#include "buffer.h"
#include "window.h"
#include "frame.h"
+#include "blockinput.h"
#endif
#include "syssignal.h"
XSET (val, Lisp_Cons, (char *) address + size); \
if ((char *) XCONS (val) != (char *) address + size) \
{ \
- free (address); \
+ xfree (address); \
memory_full (); \
} \
} while (0)
error ("Memory exhausted");
}
-/* like malloc and realloc but check for no memory left */
+/* like malloc routines but check for no memory and block interrupt input. */
long *
xmalloc (size)
{
register long *val;
+ BLOCK_INPUT;
val = (long *) malloc (size);
+ UNBLOCK_INPUT;
if (!val && size) memory_full ();
return val;
{
register long *val;
+ BLOCK_INPUT;
/* We must call malloc explicitly when BLOCK is 0, since some
reallocs don't do this. */
if (! block)
val = (long *) malloc (size);
else
val = (long *) realloc (block, size);
+ UNBLOCK_INPUT;
if (!val && size) memory_full ();
return val;
}
+
+void
+xfree (block)
+ long *block;
+{
+ BLOCK_INPUT;
+ free (block);
+ UNBLOCK_INPUT;
+}
+
+\f
+/* Arranging to disable input signals while we're in malloc.
+
+ This only works with GNU malloc. To help out systems which can't
+ use GNU malloc, all the calls to malloc, realloc, and free
+ elsewhere in the code should be inside a BLOCK_INPUT/UNBLOCK_INPUT
+ pairs; unfortunately, we have no idea what C library functions
+ might call malloc, so we can't really protect them unless you're
+ using GNU malloc. Fortunately, most of the major operating can use
+ GNU malloc. */
+
+#ifndef SYSTEM_MALLOC
+static void (*__malloc_hook) (), (*old_malloc_hook) ();
+static void (*__realloc_hook) (), (*old_realloc_hook) ();
+static void (*__free_hook) (), (*old_free_hook) ();
+
+static void
+emacs_blocked_free (ptr)
+ void *ptr;
+{
+ BLOCK_INPUT;
+ __free_hook = old_free_hook;
+ free (ptr);
+ __free_hook = &emacs_blocked_free;
+ UNBLOCK_INPUT;
+}
+
+static void *
+emacs_blocked_malloc (size)
+ unsigned size;
+{
+ void *value;
+
+ BLOCK_INPUT;
+ __malloc_hook = old_malloc_hook;
+ value = malloc (size);
+ __malloc_hook = &emacs_blocked_malloc;
+ UNBLOCK_INPUT;
+
+ return value;
+}
+
+static void *
+emacs_blocked_realloc (ptr, size)
+ void *ptr;
+ unsigned size;
+{
+ void *value;
+
+ BLOCK_INPUT;
+ __realloc_hook = old_realloc_hook;
+ value = realloc (ptr, size);
+ __realloc_hook = &emacs_blocked_realloc;
+ UNBLOCK_INPUT;
+
+ return value;
+}
+
+void
+uninterrupt_malloc ()
+{
+ old_free_hook = __free_hook;
+ __free_hook = &emacs_blocked_free;
+
+ old_malloc_hook = __malloc_hook;
+ __malloc_hook = &emacs_blocked_malloc;
+
+ old_realloc_hook = __realloc_hook;
+ __realloc_hook = &emacs_blocked_realloc;
+}
+#endif
\f
/* Interval allocation. */
if (interval_block_index == INTERVAL_BLOCK_SIZE)
{
register struct interval_block *newi
- = (struct interval_block *) malloc (sizeof (struct interval_block));
-
- if (!newi)
- memory_full ();
+ = (struct interval_block *) xmalloc (sizeof (struct interval_block));
VALIDATE_LISP_STORAGE (newi, sizeof *newi);
newi->next = interval_block;
{
if (float_block_index == FLOAT_BLOCK_SIZE)
{
- register struct float_block *new = (struct float_block *) malloc (sizeof (struct float_block));
- if (!new) memory_full ();
+ register struct float_block *new = (struct float_block *) xmalloc (sizeof (struct float_block));
VALIDATE_LISP_STORAGE (new, sizeof *new);
new->next = float_block;
float_block = new;
{
if (cons_block_index == CONS_BLOCK_SIZE)
