Espresso 0.0.2c

files/scheduler.h

@@ -0,0 +1,32 @@
+#ifndef _SCHEDULER_H
+#define _SCHEDULER_H
+
+#include <drivers/irq.h>
+
+#include <types.h>
+
+typedef enum {
+  TASK_READY,
+  TASK_RUNNING,
+  TASK_SLEEPING,
+  TASK_BLOCKED,
+  TASK_TERMINATED,
+} task_state_t;
+
+typedef struct task {
+  uint32_t id;
+
+  registers_t* regs;    /* pointer to saved register frame */
+  uint32_t* stack_base; /* original malloc() pointer */
+
+  task_state_t state;
+  struct task* next;
+
+  uint64_t wakeup_tick;
+} task_t;
+
+void scheduler_init(void);
+task_t* create_task(void (*entry)());
+void scheduler_tick(registers_t* regs);
+
+#endif