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) 1992-2010, 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) && defined(_LFAPI))
  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   unsigned char exists;
  78
  79   unsigned char writable;
  80   unsigned char readable;
  81   unsigned char executable;
  82
  83   unsigned char symbolic_link;
  84   unsigned char regular;
  85   unsigned char 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 int    __gnat_get_env_vars_case_sensitive   (void);
 105 extern char   __gnat_get_default_identifier_character_set (void);
 106 extern void   __gnat_get_current_dir               (char *, int *);
 107 extern void   __gnat_get_object_suffix_ptr         (int *,
 108                                                     const char **);
 109 extern void   __gnat_get_executable_suffix_ptr     (int *,
 110                                                     const char **);
 111 extern void   __gnat_get_debuggable_suffix_ptr     (int *,
 112                                                     const char **);
 113 extern int    __gnat_readlink                      (char *, char *,
 114                                                     size_t);
 115 extern int    __gnat_symlink                       (char *, char *);
 116 extern int    __gnat_try_lock                      (char *, char *);
 117 extern int    __gnat_open_new                      (char *, int);
 118 extern int    __gnat_open_new_temp                 (char *, int);
 119 extern int    __gnat_mkdir                         (char *);
 120 extern int    __gnat_stat                          (char *,
 121                                                     GNAT_STRUCT_STAT *);
 122 extern int    __gnat_unlink                        (char *);
 123 extern int    __gnat_rename                        (char *, char *);
 124 extern int    __gnat_chdir                         (char *);
 125 extern int    __gnat_rmdir                         (char *);
 126
 127 extern FILE  *__gnat_fopen                         (char *, char *, int);
 128 extern FILE  *__gnat_freopen                       (char *, char *, FILE *,
 129                                                     int);
 130 extern int    __gnat_open_read                     (char *, int);
 131 extern int    __gnat_open_rw                       (char *, int);
 132 extern int    __gnat_open_create                   (char *, int);
 133 extern int    __gnat_create_output_file            (char *);
 134 extern int    __gnat_open_append                   (char *, int);
 135 extern long   __gnat_file_length                   (int);
 136 extern long   __gnat_named_file_length             (char *);
 137 extern void   __gnat_tmp_name                      (char *);
 138 extern DIR   *__gnat_opendir                       (char *);
 139 extern char  *__gnat_readdir                       (DIR *, char *, int *);
 140 extern int    __gnat_closedir                      (DIR *);
 141 extern int    __gnat_readdir_is_thread_safe        (void);
 142
 143 extern OS_Time __gnat_file_time_name                (char *);
 144 extern OS_Time __gnat_file_time_fd                  (int);
 145 /* return -1 in case of error */
 146
 147 extern void   __gnat_set_file_time_name            (char *, time_t);
 148
 149 extern int    __gnat_dup                                    (int);
 150 extern int    __gnat_dup2                                   (int, int);
 151 extern int    __gnat_file_exists                         (char *);
 152 extern int    __gnat_is_regular_file         (char *);
 153 extern int    __gnat_is_absolute_path        (char *,int);
 154 extern int    __gnat_is_directory                     (char *);
 155 extern int    __gnat_is_writable_file              (char *);
 156 extern int    __gnat_is_readable_file              (char *name);
 157 extern int    __gnat_is_executable_file      (char *name);
 158
 159 extern void __gnat_reset_attributes (struct file_attributes* attr);
 160 extern long   __gnat_file_length_attr        (int, char *, struct file_attributes *);
 161 extern OS_Time __gnat_file_time_name_attr    (char *, struct file_attributes *);
 162 extern OS_Time __gnat_file_time_fd_attr      (int,    struct file_attributes *);
 163 extern int    __gnat_file_exists_attr        (char *, struct file_attributes *);
 164 extern int    __gnat_is_regular_file_attr    (char *, struct file_attributes *);
 165 extern int    __gnat_is_directory_attr       (char *, struct file_attributes *);
 166 extern int    __gnat_is_readable_file_attr   (char *, struct file_attributes *);
 167 extern int    __gnat_is_writable_file_attr   (char *, struct file_attributes *);
 168 extern int    __gnat_is_executable_file_attr (char *, struct file_attributes *);
 169 extern int    __gnat_is_symbolic_link_attr   (char *, struct file_attributes *);
 170
 171 extern void   __gnat_set_non_writable              (char *name);
 172 extern void   __gnat_set_writable                  (char *name);
