Sweden-Number/dlls/mshtml/task.c

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/*
* Copyright 2006 Jacek Caban for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <stdio.h>
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "ole2.h"
#include "wine/debug.h"
#include "mshtml_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
#define WM_PROCESSTASK 0x8008
#define TIMER_ID 0x3000
typedef struct {
HTMLInnerWindow *window;
DWORD id;
DWORD time;
DWORD interval;
enum timer_type type;
IDispatch *disp;
struct list entry;
} task_timer_t;
static void default_task_destr(task_t *task)
{
heap_free(task);
}
HRESULT push_task(task_t *task, task_proc_t proc, task_proc_t destr, LONG magic)
{
thread_data_t *thread_data;
thread_data = get_thread_data(TRUE);
if(!thread_data) {
if(destr)
destr(task);
else
heap_free(task);
return E_OUTOFMEMORY;
}
task->target_magic = magic;
task->proc = proc;
task->destr = destr ? destr : default_task_destr;
list_add_tail(&thread_data->task_list, &task->entry);
PostMessageW(thread_data->thread_hwnd, WM_PROCESSTASK, 0, 0);
return S_OK;
}
static task_t *pop_task(void)
{
thread_data_t *thread_data;
task_t *task;
thread_data = get_thread_data(FALSE);
if(!thread_data)
return NULL;
if(list_empty(&thread_data->task_list))
return NULL;
task = LIST_ENTRY(thread_data->task_list.next, task_t, entry);
list_remove(&task->entry);
return task;
}
static void release_task_timer(HWND thread_hwnd, task_timer_t *timer)
{
list_remove(&timer->entry);
IDispatch_Release(timer->disp);
heap_free(timer);
}
void remove_target_tasks(LONG target)
{
thread_data_t *thread_data = get_thread_data(FALSE);
struct list *liter, *ltmp;
task_timer_t *timer;
task_t *task;
if(!thread_data)
return;
LIST_FOR_EACH_SAFE(liter, ltmp, &thread_data->timer_list) {
timer = LIST_ENTRY(liter, task_timer_t, entry);
if(timer->window->task_magic == target)
release_task_timer(thread_data->thread_hwnd, timer);
}
if(!list_empty(&thread_data->timer_list)) {
DWORD tc = GetTickCount();
timer = LIST_ENTRY(list_head(&thread_data->timer_list), task_timer_t, entry);
SetTimer(thread_data->thread_hwnd, TIMER_ID, max( (int)(timer->time - tc), 0 ), NULL);
}
LIST_FOR_EACH_SAFE(liter, ltmp, &thread_data->task_list) {
task = LIST_ENTRY(liter, task_t, entry);
if(task->target_magic == target) {
list_remove(&task->entry);
task->destr(task);
}
}
}
LONG get_task_target_magic(void)
{
static LONG magic = 0x10000000;
return InterlockedIncrement(&magic);
}
static BOOL queue_timer(thread_data_t *thread_data, task_timer_t *timer)
{
task_timer_t *iter;
list_remove(&timer->entry);
if(list_empty(&thread_data->timer_list)
|| LIST_ENTRY(list_head(&thread_data->timer_list), task_timer_t, entry)->time > timer->time) {
list_add_head(&thread_data->timer_list, &timer->entry);
return TRUE;
}
LIST_FOR_EACH_ENTRY(iter, &thread_data->timer_list, task_timer_t, entry) {
if(iter->time > timer->time) {
list_add_tail(&iter->entry, &timer->entry);
return FALSE;
}
}
list_add_tail(&thread_data->timer_list, &timer->entry);
return FALSE;
}
HRESULT set_task_timer(HTMLInnerWindow *window, LONG msec, enum timer_type timer_type, IDispatch *disp, LONG *id)
{
thread_data_t *thread_data;
task_timer_t *timer;
DWORD tc = GetTickCount();
static DWORD id_cnt = 0x20000000;
thread_data = get_thread_data(TRUE);
if(!thread_data)
return E_OUTOFMEMORY;
timer = heap_alloc(sizeof(task_timer_t));
if(!timer)
return E_OUTOFMEMORY;
if(msec < 1)
msec = 1;
timer->id = id_cnt++;
timer->window = window;
timer->time = tc + msec;
timer->interval = timer_type == TIMER_INTERVAL ? msec : 0;
timer->type = timer_type;
list_init(&timer->entry);
IDispatch_AddRef(disp);
timer->disp = disp;
if(queue_timer(thread_data, timer))
SetTimer(thread_data->thread_hwnd, TIMER_ID, msec, NULL);
*id = timer->id;
return S_OK;
}
HRESULT clear_task_timer(HTMLInnerWindow *window, DWORD id)
{
thread_data_t *thread_data = get_thread_data(FALSE);
task_timer_t *iter;
if(!thread_data)
return S_OK;
LIST_FOR_EACH_ENTRY(iter, &thread_data->timer_list, task_timer_t, entry) {
if(iter->id == id && iter->window == window) {
release_task_timer(thread_data->thread_hwnd, iter);
return S_OK;
}
}
WARN("timet not found\n");
return S_OK;
}
static const char *debugstr_timer_type(enum timer_type type)
{
switch(type) {
