/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
- * Copyright 1998-2007 The OpenLDAP Foundation.
+ * Copyright 1998-2008 The OpenLDAP Foundation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
static Connection* connection_get( ber_socket_t s );
-#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
-
typedef struct conn_readinfo {
Operation *op;
ldap_pvt_thread_start_t *func;
} conn_readinfo;
static int connection_input( Connection *c, conn_readinfo *cri );
-#else
-static int connection_input( Connection *c );
-#endif
static void connection_close( Connection *c );
static int connection_op_activate( Operation *op );
-#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
static void connection_op_queue( Operation *op );
-#endif
static int connection_resched( Connection *conn );
static void connection_abandon( Connection *conn );
static void connection_destroy( Connection *c );
if(s == AC_SOCKET_INVALID) return NULL;
-#ifndef HAVE_WINSOCK
assert( s < dtblsize );
c = &connections[s];
-#else
- c = NULL;
- {
- ldap_pvt_thread_mutex_lock( &connections_mutex );
- for(i=0; i<dtblsize; i++) {
- if( connections[i].c_struct_state == SLAP_C_PENDING )
- continue;
-
- if( connections[i].c_struct_state == SLAP_C_UNINITIALIZED ) {
- assert( connections[i].c_conn_state == SLAP_C_INVALID );
- assert( connections[i].c_sb == 0 );
- break;
- }
-
- if( connections[i].c_struct_state == SLAP_C_UNUSED ) {
- assert( connections[i].c_conn_state == SLAP_C_INVALID );
- assert( connections[i].c_sd == AC_SOCKET_INVALID );
- continue;
- }
-
- /* state can actually change from used -> unused by resched,
- * so don't assert details here.
- */
-
- if( connections[i].c_sd == s ) {
- c = &connections[i];
- break;
- }
- }
- ldap_pvt_thread_mutex_unlock( &connections_mutex );
- }
-#endif
-
if( c != NULL ) {
ldap_pvt_thread_mutex_lock( &c->c_mutex );
assert( c->c_struct_state != SLAP_C_UNINITIALIZED );
-#ifdef HAVE_WINSOCK
- /* Avoid race condition after releasing
- * connections_mutex
- */
- if ( c->c_sd != s ) {
- ldap_pvt_thread_mutex_unlock( &c->c_mutex );
- return NULL;
- }
-#endif
if( c->c_struct_state != SLAP_C_USED ) {
/* connection must have been closed due to resched */
unsigned long id;
Connection *c;
int doinit = 0;
+ ber_socket_t sfd = SLAP_FD2SOCK(s);
assert( connections != NULL );
}
assert( s >= 0 );
-#ifndef HAVE_WINSOCK
assert( s < dtblsize );
c = &connections[s];
if( c->c_struct_state == SLAP_C_UNINITIALIZED ) {
} else {
assert( c->c_struct_state == SLAP_C_UNUSED );
}
-#else
- {
- ber_socket_t i;
- c = NULL;
-
- ldap_pvt_thread_mutex_lock( &connections_mutex );
- for( i=0; i < dtblsize; i++) {
- if ( connections[i].c_struct_state == SLAP_C_PENDING )
- continue;
-
- if( connections[i].c_struct_state == SLAP_C_UNINITIALIZED ) {
- assert( connections[i].c_sb == 0 );
- c = &connections[i];
- c->c_struct_state = SLAP_C_PENDING;
- doinit = 1;
- break;
- }
-
- if( connections[i].c_struct_state == SLAP_C_UNUSED ) {
- c = &connections[i];
- c->c_struct_state = SLAP_C_PENDING;
- break;
- }
-
- if( connections[i].c_conn_state == SLAP_C_CLIENT ) continue;
-
- assert( connections[i].c_struct_state == SLAP_C_USED );
- assert( connections[i].c_conn_state != SLAP_C_INVALID );
- }
- ldap_pvt_thread_mutex_unlock( &connections_mutex );
-
- if( c == NULL ) {
- Debug( LDAP_DEBUG_ANY,
- "connection_init(%d): connection table full "
- "(%d/%d)\n", s, i, dtblsize);
- return NULL;
- }
- }
-#endif
if( doinit ) {
