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Merge commit '94eb0858' into thread-next

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This commit is contained in:
Maria Matejka 2022-07-18 12:33:00 +02:00
commit 08c8484608
38 changed files with 788 additions and 469 deletions
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1
filter/filter_test.c
View File

@ -70,6 +70,7 @@ int
main(int argc, char *argv[])
{
bt_init(argc, argv);
bt_bird_init();
bt_assert_hook = bt_assert_filter;

1
lib/a-set_test.c
View File

@ -221,6 +221,7 @@ t_set_ec_delete(void)
return 1;
}
int
main(int argc, char *argv[])
{

1
lib/birdlib.h
View File

@ -86,6 +86,7 @@ static inline int u64_cmp(u64 i1, u64 i2)
/* Macros for gcc attributes */
#define NORET __attribute__((noreturn))
#define USE_RESULT __atribute__((warn_unused_result))
#define UNUSED __attribute__((unused))
#define PACKED __attribute__((packed))
#define NONNULL(...) __attribute__((nonnull((__VA_ARGS__))))

5
lib/coro.h
View File

@ -2,7 +2,7 @@
* BIRD Coroutines
*
* (c) 2017 Martin Mares <mj@ucw.cz>
* (c) 2020 Maria Matejka <mq@jmq.cz>
* (c) 2020-2021 Maria Matejka <mq@jmq.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
@ -22,5 +22,8 @@ struct coroutine;
*/
struct coroutine *coro_run(pool *, void (*entry)(void *), void *data);
/* Get self. */
extern _Thread_local struct coroutine *this_coro;
#endif

133
lib/event.c
View File

@ -19,8 +19,14 @@
* events in them and explicitly ask to run them.
*/
#undef LOCAL_DEBUG
#include "nest/bird.h"
#include "lib/event.h"
#include "lib/locking.h"
#include "lib/io-loop.h"
extern _Thread_local struct coroutine *this_coro;
event_list global_event_list;
event_list global_work_list;
@ -28,11 +34,16 @@ event_list global_work_list;
inline void
ev_postpone(event *e)
{
event_list *el = e->list;
if (!el)
return;
ASSERT_DIE(birdloop_inside(el->loop));
LOCK_DOMAIN(event, el->lock);
if (ev_active(e))
{
rem_node(&e->n);
e->n.next = NULL;
}
rem_node(&e->n);
UNLOCK_DOMAIN(event, el->lock);
}
static void
@ -95,40 +106,25 @@ ev_run(event *e)
* list @l which can be run by calling ev_run_list().
*/
inline void
ev_enqueue(event_list *l, event *e)
ev_send(event_list *l, event *e)
{
ev_postpone(e);
add_tail(l, &e->n);
}
DBG("ev_send(%p, %p)\n", l, e);
ASSERT_DIE(e->hook);
ASSERT_DIE(!e->list || (e->list == l) || (e->list->loop == l->loop));
/**
* ev_schedule - schedule an event
* @e: an event
*
* This function schedules an event by enqueueing it to a system-wide
* event list which is run by the platform dependent code whenever
* appropriate.
*/
void
ev_schedule(event *e)
{
ev_enqueue(&global_event_list, e);
}
e->list = l;
/**
* ev_schedule_work - schedule a work-event.
* @e: an event
*
* This function schedules an event by enqueueing it to a system-wide work-event
* list which is run by the platform dependent code whenever appropriate. This
* is designated for work-events instead of regular events. They are executed
* less often in order to not clog I/O loop.
*/
void
ev_schedule_work(event *e)
{
if (!ev_active(e))
add_tail(&global_work_list, &e->n);
LOCK_DOMAIN(event, l->lock);
if (enlisted(&e->n))
{
UNLOCK_DOMAIN(event, l->lock);
return;
}
add_tail(&l->events, &e->n);
UNLOCK_DOMAIN(event, l->lock);
birdloop_ping(l->loop);
}
void io_log_event(void *hook, void *data);
@ -142,36 +138,65 @@ void io_log_event(void *hook, void *data);
int
ev_run_list(event_list *l)
{
node *n;
list tmp_list;
const _Bool legacy = LEGACY_EVENT_LIST(l);
if (legacy)
ASSERT_THE_BIRD_LOCKED;
node *n;
list tmp_list;
init_list(&tmp_list);
add_tail_list(&tmp_list, l);
init_list(l);
/* Move the event list contents to a local list to avoid executing repeatedly added events */
LOCK_DOMAIN(event, l->lock);
add_tail_list(&tmp_list, &l->events);
init_list(&l->events);
UNLOCK_DOMAIN(event, l->lock);
WALK_LIST_FIRST(n, tmp_list)
{
event *e = SKIP_BACK(event, n, n);
/* This is ugly hack, we want to log just events executed from the main I/O loop */
if ((l == &global_event_list) || (l == &global_work_list))
if (legacy)
{
/* The legacy way of event execution */
io_log_event(e->hook, e->data);
ev_run(e);
ev_postpone(e);
e->hook(e->data);
}
else
{
// io_log_event(e->hook, e->data); /* TODO: add support for event logging in other io loops */
ASSERT_DIE(e->list == l);
LOCK_DOMAIN(event, l->lock);
rem_node(&e->n);
UNLOCK_DOMAIN(event, l->lock);
e->hook(e->data);
}
tmp_flush();
}
return !EMPTY_LIST(*l);
LOCK_DOMAIN(event, l->lock);
int repeat = ! EMPTY_LIST(l->events);
UNLOCK_DOMAIN(event, l->lock);
return repeat;
}
int
ev_run_list_limited(event_list *l, uint limit)
{
ASSERT_DIE(LEGACY_EVENT_LIST(l));
ASSERT_THE_BIRD_LOCKED;
node *n;
list tmp_list;
LOCK_DOMAIN(event, l->lock);
init_list(&tmp_list);
add_tail_list(&tmp_list, l);
init_list(l);
add_tail_list(&tmp_list, &l->events);
init_list(&l->events);
UNLOCK_DOMAIN(event, l->lock);
WALK_LIST_FIRST(n, tmp_list)
{
@ -180,22 +205,24 @@ ev_run_list_limited(event_list *l, uint limit)
if (!limit)
break;
/* This is ugly hack, we want to log just events executed from the main I/O loop */
if ((l == &global_event_list) || (l == &global_work_list))
io_log_event(e->hook, e->data);
io_log_event(e->hook, e->data);
ev_run(e);
tmp_flush();
limit--;
}
LOCK_DOMAIN(event, l->lock);
if (!EMPTY_LIST(tmp_list))
{
/* Attach new items after the unprocessed old items */
add_tail_list(&tmp_list, l);
init_list(l);
add_tail_list(l, &tmp_list);
add_tail_list(&tmp_list, &l->events);
init_list(&l->events);
add_tail_list(&l->events, &tmp_list);
}
return !EMPTY_LIST(*l);
int repeat = ! EMPTY_LIST(l->events);
UNLOCK_DOMAIN(event, l->lock);
return repeat;
}

41
lib/event.h
View File

@ -10,33 +10,62 @@
#define _BIRD_EVENT_H_
#include "lib/resource.h"
#include "lib/locking.h"
#include <stdatomic.h>
DEFINE_DOMAIN(event);
typedef struct event {
resource r;
void (*hook)(void *);
void *data;
node n; /* Internal link */
struct event_list *list; /* List where this event is put in */
} event;
typedef list event_list;
typedef struct event_list {
list events;
pool *pool;
struct birdloop *loop;
DOMAIN(event) lock;
} event_list;
extern event_list global_event_list;
extern event_list global_work_list;
event *ev_new(pool *);
void ev_run(event *);
#define ev_init_list(el) init_list(el)
void ev_enqueue(event_list *, event *);
void ev_schedule(event *);
void ev_schedule_work(event *);
static inline void ev_init_list(event_list *el, struct birdloop *loop, const char *name)
{
init_list(&el->events);
el->loop = loop;
el->lock = DOMAIN_NEW(event, name);
}
void ev_send(event_list *, event *);
#define ev_send_loop(l, e) ev_send(birdloop_event_list((l)), (e))
#define ev_schedule(e) ({ ASSERT_THE_BIRD_LOCKED; if (!ev_active((e))) ev_send(&global_event_list, (e)); })
#define ev_schedule_work(e) ({ ASSERT_THE_BIRD_LOCKED; if (!ev_active((e))) ev_send(&global_work_list, (e)); })
void ev_postpone(event *);
int ev_run_list(event_list *);
int ev_run_list_limited(event_list *, uint);
#define LEGACY_EVENT_LIST(l) (((l) == &global_event_list) || ((l) == &global_work_list))
_Bool birdloop_inside(struct birdloop *loop);
static inline int
ev_active(event *e)
{
return e->n.next != NULL;
if (e->list == NULL)
return 0;
ASSERT_DIE(birdloop_inside(e->list->loop));
return enlisted(&e->n);
}
static inline event*

4
lib/event_test.c
View File

@ -54,7 +54,7 @@ t_ev_run_list(void)
int i;
olock_init();
timer_init();
birdloop_init();
rt_init();
io_init();
if_init();
@ -81,7 +81,9 @@ main(int argc, char *argv[])
{
bt_init(argc, argv);
the_bird_lock();
bt_test_suite(t_ev_run_list, "Schedule and run 3 events in right order.");
the_bird_unlock();
return bt_exit_value();
}

