1 files changed, 42 insertions, 0 deletions
diff --git a/kernel/include/task.h b/kernel/include/task.h
new file mode 100644
index 0000000..8ba50b0
--- /dev/null
+++ b/kernel/include/task.h
@@ -0,0 +1,42 @@
+#pragma once
+
+#include <sys.h>
+#include <region.h>
+
+#define T_STATE_RUNNING		1
+#define T_STATE_FINISHED	2
+#define T_STATE_WAITING		3
+
+#define KPROC_STACK_SIZE 0x8000	// 8Kb
+
+typedef struct saved_context {
+	uint32_t *esp;
+	void (*eip)();
+} saved_context_t;
+
+typedef struct task {
+	saved_context_t ctx;
+
+	uint32_t state;
+	void* result;
+	bool has_result;
+
+	region_info_t *stack_region;
+
+	void* more_data;
+
+	struct task *next_in_queue;
+} task_t;
+
+typedef void (*entry_t)(void*);
+
+void tasking_setup(entry_t cont, void* data);		// never returns
+task_t *new_task(entry_t entry);	// task is PAUSED, and must be resume_with_result'ed
+extern task_t *current_task;
+
+
+void yield();
+void* wait_for_result();
+void resume_with_result(task_t *task, void* data, bool run_at_once);
+
+/* vim: set ts=4 sw=4 tw=0 noet :*/