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CLI: show threads all crash fixed

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When socket dropped before finished, it failed to cleanup.
This commit is contained in:
Maria Matejka 2024-12-12 15:00:26 +01:00
parent 28b0adc15f
commit 6e940c259d
5 changed files with 28 additions and 7 deletions
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10
nest/cli.c
View File

@ -337,12 +337,18 @@ extern cli *cmd_reconfig_stored_cli;
void
cli_free(cli *c)
{
CALL(c->cleanup, c);
bool done = c->cleanup ? c->cleanup(c) : true;
if (c == cmd_reconfig_stored_cli)
cmd_reconfig_stored_cli = NULL;
rp_free(c->pool);
if (done)
rp_free(c->pool);
else
{
sk_close(c->sock);
c->sock = NULL;
}
}
/**

4
nest/cli.h
View File

@ -37,7 +37,9 @@ typedef struct cli {
struct cli_out *tx_buf, *tx_pos, *tx_write;
event *event;
void (*cont)(struct cli *c);
void (*cleanup)(struct cli *c); /* The CLI has closed prematurely */
bool (*cleanup)(struct cli *c); /* The CLI has closed prematurely; if done, return true,
otherwise return false and call rp_free(c->pool) later yourself.
The socket is closed anyway, tho. */
void *rover; /* Private to continuation routine */
struct config *main_config; /* Main config currently in use */
int last_reply;

5
nest/rt-show.c
View File

@ -225,7 +225,7 @@ rt_show_net(struct rt_show_data *d, const struct rt_export_feed *feed)
}
}
static void
static bool
rt_show_cleanup(struct cli *c)
{
struct rt_show_data *d = c->rover;
@ -241,6 +241,9 @@ rt_show_cleanup(struct cli *c)
/* Unreference the config */
OBSREF_CLEAR(d->running_on_config);
/* Everything cleaned up */
return true;
}
static void

3
proto/mrt/mrt.c
View File

@ -760,11 +760,12 @@ mrt_dump_cont(struct cli *c)
return mrt_table_dump_step(c->rover);
}
void
static bool
mrt_dump_cleanup(struct cli *c)
{
mrt_table_dump_free(c->rover);
c->rover = NULL;
return true;
}
void

13
sysdep/unix/io-loop.c
View File

@ -1259,10 +1259,11 @@ bird_thread_show_cli_cont(struct cli *c UNUSED)
/* Explicitly do nothing to prevent CLI from trying to parse another command. */
}
static int
static bool
bird_thread_show_cli_cleanup(struct cli *c UNUSED)
{
return 1; /* Defer the cleanup until the writeout is finished. */
/* Defer the cleanup until the writeout is finished. */
return false;
}
static void
@ -1328,6 +1329,14 @@ cmd_show_threads_done(struct bird_thread_syncer *sync)
SKIP_BACK_DECLARE(struct bird_thread_show_data, tsd, sync, sync);
ASSERT_DIE(birdloop_inside(&main_birdloop));
/* The client lost their patience and dropped the session early. */
if (!tsd->cli->sock)
{
mb_free(tsd);
rp_free(tsd->cli->pool);
return;
}
tsd->cli->cont = NULL;
tsd->cli->cleanup = NULL;