Huge compositor, timer and yielding improvements

2 files changed, 16 insertions, 1 deletions

diff --git a/kernel/features/io.c b/kernel/features/io.c
index da179ab..ac599e2 100644
--- a/kernel/features/io.c
+++ b/kernel/features/io.c
@@ -182,6 +182,9 @@ void io_unblock(enum io_type io)
 		free(listener);
 		iterator = next;
 	}
+
+	if (proc_idle())
+		proc_yield();
 }
 
 void io_unblock_pid(u32 pid)
@@ -200,6 +203,9 @@ void io_unblock_pid(u32 pid)
 			iterator = next;
 		}
 	}
+
+	if (proc_idle())
+		proc_yield();
 }
 
 CLEAR void io_install(struct boot_info *boot)
diff --git a/kernel/features/proc.c b/kernel/features/proc.c
index b47df0b..70f2efc 100644
--- a/kernel/features/proc.c
+++ b/kernel/features/proc.c
@@ -91,6 +91,15 @@ u8 proc_super(void)
 		return 0; // Should never happen
 }
 
+u8 proc_idle(void)
+{
+	struct proc *proc = proc_current();
+	if (proc)
+		return proc == idle_proc->data;
+	else
+		return 0;
+}
+
 struct proc *proc_from_pid(u32 pid)
 {
 	struct node *iterator = NULL;
@@ -144,7 +153,6 @@ void proc_exit(struct proc *proc, struct regs *r, s32 status)
 	if (!running || !list_remove(proc_list_running, running)) {
 		struct node *blocked = list_first_data(proc_list_blocked, proc);
 		assert(blocked && list_remove(proc_list_blocked, blocked));
-		// Idle procs can't be killed -> assertion failure.
 	}
 
 	if (current->data == proc) {
@@ -182,6 +190,7 @@ void proc_exit(struct proc *proc, struct regs *r, s32 status)
 
 void proc_yield(void)
 {
+	// TODO: Fix yielding without debug mode (File size?! Regs?! IDK?!)
 	proc_reset_quantum(PROC(current));
 	__asm__ volatile("int $127");
 }