54
lib/io-loop.h Normal file
View File

@ -0,0 +1,54 @@
/*
* BIRD -- I/O and event loop
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_IO_LOOP_H_
#define _BIRD_IO_LOOP_H_
#include "nest/bird.h"
#include "lib/lists.h"
#include "lib/locking.h"
#include "lib/resource.h"
#include "lib/event.h"
#include "lib/socket.h"
void sk_start(sock *s);
void sk_stop(sock *s);
void sk_reloop(sock *s, struct birdloop *loop);
extern struct birdloop main_birdloop;
/* Start a new birdloop owned by given pool and domain */
struct birdloop *birdloop_new(pool *p, uint order, const char *name);
/* Stop the loop. At the end, the @stopped callback is called unlocked in tail
* position to finish cleanup. Run birdloop_free() from that callback to free
* the loop itself. */
void birdloop_stop(struct birdloop *loop, void (*stopped)(void *data), void *data);
void birdloop_stop_self(struct birdloop *loop, void (*stopped)(void *data), void *data);
void birdloop_free(struct birdloop *loop);
/* Get birdloop's event list */
event_list *birdloop_event_list(struct birdloop *loop);
/* Get birdloop's time heap */
struct timeloop *birdloop_time_loop(struct birdloop *loop);
/* Enter and exit the birdloop */
void birdloop_enter(struct birdloop *loop);
void birdloop_leave(struct birdloop *loop);
_Bool birdloop_inside(struct birdloop *loop);
void birdloop_mask_wakeups(struct birdloop *loop);
void birdloop_unmask_wakeups(struct birdloop *loop);
void birdloop_link(struct birdloop *loop);
void birdloop_unlink(struct birdloop *loop);
void birdloop_ping(struct birdloop *loop);
void birdloop_init(void);
#endif /* _BIRD_IO_LOOP_H_ */

12
lib/lists.h
View File

@ -69,6 +69,18 @@ typedef union list { /* In fact two overlayed nodes */
#define EMPTY_LIST(list) (!(list).head->next)
static inline _Bool
enlisted(node *n)
{
switch ((!!n->next) + (!!n->prev))
{
case 0: return 0;
case 2: return 1;
case 1: bug("Garbled event list node");
}
bug("Maths is broken. And you should see a new heaven and a new earth: for the first heaven and the first earth had been passed away.");
}
#ifndef _BIRD_LISTS_C_
#define LIST_INLINE static inline

21
lib/locking.h
View File

@ -14,6 +14,9 @@ struct domain_generic;
/* Here define the global lock order; first to last. */
struct lock_order {
struct domain_generic *the_bird;
struct domain_generic *proto;
struct domain_generic *rtable;
struct domain_generic *event;
};
extern _Thread_local struct lock_order locking_stack;
@ -21,24 +24,40 @@ extern _Thread_local struct domain_generic **last_locked;
#define DOMAIN(type) struct domain__##type
#define DEFINE_DOMAIN(type) DOMAIN(type) { struct domain_generic *type; }
#define DOMAIN_ORDER(type) OFFSETOF(struct lock_order, type)
#define DOMAIN_NEW(type, name) (DOMAIN(type)) { .type = domain_new(name, OFFSETOF(struct lock_order, type)) }
#define DOMAIN_NEW(type, name) (DOMAIN(type)) { .type = domain_new(name, DOMAIN_ORDER(type)) }
struct domain_generic *domain_new(const char *name, uint order);
#define DOMAIN_FREE(type, d) domain_free((d).type)
void domain_free(struct domain_generic *);
#define DOMAIN_NULL(type) (DOMAIN(type)) {}
#define LOCK_DOMAIN(type, d) do_lock(((d).type), &(locking_stack.type))
#define UNLOCK_DOMAIN(type, d) do_unlock(((d).type), &(locking_stack.type))
#define DOMAIN_IS_LOCKED(type, d) (((d).type) == (locking_stack.type))
#define DG_IS_LOCKED(d) ((d) == *(DG_LSP(d)))
/* Internal for locking */
void do_lock(struct domain_generic *dg, struct domain_generic **lsp);
void do_unlock(struct domain_generic *dg, struct domain_generic **lsp);
uint dg_order(struct domain_generic *dg);
#define DG_LSP(d) ((struct domain_generic **) (((void *) &locking_stack) + dg_order(d)))
#define DG_LOCK(d) do_lock(d, DG_LSP(d))
#define DG_UNLOCK(d) do_unlock(d, DG_LSP(d))
/* Use with care. To be removed in near future. */
DEFINE_DOMAIN(the_bird);
extern DOMAIN(the_bird) the_bird_domain;
#define the_bird_lock() LOCK_DOMAIN(the_bird, the_bird_domain)
#define the_bird_unlock() UNLOCK_DOMAIN(the_bird, the_bird_domain)
#define the_bird_locked() DOMAIN_IS_LOCKED(the_bird, the_bird_domain)
#define ASSERT_THE_BIRD_LOCKED ({ if (!the_bird_locked()) bug("The BIRD lock must be locked here: %s:%d", __FILE__, __LINE__); })
#endif

6
lib/resource.c
View File

@ -29,12 +29,6 @@
* is freed upon shutdown of the module.
*/
struct pool {
resource r;
list inside;
const char *name;
};
static void pool_dump(resource *);
static void pool_free(resource *);
static resource *pool_lookup(resource *, unsigned long);

7
lib/resource.h
View File

@ -40,7 +40,12 @@ struct resclass {
/* Generic resource manipulation */
typedef struct pool pool;
typedef struct pool {
resource r;
list inside;
const char *name;
} pool;
void resource_init(void);
pool *rp_new(pool *, const char *); /* Create new pool */

3
lib/socket.h
View File

@ -12,6 +12,7 @@
#include <errno.h>
#include "lib/resource.h"
#include "lib/event.h"
#ifdef HAVE_LIBSSH
#define LIBSSH_LEGACY_0_4
#include <libssh/libssh.h>
@ -79,6 +80,7 @@ typedef struct birdsock {
const char *password; /* Password for MD5 authentication */
const char *err; /* Error message */
struct ssh_sock *ssh; /* Used in SK_SSH */
struct event reloop; /* Reloop event */
} sock;
sock *sock_new(pool *); /* Allocate new socket */
@ -129,6 +131,7 @@ extern int sk_priority_control; /* Suggested priority for control traffic, shou
#define SKF_TRUNCATED 0x200 /* Received packet was truncated, set by IO layer */
#define SKF_HDRINCL 0x400 /* Used internally */
#define SKF_PKTINFO 0x800 /* Used internally */
#define SKF_PASSIVE_THREAD 0x1000 /* Child sockets used in thread, do not add to main loop */
/*
* Socket types SA SP DA DP IF TTL SendTo (?=may, -=must not, *=must)

53
lib/timer.c
View File

@ -37,15 +37,8 @@
#include "lib/resource.h"
#include "lib/timer.h"
struct timeloop main_timeloop;
#include <pthread.h>
/* Data accessed and modified from proto/bfd/io.c */
_Thread_local struct timeloop *local_timeloop;
_Atomic btime last_time;
_Atomic btime real_time;
@ -76,7 +69,7 @@ tm_dump(resource *r)
if (t->recurrent)
debug("recur %d, ", t->recurrent);
if (t->expires)
debug("expires in %d ms)\n", (t->expires - current_time()) TO_MS);
debug("in loop %p expires in %d ms)\n", t->loop, (t->expires - current_time()) TO_MS);
else
debug("inactive)\n");
}
@ -99,8 +92,8 @@ tm_new(pool *p)
return t;
}
void
tm_set(timer *t, btime when)
static void
tm_set_in_tl(timer *t, btime when, struct timeloop *local_timeloop)
{
uint tc = timers_count(local_timeloop);
@ -122,17 +115,17 @@ tm_set(timer *t, btime when)
HEAP_DECREASE(local_timeloop->timers.data, tc, timer *, TIMER_LESS, TIMER_SWAP, t->index);
}
#ifdef CONFIG_BFD
/* Hack to notify BFD loops */
if ((local_timeloop != &main_timeloop) && (t->index == 1))
wakeup_kick_current();
#endif
t->loop = local_timeloop;
if ((t->index == 1) && (local_timeloop->coro != this_coro))
birdloop_ping(local_timeloop->loop);
}
void
tm_start(timer *t, btime after)
tm_set_in(timer *t, btime when, struct birdloop *loop)
{
tm_set(t, current_time() + MAX(after, 0));
ASSERT_DIE(birdloop_inside(loop));
tm_set_in_tl(t, when, birdloop_time_loop(loop));
}
void
@ -141,18 +134,23 @@ tm_stop(timer *t)
if (!t->expires)
return;
uint tc = timers_count(local_timeloop);
TLOCK_TIMER_ASSERT(t->loop);
HEAP_DELETE(local_timeloop->timers.data, tc, timer *, TIMER_LESS, TIMER_SWAP, t->index);
BUFFER_POP(local_timeloop->timers);
uint tc = timers_count(t->loop);
HEAP_DELETE(t->loop->timers.data, tc, timer *, TIMER_LESS, TIMER_SWAP, t->index);
BUFFER_POP(t->loop->timers);
t->index = -1;
t->expires = 0;
t->loop = NULL;
}
void
timers_init(struct timeloop *loop, pool *p)
{
TLOCK_TIMER_ASSERT(loop);
BUFFER_INIT(loop->timers, p, 4);
BUFFER_PUSH(loop->timers) = NULL;
}
@ -160,8 +158,10 @@ timers_init(struct timeloop *loop, pool *p)
void io_log_event(void *hook, void *data);
void
timers_fire(struct timeloop *loop)
timers_fire(struct timeloop *loop, int io_log)
{
TLOCK_TIMER_ASSERT(loop);
btime base_time;
timer *t;
@ -183,13 +183,13 @@ timers_fire(struct timeloop *loop)
if (t->randomize)
when += random() % (t->randomize + 1);
tm_set(t, when);
tm_set_in_tl(t, when, loop);
}
else
tm_stop(t);
/* This is ugly hack, we want to log just timers executed from the main I/O loop */
if (loop == &main_timeloop)
if (io_log)
io_log_event(t->hook, t->data);
t->hook(t);
@ -197,13 +197,6 @@ timers_fire(struct timeloop *loop)
}
}
void
timer_init(void)
{
timers_init(&main_timeloop, &root_pool);
local_timeloop = &main_timeloop;
}
/**
* tm_parse_time - parse a date and time

