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/*
* trans.c
*
* Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <libintl.h>
/* pacman */
#include "error.h"
#include "package.h"
#include "util.h"
#include "log.h"
#include "list.h"
#include "handle.h"
#include "add.h"
#include "remove.h"
#include "sync.h"
#include "alpm.h"
extern pmhandle_t *handle;
pmtrans_t *_alpm_trans_new()
{
pmtrans_t *trans;
if((trans = (pmtrans_t *)malloc(sizeof(pmtrans_t))) == NULL) {
_alpm_log(PM_LOG_ERROR, _("malloc failure: could not allocate %d bytes"), sizeof(pmtrans_t));
return(NULL);
}
trans->targets = NULL;
trans->packages = NULL;
trans->skiplist = NULL;
trans->type = 0;
trans->flags = 0;
trans->cb_event = NULL;
trans->cb_conv = NULL;
trans->state = STATE_IDLE;
return(trans);
}
void _alpm_trans_free(void *data)
{
pmtrans_t *trans = data;
if(trans == NULL) {
return;
}
FREELIST(trans->targets);
if(trans->type == PM_TRANS_TYPE_SYNC) {
PMList *i;
for(i = trans->packages; i; i = i->next) {
FREESYNC(i->data);
}
FREELIST(trans->packages);
} else {
FREELISTPKGS(trans->packages);
}
FREELIST(trans->skiplist);
free(trans);
}
int _alpm_trans_init(pmtrans_t *trans, unsigned char type, unsigned int flags, alpm_trans_cb_event event, alpm_trans_cb_conv conv)
{
/* Sanity checks */
ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
trans->type = type;
trans->flags = flags;
trans->cb_event = event;
trans->cb_conv = conv;
trans->state = STATE_INITIALIZED;
return(0);
}
int _alpm_trans_sysupgrade(pmtrans_t *trans)
{
/* Sanity checks */
ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
return(_alpm_sync_sysupgrade(trans, handle->db_local, handle->dbs_sync));
}
int _alpm_trans_addtarget(pmtrans_t *trans, char *target)
{
/* Sanity checks */
ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
ASSERT(target != NULL, RET_ERR(PM_ERR_WRONG_ARGS, -1));
if(_alpm_list_is_strin(target, trans->targets)) {
RET_ERR(PM_ERR_TRANS_DUP_TARGET, -1);
}
switch(trans->type) {
case PM_TRANS_TYPE_ADD:
case PM_TRANS_TYPE_UPGRADE:
if(_alpm_add_loadtarget(trans, handle->db_local, target) == -1) {
/* pm_errno is set by _alpm_add_loadtarget() */
return(-1);
}
break;
case PM_TRANS_TYPE_REMOVE:
if(_alpm_remove_loadtarget(trans, handle->db_local, target) == -1) {
/* pm_errno is set by remove_loadtarget() */
return(-1);
}
break;
case PM_TRANS_TYPE_SYNC:
if(_alpm_sync_addtarget(trans, handle->db_local, handle->dbs_sync, target) == -1) {
/* pm_errno is set by sync_loadtarget() */
return(-1);
}
break;
}
trans->targets = _alpm_list_add(trans->targets, strdup(target));
return(0);
}
int _alpm_trans_prepare(pmtrans_t *trans, PMList **data)
{
*data = NULL;
/* Sanity checks */
ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
/* If there's nothing to do, return without complaining */
if(trans->packages == NULL) {
return(0);
}
switch(trans->type) {
case PM_TRANS_TYPE_ADD:
case PM_TRANS_TYPE_UPGRADE:
if(_alpm_add_prepare(trans, handle->db_local, data) == -1) {
/* pm_errno is set by _alpm_add_prepare() */
return(-1);
}
break;
case PM_TRANS_TYPE_REMOVE:
if(_alpm_remove_prepare(trans, handle->db_local, data) == -1) {
/* pm_errno is set by _alpm_remove_prepare() */
return(-1);
}
break;
case PM_TRANS_TYPE_SYNC:
if(_alpm_sync_prepare(trans, handle->db_local, handle->dbs_sync, data) == -1) {
/* pm_errno is set by _alpm_sync_prepare() */
return(-1);
}
break;
}
trans->state = STATE_PREPARED;
return(0);
}
int _alpm_trans_commit(pmtrans_t *trans, PMList **data)
{
/* Sanity checks */
ASSERT(trans != NULL, RET_ERR(PM_ERR_TRANS_NULL, -1));
/* If there's nothing to do, return without complaining */
if(trans->packages == NULL) {
return(0);
}
trans->state = STATE_COMMITTING;
switch(trans->type) {
case PM_TRANS_TYPE_ADD:
case PM_TRANS_TYPE_UPGRADE:
if(_alpm_add_commit(trans, handle->db_local) == -1) {
/* pm_errno is set by _alpm_add_prepare() */
return(-1);
}
break;
case PM_TRANS_TYPE_REMOVE:
if(_alpm_remove_commit(trans, handle->db_local) == -1) {
/* pm_errno is set by _alpm_remove_prepare() */
return(-1);
}
break;
case PM_TRANS_TYPE_SYNC:
if(_alpm_sync_commit(trans, handle->db_local, data) == -1) {
/* pm_errno is set by _alpm_sync_commit() */
return(-1);
}
break;
}
trans->state = STATE_COMMITTED;
return(0);
}
/* vim: set ts=2 sw=2 noet: */
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