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comparison src/sysdep.h @ 0:376386a54a3c r19-14

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Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
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children 0293115a14e9
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-1:000000000000 0:376386a54a3c
1 /* System-dependent prototypes
2 Copyright (C) 1985, 1993, 1994 Free Software Foundation, Inc.
3
4 This file is part of XEmacs.
5
6 XEmacs is free software; you can redistribute it and/or modify it
7 under the terms of the GNU General Public License as published by the
8 Free Software Foundation; either version 2, or (at your option) any
9 later version.
10
11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with XEmacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
20
21 /* Synched up with: FSF 19.30. Split out of sysdep.c/emacs.c. */
22
23 #ifndef _XEMACS_SYSDEP_H_
24 #define _XEMACS_SYSDEP_H_
25
26 #include <setjmp.h>
27
28 #if !defined(VMS) || !defined(LINK_CRTL_SHARE) || !defined(SHAREABLE_LIB_BUG)
29 extern char **environ;
30 #else
31 extern noshare char **environ;
32 #endif /* VMS sharable environ bug */
33
34 struct emacs_tty;
35 int emacs_get_tty (int fd, struct emacs_tty *settings);
36 int emacs_set_tty (int fd, struct emacs_tty *settings, int waitp);
37
38 int eight_bit_tty (struct device *d);
39
40 void stuff_char (struct console *con, int c);
41
42 void init_baud_rate (struct device *d);
43
44 void set_exclusive_use (int fd);
45
46 void set_descriptor_non_blocking (int fd);
47
48 void wait_without_blocking (void);
49
50 /* Wait for subprocess with process id `pid' to terminate and
51 make sure it will get eliminated (not remain forever as a zombie) */
52 void wait_for_termination (int pid);
53
54 /* flush any pending output
55 * (may flush input as well; it does not matter the way we use it)
56 */
57 void flush_pending_output (int channel);
58
59 void child_setup_tty (int out);
60
61 /* Suspend the Emacs process; give terminal to its superior. */
62 void sys_suspend (void);
63
64 void request_sigio (void);
65 void unrequest_sigio (void);
66
67 void stop_interrupts (void);
68 void start_interrupts (void);
69 void slow_down_interrupts (void);
70 void speed_up_interrupts (void);
71 void init_poll_for_quit (void);
72 void reset_poll_for_quit (void);
73
74 /* Used so that signals can break out of system calls that aren't
75 naturally interruptible. */
76
77 extern JMP_BUF break_system_call_jump;
78 extern int can_break_system_calls;
79
80 int sys_write_1 (int fildes, CONST void *buf, unsigned int nbyte,
81 int allow_quit);
82 int sys_read_1 (int fildes, void *buf, unsigned int nbyte,
83 int allow_quit);
84
85 /* Call these functions if you want to change some terminal parameter --
86 reset the console, change the parameter, and init it again. */
87 void init_one_console (struct console *c);
88 void reset_one_console (struct console *c);
89 void init_one_device (struct device *d);
90 void reset_one_device (struct device *d);
91
92 /* Prepare all terminals for exiting Emacs; move the cursor to the
93 bottom of the frame, turn off special modes, etc. Called at exit.
94 This calls reset_one_console() on all consoles and does some other
95 stuff (e.g. fix the foreground pgroup). */
96
97 void reset_all_consoles (void);
98
99 /* Call these functions if you are going to temporarily exit back to
100 the shell (e.g. when suspending). This calls reset_one_console()
101 on the initial console and does some other stuff (e.g. fix the
102 foreground pgroup). */
103
104 void reset_initial_console (void);
105 void reinit_initial_console (void);
106
107 /* We muck around with our process group. This function needs
108 to be called at startup. The rest of the mucking is done as
109 part of the functions reset_all_consoles(), reset_initial_console(),
110 and reinit_initial_console(). */
111
112 void init_process_group (void);
113 void munge_tty_process_group (void);
114 void unmunge_tty_process_group (void);
115
116 void disconnect_controlling_terminal (void);
117
118 /* Return nonzero if safe to use tabs in output.
119 At the time this is called, init_sys_modes has not been done yet. */
120 int tabs_safe_p (struct device *d);
121
122 /* Get terminal size from system.
123 If zero or a negative number is stored, the value is not valid. */
124 void get_tty_device_size (struct device *d, int *widthp, int *heightp);
125 /* Set the logical window size associated with descriptor FD */
126 int set_window_size (int fd, int height, int width);
127
128 /* Set up the proper status flags for use of a pty. */
129 void setup_pty (int fd);
130
131 /* Return the address of the start of the text segment prior to unexec. */
132 char *start_of_text (void);
133 /* Return the address of the start of the data segment prior to unexec. */
134 void *start_of_data (void);
135 /* Return the address of the end of the text segment prior to unexec. */
136 char *end_of_text (void);
137 /* Return the address of the end of the data segment prior to unexec. */
138 char *end_of_data (void);
139
140 /* Get_system_name returns as its value a string for system-name to return. */
141 void init_system_name (void);
142
143 #ifndef HAVE_GETWD
144 char *getwd (char *pathname);
145 #endif
146
147 #ifndef HAVE_RENAME
148 int rename (CONST char *from, CONST char *to);
149 #endif
150
151 #ifndef HAVE_DUP2
152 int dup2 (int oldd, int newd);
153 #endif
154
155 #ifdef VMS
156 void init_vms_input (void);
157
158 int vms_truncate (char *fn);
159 int vlimit (void); /* BTW, name conflicts with unix syscall */
160 int define_logical_name (char *varname, char *string)
161 int delete_logical_name (char *varname);
162 int rename_sans_version (char *from, char *to);
163 char *vmserrstr (int status);
164 char *sys_translate_vms (char *vfile);
165 char *sys_translate_unix (char *ufile);
166 int creat_copy_attrs (char *old, char *new);
167 int link (char *file, char *new);
168 #endif /* VMS */
169
170 #ifndef HAVE_STRERROR
171 /* X11R6 defines strerror as a macro */
172 # ifdef strerror
173 # undef strerror
174 # endif
175 CONST char *strerror (int);
176 #endif
177
178 #ifndef HAVE_H_ERRNO
179 extern int h_errno;
180 #endif
181
182 #endif /* _XEMACS_SYSDEP_H_ */