28
lib/timer.h
View File

@ -12,6 +12,8 @@
#include "nest/bird.h"
#include "lib/buffer.h"
#include "lib/io-loop.h"
#include "lib/locking.h"
#include "lib/resource.h"
#include <stdatomic.h>
@ -29,22 +31,27 @@ typedef struct timer
uint randomize; /* Amount of randomization */
uint recurrent; /* Timer recurrence */
struct timeloop *loop; /* Loop where the timer is active */
int index;
} timer;
struct timeloop
{
BUFFER_(timer *) timers;
struct domain_generic *domain;
struct birdloop *loop;
struct coroutine *coro;
};
#define TLOCK_TIMER_ASSERT(loop) ASSERT_DIE((loop)->domain && DG_IS_LOCKED((loop)->domain))
#define TLOCK_LOCAL_ASSERT(loop) ASSERT_DIE(!(loop)->domain || DG_IS_LOCKED((loop)->domain))
static inline uint timers_count(struct timeloop *loop)
{ return loop->timers.used - 1; }
{ TLOCK_TIMER_ASSERT(loop); return loop->timers.used - 1; }
static inline timer *timers_first(struct timeloop *loop)
{ return (loop->timers.used > 1) ? loop->timers.data[1] : NULL; }
extern struct timeloop main_timeloop;
extern _Thread_local struct timeloop *local_timeloop;
{ TLOCK_TIMER_ASSERT(loop); return (loop->timers.used > 1) ? loop->timers.data[1] : NULL; }
#define current_time() atomic_load_explicit(&last_time, memory_order_acquire)
#define current_real_time() atomic_load_explicit(&real_time, memory_order_acquire)
@ -54,10 +61,13 @@ extern _Thread_local struct timeloop *local_timeloop;
extern btime boot_time;
timer *tm_new(pool *p);
void tm_set(timer *t, btime when);
void tm_start(timer *t, btime after);
#define tm_set(t, when) tm_set_in((t), (when), &main_birdloop)
#define tm_start(t, after) tm_start_in((t), (after), &main_birdloop)
void tm_stop(timer *t);
void tm_set_in(timer *t, btime when, struct birdloop *loop);
#define tm_start_in(t, after, loop) tm_set_in((t), (current_time() + MAX_((after), 0)), loop)
static inline int
tm_active(timer *t)
{
@ -101,9 +111,7 @@ void times_update(void);
/* For I/O loop */
void timers_init(struct timeloop *loop, pool *p);
void timers_fire(struct timeloop *loop);
void timer_init(void);
void timers_fire(struct timeloop *loop, int io_log);
struct timeformat {

1
nest/config.Y
View File

@ -472,6 +472,7 @@ proto: dev_proto '}' ;
dev_proto_start: proto_start DIRECT {
this_proto = proto_config_new(&proto_device, $1);
init_list(&DIRECT_CFG->iface_list);
this_proto->late_if_feed = 1;
}
;

161
nest/proto.c
View File

@ -15,6 +15,7 @@
#include "lib/event.h"
#include "lib/timer.h"
#include "lib/string.h"
#include "lib/coro.h"
#include "conf/conf.h"
#include "nest/rt.h"
#include "nest/iface.h"
@ -57,7 +58,28 @@ static void channel_feed_end(struct channel *c);
static void channel_export_stopped(struct rt_export_request *req);
static inline int proto_is_done(struct proto *p)
{ return (p->proto_state == PS_DOWN) && (p->active_channels == 0); }
{ return (p->proto_state == PS_DOWN) && proto_is_inactive(p); }
static inline event_list *proto_event_list(struct proto *p)
{ return p->loop == &main_birdloop ? &global_event_list : birdloop_event_list(p->loop); }
static inline event_list *proto_work_list(struct proto *p)
{ return p->loop == &main_birdloop ? &global_work_list : birdloop_event_list(p->loop); }
static inline void proto_send_event(struct proto *p)
{ ev_send(proto_event_list(p), p->event); }
#define PROTO_ENTER_FROM_MAIN(p) ({ \
ASSERT_DIE(birdloop_inside(&main_birdloop)); \
struct birdloop *_loop = (p)->loop; \
if (_loop != &main_birdloop) birdloop_enter(_loop); \
_loop; \
})
#define PROTO_LEAVE_FROM_MAIN(loop) ({ if (loop != &main_birdloop) birdloop_leave(loop); })
#define PROTO_LOCKED_FROM_MAIN(p) for (struct birdloop *_proto_loop = PROTO_ENTER_FROM_MAIN(p); _proto_loop; PROTO_LEAVE_FROM_MAIN(_proto_loop), (_proto_loop = NULL))
static inline int channel_is_active(struct channel *c)
{ return (c->channel_state != CS_DOWN); }
@ -467,6 +489,7 @@ channel_start_export(struct channel *c)
c->out_req = (struct rt_export_request) {
.name = rn,
.list = proto_work_list(c->proto),
.addr = c->out_subprefix,
.addr_mode = c->out_subprefix ? TE_ADDR_IN : TE_ADDR_NONE,
.trace_routes = c->debug | c->proto->debug,
@ -513,7 +536,7 @@ channel_check_stopped(struct channel *c)
return;
channel_set_state(c, CS_DOWN);
ev_schedule(c->proto->event);
proto_send_event(c->proto);
break;
case CS_PAUSE:
@ -633,6 +656,7 @@ channel_setup_in_table(struct channel *c)
{
c->reload_req = (struct rt_export_request) {
.name = mb_sprintf(c->proto->pool, "%s.%s.import", c->proto->name, c->name),
.list = proto_work_list(c->proto),
.trace_routes = c->debug | c->proto->debug,
.export_bulk = channel_reload_export_bulk,
.dump_req = channel_reload_dump_req,
@ -718,7 +742,7 @@ channel_do_down(struct channel *c)
/* Schedule protocol shutddown */
if (proto_is_done(c->proto))
ev_schedule(c->proto->event);
proto_send_event(c->proto);
}
void
@ -1029,18 +1053,36 @@ proto_configure_channel(struct proto *p, struct channel **pc, struct channel_con
return 1;
}
static void
proto_cleanup(struct proto *p)
{
rfree(p->pool);
p->pool = NULL;
p->active = 0;
proto_log_state_change(p);
proto_rethink_goal(p);
}
static void
proto_loop_stopped(void *ptr)
{
struct proto *p = ptr;
birdloop_enter(&main_birdloop);
p->loop = &main_birdloop;
p->event->list = NULL;
proto_cleanup(p);
birdloop_leave(&main_birdloop);
}
static void
proto_event(void *ptr)
{
struct proto *p = ptr;
if (p->do_start)
{
if_feed_baby(p);
p->do_start = 0;
}
if (p->do_stop)
{
if (p->proto == &proto_unix_iface)
@ -1049,14 +1091,10 @@ proto_event(void *ptr)
}
if (proto_is_done(p))
{
rfree(p->pool);
p->pool = NULL;
p->active = 0;
proto_log_state_change(p);
proto_rethink_goal(p);
}
if (p->loop != &main_birdloop)
birdloop_stop_self(p->loop, proto_loop_stopped, p);
else
proto_cleanup(p);
}
@ -1097,6 +1135,7 @@ proto_init(struct proto_config *c, node *n)
struct protocol *pr = c->protocol;
struct proto *p = pr->init(c);
p->loop = &main_birdloop;
p->proto_state = PS_DOWN;
p->last_state_change = current_time();
p->vrf = c->vrf;
@ -1113,11 +1152,21 @@ proto_init(struct proto_config *c, node *n)
static void
proto_start(struct proto *p)
{
/* Here we cannot use p->cf->name since it won't survive reconfiguration */
p->pool = rp_new(proto_pool, p->proto->name);
DBG("Kicking %s up\n", p->name);
PD(p, "Starting");
p->pool = rp_newf(proto_pool, "Protocol %s", p->cf->name);
if (graceful_restart_state == GRS_INIT)
p->gr_recovery = 1;
if (p->cf->loop_order != DOMAIN_ORDER(the_bird))
p->loop = birdloop_new(p->pool, p->cf->loop_order, p->pool->name);
p->event->list = proto_event_list(p);
PROTO_LOCKED_FROM_MAIN(p)
proto_notify_state(p, (p->proto->start ? p->proto->start(p) : PS_UP));
}
@ -1153,6 +1202,7 @@ proto_config_new(struct protocol *pr, int class)
cf->class = class;
cf->debug = new_config->proto_default_debug;
cf->mrtdump = new_config->proto_default_mrtdump;
cf->loop_order = DOMAIN_ORDER(the_bird);
init_list(&cf->channels);
@ -1441,12 +1491,21 @@ protos_commit(struct config *new, struct config *old, int force_reconfig, int ty
proto_rethink_goal(p);
}
static void
proto_shutdown(struct proto *p)
{
if (p->proto_state == PS_START || p->proto_state == PS_UP)
{
/* Going down */
DBG("Kicking %s down\n", p->name);
PD(p, "Shutting down");
proto_notify_state(p, (p->proto->shutdown ? p->proto->shutdown(p) : PS_DOWN));
}
}
static void
proto_rethink_goal(struct proto *p)
{
struct protocol *q;
byte goal;
if (p->reconfiguring && !p->active)
{
struct proto_config *nc = p->cf_new;
@ -1466,32 +1525,12 @@ proto_rethink_goal(struct proto *p)
/* Determine what state we want to reach */
if (p->disabled || p->reconfiguring)
goal = PS_DOWN;
else
goal = PS_UP;
q = p->proto;
if (goal == PS_UP)
{
if (!p->active)
{
/* Going up */
DBG("Kicking %s up\n", p->name);
PD(p, "Starting");
proto_start(p);
proto_notify_state(p, (q->start ? q->start(p) : PS_UP));
}
}
else
{
if (p->proto_state == PS_START || p->proto_state == PS_UP)
{
/* Going down */
DBG("Kicking %s down\n", p->name);
PD(p, "Shutting down");
proto_notify_state(p, (q->shutdown ? q->shutdown(p) : PS_DOWN));
}
PROTO_LOCKED_FROM_MAIN(p)
proto_shutdown(p);
}
else if (!p->active)
proto_start(p);
}
struct proto *
@ -1696,7 +1735,7 @@ protos_dump_all(void)
#define DPF(x) (p->x ? " " #x : "")
debug(" protocol %s (%p) state %s with %d active channels flags: %s%s%s%s%s\n",
p->name, p, p_states[p->proto_state], p->active_channels,
DPF(disabled), DPF(active), DPF(do_start), DPF(do_stop), DPF(reconfiguring));
DPF(disabled), DPF(active), DPF(do_stop), DPF(reconfiguring));
#undef DPF
struct channel *c;
@ -1932,8 +1971,8 @@ static inline void
proto_do_start(struct proto *p)
{
p->active = 1;
p->do_start = 1;
ev_schedule(p->event);
if (!p->cf->late_if_feed)
if_feed_baby(p);
}
static void
@ -1946,6 +1985,9 @@ proto_do_up(struct proto *p)
}
proto_start_channels(p);
if (p->cf->late_if_feed)
if_feed_baby(p);
}
static inline void
@ -1960,9 +2002,6 @@ proto_do_stop(struct proto *p)
p->down_sched = 0;
p->gr_recovery = 0;
p->do_stop = 1;
ev_schedule(p->event);
if (p->main_source)
{
rt_unlock_source(p->main_source);
@ -1970,6 +2009,9 @@ proto_do_stop(struct proto *p)
}
proto_stop_channels(p);
p->do_stop = 1;
proto_send_event(p);
}
static void
@ -1980,7 +2022,7 @@ proto_do_down(struct proto *p)
/* Shutdown is finished in the protocol event */
if (proto_is_done(p))
ev_schedule(p->event);
proto_send_event(p);
}
@ -2219,7 +2261,7 @@ proto_cmd_disable(struct proto *p, uintptr_t arg, int cnt UNUSED)
p->disabled = 1;
p->down_code = PDC_CMD_DISABLE;
proto_set_message(p, (char *) arg, -1);
proto_rethink_goal(p);
proto_shutdown(p);
cli_msg(-9, "%s: disabled", p->name);
}
@ -2252,9 +2294,9 @@ proto_cmd_restart(struct proto *p, uintptr_t arg, int cnt UNUSED)
p->disabled = 1;
p->down_code = PDC_CMD_RESTART;
proto_set_message(p, (char *) arg, -1);
proto_rethink_goal(p);
proto_shutdown(p);
p->disabled = 0;
proto_rethink_goal(p);
/* After the protocol shuts down, proto_rethink_goal() is run from proto_event. */
cli_msg(-12, "%s: restarted", p->name);
}
@ -2329,7 +2371,9 @@ proto_apply_cmd_symbol(const struct symbol *s, void (* cmd)(struct proto *, uint
if (s->proto->proto)
{
cmd(s->proto->proto, arg, 0);
struct proto *p = s->proto->proto;
PROTO_LOCKED_FROM_MAIN(p)
cmd(p, arg, 0);
cli_msg(0, "");
}
else
@ -2344,7 +2388,8 @@ proto_apply_cmd_patt(const char *patt, void (* cmd)(struct proto *, uintptr_t, i
WALK_LIST(p, proto_list)
if (!patt || patmatch(patt, p->name))
cmd(p, arg, cnt++);
PROTO_LOCKED_FROM_MAIN(p)
cmd(p, arg, cnt++);
if (!cnt)
cli_msg(8003, "No protocols match");