c->c_send_ldap_result = slap_send_ldap_result;
if ( flags & CONN_IS_CLIENT ) {
c->c_connid = 0;
+ ldap_pvt_thread_mutex_lock( &connections_mutex );
c->c_conn_state = SLAP_C_CLIENT;
c->c_struct_state = SLAP_C_USED;
+ ldap_pvt_thread_mutex_unlock( &connections_mutex );
c->c_close_reason = "?"; /* should never be needed */
- ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_SET_FD, &s );
+ ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_SET_FD, &sfd );
ldap_pvt_thread_mutex_unlock( &c->c_mutex );
return c;
LBER_SBIOD_LEVEL_PROVIDER, (void*)"udp_" );
#endif
ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_udp,
- LBER_SBIOD_LEVEL_PROVIDER, (void *)&s );
+ LBER_SBIOD_LEVEL_PROVIDER, (void *)&sfd );
ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_readahead,
LBER_SBIOD_LEVEL_PROVIDER, NULL );
} else
LBER_SBIOD_LEVEL_PROVIDER, (void*)"ipc_" );
#endif
ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_fd,
- LBER_SBIOD_LEVEL_PROVIDER, (void *)&s );
+ LBER_SBIOD_LEVEL_PROVIDER, (void *)&sfd );
#ifdef LDAP_PF_LOCAL_SENDMSG
if ( !BER_BVISEMPTY( peerbv ))
ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_UNGET_BUF, peerbv );
LBER_SBIOD_LEVEL_PROVIDER, (void*)"tcp_" );
#endif
ber_sockbuf_add_io( c->c_sb, &ber_sockbuf_io_tcp,
- LBER_SBIOD_LEVEL_PROVIDER, (void *)&s );
+ LBER_SBIOD_LEVEL_PROVIDER, (void *)&sfd );
}
#ifdef LDAP_DEBUG
id = c->c_connid = conn_nextid++;
ldap_pvt_thread_mutex_unlock( &conn_nextid_mutex );
+ ldap_pvt_thread_mutex_lock( &connections_mutex );
c->c_conn_state = SLAP_C_INACTIVE;
c->c_struct_state = SLAP_C_USED;
+ ldap_pvt_thread_mutex_unlock( &connections_mutex );
c->c_close_reason = "?"; /* should never be needed */
c->c_ssf = c->c_transport_ssf = ssf;
unsigned long connid;
const char *close_reason;
Sockbuf *sb;
+ ber_socket_t sd;
assert( connections != NULL );
assert( c != NULL );
}
#endif
+ sd = c->c_sd;
+ c->c_sd = AC_SOCKET_INVALID;
c->c_conn_state = SLAP_C_INVALID;
c->c_struct_state = SLAP_C_UNUSED;
c->c_close_reason = "?"; /* should never be needed */
/* c must be fully reset by this point; when we call slapd_remove
* it may get immediately reused by a new connection.
*/
- if ( c->c_sd != AC_SOCKET_INVALID ) {
- slapd_remove( c->c_sd, sb, 1, 0, 0 );
+ if ( sd != AC_SOCKET_INVALID ) {
+ slapd_remove( sd, sb, 1, 0, 0 );
if ( close_reason == NULL ) {
Statslog( LDAP_DEBUG_STATS, "conn=%lu fd=%ld closed\n",
- connid, (long) c->c_sd, 0, 0, 0 );
+ connid, (long) sd, 0, 0, 0 );
} else {
Statslog( LDAP_DEBUG_STATS, "conn=%lu fd=%ld closed (%s)\n",
- connid, (long) c->c_sd, close_reason, 0, 0 );
+ connid, (long) sd, close_reason, 0, 0 );
}
- c->c_sd = AC_SOCKET_INVALID;
}
}
for(; *index < dtblsize; (*index)++) {
int c_struct;
if( connections[*index].c_struct_state == SLAP_C_UNINITIALIZED ) {
+ /* FIXME: accessing c_conn_state without locking c_mutex */
assert( connections[*index].c_conn_state == SLAP_C_INVALID );
-#ifdef HAVE_WINSOCK
- break;
-#else
continue;
-#endif
}
if( connections[*index].c_struct_state == SLAP_C_USED ) {
- assert( connections[*index].c_conn_state != SLAP_C_INVALID );
c = &connections[(*index)++];
if ( ldap_pvt_thread_mutex_trylock( &c->c_mutex )) {
/* avoid deadlock */
continue;
}
}
+ assert( c->c_conn_state != SLAP_C_INVALID );
break;
}
if ( c_struct == SLAP_C_PENDING )
continue;
assert( c_struct == SLAP_C_UNUSED );
+ /* FIXME: accessing c_conn_state without locking c_mutex */
assert( connections[*index].c_conn_state == SLAP_C_INVALID );
}
