X-Git-Url: http://git.hcoop.net/bpt/emacs.git/blobdiff_plain/1399490e2bb58e1e7212d7a8469e1286ced9423a..bf6b4923f7eedea193dee2130bf7fa597a5932d4:/src/msdos.c
diff --git a/src/msdos.c b/src/msdos.c
index a2bcc06ac1..010a0a3746 100644
--- a/src/msdos.c
+++ b/src/msdos.c
@@ -1,6 +1,6 @@
/* MS-DOS specific C utilities. -*- coding: cp850 -*-
-Copyright (C) 1993-1997, 1999-2013 Free Software Foundation, Inc.
+Copyright (C) 1993-1997, 1999-2014 Free Software Foundation, Inc.
This file is part of GNU Emacs.
@@ -50,6 +50,8 @@ along with GNU Emacs. If not, see . */
#include /* for chdir, dup, dup2, etc. */
#include /* for getdisk */
#pragma pack(0) /* dir.h does a pack(4), which isn't GCC's default */
+#undef opendir
+#include /* for opendir */
#include
#include /* for setmode */
#include /* for __dpmi_xxx stuff */
@@ -298,7 +300,7 @@ mouse_button_depressed (int b, int *xp, int *yp)
}
void
-mouse_get_pos (FRAME_PTR *f, int insist, Lisp_Object *bar_window,
+mouse_get_pos (struct frame **f, int insist, Lisp_Object *bar_window,
enum scroll_bar_part *part, Lisp_Object *x, Lisp_Object *y,
Time *time)
{
@@ -408,7 +410,7 @@ static int term_setup_done;
static unsigned short outside_cursor;
-/* Similar to the_only_frame. */
+/* The only display since MS-DOS does not support multiple ones. */
struct tty_display_info the_only_display_info;
/* Support for DOS/V (allows Japanese characters to be displayed on
@@ -602,11 +604,7 @@ dos_set_window_size (int *rows, int *cols)
Lisp_Object window = hlinfo->mouse_face_window;
if (! NILP (window) && XFRAME (XWINDOW (window)->frame) == f)
- {
- hlinfo->mouse_face_beg_row = hlinfo->mouse_face_beg_col = -1;
- hlinfo->mouse_face_end_row = hlinfo->mouse_face_end_col = -1;
- hlinfo->mouse_face_window = Qnil;
- }
+ reset_mouse_highlight (hlinfo);
}
/* Enable bright background colors. */
@@ -950,9 +948,6 @@ IT_write_glyphs (struct frame *f, struct glyph *str, int str_len)
Mouse Highlight (and friends..)
************************************************************************/
-/* Last window where we saw the mouse. Used by mouse-autoselect-window. */
-static Lisp_Object last_mouse_window;
-
static int mouse_preempted = 0; /* non-zero when XMenu gobbles mouse events */
int
@@ -1158,7 +1153,7 @@ IT_display_cursor (int on)
to put the cursor at the end of the text displayed there. */
static void
-IT_cmgoto (FRAME_PTR f)
+IT_cmgoto (struct frame *f)
{
/* Only set the cursor to where it should be if the display is
already in sync with the window contents. */
@@ -1229,7 +1224,7 @@ IT_cmgoto (FRAME_PTR f)
static void
IT_update_begin (struct frame *f)
{
- struct tty_display_info *display_info = FRAME_X_DISPLAY_INFO (f);
+ struct tty_display_info *display_info = FRAME_DISPLAY_INFO (f);
Mouse_HLInfo *hlinfo = &display_info->mouse_highlight;
struct frame *mouse_face_frame = hlinfo->mouse_face_mouse_frame;
@@ -1276,14 +1271,9 @@ IT_update_begin (struct frame *f)
}
}
else if (mouse_face_frame && !FRAME_LIVE_P (mouse_face_frame))
- {
- /* If the frame with mouse highlight was deleted, invalidate the
- highlight info. */
- hlinfo->mouse_face_beg_row = hlinfo->mouse_face_beg_col = -1;
- hlinfo->mouse_face_end_row = hlinfo->mouse_face_end_col = -1;