7
nest/protocol.h
View File

@ -102,8 +102,10 @@ struct proto_config {
u8 net_type; /* Protocol network type (NET_*), 0 for undefined */
u8 disabled; /* Protocol enabled/disabled by default */
u8 vrf_set; /* Related VRF instance (below) is defined */
u8 late_if_feed; /* Delay interface feed after channels are up */
u32 debug, mrtdump; /* Debugging bitfields, both use D_* constants */
u32 router_id; /* Protocol specific router ID */
uint loop_order; /* Launch a birdloop on this locking level; use DOMAIN_ORDER(the_bird) for mainloop */
list channels; /* List of channel configs (struct channel_config) */
struct iface *vrf; /* Related VRF instance, NULL if global */
@ -121,6 +123,7 @@ struct proto {
struct proto_config *cf_new; /* Configuration we want to switch to after shutdown (NULL=delete) */
pool *pool; /* Pool containing local objects */
event *event; /* Protocol event */
struct birdloop *loop; /* BIRDloop running this protocol */
list channels; /* List of channels to rtables (struct channel) */
struct channel *main_channel; /* Primary channel */
@ -131,12 +134,12 @@ struct proto {
u32 debug; /* Debugging flags */
u32 mrtdump; /* MRTDump flags */
uint active_channels; /* Number of active channels */
uint active_coroutines; /* Number of active coroutines */
byte net_type; /* Protocol network type (NET_*), 0 for undefined */
byte disabled; /* Manually disabled */
byte vrf_set; /* Related VRF instance (above) is defined */
byte proto_state; /* Protocol state machine (PS_*, see below) */
byte active; /* From PS_START to cleanup after PS_STOP */
byte do_start; /* Start actions are scheduled */
byte do_stop; /* Stop actions are scheduled */
byte reconfiguring; /* We're shutting down due to reconfiguration */
byte gr_recovery; /* Protocol should participate in graceful restart recovery */
@ -338,6 +341,8 @@ void proto_notify_state(struct proto *p, unsigned state);
* as a result of received ROUTE-REFRESH request).
*/
static inline int proto_is_inactive(struct proto *p)
{ return (p->active_channels == 0) && (p->active_coroutines == 0); }
/*

1
nest/rt-show.c
View File

@ -285,6 +285,7 @@ rt_show_cont(struct rt_show_data *d)
d->req = (struct rt_export_request) {
.addr = d->addr,
.name = "CLI Show Route",
.list = &global_work_list,
.export_bulk = rt_show_net_export_bulk,
.dump_req = rt_show_dump_req,
.log_state_change = rt_show_log_state_change,

18
nest/rt-table.c
View File

@ -1415,6 +1415,12 @@ rt_next_export(struct rt_export_hook *hook, struct rt_exporter *tab)
return tab->first;
}
static inline void
rt_send_export_event(struct rt_export_hook *hook)
{
ev_send(hook->req->list, hook->event);
}
static void
rt_announce_exports(timer *tm)
{
@ -1426,7 +1432,7 @@ rt_announce_exports(timer *tm)
if (atomic_load_explicit(&c->export_state, memory_order_acquire) != TES_READY)
continue;
ev_schedule_work(c->event);
rt_send_export_event(c);
}
}
@ -1479,7 +1485,7 @@ rt_export_hook(void *_data)
rte_update_unlock();
}
ev_schedule_work(c->event);
rt_send_export_event(c);
}
@ -2097,7 +2103,7 @@ rt_request_export(struct rt_exporter *re, struct rt_export_request *req)
/* Regular export */
rt_set_export_state(hook, TES_FEEDING);
ev_schedule_work(hook->event);
rt_send_export_event(hook);
}
static void
@ -2146,7 +2152,7 @@ rt_stop_export(struct rt_export_request *req, void (*stopped)(struct rt_export_r
rt_set_export_state(hook, TES_STOP);
/* Run the stopped event */
ev_schedule(hook->event);
rt_send_export_event(hook);
}
/**
@ -3727,7 +3733,7 @@ rt_feed_done(struct rt_export_hook *c)
rt_set_export_state(c, TES_READY);
ev_schedule_work(c->event);
rt_send_export_event(c);
}
/**
@ -3756,7 +3762,7 @@ rt_feed_by_fib(void *data)
if (max_feed <= 0)
{
FIB_ITERATE_PUT(fit);
ev_schedule_work(c->event);
rt_send_export_event(c);
return;
}

3
nest/rt.h
View File

@ -17,6 +17,7 @@
#include "lib/type.h"
#include "lib/fib.h"
#include "lib/route.h"
#include "lib/event.h"
#include <stdatomic.h>
@ -238,6 +239,8 @@ struct rt_export_request {
u8 trace_routes;
u8 addr_mode; /* Network prefilter mode (TE_ADDR_*) */
event_list *list; /* Where to schedule export events */
/* There are two methods of export. You can either request feeding every single change
* or feeding the whole route feed. In case of regular export, &export_one is preferred.
* Anyway, when feeding, &export_bulk is preferred, falling back to &export_one.

