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#ifndef APOS_TCB_H
#define APOS_TCB_H
/**
* @file tcb.h
* Process/thread handling.
*/
#include <apos/mem_regions.h>
#include <apos/types.h>
#include <arch/tcb.h> /* arch-specific data */
/* process(/main) threads don't have any previous threads */
#define is_proc(t) (t->rid == t->tid)
#define is_rpc(t) (t->rid == t->pid)
#define get_proc(t) (get_tcb(t->eid))
#define get_rproc(t) (get_tcb(t->rid))
/* forward declaration */
struct tcb;
struct tcb_ctx {
struct vmem *vmem;
struct tcb *next;
struct tcb *prev;
};
struct tcb {
struct arch_tcbd tcbd;
/* mapping data */
struct mem_region_root sp_r;
id_t eid;
id_t pid;
id_t rid;
id_t tid;
vm_t callback;
vm_t thread_stack;
vm_t thread_stack_top;
vm_t thread_storage;
struct tcb_ctx proc;
struct tcb_ctx rpc;
};
void init_tcbs();
void destroy_tcbs();
struct tcb *create_thread(struct tcb *p);
struct tcb *create_proc(struct tcb *p);
stat_t destroy_thread(struct tcb *t);
stat_t destroy_proc(struct tcb *p);
stat_t attach_rpc(struct tcb *r, struct tcb *t);
stat_t detach_rpc(struct tcb *r, struct tcb *t);
stat_t attach_proc(struct tcb *r, struct tcb *t);
stat_t detach_proc(struct tcb *r, struct tcb *t);
struct tcb *cur_tcb();
struct tcb *cur_proc();
void use_tcb(struct tcb *);
struct tcb *get_tcb(id_t tid);
stat_t clone_proc_maps(struct tcb *);
stat_t clone_rpc_maps(struct tcb *);
stat_t alloc_stacks(struct tcb *);
#endif /* APOS_TCB_H */
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