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efi_loader: implement event groups

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If an event of a group event is signaled all other events of the same
group are signaled too.

Function efi_signal_event is renamed to efi_queue_event.
A new function efi_signal_event is introduced that checks if an event
belongs to a group and than signals all events of the group.
Event group notifciation is implemented for ExitBootServices,
InstallConfigurationTable, and ResetSystem.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinrich Schuchardt
2018-02-18 15:17:52 +01:00
committed by Alexander Graf
parent a3a28f5f0c
commit b095f3c85f
6 changed files with 101 additions and 28 deletions
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6
lib/efi_loader/efi_console.c
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@@ -572,14 +572,14 @@ int efi_console_register(void)
goto out_of_memory;
/* Create console events */
r = efi_create_event(EVT_NOTIFY_WAIT, TPL_CALLBACK,
efi_key_notify, NULL, &efi_con_in.wait_for_key);
r = efi_create_event(EVT_NOTIFY_WAIT, TPL_CALLBACK, efi_key_notify,
NULL, NULL, &efi_con_in.wait_for_key);
if (r != EFI_SUCCESS) {
printf("ERROR: Failed to register WaitForKey event\n");
return r;
}
r = efi_create_event(EVT_TIMER | EVT_NOTIFY_SIGNAL, TPL_CALLBACK,
efi_console_timer_notify, NULL,
efi_console_timer_notify, NULL, NULL,
&console_timer_event);
if (r != EFI_SUCCESS) {
printf("ERROR: Failed to register console event\n");