{
- register struct cons_block *new = (struct cons_block *) malloc (sizeof (struct cons_block));
- if (!new) memory_full ();
+ register struct cons_block *new = (struct cons_block *) xmalloc (sizeof (struct cons_block));
VALIDATE_LISP_STORAGE (new, sizeof *new);
new->next = cons_block;
cons_block = new;
length = wrong_type_argument (Qnatnump, length);
sizei = XINT (length);
- p = (struct Lisp_Vector *) malloc (sizeof (struct Lisp_Vector) + (sizei - 1) * sizeof (Lisp_Object));
- if (p == 0)
- memory_full ();
+ p = (struct Lisp_Vector *) xmalloc (sizeof (struct Lisp_Vector) + (sizei - 1) * sizeof (Lisp_Object));
VALIDATE_LISP_STORAGE (p, 0);
XSET (vector, Lisp_Vector, p);
{
if (symbol_block_index == SYMBOL_BLOCK_SIZE)
{
- struct symbol_block *new = (struct symbol_block *) malloc (sizeof (struct symbol_block));
- if (!new) memory_full ();
+ struct symbol_block *new = (struct symbol_block *) xmalloc (sizeof (struct symbol_block));
VALIDATE_LISP_STORAGE (new, sizeof *new);
new->next = symbol_block;
symbol_block = new;
{
if (marker_block_index == MARKER_BLOCK_SIZE)
{
- struct marker_block *new = (struct marker_block *) malloc (sizeof (struct marker_block));
- if (!new) memory_full ();
+ struct marker_block *new = (struct marker_block *) xmalloc (sizeof (struct marker_block));
VALIDATE_LISP_STORAGE (new, sizeof *new);
new->next = marker_block;
marker_block = new;
/* This string gets its own string block */
{
register struct string_block *new
- = (struct string_block *) malloc (sizeof (struct string_block_head) + fullsize);
+ = (struct string_block *) xmalloc (sizeof (struct string_block_head) + fullsize);
VALIDATE_LISP_STORAGE (new, 0);
- if (!new) memory_full ();
consing_since_gc += sizeof (struct string_block_head) + fullsize;
new->pos = fullsize;
new->next = large_string_blocks;
/* Make a new current string block and start it off with this string */
{
register struct string_block *new
- = (struct string_block *) malloc (sizeof (struct string_block));
- if (!new) memory_full ();
+ = (struct string_block *) xmalloc (sizeof (struct string_block));
VALIDATE_LISP_STORAGE (new, sizeof *new);
consing_since_gc += sizeof (struct string_block);
current_string_block->next = new;
if (i < MAX_SAVE_STACK)
{
if (stack_copy == 0)
- stack_copy = (char *) malloc (stack_copy_size = i);
+ stack_copy = (char *) xmalloc (stack_copy_size = i);
else if (stack_copy_size < i)
- stack_copy = (char *) realloc (stack_copy, (stack_copy_size = i));
+ stack_copy = (char *) xrealloc (stack_copy, (stack_copy_size = i));
if (stack_copy)
{
if ((int) (&stack_top_variable - stack_bottom) > 0)
else
all_buffers = buffer->next;
next = buffer->next;
- free (buffer);
+ xfree (buffer);
buffer = next;
}
else
else
all_vectors = vector->next;
next = vector->next;
- free (vector);
+ xfree (vector);
vector = next;
}
else
else
large_string_blocks = sb->next;
next = sb->next;
- free (sb);
+ xfree (sb);
sb = next;
}
else
while (from_sb)
{
to_sb = from_sb->next;
- free (from_sb);
+ xfree (from_sb);
from_sb = to_sb;
}
{
if (from_sb->next = to_sb->next)
from_sb->next->prev = from_sb;
- free (to_sb);
+ xfree (to_sb);
}
else
from_sb = to_sb;
-/* Interface to blocking complicated interrupt-driven input.
+/* blockinput.h - interface to blocking complicated interrupt-driven input.
Copyright (C) 1989, 1993 Free Software Foundation, Inc.
This file is part of GNU Emacs.
