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428
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1 /* Support routines for the NT version of XEmacs.
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2 Copyright (C) 1994 Free Software Foundation, Inc.
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Adapted for XEmacs by David Hobley <david@spook-le0.cia.com.au> */
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22 /* Sync'ed with Emacs 19.34.6 by Marc Paquette <marcpa@cam.org> */
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23
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24 /* #define FULL_DEBUG */
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25
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440
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26 #ifndef INCLUDED_nt_h_
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27 #define INCLUDED_nt_h_
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28
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442
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29 #include "syswindows.h"
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30
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428
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31 #ifdef DEBUG_XEMACS
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32 #define DebPrint(stuff) _DebPrint stuff
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33 #else
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34 #define DebPrint(stuff)
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35 #endif
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36
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37 /* ------------------------------------------------------------------------- */
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38
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39 /* child_process.status values */
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40 enum {
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41 STATUS_READ_ERROR = -1,
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42 STATUS_READ_READY,
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43 STATUS_READ_IN_PROGRESS,
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44 STATUS_READ_FAILED,
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45 STATUS_READ_SUCCEEDED,
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46 STATUS_READ_ACKNOWLEDGED
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47 };
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48
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49 /* This structure is used for both pipes and sockets; for
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50 a socket, the process handle in pi is NULL. */
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51 typedef struct _child_process
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52 {
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53 int fd;
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54 int pid;
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55 HANDLE char_avail;
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56 HANDLE char_consumed;
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57 HANDLE thrd;
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58 HWND hwnd;
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59 PROCESS_INFORMATION procinfo;
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60 volatile int status;
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61 char chr;
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62 } child_process;
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63
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64 #define MAX_CHILDREN MAXDESC/2
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65 #define CHILD_ACTIVE(cp) ((cp)->char_avail != NULL)
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66
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67 /* parallel array of private info on file handles */
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68 typedef struct
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69 {
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70 unsigned flags;
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71 HANDLE hnd;
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72 child_process * cp;
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73 } filedesc;
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74
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442
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75 extern filedesc fd_info [];
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428
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76
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77 /* fd_info flag definitions */
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78 #define FILE_READ 0x0001
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79 #define FILE_WRITE 0x0002
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80 #define FILE_BINARY 0x0010
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81 #define FILE_LAST_CR 0x0020
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82 #define FILE_AT_EOF 0x0040
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83 #define FILE_SEND_SIGCHLD 0x0080
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84 #define FILE_PIPE 0x0100
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85 #define FILE_SOCKET 0x0200
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86
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87 extern child_process * new_child (void);
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88 extern void delete_child (child_process *cp);
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89
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90 /* ------------------------------------------------------------------------- */
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91
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92 /* Get long (aka "true") form of file name, if it exists. */
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93 extern BOOL win32_get_long_filename (char * name, char * buf, int size);
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94
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95 /* Prepare our standard handles for proper inheritance by child processes. */
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96 extern void prepare_standard_handles (int in, int out,
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97 int err, HANDLE handles[4]);
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98
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99 /* Reset our standard handles to their original state. */
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100 extern void reset_standard_handles (int in, int out,
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101 int err, HANDLE handles[4]);
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102
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103 /* Return the string resource associated with KEY of type TYPE. */
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104 extern LPBYTE nt_get_resource (char * key, LPDWORD type);
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105
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106 void set_process_dir (const char * dir);
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107 time_t convert_time (FILETIME ft);
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108
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442
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109 extern void init_ntproc (void);
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110 extern void term_ntproc (int unused);
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111
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112 /* ----------------------------------------------------------------- */
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113 /* Useful routines for manipulating memory-mapped files. */
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114
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115 typedef struct file_data
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116 {
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117 const char *name;
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118 unsigned long size;
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119 HANDLE file;
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120 HANDLE file_mapping;
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121 char *file_base;
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122 } file_data;
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123
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124 #define OFFSET_TO_RVA(var,section) \
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125 (section->VirtualAddress + ((DWORD)(var) - section->PointerToRawData))
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126
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127 #define RVA_TO_OFFSET(var,section) \
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128 (section->PointerToRawData + ((DWORD)(var) - section->VirtualAddress))
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129
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130 #define RVA_TO_PTR(var,section,filedata) \
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131 ((void *)(RVA_TO_OFFSET(var,section) + (filedata).file_base))
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132
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133 int open_input_file (file_data *p_file, const char *name);
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134 int open_output_file (file_data *p_file, const char *name, unsigned long size);
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135 void close_file_data (file_data *p_file);
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136 void mswindows_executable_type (const char * filename, int * is_dos_app,
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137 int * is_cygnus_app);
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138
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139 /* In process-nt.c */
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140 extern int compare_env (const void *strp1, const void *strp2);
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141
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142 void mswindows_set_errno (unsigned long win32_error);
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143 void mswindows_set_last_errno (void);
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144
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145 void wait_for_termination (HANDLE pid);
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146
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147 int mswindows_fstat (int handle, struct stat *buffer);
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148 int mswindows_stat (const char * path, struct stat * buf);
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428
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149
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440
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150 #endif /* INCLUDED_nt_h_ */
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