From 059f08cb73ef2b1631f2c89f8c524e27888f6ba5 Mon Sep 17 00:00:00 2001
From: Christian Cunningham <cc@localhost>
Date: Sun, 2 Jan 2022 15:53:57 -0800
Subject: Expanded upon memory library

---
 src/sys/schedule.c      |  2 ++
 src/sys/schedule.flat.c | 32 +++++++++++++++++++++++++++++
 src/sys/schedule.h      |  1 +
 src/sys/schedule.ll.c   | 13 ++++++++++++
 src/sys/schedule.q.c    | 54 +++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 102 insertions(+)
 create mode 100644 src/sys/schedule.flat.c
 create mode 100644 src/sys/schedule.ll.c
 create mode 100644 src/sys/schedule.q.c

(limited to 'src/sys')

diff --git a/src/sys/schedule.c b/src/sys/schedule.c
index f920b0e..8cf2780 100644
--- a/src/sys/schedule.c
+++ b/src/sys/schedule.c
@@ -2,6 +2,7 @@
 #include "../lib/ll.h"
 #include "../lib/q.h"
 
+#ifdef IGNORE
 #ifdef FLAT
 static struct Task* task_list[256];
 
@@ -79,3 +80,4 @@ void execute_task(void)
 	}
 }
 #endif
+#endif
diff --git a/src/sys/schedule.flat.c b/src/sys/schedule.flat.c
new file mode 100644
index 0000000..6eb0d14
--- /dev/null
+++ b/src/sys/schedule.flat.c
@@ -0,0 +1,32 @@
+#ifdef FLAT
+
+#include "../sys/schedule.h"
+static struct Task* task_list[256];
+
+static struct Scheduler scheduler = {
+	.tasks = task_list,
+};
+
+static unsigned int ntask_i = 0;
+
+void add_task(struct Task* t)
+{
+	scheduler.tasks[ntask_i] = t;
+	ntask_i += 1;
+	if (ntask_i > 256) {
+		ntask_i = 0;
+	}
+}
+
+unsigned int get_task_length(void)
+{
+	return ntask_i;
+}
+
+void execute_task(void)
+{
+	if (scheduler.tasks[ntask_i-1] != 0)
+		scheduler.tasks[ntask_i-1]->task();
+}
+
+#endif
diff --git a/src/sys/schedule.h b/src/sys/schedule.h
index 04dad6a..2fd6acd 100644
--- a/src/sys/schedule.h
+++ b/src/sys/schedule.h
@@ -22,6 +22,7 @@ struct Scheduler {
 };
 #endif
 
+void add_fxn(void (*task)(void), unsigned char priority);
 void add_task(struct Task*);
 unsigned int get_task_length(void);
 void execute_task(void);
diff --git a/src/sys/schedule.ll.c b/src/sys/schedule.ll.c
new file mode 100644
index 0000000..d9ab954
--- /dev/null
+++ b/src/sys/schedule.ll.c
@@ -0,0 +1,13 @@
+#ifdef LL
+
+#include "../sys/schedule.h"
+#include "../lib/ll.h"
+static struct LL bl = {
+	.prev = 0,
+	.next = 0,
+};
+static struct Scheduler scheduler = {
+	.tasks = &bl,
+};
+
+#endif
diff --git a/src/sys/schedule.q.c b/src/sys/schedule.q.c
new file mode 100644
index 0000000..818ba66
--- /dev/null
+++ b/src/sys/schedule.q.c
@@ -0,0 +1,54 @@
+#if !(defined(LL) || defined(FLAT))
+#include "../sys/schedule.h"
+#include "../lib/q.h"
+#include "../lib/mem.h"
+
+static struct Q_base bq = {
+	.next = 0,
+	.last = 0,
+};
+static struct Scheduler  scheduler = {
+	.tasks = &bq,
+};
+
+void add_fxn(void (*task)(void), unsigned char priority)
+{
+	struct Task* t = (struct Task*)malloc(sizeof(struct Task));
+	t->priority = priority;
+	t->task = task;
+	add_task(t);
+}
+
+void add_task(struct Task* t)
+{
+	pushq(scheduler.tasks, t);
+}
+
+unsigned int get_task_length(void)
+{
+	unsigned int length = 0;
+	if (scheduler.tasks->last == 0)
+		return length;
+	else if (scheduler.tasks->next == scheduler.tasks->last)
+		return 1;
+	else {
+		struct Q* q = scheduler.tasks->next;
+		length += 1;
+		while (q->next != 0) {
+			q = q->next;
+			length += 1;
+		}
+		return length;
+	}
+}
+
+void execute_task(void)
+{
+	if (scheduler.tasks->last != 0) {
+		struct Task* tsk = (struct Task*)scheduler.tasks->next->data;
+		(tsk->task)();
+		popq(scheduler.tasks);
+	}
+}
+
+#endif
-- 
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