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dpavlin |
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/* |
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openisis - an open implementation of the CDS/ISIS database |
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Version 0.8.x (patchlevel see file Version) |
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Copyright (C) 2001-2003 by Erik Grziwotz, erik@openisis.org |
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This library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Lesser General Public |
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License as published by the Free Software Foundation; either |
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version 2.1 of the License, or (at your option) any later version. |
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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Lesser General Public License for more details. |
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You should have received a copy of the GNU Lesser General Public |
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License along with this library; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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see README for more information |
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EOH */ |
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/* |
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$Id: lsv.c,v 1.14 2003/06/11 14:53:26 kripke Exp $ |
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OpenIsis server |
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*/ |
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#include <sys/select.h> |
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#include <sys/time.h> |
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#include <sys/types.h> |
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#include <sys/socket.h> |
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#include <unistd.h> |
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#include <fcntl.h> |
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#include <netinet/in.h> |
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#include <string.h> /* memcpy et al */ |
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#include <signal.h> |
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#include <errno.h> |
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#include "lsv.h" |
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static Con *con[FD_SETSIZE]; /* usually 1024, but up to 1<<16 */ |
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#ifdef LSVTHR |
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static pthread_mutex_t lsv_mutex_init = PTHREAD_MUTEX_INITIALIZER; |
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static pthread_cond_t lsv_cond_init = PTHREAD_COND_INITIALIZER; |
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static pthread_key_t lsv_key_wrk; |
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#else |
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static Wrk *lsv_wrk_single; |
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#endif |
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static int lsv_term; |
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static siginfo_t lsv_sig; |
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static const char * pdg[] = { |
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"---", |
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"NEW", |
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"RED", |
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"EOF" |
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}; |
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static const char * stg[] = { |
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"NEW", |
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"CON", |
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"INP", |
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"SES", |
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"WRK", |
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"RUN", |
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"COM", |
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"DON", |
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"RET" |
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}; |
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static void lsv_sighand ( int sig, siginfo_t *info, void *ucontext ) |
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{ |
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if ( SIGINT == sig || SIGTERM == sig ) |
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lsv_term = !0; |
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if ( info ) |
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lsv_sig = *info; |
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else { /* ??? */ |
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lsv_sig.si_signo = sig; |
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lsv_sig.si_pid = 0; |
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} |
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(void)ucontext; |
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} /* lsv_sighand */ |
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static int lsv_enq ( Que *q, Con *c ) |
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{ |
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c->nxt = 0; |
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q->len++; |
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if ( q->tail ) { |
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q->tail->nxt = c; |
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q->tail = c; |
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return 1; |
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} |
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q->head = q->tail = c; |
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return 0; |
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} /* lsv_enq */ |
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static void lsv_penq ( Srv *srv, Con *c ) |
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{ |
