very buggy fork, execve and exit

1 files changed, 22 insertions, 1 deletions

diff --git a/kernel/task.c b/kernel/task.c
index 1780b77..6ea9b79 100644
--- a/kernel/task.c
+++ b/kernel/task.c
@@ -76,10 +76,31 @@ uint32_t task_switch_next(uint32_t oldesp)
 
 }
 
+//TODO: free vmem too!
+uint32_t task_exit(uint32_t oldesp)
+{ 
+    task_list[current_task].active=false;
+
+    for(int i=0;i<MAX_TASKS;i++)
+    {
+	int pid=(current_task+1+i)%MAX_TASKS; // schedule round robin style
+
+	if(task_list[pid].active)
+	{
+	  //  log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"switch from %d to pid: %d (0x%08X) vmem: %d ", current_task,pid,task_list[pid].esp,task_list[pid].vmem);
+	    current_task=pid;
+
+	    vmem_set_dir(task_list[pid].vmem);
+	    return task_list[pid].esp;
+	}
+
+    }
+}
 
 uint32_t task_fork(uint32_t oldesp)
 { 
-    return add_task(oldesp,vmem_new_space_dir());
+   int pid=add_task(oldesp,vmem_new_space_dir(task_list[current_task].vmem));
+   return pid;
 }
 
 // init task (root of all other tasks / processes) //