case TIMER_TIMEOUT: return "timeout";
case TIMER_INTERVAL: return "interval";
case TIMER_ANIMATION_FRAME: return "animation-frame";
DEFAULT_UNREACHABLE;
}
}
static void call_timer_disp(IDispatch *disp, enum timer_type timer_type)
{
DISPPARAMS dp = {NULL, NULL, 0, 0};
VARIANT timestamp;
EXCEPINFO ei;
VARIANT res;
HRESULT hres;
V_VT(&res) = VT_EMPTY;
memset(&ei, 0, sizeof(ei));
if(timer_type == TIMER_ANIMATION_FRAME) {
dp.cArgs = 1;
dp.rgvarg = &timestamp;
V_VT(&timestamp) = VT_R8;
V_R8(&timestamp) = get_time_stamp();
}
TRACE("%p %s >>>\n", disp, debugstr_timer_type(timer_type));
hres = IDispatch_Invoke(disp, DISPID_VALUE, &IID_NULL, 0, DISPATCH_METHOD, &dp, &res, &ei, NULL);
if(hres == S_OK)
TRACE("%p %s <<<\n", disp, debugstr_timer_type(timer_type));
else
WARN("%p %s <<< %08x\n", disp, debugstr_timer_type(timer_type), hres);
VariantClear(&res);
}
static LRESULT process_timer(void)
{
thread_data_t *thread_data;
enum timer_type timer_type;
IDispatch *disp;
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DWORD tc;
task_timer_t *timer=NULL, *last_timer;
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TRACE("\n");
thread_data = get_thread_data(FALSE);
assert(thread_data != NULL);
if(list_empty(&thread_data->timer_list)) {
KillTimer(thread_data->thread_hwnd, TIMER_ID);
return 0;
}
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last_timer = LIST_ENTRY(list_tail(&thread_data->timer_list), task_timer_t, entry);
do {
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tc = GetTickCount();
if(timer == last_timer) {
timer = LIST_ENTRY(list_head(&thread_data->timer_list), task_timer_t, entry);
SetTimer(thread_data->thread_hwnd, TIMER_ID, timer->time>tc ? timer->time-tc : 0, NULL);
return 0;
}
timer = LIST_ENTRY(list_head(&thread_data->timer_list), task_timer_t, entry);
if(timer->time > tc) {
SetTimer(thread_data->thread_hwnd, TIMER_ID, timer->time-tc, NULL);
return 0;
}
disp = timer->disp;
IDispatch_AddRef(disp);
timer_type = timer->type;
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if(timer->interval) {
timer->time += timer->interval;
queue_timer(thread_data, timer);
}else {
release_task_timer(thread_data->thread_hwnd, timer);
}
call_timer_disp(disp, timer_type);
IDispatch_Release(disp);
}while(!list_empty(&thread_data->timer_list));
KillTimer(thread_data->thread_hwnd, TIMER_ID);
return 0;
}
static LRESULT WINAPI hidden_proc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch(msg) {
case WM_PROCESSTASK:
while(1) {
task_t *task = pop_task();
if(!task)
break;
task->proc(task);
task->destr(task);
}
return 0;
case WM_TIMER:
return process_timer();
}
if(msg > WM_USER)
FIXME("(%p %d %lx %lx)\n", hwnd, msg, wParam, lParam);
return DefWindowProcW(hwnd, msg, wParam, lParam);
}
static HWND create_thread_hwnd(void)
{
static ATOM hidden_wnd_class = 0;
if(!hidden_wnd_class) {
WNDCLASSEXW wndclass = {
sizeof(WNDCLASSEXW), 0,
hidden_proc,
0, 0, hInst, NULL, NULL, NULL, NULL,
L"Internet Explorer_Hidden",
NULL
};
hidden_wnd_class = RegisterClassExW(&wndclass);
}
return CreateWindowExW(0, L"Internet Explorer_Hidden", NULL, WS_POPUP,
0, 0, 0, 0, NULL, NULL, hInst, NULL);
}
HWND get_thread_hwnd(void)
{
thread_data_t *thread_data;
thread_data = get_thread_data(TRUE);
if(!thread_data)
return NULL;
if(!thread_data->thread_hwnd)
thread_data->thread_hwnd = create_thread_hwnd();
return thread_data->thread_hwnd;
}
thread_data_t *get_thread_data(BOOL create)
{
thread_data_t *thread_data;
if(mshtml_tls == TLS_OUT_OF_INDEXES) {
DWORD tls;
if(!create)
return NULL;
tls = TlsAlloc();
if(tls == TLS_OUT_OF_INDEXES)
return NULL;
tls = InterlockedCompareExchange((LONG*)&mshtml_tls, tls, TLS_OUT_OF_INDEXES);
if(tls != mshtml_tls)
TlsFree(tls);
}
thread_data = TlsGetValue(mshtml_tls);
if(!thread_data && create) {
thread_data = heap_alloc_zero(sizeof(thread_data_t));
if(!thread_data)
return NULL;
TlsSetValue(mshtml_tls, thread_data);
list_init(&thread_data->task_list);
list_init(&thread_data->timer_list);
}
return thread_data;
}
ULONGLONG get_time_stamp(void)
{
FILETIME time;
/* 1601 to 1970 is 369 years plus 89 leap days */
const ULONGLONG time_epoch = (ULONGLONG)(369 * 365 + 89) * 86400 * 1000;
GetSystemTimeAsFileTime(&time);
return (((ULONGLONG)time.dwHighDateTime << 32) + time.dwLowDateTime) / 10000 - time_epoch;
}