2
proto/bfd/Makefile
View File

@ -1,4 +1,4 @@
src := bfd.c io.c packets.c
src := bfd.c packets.c
obj := $(src-o-files)
$(all-daemon)
$(cf-local)

165
proto/bfd/bfd.c
View File

@ -113,8 +113,16 @@
#define HASH_IP_EQ(a1,n1,a2,n2) ipa_equal(a1, a2) && n1 == n2
#define HASH_IP_FN(a,n) ipa_hash(a) ^ u32_hash(n)
static list STATIC_LIST_INIT(bfd_proto_list);
static list STATIC_LIST_INIT(bfd_wait_list);
DEFINE_DOMAIN(rtable);
#define BFD_LOCK LOCK_DOMAIN(rtable, bfd_global.lock)
#define BFD_UNLOCK UNLOCK_DOMAIN(rtable, bfd_global.lock)
static struct {
DOMAIN(rtable) lock;
list wait_list;
list pickup_list;
list proto_list;
} bfd_global;
const char *bfd_state_names[] = { "AdminDown", "Down", "Init", "Up" };
@ -188,7 +196,7 @@ bfd_session_update_tx_interval(struct bfd_session *s)
return;
/* Set timer relative to last tx_timer event */
tm_set(s->tx_timer, s->last_tx + tx_int_l);
tm_set_in(s->tx_timer, s->last_tx + tx_int_l, s->ifa->bfd->p.loop);
}
static void
@ -202,7 +210,7 @@ bfd_session_update_detection_time(struct bfd_session *s, int kick)
if (!s->last_rx)
return;
tm_set(s->hold_timer, s->last_rx + timeout);
tm_set_in(s->hold_timer, s->last_rx + timeout, s->ifa->bfd->p.loop);
}
static void
@ -226,7 +234,7 @@ bfd_session_control_tx_timer(struct bfd_session *s, int reset)
if (reset || !tm_active(s->tx_timer))
{
s->last_tx = 0;
tm_start(s->tx_timer, 0);
tm_start_in(s->tx_timer, 0, s->ifa->bfd->p.loop);
}
return;
@ -419,7 +427,7 @@ bfd_get_free_id(struct bfd_proto *p)
static struct bfd_session *
bfd_add_session(struct bfd_proto *p, ip_addr addr, ip_addr local, struct iface *iface, struct bfd_options *opts)
{
birdloop_enter(p->loop);
ASSERT_DIE(birdloop_inside(p->p.loop));
struct bfd_iface *ifa = bfd_get_iface(p, local, iface);
@ -454,8 +462,6 @@ bfd_add_session(struct bfd_proto *p, ip_addr addr, ip_addr local, struct iface *
TRACE(D_EVENTS, "Session to %I added", s->addr);
birdloop_leave(p->loop);
return s;
}
@ -463,38 +469,34 @@ bfd_add_session(struct bfd_proto *p, ip_addr addr, ip_addr local, struct iface *
static void
bfd_open_session(struct bfd_proto *p, struct bfd_session *s, ip_addr local, struct iface *ifa)
{
birdloop_enter(p->loop);
birdloop_enter(p->p.loop);
s->opened = 1;
bfd_session_control_tx_timer(s);
birdloop_leave(p->loop);
birdloop_leave(p->p.loop);
}
static void
bfd_close_session(struct bfd_proto *p, struct bfd_session *s)
{
birdloop_enter(p->loop);
birdloop_enter(p->p.loop);
s->opened = 0;
bfd_session_update_state(s, BFD_STATE_DOWN, BFD_DIAG_PATH_DOWN);
bfd_session_control_tx_timer(s);
birdloop_leave(p->loop);
birdloop_leave(p->p.loop);
}
*/
static void
bfd_remove_session(struct bfd_proto *p, struct bfd_session *s)
bfd_remove_session_locked(struct bfd_proto *p, struct bfd_session *s)
{
ip_addr ip = s->addr;
/* Caller should ensure that request list is empty */
birdloop_enter(p->loop);
/* Remove session from notify list if scheduled for notification */
/* No need for bfd_lock_sessions(), we are already protected by birdloop_enter() */
if (NODE_VALID(&s->n))
@ -508,11 +510,17 @@ bfd_remove_session(struct bfd_proto *p, struct bfd_session *s)
HASH_REMOVE(p->session_hash_id, HASH_ID, s);
HASH_REMOVE(p->session_hash_ip, HASH_IP, s);
TRACE(D_EVENTS, "Session to %I removed", s->addr);
sl_free(s);
}
TRACE(D_EVENTS, "Session to %I removed", ip);
birdloop_leave(p->loop);
static void
bfd_remove_session(struct bfd_proto *p, struct bfd_session *s)
{
birdloop_enter(p->p.loop);
bfd_remove_session_locked(p, s);
birdloop_leave(p->p.loop);
}
static void
@ -521,7 +529,7 @@ bfd_reconfigure_session(struct bfd_proto *p, struct bfd_session *s)
if (EMPTY_LIST(s->request_list))
return;
birdloop_enter(p->loop);
birdloop_enter(p->p.loop);
struct bfd_request *req = SKIP_BACK(struct bfd_request, n, HEAD(s->request_list));
s->cf = bfd_merge_options(s->ifa->cf, &req->opts);
@ -534,7 +542,7 @@ bfd_reconfigure_session(struct bfd_proto *p, struct bfd_session *s)
bfd_session_control_tx_timer(s, 0);
birdloop_leave(p->loop);
birdloop_leave(p->p.loop);
TRACE(D_EVENTS, "Session to %I reconfigured", s->addr);
}
@ -627,9 +635,9 @@ bfd_reconfigure_iface(struct bfd_proto *p, struct bfd_iface *ifa, struct bfd_con
(new->passive != old->passive);
/* This should be probably changed to not access ifa->cf from the BFD thread */
birdloop_enter(p->loop);
birdloop_enter(p->p.loop);
ifa->cf = new;
birdloop_leave(p->loop);
birdloop_leave(p->p.loop);
}
@ -690,41 +698,68 @@ bfd_add_request(struct bfd_proto *p, struct bfd_request *req)
}
static void
bfd_submit_request(struct bfd_request *req)
bfd_pickup_requests(void *_data UNUSED)
{
node *n;
WALK_LIST(n, bfd_global.proto_list)
{
struct bfd_proto *p = SKIP_BACK(struct bfd_proto, bfd_node, n);
birdloop_enter(p->p.loop);
BFD_LOCK;
WALK_LIST(n, bfd_proto_list)
if (bfd_add_request(SKIP_BACK(struct bfd_proto, bfd_node, n), req))
return;
node *rn, *rnxt;
WALK_LIST_DELSAFE(rn, rnxt, bfd_global.pickup_list)
bfd_add_request(p, SKIP_BACK(struct bfd_request, n, rn));
rem_node(&req->n);
add_tail(&bfd_wait_list, &req->n);
req->session = NULL;
bfd_request_notify(req, BFD_STATE_ADMIN_DOWN, 0);
BFD_UNLOCK;
birdloop_leave(p->p.loop);
}
BFD_LOCK;
node *rn, *rnxt;
WALK_LIST_DELSAFE(rn, rnxt, bfd_global.pickup_list)
{
rem_node(rn);
add_tail(&bfd_global.wait_list, rn);
bfd_request_notify(SKIP_BACK(struct bfd_request, n, rn), BFD_STATE_ADMIN_DOWN, 0);
}
BFD_UNLOCK;
}
static event bfd_pickup_event = { .hook = bfd_pickup_requests };
static void
bfd_take_requests(struct bfd_proto *p)
{
node *n, *nn;
WALK_LIST_DELSAFE(n, nn, bfd_wait_list)
BFD_LOCK;
WALK_LIST_DELSAFE(n, nn, bfd_global.wait_list)
bfd_add_request(p, SKIP_BACK(struct bfd_request, n, n));
BFD_UNLOCK;
}
static void
bfd_drop_requests(struct bfd_proto *p)
{
node *n;
HASH_WALK(p->session_hash_id, next_id, s)
BFD_LOCK;
HASH_WALK_DELSAFE(p->session_hash_id, next_id, s)
{
/* We assume that p is not in bfd_proto_list */
WALK_LIST_FIRST(n, s->request_list)
bfd_submit_request(SKIP_BACK(struct bfd_request, n, n));
{
struct bfd_request *req = SKIP_BACK(struct bfd_request, n, n);
rem_node(&req->n);
add_tail(&bfd_global.pickup_list, &req->n);
req->session = NULL;
bfd_request_notify(req, BFD_STATE_ADMIN_DOWN, 0);
}
ev_send(&global_event_list, &bfd_pickup_event);
bfd_remove_session_locked(p, s);
}
HASH_WALK_END;
BFD_UNLOCK;
}
static struct resclass bfd_request_class;
@ -737,9 +772,6 @@ bfd_request_session(pool *p, ip_addr addr, ip_addr local,
{
struct bfd_request *req = ralloc(p, &bfd_request_class);
/* Hack: self-link req->n, we will call rem_node() on it */
req->n.prev = req->n.next = &req->n;
req->addr = addr;
req->local = local;
req->iface = iface;
@ -748,11 +780,16 @@ bfd_request_session(pool *p, ip_addr addr, ip_addr local,
if (opts)
req->opts = *opts;
bfd_submit_request(req);
req->hook = hook;
req->data = data;
req->session = NULL;
BFD_LOCK;
add_tail(&bfd_global.pickup_list, &req->n);
ev_send(&global_event_list, &bfd_pickup_event);
BFD_UNLOCK;
return req;
}
@ -1023,10 +1060,10 @@ bfd_start(struct proto *P)
struct bfd_proto *p = (struct bfd_proto *) P;
struct bfd_config *cf = (struct bfd_config *) (P->cf);
p->loop = birdloop_new();
p->tpool = rp_new(NULL, "BFD thread root");
pthread_spin_init(&p->lock, PTHREAD_PROCESS_PRIVATE);
p->tpool = rp_new(P->pool, "BFD loop pool");
p->session_slab = sl_new(P->pool, sizeof(struct bfd_session));
HASH_INIT(p->session_hash_id, P->pool, 8);
HASH_INIT(p->session_hash_ip, P->pool, 8);
@ -1036,9 +1073,7 @@ bfd_start(struct proto *P)
init_list(&p->notify_list);
bfd_notify_init(p);
add_tail(&bfd_proto_list, &p->bfd_node);
birdloop_enter(p->loop);
add_tail(&bfd_global.proto_list, &p->bfd_node);
if (!cf->strict_bind)
{
@ -1055,42 +1090,33 @@ bfd_start(struct proto *P)
p->rx6_m = bfd_open_rx_sk(p, 1, SK_IPV6);
}
birdloop_leave(p->loop);
bfd_take_requests(p);
struct bfd_neighbor *n;
WALK_LIST(n, cf->neigh_list)
bfd_start_neighbor(p, n);
birdloop_start(p->loop);
return PS_UP;
}
static int
bfd_shutdown(struct proto *P)
{
struct bfd_proto *p = (struct bfd_proto *) P;
struct bfd_config *cf = (struct bfd_config *) (P->cf);
struct bfd_config *cf = (struct bfd_config *) (p->p.cf);
rem_node(&p->bfd_node);
birdloop_stop(p->loop);
struct bfd_neighbor *n;
WALK_LIST(n, cf->neigh_list)
bfd_stop_neighbor(p, n);
struct bfd_neighbor *bn;
WALK_LIST(bn, cf->neigh_list)
bfd_stop_neighbor(p, bn);
bfd_drop_requests(p);
/* FIXME: This is hack */
birdloop_enter(p->loop);
rfree(p->tpool);
birdloop_leave(p->loop);
birdloop_free(p->loop);
if (p->rx4_1) sk_stop(p->rx4_1);
if (p->rx4_m) sk_stop(p->rx4_m);
if (p->rx6_1) sk_stop(p->rx6_1);
if (p->rx6_m) sk_stop(p->rx6_m);
return PS_DOWN;
}
@ -1111,7 +1137,7 @@ bfd_reconfigure(struct proto *P, struct proto_config *c)
(new->strict_bind != old->strict_bind))
return 0;
birdloop_mask_wakeups(p->loop);
birdloop_mask_wakeups(p->p.loop);
WALK_LIST(ifa, p->iface_list)
bfd_reconfigure_iface(p, ifa, new);
@ -1125,7 +1151,7 @@ bfd_reconfigure(struct proto *P, struct proto_config *c)
bfd_reconfigure_neighbors(p, new);
birdloop_unmask_wakeups(p->loop);
birdloop_unmask_wakeups(p->p.loop);
return 1;
}
@ -1196,4 +1222,9 @@ void
bfd_build(void)
{
proto_build(&proto_bfd);
bfd_global.lock = DOMAIN_NEW(rtable, "BFD Global");
init_list(&bfd_global.wait_list);
init_list(&bfd_global.pickup_list);
init_list(&bfd_global.proto_list);
}