if (!NILP (buf))
return buf;
- b = (struct buffer *) malloc (sizeof (struct buffer));
- if (!b)
- memory_full ();
+ b = (struct buffer *) xmalloc (sizeof (struct buffer));
BUF_GAP_SIZE (b) = 20;
+ BLOCK_INPUT;
BUFFER_ALLOC (BUF_BEG_ADDR (b), BUF_GAP_SIZE (b));
+ UNBLOCK_INPUT;
if (! BUF_BEG_ADDR (b))
memory_full ();
/* Perhaps we should explicitly free the interval tree here... */
b->name = Qnil;
+ BLOCK_INPUT;
BUFFER_FREE (BUF_BEG_ADDR (b));
+ UNBLOCK_INPUT;
b->undo_list = Qnil;
return Qt;
/* Make a list of them all. */
result = Flist (noverlays, overlay_vec);
- free (overlay_vec);
+ xfree (overlay_vec);
return result;
}
endpos = oendpos;
}
- free (overlay_vec);
+ xfree (overlay_vec);
return make_number (endpos);
}
\f
struct frame_glyphs *glyphs;
{
if (glyphs->total_contents)
- free (glyphs->total_contents);
+ xfree (glyphs->total_contents);
- free (glyphs->used);
- free (glyphs->glyphs);
- free (glyphs->highlight);
- free (glyphs->enable);
- free (glyphs->bufp);
+ xfree (glyphs->used);
+ xfree (glyphs->glyphs);
+ xfree (glyphs->highlight);
+ xfree (glyphs->enable);
+ xfree (glyphs->bufp);
#ifdef HAVE_X_WINDOWS
if (FRAME_X_P (frame))
{
- free (glyphs->top_left_x);
- free (glyphs->top_left_y);
- free (glyphs->pix_width);
- free (glyphs->pix_height);
- free (glyphs->max_ascent);
+ xfree (glyphs->top_left_x);
+ xfree (glyphs->top_left_y);
+ xfree (glyphs->pix_width);
+ xfree (glyphs->pix_height);
+ xfree (glyphs->max_ascent);
}
#endif
- free (glyphs);
+ xfree (glyphs);
}
static void
tem = make_string (buf, bufp - buf);
else
tem = str;
- free (buf);
+ xfree (buf);
RETURN_UNGCPRO (tem);
}
\f
/* If we had to malloc something, free it. */
if (big_buffer)
- free (big_buffer);
+ xfree (big_buffer);
*bufptr = 0; /* Make sure our string end with a '\0' */
return bufptr - buffer;
#ifndef SYSTEM_MALLOC
if (! initialized)
- memory_warnings (0, malloc_warning);
+ {
+ /* Arrange to get warning messages as memory fills up. */
+ memory_warnings (0, malloc_warning);
+
+ /* Arrange to disable interrupt input while malloc and friends are
+ running. */
+ uninterrupt_malloc ();
+ }
#endif /* not SYSTEM_MALLOC */
#ifdef PRIO_PROCESS
#include "config.h"
#include "lisp.h"
-#ifdef HAVE_X_WINDOWS
-#include "xterm.h"
-#endif
+#include "blockinput.h"
#ifndef standalone
#include "commands.h"
valsize = readlink (XSTRING (filename)->data, buf, bufsize);
if (valsize < bufsize) break;
/* Buffer was not long enough */
- free (buf);
+ xfree (buf);
bufsize *= 2;
}
if (valsize == -1)
{
- free (buf);
+ xfree (buf);
return Qnil;
}
val = make_string (buf, valsize);
- free (buf);
+ xfree (buf);
return val;
#else /* not S_IFLNK */
return Qnil;
static int hfqry();
static int hfskbd();
- char *malloc();
+ char *xmalloc();
extern int errno;
static jmp_buf hftenv;
if (cmdlen) /* if arg structure to pass */
{
size = sizeof (struct hfctlreq) + cmdlen;
- if ((p.c = malloc(size)) == NULL) /* malloc one area */
+ if ((p.c = xmalloc(size)) == NULL) /* malloc one area */
return (-1);
memcpy (p.c, &req, sizeof (req)); /* copy CTL REQ struct */
/* write request to terminal */
if (write(fd,p.c,size) == -1) return (-1);
if (p.req != &req) /* free if allocated */
- free (p.c);
+ xfree (p.c);
return (0);
}
/* If we have to get more space, get enough to last a while. */
increment += 2000;
+ BLOCK_INPUT;
result = BUFFER_REALLOC (BEG_ADDR, (Z - BEG + GAP_SIZE + increment));
+ UNBLOCK_INPUT;
+
if (result == 0)
memory_full ();
BEG_ADDR = result;
#include "dispextern.h"