/* FIXME: returns 0 in case of failure */
#define INCR_OP_INITIATED(index) \
do { \
- ldap_pvt_thread_mutex_lock( &slap_counters.sc_ops_mutex ); \
- ldap_pvt_mp_add_ulong(slap_counters.sc_ops_initiated_[(index)], 1); \
- ldap_pvt_thread_mutex_unlock( &slap_counters.sc_ops_mutex ); \
+ ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex ); \
+ ldap_pvt_mp_add_ulong(op->o_counters->sc_ops_initiated_[(index)], 1); \
+ ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex ); \
} while (0)
#define INCR_OP_COMPLETED(index) \
do { \
- ldap_pvt_thread_mutex_lock( &slap_counters.sc_ops_mutex ); \
- ldap_pvt_mp_add_ulong(slap_counters.sc_ops_completed, 1); \
- ldap_pvt_mp_add_ulong(slap_counters.sc_ops_completed_[(index)], 1); \
- ldap_pvt_thread_mutex_unlock( &slap_counters.sc_ops_mutex ); \
+ ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex ); \
+ ldap_pvt_mp_add_ulong(op->o_counters->sc_ops_completed, 1); \
+ ldap_pvt_mp_add_ulong(op->o_counters->sc_ops_completed_[(index)], 1); \
+ ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex ); \
} while (0)
#else /* !SLAPD_MONITOR */
#define INCR_OP_INITIATED(index) do { } while (0)
#define INCR_OP_COMPLETED(index) \
do { \
- ldap_pvt_thread_mutex_lock( &slap_counters.sc_ops_mutex ); \
- ldap_pvt_mp_add_ulong(slap_counters.sc_ops_completed, 1); \
- ldap_pvt_thread_mutex_unlock( &slap_counters.sc_ops_mutex ); \
+ ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex ); \
+ ldap_pvt_mp_add_ulong(op->o_counters->sc_ops_completed, 1); \
+ ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex ); \
} while (0)
#endif /* !SLAPD_MONITOR */
NULL
};
+/* Counters are per-thread, not per-connection.
+ */
+static void
+conn_counter_destroy( void *key, void *data )
+{
+ slap_counters_t **prev, *sc;
+
+ ldap_pvt_thread_mutex_lock( &slap_counters.sc_mutex );
+ for ( prev = &slap_counters.sc_next, sc = slap_counters.sc_next; sc;
+ prev = &sc->sc_next, sc = sc->sc_next ) {
+ if ( sc == data ) {
+ int i;
+
+ *prev = sc->sc_next;
+ /* Copy data to main counter */
+ ldap_pvt_mp_add( slap_counters.sc_bytes, sc->sc_bytes );
+ ldap_pvt_mp_add( slap_counters.sc_pdu, sc->sc_pdu );
+ ldap_pvt_mp_add( slap_counters.sc_entries, sc->sc_entries );
+ ldap_pvt_mp_add( slap_counters.sc_refs, sc->sc_refs );
+ ldap_pvt_mp_add( slap_counters.sc_ops_initiated, sc->sc_ops_initiated );
+ ldap_pvt_mp_add( slap_counters.sc_ops_completed, sc->sc_ops_completed );
+#ifdef SLAPD_MONITOR
+ for ( i = 0; i < SLAP_OP_LAST; i++ ) {
+ ldap_pvt_mp_add( slap_counters.sc_ops_initiated_[ i ], sc->sc_ops_initiated_[ i ] );
+ ldap_pvt_mp_add( slap_counters.sc_ops_initiated_[ i ], sc->sc_ops_completed_[ i ] );
+ }
+#endif /* SLAPD_MONITOR */
+ slap_counters_destroy( sc );
+ ber_memfree_x( data, NULL );
+ break;
+ }
+ }
+ ldap_pvt_thread_mutex_unlock( &slap_counters.sc_mutex );
+}
+
+static void
+conn_counter_init( Operation *op, void *ctx )
+{
+ slap_counters_t *sc;
+ void *vsc = NULL;
+
+ if ( ldap_pvt_thread_pool_getkey(
+ ctx, (void *)conn_counter_init, &vsc, NULL ) || !vsc ) {
+ vsc = ch_malloc( sizeof( slap_counters_t ));
+ sc = vsc;
+ slap_counters_init( sc );
+ ldap_pvt_thread_pool_setkey( ctx, (void*)conn_counter_init, vsc,
+ conn_counter_destroy, NULL, NULL );
+
+ ldap_pvt_thread_mutex_lock( &slap_counters.sc_mutex );
+ sc->sc_next = slap_counters.sc_next;
+ slap_counters.sc_next = sc;
+ ldap_pvt_thread_mutex_unlock( &slap_counters.sc_mutex );
+ }
+ op->o_counters = vsc;
+}
+
static void *
