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vere: refactors king/pier/lord shutdown

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This commit is contained in:
Joe Bryan 2020-06-19 14:32:07 -07:00
parent 98040ffa2d
commit 4a48e16f41
7 changed files with 495 additions and 234 deletions
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4
pkg/urbit/daemon/main.c
View File

@ -483,7 +483,7 @@ _stop_signal(c3_i int_i)
{
// if we have a pier, unmap the event log before dumping core
//
u3_pier_halt();
u3_king_halt();
}
/*
@ -581,7 +581,7 @@ _fork_into_background_process()
static void
_stop_on_boot_completed_cb()
{
u3_pier_exit(u3_pier_stub());
u3_king_exit();
}
c3_i

56
pkg/urbit/include/vere/vere.h
View File

@ -413,7 +413,6 @@
u3_peek* pek_u; // peek
u3_info fon_u; // recompute
c3_d eve_d; // save/pack at
c3_w xit_w; // exit code
};
} u3_writ;
@ -431,7 +430,8 @@
void (*work_bail_f)(void*, u3_ovum*, u3_noun lud);
void (*save_f)(void*);
void (*pack_f)(void*);
void (*exit_f)(void*, c3_o);
void (*bail_f)(void*);
void (*exit_f)(void*);
} u3_lord_cb;
/* u3_lord: serf controller.
@ -600,15 +600,14 @@
// XX remove
c3_s por_s; // UDP port
u3_save* sav_u; // autosave
struct _u3_pier* nex_u; // next in list
} u3_pier;
/* u3_king: all executing piers.
*/
typedef struct _u3_king {
c3_c* certs_c; // ssl certificate dump
c3_w len_w; // number used
c3_w all_w; // number allocated
u3_pier** tab_u; // pier table
u3_pier* pir_u; // pier list
uv_timer_t tim_u; // gc timer
} u3_king;
@ -885,7 +884,17 @@
/* u3_lord_exit(): shutdown gracefully.
*/
void
u3_lord_exit(u3_lord* god_u, c3_w cod_w);
u3_lord_exit(u3_lord* god_u);
/* u3_lord_stall(): send SIGINT
*/
void
u3_lord_stall(u3_lord* god_u);
/* u3_lord_halt(): shutdown immediately
*/
void
u3_lord_halt(u3_lord* god_u);
/* u3_lord_save(): save a snapshot.
*/
@ -1204,12 +1213,12 @@
/* u3_pier_bail(): immediately shutdown..
*/
void
u3_pier_bail(void);
u3_pier_bail(u3_pier* pir_u);
/* u3_pier_halt(): emergency release.
/* u3_pier_halt(): emergency resource release (ie, on SIGABRT).
*/
void
u3_pier_halt(void);
u3_pier_halt(u3_pier* pir_u);
/* u3_pier_save(): request checkpoint.
*/
@ -1221,14 +1230,9 @@
c3_o
u3_pier_pack(u3_pier* pir_u);
/* u3_pier_stub(): get the One Pier for unreconstructed code.
*/
u3_pier*
u3_pier_stub(void);
/* u3_pier_boot(): start the new pier system.
*/
void
u3_pier*
u3_pier_boot(c3_w wag_w, // config flags
u3_noun who, // identity
u3_noun ven, // boot event
@ -1237,7 +1241,7 @@
/* u3_pier_stay(): restart the new pier system.
*/
void
u3_pier*
u3_pier_stay(c3_w wag_w, u3_noun pax);
/* u3_pier_tank(): dump single tank.
@ -1285,6 +1289,26 @@
void
u3_king_commence();
/* u3_king_stub(): get the One Pier for unreconstructed code.
*/
u3_pier*
u3_king_stub(void);
/* u3_king_done(): all piers closed
*/
void
u3_king_done(void);
/* u3_king_exit(): shutdown gracefully
*/
void
u3_king_exit(void);
/* u3_king_halt(): emergency release.
*/
void
u3_king_halt(void);
/* u3_king_bail(): immediately shutdown.