 173 extern void   __gnat_set_executable                (char *name);
 174 extern void   __gnat_set_readable                  (char *name);
 175 extern void   __gnat_set_non_readable              (char *name);
 176 extern int    __gnat_is_symbolic_link              (char *name);
 177 extern int    __gnat_portable_spawn                (char *[]);
 178 extern int    __gnat_portable_no_block_spawn       (char *[]);
 179 extern int    __gnat_portable_wait                 (int *);
 180 extern char  *__gnat_locate_exec                   (char *, char *);
 181 extern char  *__gnat_locate_exec_on_path           (char *);
 182 extern char  *__gnat_locate_regular_file           (char *, char *);
 183 extern void   __gnat_maybe_glob_args               (int *, char ***);
 184 extern void   __gnat_os_exit                       (int);
 185 extern char  *__gnat_get_libraries_from_registry   (void);
 186 extern int    __gnat_to_canonical_file_list_init   (char *, int);
 187 extern char  *__gnat_to_canonical_file_list_next   (void);
 188 extern void   __gnat_to_canonical_file_list_free   (void);
 189 extern char  *__gnat_to_canonical_dir_spec         (char *, int);
 190 extern char  *__gnat_to_canonical_file_spec        (char *);
 191 extern char  *__gnat_to_host_dir_spec              (char *, int);
 192 extern char  *__gnat_to_host_file_spec             (char *);
 193 extern char  *__gnat_to_canonical_path_spec        (char *);
 194 extern void   __gnat_adjust_os_resource_limits     (void);
 195 extern void   convert_addresses                    (const char *, void *, int,
 196                                                     void *, int *);
 197 extern int    __gnat_copy_attribs                  (char *, char *, int);
 198 extern int    __gnat_feof                          (FILE *);
 199 extern int    __gnat_ferror                        (FILE *);
 200 extern int    __gnat_fileno                        (FILE *);
 201 extern int    __gnat_is_regular_file_fd            (int);
 202 extern FILE  *__gnat_constant_stderr               (void);
 203 extern FILE  *__gnat_constant_stdin                (void);
 204 extern FILE  *__gnat_constant_stdout               (void);
 205 extern char  *__gnat_full_name                     (char *, char *);
 206
 207 extern int    __gnat_arg_count                     (void);
 208 extern int    __gnat_len_arg                       (int);
 209 extern void   __gnat_fill_arg                      (char *, int);
 210 extern int    __gnat_env_count                     (void);
 211 extern int    __gnat_len_env                       (int);
 212 extern void   __gnat_fill_env                      (char *, int);
 213
 214 /* Routines for interface to scanf and printf functions for integer values */
 215
 216 extern int    get_int                              (void);
 217 extern void   put_int                              (int);
 218 extern void   put_int_stderr                       (int);
 219 extern int    get_char                             (void);
 220 extern void   put_char                             (int);
 221 extern void   put_char_stderr                      (int);
 222 extern char  *mktemp                               (char *);
 223
 224 extern void   __gnat_set_exit_status               (int);
 225
 226 extern int    __gnat_expect_fork                   (void);
 227 extern void   __gnat_expect_portable_execvp        (char *, char *[]);
 228 extern int    __gnat_pipe                          (int *);
 229 extern int    __gnat_expect_poll                   (int *, int, int, int *);
 230 extern void   __gnat_set_binary_mode               (int);
 231 extern void   __gnat_set_text_mode                 (int);
 232 extern char  *__gnat_ttyname                       (int);
 233 extern int    __gnat_lseek                         (int, long, int);
 234 extern int    __gnat_set_close_on_exec             (int, int);
 235 extern int    __gnat_dup                           (int);
 236 extern int    __gnat_dup2                          (int, int);
 237
 238 extern int    __gnat_number_of_cpus                (void);
 239
 240 extern void   __gnat_os_filename                   (char *, char *, char *,
 241                                                     int *, char *, int *);
 242 #if defined (linux)
 243 extern void   *__gnat_lwp_self                     (void);
 244 #endif
 245
 246 #if defined (_WIN32)
 247 /* Interface to delete a handle from internally maintained list of child
 248    process handles on Windows */
 249 extern void
 250 __gnat_win32_remove_handle (HANDLE h, int pid);
 251 #endif
 252
 253 #ifdef IN_RTS
 254 /* Portable definition of strdup, which is not available on all systems.  */
 255 #define xstrdup(S)  strcpy ((char *) malloc (strlen (S) + 1), S)
 256 #endif
 257
 258 /* This function returns the version of GCC being used.  Here it's GCC 3.  */
 259 extern int    get_gcc_version                      (void);
 260
 261 extern int    __gnat_binder_supports_auto_init     (void);
 262 extern int    __gnat_sals_init_using_constructors  (void);