gcc/ada/adaint.h

   1 /****************************************************************************
   2  *                                                                          *
   3  *                         GNAT COMPILER COMPONENTS                         *
   4  *                                                                          *
   5  *                               A D A I N T                                *
   6  *                                                                          *
   7  *                              C Header File                               *
   8  *                                                                          *
   9  *          Copyright (C) 1992-2009, Free Software Foundation, Inc.         *
  10  *                                                                          *
  11  * GNAT is free software;  you can  redistribute it  and/or modify it under *
  12  * terms of the  GNU General Public License as published  by the Free Soft- *
  13  * ware  Foundation;  either version 3,  or (at your option) any later ver- *
  14  * sion.  GNAT is distributed in the hope that it will be useful, but WITH- *
  15  * OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY *
  16  * or FITNESS FOR A PARTICULAR PURPOSE.                                     *
  17  *                                                                          *
  18  * As a special exception under Section 7 of GPL version 3, you are granted *
  19  * additional permissions described in the GCC Runtime Library Exception,   *
  20  * version 3.1, as published by the Free Software Foundation.               *
  21  *                                                                          *
  22  * You should have received a copy of the GNU General Public License and    *
  23  * a copy of the GCC Runtime Library Exception along with this program;     *
  24  * see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    *
  25  * <http://www.gnu.org/licenses/>.                                          *
  26  *                                                                          *
  27  * GNAT was originally developed  by the GNAT team at  New York University. *
  28  * Extensive contributions were provided by Ada Core Technologies Inc.      *
  29  *                                                                          *
  30  ****************************************************************************/
  31
  32 #include <sys/stat.h>
  33 #include <stdio.h>
  34
  35 #ifdef _WIN32
  36 #include "mingw32.h"
  37 #endif
  38
  39 #include <dirent.h>
  40
  41 /*  Constants used for the form parameter encoding values  */
  42 #define Encoding_UTF8 0         /* UTF-8 */
  43 #define Encoding_8bits 1        /* Standard 8bits, CP_ACP on Windows. */
  44 #define Encoding_Unspecified 2  /* Based on GNAT_CODE_PAGE env variable. */
  45
  46 /* Large file support. It is unclear what portable mechanism we can use to
  47    determine at compile time what support the system offers for large files.
  48    For now we just list the platforms we have manually tested. */
  49
  50 #if defined (__GLIBC__) || defined (sun)  || defined (__sgi)
  51 #define GNAT_FOPEN fopen64
  52 #define GNAT_STAT stat64
  53 #define GNAT_FSTAT fstat64
  54 #define GNAT_LSTAT lstat64
  55 #define GNAT_STRUCT_STAT struct stat64
  56 #else
  57 #define GNAT_FOPEN fopen
  58 #define GNAT_STAT stat
  59 #define GNAT_FSTAT fstat
  60 #define GNAT_LSTAT lstat
  61 #define GNAT_STRUCT_STAT struct stat
  62 #endif
  63
  64 /* Type corresponding to GNAT.OS_Lib.OS_Time */
  65 #if defined (_WIN64)
  66 typedef long long OS_Time;
  67 #else
  68 typedef long OS_Time;
  69 #endif
  70
  71 /* A lazy cache for the attributes of a file. On some systems, a single call to
  72    stat() will give all this information, so it is better than doing a system
  73    call every time. On other systems this require several system calls.