*/
void

2
pkg/urbit/vere/io/ames.c
View File

@ -463,7 +463,7 @@ _ames_io_start(u3_ames* sam_u)
// XX revise
//
u3_pier_exit(u3_pier_stub());
u3_pier_bail(u3_king_stub());
}
uv_udp_getsockname(&sam_u->wax_u, (struct sockaddr *)&add_u, &add_i);

5
pkg/urbit/vere/io/term.c
View File

@ -737,7 +737,10 @@ _term_suck(u3_utty* uty_u, const c3_y* buf, ssize_t siz_i)
// then corrupts the event log), so we force shutdown.
//
u3l_log("term: hangup (EOF)\r\n");
u3_pier_exit(u3_pier_stub());
// XX revise
//
u3_pier_bail(u3_king_stub());
}
else if ( siz_i < 0 ) {
u3l_log("term %d: read: %s\n", uty_u->tid_l, uv_strerror(siz_i));

109
pkg/urbit/vere/king.c
View File

@ -168,7 +168,10 @@ _daemon_boot(u3_noun bul)
void
_daemon_fake(u3_noun ship, u3_noun pill, u3_noun path)
{
u3_pier_boot(sag_w, ship, u3nc(c3__fake, u3k(ship)), pill, path);
// XX link properly
//
u3_noun vent = u3nc(c3__fake, u3k(ship));
u3K.pir_u = u3_pier_boot(sag_w, ship, vent, pill, path);
}
/* _daemon_come(): mine a comet under star (unit)
@ -197,7 +200,10 @@ _daemon_dawn(u3_noun seed, u3_noun pill, u3_noun path)
//
u3C.slog_f = _daemon_slog;
u3_pier_boot(sag_w, u3k(u3h(seed)), u3_dawn_vent(seed), pill, path);
// XX link properly
//
u3_noun vent = u3_dawn_vent(seed);
u3K.pir_u = u3_pier_boot(sag_w, u3k(u3h(seed)), vent, pill, path);
// disable ivory slog printfs
//
@ -215,7 +221,7 @@ _daemon_pier(u3_noun pier)
exit(1);
}
u3_pier_stay(sag_w, u3k(u3t(pier)));
u3K.pir_u = u3_pier_stay(sag_w, u3k(u3t(pier)));
u3z(pier);
}
@ -574,7 +580,7 @@ _daemon_sign_cb(uv_signal_t* sil_u, c3_i num_i)
}
case SIGTERM: {
u3_pier_exit(u3_pier_stub());
u3_king_exit();
break;
}
@ -722,13 +728,104 @@ u3_king_commence()
_daemon_loop_exit();
}
/* u3_king_stub(): get the One Pier for unreconstructed code.
*/
u3_pier*
u3_king_stub(void)
{
if ( !u3K.pir_u ) {
c3_assert(!"king: no pier");
}
else {
return u3K.pir_u;
}
}
/* _king_forall(): run on all piers
*/
static void
_king_forall(void (*pir_f)(u3_pier*))
{
u3_pier* pir_u = u3K.pir_u;
while ( pir_u ) {
pir_f(pir_u);
pir_u = pir_u->nex_u;
}
}
/* _king_forall_unlink(): run on all piers, unlinking from king.
*/
static void
_king_forall_unlink(void (*pir_f)(u3_pier*))
{
u3_pier* pir_u = u3K.pir_u;
while ( u3K.pir_u ) {
u3_pier* pir_u = u3K.pir_u;
u3K.pir_u = pir_u->nex_u;
pir_f(pir_u);
}
}
/* _king_done_cb():
*/
static void
_king_done_cb(uv_handle_t* han_u)
{
if( UV_EBUSY == uv_loop_close(u3L) ) {
// XX uncomment to debug
//
// fprintf(stderr, "\r\nking: open libuv handles\r\n");
// uv_print_all_handles(u3L, stderr);
// fprintf(stderr, "\r\nking: force shutdown\r\n");
uv_stop(u3L);
}
}
/* u3_king_done(): all piers closed. s/b callback
*/
void
u3_king_done(void)
{
uv_handle_t* han_u = (uv_handle_t*)&u3K.tim_u;
// XX hack, if pier's are still linked, we're not actually done
//
if ( !u3K.pir_u && !uv_is_closing(han_u) ) {
uv_close((uv_handle_t*)&u3K.tim_u, _king_done_cb);
_daemon_sign_close();
u3_term_log_exit();
fflush(stdout);
}
}
/* u3_king_exit(): shutdown gracefully
*/
void
u3_king_exit(void)
{
_king_forall(u3_pier_exit);
}
/* u3_king_halt(): emergency release
*/
void
u3_king_halt(void)
{
_king_forall_unlink(u3_pier_halt);
}
/* u3_king_bail(): immediately shutdown.
