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/* API for checkpointing */
#ifndef _CHECKPOINT_H_
#define _CHECKPOINT_H_ 1
#include <pthread.h>
#include <semaphore.h>
#include <time.h>
#include <xenguest.h>
#include <xenstore.h>
typedef enum {
dt_unknown,
dt_pv,
dt_hvm,
dt_pvhvm /* HVM with PV drivers */
} checkpoint_domtype;
typedef struct {
xc_interface *xch;
xc_evtchn *xce; /* event channel handle */
struct xs_handle* xsh; /* xenstore handle */
int watching_shutdown; /* state of watch on @releaseDomain */
unsigned int domid;
checkpoint_domtype domtype;
int fd;
int suspend_evtchn;
char* errstr;
/* suspend deadline thread support */
volatile int suspended;
volatile int done;
pthread_t suspend_thr;
sem_t suspended_sem;
sem_t resumed_sem;
timer_t timer;
} checkpoint_state;
#define CHECKPOINT_FLAGS_COMPRESSION 1
char* checkpoint_error(checkpoint_state* s);
void checkpoint_init(checkpoint_state* s);
int checkpoint_open(checkpoint_state* s, unsigned int domid);
void checkpoint_close(checkpoint_state* s);
int checkpoint_start(checkpoint_state* s, int fd,
struct save_callbacks* callbacks,
unsigned int remus_flags);
int checkpoint_suspend(checkpoint_state* s);
int checkpoint_resume(checkpoint_state* s);
int checkpoint_postflush(checkpoint_state* s);
int checkpoint_settimer(checkpoint_state* s, int millis);
int checkpoint_wait(checkpoint_state* s);
void block_timer(void);
void unblock_timer(void);
#endif
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