From a12e50e5a7dae52ed8bd5a24cc6576371e20985b Mon Sep 17 00:00:00 2001
From: Kimplul <kimi.h.kuparinen@gmail.com>
Date: Mon, 27 Dec 2021 20:40:44 +0200
Subject: Started work on syscalls

---
 common/tcb.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'common/tcb.c')

diff --git a/common/tcb.c b/common/tcb.c
index 5b00524..8a1e95e 100644
--- a/common/tcb.c
+++ b/common/tcb.c
@@ -3,6 +3,7 @@
 #include <apos/sp_tree.h>
 
 static struct sp_root t_root = (struct sp_root){0};
+static struct tcb *__tcb_cache[MAX_CPUS] = {0};
 
 #define tcb_container(x) \
 	container_of(x, struct tcb, sp_n)
@@ -53,3 +54,18 @@ struct tcb *threads_find(id_t tid)
 
 	return 0;
 }
+
+struct tcb *get_tcb(id_t pid)
+{
+	/* TODO: figure out how exactly thread IDs are related to process IDs,
+	 * and figure out mapping between them. */
+	return 0;
+}
+
+struct tcb *cur_tcb()
+{
+	/* TODO: probably keep an array of processor ID's somewhere where each
+	 * ID has a corresponding 'currently executing thread ID' field, and
+	 * reutrn that. */
+	return __tcb_cache[cpu_id()];
+}
-- 
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