*/
void
u3_king_bail(void)
{
_king_forall_unlink(u3_pier_bail);
_daemon_loop_exit();
u3_pier_bail();
u3_king_done();
exit(1);
}
@ -750,7 +847,7 @@ u3_king_grab(void* vod_p)
c3_c* wen_c = u3r_string(wen);
c3_c nam_c[2048];
snprintf(nam_c, 2048, "%s/.urb/put/mass", u3_pier_stub()->pax_c);
snprintf(nam_c, 2048, "%s/.urb/put/mass", u3_king_stub()->pax_c);
struct stat st;
if ( -1 == stat(nam_c, &st) ) {

259
pkg/urbit/vere/lord.c
View File

@ -53,6 +53,112 @@
--
*/
/* _lord_stop_cb(): finally all done.
*/
static void
_lord_stop_cb(void* ptr_v,
const c3_c* err_c)
{
u3_lord* god_u = ptr_v;
void (*exit_f)(void*) = god_u->cb_u.exit_f;
void* exit_v = god_u->cb_u.vod_p;
c3_free(god_u);
if ( exit_f ) {
exit_f(exit_v);
}
}
/* _lord_writ_free(): dispose of pending writ.
*/
static void
_lord_writ_free(u3_writ* wit_u)
{
switch ( wit_u->typ_e ) {
default: c3_assert(0);
case u3_writ_work: {
// XX confirm
//
u3_ovum* egg_u = wit_u->wok_u.egg_u;
u3_auto_drop(egg_u->car_u, egg_u);
u3z(wit_u->wok_u.job);
} break;
case u3_writ_peek: {
u3z(wit_u->pek_u->now);
u3z(wit_u->pek_u->gan);
u3z(wit_u->pek_u->ful);
} break;
case u3_writ_play: {
u3_fact* tac_u = wit_u->fon_u.ext_u;
u3_fact* nex_u;
while ( tac_u ) {
nex_u = tac_u->nex_u;
u3_fact_free(tac_u);
tac_u = nex_u;
}
} break;
case u3_writ_save:
case u3_writ_pack:
case u3_writ_exit: {
} break;
}
c3_free(wit_u);
}
/* _lord_bail_noop(): ignore subprocess error on shutdown
*/
static void
_lord_bail_noop(void* ptr_v,
const c3_c* err_c)
{
}
/* _lord_stop(): close and dispose all resources.
*/
static void
_lord_stop(u3_lord* god_u)
{
// dispose outstanding writs
//
{
u3_writ* wit_u = god_u->ext_u;
u3_writ* nex_u;
while ( wit_u ) {
nex_u = wit_u->nex_u;
_lord_writ_free(wit_u);
wit_u = nex_u;
}
god_u->ent_u = god_u->ext_u = 0;
}
u3_newt_moat_stop(&god_u->out_u, _lord_stop_cb);
u3_newt_mojo_stop(&god_u->inn_u, _lord_bail_noop);
uv_close((uv_handle_t*)&god_u->cub_u, 0);
}
/* _lord_bail(): serf/lord error.
*/
static void
_lord_bail(u3_lord* god_u)
{
void (*bail_f)(void*) = god_u->cb_u.bail_f;
void* bail_v = god_u->cb_u.vod_p;
u3_lord_halt(god_u);
bail_f(bail_v);
}
/* _lord_writ_pop(): pop the writ stack.
*/
static u3_writ*
@ -103,58 +209,13 @@ _lord_writ_need(u3_lord* god_u, u3_writ_type typ_e)
fprintf(stderr, "lord: unexpected %%%s, expected %%%s\r\n",
_lord_writ_str(typ_e),
_lord_writ_str(wit_u->typ_e));
u3_pier_bail();
exit(1);
_lord_bail(god_u);
return 0;
}
return wit_u;
}
/* _lord_on_k(): handle subprocess exit.
