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Handle Windows Ctrl+Break as a graceful SnapRAID interruption

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This commit is contained in:
Andrea Mazzoleni 2026-09-16 19:45:37 +02:00
parent d92d296bcd
commit ce699dd9f8
1 changed files with 33 additions and 6 deletions
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39
os/mingw.c
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@ -291,14 +291,42 @@ static WCHAR exedir[PATH_MAX];
/****************************************************************************/
/* signal */
static void (*windows_handler_term)(int sig);
static BOOL WINAPI windows_ctrl_handler(DWORD ctrl_type)
{
if (ctrl_type != CTRL_BREAK_EVENT)
return FALSE;
/*
* Treat Ctrl+Break exactly like Ctrl+C.
*
* CTRL_BREAK_EVENT can be targeted to a specific process group by
* GenerateConsoleCtrlEvent(), while CTRL_C_EVENT cannot. This allows
* external supervisors to request a graceful SnapRAID interruption.
*/
if (windows_handler_term != 0)
windows_handler_term(SIGINT);
return TRUE;
}
void os_signal_init(void (*handler_term)(int sig), void (*handler_hup)(int sig))
{
{
(void)handler_hup;
(void)handler_hup;
signal(SIGTERM, handler_term);
signal(SIGINT, handler_term);
}
signal(SIGTERM, handler_term);
signal(SIGINT, handler_term);
windows_handler_term = handler_term;
/*
* Register a console control handler to catch CTRL_BREAK_EVENT.
* Unlike CTRL_C_EVENT, Windows does not map Ctrl+Break to SIGINT via signal(),
* and by default it terminates the process abruptly. This handler translates
* Ctrl+Break into a graceful SIGINT interruption.
*/
SetConsoleCtrlHandler(windows_ctrl_handler, TRUE);
}
const char* os_signal_name(int sig)
@ -4354,7 +4382,6 @@ int os_usleep(uint64_t usec)
return 0;
}
void os_privileges_acquire(void)
{
}