
-	}
-}
-
-func gstatGather(action <-chan int, done chan<- bool, res chan<- string) {
-	for {
-		switch <-action {
-		case STOP:
-			{
-				done <- true
-				break
-			}
-		case GETPIDS:
-			{
-				gstatGatherPids(res)
-				done <- true
-			}
-		}
-	}
-}
-
-func main() {
-	action := make(chan int)
-	done := make(chan bool)
-	res := make(chan string)
-
-	go gstatGather(action, done, res)
-
-	action <- GETPIDS
-	for {
-		switch <-done {
-		case false:
-			{
-				fmt.Println(<-res)
-			}
-		case true:
-			{
-				break
-			}
-		}
-	}
-}
diff --git a/main/main.go b/main/main.go
new file mode 100644
index 0000000..b8b5d39
--- /dev/null
+++ b/main/main.go
@@ -0,0 +1,47 @@
+package main
+
+import (
+	"fmt"
+	"github.com/buetow/gstat/process"
+)
+
+const (
+	STOP    = 0
+	GETPIDS = 1
+)
+
+func gstatGather(action <-chan int, res chan<- process.Process) {
+	for {
+		switch <-action {
+		case STOP:
+			{
+				break
+			}
+		case GETPIDS:
+			{
+				process.Gather(res)
+			}
+		}
+		close(res)
+	}
+}
+
+func main() {
+	action := make(chan int)
+	res := make(chan process.Process)
+
+	go gstatGather(action, res)
+
+	action <- GETPIDS
+	for {
+		process, more := <-res
+		if more {
+			fmt.Println(process.Cmdline)
+		} else {
+			break
+		}
+	}
+	action <- STOP
+
+	fmt.Println("Good bye")
+}
diff --git a/process/process.go b/process/process.go
new file mode 100644
index 0000000..4420b44
--- /dev/null
+++ b/process/process.go
@@ -0,0 +1,35 @@
+package process
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"regexp"
+	"strconv"
+)
+
+type Process struct {
+	Pid     int
+	Cmdline string
+}
+
+func Gather(res chan<- Process) {
+	re, _ := regexp.Compile("^[0-9]+$")
+
+	dir, err := ioutil.ReadDir("/proc/")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	for _, direntry := range dir {
+		name := direntry.Name()
+		if re.MatchString(name) {
+			pid, _ := strconv.Atoi(name)
+			bytes, err := ioutil.ReadFile(fmt.Sprintf("/proc/%d/cmdline", pid))
+			if err != nil {
+				log.Fatal(err)
+			}
+			res <- Process{Pid: pid, Cmdline: string(bytes)}
+		}
+	}
+}
-- 
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