connection_operation( void *ctx, void *arg_v )
{
void *memctx_null = NULL;
ber_len_t memsiz;
- ldap_pvt_thread_mutex_lock( &slap_counters.sc_ops_mutex );
+ conn_counter_init( op, ctx );
+ ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
/* FIXME: returns 0 in case of failure */
- ldap_pvt_mp_add_ulong(slap_counters.sc_ops_initiated, 1);
- ldap_pvt_thread_mutex_unlock( &slap_counters.sc_ops_mutex );
+ ldap_pvt_mp_add_ulong(op->o_counters->sc_ops_initiated, 1);
+ ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
op->o_threadctx = ctx;
op->o_tid = ldap_pvt_thread_pool_tid( ctx );
static const Listener dummy_list = { BER_BVC(""), BER_BVC("") };
-int connection_client_setup(
+Connection *connection_client_setup(
ber_socket_t s,
ldap_pvt_thread_start_t *func,
void *arg )
{
Connection *c;
+ ber_socket_t sfd = SLAP_SOCKNEW( s );
- c = connection_init( s, (Listener *)&dummy_list, "", "",
+ c = connection_init( sfd, (Listener *)&dummy_list, "", "",
CONN_IS_CLIENT, 0, NULL
LDAP_PF_LOCAL_SENDMSG_ARG(NULL));
- if ( !c ) return -1;
+ if ( c ) {
+ c->c_clientfunc = func;
+ c->c_clientarg = arg;
- c->c_clientfunc = func;
- c->c_clientarg = arg;
-
- slapd_add_internal( s, 0 );
- slapd_set_read( s, 1 );
- return 0;
+ slapd_add_internal( sfd, 0 );
+ }
+ return c;
}
void connection_client_enable(
- ber_socket_t s )
+ Connection *c )
{
- slapd_set_read( s, 1 );
+ slapd_set_read( c->c_sd, 1 );
}
void connection_client_stop(
- ber_socket_t s )
+ Connection *c )
{
- Connection *c;
Sockbuf *sb;
+ ber_socket_t s = c->c_sd;
/* get (locked) connection */
c = connection_get( s );
c->c_listener = NULL;
c->c_conn_state = SLAP_C_INVALID;
c->c_struct_state = SLAP_C_UNUSED;
+ c->c_sd = AC_SOCKET_INVALID;
c->c_close_reason = "?"; /* should never be needed */
sb = c->c_sb;
c->c_sb = ber_sockbuf_alloc( );
connection_return( c );
}
-#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
-
static int connection_read( ber_socket_t s, conn_readinfo *cri );
static void* connection_read_thread( void* ctx, void* argv )
{
int rc ;
- conn_readinfo cri = { NULL, NULL, NULL, 0 };
+ conn_readinfo cri = { NULL, NULL, NULL, NULL, 0 };
ber_socket_t s = (long)argv;
/*
return rc;
}
-#endif
-#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
static int
connection_read( ber_socket_t s, conn_readinfo *cri )
-#else
-int connection_read(ber_socket_t s)
-#endif
{
int rc = 0;
Connection *c;
}
if ( c->c_conn_state == SLAP_C_CLIENT ) {
-#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
cri->func = c->c_clientfunc;
cri->arg = c->c_clientarg;
/* read should already be cleared */
-#else
- slapd_clr_read( s, 0 );
- ldap_pvt_thread_pool_submit( &connection_pool,
- c->c_clientfunc, c->c_clientarg );
-#endif
connection_return( c );
return 0;
}
/* if success and data is ready, fall thru to data input loop */
if( !ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_DATA_READY, NULL ) )
{
-#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
slapd_set_read( s, 1 );
-#endif
-
connection_return( c );
return 0;
}
if ( c->c_sasl_layers ) {
/* If previous layer is not removed yet, give up for now */
if ( !c->c_sasl_sockctx ) {
-#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
slapd_set_read( s, 1 );
-#endif
-
connection_return( c );
return 0;
}
do {
/* How do we do this without getting into a busy loop ? */
-#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
rc = connection_input( c, cri );
-#else
- rc = connection_input( c );
-#endif
}
#ifdef DATA_READY_LOOP