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Pool *work = |
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#ifdef LSVTHR |
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c->grp ? &srv->pool : |
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#endif |
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&srv->main; |
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srv->jobs++; |
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c->stg = LSV_STGWRK; |
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if ( c->ses ) |
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c->ses->cur = c; |
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lsv_enq( &work->que, c ); |
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sMsg( LOG_DEBUG, "enq req %d from %s qlen %d", |
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LIO_FD&c->ios.file, c->nam, work->que.len ); |
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#ifdef LSVTHR |
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if ( work->wait ) { |
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Wrk *w = work->wait; |
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work->wait = w->nxt; |
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w->nxt = 0; |
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srv->plen--; |
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pthread_cond_signal( &w->todo ); |
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sMsg( LOG_DEBUG, "woke %d of %d", w->id, srv->plen ); |
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} |
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#endif |
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} /* lsv_penq */ |
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static Con *lsv_deq ( Que *q ) |
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{ |
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Con *c = q->head; |
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if ( c ) { |
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q->len--; |
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q->head = c->nxt; |
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c->nxt = 0; |
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if ( q->tail == c ) |
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q->tail = 0; |
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} |
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return c; |
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} /* lsv_deq */ |
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Wrk *svCur () |
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{ |
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#ifdef LSVTHR |
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return (Wrk*)pthread_getspecific( lsv_key_wrk ); |
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#else |
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return lsv_wrk_single; |
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#endif |
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} |
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/** |
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in threaded mode, run forever, waiting for jobs. |
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non-threaded, do the jobs that are available and return |
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*/ |
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static void *lsv_wrk ( void *arg ) |
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{ |
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Wrk *self = (Wrk*)arg; |
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Srv *srv = self->srv; |
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Con *job = 0; |
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Pool *work = |
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#ifdef LSVTHR |
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self->id ? &srv->pool : |
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#endif |
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&srv->main; |
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#ifdef LSVTHR |
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sigset_t blk; |
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/* block signals, they should go to the receiver */ |
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sigemptyset( &blk ); |
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sigaddset( &blk, SIGHUP ); |
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sigaddset( &blk, SIGINT ); |
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sigaddset( &blk, SIGTERM ); |
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sigaddset( &blk, SIGPIPE ); |
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pthread_sigmask( SIG_BLOCK, &blk, 0 ); |
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pthread_setspecific( lsv_key_wrk, arg ); |
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if ( self->id ) |
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srv->app( 0, LSV_APPINI ); |
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#else |
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lsv_wrk_single = self; |
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if ( !self->ses ) |
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#endif |
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self->ses = sGet(); /* allocate session for thread */ |
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for (;/*ever*/;) { |
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int ret; |
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/* **************************************** |
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critical section enter |
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*/ |
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#ifdef LSVTHR |
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pthread_mutex_lock( &srv->mut ); |
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#endif |
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if ( job ) { /* from last turn */ |
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sMsg( LOG_DEBUG, "thr %d enq job %s pdg %s", |
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self->id, job->nam, pdg[job->pdg] ); |
