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Added iso_image_update_sizes() API.

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This requires increasing IsoStreamIface version, as we need to add a new 
method on it. API/ABI remains compatible with older version.
This commit is contained in:
Vreixo Formoso
2008-09-07 16:32:18 +02:00
parent e79ee64a2f
commit 68419703d7
5 changed files with 135 additions and 24 deletions
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51
libisofs/image.c
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@ -1,8 +1,8 @@
/*
* Copyright (c) 2007 Vreixo Formoso
*
* This file is part of the libisofs project; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2 as
*
* This file is part of the libisofs project; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation. See COPYING file for details.
*/
@ -17,9 +17,9 @@
/**
* Create a new image, empty.
*
*
* The image will be owned by you and should be unref() when no more needed.
*
*
* @param name
* Name of the image. This will be used as volset_id and volume_id.
* @param image
@ -85,7 +85,7 @@ void iso_image_ref(IsoImage *image)
/**
* Decrements the reference couting of the given image.
* If it reaches 0, the image is free, together with its tree nodes (whether
* If it reaches 0, the image is free, together with its tree nodes (whether
* their refcount reach 0 too, of course).
*/
void iso_image_unref(IsoImage *image)
@ -125,7 +125,7 @@ void iso_image_unref(IsoImage *image)
* Attach user defined data to the image. Use this if your application needs
* to store addition info together with the IsoImage. If the image already
* has data attached, the old data will be freed.
*
*
* @param data
* Pointer to application defined data that will be attached to the
* image. You can pass NULL to remove any already attached data.
@ -139,7 +139,7 @@ int iso_image_attach_data(IsoImage *image, void *data, void (*give_up)(void*))
if (image == NULL || (data != NULL && free == NULL)) {
return ISO_NULL_POINTER;
}
if (image->user_data != NULL) {
/* free previously attached data */
if (image->user_data_free) {
@ -148,7 +148,7 @@ int iso_image_attach_data(IsoImage *image, void *data, void (*give_up)(void*))
image->user_data = NULL;
image->user_data_free = NULL;
}
if (data != NULL) {
image->user_data = data;
image->user_data_free = give_up;
@ -275,3 +275,36 @@ int iso_image_get_msg_id(IsoImage *image)
{
return image->id;
}
static
int dir_update_size(IsoImage *image, IsoDir *dir)
{
IsoNode *pos;
pos = dir->children;
while (pos) {
int ret = 1;
if (pos->type == LIBISO_FILE) {
ret = iso_stream_update_size(ISO_FILE(pos)->stream);
} else if (pos->type == LIBISO_DIR) {
/* recurse */
ret = dir_update_size(image, ISO_DIR(pos));
}
if (ret < 0) {
ret = iso_msg_submit(image->id, ret, 0, NULL);
if (ret < 0) {
return ret; /* cancel due error threshold */
}
}
pos = pos->next;
}
return ISO_SUCCESS;
}
int iso_image_update_sizes(IsoImage *image)
{
if (image == NULL) {
return ISO_NULL_POINTER;
}
return dir_update_size(image, image->root);
}