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tty memory management at program termination

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Release some dynamically allocated memory prior to exit.  These were
previously left alone due to assumed complexity (at least by me...),
but dealing with them turned out to be straightforward.

|#if FREE_ALL_MEMORY
 free BASE_WINDOW  -- tty-specific; other windows are drawn on top of it
 free ttyDisplay   -- tty's basic data structure
|#endif
 free nh_HI, nh_HE -- termcap values handled differently from the rest

These are the last things that 'heaputil' always reported as not freed
for the basic Unix+tty configuration.  (I've observed other things not
being freed; those are post-3.4.3 bugs that need to be found and fixed.)
This commit is contained in:
PatR
2015-11-11 01:43:03 -08:00
parent cbeb562d20
commit f97c3dec0a
2 changed files with 61 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

79
win/tty/termcap.c
View File

@@ -1,4 +1,4 @@
/* NetHack 3.6 termcap.c $NHDT-Date: 1446856761 2015/11/07 00:39:21 $ $NHDT-Branch: master $:$NHDT-Revision: 1.22 $ */
/* NetHack 3.6 termcap.c $NHDT-Date: 1447234979 2015/11/11 09:42:59 $ $NHDT-Branch: master $:$NHDT-Revision: 1.23 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* NetHack may be freely redistributed. See license for details. */
@@ -30,8 +30,7 @@ static void NDECL(init_hilite);
static void NDECL(kill_hilite);
#endif
/* (see tcap.h) -- nh_CM, nh_ND, nh_CD, nh_HI,nh_HE, nh_US,nh_UE,
ul_hack */
/* (see tcap.h) -- nh_CM, nh_ND, nh_CD, nh_HI,nh_HE, nh_US,nh_UE, ul_hack */
struct tc_lcl_data tc_lcl_data = { 0, 0, 0, 0, 0, 0, 0, FALSE };
STATIC_VAR char *HO, *CL, *CE, *UP, *XD, *BC, *SO, *SE, *TI, *TE;
@@ -44,6 +43,7 @@ STATIC_VAR char *MD; /* may already be in use below */
#endif
#ifdef TERMLIB
boolean dynamic_HIHE = FALSE;
#ifdef TEXTCOLOR
STATIC_VAR char *MD;
#endif
@@ -152,9 +152,9 @@ int *wid, *hgt;
nh_US = "\033[4m";
MR = "\033[7m";
TI = nh_HE = ME = SE = nh_UE = "\033[0m";
/* strictly, SE should be 2, and nh_UE should be 24,
but we can't trust all ANSI emulators to be
that complete. -3. */
/* strictly, SE should be 2, and nh_UE should be 24,
but we can't trust all ANSI emulators to be
that complete. -3. */
#ifndef MICRO
AS = "\016";
AE = "\017";
@@ -221,11 +221,11 @@ int *wid, *hgt;
#else
HO = Tgetstr("ho");
#endif
/*
* LI and CO are set in ioctl.c via a TIOCGWINSZ if available. If
* the kernel has values for either we should use them rather than
* the values from TERMCAP ...
*/
/*
* LI and CO are set in ioctl.c via a TIOCGWINSZ if available. If
* the kernel has values for either we should use them rather than
* the values from TERMCAP ...
*/
#ifndef MICRO
if (!CO)
CO = tgetnum("co");
@@ -233,18 +233,17 @@ int *wid, *hgt;
LI = tgetnum("li");
#else
#if defined(TOS) && defined(__GNUC__)
if (!strcmp(term, "builtin"))
if (!strcmp(term, "builtin")) {
get_scr_size();
else {
} else
#endif
{
CO = tgetnum("co");
LI = tgetnum("li");
if (!LI || !CO) /* if we don't override it */
get_scr_size();
#if defined(TOS) && defined(__GNUC__)
}
#endif
#endif
#endif /* ?MICRO */
#ifdef CLIPPING
if (CO < COLNO || LI < ROWNO + 3)
setclipped();
@@ -298,16 +297,14 @@ int *wid, *hgt;
* pager as a string - so how can you send it NULs???
* -jsb
*/
nh_HI = (char *) alloc((unsigned) (strlen(SO) + 1));
nh_HE = (char *) alloc((unsigned) (strlen(ME) + 1));
i = 0;
while (digit(SO[i]))
i++;
Strcpy(nh_HI, &SO[i]);
i = 0;
while (digit(ME[i]))
i++;
Strcpy(nh_HE, &ME[i]);
for (i = 0; digit(SO[i]); ++i)
continue;
nh_HI = dupstr(&SO[i]);
for (i = 0; digit(ME[i]); ++i)
continue;
nh_HE = dupstr(&ME[i]);
dynamic_HIHE = TRUE;
AS = Tgetstr("as");
AE = Tgetstr("ae");
nh_CD = Tgetstr("cd");
@@ -340,10 +337,17 @@ int *wid, *hgt;
void
tty_shutdown()
{
#if defined(TEXTCOLOR) && defined(TERMLIB)
/* we only attempt to clean up a few individual termcap variables */
#ifdef TERMLIB
#ifdef TEXTCOLOR
kill_hilite();
#endif
/* we don't attempt to clean up individual termcap variables [yet?] */
if (dynamic_HIHE) {
free((genericptr_t) nh_HI), nh_HI = (char *) 0;
free((genericptr_t) nh_HE), nh_HE = (char *) 0;
dynamic_HIHE = FALSE;
}
#endif
return;
}
@@ -570,7 +574,8 @@ register int x, y;
}
/* See note above. xputc() is a special function. */
void xputc(c)
void
xputc(c)
#if defined(apollo)
int c;
#else
@@ -758,7 +763,7 @@ tty_delay_output()
#else /* MICRO */
/* BUG: if the padding character is visible, as it is on the 5620
then this looks terrible. */
if (flags.null)
if (flags.null) {
#ifdef TERMINFO
/* cbosgd!cbcephus!pds for SYS V R2 */
#ifdef NHSTDC
@@ -774,7 +779,7 @@ tty_delay_output()
#endif
#endif
else if (ospeed > 0 && ospeed < SIZE(tmspc10) && nh_CM) {
} else if (ospeed > 0 && ospeed < SIZE(tmspc10) && nh_CM) {
/* delay by sending cm(here) an appropriate number of times */
register int cmlen =
strlen(tgoto(nh_CM, ttyDisplay->curx, ttyDisplay->cury));
@@ -788,13 +793,15 @@ tty_delay_output()
#endif /* MICRO */
}
void cl_eos() /* free after Robert Viduya */
{ /* must only be called with curx = 1 */
if (nh_CD)
/* must only be called with curx = 1 */
void
cl_eos() /* free after Robert Viduya */
{
if (nh_CD) {
xputs(nh_CD);
else {
} else {
register int cy = ttyDisplay->cury + 1;
while (cy <= LI - 2) {
cl_end();
xputc('\n');