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job->stg = LSV_STGRET; |
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lsv_enq( &srv->recv, job ); |
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#ifdef LSVTHR |
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if ( job->pdg ) /* wakeup receiver */ |
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write( srv->pip[1], &job->pdg, 1 ); |
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#endif |
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if ( job->ses->que ) { /* immediatly reschedule queued job */ |
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Con *q = job->ses->que; |
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job->ses->que = q->nxt; |
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sMsg( LOG_VERBOSE, "dequeing con %s for ses '%s'", |
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q->nam, job->ses->name ); |
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lsv_penq( srv, q ); |
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} |
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} |
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self->cur = 0; |
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while ( !(job = lsv_deq( &work->que )) |
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&& !(LSV_SHUTDN & srv->flg) |
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) { |
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#ifndef LSVTHR |
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return self; |
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#else |
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self->nxt = work->wait; |
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work->wait = self; /* pls pls lemme wrk */ |
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srv->plen++; |
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self->waits++; |
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sMsg( LOG_DEBUG, "thr %d waiting", self->id ); |
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/* wait releases the mutex */ |
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pthread_cond_wait( &self->todo, &srv->mut ); |
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#endif |
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} |
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self->cur = job; |
| 229 |
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if ( job ) |
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job->stg = LSV_STGRUN; |
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#ifdef LSVTHR |
| 232 |
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pthread_mutex_unlock( &srv->mut ); |
| 233 |
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#endif |
| 234 |
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/* **************************************** |
| 235 |
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critical section leave |
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*/ |
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/* end of monday morning meeting blah blah -- start working */ |
| 239 |
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if ( ! job || (LSV_SHUTDN & srv->flg) ) |
| 240 |
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break; |
| 241 |
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self->jobs++; |
| 242 |
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if ( job->ses ) |
| 243 |
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sSet( job->ses ); |
| 244 |
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else |
| 245 |
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job->ses = self->ses; |
| 246 |
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job->ses->io[1] = &job->ios; |
| 247 |
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if ( job->ses->res ) |
| 248 |
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CLRREC( job->ses->res ); |
| 249 |
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sMsg( LOG_DEBUG, "thr %d run job %s ses '%s'.%d", |
| 250 |
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self->id, job->nam, job->ses->name, job->ses->accnt ); |
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ret = srv->app( job, LSV_APPRUN ); |
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sMsg( LOG_DEBUG, "thr %d got %d buf %d", |
| 253 |
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self->id, ret, LIO_SAVAIL( &job->ios ) ); |
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| 255 |
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/* |
| 256 |
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lock only in order to create SMP memory barrier. |
| 257 |
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on a single processor system, the byte should be safely readable |
| 258 |
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by receiver without this lock. |
| 259 |
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TOD: check alternatives: |
| 260 |
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since receiver is checking the stage of active connections |
| 261 |
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only in rare cases, it might be more efficient to guard either |
| 262 |
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this set or the processing up to here with a per thread mutex. |
| 263 |
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*/ |
| 264 |
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#ifdef LSVTHR |
| 265 |
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pthread_mutex_lock( &srv->mut ); |
| 266 |
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#endif |
| 267 |
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job->stg = LSV_STGDON; |
| 268 |
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job->ses->cur = 0; |
| 269 |
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#ifdef LSVTHR |
| 270 |
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pthread_mutex_unlock( &srv->mut ); |
| 271 |
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#endif |
| 272 |
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| 273 |
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ret = srv->prt( &job->ios, LIO_SCLOSE ); |
| 274 |
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job->ses->io[1] = 0; |
| 275 |
