/* accept a connection on the socket */
static void *acceptconn(void *ctx, void *arg)
{
nssov_info *ni = arg;
Connection conn = {0};
OperationBuffer opbuf;
Operation *op;
int csock;
if ( slapd_shutdown )
return NULL;
{
struct sockaddr_storage addr;
socklen_t alen;
int j;
/* accept a new connection */
alen=(socklen_t)sizeof(struct sockaddr_storage);
csock=accept(ni->ni_socket,(struct sockaddr *)&addr,&alen);
connection_client_enable(ni->ni_conn);
if (csock<0)
{
if ((errno==EINTR)||(errno==EAGAIN)||(errno==EWOULDBLOCK))
{
Debug( LDAP_DEBUG_TRACE,"nssov: accept() failed (ignored): %s",strerror(errno),0,0);
return;
}
Debug( LDAP_DEBUG_ANY,"nssov: accept() failed: %s",strerror(errno),0,0);
return;
}
/* make sure O_NONBLOCK is not inherited */
if ((j=fcntl(csock,F_GETFL,0))<0)
{
Debug( LDAP_DEBUG_ANY,"nssov: fcntl(F_GETFL) failed: %s",strerror(errno),0,0);
if (close(csock))
Debug( LDAP_DEBUG_ANY,"nssov: problem closing socket: %s",strerror(errno),0,0);
return;
}
if (fcntl(csock,F_SETFL,j&~O_NONBLOCK)<0)
{
Debug( LDAP_DEBUG_ANY,"nssov: fcntl(F_SETFL,~O_NONBLOCK) failed: %s",strerror(errno),0,0);
if (close(csock))
Debug( LDAP_DEBUG_ANY,"nssov: problem closing socket: %s",strerror(errno),0,0);
return;
}
}
connection_fake_init( &conn, &opbuf, ctx );
op=&opbuf.ob_op;
conn.c_ssf = conn.c_transport_ssf = local_ssf;
op->o_bd = ni->ni_db;
op->o_tag = LDAP_REQ_SEARCH;
/* handle the connection */
handleconnection(ni,csock,op);
}
void *
asyncmeta_op_handle_result(void *ctx, void *arg)
{
a_metaconn_t *mc = arg;
int i, j, rc, ntargets;
struct timeval tv = {0};
LDAPMessage *msg;
a_metasingleconn_t *msc;
bm_context_t *bc;
void *oldctx;
ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex );
rc = ++mc->mc_active;
ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex );
if (rc > 1)
return NULL;
ntargets = mc->mc_info->mi_ntargets;
i = ntargets;
oldctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 0); /* get existing memctx */
again:
for (j=0; j<ntargets; j++) {
i++;
if (i >= ntargets) i = 0;
msc = &mc->mc_conns[i];
ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex );
if (!mc->mc_conns[i].msc_ldr ||
META_BACK_CONN_CREATING( &mc->mc_conns[i] ) ||
META_BACK_CONN_INVALID(&mc->mc_conns[i])) {
ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex );
continue;
}
msc->msc_active++;
ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex );
rc = ldap_result( mc->mc_conns[i].msc_ldr, LDAP_RES_ANY, LDAP_MSG_RECEIVED, &tv, &msg );
if (rc < 1) {
if (rc < 0) {
ldap_get_option( mc->mc_conns[i].msc_ldr, LDAP_OPT_ERROR_NUMBER, &rc);
META_BACK_CONN_INVALID_SET(&mc->mc_conns[i]);
asyncmeta_op_read_error(mc, i, rc, ctx);
}
ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex );
msc->msc_active--;
ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex );
continue;
}
rc = ldap_msgtype( msg );
if (rc == LDAP_RES_BIND) {
if ( LogTest( asyncmeta_debug ) ) {
char time_buf[ SLAP_TEXT_BUFLEN ];
asyncmeta_get_timestamp(time_buf);
Debug( asyncmeta_debug, "[%s] asyncmeta_op_handle_result received bind msgid=%d msc: %p\n",
time_buf, ldap_msgid(msg), msc );
}
asyncmeta_handle_bind_result(msg, mc, i, ctx);
mc->mc_info->mi_targets[i]->mt_timeout_ops = 0;
ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex );
msc->msc_result_time = slap_get_time();
msc->msc_active--;
ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex );
if (msg)
ldap_msgfree(msg);
continue;
}
retry_bc:
ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex );
bc = asyncmeta_find_message(ldap_msgid(msg), mc, i);
/* The sender might not be yet done with the context. On error it might also remove it
* so it's best to try and find it again after a wait */
if (bc && bc->bc_active > 0) {
ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex );
ldap_pvt_thread_yield();
goto retry_bc;
}
if (bc) {
bc->bc_active++;
}
msc->msc_result_time = slap_get_time();
msc->msc_active--;
ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex );
if (!bc) {
Debug( asyncmeta_debug,
"asyncmeta_op_handle_result: Unable to find bc for msguid %d, msc: %p\n", ldap_msgid(msg), msc );
ldap_msgfree(msg);
continue;
}
/* set our memctx */
bc->op->o_threadctx = ctx;
bc->op->o_tid = ldap_pvt_thread_pool_tid( ctx );
slap_sl_mem_setctx(ctx, bc->op->o_tmpmemctx);
if (bc->op->o_abandon) {
ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex );
asyncmeta_drop_bc( mc, bc);
if ( bc->op->o_tag == LDAP_REQ_SEARCH ) {
int j;
for (j=0; j<ntargets; j++) {
if (bc->candidates[j].sr_msgid >= 0) {
a_metasingleconn_t *tmp_msc = &mc->mc_conns[j];
tmp_msc->msc_active++;
asyncmeta_back_cancel( mc, bc->op,
bc->candidates[ j ].sr_msgid, j );
tmp_msc->msc_active--;
}
}
}
asyncmeta_clear_bm_context(bc);
ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex );
if (msg)
ldap_msgfree(msg);
continue;
}
switch (rc) {
case LDAP_RES_SEARCH_ENTRY:
case LDAP_RES_SEARCH_REFERENCE:
case LDAP_RES_SEARCH_RESULT:
case LDAP_RES_INTERMEDIATE:
asyncmeta_handle_search_msg(msg, mc, bc, i);
mc->mc_info->mi_targets[i]->mt_timeout_ops = 0;
msg = NULL;
break;
case LDAP_RES_ADD:
case LDAP_RES_DELETE:
case LDAP_RES_MODDN:
case LDAP_RES_COMPARE:
case LDAP_RES_MODIFY:
rc = asyncmeta_handle_common_result(msg, mc, bc, i);
mc->mc_info->mi_targets[i]->mt_timeout_ops = 0;
break;
default:
{
Debug( asyncmeta_debug,
"asyncmeta_op_handle_result: "
"unrecognized response message tag=%d\n",
rc );
}
}
if (msg)
ldap_msgfree(msg);
}
ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex );
rc = --mc->mc_active;
ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex );
if (rc) {
i++;
goto again;
}
slap_sl_mem_setctx(ctx, oldctx);
if (mc->mc_conns) {
ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex );
for (i=0; i<ntargets; i++) {
if (!slapd_shutdown && !META_BACK_CONN_INVALID(msc)
&& mc->mc_conns[i].msc_ldr && mc->mc_conns[i].conn) {
connection_client_enable(mc->mc_conns[i].conn);
}
}
ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex );
}
return NULL;
}
