From 22c1d37b7a541c9ae5e4e9b841dacceccbb20785 Mon Sep 17 00:00:00 2001
From: Sudhabindu Das <sudhabindu1@gmail.com>
Date: Sat, 1 May 2021 22:09:16 +0530
Subject: [PATCH 1/3] (WIP )adding pgrp and sid

---
 process.go         |  6 ++++++
 process_darwin.go  | 10 ++++++++++
 process_freebsd.go |  8 ++++++++
 process_unix.go    |  4 ++++
 process_windows.go | 10 ++++++++++
 5 files changed, 38 insertions(+)

diff --git a/process.go b/process.go
index 2b5e8ed..987134b 100644
--- a/process.go
+++ b/process.go
@@ -16,6 +16,12 @@ type Process interface {
 	// PPid is the parent process ID for this process.
 	PPid() int
 
+	// Pgid is the process group ID of the process
+	Pgrp() int
+
+	// Sid is the session ID of the process
+	Sid() int
+
 	// Executable name running this process. This is not a path to the
 	// executable.
 	Executable() string
diff --git a/process_darwin.go b/process_darwin.go
index 5ee87fb..d7192f1 100644
--- a/process_darwin.go
+++ b/process_darwin.go
@@ -12,6 +12,8 @@ import (
 type DarwinProcess struct {
 	pid    int
 	ppid   int
+	pgrp   int
+	sid    int
 	binary string
 }
 
@@ -23,6 +25,14 @@ func (p *DarwinProcess) PPid() int {
 	return p.ppid
 }
 
+func (p *DarwinProcess) Pgrp() int {
+	return p.pgrp
+}
+
+func (p *DarwinProcess) Sid() int {
+	return p.sid
+}
+
 func (p *DarwinProcess) Executable() string {
 	return p.binary
 }
diff --git a/process_freebsd.go b/process_freebsd.go
index 130acbe..3fd712c 100644
--- a/process_freebsd.go
+++ b/process_freebsd.go
@@ -121,6 +121,14 @@ func (p *UnixProcess) PPid() int {
 	return p.ppid
 }
 
+func (p *UnixProcess) Pgrp() int {
+	return p.pgrp
+}
+
+func (p *UnixProcess) Sid() int {
+	return p.sid
+}
+
 func (p *UnixProcess) Executable() string {
 	return p.binary
 }
diff --git a/process_unix.go b/process_unix.go
index cd217a8..7f62ecd 100644
--- a/process_unix.go
+++ b/process_unix.go
@@ -29,6 +29,10 @@ func (p *UnixProcess) PPid() int {
 	return p.ppid
 }
 
+func (p *UnixProcess) Pgrp() int {
+	return p.pgrp
+}
+
 func (p *UnixProcess) Executable() string {
 	return p.binary
 }
diff --git a/process_windows.go b/process_windows.go
index f151974..99c58ab 100644
--- a/process_windows.go
+++ b/process_windows.go
@@ -42,6 +42,8 @@ type PROCESSENTRY32 struct {
 type WindowsProcess struct {
 	pid  int
 	ppid int
+	pgrp int
+	sid  int
 	exe  string
 }
 
@@ -53,6 +55,14 @@ func (p *WindowsProcess) PPid() int {
 	return p.ppid
 }
 
+func (p *WindowsProcess) Pgrp() int {
+	return p.pgrp
+}
+
+func (p *WindowsProcess) Sid() {
+	return p.sid
+}
+
 func (p *WindowsProcess) Executable() string {
 	return p.exe
 }

From 4b0890f769e5238a4fe83ad5ee64a839f6b5f026 Mon Sep 17 00:00:00 2001
From: Sudhabindu Das <sudhabindu1@gmail.com>
Date: Sat, 1 May 2021 22:13:02 +0530
Subject: [PATCH 2/3] added Sid to unix_process

---
 process_unix.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/process_unix.go b/process_unix.go
index 7f62ecd..7e16c21 100644
--- a/process_unix.go
+++ b/process_unix.go
@@ -33,6 +33,10 @@ func (p *UnixProcess) Pgrp() int {
 	return p.pgrp
 }
 
+func (p *UnixProcess) Sid() int {
+	return p.sid
+}
+
 func (p *UnixProcess) Executable() string {
 	return p.binary
 }

From 81116e4c8a66d617f21d3b1536dd35f0c8b48727 Mon Sep 17 00:00:00 2001
From: Sudhabindu Das <sudhabindu1@gmail.com>
Date: Sat, 1 May 2021 22:43:57 +0530
Subject: [PATCH 3/3] (temp) using syscall to get pgid and sid

---
 process.go        | 2 +-
 process_darwin.go | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/process.go b/process.go
index 987134b..57e1b8b 100644
--- a/process.go
+++ b/process.go
@@ -16,7 +16,7 @@ type Process interface {
 	// PPid is the parent process ID for this process.
 	PPid() int
 
-	// Pgid is the process group ID of the process
+	// Pgrp is the process group ID of the process
 	Pgrp() int
 
 	// Sid is the session ID of the process
diff --git a/process_darwin.go b/process_darwin.go
index d7192f1..8ce55ea 100644
--- a/process_darwin.go
+++ b/process_darwin.go
@@ -73,9 +73,13 @@ func processes() ([]Process, error) {
 
 	darwinProcs := make([]Process, len(procs))
 	for i, p := range procs {
+		pgid, _ := syscall.Getpgid(int(p.Pid))
+		sid, _ := syscall.Getsid(int(p.Pid))
 		darwinProcs[i] = &DarwinProcess{
 			pid:    int(p.Pid),
 			ppid:   int(p.PPid),
+			pgrp:   pgid,
+			sid:    sid,
 			binary: darwinCstring(p.Comm),
 		}
 	}