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sMsg( LOG_DEBUG, "thr %d done job %s", self->id, job->nam ); |
| 276 |
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if ( job->ses != self->ses ) |
| 277 |
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sSet( self->ses ); /* reset session */ |
| 278 |
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} |
| 279 |
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#ifndef LSVTHR |
| 280 |
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if ( self->id ) |
| 281 |
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srv->app( 0, LSV_APPFIN ); |
| 282 |
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#endif |
| 283 |
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return self; |
| 284 |
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} /* lsv_wrk */ |
| 285 |
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| 286 |
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| 287 |
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static void *lsv_rcv ( void *arg ) |
| 288 |
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{ |
| 289 |
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Srv *srv = (Srv*)arg; |
| 290 |
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fd_set fd; |
| 291 |
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int fdlen = 0; |
| 292 |
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int pending = 0; |
| 293 |
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int ret = 0, sel, i; |
| 294 |
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#ifdef LSVTHR |
| 295 |
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int inlock = 0; |
| 296 |
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#endif |
| 297 |
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| 298 |
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FD_ZERO( &fd ); |
| 299 |
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FD_SET( srv->lsn, &fd ); |
| 300 |
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fdlen = srv->lsn+1; |
| 301 |
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#ifdef LSVTHR |
| 302 |
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FD_SET( srv->pip[0], &fd ); |
| 303 |
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if ( fdlen < srv->pip[0]+1 ) |
| 304 |
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fdlen = srv->pip[0]+1; |
| 305 |
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#endif |
| 306 |
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| 307 |
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for (;/*ever*/;) { |
| 308 |
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struct sockaddr_in npeer; /* of new connection */ |
| 309 |
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int nsock = -1; /* new socket */ |
| 310 |
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Con *c; |
| 311 |
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fd_set ready = fd; |
| 312 |
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Tm expire; |
| 313 |
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| 314 |
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/* select on read only; writing is done in workers and |
| 315 |
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exceptions (i.e. telnet OOB data) are not used |
| 316 |
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*/ |
| 317 |
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#ifndef LSVTHR |
| 318 |
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if ( srv->recv.len ) { /* instead of listening on pip */ |
| 319 |
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memset( &ready, 0, sizeof(ready) ); |
| 320 |
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sel = 0; |
| 321 |
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} else |
| 322 |
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#endif |
| 323 |
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if ( 0 > (sel = select( fdlen, &ready, 0, 0, 0 )) ) { |
| 324 |
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if ( EINTR == errno ) { |
| 325 |
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sMsg( LOG_DEBUG, "select woken by signal" ); |
| 326 |
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} else { |
| 327 |
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ret = sMsg( LOG_SYSERR, "select" ); |
| 328 |
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goto done; |
| 329 |
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} |
| 330 |
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} |
| 331 |
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if ( lsv_sig.si_signo ) { |
| 332 |
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sMsg( LOG_DEBUG, "SIG%s (%d) from pid %d", |
| 333 |
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SIGHUP==lsv_sig.si_signo ? "HUP" : |
| 334 |
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SIGINT==lsv_sig.si_signo ? "INT" : |
| 335 |
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SIGTERM==lsv_sig.si_signo ? "TERM" : |
| 336 |
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SIGPIPE==lsv_sig.si_signo ? "PIPE" : "?", |
| 337 |
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lsv_sig.si_signo, lsv_sig.si_pid ); |
| 338 |
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if ( 1 /*SIGHUP==lsv_sig.si_signo*/ ) { |
| 339 |
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for ( i=FD_SETSIZE; i--; ) |
| 340 |
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if ( con[i] ) { |
| 341 |
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c = con[i]; |
| 342 |
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sMsg( LOG_INFO, |
| 343 |
|
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"con %3d peer %s stg %s prt %d app %d ios %d %s (0x%x)", |
| 344 |
|
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i, c->nam, stg[c->stg], c->prt, c->app, |
| 345 |
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c->ios.pos + c->ios.b.done, |
| 346 |
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LIO_SISOPEN(&c->ios) ? "opn" : "clo", c->ios.file ); |
| 347 |
|
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} |
| 348 |
|
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} |
| 349 |
|
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if ( lsv_term ) /* even if it wasn't the last signal delivered */ |
| 350 |
|