8
proto/bfd/bfd.h
View File

@ -17,12 +17,12 @@
#include "nest/password.h"
#include "conf/conf.h"
#include "lib/hash.h"
#include "lib/io-loop.h"
#include "lib/resource.h"
#include "lib/socket.h"
#include "lib/string.h"
#include "nest/bfd.h"
#include "io.h"
#define BFD_CONTROL_PORT 3784
@ -88,9 +88,11 @@ struct bfd_neighbor
struct bfd_proto
{
struct proto p;
struct birdloop *loop;
pool *tpool;
pthread_spinlock_t lock;
pool *tpool;
node bfd_node;
slab *session_slab;

1
proto/bfd/config.Y
View File

@ -37,6 +37,7 @@ proto: bfd_proto ;
bfd_proto_start: proto_start BFD
{
this_proto = proto_config_new(&proto_bfd, $1);
this_proto->loop_order = DOMAIN_ORDER(proto);
init_list(&BFD_CFG->patt_list);
init_list(&BFD_CFG->neigh_list);
BFD_CFG->accept_ipv4 = BFD_CFG->accept_ipv6 = 1;

34
proto/bfd/io.h
View File

@ -1,34 +0,0 @@
/*
* BIRD -- I/O and event loop
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_BFD_IO_H_
#define _BIRD_BFD_IO_H_
#include "nest/bird.h"
#include "lib/lists.h"
#include "lib/resource.h"
#include "lib/event.h"
#include "lib/timer.h"
#include "lib/socket.h"
void ev2_schedule(event *e);
void sk_start(sock *s);
void sk_stop(sock *s);
struct birdloop *birdloop_new(void);
void birdloop_start(struct birdloop *loop);
void birdloop_stop(struct birdloop *loop);
void birdloop_free(struct birdloop *loop);
void birdloop_enter(struct birdloop *loop);
void birdloop_leave(struct birdloop *loop);
void birdloop_mask_wakeups(struct birdloop *loop);
void birdloop_unmask_wakeups(struct birdloop *loop);
#endif /* _BIRD_BFD_IO_H_ */

4
proto/bfd/packets.c
View File

@ -412,7 +412,7 @@ bfd_err_hook(sock *sk, int err)
sock *
bfd_open_rx_sk(struct bfd_proto *p, int multihop, int af)
{
sock *sk = sk_new(p->tpool);
sock *sk = sk_new(p->p.pool);
sk->type = SK_UDP;
sk->subtype = af;
sk->sport = !multihop ? BFD_CONTROL_PORT : BFD_MULTI_CTL_PORT;
@ -475,7 +475,7 @@ bfd_open_rx_sk_bound(struct bfd_proto *p, ip_addr local, struct iface *ifa)
sock *
bfd_open_tx_sk(struct bfd_proto *p, ip_addr local, struct iface *ifa)
{
sock *sk = sk_new(p->tpool);
sock *sk = sk_new(p->p.pool);
sk->type = SK_UDP;
sk->saddr = local;
sk->dport = ifa ? BFD_CONTROL_PORT : BFD_MULTI_CTL_PORT;

1
proto/bgp/bgp.c
View File

@ -832,6 +832,7 @@ bgp_graceful_restart_feed(struct bgp_channel *c)
{
c->stale_feed = (struct rt_export_request) {
.name = "BGP-GR",
.list = &global_work_list,
.trace_routes = c->c.debug | c->c.proto->debug,
.dump_req = bgp_graceful_restart_feed_dump_req,
.log_state_change = bgp_graceful_restart_feed_log_state_change,

2
sysdep/unix/Makefile
View File

@ -1,4 +1,4 @@
src := alloc.c io.c krt.c log.c main.c random.c coroutine.c
src := alloc.c io.c io-loop.c krt.c log.c main.c random.c coroutine.c
obj := $(src-o-files)
$(all-daemon)
$(cf-local)

4
sysdep/unix/alloc.c
View File

@ -97,7 +97,7 @@ alloc_page(void)
struct free_page *fp = SKIP_BACK(struct free_page, n, HEAD(fps->pages));
rem_node(&fp->n);
if ((--fps->cnt < fps->min) && !shutting_down)
ev_schedule(&fps->cleanup);
ev_send(&global_work_list, &fps->cleanup);
bzero(fp, page_size);
return fp;
@ -124,7 +124,7 @@ free_page(void *ptr)
add_tail(&fps->pages, &fp->n);
if ((++fps->cnt > fps->max) && !shutting_down)
ev_schedule(&fps->cleanup);
ev_send(&global_work_list, &fps->cleanup);
#endif
}

21
sysdep/unix/coroutine.c
View File

@ -21,10 +21,9 @@
#include "lib/resource.h"
#include "lib/timer.h"
/* Using a rather big stack for coroutines to allow for stack-local allocations.
* In real world, the kernel doesn't alloc this memory until it is used.
* */
#define CORO_STACK_SIZE 1048576
#include "conf/conf.h"
#define CORO_STACK_SIZE 65536
/*
* Implementation of coroutines based on POSIX threads
@ -79,6 +78,11 @@ domain_free(struct domain_generic *dg)
xfree(dg);
}
uint dg_order(struct domain_generic *dg)
{
return dg->order;
}
void do_lock(struct domain_generic *dg, struct domain_generic **lsp)
{
if ((char *) lsp - (char *) &locking_stack != dg->order)
@ -89,7 +93,11 @@ void do_lock(struct domain_generic *dg, struct domain_generic **lsp)
if (*lsp)
bug("Inconsistent locking stack state on lock");
btime lock_begin = current_time();
pthread_mutex_lock(&dg->mutex);
btime duration = current_time() - lock_begin;
if (config && (duration > config->watchdog_warning))
log(L_WARN "Locking of %s took %d ms", dg->name, (int) (duration TO_MS));
if (dg->prev || dg->locked_by)
bug("Previous unlock not finished correctly");
@ -140,11 +148,16 @@ static struct resclass coro_class = {
.free = coro_free,
};
_Thread_local struct coroutine *this_coro = NULL;
static void *coro_entry(void *p)
{
struct coroutine *c = p;
ASSERT_DIE(c->entry);
this_coro = c;
c->entry(c->data);
ASSERT_DIE(coro_cleaned_up);

