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mirror of https://github.com/rkd77/elinks.git synced 2025-02-02 15:09:23 -05:00

[document] get rid of C++ list.

In first place it was implemented in C++ because of memory corruption problems.
This commit is contained in:
Witold Filipczyk 2023-11-27 16:26:09 +01:00
parent e1915cba0c
commit a07f339fd1

View File

@ -89,9 +89,12 @@
#include "util/string.h"
#include "viewer/text/link.h"
#include <list>
struct document_list {
LIST_HEAD_EL(struct document_list);
struct document *document;
};
static std::list<struct document *> format_cache;
static INIT_LIST_OF(struct document_list, format_cache);
const char *script_event_hook_name[] = {
"click",
@ -108,6 +111,35 @@ const char *script_event_hook_name[] = {
NULL
};
static void add_to_document_list(LIST_OF(struct document_list) *list, struct document *document);
static void
remove_document_from_format_cache(struct document *document)
{
struct document_list *item;
foreach (item, format_cache) {
if (item->document == document) {
del_from_list(item);
mem_free(item);
return;
}
}
}
static void
move_document_to_top_of_format_cache(struct document *document)
{
struct document_list *item;
foreach (item, format_cache) {
if (item->document == document) {
move_to_top_of_list(format_cache, item);
return;
}
}
}
#if 0
static void
dump_format_cache(int line)
@ -199,7 +231,7 @@ init_document(struct cache_entry *cached, struct document_options *options)
object_lock(document);
copy_opt(&document->options, options);
format_cache.push_back(document);
add_to_document_list(&format_cache, document);
return document;
}
@ -442,7 +474,7 @@ done_document(struct document *document)
mem_free_if(document->slines2);
mem_free_if(document->search_points);
format_cache.remove(document);
remove_document_from_format_cache(document);
mem_free(document);
}
@ -465,9 +497,7 @@ release_document(struct document *document)
free_list(document->timeouts);
#endif
object_unlock(document);
format_cache.remove(document);
format_cache.push_front(document);
move_document_to_top_of_format_cache(document);
}
int
@ -515,6 +545,7 @@ update_cached_document_options(struct session *ses)
{
struct document *document;
struct active_link_options active_link;
struct document_list *item;
memset(&active_link, 0, sizeof(active_link)); /* Safer. */
active_link.color.foreground = get_opt_color("document.browse.links.active_link.colors.text", ses);
@ -526,20 +557,33 @@ update_cached_document_options(struct session *ses)
active_link.underline = get_opt_bool("document.browse.links.active_link.underline", ses);
active_link.bold = get_opt_bool("document.browse.links.active_link.bold", ses);
for (auto it = format_cache.begin(); it != format_cache.end(); it++) {
document = *it;
foreach (item, format_cache) {
document = item->document;
copy_struct(&document->options.active_link, &active_link);
}
}
static void
add_to_document_list(LIST_OF(struct document_list) *list, struct document *document)
{
struct document_list *item = (struct document_list *)mem_alloc(sizeof(*item));
if (!item) {
return;
}
item->document = document;
add_to_list_end(*list, item);
}
struct document *
get_cached_document(struct cache_entry *cached, struct document_options *options)
{
struct document *ret = NULL;
std::list<struct document *> to_remove;
struct document_list *item, *it;
INIT_LIST_OF(struct document_list, to_remove);
for (auto it = format_cache.begin(); it != format_cache.end(); it++) {
struct document *document = *it;
foreach (it, format_cache) {
struct document *document = it->document;
if (!compare_uri(document->uri, cached->uri, 0)
|| compare_opt(&document->options, options))
@ -549,22 +593,21 @@ get_cached_document(struct cache_entry *cached, struct document_options *options
|| cached->cache_id != document->cache_id
|| !check_document_css_magic(document)) {
if (!is_object_used(document)) {
to_remove.push_back(document);
add_to_document_list(&to_remove, document);
}
continue;
}
ret = document;
break;
}
for (auto it = to_remove.begin(); it != to_remove.end(); it++) {
done_document(*it);
foreach (item, to_remove) {
done_document(item->document);
}
to_remove.clear();
free_list(to_remove);
if (ret) {
/* Reactivate */
format_cache.remove(ret);
format_cache.push_front(ret);
move_document_to_top_of_format_cache(ret);
object_lock(ret);
return ret;
@ -577,12 +620,13 @@ void
shrink_format_cache(int whole)
{
struct document *document;
struct document_list *item, *it;
int format_cache_size = get_opt_int("document.cache.format.size", NULL);
int format_cache_entries = 0;
std::list<struct document *> to_remove;
INIT_LIST_OF(struct document_list, to_remove);
for (auto it = format_cache.begin(); it != format_cache.end(); it++) {
document = *it;
foreach (it, format_cache) {
document = it->document;
if (is_object_used(document)) continue;
@ -593,20 +637,20 @@ shrink_format_cache(int whole)
if (document->cached->cache_id == document->cache_id)
continue;
to_remove.push_back(document);
add_to_document_list(&to_remove, document);
format_cache_entries--;
}
assertm(format_cache_entries >= 0, "format_cache_entries underflow on entry");
if_assert_failed format_cache_entries = 0;
for (auto it = to_remove.begin(); it != to_remove.end(); it++) {
done_document(*it);
foreach (item, to_remove) {
done_document(item->document);
}
to_remove.clear();
free_list(to_remove);
for (auto it = format_cache.rbegin(); it != format_cache.rend(); it++) {
document = *it;
foreachback (it, format_cache) {
document = it->document;
if (is_object_used(document)) continue;
@ -615,13 +659,13 @@ shrink_format_cache(int whole)
if (!whole && format_cache_entries <= format_cache_size)
break;
to_remove.push_back(document);
add_to_document_list(&to_remove, document);
format_cache_entries--;
}
for (auto it = to_remove.begin(); it != to_remove.end(); it++) {
done_document(*it);
foreach (item, to_remove) {
done_document(item->document);
}
to_remove.clear();
free_list(to_remove);
assertm(format_cache_entries >= 0, "format_cache_entries underflow");
if_assert_failed format_cache_entries = 0;
@ -630,17 +674,18 @@ shrink_format_cache(int whole)
int
get_format_cache_size(void)
{
return format_cache.size();
return list_size(&format_cache);
}
int
get_format_cache_used_count(void)
{
struct document_list *it;
struct document *document;
int i = 0;
for (auto it = format_cache.begin(); it != format_cache.end(); it++) {
document = *it;
foreach (it, format_cache) {
document = it->document;
i += is_object_used(document);
}
return i;
@ -649,11 +694,12 @@ get_format_cache_used_count(void)
int
get_format_cache_refresh_count(void)
{
struct document_list *it;
struct document *document;
int i = 0;
for (auto it = format_cache.begin(); it != format_cache.end(); it++) {
document = *it;
foreach (it, format_cache) {
document = it->document;
if (document->refresh
&& document->refresh->timer != TIMER_ID_UNDEF) {