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Hub before clay/ze refactor.

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This commit is contained in:
C. Guy Yarvin 2013-10-03 13:38:37 -07:00
parent 3e0fe1bd0e
commit fdf68275ed
2 changed files with 45 additions and 1 deletions
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6
include/v/vere.h
View File

@ -170,6 +170,7 @@
typedef struct _u2_save {
uv_timer_t tim_u; // checkpoint timer
c3_w ent_w; // event number, XX 64
c3_w pid_w; // pid of checkpoint process
} u2_save;
/* u2_ubuf: unix tty i/o buffer.
@ -821,6 +822,11 @@
/** Autosave.
**/
/* u2_save_ef_chld(): report SIGCHLD.
*/
void
u2_save_ef_chld(void);
/* u2_save_io_init(): initialize autosave.
*/
void

40
v/save.c
View File

@ -24,15 +24,51 @@ _save_time_cb(uv_timer_t* tim_u, c3_i sas_i)
{
u2_save* sav_u = &u2_Host.sav_u;
if ( sav_u->pid_w ) {
return;
}
if ( u2A->ent_w > sav_u->ent_w ) {
c3_w pid_w;
// uL(fprintf(uH, "autosaving... ent_w %d\n", u2A->ent_w));
u2_cm_purge();
// u2_ve_grab(0);
#ifdef FORKPT
if ( 0 == (pid_w = fork()) ) {
u2_loom_save(u2A->ent_w);
exit(0);
}
else {
uL(fprintf(uH, "checkpoint: process %d\n", pid_w));
sav_u->ent_w = u2A->ent_w;
sav_u->pid_w = pid_w;
}
#else
u2_loom_save(u2A->ent_w);
sav_u->ent_w = u2A->ent_w;
}
#endif
}
}
/* u2_save_ef_chld(): report save termination.
*/
void
u2_save_ef_chld(void)
{
u2_save* sav_u = &u2_Host.sav_u;
c3_i loc_i;
c3_w pid_w;
c3_assert(0 != sav_u->pid_w);
uL(fprintf(uH, "checkpoint: complete %d\n", sav_u->pid_w));
pid_w = wait(&loc_i);
c3_assert(pid_w == sav_u->pid_w);
sav_u->pid_w = 0;
}
/* u2_save_io_init(): initialize autosave.
@ -43,6 +79,8 @@ u2_save_io_init(void)
u2_save* sav_u = &u2_Host.sav_u;
sav_u->ent_w = 0;
sav_u->pid_w = 0;
uv_timer_init(u2L, &sav_u->tim_u);
uv_timer_start(&sav_u->tim_u, _save_time_cb, 5000, 5000);
}