  74 */
  75
  76 struct file_attributes {
  77   short exists;
  78
  79   short writable;
  80   short readable;
  81   short executable;
  82
  83   short symbolic_link;
  84   short regular;
  85   short directory;
  86
  87   OS_Time timestamp;
  88   long file_length;
  89 };
  90 /* WARNING: changing the size here might require changing the constant
  91  * File_Attributes_Size in osint.ads (which should be big enough to
  92  * fit the above struct on any system)
  93  */
  94
  95 extern int    __gnat_max_path_len;
  96 extern OS_Time __gnat_current_time                 (void);
  97 extern void   __gnat_current_time_string           (char *);
  98 extern void   __gnat_to_gm_time                    (OS_Time *, int *, int *,
  99                                                     int *, int *,
 100                                                     int *, int *);
 101 extern int    __gnat_get_maximum_file_name_length  (void);
 102 extern int    __gnat_get_switches_case_sensitive   (void);
 103 extern int    __gnat_get_file_names_case_sensitive (void);
 104 extern char   __gnat_get_default_identifier_character_set (void);
 105 extern void   __gnat_get_current_dir               (char *, int *);
 106 extern void   __gnat_get_object_suffix_ptr         (int *,
 107                                                     const char **);
 108 extern void   __gnat_get_executable_suffix_ptr     (int *,
 109                                                     const char **);
 110 extern void   __gnat_get_debuggable_suffix_ptr     (int *,
 111                                                     const char **);
 112 extern int    __gnat_readlink                      (char *, char *,
 113                                                     size_t);
 114 extern int    __gnat_symlink                       (char *, char *);
 115 extern int    __gnat_try_lock                      (char *, char *);
 116 extern int    __gnat_open_new                      (char *, int);
 117 extern int    __gnat_open_new_temp                 (char *, int);
 118 extern int    __gnat_mkdir                         (char *);
 119 extern int    __gnat_stat                          (char *,
 120                                                     GNAT_STRUCT_STAT *);
 121 extern int    __gnat_unlink                        (char *);
 122 extern int    __gnat_rename                        (char *, char *);
 123 extern int    __gnat_chdir                         (char *);
 124 extern int    __gnat_rmdir                         (char *);
 125
 126 extern FILE  *__gnat_fopen                         (char *, char *, int);
 127 extern FILE  *__gnat_freopen                       (char *, char *, FILE *,
 128                                                     int);
 129 extern int    __gnat_open_read                     (char *, int);
 130 extern int    __gnat_open_rw                       (char *, int);
 131 extern int    __gnat_open_create                   (char *, int);
 132 extern int    __gnat_create_output_file            (char *);
 133 extern int    __gnat_open_append                   (char *, int);
 134 extern long   __gnat_file_length                   (int);
 135 extern long   __gnat_named_file_length             (char *);
 136 extern void   __gnat_tmp_name                      (char *);
 137 extern DIR   *__gnat_opendir                       (char *);
 138 extern char  *__gnat_readdir                       (DIR *, char *, int *);
 139 extern int    __gnat_closedir                      (DIR *);
 140 extern int    __gnat_readdir_is_thread_safe        (void);
 141
 142 extern OS_Time __gnat_file_time_name                (char *);
 143 extern OS_Time __gnat_file_time_fd                  (int);
 144 /* return -1 in case of error */
 145
 146 extern void   __gnat_set_file_time_name            (char *, time_t);
 147
 148 extern int    __gnat_dup                                    (int);
 149 extern int    __gnat_dup2                                   (int, int);
 150 extern int    __gnat_file_exists                         (char *);
 151 extern int    __gnat_is_regular_file         (char *);
 152 extern int    __gnat_is_absolute_path        (char *,int);
 153 extern int    __gnat_is_directory                     (char *);
 154 extern int    __gnat_is_writable_file              (char *);
 155 extern int    __gnat_is_readable_file              (char *name);
 156 extern int    __gnat_is_executable_file      (char *name);
 157
 158 extern void reset_attributes (struct file_attributes* attr);
 159 extern long   __gnat_file_length_attr        (int, char *, struct file_attributes *);
 160 extern OS_Time __gnat_file_time_name_attr    (char *, struct file_attributes *);
 161 extern OS_Time __gnat_file_time_fd_attr      (int,    struct file_attributes *);
 162 extern int    __gnat_file_exists_attr        (char *, struct file_attributes *);
 163 extern int    __gnat_is_regular_file_attr    (char *, struct file_attributes *);
 164 extern int    __gnat_is_directory_attr       (char *, struct file_attributes *);
 165 extern int    __gnat_is_readable_file_attr   (char *, struct file_attributes *);
 166 extern int    __gnat_is_writable_file_attr   (char *, struct file_attributes *);
