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Replace joliet_dir_info with a pointer, to reduce memory usage.

This commit is contained in:
Vreixo Formoso 2008-01-16 20:16:08 +01:00
parent 5fe04ccfb2
commit cd27776154
2 changed files with 36 additions and 31 deletions
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63
src/joliet.c
View File

@ -63,13 +63,14 @@ void joliet_node_free(JolietNode *node)
}
if (node->type == JOLIET_DIR) {
int i;
for (i = 0; i < node->info.dir.nchildren; i++) {
joliet_node_free(node->info.dir.children[i]);
for (i = 0; i < node->info.dir->nchildren; i++) {
joliet_node_free(node->info.dir->children[i]);
}
free(node->info.dir.children);
//free(node->info.dir);
free(node->info.dir->children);
free(node->info.dir);
}
iso_node_unref(node->node);
free(node->name);
free(node);
}
@ -91,8 +92,14 @@ int create_node(Ecma119Image *t, IsoNode *iso, JolietNode **node)
if (iso->type == LIBISO_DIR) {
IsoDir *dir = (IsoDir*) iso;
joliet->info.dir.children = calloc(sizeof(void*), dir->nchildren);
if (joliet->info.dir.children == NULL) {
joliet->info.dir = calloc(1, sizeof(struct joliet_node));
if (joliet->info.dir == NULL) {
free(joliet);
return ISO_MEM_ERROR;
}
joliet->info.dir->children = calloc(sizeof(void*), dir->nchildren);
if (joliet->info.dir->children == NULL) {
free(joliet->info.dir);
free(joliet);
return ISO_MEM_ERROR;
}
@ -207,8 +214,8 @@ int create_tree(Ecma119Image *t, IsoNode *iso, JolietNode **tree, int pathlen)
break;
} else if (cret == ISO_SUCCESS) {
/* add child to this node */
int nchildren = node->info.dir.nchildren++;
node->info.dir.children[nchildren] = child;
int nchildren = node->info.dir->nchildren++;
node->info.dir->children[nchildren] = child;
child->parent = node;
}
pos = pos->next;
@ -259,10 +266,10 @@ void sort_tree(JolietNode *root)
{
size_t i;
qsort(root->info.dir.children, root->info.dir.nchildren,
qsort(root->info.dir->children, root->info.dir->nchildren,
sizeof(void*), cmp_node);
for (i = 0; i < root->info.dir.nchildren; i++) {
JolietNode *child = root->info.dir.children[i];
for (i = 0; i < root->info.dir->nchildren; i++) {
JolietNode *child = root->info.dir->children[i];
if (child->type == JOLIET_DIR)
sort_tree(child);
}
@ -327,9 +334,9 @@ size_t calc_dir_size(Ecma119Image *t, JolietNode *dir)
/* size of "." and ".." entries */
len = 34 + 34;
for (i = 0; i < dir->info.dir.nchildren; ++i) {
for (i = 0; i < dir->info.dir->nchildren; ++i) {
size_t remaining;
JolietNode *child = dir->info.dir.children[i];
JolietNode *child = dir->info.dir->children[i];
size_t dirent_len = calc_dirent_len(t, child);
remaining = BLOCK_SIZE - (len % BLOCK_SIZE);
if (dirent_len > remaining) {
@ -348,7 +355,7 @@ size_t calc_dir_size(Ecma119Image *t, JolietNode *dir)
len = div_up(len, BLOCK_SIZE) * BLOCK_SIZE;
/* cache the len */
dir->info.dir.len = len;
dir->info.dir->len = len;
return len;
}
@ -358,11 +365,11 @@ void calc_dir_pos(Ecma119Image *t, JolietNode *dir)
size_t i, len;
t->joliet_ndirs++;
dir->info.dir.block = t->curblock;