*/
static void
_lord_on_exit(uv_process_t* req_u,
c3_ds sas_i,
c3_i sig_i)
{
u3_lord* god_u = (void*)req_u;
{
void (*exit_f)(void*, c3_o) = god_u->cb_u.exit_f;
void* vod_p = god_u->cb_u.vod_p;
// XX correct comparison?
//
c3_o ret_o = ( u3_writ_exit != god_u->ext_u->typ_e )
? c3n
: ( god_u->ext_u->xit_w == sas_i )
? c3y : c3n;
// XX dispose god_u
//
exit_f(vod_p, c3y);
}
}
/* _lord_bail_noop(): ignore subprocess error on shutdown
*/
static void
_lord_bail_noop(void* vod_p,
const c3_c* err_c)
{
}
/* _lord_bail(): handle subprocess error.
*/
static void
_lord_bail(void* vod_p,
const c3_c* err_c)
{
// XX exit?
//
fprintf(stderr, "\rpier: work error: %s\r\n", err_c);
}
/* _lord_plea_foul():
*/
static void
@ -167,9 +228,11 @@ _lord_plea_foul(u3_lord* god_u, c3_m mot_m, u3_noun dat)
fprintf(stderr, "lord: received invalid %%%.4s $plea\r\n", (c3_c*)&mot_m);
}
u3m_p("plea", dat);
u3_pier_bail();
exit(1);
// XX can't unconditionally print
//
// u3m_p("plea", dat);
_lord_bail(god_u);
}
/* _lord_plea_live(): hear serf %live ack
@ -207,8 +270,8 @@ _lord_plea_ripe(u3_lord* god_u, u3_noun dat)
{
if ( c3y == god_u->liv_o ) {
fprintf(stderr, "lord: received unexpected %%ripe\n");
u3_pier_bail();
exit(1);
_lord_bail(god_u);
return;
}
{
@ -230,8 +293,8 @@ _lord_plea_ripe(u3_lord* god_u, u3_noun dat)
if ( 1 != pro_y ) {
fprintf(stderr, "pier: unsupported ipc protocol version %u\r\n", pro_y);
u3_pier_bail();
exit(1);
_lord_bail(god_u);
return;
}
god_u->eve_d = eve_d;
@ -276,6 +339,7 @@ _lord_plea_peek(u3_lord* god_u, u3_noun dat)
{
u3_writ* wit_u = _lord_writ_need(god_u, u3_writ_peek);
pek_u = wit_u->pek_u;
c3_free(wit_u);
}
// XX cache [dat] (unless last)
@ -533,12 +597,12 @@ _lord_plea_work(u3_lord* god_u, u3_noun dat)
u3z(dat);
}
/* _lord_plea(): handle plea from serf.
/* _lord_on_plea(): handle plea from serf.
*/
static void
_lord_plea(void* vod_p, u3_noun mat)
_lord_on_plea(void* ptr_v, u3_noun mat)
{
u3_lord* god_u = vod_p;
u3_lord* god_u = ptr_v;
u3_noun jar = u3ke_cue(mat);
u3_noun tag, dat;
@ -634,9 +698,9 @@ _lord_writ_jam(u3_lord* god_u, u3_writ* wit_u)
} break;
case u3_writ_exit: {
// XX u3_newt_close on send
// requested exit code is always 0
//
msg = u3nt(c3__live, c3__exit, u3i_words(1, &wit_u->xit_w));
msg = u3nt(c3__live, c3__exit, 0);
} break;
}
@ -649,16 +713,16 @@ _lord_writ_jam(u3_lord* god_u, u3_writ* wit_u)
static void
_lord_writ_send(u3_lord* god_u, u3_writ* wit_u)
{
_lord_writ_jam(god_u, wit_u);
u3_newt_write(&god_u->inn_u, wit_u->mat);
wit_u->mat = 0;
// ignore subprocess error on shutdown
// exit expected
//
if ( u3_writ_exit == wit_u->typ_e ) {
god_u->out_u.bal_f = _lord_bail_noop;
god_u->inn_u.bal_f = _lord_bail_noop;
}
_lord_writ_jam(god_u, wit_u);
u3_newt_write(&god_u->inn_u, wit_u->mat);
wit_u->mat = 0;
}
/* _lord_writ_plan(): enqueue a writ and send.
@ -848,12 +912,67 @@ u3_lord_pack(u3_lord* god_u)
/* u3_lord_exit(): shutdown gracefully.
