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Viewing changes to tools/python/xen/lowlevel/checkpoint/checkpoint.h

  • Committer: Bazaar Package Importer
  • Author(s): Bastian Blank
  • Date: 2010-05-06 15:47:38 UTC
  • mto: (1.3.1) (15.1.1 sid) (4.1.1 experimental)
  • mto: This revision was merged to the branch mainline in revision 3.
  • Revision ID: james.westby@ubuntu.com-20100506154738-agoz0rlafrh1fnq7
Tags: upstream-4.0.0
Import upstream version 4.0.0

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