- hlinfo->mouse_face_window = Qnil;
- hlinfo->mouse_face_mouse_frame = NULL;
- }
+ /* If the frame with mouse highlight was deleted, invalidate the
+ highlight info. */
+ reset_mouse_highlight (hlinfo);
unblock_input ();
}
@@ -1291,7 +1281,7 @@ IT_update_begin (struct frame *f)
static void
IT_update_end (struct frame *f)
{
- struct tty_display_info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
+ struct tty_display_info *dpyinfo = FRAME_DISPLAY_INFO (f);
if (dpyinfo->termscript)
fprintf (dpyinfo->termscript, "\n= 0 && colors[1] < 16)
FRAME_BACKGROUND_PIXEL (SELECTED_FRAME ()) = colors[1];
}
- the_only_display_info.mouse_highlight.mouse_face_mouse_frame = NULL;
- the_only_display_info.mouse_highlight.mouse_face_beg_row =
- the_only_display_info.mouse_highlight.mouse_face_beg_col = -1;
- the_only_display_info.mouse_highlight.mouse_face_end_row =
- the_only_display_info.mouse_highlight.mouse_face_end_col = -1;
- the_only_display_info.mouse_highlight.mouse_face_face_id = DEFAULT_FACE_ID;
- the_only_display_info.mouse_highlight.mouse_face_window = Qnil;
- the_only_display_info.mouse_highlight.mouse_face_mouse_x =
- the_only_display_info.mouse_highlight.mouse_face_mouse_y = 0;
- the_only_display_info.mouse_highlight.mouse_face_defer = 0;
- the_only_display_info.mouse_highlight.mouse_face_hidden = 0;
+
+ reset_mouse_highlight (&the_only_display_info.mouse_highlight);
if (have_mouse) /* detected in dos_ttraw, which see */
{
@@ -1889,7 +1858,7 @@ initialize_msdos_display (struct terminal *term)
term->ring_bell_hook = IT_ring_bell;
term->reset_terminal_modes_hook = IT_reset_terminal_modes;
term->set_terminal_modes_hook = IT_set_terminal_modes;
- term->set_terminal_window_hook = IT_set_terminal_window;
+ term->set_terminal_window_hook = NULL;
term->update_begin_hook = IT_update_begin;
term->update_end_hook = IT_update_end;
term->frame_up_to_date_hook = IT_frame_up_to_date;
@@ -1916,18 +1885,6 @@ dos_get_saved_screen (char **screen, int *rows, int *cols)
#endif
}
-#ifndef HAVE_X_WINDOWS
-
-/* We are not X, but we can emulate it well enough for our needs... */
-void
-check_window_system (void)
-{
- if (! FRAME_MSDOS_P (SELECTED_FRAME ()))
- error ("Not running under a window system");
-}
-
-#endif
-
/* ----------------------- Keyboard control ----------------------
*
@@ -2691,10 +2648,10 @@ dos_rawgetc (void)
/* Generate SELECT_WINDOW_EVENTs when needed. */
if (!NILP (Vmouse_autoselect_window))
{
- mouse_window = window_from_coordinates (SELECTED_FRAME (),
- mouse_last_x,
- mouse_last_y,
- 0, 0);
+ static Lisp_Object last_mouse_window;
+
+ mouse_window = window_from_coordinates
+ (SELECTED_FRAME (), mouse_last_x, mouse_last_y, 0, 0);
/* A window will be selected only when it is not
selected now, and the last mouse movement event was
not in it. A minibuffer window will be selected iff
@@ -2709,10 +2666,9 @@ dos_rawgetc (void)
event.timestamp = event_timestamp ();
kbd_buffer_store_event (&event);
}
+ /* Remember the last window where we saw the mouse. */
last_mouse_window = mouse_window;
}
- else
- last_mouse_window = Qnil;
previous_help_echo_string = help_echo_string;
help_echo_string = help_echo_object = help_echo_window = Qnil;
@@ -3320,18 +3276,6 @@ XMenuDestroy (Display *foo, XMenu *menu)
