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Remove line cache from memory after 10 minutes of inactivity.

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git-svn-id: http://svn.irssi.org/repos/irssi/trunk@345 dbcabf3a-b0e7-0310-adc4-f8d773084564
This commit is contained in:
Timo Sirainen 2000-06-14 20:12:51 +00:00 committed by cras
parent 6b811b1c2c
commit 84efea6a6a
2 changed files with 41 additions and 13 deletions
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52
src/fe-text/gui-windows.c
View File

@ -34,10 +34,14 @@
#include <regex.h>
/* how often to scan line cache for lines not accessed for a while (ms) */
#define LINE_CACHE_CHECK_TIME (5*60*1000)
/* how long to keep line cache in memory (seconds) */
#define LINE_CACHE_KEEP_TIME (10*60)
#define DEFAULT_INDENT_POS 10
#define DEBUG_TEXTBUFFER
static int linecache_tag;
static int window_create_override;
static GUI_WINDOW_REC *gui_window_init(WINDOW_REC *window, MAIN_WINDOW_REC *parent)
@ -182,8 +186,6 @@ static int gui_window_update_bottom(GUI_WINDOW_REC *gui, int lines)
#define is_window_bottom(gui) \
((gui)->ypos >= -1 && (gui)->ypos <= (gui)->parent->last_line-(gui)->parent->first_line)
/*FIXME: remove ((gui)->startline == (gui)->bottom_startline && \
(gui)->subline >= (gui)->bottom_subline)*/
void gui_window_newline(GUI_WINDOW_REC *gui, int visible)
{
@ -245,13 +247,6 @@ void gui_window_newline(GUI_WINDOW_REC *gui, int visible)
scroll_up(gui->parent->first_line, gui->parent->last_line);
move(gui->parent->last_line, 0); clrtoeol();
}
#ifdef DEBUG_TEXTBUFFER
if (gui->startline != gui->bottom_startline &&
g_list_find(gui->bottom_startline, gui->startline) != NULL) {
g_warning("startline > bottom_startline! SHOULDN'T HAPPEN!");
}
#endif
}
static LINE_CACHE_REC *gui_window_line_cache(GUI_WINDOW_REC *gui, LINE_REC *line)
@ -265,6 +260,7 @@ static LINE_CACHE_REC *gui_window_line_cache(GUI_WINDOW_REC *gui, LINE_REC *line
g_return_val_if_fail(line->text != NULL, NULL);
rec = g_new(LINE_CACHE_REC, 1);
rec->last_access = time(NULL);
xpos = 0; color = 0; indent_pos = DEFAULT_INDENT_POS;
last_space = last_color = 0; last_space_ptr = NULL;
@ -365,8 +361,7 @@ void gui_window_cache_remove(GUI_WINDOW_REC *gui, LINE_REC *line)
cache = g_hash_table_lookup(gui->line_cache, line);
if (cache != NULL) {
g_hash_table_remove(gui->line_cache, line);
g_free_not_null(cache->lines);
g_free(cache);
line_cache_destroy(NULL, cache);
}
}
@ -380,6 +375,8 @@ int gui_window_get_linecount(GUI_WINDOW_REC *gui, LINE_REC *line)
cache = g_hash_table_lookup(gui->line_cache, line);
if (cache == NULL)
cache = gui_window_line_cache(gui, line);
else
cache->last_access = time(NULL);
return cache->count;
}
@ -460,6 +457,8 @@ int gui_window_line_draw(GUI_WINDOW_REC *gui, LINE_REC *line, int ypos, int skip
cache = g_hash_table_lookup(gui->line_cache, line);
if (cache == NULL)
cache = gui_window_line_cache(gui, line);
else
cache->last_access = time(NULL);
if (max < 0) max = cache->count;
@ -793,9 +792,34 @@ void gui_window_resize(WINDOW_REC *window, int ychange, int xchange)
}
}
static int window_remove_linecache(void *key, LINE_CACHE_REC *cache, gpointer nowp)
{
time_t now = (time_t) GPOINTER_TO_INT(nowp);
if (cache->last_access+LINE_CACHE_KEEP_TIME > now)
return FALSE;
line_cache_destroy(NULL, cache);
return TRUE;
}
static int sig_check_linecache(void)
{
GSList *tmp;
for (tmp = windows; tmp != NULL; tmp = tmp->next) {
WINDOW_REC *rec = tmp->data;
g_hash_table_foreach_remove(WINDOW_GUI(rec)->line_cache, (GHRFunc) window_remove_linecache,
GINT_TO_POINTER((int) time(NULL)));
}
return 1;
}
void gui_windows_init(void)
{
window_create_override = -1;
linecache_tag = g_timeout_add(LINE_CACHE_CHECK_TIME, (GSourceFunc) sig_check_linecache, NULL);
signal_add("gui window create override", (SIGNAL_FUNC) sig_window_create_override);
signal_add("window created", (SIGNAL_FUNC) gui_window_created);
@ -808,6 +832,8 @@ void gui_windows_init(void)
void gui_windows_deinit(void)
{
g_source_remove(linecache_tag);
while (windows != NULL)
window_destroy(windows->data);

2
src/fe-text/gui-windows.h
View File

@ -28,6 +28,8 @@ typedef struct {
} LINE_CACHE_SUB_REC;
typedef struct {
time_t last_access;
int count; /* number of real lines */
LINE_CACHE_SUB_REC *lines;
} LINE_CACHE_REC;