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goto done; |
| 351 |
|
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lsv_sig.si_signo = 0; |
| 352 |
|
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/* must NOT access the set after interrupt, |
| 353 |
|
|
probably all fds are set |
| 354 |
|
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*/ |
| 355 |
|
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continue; |
| 356 |
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} |
| 357 |
|
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timeUpd( &srv->tim ); |
| 358 |
|
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timeGtfm( srv->gtm, &srv->tim ); |
| 359 |
|
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expire.millis = srv->tim.millis - srv->sto*LLL(1000); |
| 360 |
|
|
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| 361 |
|
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#ifdef LSVTHR |
| 362 |
|
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pthread_mutex_lock( &srv->mut ); /* back in locked land */ |
| 363 |
|
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inlock = !0; |
| 364 |
|
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#endif |
| 365 |
|
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|
| 366 |
|
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/* -- we're the acceptor */ |
| 367 |
|
|
if ( FD_ISSET( srv->lsn, &ready ) ) { /* new connection */ |
| 368 |
|
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unsigned /*socklen_t is broken*/ alen = sizeof(npeer); |
| 369 |
|
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nsock = accept( srv->lsn, (struct sockaddr*)&npeer, &alen ); |
| 370 |
|
|
if ( 0 > nsock ) { |
| 371 |
|
|
ret = sMsg( LOG_SYSERR, "accept" ); |
| 372 |
|
|
goto done; |
| 373 |
|
|
} |
| 374 |
|
|
if ( FD_SETSIZE <= nsock ) { |
| 375 |
|
|
ret = sMsg( ERR_BADF, |
| 376 |
|
|
"socket %d >= FD_SETSIZE %d", nsock, FD_SETSIZE ); |
| 377 |
|
|
goto done; |
| 378 |
|
|
} |
| 379 |
|
|
if ( sizeof(npeer) != alen ) { |
| 380 |
|
|
ret = sMsg( ERR_INVAL, "bad peer len %d", alen ); |
| 381 |
|
|
goto done; |
| 382 |
|
|
} |
| 383 |
|
|
/* ok */ |
| 384 |
|
|
/* setsockopt |
| 385 |
|
|
SO_SNDTIMEO fixed value on linux |
| 386 |
|
|
SO_OOBINLINE ... hmm, don't care |
| 387 |
|
|
SO_LINGER off |
| 388 |
|
|
*/ |
| 389 |
|
|
/* prepare con */ |
| 390 |
|
|
if ( !(c = con[nsock]) ) { |
| 391 |
|
|
c = con[nsock] = mAlloc( sizeof(*c) ); |
| 392 |
|
|
c->ios.file = nsock; /* preliminary -- further setup below */ |
| 393 |
|
|
} |
| 394 |
|
|
c->pdg = LSV_PDGNEW; |
| 395 |
|
|
switch ( c->stg ) { |
| 396 |
|
|
case LSV_STGCON: /* still in control of receiver */ |
| 397 |
|
|
case LSV_STGINP: |
| 398 |
|
|
sMsg( ERR_IDIOT, "bad recv stage %d on new con", c->stg ); |
| 399 |
|
|
c->stg = LSV_STGNEW; |
| 400 |
|
|
case LSV_STGNEW: /* clean idle socket -- pass to receiver */ |
| 401 |
|
|
lsv_enq( &srv->recv, c ); |
| 402 |
|
|
break; |
| 403 |
|
|
case LSV_STGSES: /* still in control of receiver */ |
| 404 |
|
|
case LSV_STGWRK: |
| 405 |
|
|
sMsg( ERR_IDIOT, "bad worker stage %d on new con", c->stg ); |
| 406 |
|
|
case LSV_STGRUN: /* worker will queue it */ |
| 407 |
|
|
/* hmmm ... should have COM ... */ |
| 408 |
|
|
case LSV_STGCOM: |
| 409 |
|
|
case LSV_STGDON: |
| 410 |
|
|
case LSV_STGRET: /* worker has queued it */ |
| 411 |
|
|
pending++; |
| 412 |
|
|
break; |
| 413 |
|
|
} |
| 414 |
|
|
srv->conn++; |
| 415 |
|
|
FD_CLR( srv->lsn, &ready ); /* skip in fd check */ |
| 416 |
|
|
} /* new connection */ |
| 417 |
|
|
|
| 418 |
|
|
#ifdef LSVTHR |
| 419 |
|
|
if ( FD_ISSET( srv->pip[0], &ready ) ) { /* pending events */ |
| 420 |
|
|
char trash[LSV_NUMWRK]; |
| 421 |
|
|
read( srv->pip[0], trash, sizeof(trash) ); |
| 422 |
|
|
FD_CLR( srv->pip[0], &ready ); |
| 423 |
|
|
sel--; |
| 424 |
|
|
} |
| 425 |
|
|
#endif |
| 426 |
|
|
|
| 427 |
|
|
/* switching roles -- now we're the receiver */ |
| 428 |
|
|
while ( (c = lsv_deq( &srv->recv )) ) { /* care for ready connections */ |
| 429 |
|
|
int sock = LIO_FD & c->ios.file; |
| 430 |
|
|
sMsg( LOG_DEBUG, "deq %d from %s pdg %s", |
| 431 |
|
|
sock, c->nam, pdg[c->pdg] ); |
| 432 |
|
|
if ( c->pdg && c->stg ) |
| 433 |
|
|
pending--; |
| 434 |
|
|
if ( !(LIO_IN & c->ios.file) && (LIO_RDWR & c->ios.file) ) { |
| 435 |
|
|
/* cleanup closed socks */ |
| 436 |
|
|
if ( c != con[sock] ) { |
| 437 |
|
|
ret = sMsg( ERR_IDIOT, |
| 438 |
|
|
"deq bad sock %d (0x%x)", sock, c->ios.file ); |
| 439 |
|
|
goto done; /* PANIC time */ |
| 440 |
|
|
} |
| 441 |
|
|
sMsg( LOG_DEBUG, "clos%s sock %d", |
| 442 |
|
|
(LIO_OUT & c->ios.file) ? "ing" : "ed", sock ); |
| 443 |
|
|
if ( (LIO_OUT & c->ios.file) ) |
| 444 |
|
|
lio_close( &c->ios.file, LIO_INOUT ); |
| 445 |
|
|
c->ios.file &= ~LIO_RDWR; /* clear also, so we're not closing again */ |
| 446 |
|
|
FD_CLR( sock, &fd ); |
| 447 |
|
|
FD_CLR( sock, &ready ); /* probably an EOF to read */ |
| 448 |
|
|
if ( fdlen == sock+1 ) |
| 449 |
|
|
while ( fdlen |
| 450 |
|
|
/* && !FD_ISSET( fdlen-1, &fd ) risk of muting tmp. disabled */ |
| 451 |
|
|
&& (!con[fdlen-1] || !LIO_SISOPEN(&con[fdlen-1]->ios)) |
| 452 |
|
|
) |
| 453 |
|
|
fdlen--; |
| 454 |
|
|
} |
| 455 |
|
|
if ( LSV_PDGNEW == c->pdg ) { /* new connection */ |
| 456 |
|
|
struct sockaddr_in peer; /* of new connection */ |
| 457 |
|
|
if ( nsock == sock ) /* the one accepted just above */ |
| 458 |
|
|
peer = npeer; |
| 459 |
|
|
else { |
| 460 |
|
|
unsigned alen = sizeof(peer); |
| 461 |
|
|
if ( getpeername( sock, (struct sockaddr*)&peer, &alen ) |
| 462 |
|
|
|| sizeof(peer) != alen |
| 463 |
|
|
) { |
| 464 |
|
|
ret = sMsg( LOG_SYSERR, "getpeername alen %d", alen ); |
| 465 |
|
|
goto done; |
| 466 |
|
|
} |
| 467 |
|
|
} |
| 468 |
|
|
c->srv = srv; |
| 469 |
|
|
c->ses = 0; |
| 470 |
|
|
{ |
| 471 |
|
|
unsigned host = (unsigned)ntohl( peer.sin_addr.s_addr ); |
| 472 |
|
|
unsigned short port = (unsigned short)ntohs( peer.sin_port ); |
| 473 |
|
|
char *p = c->nam; |
| 474 |
|
|
c->host = host; |
| 475 |
|
|
memset( c->nam, 0, sizeof(c->nam) ); |
| 476 |
|
|
p += u2a( p, 0xff & (host >> 24) ); *p++ = '.'; |
| 477 |
|
|
p += u2a( p, 0xff & (host >> 16) ); *p++ = '.'; |
| 478 |
|
|
p += u2a( p, 0xff & (host >> 8) ); *p++ = '.'; |
| 479 |
|
|
p += u2a( p, 0xff & (host ) ); *p++ = ':'; |
| 480 |
|
|
p += u2a( p, port ); |
| 481 |
|
|
/* *p++ = '@'; p += u2a( p, sock ); */ |
