From 4ca728bb28bb9d1066320555233c94fdc5d75e58 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Wed, 18 Aug 2021 19:51:42 +0200
Subject: processes now store a PID for debugging purposes

---
 src/kernel/proc.c | 4 ++++
 src/kernel/proc.h | 2 ++
 2 files changed, 6 insertions(+)

(limited to 'src')

diff --git a/src/kernel/proc.c b/src/kernel/proc.c
index eea651f..eb36caf 100644
--- a/src/kernel/proc.c
+++ b/src/kernel/proc.c
@@ -6,6 +6,7 @@
 
 struct process *process_first;
 struct process *process_current;
+uint32_t next_pid = 0;
 
 struct process *process_seed() {
 	struct process *proc = kmalloc(sizeof(struct process));
@@ -14,6 +15,7 @@ struct process *process_seed() {
 	proc->sibling = NULL;
 	proc->child   = NULL;
 	proc->parent  = NULL;
+	proc->id      = next_pid++;
 
 	process_first = proc;
 
@@ -41,6 +43,8 @@ struct process *process_fork(struct process *parent) {
 	child->parent  = parent;
 	parent->child  = child;
 
+	child->id      = next_pid++;
+
 	return child;
 }
 
diff --git a/src/kernel/proc.h b/src/kernel/proc.h
index f50ab33..6bafca9 100644
--- a/src/kernel/proc.h
+++ b/src/kernel/proc.h
@@ -15,6 +15,8 @@ struct process {
 	struct process *sibling;
 	struct process *child;
 	struct process *parent;
+
+	uint32_t id; // only for debugging, don't expose to userland
 };
 
 extern struct process *process_first;
-- 
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