openldap/servers/slapd/abandon.c
Kurt Zeilenga 3e05f28963 Modify connection_closing() to abandon operations and wake blocked writer.
Modify send_result to return if connection state is closing.
Modify do_abandon() to remove abandon'ed operation if pending.
1999-04-23 20:22:18 +00:00

85 lines
1.9 KiB
C

/* 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 "portable.h"
#include <stdio.h>
#include <ac/socket.h>
#include "slap.h"
void
do_abandon(
Connection *conn,
Operation *op
)
{
int id;
Operation *o;
Operation **oo;
Debug( LDAP_DEBUG_TRACE, "do_abandon\n", 0, 0, 0 );
/*
* Parse the abandon request. It looks like this:
*
* AbandonRequest := MessageID
*/
if ( ber_scanf( op->o_ber, "i", &id ) == LBER_ERROR ) {
Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0 ,0 );
return;
}
Debug( LDAP_DEBUG_ARGS, "do_abandon: id %d\n", id, 0 ,0 );
/*
* find the operation being abandoned and set the o_abandon
* flag. It's up to the backend to periodically check this
* flag and abort the operation at a convenient time.
*/
ldap_pvt_thread_mutex_lock( &conn->c_mutex );
for ( o = conn->c_ops; o != NULL; o = o->o_next ) {
if ( o->o_msgid == id ) {
ldap_pvt_thread_mutex_lock( &o->o_abandonmutex );
o->o_abandon = 1;
ldap_pvt_thread_mutex_unlock( &o->o_abandonmutex );
goto found_it;
}
}
for ( oo = &conn->c_pending_ops;
(*oo != NULL) && ((*oo)->o_msgid != id);
oo = &(*oo)->o_next )
{
/* EMPTY */ ;
}
if( *oo != NULL ) {
o = *oo;
*oo = (*oo)->o_next;
slap_op_free( o );
goto found_it;
}
Debug( LDAP_DEBUG_TRACE, "do_abandon: op not found\n", 0, 0, 0 );
found_it:
ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
}