dir->info.dir->block = t->curblock;
len = calc_dir_size(t, dir);
t->curblock += div_up(len, BLOCK_SIZE);
for (i = 0; i < dir->info.dir.nchildren; i++) {
JolietNode *child = dir->info.dir.children[i];
for (i = 0; i < dir->info.dir->nchildren; i++) {
JolietNode *child = dir->info.dir->children[i];
if (child->type == JOLIET_DIR) {
calc_dir_pos(t, child);
}
@ -383,8 +390,8 @@ uint32_t calc_path_table_size(JolietNode *dir)
size += dir->name ? ucslen(dir->name) * 2 : 2;
/* and recurse */
for (i = 0; i < dir->info.dir.nchildren; i++) {
JolietNode *child = dir->info.dir.children[i];
for (i = 0; i < dir->info.dir->nchildren; i++) {
JolietNode *child = dir->info.dir->children[i];
if (child->type == JOLIET_DIR) {
size += calc_path_table_size(child);
}
@ -460,8 +467,8 @@ void write_one_dir_record(Ecma119Image *t, JolietNode *node, int file_id,
if (node->type == JOLIET_DIR) {
/* use the cached length */
len = node->info.dir.len;
block = node->info.dir.block;
len = node->info.dir->len;
block = node->info.dir->block;
} else if (node->type == JOLIET_FILE) {
len = iso_file_src_get_size(node->info.file);
block = node->info.file->block;
@ -620,8 +627,8 @@ int write_one_dir(Ecma119Image *t, JolietNode *dir)
write_one_dir_record(t, dir, 1, buf, 1);
buf += 34;
for (i = 0; i < dir->info.dir.nchildren; i++) {
JolietNode *child = dir->info.dir.children[i];
for (i = 0; i < dir->info.dir->nchildren; i++) {
JolietNode *child = dir->info.dir->children[i];
/* compute len of directory entry */
fi_len = ucslen(child->name) * 2;
@ -662,8 +669,8 @@ int write_dirs(Ecma119Image *t, JolietNode *root)
}
/* recurse */
for (i = 0; i < root->info.dir.nchildren; i++) {
JolietNode *child = root->info.dir.children[i];
for (i = 0; i < root->info.dir->nchildren; i++) {
JolietNode *child = root->info.dir->children[i];
if (child->type == JOLIET_DIR) {
ret = write_dirs(t, child);
if (ret < 0) {
@ -702,7 +709,7 @@ int write_path_table(Ecma119Image *t, JolietNode **pathlist, int l_type)
rec = (struct ecma119_path_table_record*) buf;
rec->len_di[0] = dir->parent ? (uint8_t) ucslen(dir->name) * 2 : 1;
rec->len_xa[0] = 0;
write_int(rec->block, dir->info.dir.block, 4);
write_int(rec->block, dir->info.dir->block, 4);
write_int(rec->parent, parent + 1, 2);
if (dir->parent) {
memcpy(rec->dir_id, dir->name, rec->len_di[0]);
@ -746,8 +753,8 @@ int write_path_tables(Ecma119Image *t)
for (i = 0; i < t->joliet_ndirs; i++) {
JolietNode *dir = pathlist[i];
for (j = 0; j < dir->info.dir.nchildren; j++) {
JolietNode *child = dir->info.dir.children[j];
for (j = 0; j < dir->info.dir->nchildren; j++) {
JolietNode *child = dir->info.dir->children[j];
if (child->type == JOLIET_DIR) {
pathlist[cur++] = child;
}

4
src/joliet.h
View File

@ -32,7 +32,6 @@ struct joliet_dir_info {
struct joliet_node
{
uint16_t *name; /**< Name in UCS-2BE. */
//size_t dirent_len;
JolietNode *parent;
@ -41,8 +40,7 @@ struct joliet_node
enum joliet_node_type type;
union {
IsoFileSrc *file;
//TODO change with a pointer
struct joliet_dir_info dir;
struct joliet_dir_info *dir;
} info;
};