22
win/tty/wintty.c
View File

@@ -1,4 +1,4 @@
/* NetHack 3.6 wintty.c $NHDT-Date: 1446856765 2015/11/07 00:39:25 $ $NHDT-Branch: master $:$NHDT-Revision: 1.110 $ */
/* NetHack 3.6 wintty.c $NHDT-Date: 1447234979 2015/11/11 09:42:59 $ $NHDT-Branch: master $:$NHDT-Revision: 1.112 $ */
/* Copyright (c) David Cohrs, 1991 */
/* NetHack may be freely redistributed. See license for details. */
@@ -1192,14 +1192,28 @@ const char *str;
/* Just forget any windows existed, since we're about to exit anyway.
* Disable windows to avoid calls to window routines.
*/
for (i = 0; i < MAXWIN; i++)
if (wins[i] && (i != BASE_WINDOW)) {
for (i = 0; i < MAXWIN; i++) {
if (i == BASE_WINDOW)
continue; /* handle wins[BASE_WINDOW] last */
if (wins[i]) {
#ifdef FREE_ALL_MEMORY
free_window_info(wins[i], TRUE);
free((genericptr_t) wins[i]);
#endif
wins[i] = 0;
wins[i] = (struct WinDesc *) 0;
}
}
#ifdef FREE_ALL_MEMORY
if (BASE_WINDOW != WIN_ERR && wins[BASE_WINDOW]) {
free_window_info(wins[BASE_WINDOW], TRUE);
free((genericptr_t) wins[BASE_WINDOW]);
wins[BASE_WINDOW] = (struct WinDesc *) 0;
BASE_WINDOW = WIN_ERR;
}
free((genericptr_t) ttyDisplay);
ttyDisplay = (struct DisplayDesc *) 0;
#endif
#ifndef NO_TERMS /*(until this gets added to the window interface)*/
tty_shutdown(); /* cleanup termcap/terminfo/whatever */
#endif