while( !rc && ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_DATA_READY, NULL ));
return 0;
}
-#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
if ( ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_NEEDS_WRITE, NULL ) ) {
slapd_set_write( s, 0 );
}
slapd_set_read( s, 1 );
-#else
- if ( ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_NEEDS_READ, NULL ) ) {
- slapd_set_read( s, 1 );
- }
-
- if ( ber_sockbuf_ctrl( c->c_sb, LBER_SB_OPT_NEEDS_WRITE, NULL ) ) {
- slapd_set_write( s, 1 );
- }
-#endif
-
connection_return( c );
return 0;
}
static int
-#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
connection_input( Connection *conn , conn_readinfo *cri )
-#else
-connection_input( Connection *conn )
-#endif
{
Operation *op;
ber_tag_t tag;
connection_abandon( conn );
}
-#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
ctx = cri->ctx;
-#else
- ctx = NULL;
-#endif
op = slap_op_alloc( ber, msgid, tag, conn->c_n_ops_received++, ctx );
op->o_conn = conn;
} else {
conn->c_n_ops_executing++;
-#ifdef SLAP_LIGHTWEIGHT_DISPATCHER
/*
* The first op will be processed in the same thread context,
* as long as there is only one op total.
}
connection_op_activate( op );
}
-#else
- connection_op_activate( op );
-#endif
}
#ifdef NO_THREADS
{
Operation *op;
+ if( conn->c_writewaiter )
+ return 0;
+
if( conn->c_conn_state == SLAP_C_CLOSING ) {
Debug( LDAP_DEBUG_TRACE, "connection_resched: "
"attempting closing conn=%lu sd=%d\n",
return 0;
}
- if( conn->c_conn_state != SLAP_C_ACTIVE || conn->c_writewaiter ) {
+ if( conn->c_conn_state != SLAP_C_ACTIVE ) {
/* other states need different handling */
return 0;
}
connection_fake_init2( conn, opbuf, ctx, 1 );
}
+void
+operation_fake_init(
+ Connection *conn,
+ Operation *op,
+ void *ctx,
+ int newmem )
+{
+ /* set memory context */
+ op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx,
+ newmem );
+ op->o_tmpmfuncs = &slap_sl_mfuncs;
+ op->o_threadctx = ctx;
+ op->o_tid = ldap_pvt_thread_pool_tid( ctx );
+
+ op->o_counters = &slap_counters;
+ op->o_conn = conn;
+ op->o_connid = op->o_conn->c_connid;
+ connection_init_log_prefix( op );
+}
+
+
void
connection_fake_init2(
Connection *conn,
op->o_hdr = &opbuf->ob_hdr;
op->o_controls = opbuf->ob_controls;
- /* set memory context */
- op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx,
- newmem );
- op->o_tmpmfuncs = &slap_sl_mfuncs;
- op->o_threadctx = ctx;
- op->o_tid = ldap_pvt_thread_pool_tid( ctx );
-
- op->o_conn = conn;
- op->o_connid = op->o_conn->c_connid;
- connection_init_log_prefix( op );
+ operation_fake_init( conn, op, ctx, newmem );
#ifdef LDAP_SLAPI
if ( slapi_plugins_used ) {
void *ebx = NULL;
/* Use thread keys to make sure these eventually get cleaned up */
- if ( ldap_pvt_thread_pool_getkey( ctx, connection_fake_init, &ebx,
- NULL )) {
+ if ( ldap_pvt_thread_pool_getkey( ctx, (void *)connection_fake_init,
+ &ebx, NULL )) {
eb = ch_malloc( sizeof( *eb ));
slapi_int_create_object_extensions( SLAPI_X_EXT_CONNECTION, conn );
slapi_int_create_object_extensions( SLAPI_X_EXT_OPERATION, op );
eb->eb_conn = conn->c_extensions;
eb->eb_op = op->o_hdr->oh_extensions;
- ldap_pvt_thread_pool_setkey( ctx, connection_fake_init, eb,
- connection_fake_destroy );
+ ldap_pvt_thread_pool_setkey( ctx, (void *)connection_fake_init,
+ eb, connection_fake_destroy, NULL, NULL );
} else {
eb = ebx;
conn->c_extensions = eb->eb_conn;
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