xfree (menu);
menu_help_message = prev_menu_help_message = NULL;
}
-
-int
-x_pixel_width (struct frame *f)
-{
- return FRAME_COLS (f);
-}
-
-int
-x_pixel_height (struct frame *f)
-{
- return FRAME_LINES (f);
-}
#endif /* !HAVE_X_WINDOWS */
/* ----------------------- DOS / UNIX conversion --------------------- */
@@ -3341,7 +3285,7 @@ void msdos_downcase_filename (unsigned char *);
/* Destructively turn backslashes into slashes. */
void
-dostounix_filename (char *p, int ignore)
+dostounix_filename (char *p)
{
msdos_downcase_filename (p);
@@ -3605,7 +3549,7 @@ init_environment (int argc, char **argv, int skip_args)
if (!s) s = "c:/command.com";
t = alloca (strlen (s) + 1);
strcpy (t, s);
- dostounix_filename (t, 0);
+ dostounix_filename (t);
setenv ("SHELL", t, 0);
/* PATH is also downcased and backslashes mirrored. */
@@ -3615,7 +3559,7 @@ init_environment (int argc, char **argv, int skip_args)
/* Current directory is always considered part of MsDos's path but it is
not normally mentioned. Now it is. */
strcat (strcpy (t, ".;"), s);
- dostounix_filename (t, 0); /* Not a single file name, but this should work. */
+ dostounix_filename (t); /* Not a single file name, but this should work. */
setenv ("PATH", t, 1);
/* In some sense all dos users have root privileges, so... */
@@ -3921,6 +3865,9 @@ int setpgid (int pid, int pgid) { return 0; }
int setpriority (int x, int y, int z) { return 0; }
pid_t setsid (void) { return 0; }
+
+/* Gnulib support and emulation. */
+
#if __DJGPP__ == 2 && __DJGPP_MINOR__ < 4
ssize_t
readlink (const char *name, char *dummy1, size_t dummy2)
@@ -3932,6 +3879,38 @@ readlink (const char *name, char *dummy1, size_t dummy2)
}
#endif
+/* dir_pathname is set by sys_opendir and used in readlinkat and in
+ fstatat, when they get a special FD of zero, which means use the
+ last directory opened by opendir. */
+static char dir_pathname[MAXPATHLEN];
+DIR *
+sys_opendir (const char *dirname)
+{
+ _fixpath (dirname, dir_pathname);
+ return opendir (dirname);
+}
+
+ssize_t
+readlinkat (int fd, char const *name, char *buffer, size_t buffer_size)
+{
+ /* Rely on a hack: an open directory is modeled as file descriptor 0,
+ as in fstatat. FIXME: Add proper support for readlinkat. */
+ char fullname[MAXPATHLEN];
+
+ if (fd != AT_FDCWD)
+ {
+ if (strlen (dir_pathname) + strlen (name) + 1 >= MAXPATHLEN)
+ {
+ errno = ENAMETOOLONG;
+ return -1;
+ }
+ sprintf (fullname, "%s/%s", dir_pathname, name);
+ name = fullname;
+ }
+
+ return readlink (name, buffer, buffer_size);
+}
+
char *
careadlinkat (int fd, char const *filename,
char *buffer, size_t buffer_size,
@@ -3959,6 +3938,82 @@ careadlinkat (int fd, char const *filename,
return buffer;
}
+/* Emulate faccessat(2). */
+int
+faccessat (int dirfd, const char * path, int mode, int flags)
+{
+ /* We silently ignore FLAGS. */
+ flags = flags;
+
+ if (dirfd != AT_FDCWD
+ && !(IS_DIRECTORY_SEP (path[0])
+ || IS_DEVICE_SEP (path[1])))
+ {
+ errno = EBADF;
+ return -1;
+ }
+
+ return access (path, mode);
+}
+
+/* Emulate fstatat. */
+int
+fstatat (int fd, char const *name, struct stat *st, int flags)
+{
+ /* Rely on a hack: an open directory is modeled as file descriptor 0.
