Initial revision

1 files changed, 187 insertions, 0 deletions

diff --git a/lib/libalpm/trans.c b/lib/libalpm/trans.c
new file mode 100644
index 00000000..1aaca0e4
--- /dev/null
+++ b/lib/libalpm/trans.c
@@ -0,0 +1,187 @@
+/*
+ *  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->packages = 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);
+	FREELISTPKGS(trans->packages);
+
+	free(trans);
+}
+
+int trans_init(pmtrans_t *trans, unsigned char type, unsigned char flags, alpm_trans_cb cb)
+{
+	/* Sanity checks */
+	if(trans == NULL) {
+		PM_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, PM_RET_ERR(PM_ERR_TRANS_NULL, -1));
+	ASSERT(target != NULL, PM_RET_ERR(PM_ERR_WRONG_ARGS, -1));
+
+	if(pm_list_is_strin(target, trans->targets)) {
+		PM_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;
+	}
+	trans->targets = pm_list_add(trans->targets, strdup(target));
+	trans->state = STATE_INITIALIZED;
+
+	return(0);
+}
+
+int trans_prepare(pmtrans_t *trans, PMList **data)
+{
+	*data = NULL;
+
+	/* Sanity checks */
+	ASSERT(trans != NULL, PM_RET_ERR(PM_ERR_WRONG_ARGS, -1));
+
+	ASSERT(trans->packages != 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, PM_RET_ERR(PM_ERR_WRONG_ARGS, -1));
+
+	/* If there's nothing to do, return without complaining */
+	ASSERT(trans->packages != 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: */