*/
void
u3_lord_exit(u3_lord* god_u, c3_w cod_w)
u3_lord_exit(u3_lord* god_u)
{
u3_writ* wit_u = _lord_writ_new(god_u);
wit_u->typ_e = u3_writ_exit;
wit_u->xit_w = cod_w;
_lord_writ_plan(god_u, wit_u);
// XX set timer, then halt
}
/* u3_lord_stall(): send SIGINT
*/
void
u3_lord_stall(u3_lord* god_u)
{
uv_process_kill(&god_u->cub_u, SIGINT);
}
/* u3_lord_halt(): shutdown immediately
*/
void
u3_lord_halt(u3_lord* god_u)
{
// no exit callback on halt
//
god_u->cb_u.exit_f = 0;
uv_process_kill(&god_u->cub_u, SIGKILL);
_lord_stop(god_u);
}
/* _lord_on_serf_exit(): handle subprocess exit.
*/
static void
_lord_on_serf_exit(uv_process_t* req_u,
c3_ds sas_i,
c3_i sig_i)
{
u3_lord* god_u = (void*)req_u;
if ( !god_u->ext_u
|| !(u3_writ_exit == god_u->ext_u->typ_e) )
{
fprintf(stderr, "pier: work exit: status %" PRId64 ", signal %d\r\n",
sas_i, sig_i);
_lord_bail(god_u);
}
else {
_lord_stop(god_u);
}
}
/* _lord_on_serf_bail(): handle subprocess error.
*/
static void
_lord_on_serf_bail(void* ptr_v,
const c3_c* err_c)
{
u3_lord* god_u = ptr_v;
u3l_log("pier: serf error: %s\r\n", err_c);
_lord_bail(god_u);
}
/* u3_lord_init(): instantiate child process.
@ -921,7 +1040,7 @@ u3_lord_init(c3_c* pax_c, c3_w wag_w, c3_d key_d[4], u3_lord_cb cb_u)
god_u->ops_u.stdio = god_u->cod_u;
god_u->ops_u.stdio_count = 3;
god_u->ops_u.exit_cb = _lord_on_exit;
god_u->ops_u.exit_cb = _lord_on_serf_exit;
god_u->ops_u.file = arg_c[0];
god_u->ops_u.args = arg_c;
@ -936,13 +1055,13 @@ u3_lord_init(c3_c* pax_c, c3_w wag_w, c3_d key_d[4], u3_lord_cb cb_u)
//
{
god_u->out_u.ptr_v = god_u;
god_u->out_u.pok_f = _lord_plea;
god_u->out_u.bal_f = _lord_bail;
god_u->out_u.pok_f = _lord_on_plea;
god_u->out_u.bal_f = _lord_on_serf_bail;
// XX distinguish from out_u.bal_f ?
//
god_u->inn_u.ptr_v = god_u;
god_u->inn_u.bal_f = _lord_bail;
god_u->inn_u.bal_f = _lord_on_serf_bail;
u3_newt_read(&god_u->out_u);
}

294
pkg/urbit/vere/pier.c
View File

@ -592,7 +592,7 @@ _pier_play(u3_play* pay_u)
// // XX graceful shutdown
// //
// u3_lord_save(pir_u->god_u);
// u3_pier_bail();
// u3_pier_bail(pir_u);
// exit(0);
// XX temporary hack
@ -631,7 +631,7 @@ _pier_on_lord_play_done(void* vod_p, u3_info fon_u, c3_l mug_l)
tac_u->eve_d,
tac_u->mug_l,
mug_l);
// u3_pier_bail();
// u3_pier_bail(pir_u);
}
// dispose successful
@ -680,7 +680,7 @@ _pier_on_lord_play_bail(void* vod_p, u3_info fon_u,
(c3_d)(eve_d - 1ULL),
las_l,
mug_l);
// u3_pier_bail();
// u3_pier_bail(pir_u);
}
// XX enable to retry
@ -716,7 +716,7 @@ _pier_on_lord_play_bail(void* vod_p, u3_info fon_u,
u3_pier_punt_ovum("play", u3k(wir), u3k(tag));
}
u3_pier_bail();
u3_pier_bail(pir_u);
exit(1);
}
#endif
@ -785,7 +785,7 @@ _pier_on_disk_read_bail(void* vod_p, c3_d eve_d)
//
fprintf(stderr, "pier: disk read bail\r\n");
u3_term_stop_spinner();
u3_pier_bail();
u3_pier_bail(pir_u);
}
/* _pier_on_disk_write_done(): event log write success.