+ This is good enough for the current usage in Emacs, but is fragile.
+
+ FIXME: Add proper support for fdopendir, fstatat, readlinkat.
+ Gnulib does this and can serve as a model. */
+ char fullname[MAXPATHLEN];
+
+ flags = flags;
+
+ if (fd != AT_FDCWD)
+ {
+ char lastc = dir_pathname[strlen (dir_pathname) - 1];
+
+ if (strlen (dir_pathname) + strlen (name) + IS_DIRECTORY_SEP (lastc)
+ >= MAXPATHLEN)
+ {
+ errno = ENAMETOOLONG;
+ return -1;
+ }
+
+ sprintf (fullname, "%s%s%s",
+ dir_pathname, IS_DIRECTORY_SEP (lastc) ? "" : "/", name);
+ name = fullname;
+ }
+
+#if __DJGPP__ > 2 || __DJGPP_MINOR__ > 3
+ return (flags & AT_SYMLINK_NOFOLLOW) ? lstat (name, st) : stat (name, st);
+#else
+ return stat (name, st);
+#endif
+}
+
+#if __DJGPP__ == 2 && __DJGPP_MINOR__ < 4
+/* Emulate the Posix unsetenv. DJGPP v2.04 has this in the library. */
+int
+unsetenv (const char *name)
+{
+ char *var;
+ size_t name_len;
+ int retval;
+
+ if (name == NULL || *name == '\0' || strchr (name, '=') != NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ /* DJGPP's 'putenv' deletes the entry if it doesn't include '='. */
+ putenv (name);
+
+ return 0;
+}
+#endif
+
#if __DJGPP__ == 2 && __DJGPP_MINOR__ < 2
@@ -4084,8 +4139,8 @@ dos_yield_time_slice (void)
/* We don't have to call timer_check here
because wait_reading_process_output takes care of that. */
int
-sys_select (int nfds, SELECT_TYPE *rfds, SELECT_TYPE *wfds, SELECT_TYPE *efds,
- EMACS_TIME *timeout, void *ignored)
+sys_select (int nfds, fd_set *rfds, fd_set *wfds, fd_set *efds,
+ struct timespec *timeout, void *ignored)
{
int check_input;
struct timespec t;
@@ -4115,20 +4170,20 @@ sys_select (int nfds, SELECT_TYPE *rfds, SELECT_TYPE *wfds, SELECT_TYPE *efds,
}
else
{
- EMACS_TIME clnow, cllast, cldiff;
+ struct timespec clnow, cllast, cldiff;
gettime (&t);
- cllast = make_emacs_time (t.tv_sec, t.tv_nsec);
+ cllast = make_timespec (t.tv_sec, t.tv_nsec);
while (!check_input || !detect_input_pending ())
{
gettime (&t);
- clnow = make_emacs_time (t.tv_sec, t.tv_nsec);
- cldiff = sub_emacs_time (clnow, cllast);
- *timeout = sub_emacs_time (*timeout, cldiff);
+ clnow = make_timespec (t.tv_sec, t.tv_nsec);
+ cldiff = timespec_sub (clnow, cllast);
+ *timeout = timespec_sub (*timeout, cldiff);
/* Stop when timeout value crosses zero. */
- if (EMACS_TIME_SIGN (*timeout) <= 0)
+ if (timespec_sign (*timeout) <= 0)
return 0;
cllast = clnow;
dos_yield_time_slice ();