8  * Copyright (C) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
118     epoch_offset = time(NULL) - tv.tv_sec;  in logmsg()
126             (int)now->tm_hour, (int)now->tm_min, (int)now->tm_sec,  in logmsg()
176     logmsg("Error initialising winsock -- aborting");  in win32_init()
184     logmsg("No suitable winsock.dll found -- aborting");  in win32_init()
221  *   -1 = system call error, or invalid timeout value
239     return -1;  in wait_ms()
257     if(r != -1)  in wait_ms()
262     pending_ms = timeout_ms - (int)timediff(tvnow(), initial_tv);  in wait_ms()
265   } while(r == -1);  in wait_ms()
268     r = -1;  in wait_ms()
285    * - https://cygwin.com/git/?p=newlib-cygwin.git;a=commit; ↵  in write_pidfile()
287    * - https://cygwin.com/git/?p=newlib-cygwin.git;a=commit; ↵  in write_pidfile()
361     return (char)('A' + in - 'a');  in raw_toupper()
428     max--;  in strncasecompare()
471   ** could be the system start-up time, the Epoch, or something else,  in tvnow()
484   ** run-time. When this occurs simply fallback to other time source.  in tvnow()
529   timediff_t diff = newer.tv_sec-older.tv_sec;  in timediff()
534   return (long)(newer.tv_sec-older.tv_sec)*1000+  in timediff()
535     (long)(newer.tv_usec-older.tv_usec)/1000;  in timediff()
554 #ifdef SIGINT
568 static HANDLE thread_main_window = NULL;
580 HANDLE exit_event = NULL;
606  * SIGINT, SIGTERM and SIGBREAK on CTRL events and trigger signal handler.
609  * SIGINT is not supported for any Win32 application. When a CTRL+C
611  * to specifically handle that interrupt. This can cause a single-thread
619  * https://docs.microsoft.com/de-de/cpp/c-runtime-library/reference/signal
626 #ifdef SIGINT  in ctrl_event_handler()
627     case CTRL_C_EVENT: signum = SIGINT; break;  in ctrl_event_handler()
638     logmsg("ctrl_event_handler: %d -> %d", dwCtrlType, signum);  in ctrl_event_handler()
648  * to receive and handle the WM_CLOSE message as SIGTERM signal.
662       logmsg("main_window_proc: %d -> %d", uMsg, signum);  in main_window_proc()
682     return (DWORD)-1;  in main_window_loop()
694     return (DWORD)-1;  in main_window_loop()
699     if(ret == -1) {  in main_window_loop()
701       return (DWORD)-1;  in main_window_loop()
778 #ifdef SIGINT  in install_signal_handlers()
779   /* handle SIGINT signal with our exit_signal_handler */  in install_signal_handlers()
780   old_sigint_handler = set_signal(SIGINT, exit_signal_handler, TRUE);  in install_signal_handlers()
782     logmsg("cannot install SIGINT handler: %s", strerror(errno));  in install_signal_handlers()
785   /* handle SIGTERM signal with our exit_signal_handler */  in install_signal_handlers()
791   /* handle SIGBREAK signal with our exit_signal_handler */  in install_signal_handlers()
826 #ifdef SIGINT  in restore_signal_handlers()
828     (void) set_signal(SIGINT, old_sigint_handler, FALSE);  in restore_signal_handlers()