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/*
* Copyright (c) 1994, University of Kansas, All Rights Reserved
*/
#include <HTUtils.h>
#include <LYexit.h>
#ifndef VMS
#include <LYGlobalDefs.h>
#include <LYUtils.h>
#include <LYSignal.h>
#include <LYClean.h>
#include <LYMainLoop.h>
#ifdef SYSLOG_REQUESTED_URLS
#include <syslog.h>
#endif /* SYSLOG_REQUESTED_URLS */
#endif /* !VMS */
/*
* Flag for outofmem macro. - FM
*/
PUBLIC BOOL LYOutOfMemory = FALSE;
/*
* Stack of functions to call upon exit.
*/
PRIVATE void (*callstack[ATEXITSIZE]) NOPARAMS;
PRIVATE int topOfStack = 0;
/*
* Purpose: Registers termination function.
* Arguments: function The function to register.
* Return Value: int 0 registered
* !0 no more space to register
* Remarks/Portability/Dependencies/Restrictions:
* Revision History:
* 06-15-94 created Lynx 2-3-1 Garrett Arch Blythe
*/
#ifdef __STDC__
PUBLIC int LYatexit(void (*function)(void))
#else /* Not ANSI, ugh! */
PUBLIC int LYatexit(function)
void (*function)();
#endif /* __STDC__ */
{
/*
* Check for available space.
*/
if (topOfStack == ATEXITSIZE) {
CTRACE(tfp, "(LY)atexit: Too many functions, ignoring one!\n");
return(-1);
}
/*
* Register the function.
*/
callstack[topOfStack] = function;
topOfStack++;
return(0);
}
/*
* Purpose: Call the functions registered with LYatexit
* Arguments: void
* Return Value: void
* Remarks/Portability/Dependencies/Restrictions:
* Revision History:
* 06-15-94 created Lynx 2-3-1 Garrett Arch Blythe
*/
PRIVATE void LYCompleteExit NOPARAMS
{
/*
* Just loop through registered functions.
* This is reentrant if more exits occur in the registered functions.
*/
while (--topOfStack >= 0) {
callstack[topOfStack]();
}
}
/*
* Purpose: Terminates program.
* Arguments: status Exit code.
* Return Value: void
* Remarks/Portability/Dependencies/Restrictions:
* Function calls stdlib.h exit
* Revision History:
* 06-15-94 created Lynx 2-3-1 Garrett Arch Blythe
*/
PUBLIC void LYexit ARGS1(
int, status)
{
#ifndef VMS /* On VMS, the VMSexit() handler does these. - FM */
#ifdef _WINDOWS
extern CRITICAL_SECTION critSec_DNS; /* 1998/09/03 (Thu) 22:01:56 */
extern CRITICAL_SECTION critSec_READ; /* 1998/09/03 (Thu) 22:01:56 */
DeleteCriticalSection(&critSec_DNS);
DeleteCriticalSection(&critSec_READ);
WSACleanup();
#endif
if (LYOutOfMemory == TRUE) {
/*
* Ignore further interrupts. - FM
*/
#ifndef NOSIGHUP
(void) signal(SIGHUP, SIG_IGN);
#endif /* NOSIGHUP */
(void) signal (SIGTERM, SIG_IGN);
(void) signal (SIGINT, SIG_IGN);
#ifndef __linux__
#ifndef DOSPATH
(void) signal(SIGBUS, SIG_IGN);
#endif /* DOSPATH */
#endif /* !__linux__ */
(void) signal(SIGSEGV, SIG_IGN);
(void) signal(SIGILL, SIG_IGN);
/*
* Flush all messages. - FM
*/
fflush(stderr);
fflush(stdout);
/*
* Deal with curses, if on, and clean up. - FM
*/
if (LYCursesON) {
sleep(AlertSecs);
}
cleanup_sig(0);
#ifndef __linux__
#ifndef DOSPATH
signal(SIGBUS, SIG_DFL);
#endif /* DOSPATH */
#endif /* !__linux__ */
signal(SIGSEGV, SIG_DFL);
signal(SIGILL, SIG_DFL);
}
#endif /* !VMS */
/*
* Do functions registered with LYatexit. - GAB
*/
LYCompleteExit();
#ifndef VMS
#ifdef SYSLOG_REQUESTED_URLS
syslog(LOG_INFO, "Session over");
closelog();
#endif /* SYSLOG_REQUESTED_URLS */
#endif /* !VMS */
#ifdef exit
/* Make sure we use stdlib exit and not LYexit. - GAB
*/
#undef exit
#endif /* exit */
#ifndef VMS /* On VMS, the VMSexit() handler does these. - FM */
fflush(stderr);
if (LYOutOfMemory == TRUE) {
LYOutOfMemory = FALSE;
printf("\r\n%s\r\n\r\n", MEMORY_EXHAUSTED_ABORT);
fflush(stdout);
}
LYCloseTracelog();
#endif /* !VMS */
exit(status);
}
PUBLIC void outofmem ARGS2(
CONST char *, fname,
CONST char *, func)
{
fprintf(stderr, "\n\n\n%s %s: %s\n", fname, func, MEMORY_EXHAUSTED_ABORTING);
LYOutOfMemory = TRUE;
LYexit(-1);
}
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