317
proto/bfd/io.c → sysdep/unix/io-loop.c
View File

@ -15,50 +15,47 @@
#include <sys/time.h>
#include "nest/bird.h"
#include "proto/bfd/io.h"
#include "lib/buffer.h"
#include "lib/coro.h"
#include "lib/lists.h"
#include "lib/resource.h"
#include "lib/event.h"
#include "lib/timer.h"
#include "lib/socket.h"
struct birdloop
{
pool *pool;
pthread_t thread;
pthread_mutex_t mutex;
u8 stop_called;
u8 poll_active;
u8 wakeup_masked;
int wakeup_fds[2];
struct timeloop time;
list event_list;
list sock_list;
uint sock_num;
BUFFER(sock *) poll_sk;
BUFFER(struct pollfd) poll_fd;
u8 poll_changed;
u8 close_scheduled;
};
#include "lib/io-loop.h"
#include "sysdep/unix/io-loop.h"
#include "conf/conf.h"
/*
* Current thread context
*/
static _Thread_local struct birdloop *birdloop_current;
_Thread_local struct birdloop *birdloop_current;
static _Thread_local struct birdloop *birdloop_wakeup_masked;
static _Thread_local uint birdloop_wakeup_masked_count;
static inline void
birdloop_set_current(struct birdloop *loop)
event_list *
birdloop_event_list(struct birdloop *loop)
{
birdloop_current = loop;
local_timeloop = loop ? &loop->time : &main_timeloop;
return &loop->event_list;
}
struct timeloop *
birdloop_time_loop(struct birdloop *loop)
{
return &loop->time;
}
_Bool
birdloop_inside(struct birdloop *loop)
{
for (struct birdloop *c = birdloop_current; c; c = c->prev_loop)
if (loop == c)
return 1;
return 0;
}
/*
@ -135,57 +132,17 @@ wakeup_do_kick(struct birdloop *loop)
pipe_kick(loop->wakeup_fds[1]);
}
static inline void
wakeup_kick(struct birdloop *loop)
void
birdloop_ping(struct birdloop *loop)
{
if (!loop->wakeup_masked)
wakeup_do_kick(loop);
u32 ping_sent = atomic_fetch_add_explicit(&loop->ping_sent, 1, memory_order_acq_rel);
if (ping_sent)
return;
if (loop == birdloop_wakeup_masked)
birdloop_wakeup_masked_count++;
else
loop->wakeup_masked = 2;
}
/* For notifications from outside */
void
wakeup_kick_current(void)
{
if (birdloop_current && birdloop_current->poll_active)
wakeup_kick(birdloop_current);
}
/*
* Events
*/
static inline uint
events_waiting(struct birdloop *loop)
{
return !EMPTY_LIST(loop->event_list);
}
static inline void
events_init(struct birdloop *loop)
{
init_list(&loop->event_list);
}
static void
events_fire(struct birdloop *loop)
{
times_update();
ev_run_list(&loop->event_list);
}
void
ev2_schedule(event *e)
{
if (birdloop_current->poll_active && EMPTY_LIST(birdloop_current->event_list))
wakeup_kick(birdloop_current);
if (e->n.next)
rem_node(&e->n);
add_tail(&birdloop_current->event_list, &e->n);
wakeup_do_kick(loop);
}
@ -213,13 +170,13 @@ sockets_add(struct birdloop *loop, sock *s)
s->index = -1;
loop->poll_changed = 1;
if (loop->poll_active)
wakeup_kick(loop);
birdloop_ping(loop);
}
void
sk_start(sock *s)
{
ASSERT_DIE(birdloop_current != &main_birdloop);
sockets_add(birdloop_current, s);
}
@ -230,28 +187,21 @@ sockets_remove(struct birdloop *loop, sock *s)
loop->sock_num--;
if (s->index >= 0)
{
loop->poll_sk.data[s->index] = NULL;
s->index = -1;
loop->poll_changed = 1;
/* Wakeup moved to sk_stop() */
s->index = -1;
loop->poll_changed = 1;
loop->close_scheduled = 1;
birdloop_ping(loop);
}
else
close(s->fd);
}
void
sk_stop(sock *s)
{
sockets_remove(birdloop_current, s);
if (birdloop_current->poll_active)
{
birdloop_current->close_scheduled = 1;
wakeup_kick(birdloop_current);
}
else
close(s->fd);
s->fd = -1;
}
static inline uint sk_want_events(sock *s)
@ -351,12 +301,15 @@ sockets_fire(struct birdloop *loop)
if (pfd->revents & POLLIN)
while (e && *psk && (*psk)->rx_hook)
e = sk_read(*psk, 0);
e = sk_read(*psk, pfd->revents);
e = 1;
if (pfd->revents & POLLOUT)
{
loop->poll_changed = 1;
while (e && *psk)
e = sk_write(*psk);
}
}
}
@ -365,106 +318,170 @@ sockets_fire(struct birdloop *loop)
* Birdloop
*/
static void *birdloop_main(void *arg);
struct birdloop main_birdloop;
static void birdloop_enter_locked(struct birdloop *loop);
void
birdloop_init(void)
{
wakeup_init(&main_birdloop);
main_birdloop.time.domain = the_bird_domain.the_bird;
main_birdloop.time.loop = &main_birdloop;
times_update();
timers_init(&main_birdloop.time, &root_pool);
birdloop_enter_locked(&main_birdloop);
}
static void birdloop_main(void *arg);
struct birdloop *
birdloop_new(void)
birdloop_new(pool *pp, uint order, const char *name)
{
pool *p = rp_new(NULL, "Birdloop root");
struct domain_generic *dg = domain_new(name, order);
pool *p = rp_new(pp, name);
struct birdloop *loop = mb_allocz(p, sizeof(struct birdloop));
loop->pool = p;
pthread_mutex_init(&loop->mutex, NULL);
loop->time.domain = dg;
loop->time.loop = loop;
birdloop_enter(loop);
wakeup_init(loop);
events_init(loop);
ev_init_list(&loop->event_list, loop, name);
timers_init(&loop->time, p);
sockets_init(loop);
loop->time.coro = coro_run(p, birdloop_main, loop);
birdloop_leave(loop);
return loop;
}
void
birdloop_start(struct birdloop *loop)
static void
birdloop_do_stop(struct birdloop *loop, void (*stopped)(void *data), void *data)
{
int rv = pthread_create(&loop->thread, NULL, birdloop_main, loop);
if (rv)
die("pthread_create(): %M", rv);
loop->stopped = stopped;
loop->stop_data = data;
wakeup_do_kick(loop);
}
void
birdloop_stop(struct birdloop *loop)
birdloop_stop(struct birdloop *loop, void (*stopped)(void *data), void *data)
{
pthread_mutex_lock(&loop->mutex);
loop->stop_called = 1;
wakeup_do_kick(loop);
pthread_mutex_unlock(&loop->mutex);
DG_LOCK(loop->time.domain);
birdloop_do_stop(loop, stopped, data);
DG_UNLOCK(loop->time.domain);
}
int rv = pthread_join(loop->thread, NULL);
if (rv)
die("pthread_join(): %M", rv);
void
birdloop_stop_self(struct birdloop *loop, void (*stopped)(void *data), void *data)
{
ASSERT_DIE(loop == birdloop_current);
ASSERT_DIE(DG_IS_LOCKED(loop->time.domain));
birdloop_do_stop(loop, stopped, data);
}
void
birdloop_free(struct birdloop *loop)
{
ASSERT_DIE(loop->links == 0);
domain_free(loop->time.domain);
rfree(loop->pool);
}
static void
birdloop_enter_locked(struct birdloop *loop)
{
ASSERT_DIE(DG_IS_LOCKED(loop->time.domain));
ASSERT_DIE(!birdloop_inside(loop));
/* Store the old context */
loop->prev_loop = birdloop_current;
/* Put the new context */
birdloop_current = loop;
}
void
birdloop_enter(struct birdloop *loop)
{
/* TODO: these functions could save and restore old context */
pthread_mutex_lock(&loop->mutex);
birdloop_set_current(loop);
DG_LOCK(loop->time.domain);
return birdloop_enter_locked(loop);
}
static void
birdloop_leave_locked(struct birdloop *loop)
{
/* Check the current context */
ASSERT_DIE(birdloop_current == loop);
/* Restore the old context */
birdloop_current = loop->prev_loop;
}
void
birdloop_leave(struct birdloop *loop)
{
/* TODO: these functions could save and restore old context */
birdloop_set_current(NULL);
pthread_mutex_unlock(&loop->mutex);
birdloop_leave_locked(loop);
DG_UNLOCK(loop->time.domain);
}
void
birdloop_mask_wakeups(struct birdloop *loop)
{
pthread_mutex_lock(&loop->mutex);
loop->wakeup_masked = 1;
pthread_mutex_unlock(&loop->mutex);
ASSERT_DIE(birdloop_wakeup_masked == NULL);
birdloop_wakeup_masked = loop;
}
void
birdloop_unmask_wakeups(struct birdloop *loop)
{
pthread_mutex_lock(&loop->mutex);
if (loop->wakeup_masked == 2)
ASSERT_DIE(birdloop_wakeup_masked == loop);
birdloop_wakeup_masked = NULL;
if (birdloop_wakeup_masked_count)
wakeup_do_kick(loop);
loop->wakeup_masked = 0;
pthread_mutex_unlock(&loop->mutex);
birdloop_wakeup_masked_count = 0;
}
static void *
void
birdloop_link(struct birdloop *loop)
{
ASSERT_DIE(birdloop_inside(loop));
loop->links++;
}
void
birdloop_unlink(struct birdloop *loop)
{
ASSERT_DIE(birdloop_inside(loop));
loop->links--;
}
static void
birdloop_main(void *arg)
{
struct birdloop *loop = arg;
timer *t;
int rv, timeout;
birdloop_set_current(loop);
btime loop_begin = current_time();
tmp_init(loop->pool);
pthread_mutex_lock(&loop->mutex);
birdloop_enter(loop);
while (1)
{
events_fire(loop);
timers_fire(&loop->time);
times_update();
if (events_waiting(loop))
timers_fire(&loop->time, 0);
if (ev_run_list(&loop->event_list))
timeout = 0;
else if (t = timers_first(&loop->time))
timeout = (tm_remains(t) TO_MS) + 1;
@ -474,8 +491,11 @@ birdloop_main(void *arg)
if (loop->poll_changed)
sockets_prepare(loop);
loop->poll_active = 1;
pthread_mutex_unlock(&loop->mutex);
btime duration = current_time() - loop_begin;
if (duration > config->watchdog_warning)
log(L_WARN "I/O loop cycle took %d ms", (int) (duration TO_MS));
birdloop_leave(loop);
try:
rv = poll(loop->poll_fd.data, loop->poll_fd.used, timeout);
@ -486,25 +506,32 @@ birdloop_main(void *arg)
die("poll: %m");
}
pthread_mutex_lock(&loop->mutex);
loop->poll_active = 0;
birdloop_enter(loop);
if (loop->close_scheduled)
sockets_close_fds(loop);
if (loop->stop_called)
if (loop->stopped)
break;
loop_begin = current_time();
if (rv)
sockets_fire(loop);
timers_fire(&loop->time);
atomic_exchange_explicit(&loop->ping_sent, 0, memory_order_acq_rel);
}
loop->stop_called = 0;
pthread_mutex_unlock(&loop->mutex);
/* Flush remaining events */
ASSERT_DIE(!ev_run_list(&loop->event_list));
return NULL;
/* No timers allowed */
ASSERT_DIE(timers_count(&loop->time) == 0);
ASSERT_DIE(EMPTY_LIST(loop->sock_list));
ASSERT_DIE(loop->sock_num == 0);
birdloop_leave(loop);
loop->stopped(loop->stop_data);
}