#include "keyboard.h"
#include "intervals.h"
+#include "blockinput.h"
#include <setjmp.h>
#include <errno.h>
extern int errno;
+/* Variables for blockinput.h: */
+
+/* Non-zero if interrupt input is blocked right now. */
+extern int interrupt_input_blocked;
+
+/* Nonzero means an input interrupt has arrived
+ during the current critical section. */
+extern int interrupt_input_pending;
+
+
#ifdef HAVE_X_WINDOWS
extern Lisp_Object Vmouse_grabbed;
SIGTYPE
input_poll_signal ()
{
-#ifdef HAVE_X_WINDOWS
- extern int x_input_blocked;
- if (x_input_blocked == 0)
-#endif
- if (!waiting_for_input)
- read_avail_input (0);
+ if (interrupt_input_blocked == 0
+ && !waiting_for_input)
+ read_avail_input (0);
signal (SIGALRM, input_poll_signal);
alarm (polling_period);
}
#include "buffer.h"
#include "keyboard.h"
#include "termhooks.h"
+#include "blockinput.h"
#define min(a, b) ((a) < (b) ? (a) : (b))
if (cmm_maps)
{
+ BLOCK_INPUT;
newmodes = (Lisp_Object *) realloc (cmm_modes, cmm_size *= 2);
newmaps = (Lisp_Object *) realloc (cmm_maps, cmm_size);
+ UNBLOCK_INPUT;
}
else
{
+ BLOCK_INPUT;
newmodes = (Lisp_Object *) malloc (cmm_size = 30);
newmaps = (Lisp_Object *) malloc (cmm_size);
+ UNBLOCK_INPUT;
}
if (newmaps && newmodes)
extern char *malloc (), *realloc (), *getenv (), *ctime (), *getwd ();
extern long *xmalloc (), *xrealloc ();
+extern void xfree ();
extern char *egetenv ();
Lisp_Object stream;
{
fclose (*(FILE **) XSTRING (stream));
- free (XPNTR (stream));
+ xfree (XPNTR (stream));
if (--load_in_progress < 0) load_in_progress = 0;
return Qnil;
}
#include "syntax.h"
#include "buffer.h"
#include "commands.h"
+#include "blockinput.h"
#include <sys/types.h>
#include "regex.h"
last_regexp = Qnil;
bufp->translate = translate;
+ BLOCK_INPUT;
val = re_compile_pattern ((char *) XSTRING (pattern)->data,
XSTRING (pattern)->size,
bufp);
+ UNBLOCK_INPUT;
if (val)
{
dummy = build_string (val);
/* Advise the searching functions about the space we have allocated
for register data. */
+ BLOCK_INPUT;
if (regp)
re_set_registers (bufp, regp, regp->num_regs, regp->start, regp->end);
+ UNBLOCK_INPUT;
return;
}
s2 = 0;
}
+ BLOCK_INPUT;
i = re_match_2 (&searchbuf, (char *) p1, s1, (char *) p2, s2,
point - BEGV, &search_regs,
ZV - BEGV);
+ UNBLOCK_INPUT;
if (i == -2)
matcher_overflow ();
compile_pattern (regexp, &searchbuf, &search_regs,
!NILP (current_buffer->case_fold_search) ? DOWNCASE_TABLE : 0);
immediate_quit = 1;
+ BLOCK_INPUT;
val = re_search (&searchbuf, (char *) XSTRING (string)->data,
XSTRING (string)->size, s, XSTRING (string)->size - s,
&search_regs);
+ UNBLOCK_INPUT;
immediate_quit = 0;
last_thing_searched = Qt;
if (val == -2)
compile_pattern (regexp, &searchbuf, 0, 0);
immediate_quit = 1;
+ BLOCK_INPUT;
val = re_search (&searchbuf, (char *) XSTRING (string)->data,
XSTRING (string)->size, 0, XSTRING (string)->size,
0);
+ UNBLOCK_INPUT;
immediate_quit = 0;
return val;
}
}
while (n < 0)
{
+ BLOCK_INPUT;
int val = re_search_2 (&searchbuf, (char *) p1, s1, (char *) p2, s2,
pos - BEGV, lim - pos, &search_regs,
/* Don't allow match past current point */
pos - BEGV);
+ UNBLOCK_INPUT;
if (val == -2)
matcher_overflow ();
if (val >= 0)
}
while (n > 0)
{
+ BLOCK_INPUT;
int val = re_search_2 (&searchbuf, (char *) p1, s1, (char *) p2, s2,
pos - BEGV, lim - pos, &search_regs,
lim - BEGV);
+ UNBLOCK_INPUT;
if (val == -2)
matcher_overflow ();
if (val >= 0)
(regoff_t *) xmalloc (2 * sizeof (regoff_t));
ends =
