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/** BEGIN COPYRIGHT BLOCK
* Copyright 2001 Sun Microsystems, Inc.
* Portions copyright 1999, 2001-2003 Netscape Communications Corporation.
* All rights reserved.
* END COPYRIGHT BLOCK **/
/* abandon.c - decode and handle an ldap abandon operation */
/*
* Copyright (c) 1995 Regents of the University of Michigan.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of Michigan at Ann Arbor. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*/
#include <stdio.h>
#include <sys/types.h>
#ifndef _WIN32
#include <sys/socket.h>
#endif
#include "slap.h"
void
do_abandon( Slapi_PBlock *pb )
{
int id, err, suppressed_by_plugin = 0;
long long_id;
Operation *o;
BerElement *ber = pb->pb_op->o_ber;
LDAPDebug( LDAP_DEBUG_TRACE, "do_abandon\n", 0, 0, 0 );
/*
* Parse the abandon request. It looks like this:
*
* AbandonRequest := MessageID
*/
if ( ber_scanf( ber, "i", &long_id ) == LBER_ERROR ) {
LDAPDebug( LDAP_DEBUG_ANY,
"ber_scanf failed (op=Abandon; params=ID)\n",
0, 0 ,0 );
return;
}
id=long_id;
slapi_pblock_set( pb, SLAPI_ABANDON_MSGID, &id );
/*
* in LDAPv3 there can be optional control extensions on
* the end of an LDAPMessage. we need to read them in and
* pass them to the backend.
*/
if ( (err = get_ldapmessage_controls( pb, ber, NULL )) != 0 ) {
LDAPDebug( LDAP_DEBUG_ANY,
"get_ldapmessage_controls failed: %d (%s) (op=Abandon)\n",
err, ldap_err2string( err ), 0);
/* LDAP does not allow any response to an abandon */
return;
}
LDAPDebug( LDAP_DEBUG_ARGS, "do_abandon: id %d\n", id, 0 ,0 );
/*
* find the operation being abandoned and set the o_abandon
* flag. We don't allow the operation to abandon itself.
* It's up to the backend to periodically check this
* flag and abort the operation at a convenient time.
*/
PR_Lock( pb->pb_conn->c_mutex );
for ( o = pb->pb_conn->c_ops; o != NULL; o = o->o_next ) {
if ( o->o_msgid == id && o != pb->pb_op)
break;
}
if ( o != NULL ) {
const Slapi_DN *ts = NULL;
/*
* call the pre-abandon plugins. if they succeed, call
* the backend abandon function. then call the post-abandon
* plugins.
*/
/* ONREPL - plugins should be passed some information about abandoned operation */
/* target spec and abandoned operation type are used to decide which plugins
are applicable for the operation */
ts = operation_get_target_spec (o);
if (ts) {
operation_set_target_spec (pb->pb_op, ts);
} else {
LDAPDebug( LDAP_DEBUG_TRACE, "do_abandon: no target spec of abandoned operation\n", 0,0,0);
}
operation_set_abandoned_op (pb->pb_op, o->o_abandoned_op);
if ( plugin_call_plugins( pb, SLAPI_PLUGIN_PRE_ABANDON_FN )
== 0 ) {
int rc = 0;
if ( o->o_status != SLAPI_OP_STATUS_RESULT_SENT ) {
o->o_status = SLAPI_OP_STATUS_ABANDONED;
} else {
o = NULL; /* nothing was abandoned */
}
slapi_pblock_set( pb, SLAPI_PLUGIN_OPRETURN, &rc );
plugin_call_plugins( pb, SLAPI_PLUGIN_POST_ABANDON_FN );
} else {
suppressed_by_plugin = 1;
}
} else {
LDAPDebug( LDAP_DEBUG_TRACE, "do_abandon: op not found\n", 0, 0,
0 );
}
if ( NULL == o ) {
slapi_log_access( LDAP_DEBUG_STATS, "conn=%d op=%d ABANDON"
" targetop=NOTFOUND msgid=%d\n",
pb->pb_conn->c_connid, pb->pb_op->o_opid, id );
} else if ( suppressed_by_plugin ) {
slapi_log_access( LDAP_DEBUG_STATS, "conn=%d op=%d ABANDON"
" targetop=SUPPRESSED-BY-PLUGIN msgid=%d\n",
pb->pb_conn->c_connid, pb->pb_op->o_opid, id );
} else {
slapi_log_access( LDAP_DEBUG_STATS, "conn=%d op=%d ABANDON"
" targetop=%d msgid=%d nentries=%d etime=%d\n",
pb->pb_conn->c_connid, pb->pb_op->o_opid, o->o_opid, id,
o->o_results.r.r_search.nentries, current_time() - o->o_time );
}
PR_Unlock( pb->pb_conn->c_mutex );
/*
* Wake up the persistent searches, so they
* can notice if they've been abandoned.
*/
ps_wakeup_all();
}
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