@ -833,7 +833,7 @@ _pier_on_disk_write_bail(void* vod_p, c3_d eve_d)
// XX
//
fprintf(stderr, "pier: disk write bail\r\n");
u3_pier_bail();
u3_pier_bail(pir_u);
}
/* _pier_on_lord_slog(): debug printf from worker.
@ -883,35 +883,56 @@ _pier_on_lord_pack(void* vod_p)
//
if ( u3_psat_play == pir_u->sat_e ) {
u3l_log("pier: pack complete, shutting down\r\n");
u3_pier_bail();
u3_pier_bail(pir_u);
exit(0);
}
// if ( u3_psat_done == pir_u->sat_e ) {
// fprintf(stderr, "snap cb exit\r\n");
// u3_lord_exit(pir_u->god_u, 0);
// u3_lord_exit(pir_u->god_u);
// }
// else {
// _pier_next(pir_u);
// }
}
static void
_pier_done(u3_pier* pir_u);
/* _pier_on_lord_exit(): worker shutdown.
*/
static void
_pier_on_lord_exit(void* vod_p, c3_o ret_o)
_pier_on_lord_exit(void* vod_p)
{
u3_pier* pir_u = vod_p;
if ( u3_psat_done == pir_u->sat_e ) {
if ( c3n == ret_o ) {
u3l_log("pier: serf shutdown dirty\r\n");
}
}
else {
// the lord has already gone
//
pir_u->god_u = 0;
if ( u3_psat_done != pir_u->sat_e ) {
u3l_log("pier: serf shutdown unexpected\r\n");
u3_pier_bail();
u3_pier_bail(pir_u);
}
// if we made it all the way here, it's our jab to wrap up
//
else {
_pier_done(pir_u);
}
}
/* _pier_on_lord_bail(): worker error.
*/
static void
_pier_on_lord_bail(void* vod_p)
{
u3_pier* pir_u = vod_p;
// the lord has already gone
//
pir_u->god_u = 0;
u3_pier_bail(pir_u);
}
/* _pier_on_lord_live(): worker is ready.
@ -1031,6 +1052,7 @@ _pier_init(c3_w wag_w, c3_c* pax_c)
.work_bail_f = _pier_on_lord_work_bail,
.save_f = _pier_on_lord_save,
.pack_f = _pier_on_lord_pack,
.bail_f = _pier_on_lord_bail,
.exit_f = _pier_on_lord_exit
};
@ -1042,26 +1064,12 @@ _pier_init(c3_w wag_w, c3_c* pax_c)
}
}
// install in the pier table
//
// XX u3_king_plan
//
if ( 0 == u3K.all_w ) {
u3K.all_w = 16;
u3K.tab_u = c3_malloc(16 * sizeof(u3_pier*));
}
if ( u3K.len_w == u3K.all_w ) {
u3K.all_w = 2 * u3K.all_w;
u3K.tab_u = c3_realloc(u3K.tab_u, u3K.all_w * sizeof(u3_pier*));
}
u3K.tab_u[u3K.len_w++] = pir_u;
return pir_u;
}
/* u3_pier_stay(): restart an existing pier.
*/
void
u3_pier*
u3_pier_stay(c3_w wag_w, u3_noun pax)
{
u3_pier* pir_u = _pier_init(wag_w, u3r_string(pax));
@ -1072,11 +1080,13 @@ u3_pier_stay(c3_w wag_w, u3_noun pax)
fprintf(stderr, "pier: disk read meta fail\r\n");
// XX dispose
//
u3_pier_bail();
u3_pier_bail(pir_u);
exit(1);
}
u3z(pax);
return pir_u;
}
/* _pier_pill_parse(): extract boot formulas and module/userspace ova from pill
@ -1265,7 +1275,7 @@ _pier_boot_plan(u3_pier* pir_u, u3_noun who, u3_noun ven, u3_noun pil)
/* u3_pier_boot(): start a new pier.