(regoff_t *) xmalloc (2 * sizeof (regoff_t));
+ BLOCK_INPUT;
re_set_registers (&searchbuf,
&search_regs,
2, starts, ends);
+ UNBLOCK_INPUT;
}
search_regs.start[0]
(regoff_t *) xmalloc (2 * sizeof (regoff_t));
ends =
(regoff_t *) xmalloc (2 * sizeof (regoff_t));
+ BLOCK_INPUT;
re_set_registers (&searchbuf,
&search_regs,
2, starts, ends);
+ UNBLOCK_INPUT;
}
search_regs.start[0]
length * sizeof (regoff_t));
}
+ BLOCK_INPUT;
re_set_registers (&searchbuf, &search_regs, length,
search_regs.start, search_regs.end);
+ UNBLOCK_INPUT;
}
}
#include "config.h"
#include "lisp.h"
+#include "blockinput.h"
#undef NULL
#define min(x,y) ((x) > (y) ? (y) : (x))
else
parent_id = getppid ();
- free (fpid_string); /* On VMS, this was malloc'd */
+ xfree (fpid_string); /* On VMS, this was malloc'd */
if (parent_id && parent_id != 0xffffffff)
{
char *npath, *spath;
extern char *getcwd ();
+ BLOCK_INPUT; /* getcwd uses malloc */
spath = npath = getcwd ((char *) 0, MAXPATHLEN);
/* On Altos 3068, getcwd can return @hostname/dir, so discard
up to first slash. Should be harmless on other systems. */
npath++;
strcpy (pathname, npath);
free (spath); /* getcwd uses malloc */
+ UNBLOCK_INPUT;
return pathname;
}
register DIR *dirp; /* stream from opendir */
{
sys_close (dirp->dd_fd);
- free ((char *) dirp->dd_buf); /* directory block defined in <dirent.h> */
- free ((char *) dirp);
+ xfree ((char *) dirp->dd_buf); /* directory block defined in <dirent.h> */
+ xfree ((char *) dirp);
}
#endif /* not AIX */
#endif /* SYSV_SYSTEM_DIR */
if (fd < 0)
return 0;
+ BLOCK_INPUT;
if (fstat (fd, &sbuf) < 0
|| (sbuf.st_mode & S_IFMT) != S_IFDIR
|| (dirp = (DIR *) malloc (sizeof (DIR))) == 0)
{
sys_close (fd);
+ UNBLOCK_INPUT;
return 0; /* bad luck today */
}
+ UNBLOCK_INPUT;
dirp->dd_fd = fd;
dirp->dd_loc = dirp->dd_size = 0; /* refill needed */
register DIR *dirp; /* stream from opendir */
{
sys_close (dirp->dd_fd);
- free ((char *) dirp);
+ xfree ((char *) dirp);
}
#define MAXPATHLEN 1024
- ptr = malloc (MAXPATHLEN);
+ ptr = xmalloc (MAXPATHLEN);
getcwd (ptr, MAXPATHLEN);
strcpy (pathname, ptr);
- free (ptr);
+ xfree (ptr);
return pathname;
}
buf = tparam (TS_set_window, 0, 0, start, 0, stop, FRAME_WIDTH (selected_frame));
}
OUTPUT (buf);
- free (buf);
+ xfree (buf);
losecursor ();
}
\f
{
buf = tparam (TS_ins_multi_chars, 0, 0, len);
OUTPUT1 (buf);
- free (buf);
+ xfree (buf);
if (start)
write_glyphs (start, len);
return;
{
buf = tparam (TS_del_multi_chars, 0, 0, n);
OUTPUT1 (buf);
- free (buf);
+ xfree (buf);
}
else
for (i = 0; i < n; i++)
background_highlight ();
buf = tparam (multi, 0, 0, i);
OUTPUT (buf);
- free (buf);
+ xfree (buf);
}
else if (single)
{
#include "buffer.h"
#include "dispextern.h"
#include "keyboard.h"
+#include "blockinput.h"
#ifdef HAVE_X_WINDOWS
extern void abort ();
BLOCK_INPUT;
XGetWindowInfo (FRAME_X_WINDOW (f), &wininfo);
XQueryTree (FRAME_X_WINDOW (f), &parent, &nchildren, &children);
- free (children);
+ xfree (children);
UNBLOCK_INPUT;
height = PIXEL_TO_CHAR_HEIGHT (f, wininfo.height);
*x -= wininfo.x;
*y -= wininfo.y;
XQueryTree (tempwindow, &tempwindow, &nchildren, &children);
- free (children);
+ xfree (children);
}
UNBLOCK_INPUT;
#include "frame.h"
#include "window.h"
#include "keyboard.h"
+#include "blockinput.h"
/* This may include sys/types.h, and that somehow loses
if this is not done before the other system files. */
/* now free up the strings */
for (i = 0; i < number_of_panes; i++)
{
- free (names[i]);
- free (enables[i]);