 167 extern int    __gnat_is_executable_file_attr (char *, struct file_attributes *);
 168 extern int    __gnat_is_symbolic_link_attr   (char *, struct file_attributes *);
 169
 170 extern void   __gnat_set_non_writable              (char *name);
 171 extern void   __gnat_set_writable                  (char *name);
 172 extern void   __gnat_set_executable                (char *name);
 173 extern void   __gnat_set_readable                  (char *name);
 174 extern void   __gnat_set_non_readable              (char *name);
 175 extern int    __gnat_is_symbolic_link              (char *name);
 176 extern int    __gnat_portable_spawn                (char *[]);
 177 extern int    __gnat_portable_no_block_spawn       (char *[]);
 178 extern int    __gnat_portable_wait                 (int *);
 179 extern char  *__gnat_locate_exec                   (char *, char *);
 180 extern char  *__gnat_locate_exec_on_path           (char *);
 181 extern char  *__gnat_locate_regular_file           (char *, char *);
 182 extern void   __gnat_maybe_glob_args               (int *, char ***);
 183 extern void   __gnat_os_exit                       (int);
 184 extern char  *__gnat_get_libraries_from_registry   (void);
 185 extern int    __gnat_to_canonical_file_list_init   (char *, int);
 186 extern char  *__gnat_to_canonical_file_list_next   (void);
 187 extern void   __gnat_to_canonical_file_list_free   (void);
 188 extern char  *__gnat_to_canonical_dir_spec         (char *, int);
 189 extern char  *__gnat_to_canonical_file_spec        (char *);
 190 extern char  *__gnat_to_host_dir_spec              (char *, int);
 191 extern char  *__gnat_to_host_file_spec             (char *);
 192 extern char  *__gnat_to_canonical_path_spec        (char *);
 193 extern void   __gnat_adjust_os_resource_limits     (void);
 194 extern void   convert_addresses                    (const char *, void *, int,
 195                                                     void *, int *);
 196 extern int    __gnat_copy_attribs                  (char *, char *, int);
 197 extern int    __gnat_feof                          (FILE *);
 198 extern int    __gnat_ferror                        (FILE *);
 199 extern int    __gnat_fileno                        (FILE *);
 200 extern int    __gnat_is_regular_file_fd            (int);
 201 extern FILE  *__gnat_constant_stderr               (void);
 202 extern FILE  *__gnat_constant_stdin                (void);
 203 extern FILE  *__gnat_constant_stdout               (void);
 204 extern char  *__gnat_full_name                     (char *, char *);
 205
 206 extern int    __gnat_arg_count                     (void);
 207 extern int    __gnat_len_arg                       (int);
 208 extern void   __gnat_fill_arg                      (char *, int);
 209 extern int    __gnat_env_count                     (void);
 210 extern int    __gnat_len_env                       (int);
 211 extern void   __gnat_fill_env                      (char *, int);
 212
 213 /* Routines for interface to scanf and printf functions for integer values */
 214
 215 extern int    get_int                              (void);
 216 extern void   put_int                              (int);
 217 extern void   put_int_stderr                       (int);
 218 extern int    get_char                             (void);
 219 extern void   put_char                             (int);
 220 extern void   put_char_stderr                      (int);
 221 extern char  *mktemp                               (char *);
 222
 223 extern void   __gnat_set_exit_status               (int);
 224
 225 extern int    __gnat_expect_fork                   (void);
 226 extern void   __gnat_expect_portable_execvp        (char *, char *[]);
 227 extern int    __gnat_pipe                          (int *);
 228 extern int    __gnat_expect_poll                   (int *, int, int, int *);
 229 extern void   __gnat_set_binary_mode               (int);
 230 extern void   __gnat_set_text_mode                 (int);
 231 extern char  *__gnat_ttyname                       (int);
 232 extern int    __gnat_lseek                         (int, long, int);
 233 extern int    __gnat_set_close_on_exec             (int, int);
 234 extern int    __gnat_dup                           (int);
 235 extern int    __gnat_dup2                          (int, int);
 236
 237 extern void   __gnat_os_filename                   (char *, char *, char *,
 238                                                     int *, char *, int *);
 239 #if defined (linux)
 240 extern void   *__gnat_lwp_self                     (void);
 241 #endif
 242
 243 #if defined (_WIN32)
 244 /* Interface to delete a handle from internally maintained list of child
 245    process handles on Windows */
 246 extern void
 247 __gnat_win32_remove_handle (HANDLE h, int pid);
 248 #endif
 249
 250 #ifdef IN_RTS
 251 /* Portable definition of strdup, which is not available on all systems.  */
 252 #define xstrdup(S)  strcpy ((char *) malloc (strlen (S) + 1), S)
 253 #endif
 254
 255 /* This function returns the version of GCC being used.  Here it's GCC 3.  */
 256 extern int    get_gcc_version                      (void);
 257
 258 extern int    __gnat_binder_supports_auto_init     (void);
 259 extern int    __gnat_sals_init_using_constructors  (void);