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[project @ 2006-02-01 17:34:36 by adrianl]

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Use hash table for faster access to event_windows

svn path=/import/netsurf/; revision=2051
This commit is contained in:
Adrian Lees 2006-02-01 17:34:36 +00:00
parent 2e7b32ea5a
commit 158b6e1835
1 changed files with 43 additions and 17 deletions
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60
riscos/wimp_event.c
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@ -23,6 +23,9 @@
#include "netsurf/utils/log.h"
#include "netsurf/utils/utils.h"
#define WIN_HASH_SIZE 32
#define WIN_HASH(w) (((unsigned)(w) >> 5) % WIN_HASH_SIZE)
typedef enum {
EVENT_NUMERIC_FIELD,
EVENT_TEXT_FIELD,
@ -89,8 +92,9 @@ static struct event_window *ro_gui_wimp_event_find_window(wimp_w w);
static struct icon_event *ro_gui_wimp_event_get_event(wimp_w w, wimp_i i,
event_type type);
static void ro_gui_wimp_event_prepare_menu(wimp_w w, struct icon_event *event);
static struct event_window *ro_gui_wimp_event_remove_window(wimp_w w);
static struct event_window *ro_gui_wimp_event_windows;
static struct event_window *ro_gui_wimp_event_windows[WIN_HASH_SIZE];
/**
@ -217,24 +221,12 @@ bool ro_gui_wimp_event_validate(wimp_w w) {
*/
void ro_gui_wimp_event_finalise(wimp_w w) {
struct event_window *window;
struct event_window *link;
struct icon_event *event;
window = ro_gui_wimp_event_find_window(w);
window = ro_gui_wimp_event_remove_window(w);
if (!window)
return;
if (window == ro_gui_wimp_event_windows) {
ro_gui_wimp_event_windows = window->next;
} else {
for (link = ro_gui_wimp_event_windows; link; link = link->next) {
if (link->next == window) {
link->next = window->next;
break;
}
}
}
while (window->first) {
event = window->first;
window->first = event->next;
@ -967,6 +959,7 @@ bool ro_gui_wimp_event_register_menu_selection(wimp_w w,
*/
struct event_window *ro_gui_wimp_event_get_window(wimp_w w) {
struct event_window *window;
int h;
window = ro_gui_wimp_event_find_window(w);
if (window)
@ -975,13 +968,44 @@ struct event_window *ro_gui_wimp_event_get_window(wimp_w w) {
window = calloc(1, sizeof(struct event_window));
if (!window)
return NULL;
h = WIN_HASH(w);
window->w = w;
window->next = ro_gui_wimp_event_windows;
ro_gui_wimp_event_windows = window;
window->next = ro_gui_wimp_event_windows[h];
ro_gui_wimp_event_windows[h] = window;
return window;
}
/**
* Removes the event data associated with a given handle from the hash tables,
* but does not delete it.
*
* \param w the window to be removed
* \return pointer to the event data or NULL if not found
*/
struct event_window *ro_gui_wimp_event_remove_window(wimp_w w) {
struct event_window **prev;
int h = WIN_HASH(w);
/* search hash chain for the window */
prev = &ro_gui_wimp_event_windows[h];
while (*prev) {
struct event_window *window = *prev;
if (window->w == w) {
/* remove from chain */
*prev = window->next;
return window;
}
prev = &window->next;
}
/* not found */
return NULL;
}
/**
* Find the event data associated with a given window handle
*
@ -989,8 +1013,10 @@ struct event_window *ro_gui_wimp_event_get_window(wimp_w w) {
*/
struct event_window *ro_gui_wimp_event_find_window(wimp_w w) {
struct event_window *window;
int h = WIN_HASH(w);
for (window = ro_gui_wimp_event_windows; window; window = window->next) {
/* search hash chain for window */
for (window = ro_gui_wimp_event_windows[h]; window; window = window->next) {
if (window->w == w)
return window;
}