- free (obj_list[i]);
+ xfree (names[i]);
+ xfree (enables[i]);
+ xfree (obj_list[i]);
}
- free (menus);
- free (obj_list);
- free (names);
- free (enables);
- free (items);
+ xfree (menus);
+ xfree (obj_list);
+ xfree (names);
+ xfree (enables);
+ xfree (items);
/* free (title); */
if (error_name) error (error_name);
return XMenu_return;
/* If we just made an empty pane, get rid of it. */
if (i == 0)
{
- free ((*vector)[*p_ptr]);
- free ((*names)[*p_ptr]);
- free ((*enables)[*p_ptr]);
+ xfree ((*vector)[*p_ptr]);
+ xfree ((*names)[*p_ptr]);
+ xfree ((*enables)[*p_ptr]);
}
/* Otherwise, advance past it. */
else
#include "xterm.h" /* for all of the X includes */
#include "dispextern.h" /* frame.h seems to want this */
#include "frame.h" /* Need this to get the X window of selected_frame */
+#include "blockinput.h"
#define xfree free
#ifdef HAVE_X_WINDOWS
#include "lisp.h"
+#include "blockinput.h"
/* On 4.3 these lose if they come after xterm.h. */
#include <stdio.h>
struct event_queue x_mouse_queue;
#endif /* HAVE_X11 */
-/* Nonzero after BLOCK_INPUT; prevents input events from being
- processed until later. */
-
-int x_input_blocked;
-
#if defined (SIGIO) && defined (FIONREAD)
int BLOCK_INPUT_mask;
#endif /* ! defined (SIGIO) && defined (FIONREAD) */
-/* Nonzero if input events came in while x_input_blocked was nonzero.
- UNBLOCK_INPUT checks for this. */
-
-int x_pending_input;
-
/* The id of a bitmap used for icon windows.
One such map is shared by all Emacs icon windows.
This is zero if we have not yet had a need to create the bitmap. */
int prefix;
Lisp_Object part;
- if (x_input_blocked)
+ if (interrupt_input_blocked)
{
- x_pending_input = 1;
+ interrupt_input_pending = 1;
return -1;
}
- x_pending_input = 0;
+ interrupt_input_pending = 0;
BLOCK_INPUT;
if (numchars <= 0)
char buf[256];
sprintf (buf, format, *x_caught_error_message);
- free (x_caught_error_message);
+ xfree (x_caught_error_message);
x_uncatch_errors ();
error (buf);
void
x_uncatch_errors ()
{
- free (x_caught_error_message);
+ xfree (x_caught_error_message);
XHandleError (x_error_quitter);
}
XDestroyWindow (XDISPLAY f->display.x->window_desc);
XFlushQueue ();
- free (f->display.x);
+ xfree (f->display.x);
f->display.x = 0;
if (f == x_focus_frame)
x_focus_frame = 0;
/* Queue for mouse clicks. */
extern struct event_queue x_mouse_queue;
-/* Mechanism for interlocking between main program level
- and input interrupt level. */
-
-/* Nonzero during a critical section. At such a time, an input interrupt
- does nothing but set `x_pending_input'. */
-extern int x_input_blocked;
-
-/* Nonzero means an input interrupt has arrived
- during the current critical section. */
-extern int x_pending_input;
-
-/* Begin critical section. */
-#define BLOCK_INPUT (x_input_blocked++)
-
-/* End critical section. */
-#ifdef SIGIO
-/* If doing interrupt input, and an interrupt came in when input was blocked,
- reinvoke the interrupt handler now to deal with it. */
-#define UNBLOCK_INPUT \
- ((x_input_blocked--, (x_input_blocked < 0 ? (abort (), 0) : 0)), \
- (x_input_blocked == 0 && x_pending_input != 0 ? (kill (0, SIGIO), 0) : 0))
-#else
-#define UNBLOCK_INPUT \
- (x_input_blocked--, (x_input_blocked < 0 ? (abort (), 0) : 0))
-#endif
-
-#define TOTALLY_UNBLOCK_INPUT (x_input_blocked = 0)
-#define UNBLOCK_INPUT_RESIGNAL UNBLOCK_INPUT
-
/* This is the X connection that we are using. */
extern Display *x_current_display;
HCoop / bpt / emacs.git / commitdiff