*/
void
u3_pier*
u3_pier_boot(c3_w wag_w, // config flags
u3_noun who, // identity
u3_noun ven, // boot event
@ -1278,11 +1288,13 @@ u3_pier_boot(c3_w wag_w, // config flags
fprintf(stderr, "pier: boot plan fail\r\n");
// XX dispose
//
u3_pier_bail();
u3_pier_bail(pir_u);
exit(1);
}
u3z(pax);
return pir_u;
}
static void
@ -1353,29 +1365,51 @@ u3_pier_pack(u3_pier* pir_u)
}
static void
_pier_exit_work_cb(uv_handle_t* idl_u)
_pier_work_close_cb(uv_handle_t* idl_u)
{
u3_work* wok_u = idl_u->data;
c3_free(wok_u);
}
/* _pier_exit_cb(): synchronous shutdown.
static void
_pier_work_close(u3_work* wok_u)
{
u3_auto_exit(wok_u->car_u);
// free pending effects
//
{
u3_gift* gif_u = wok_u->fec_u.ext_u;
u3_gift* nex_u;
while ( gif_u ) {
nex_u = gif_u->nex_u;
u3_gift_free(gif_u);
gif_u = nex_u;
}
}
uv_close((uv_handle_t*)&wok_u->pep_u, _pier_work_close_cb);
uv_close((uv_handle_t*)&wok_u->cek_u, 0);
uv_close((uv_handle_t*)&wok_u->idl_u, 0);
wok_u->pep_u.data = wok_u;
}
static void
_pier_done(u3_pier* pir_u)
{
// XX unlink properly
//
u3K.pir_u = 0;
u3_king_done();
}
/* _pier_exit(): synchronous shutdown.
*/
static void
_pier_exit_cb(void* vod_p, c3_d eve_d)
_pier_exit(u3_pier* pir_u)
{
u3_pier* pir_u = vod_p;
if ( pir_u->wok_u ) {
u3_work* wok_u = pir_u->wok_u;
u3_auto_exit(wok_u->car_u);
// XX confirm, libuv close callback are fired with a stack discipline
//
uv_close((uv_handle_t*)&wok_u->pep_u, _pier_exit_work_cb);
uv_close((uv_handle_t*)&wok_u->cek_u, 0);
uv_close((uv_handle_t*)&wok_u->idl_u, 0);
pir_u->wok_u = 0;
}
c3_assert( u3_psat_done == pir_u->sat_e );
if ( pir_u->log_u ) {
u3_disk_exit(pir_u->log_u);
@ -1383,17 +1417,46 @@ _pier_exit_cb(void* vod_p, c3_d eve_d)
}
if ( pir_u->god_u ) {
u3_lord_exit(pir_u->god_u, 0);
u3_lord_exit(pir_u->god_u);
pir_u->god_u = 0;
}
else {
// otherwise called in _pier_on_lord_exit()
//
_pier_done(pir_u);
}
}
u3_term_log_exit();
/* _pier_work_exit(): commence graceful shutdown.
*/
static void
_pier_work_exit_cb(void* vod_p, c3_d eve_d)
{
u3_pier* pir_u = vod_p;
// XX uninstall pier from u3K.tab_u, dispose
_pier_work_close(pir_u->wok_u);
pir_u->wok_u = 0;
// XX no can do
_pier_exit(pir_u);
}
/* _pier_work_exit(): setup graceful shutdown callbacks.
*/
static void
_pier_work_exit(u3_pier* pir_u)
{
_pier_wall_plan(pir_u, 0, pir_u, _pier_save_cb);
_pier_wall_plan(pir_u, 0, pir_u, _pier_work_exit_cb);
// XX moveme, XX bails if not started
//
uv_stop(u3L);
{
c3_l cod_l = u3a_lush(c3__save);
u3_save_io_exit(pir_u);
u3a_lop(cod_l);
}
pir_u->sat_e = u3_psat_done;
}
/* u3_pier_exit(): graceful shutdown.
@ -1401,60 +1464,21 @@ _pier_exit_cb(void* vod_p, c3_d eve_d)
void
u3_pier_exit(u3_pier* pir_u)
{
// fprintf(stderr, "pier: exit\r\n");
switch ( pir_u->sat_e ) {
// XX specifically handle init/done?