35
sysdep/unix/io-loop.h Normal file
View File

@ -0,0 +1,35 @@
/*
* BIRD -- I/O and event loop
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_SYSDEP_UNIX_IO_LOOP_H_
#define _BIRD_SYSDEP_UNIX_IO_LOOP_H_
struct birdloop
{
pool *pool;
struct timeloop time;
event_list event_list;
list sock_list;
uint sock_num;
BUFFER(sock *) poll_sk;
BUFFER(struct pollfd) poll_fd;
u8 poll_changed;
u8 close_scheduled;
_Atomic u32 ping_sent;
int wakeup_fds[2];
uint links;
void (*stopped)(void *data);
void *stop_data;
struct birdloop *prev_loop;
};
#endif

85
sysdep/unix/io.c
View File

@ -43,6 +43,7 @@
#include "conf/conf.h"
#include "sysdep/unix/unix.h"
#include "sysdep/unix/io-loop.h"
#include CONFIG_INCLUDE_SYSIO_H
/* Maximum number of calls of tx handler for one socket in one
@ -800,18 +801,16 @@ sk_free(resource *r)
sk_ssh_free(s);
#endif
if (s->fd < 0)
if ((s->fd < 0) || (s->flags & SKF_THREAD))
return;
/* FIXME: we should call sk_stop() for SKF_THREAD sockets */
if (!(s->flags & SKF_THREAD))
{
if (s == current_sock)
current_sock = sk_next(s);
if (s == stored_sock)
stored_sock = sk_next(s);
if (s == current_sock)
current_sock = sk_next(s);
if (s == stored_sock)
stored_sock = sk_next(s);
if (enlisted(&s->n))
rem_node(&s->n);
}
if (s->type != SK_SSH && s->type != SK_SSH_ACTIVE)
close(s->fd);
@ -1104,7 +1103,11 @@ sk_passive_connected(sock *s, int type)
return 1;
}
sk_insert(t);
if (s->flags & SKF_PASSIVE_THREAD)
t->flags |= SKF_THREAD;
else
sk_insert(t);
sk_alloc_bufs(t);
s->rx_hook(t, 0);
return 1;
@ -1512,6 +1515,36 @@ sk_open_unix(sock *s, char *name)
return 0;
}
static void
sk_reloop_hook(void *_vs)
{
sock *s = _vs;
if (birdloop_inside(&main_birdloop))
{
s->flags &= ~SKF_THREAD;
sk_insert(s);
}
else
{
s->flags |= SKF_THREAD;
sk_start(s);
}
}
void
sk_reloop(sock *s, struct birdloop *loop)
{
if (enlisted(&s->n))
rem_node(&s->n);
s->reloop = (event) {
.hook = sk_reloop_hook,
.data = s,
};
ev_send_loop(loop, &s->reloop);
}
#define CMSG_RX_SPACE MAX(CMSG4_SPACE_PKTINFO+CMSG4_SPACE_TTL, \
CMSG6_SPACE_PKTINFO+CMSG6_SPACE_TTL)
@ -2164,8 +2197,9 @@ void
io_init(void)
{
init_list(&sock_list);
init_list(&global_event_list);
init_list(&global_work_list);
ev_init_list(&global_event_list, &main_birdloop, "Global event list");
ev_init_list(&global_work_list, &main_birdloop, "Global work list");
ev_init_list(&main_birdloop.event_list, &main_birdloop, "Global fast event list");
krt_io_init();
// XXX init_times();
// XXX update_times();
@ -2179,14 +2213,7 @@ static int short_loops = 0;
#define SHORT_LOOP_MAX 10
#define WORK_EVENTS_MAX 10
static int poll_reload_pipe[2];
void
io_loop_reload(void)
{
char b;
write(poll_reload_pipe[1], &b, 1);
}
void pipe_drain(int fd);
void
io_loop(void)
@ -2199,21 +2226,19 @@ io_loop(void)
int fdmax = 256;
struct pollfd *pfd = xmalloc(fdmax * sizeof(struct pollfd));
if (pipe(poll_reload_pipe) < 0)
die("pipe(poll_reload_pipe) failed: %m");
watchdog_start1();
for(;;)
{
times_update();
events = ev_run_list(&global_event_list);
events = ev_run_list_limited(&global_work_list, WORK_EVENTS_MAX) || events;
timers_fire(&main_timeloop);
events = ev_run_list(&main_birdloop.event_list) || events;
timers_fire(&main_birdloop.time, 1);
io_close_event();
// FIXME
poll_tout = (events ? 0 : 3000); /* Time in milliseconds */
if (t = timers_first(&main_timeloop))
if (t = timers_first(&main_birdloop.time))
{
times_update();
timeout = (tm_remains(t) TO_MS) + 1;
@ -2221,7 +2246,7 @@ io_loop(void)
}
/* A hack to reload main io_loop() when something has changed asynchronously. */
pfd[0].fd = poll_reload_pipe[0];
pfd[0].fd = main_birdloop.wakeup_fds[0];
pfd[0].events = POLLIN;
nfds = 1;
@ -2284,9 +2309,9 @@ io_loop(void)
/* And finally enter poll() to find active sockets */
watchdog_stop();
the_bird_unlock();
birdloop_leave(&main_birdloop);
pout = poll(pfd, nfds, poll_tout);
the_bird_lock();
birdloop_enter(&main_birdloop);
watchdog_start();
if (pout < 0)
@ -2300,8 +2325,8 @@ io_loop(void)
if (pfd[0].revents & POLLIN)
{
/* IO loop reload requested */
char b;
read(poll_reload_pipe[0], &b, 1);
pipe_drain(main_birdloop.wakeup_fds[0]);
atomic_exchange_explicit(&main_birdloop.ping_sent, 0, memory_order_acq_rel);
continue;
}

5
sysdep/unix/main.c
View File

@ -878,10 +878,12 @@ main(int argc, char **argv)
parse_args(argc, argv);
log_switch(1, NULL, NULL);
the_bird_lock();
random_init();
net_init();
resource_init();
timer_init();
birdloop_init();
olock_init();
rt_init();
io_init();
@ -929,7 +931,6 @@ main(int argc, char **argv)
dup2(0, 2);
}
the_bird_lock();
main_thread_init();

1
sysdep/unix/unix.h
View File

@ -106,7 +106,6 @@ extern volatile sig_atomic_t async_shutdown_flag;
void io_init(void);
void io_loop(void);
void io_loop_reload(void);
void io_log_dump(void);
int sk_open_unix(struct birdsock *s, char *name);
struct rfile *rf_open(struct pool *, const char *name, const char *mode);

5
test/birdtest.c
View File

@ -21,6 +21,7 @@
#include "test/birdtest.h"
#include "lib/string.h"
#include "lib/event.h"
#include "lib/io-loop.h"
#ifdef HAVE_EXECINFO_H
#include <execinfo.h>
@ -121,8 +122,8 @@ bt_init(int argc, char *argv[])
bt_suite_case_begin = bt_suite_begin = bt_begin;
resource_init();
ev_init_list(&global_event_list);
ev_init_list(&global_event_list, &main_birdloop, "Global event list in unit tests");
ev_init_list(&global_work_list, &main_birdloop, "Global work list in unit tests");
return;
usage:

6
test/bt-utils.c
View File

@ -53,6 +53,8 @@ cf_file_read(byte *dest, uint max_len, int fd)
return l;
}
void resource_sys_init(void);
void
bt_bird_init(void)
{
@ -60,8 +62,9 @@ bt_bird_init(void)
log_init_debug("");
log_switch(bt_verbose != 0, NULL, NULL);
the_bird_lock();
olock_init();
timer_init();
birdloop_init();
rt_init();
io_init();
if_init();
@ -73,6 +76,7 @@ bt_bird_init(void)
void bt_bird_cleanup(void)
{
config = new_config = NULL;
the_bird_unlock();
}
static char *