| 482 |
|
|
} |
| 483 |
|
|
c->con++; /* never mind overflow ... */ |
| 484 |
|
|
sMsg( LOG_INFO, |
| 485 |
|
|
"connect %d on %d from %s", c->con+1, sock, c->nam ); |
| 486 |
|
|
LIO_SINIT( &c->ios, srv->prt, c->nam, |
| 487 |
|
|
sock | LIO_INOUT|LIO_RDWR|LIO_SOCK ); |
| 488 |
|
|
LIO_BINIT( &c->flt ); |
| 489 |
|
|
FD_SET( sock, &fd ); |
| 490 |
|
|
if ( fdlen < sock+1 ) |
| 491 |
|
|
fdlen = sock+1; |
| 492 |
|
|
c->bin = 0; /* do not reset on every request */ |
| 493 |
|
|
} |
| 494 |
|
|
if ( ! (LIO_IN & c->ios.file) ) |
| 495 |
|
|
c->stg = LSV_STGNEW; |
| 496 |
|
|
else { |
| 497 |
|
|
c->stg = LSV_STGCON; |
| 498 |
|
|
if ( ! FD_ISSET( sock, &fd ) ) { |
| 499 |
|
|
sMsg( LOG_DEBUG, "reenabling %s", c->nam ); |
| 500 |
|
|
FD_SET( sock, &fd ); |
| 501 |
|
|
if ( fdlen < sock+1 ) |
| 502 |
|
|
fdlen = sock+1; |
| 503 |
|
|
} |
| 504 |
|
|
} |
| 505 |
|
|
c->grp = c->pdg = c->prt = c->app = 0; |
| 506 |
|
|
/* prepare for new request */ |
| 507 |
|
|
c->ios.pos = 0; |
| 508 |
|
|
c->ios.b.done = c->ios.b.fill = 0; |
| 509 |
|
|
if ( c->req ) |
| 510 |
|
|
CLRREC( c->req ); |
| 511 |
|
|
else { |
| 512 |
|
|
/* this is done in the receiver rather than the acceptor |
| 513 |
|
|
since in multi-receiver model, receiver owns the req |
| 514 |
|
|
*/ |
| 515 |
|
|
c->req = mAlloc( LSV_BUFSIZ ); |
| 516 |
|
|
OPENISIS_INITREC( c->req, LSV_BUFSIZ, 64 ); |
| 517 |
|
|
} |
| 518 |
|
|
if ( !(LSV_CONSES & srv->flg) ) |
| 519 |
|
|
c->ses = 0; |
| 520 |
|
|
} /* prepare connections */ |
| 521 |
|
|
|
| 522 |
|
|
|
| 523 |
|
|
for ( i=fdlen; sel && i--; ) { /* read from the ready */ |
| 524 |
|
|
Field *sid; |
| 525 |
|
|
int got; |
| 526 |
|
|
if ( ! FD_ISSET( i, &ready ) ) |
| 527 |
|
|
continue; |
| 528 |
|
|
sel--; |
| 529 |
|
|
c = con[i]; |
| 530 |
|
|
if ( ! c ) { |
| 531 |
|
|
ret = sMsg( ERR_IDIOT, "ran on empty con %d", i ); |
| 532 |
|
|
goto done; |
| 533 |
|
|
} |
| 534 |
|
|
if ( LSV_STGINP < c->stg ) { |
| 535 |
|
|
sMsg( LOG_DEBUG, "con %d busy stage %d!", i, c->stg ); |
| 536 |
|
|
c->pdg = LSV_PDGRED; |
| 537 |
|
|
pending++; |
| 538 |
|
|
FD_CLR( i, &fd ); /* mute this */ |
| 539 |
|
|
continue; |
| 540 |
|
|
} |
| 541 |
|
|
c->ios.b.done = 0; |
| 542 |
|
|
got = lio_read( &c->ios.file, c->ios.b.c, sizeof(c->ios.b.c) ); |
| 543 |
|
|
if ( 0 >= got ) { |
| 544 |
|
|
if ( -ERR_EOF != got ) |
| 545 |
|
|
goto err; |
| 546 |
|
|
sMsg( LOG_DEBUG, "EOF on 0x%x line %d from %s", |
| 547 |
|
|
c->ios.file, c->req->len, c->nam ); |
| 548 |
|
|
FD_CLR( i, &fd ); |
| 549 |
|
|
if ( ! c->req->len ) /* initial eof */ |
| 550 |
|
|
goto eof; /* close immediatly */ |
| 551 |
|
|
/* lio_close( &c->ios.file, LIO_IN ); */ |
| 552 |
|
|
c->ios.file &= ~LIO_IN; /* don't shut */ |
| 553 |
|
|
c->pdg = LSV_PDGEOF; /* so it will be dequed and closed */ |
| 554 |
|
|
pending++; |
| 555 |
|
|
got = 0; /* tell proto to close ... */ |
| 556 |
|
|
} |
| 557 |
|
|
if ( ! c->req->len ) { /* stage should be CON */ |
| 558 |
|
|
RADDS( c->req, -LSV_PEER, c->nam, 1 ); |
| 559 |
|
|
sMsg( LOG_DEBUG, "req on %d from %s", |
| 560 |
|
|
LIO_FD&c->ios.file, c->nam ); |
| 561 |
|
|
} |
| 562 |
|
|
c->stg = LSV_STGINP; |
| 563 |
|
|
c->ios.b.fill = got; |
| 564 |
|
|
got = srv->prt( &c->ios, LIO_SPUSH ); |
| 565 |
|
|
sMsg( LOG_DEBUG, "got 0x%x from %s", got, c->nam ); |
| 566 |
|
|
if ( ! got && (LIO_IN & c->ios.file) ) /* ok: more next time */ |
| 567 |
|
|
continue; |
| 568 |
|
|
if ( 0 > got ) /* nok */ |
| 569 |
|
|
goto err; |
| 570 |
|
|
got = c->srv->app( c, LSV_APPGOT ); |
| 571 |
|
|
if ( 0 > got ) /* nok */ |
| 572 |
|
|
goto err; |
| 573 |
|
|
if ( !(LSV_CONSES & srv->flg) |
| 574 |
|
|
&& c->req && (sid = rGet( c->req, -LSV_SID, 0 )) |
| 575 |
|
|
) { |
| 576 |
|
|
c->ses = cSesByName( (char*)sid->val, sid->len, &srv->tim, &expire ); |
| 577 |
|
|
if ( ! c->ses ) { /* sad sad sad */ |
| 578 |
|
|
sMsg( LOG_ERROR, "out of sessions" ); |
| 579 |
|
|
goto err; /* drop connection */ |
| 580 |
|
|
} |
| 581 |
|
|
if ( ! c->ses->accnt |
| 582 |
|
|
&& (! c->ses->prop || ! c->ses->prop->len) /* overflow paranoia */ |
| 583 |
|
|
) |
| 584 |
|
|
got = c->srv->app( c, LSV_APPSES ); |
| 585 |
|
|
if ( 0 > got ) /* nok */ |
| 586 |
|
|
goto err; |
| 587 |
|
|
} |
| 588 |
|
|
c->tim = srv->tim; |
| 589 |
|
|
RADDS( c->req, -LSV_TIME, srv->gtm, 1 ); |
| 590 |
|
|
if ( c->ses ) { |
| 591 |
|
|
sMsg( LOG_DEBUG, "req %s for ses '%s' %s", |
| 592 |
|
|
c->nam, c->ses->name, c->ses->cur ? "busy" : "idle" ); |
| 593 |
|
|
c->ses->accnt++; |
| 594 |
|
|
if ( c->ses->cur || c->ses->que ) { /* oh - busy !? */ |
| 595 |
|
|
Con **cpp = &c->ses->que; |
| 596 |
|
|
int l = 0; |
| 597 |
|
|
for ( ; *cpp; cpp = &(*cpp)->nxt ) |
| 598 |
|
|
if ( 4 < ++l ) { |
| 599 |
|
|
sMsg( LOG_WARN, |
| 600 |
|
|
"too many con queing on ses '%s' - dropping %s", |
| 601 |
|
|
c->ses->name, c->nam ); |
| 602 |
|
|
goto err; |
| 603 |
|
|
} |
| 604 |
|
|
sMsg( LOG_VERBOSE, "queing con %s for ses '%s'", |
| 605 |
|
|
c->nam, c->ses->name ); |
| 606 |
|
|
c->nxt = 0; |
| 607 |
|
|
*cpp = c; |
| 608 |
|
|
c->stg = LSV_STGSES; |
| 609 |
|
|
continue; |
| 610 |
|
|
} |
| 611 |
|
|
} |
| 612 |
|
|
/* yo - got it */ |
| 613 |
|
|
lsv_penq( srv, c ); |
| 614 |
|
|
continue; |
| 615 |
|
|
err: |
| 616 |
|
|
sMsg( ERR_BADF, "err 0x%x from %s", got, c->nam ); |
| 617 |
|
|
eof: |
| 618 |
|
|
lio_close( &c->ios.file, LIO_INOUT ); |
| 619 |
|
|
c->stg = LSV_STGNEW; |
| 620 |
|
|
FD_CLR( i, &fd ); |
| 621 |
|
|
} /* read from the ready */ |
| 622 |
|
|
|
| 623 |
|
|
srv->turn++; |
| 624 |
|
|
srv->busy += srv->nwr - srv->plen; |
| 625 |
|
|
#ifdef LSVTHR |
| 626 |
|
|
srv->wlen += srv->pool.que.len; |
| 627 |
|
|
|
| 628 |
|
|
sMsg( LOG_INFO, |
| 629 |
|
|
"\n==== %s\nturn %d: %d jobs for %d idle workers %d pending", |
| 630 |
|
|
srv->gtm, srv->turn, srv->pool.que.len, srv->plen, pending ); |
| 631 |
|
|
for ( i=srv->nwr; i--; ) |
| 632 |
|
|
if ( srv->wrk[i].cur ) |
| 633 |
|
|
sMsg( LOG_INFO, "thr %d serving %d from %s", |
| 634 |
|
|
i, LIO_FD&srv->wrk[i].cur->ios.file, srv->wrk[i].cur->nam ); |
| 635 |
|
|
|
| 636 |
|
|
inlock = 0; |
| 637 |
|
|
pthread_mutex_unlock( &srv->mut ); |
| 638 |
|
|
#else |
| 639 |
|
|
lsv_wrk( srv->wrk ); |
| 640 |
|
|
#endif |
| 641 |
|
|
} /* for(ever) */ |
| 642 |
|
|
done: |
| 643 |
|
|
#ifdef LSVTHR |
| 644 |
|
|
if ( inlock ) |
| 645 |
|
|
pthread_mutex_unlock( &srv->mut ); |
| 646 |
|
|
srv->flg |= LSV_SHUTDN; |
| 647 |
|
|