//
default: {
fprintf(stderr, "pier: unexpected exit: %u\r\n", pir_u->sat_e);
fprintf(stderr, "pier: unknown exit: %u\r\n", pir_u->sat_e);
c3_assert(0);
}
case u3_psat_boot: {
// XX properly dispose boot
//
c3_free(pir_u->bot_u);
pir_u->bot_u = 0;
_pier_exit_cb(pir_u, 0);
} break;
case u3_psat_done: return;
case u3_psat_play: {
// XX dispose play q
//
c3_free(pir_u->pay_u);
pir_u->pay_u = 0;
_pier_exit_cb(pir_u, 0);
} break;
case u3_psat_work: return _pier_work_exit(pir_u);
case u3_psat_work: {
_pier_wall_plan(pir_u, 0, pir_u, _pier_save_cb);
_pier_wall_plan(pir_u, 0, pir_u, _pier_exit_cb);
// XX moveme
//
{
c3_l cod_l = u3a_lush(c3__save);
u3_save_io_exit(pir_u);
u3a_lop(cod_l);
}
} break;
}
u3K.len_w = 0;
pir_u->sat_e = u3_psat_done;
}
/* _pier_exit_done(): force synchronous shut down.
*/
static void
_pier_exit_done(u3_pier* pir_u)
{
switch ( pir_u->sat_e ) {
default: break;
case u3_psat_init: break;
case u3_psat_boot: {
// XX properly dispose boot
// XX also on actual boot
//
c3_free(pir_u->bot_u);
pir_u->bot_u = 0;
@ -1466,47 +1490,54 @@ _pier_exit_done(u3_pier* pir_u)
c3_free(pir_u->pay_u);
pir_u->pay_u = 0;
} break;
case u3_psat_work: {
// XX moveme
//
{
c3_l cod_l = u3a_lush(c3__save);
u3_save_io_exit(pir_u);
u3a_lop(cod_l);
}
} break;
}
u3K.len_w = 0;
pir_u->sat_e = u3_psat_done;
_pier_exit_cb(pir_u, 0);
_pier_exit(pir_u);
}
/* u3_pier_bail(): immediately shutdown.
/* u3_pier_bail(): immediately shutdown due to error.
*/
void
u3_pier_bail(void)
u3_pier_bail(u3_pier* pir_u)
{
if ( 0 != u3K.len_w ) {
_pier_exit_done(u3_pier_stub());
pir_u->sat_e = u3_psat_done;
//
if ( pir_u->god_u ) {
u3_lord_halt(pir_u->god_u);
pir_u->god_u = 0;
}
fflush(stdout);
exit(1);
// exig i/o drivers
//
if ( pir_u->wok_u ) {
_pier_work_close(pir_u->wok_u);
pir_u->wok_u = 0;
}
// close db
//
if ( pir_u->log_u ) {
u3_disk_exit(pir_u->log_u);
pir_u->log_u = 0;
}
_pier_done(pir_u);
}
/* u3_pier_halt(): emergency release.
/* u3_pier_halt(): emergency resource release (ie, on SIGABRT).
*/
void
u3_pier_halt(void)
u3_pier_halt(u3_pier* pir_u)
{
if ( 0 != u3K.len_w ) {
u3_disk_exit(u3_pier_stub()->log_u);
// we should only ever try this trick once
//
u3K.len_w = 0;
// unmap disk if present
//
// XX maybe skip close/cancel/free. and just unmap
//
if ( pir_u->log_u ) {
u3_disk_exit(pir_u->log_u);
pir_u->log_u = 0;
}
}
@ -1519,7 +1550,7 @@ c3_rand(c3_w* rad_w)
fprintf(stderr, "c3_rand getentropy: %s\n", strerror(errno));
// XX review
//
u3_pier_bail();
u3_king_bail();
}
}
@ -1691,19 +1722,6 @@ u3_pier_sway(c3_l tab_l, u3_noun tax)
u3z(mok);
}
/* u3_pier_stub(): get the One Pier for unreconstructed code.
*/
u3_pier*
u3_pier_stub(void)
{
if ( 0 == u3K.len_w ) {
c3_assert(!"plan: no pier");
}
else {
return u3K.tab_u[0];
}
}
/* u3_pier_mark(): mark all Loom allocations in all u3_pier structs.
*/
c3_w