/* * trans.c * * Copyright (c) 2002-2005 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> /* pacman */ #include "error.h" #include "package.h" #include "util.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 *trans_new() { pmtrans_t *trans; if((trans = (pmtrans_t *)malloc(sizeof(pmtrans_t))) == NULL) { return(NULL); } trans->targets = NULL; trans->install_q = NULL; trans->remove_q = NULL; trans->type = 0; trans->flags = 0; trans->cb = NULL; trans->state = STATE_IDLE; return(trans); } void trans_free(pmtrans_t *trans) { if(trans == NULL) { return; } FREELIST(trans->targets); /* ORE - ugly */ if(trans->type == PM_TRANS_TYPE_SYNC) { PMList *i = trans->install_q; while(i) { PMList *j = i->next; sync_free(i->data); i->data = NULL; pm_list_free(i); i = j; } } else { FREELISTPKGS(trans->install_q); FREELISTPKGS(trans->remove_q); } free(trans); } int trans_init(pmtrans_t *trans, unsigned char type, unsigned char flags, alpm_trans_cb cb) { /* Sanity checks */ if(trans == NULL) { RET_ERR(PM_ERR_TRANS_NULL, -1); } /* ORE perform sanity checks on type and flags: for instance, we can't set UPGRADE and FRESHEN at the same time */ trans->type = type; trans->flags = flags; trans->cb = cb; trans->state = STATE_INITIALIZED; return(0); } int 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(pm_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(add_loadtarget(handle->db_local, trans, target) == -1) { /* pm_errno is set by add_loadtarget() */ return(-1); } break; case PM_TRANS_TYPE_REMOVE: if(remove_loadtarget(handle->db_local, trans, target) == -1) { /* pm_errno is set by remove_loadtarget() */ return(-1); } break; case PM_TRANS_TYPE_SYNC: if(sync_addtarget(handle->db_local, handle->dbs_sync, trans, target) == -1) { /* pm_errno is set by add_loadtarget() */ return(-1); } break; } trans->targets = pm_list_add(trans->targets, strdup(target)); return(0); } int trans_prepare(pmtrans_t *trans, PMList **data) { *data = NULL; /* Sanity checks */ ASSERT(trans != NULL, RET_ERR(PM_ERR_WRONG_ARGS, -1)); if(trans->install_q == NULL && trans->remove_q == NULL) { return(0); } switch(trans->type) { case PM_TRANS_TYPE_ADD: case PM_TRANS_TYPE_UPGRADE: if(add_prepare(handle->db_local, trans, data) == -1) { /* pm_errno is set by add_prepare() */ return(-1); } break; case PM_TRANS_TYPE_REMOVE: if(remove_prepare(handle->db_local, trans, data) == -1) { /* pm_errno is set by remove_prepare() */ return(-1); } break; case PM_TRANS_TYPE_SYNC: if(sync_prepare(handle->db_local, trans, data) == -1) { /* pm_errno is set by sync_prepare() */ return(-1); } break; } trans->state = STATE_PREPARED; return(0); } int trans_commit(pmtrans_t *trans) { /* Sanity checks */ ASSERT(trans != NULL, RET_ERR(PM_ERR_WRONG_ARGS, -1)); /* If there's nothing to do, return without complaining */ if(trans->install_q == NULL && trans->remove_q == NULL) { return(0); } switch(trans->type) { case PM_TRANS_TYPE_ADD: case PM_TRANS_TYPE_UPGRADE: if(add_commit(handle->db_local, trans) == -1) { return(-1); } break; case PM_TRANS_TYPE_REMOVE: if(remove_commit(handle->db_local, trans) == -1) { return(-1); } break; case PM_TRANS_TYPE_SYNC: if(sync_commit(handle->db_local, trans) == -1) { return(-1); } break; } trans->state = STATE_COMMITED; return(0); } /* vim: set ts=2 sw=2 noet: */