for ( i=srv->nwr; i--; ) |
| 648 |
|
|
pthread_cond_signal( &srv->wrk[i].todo ); |
| 649 |
|
|
#endif |
| 650 |
|
|
return srv; |
| 651 |
|
|
} /* lsv_rcv */ |
| 652 |
|
|
|
| 653 |
|
|
|
| 654 |
|
|
int svRun ( Srv *srv, const char *addr ) |
| 655 |
|
|
{ |
| 656 |
|
|
static const int yes = !0; |
| 657 |
|
|
struct sigaction siga; |
| 658 |
|
|
struct sockaddr_in sa; /* server address */ |
| 659 |
|
|
int ret = 0, i; |
| 660 |
|
|
|
| 661 |
|
|
/* assume we're the main-thread |
| 662 |
|
|
-- try to make sure we get the controlling session |
| 663 |
|
|
*/ |
| 664 |
|
|
sGet(); |
| 665 |
|
|
|
| 666 |
|
|
/* set defaults */ |
| 667 |
|
|
if ( ! srv->sto ) |
| 668 |
|
|
srv->sto = 30*60; /* 30 minutes session timeout */ |
| 669 |
|
|
#ifndef LSVTHR |
| 670 |
|
|
srv->nwr = 1; |
| 671 |
|
|
#else |
| 672 |
|
|
if ( ! srv->nwr ) |
| 673 |
|
|
srv->nwr = LSV_NUMWRK/2; /* half the max */ |
| 674 |
|
|
else if ( LSV_NUMWRK < srv->nwr ) |
| 675 |
|
|
srv->nwr = LSV_NUMWRK; /* max */ |
| 676 |
|
|
|
| 677 |
|
|
srv->mut = lsv_mutex_init; |
| 678 |
|
|
#endif |
| 679 |
|
|
/* prepare signals */ |
| 680 |
|
|
memset( &siga, 0, sizeof(siga) ); |
| 681 |
|
|
siga.sa_sigaction = lsv_sighand; |
| 682 |
|
|
sigemptyset( &siga.sa_mask ); |
| 683 |
|
|
sigaddset( &siga.sa_mask, SIGHUP ); |
| 684 |
|
|
sigaddset( &siga.sa_mask, SIGINT ); |
| 685 |
|
|
sigaddset( &siga.sa_mask, SIGTERM ); |
| 686 |
|
|
sigaddset( &siga.sa_mask, SIGPIPE ); |
| 687 |
|
|
siga.sa_flags = SA_SIGINFO; |
| 688 |
|
|
sigaction( SIGHUP, &siga, 0 ); |
| 689 |
|
|
sigaction( SIGINT, &siga, 0 ); |
| 690 |
|
|
sigaction( SIGTERM, &siga, 0 ); |
| 691 |
|
|
sigaction( SIGPIPE, &siga, 0 ); |
| 692 |
|
|
|
| 693 |
|
|
/* prepare socket */ |
| 694 |
|
|
srv->lsn = socket( PF_INET, SOCK_STREAM, IPPROTO_TCP/*6*/ ); |
| 695 |
|
|
/* fcntl( srv->lsn, O_NONBLOCK ); not needed */ |
| 696 |
|
|
sa.sin_family = AF_INET; |
| 697 |
|
|
sa.sin_port = htons( addr ? a2i( addr, -1 ) : 8080 ); |
| 698 |
|
|
sa.sin_addr.s_addr = |
| 699 |
|
|
#ifdef LSV_LOCALHOST_ONLY |
| 700 |
|
|
htonl(INADDR_LOOPBACK); |
| 701 |
|
|
#else |
| 702 |
|
|
INADDR_ANY; |
| 703 |
|
|
#endif |
| 704 |
|
|
if ( setsockopt( srv->lsn, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes) ) ) { |
| 705 |
|
|
ret = sMsg( LOG_SYSERR, "setsockopt" ); |
| 706 |
|
|
goto inierr; |
| 707 |
|
|
} |
| 708 |
|
|
if ( bind( srv->lsn, (struct sockaddr*)&sa, sizeof(sa) ) ) { |
| 709 |
|
|
ret = sMsg( LOG_SYSERR, "bind on port %u", htons(sa.sin_port) ); |
| 710 |
|
|
goto inierr; |
| 711 |
|
|
} |
| 712 |
|
|
if ( listen( srv->lsn, 64/*backlog*/ ) ) { |
| 713 |
|
|
ret = sMsg( LOG_SYSERR, "listen" ); |
| 714 |
|
|
goto inierr; |
| 715 |
|
|
} |
| 716 |
|
|
#ifdef LSVTHR |
| 717 |
|
|
/* prepare pending event pipe */ |
| 718 |
|
|
if ( pipe( srv->pip ) ) { |
| 719 |
|
|
ret = sMsg( LOG_SYSERR, "pipe" ); |
| 720 |
|
|
goto inierr; |
| 721 |
|
|
} |
| 722 |
|
|
|
| 723 |
|
|
if ( pthread_key_create( &lsv_key_wrk, 0 ) ) { |
| 724 |
|
|
ret = sMsg( LOG_SYSERR, "key_create" ); |
| 725 |
|
|
goto inierr; |
| 726 |
|
|
} |
| 727 |
|
|
#endif |
| 728 |
|
|
/* setup workers */ |
| 729 |
|
|
memset( srv->wrk, 0, sizeof(srv->wrk) ); |
| 730 |
|
|
for ( i=srv->nwr; i--; ) { |
| 731 |
|
|
srv->wrk[i].id = i; |
| 732 |
|
|
srv->wrk[i].srv = srv; |
| 733 |
|
|
srv->wrk[i].nxt = 0; |
| 734 |
|
|
srv->wrk[i].ses = cSession(0); |
| 735 |
|
|
memcpy( srv->wrk[i].ses->name, "wrk", 3 ); |
| 736 |
|
|
u2a( srv->wrk[i].ses->name+3, i ); |
| 737 |
|
|
#ifdef LSVTHR |
| 738 |
|
|
srv->wrk[i].todo = lsv_cond_init; |
| 739 |
|
|
if ( i ) |
| 740 |
|
|
pthread_create( &srv->wrk[i].thr, 0, lsv_wrk, srv->wrk+i ); |
| 741 |
|
|
#endif |
| 742 |
|
|
} |
| 743 |
|
|
#ifndef LSVTHR |
| 744 |
|
|
lsv_rcv( srv ); |
| 745 |
|
|
#else |
| 746 |
|
|
/* start the server thread */ |
| 747 |
|
|
pthread_create( &srv->rcv, 0, lsv_rcv, srv ); |
| 748 |
|
|
/* run main worker */ |
| 749 |
|
|
srv->wrk[0].thr = pthread_self(); |
| 750 |
|
|
lsv_wrk( srv->wrk ); |
| 751 |
|
|
|
| 752 |
|
|
/* cleanup */ |
| 753 |
|
|
pthread_join( srv->rcv, 0 ); |
| 754 |
|
|
for ( i=srv->nwr; i--; ) |
| 755 |
|
|
pthread_join( srv->wrk[i].thr, 0 ); |
| 756 |
|
|
#endif |
| 757 |
|
|
for ( i=srv->nwr; i--; ) |
| 758 |
|
|
sMsg( LOG_INFO, "worker %d had %d jobs %d waits", |
| 759 |
|
|
i, srv->wrk[i].jobs, srv->wrk[i].waits ); |
| 760 |
|
|
sMsg( LOG_INFO, |
| 761 |
|
|
"server had %d jobs on %d connections %d turns" |
| 762 |
|
|
" avg queue len %.02f workers %.02f", |
| 763 |
|
|
srv->jobs, srv->conn, srv->turn, |
| 764 |
|
|
srv->wlen/srv->turn, srv->busy/srv->turn ); |
| 765 |
|
|
inierr: |
| 766 |
|
|
close( srv->lsn ); |
| 767 |
|
|
return ret; |
| 768 |
|
|
} /* svRun */ |
| 769 |
|
|
|
| 770 |
|
|
|
| 771 |
|
|
/** helper, probably should go to lio. |
| 772 |
|
|
cat l bytes from c to buf b flushing as needed. |
| 773 |
|
|
if ! c, empty buf b. |
| 774 |
|
|
*/ |
| 775 |
|
|
int lio_sout ( Ios *s, Buf *b, const char *c, unsigned l ) |
| 776 |
|
|
{ |
| 777 |
|
|
if ( ! b ) |
| 778 |
|
|
b = &s->b; |
| 779 |
|
|
do { |
| 780 |
|
|
if ( LIO_BUFSIZ/2 < b->fill && b->done ) { /* purge */ |
| 781 |
|
|
if ( b->done < b->fill ) |
| 782 |
|
|
memmove( b->c, b->c + b->done, b->fill - b->done ); |
| 783 |
|
|
s->pos += b->done; |
| 784 |
|
|
b->fill -= b->done; |
| 785 |
|
|
b->done = 0; |
| 786 |
|
|
} |
| 787 |
|
|
if ( c && l && b->fill < LIO_BUFSIZ ) { |
| 788 |
|
|
unsigned cp = LIO_BUFSIZ - b->fill; |
| 789 |
|
|
if ( cp > l ) |
| 790 |
|
|
cp = l; |
| 791 |
|
|
memcpy( b->c + b->fill, c, cp ); |
| 792 |
|
|
b->fill += cp; |
| 793 |
|
|
c += cp; |
| 794 |
|
|
l -= cp; |
| 795 |
|
|
if ( !l ) |
| 796 |
|
|
return 0; |
| 797 |
|
|
} |
| 798 |
|
|
if ( b->fill > b->done ) { |
| 799 |
|
|
int wr = lio_write( &s->file, b->c + b->done, b->fill - b->done ); |
| 800 |
|
|
if ( 0 > wr ) |
| 801 |
|
|
return wr; |
| 802 |
|
|
if ( ! wr ) |
| 803 |
|
|
return -ERR_BUSY; |
| 804 |
|
|
b->done += wr; |
| 805 |
|
|
if ( b->done > b->fill ) { |
| 806 |
|
|
b->done = b->fill = 0; |
| 807 |
|
|
return -ERR_IDIOT; |
| 808 |
|
|
} |
| 809 |
|
|
} |
| 810 |
|
|
if ( b->done >= b->fill ) { |
| 811 |
|
|
s->pos += b->done; |
| 812 |
|
|
b->done = b->fill = 0; |
| 813 |
|
|
} |
| 814 |
|
|
} while ( c ? l : (unsigned)(b->fill > b->done) ); |
| 815 |
|
|
return 0; |
| 816 |
|
|
} /* lio_sout */ |
| 817 |
|
|
|
| 818 |
|
|
|
| 819 |
|
|
|
| 820 |
|
|
#define LF 10 /* LineFeed a.k.a. newline - '\n' isn't really well defined */ |
