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implemented primitive idle client detector in htts

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hyung-hwan
2020-08-02 16:07:42 +00:00
parent e77391da1d
commit c5598970d7
4 changed files with 79 additions and 24 deletions
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57
mio/lib/http-svr.c
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@ -74,7 +74,8 @@ static int init_client (mio_svc_htts_cli_t* cli, mio_dev_sck_t* sck)
mio_htrd_setrecbs (cli->htrd, &client_htrd_recbs);
MIO_DEBUG3 (sck->mio, "HTTS(%p) - initialized client %p socket %p\n", cli->htts, cli, sck);
mio_gettime (sck->mio, &cli->last_active);
MIO_DEBUG3 (sck->mio, "HTTS(%p) - initialized client %p socket %p\n", cli->htts, cli, sck);
return 0;
oops:
@ -152,6 +153,7 @@ static int listener_on_read (mio_dev_sck_t* sck, const void* buf, mio_iolen_t le
goto oops;
}
mio_gettime (mio, &cli->last_active);
if ((x = mio_htrd_feed(cli->htrd, buf, len, &rem)) <= -1)
{
MIO_DEBUG3 (mio, "HTTS(%p) - feed error onto client htrd %p(%d)\n", cli->htts, sck, (int)sck->hnd);
@ -275,6 +277,42 @@ printf ("listener socket disconnect..................sck %p %d\n", sck, sck->hnd
}
/* ------------------------------------------------------------------------ */
#define MAX_CLIENT_IDLE 10
static void halt_idle_clients (mio_t* mio, const mio_ntime_t* now, mio_tmrjob_t* job)
{
/* TODO: this idle client detector is far away from being accurate.
* enhance htrd to specify timeout on feed() and utilize it...
* and remove this timer job */
mio_svc_htts_t* htts = (mio_svc_htts_t*)job->ctx;
mio_svc_htts_cli_t* cli;
mio_ntime_t t;
static mio_ntime_t max_client_idle = { MAX_CLIENT_IDLE, 0 };
for (cli = MIO_SVC_HTTS_CLIL_FIRST_CLI(&htts->cli); !MIO_SVC_HTTS_CLIL_IS_NIL_CLI(&htts->cli, cli); cli = cli->cli_next)
{
if (!cli->rsrc)
{
mio_ntime_t t;
MIO_SUB_NTIME(&t, now, &cli->last_active);
if (MIO_CMP_NTIME(&t, &max_client_idle) >= 0)
{
MIO_DEBUG3 (mio, "HTTS(%p) - Halting idle client socket %p(client=%p)\n", htts, cli->sck, cli);
mio_dev_sck_halt (cli->sck);
}
}
}
MIO_INIT_NTIME (&t, MAX_CLIENT_IDLE, 0);
MIO_ADD_NTIME (&t, &t, now);
if (mio_schedtmrjobat(mio, &t, halt_idle_clients, &htts->idle_tmridx, htts) <= -1)
{
MIO_INFO1 (mio, "HTTS(%p) - unable to reschedule idle client detector. continuting\n", htts);
}
}
/* ------------------------------------------------------------------------ */
@ -294,6 +332,7 @@ mio_svc_htts_t* mio_svc_htts_start (mio_t* mio, mio_dev_sck_bind_t* sck_bind, mi
htts->mio = mio;
htts->svc_stop = mio_svc_htts_stop;
htts->proc_req = proc_req;
htts->idle_tmridx = MIO_TMRIDX_INVALID;
MIO_MEMSET (&info, 0, MIO_SIZEOF(info));
switch (mio_skad_family(&sck_bind->localaddr))
@ -343,10 +382,23 @@ mio_svc_htts_t* mio_svc_htts_start (mio_t* mio, mio_dev_sck_bind_t* sck_bind, mi
MIO_PACKAGE_NAME, (int)MIO_PACKAGE_VERSION_MAJOR, (int)MIO_PACKAGE_VERSION_MINOR, (int)MIO_PACKAGE_VERSION_PATCH);
htts->server_name = htts->server_name_buf;
MIO_SVCL_APPEND_SVC (&mio->actsvc, (mio_svc_t*)htts);
MIO_SVC_HTTS_CLIL_INIT (&htts->cli);
MIO_DEBUG3 (mio, "HTTS - STARTED SERVICE %p - LISTENER SOCKET %p(%d)\n", htts, htts->lsck, (int)htts->lsck->hnd);
{
mio_ntime_t t;
MIO_INIT_NTIME (&t, MAX_CLIENT_IDLE, 0);
if (mio_schedtmrjobafter(mio, &t, halt_idle_clients, &htts->idle_tmridx, htts) <= -1)
{
MIO_INFO1 (mio, "HTTS(%p) - unable to schedule idle client detector. continuting\n", htts);
/* don't care about failure */
}
}
return htts;
oops:
@ -376,6 +428,9 @@ void mio_svc_htts_stop (mio_svc_htts_t* htts)
MIO_SVCL_UNLINK_SVC (htts);
if (htts->server_name && htts->server_name != htts->server_name_buf) mio_freemem (mio, htts->server_name);
if (htts->idle_tmridx != MIO_TMRIDX_INVALID) mio_deltmrjob (mio, htts->idle_tmridx);
mio_freemem (mio, htts);
}