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428
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1 /* System-dependent prototypes
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2 Copyright (C) 1985, 1993, 1994 Free Software Foundation, Inc.
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771
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3 Copyright (C) 2001 Ben Wing.
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428
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: FSF 19.30. Split out of sysdep.c/emacs.c. */
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23
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440
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24 #ifndef INCLUDED_sysdep_h_
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25 #define INCLUDED_sysdep_h_
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26
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27 #include <setjmp.h>
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28
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442
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29 #ifndef WIN32_NATIVE
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428
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30 extern char **environ;
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440
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31 #endif
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428
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32
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442
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33 #ifdef PDUMP
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34 int pdump_read_file (char **pdump_start_pos, size_t *pdump_length);
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35 #endif
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36
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428
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37 int eight_bit_tty (struct device *d);
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38
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39 void stuff_char (struct console *con, int c);
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40
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41 void init_baud_rate (struct device *d);
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42
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43 void set_exclusive_use (int fd);
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44
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45 void set_descriptor_non_blocking (int fd);
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46
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47 void wait_without_blocking (void);
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48
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49 int get_pty_max_bytes (int fd);
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665
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50 Intbyte get_eof_char (int fd);
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51
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52 /* Wait for subprocess with process id `pid' to terminate and
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53 make sure it will get eliminated (not remain forever as a zombie) */
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442
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54 #ifndef WIN32_NATIVE
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428
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55 void wait_for_termination (int pid);
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432
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56 #endif
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428
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57
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58 /* flush any pending output
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59 * (may flush input as well; it does not matter the way we use it)
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60 */
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61 void flush_pending_output (int channel);
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62
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63 void child_setup_tty (int out);
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64
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65 /* Suspend the Emacs process; give terminal to its superior. */
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66 void sys_suspend (void);
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67 /* Suspend a process if possible; give terminal to its superior. */
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68 void sys_suspend_process (int process);
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69
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70 void request_sigio (void);
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71 void unrequest_sigio (void);
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72
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73 void stop_interrupts (void);
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74 void start_interrupts (void);
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75 void slow_down_interrupts (void);
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76 void speed_up_interrupts (void);
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77 void init_poll_for_quit (void);
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78
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79 /* Used so that signals can break out of system calls that aren't
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80 naturally interruptible. */
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81
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82 extern JMP_BUF break_system_call_jump;
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83 extern volatile int can_break_system_calls;
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84
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85 /* Call these functions if you want to change some terminal parameter --
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86 reset the console, change the parameter, and init it again. */
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87 void init_one_console (struct console *c);
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88 void reset_one_console (struct console *c);
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89 void init_one_device (struct device *d);
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90 void reset_one_device (struct device *d);
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91
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92 /* Prepare all terminals for exiting Emacs; move the cursor to the
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93 bottom of the frame, turn off special modes, etc. Called at exit.
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94 This calls reset_one_console() on all consoles and does some other
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95 stuff (e.g. fix the foreground pgroup). */
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96
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97 void reset_all_consoles (void);
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98
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99 /* Call these functions if you are going to temporarily exit back to
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100 the shell (e.g. when suspending). This calls reset_one_console()
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101 on the initial console and does some other stuff (e.g. fix the
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102 foreground pgroup). */
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103
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104 void reset_initial_console (void);
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105 void reinit_initial_console (void);
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106
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107 /* We muck around with our process group. This function needs
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108 to be called at startup. The rest of the mucking is done as
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109 part of the functions reset_all_consoles(), reset_initial_console(),
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110 and reinit_initial_console(). */
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111
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112 void init_process_group (void);
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113 void munge_tty_process_group (void);
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114 void unmunge_tty_process_group (void);
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115
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116 void disconnect_controlling_terminal (void);
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117
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118 /* Return nonzero if safe to use tabs in output.
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119 At the time this is called, init_sys_modes has not been done yet. */
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120 int tabs_safe_p (struct device *d);
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121
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122 /* Get terminal size from system.
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123 If zero or a negative number is stored, the value is not valid. */
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124 void get_tty_device_size (struct device *d, int *widthp, int *heightp);
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125 /* Set the logical window size associated with descriptor FD */
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126 int set_window_size (int fd, int height, int width);
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127
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128 /* Set up the proper status flags for use of a pty. */
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129 void setup_pty (int fd);
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130
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131 /* Return the address of the start of the text segment prior to unexec. */
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132 char *start_of_text (void);
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133 /* Return the address of the start of the data segment prior to unexec. */
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134 void *start_of_data (void);
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135
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136 /* Get_system_name returns as its value a string for system-name to return. */
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137 void init_system_name (void);
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138
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771
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139 #ifdef WIN32_NATIVE
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140 void *sbrk (unsigned long increment);
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428
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141 #endif
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142
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440
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143 #endif /* INCLUDED_sysdep_h_ */
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