| 821 |
|
|
#define TAB 9 /* horizontal, that is */ |
| 822 |
|
|
#define VT 11 /* vertical, used as newline replacement */ |
| 823 |
|
|
static const char lf = LF; |
| 824 |
|
|
static const char tab = TAB; |
| 825 |
|
|
static const char vt = VT; |
| 826 |
|
|
|
| 827 |
|
|
/* the plain protocol */ |
| 828 |
|
|
int svPlain ( Ios *s, int op ) |
| 829 |
|
|
{ |
| 830 |
|
|
Field *f; |
| 831 |
|
|
Con *c = (Con*)s; |
| 832 |
|
|
switch ( op ) { |
| 833 |
|
|
case LIO_SPUSH: { |
| 834 |
|
|
int l = s->b.fill - s->b.done; |
| 835 |
|
|
unsigned char *b = s->b.c + s->b.done; |
| 836 |
|
|
unsigned char *end = b+l, *v, *p; |
| 837 |
|
|
if ( ! l ) { /* EOF: done */ |
| 838 |
|
|
if ( ! c->prt ) /* ok */ |
| 839 |
|
|
return 1; |
| 840 |
|
|
/* last field wasn't closed by LF */ |
| 841 |
|
|
return sMsg( ERR_INVAL, "no EOL from %s", c->nam ); |
| 842 |
|
|
} |
| 843 |
|
|
if ( c->prt ) |
| 844 |
|
|
RSPACE( c->req, l, !0 ); |
| 845 |
|
|
/* add text lines */ |
| 846 |
|
|
while ( b<end ) { |
| 847 |
|
|
int conti = 0; |
| 848 |
|
|
switch ( c->prt ) { |
| 849 |
|
|
case 0: /* at beginning of line -- start new field */ |
| 850 |
|
|
if ( LF == *b ) /* empty line */ |
| 851 |
|
|
return 1; |
| 852 |
|
|
if ( TAB != *b || !c->req->len ) |
| 853 |
|
|
RADD( c->req, 0,0,end-b, !0 ); |
| 854 |
|
|
else { /* binary mode continuation line */ |
| 855 |
|
|
conti = 1; |
| 856 |
|
|
if ( ! c->bin ) { |
| 857 |
|
|
sMsg( LOG_INFO, |
| 858 |
|
|
"detected binary mode on con %s", c->nam ); |
| 859 |
|
|
c->bin = 1; |
| 860 |
|
|
} |
| 861 |
|
|
RSPACE( c->req, end-b, !0 ); |
| 862 |
|
|
} |
| 863 |
|
|
if ( ! c->req ) |
| 864 |
|
|
return -ERR_NOMEM; |
| 865 |
|
|
c->prt = 1; |
| 866 |
|
|
case 1: /* add to last field */ |
| 867 |
|
|
f = c->req->field + c->req->len-1; |
| 868 |
|
|
v = (unsigned char*)f->val; |
| 869 |
|
|
p = v + f->len; |
| 870 |
|
|
if ( conti ) { |
| 871 |
|
|
*p++ = LF; |
| 872 |
|
|
b++; |
| 873 |
|
|
} |
| 874 |
|
|
if ( c->bin ) { |
| 875 |
|
|
for ( ; b<end && LF != (*p = *b++); p++ ) |
| 876 |
|
|
; |
| 877 |
|
|
} else |
| 878 |
|
|
for ( ; b<end && LF != (*p = *b++); p++ ) |
| 879 |
|
|
if ( VT == *p ) /* convert VTABs */ |
| 880 |
|
|
*p = LF; /* back to newlines */ |
| 881 |
|
|
c->req->used += (p - v) - f->len; |
| 882 |
|
|
f->len = p - v; |
| 883 |
|
|
if ( LF == b[-1] ) { |
| 884 |
|
|
int ret = a2il( f->val, f->len, &f->tag ); |
| 885 |
|
|
if ( ret ) { |
| 886 |
|
|
if ( ret < f->len && TAB == v[ret] ) |
| 887 |
|
|
ret++; |
| 888 |
|
|
if ( ret < f->len ) |
| 889 |
|
|
memmove( v, v+ret, f->len - ret ); |
| 890 |
|
|
f->len -= ret; |
| 891 |
|
|
} |
| 892 |
|
|
ret = c->srv->app( c, LSV_APPARG ); |
| 893 |
|
|
c->prt = 0; |
| 894 |
|
|
if ( ret ) |
| 895 |
|
|
return ret; |
| 896 |
|
|
} |
| 897 |
|
|
sMsg( LOG_INFO, "prs from %s: [%2d] %3d = '%.*s'", |
| 898 |
|
|
c->nam, c->req->len-1, f->tag, f->len, f->val ); |
| 899 |
|
|
} |
| 900 |
|
|
} |
| 901 |
|
|
return 0; |
| 902 |
|
|
} /* case LIO_SPUSH */ |
| 903 |
|
|
case LIO_SFLUSH: |
| 904 |
|
|
if ( s->b.fill <= s->b.done ) |
| 905 |
|
|
return 0; |
| 906 |
|
|
case LIO_SCLOSE: |
| 907 |
|
|
if ( !(LIO_OUT & s->file) ) |
| 908 |
|
|
return -ERR_INVAL; |
| 909 |
|
|
/* |
| 910 |
|
|
this switch is not protected, since receiver doesn't care |
| 911 |
|
|
*/ |
| 912 |
|
|
if ( c->stg < LSV_STGCOM ) |
| 913 |
|
|
c->stg = LSV_STGCOM; |
| 914 |
|
|
if ( ! s->pos+s->b.done && c->ses->res ) { |
| 915 |
|
|
char num[32]; |
| 916 |
|
|
int n = c->ses->res->len; |
| 917 |
|
|
sMsg( LOG_INFO, "com %d fields to %s", c->ses->res->len, c->nam ); |
| 918 |
|
|
for ( f = c->ses->res->field; n--; f++ ) { |
| 919 |
|
|
const char *v = f->val, *nl; |
| 920 |
|
|
int vl = f->len; |
| 921 |
|
|
int nlen = i2a( num, f->tag ); |
| 922 |
|
|
num[nlen++] = TAB; |
| 923 |
|
|
lio_sout( s, &c->flt, num, nlen ); |
| 924 |
|
|
while ( vl && (nl = memchr(v,'\n',vl)) ) { |
| 925 |
|
|
int ll = 1+(nl-v); |
| 926 |
|
|
if ( c->bin ) { |
| 927 |
|
|
lio_sout( s, &c->flt, v, ll ); |
| 928 |
|
|
lio_sout( s, &c->flt, &tab, 1 ); |
| 929 |
|
|
} else { |
| 930 |
|
|
lio_sout( s, &c->flt, v, ll-1 ); |
| 931 |
|
|
lio_sout( s, &c->flt, &vt, 1 ); |
| 932 |
|
|
} |
| 933 |
|
|
v += ll; |
| 934 |
|
|
vl -= ll; |
| 935 |
|
|
} |
| 936 |
|
|
if ( vl ) |
| 937 |
|
|
lio_sout( s, &c->flt, v, vl ); |
| 938 |
|
|
lio_sout( s, &c->flt, &lf, 1 ); |
| 939 |
|
|
} |
| 940 |
|
|
} |
| 941 |
|
|
if ( s->b.fill ) |
| 942 |
|
|
s->b.done = s->b.fill = 0; |
| 943 |
|
|
/* |
| 944 |
|
|
{ |
| 945 |
|
|
lio_sout( s, &c->flt, 0, 0 ); |
| 946 |
|
|
lio_stdio( s, LIO_SFLUSH ); |
| 947 |
|
|
} |
| 948 |
|
|
*/ |
| 949 |
|
|
if ( LIO_SCLOSE == op ) |
| 950 |
|
|
lio_sout( s, &c->flt, &lf, 1 ); |
| 951 |
|
|
lio_sout( s, &c->flt, 0, 0 ); /* finally flush */ |
| 952 |
|
|
return 0; |
| 953 |
|
|
} |
| 954 |
|
|
return lio_stream( s, op ); /* hmm -- SPURGE ? */ |
| 955 |
|
|
} /* svPlain */ |
| 956 |
|
|
|
| 957 |
|
|
|
| 958 |
|
|
/* the echo application */ |
| 959 |
|
|
int svEcho ( Con *c, int task ) |
| 960 |
|
|
{ |
| 961 |
|
|
#ifdef LSVECHO_DELAY |
| 962 |
|
|
static Tm tm = { LLL(50) }; |
| 963 |
|
|
#endif |
| 964 |
|
|
Field *f; |
| 965 |
|
|
int i; |
| 966 |
|
|
if ( task ) { /* preparing: we don't care */ |
| 967 |
|
|
if ( LSV_APPGOT == task ) |
| 968 |
|
|
c->grp = 1; /* don't require mainthead */ |
| 969 |
|
|
return 0; |
| 970 |
|
|
} |
| 971 |
|
|
/* run it */ |
| 972 |
|
|
sMsg( LOG_INFO, "echo %d: %d fields to %s", |
| 973 |
|
|
svCur()->id, c->req->len, c->nam ); |
| 974 |
|
|
#ifdef LSVECHO_DELAY |
| 975 |
|
|
timeSleep( &tm ); |
| 976 |
|
|
#endif |
| 977 |
|
|
for ( i=c->req->len, f = c->req->field; i--; f++ ) { |
| 978 |
|
|
RADDF( c->ses->res, f, !0 ); |
| 979 |
|
|
/* |
| 980 |
|
|
plain protocol actually does not support plain output ... |
| 981 |
|
|
sMsg( c->ses, 0, "%d = '%.*s'\n", f->tag, f->len, f->val ); |
| 982 |
|
|
*/ |
| 983 |
|
|
} |
| 984 |
|
|
return 0; |
| 985 |
|
|
} /* svEcho */ |
| 986 |
|
|
|
| 987 |
|
|
#if 0 |
| 988 |
|
|
int main ( int argc, const char **argv ) |
| 989 |
|
|
{ |
| 990 |
|
|
Srv echo; |
| 991 |
|
|
|
| 992 |
|
|
memset( &echo, 0, sizeof(echo) ); |
| 993 |
|
|
echo.prt = lsv_plain; |
| 994 |
|
|
echo.app = lsv_echo; |
| 995 |
|
|
cOpen(0); |
| 996 |
|
|
cLog( LOG_DEBUG, 0 ); |
| 997 |
|
|
return svRun( &echo, 1<argc ? argv[1] : 0 ); |
| 998 |
|
|
} |
| 999 |
|
|
#endif |
Parent Directory
| 
Revision Log