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Add timeout support

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We should time out if there aren't any keypresses at the top level menu
within a reasonable timeframe.
This commit is contained in:
Matthew Garrett 2012-10-11 09:44:27 -04:00
parent 66fe4506fb
commit 202b5c3e12
1 changed files with 40 additions and 7 deletions
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47
MokManager.c
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@ -632,15 +632,48 @@ static void free_menu (struct menu_item *items, UINTN count) {
#endif
}
static void run_menu (struct menu_item *items, UINTN count) {
UINTN index, pos = 0;
static void run_menu (struct menu_item *items, UINTN count, UINTN timeout) {
UINTN index, pos = 0, wait = 0;
EFI_INPUT_KEY key;
EFI_STATUS status;
draw_menu (items, count);
if (timeout)
wait = 10000000;
while (1) {
uefi_call_wrapper(ST->ConOut->ClearScreen, 1, ST->ConOut);
draw_menu (items, count);
uefi_call_wrapper(ST->ConOut->SetAttribute, 2,
ST->ConOut,
EFI_WHITE | EFI_BACKGROUND_BLACK);
if (timeout) {
uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3,
ST->ConOut, 0, count + 1);
if (timeout > 1)
Print(L"Booting in %d seconds\n", timeout);
else
Print(L"Booting in %d second\n", timeout);
}
uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut,
0, pos);
status = WaitForSingleEvent(ST->ConIn->WaitForKey, wait);
if (status == EFI_TIMEOUT) {
timeout--;
if (!timeout) {
free_menu(items, count);
return;
}
continue;
}
wait = 0;
timeout = 0;
uefi_call_wrapper(BS->WaitForEvent, 3, 1,
&ST->ConIn->WaitForKey, &index);
uefi_call_wrapper(ST->ConIn->ReadKeyStroke, 2, ST->ConIn,
@ -844,7 +877,7 @@ static INTN directory_callback (void *data, void *data2) {
buffer = NULL;
}
run_menu(dircontent, dircount);
run_menu(dircontent, dircount, 0);
return 0;
}
@ -936,7 +969,7 @@ static INTN filesystem_callback (void *data, void *data2) {
buffersize = 0;
}
run_menu(dircontent, dircount);
run_menu(dircontent, dircount, 0);
return 0;
}
@ -1020,7 +1053,7 @@ static INTN find_fs (void *data, void *data2) {
uefi_call_wrapper(BS->FreePool, 1, filesystem_handles);
run_menu(filesystems, count);
run_menu(filesystems, count, 0);
return 0;
}
@ -1069,7 +1102,7 @@ static EFI_STATUS enter_mok_menu(EFI_HANDLE image_handle, void *MokNew,
menucount++;
run_menu(menu_item, menucount);
run_menu(menu_item, menucount, 10);
return 0;
}