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) 1992-2011, 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 #ifdef __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 #include <sys/stat.h>
  37 #include <stdio.h>
  38
  39 #ifdef _WIN32
  40 #include "mingw32.h"
  41 #endif
  42
  43 #include <dirent.h>
  44
  45 /*  Constants used for the form parameter encoding values  */
  46 #define Encoding_UTF8 0         /* UTF-8 */
  47 #define Encoding_8bits 1        /* Standard 8bits, CP_ACP on Windows. */
  48 #define Encoding_Unspecified 2  /* Based on GNAT_CODE_PAGE env variable. */
  49
  50 /* Large file support. It is unclear what portable mechanism we can use to
  51    determine at compile time what support the system offers for large files.
  52    For now we just list the platforms we have manually tested. */
  53
  54 #if defined (__GLIBC__) || defined (sun)  || (defined (__sgi) && defined(_LFAPI))
  55 #define GNAT_FOPEN fopen64
  56 #define GNAT_STAT stat64
  57 #define GNAT_FSTAT fstat64
  58 #define GNAT_LSTAT lstat64
  59 #define GNAT_STRUCT_STAT struct stat64
  60 #else
  61 #define GNAT_FOPEN fopen
  62 #define GNAT_STAT stat
  63 #define GNAT_FSTAT fstat
  64 #define GNAT_LSTAT lstat
  65 #define GNAT_STRUCT_STAT struct stat
  66 #endif
  67
  68 /* Type corresponding to GNAT.OS_Lib.OS_Time */
  69 #if defined (_WIN64)
  70 typedef long long OS_Time;
  71 #else
  72 typedef long OS_Time;
  73 #endif
  74
  75 /* A lazy cache for the attributes of a file. On some systems, a single call to
  76    stat() will give all this information, so it is better than doing a system
  77    call every time. On other systems this require several system calls.
  78 */
  79
  80 struct file_attributes {
  81   unsigned char exists;
  82
  83   unsigned char writable;
  84   unsigned char readable;
  85   unsigned char executable;
  86
  87   unsigned char symbolic_link;
  88   unsigned char regular;
  89   unsigned char directory;
  90
  91   OS_Time timestamp;
  92   long file_length;
  93 };
  94 /* WARNING: changing the size here might require changing the constant
  95  * File_Attributes_Size in osint.ads (which should be big enough to
  96  * fit the above struct on any system)
  97  */
  98
  99 extern int    __gnat_max_path_len;
 100 extern OS_Time __gnat_current_time                 (void);
 101 extern void   __gnat_current_time_string           (char *);
 102 extern void   __gnat_to_gm_time                    (OS_Time *, int *, int *,
 103                                                     int *, int *,
 104                                                     int *, int *);
 105 extern int    __gnat_get_maximum_file_name_length  (void);
 106 extern int    __gnat_get_switches_case_sensitive   (void);
 107 extern int    __gnat_get_file_names_case_sensitive (void);
 108 extern int    __gnat_get_env_vars_case_sensitive   (void);
 109 extern char   __gnat_get_default_identifier_character_set (void);
 110 extern void   __gnat_get_current_dir               (char *, int *);
 111 extern void   __gnat_get_object_suffix_ptr         (int *,
 112                                                     const char **);
 113 extern void   __gnat_get_executable_suffix_ptr     (int *,
 114                                                     const char **);
 115 extern void   __gnat_get_debuggable_suffix_ptr     (int *,
 116                                                     const char **);
 117 extern int    __gnat_readlink                      (char *, char *,
 118                                                     size_t);
 119 extern int    __gnat_symlink                       (char *, char *);
 120 extern int    __gnat_try_lock                      (char *, char *);
 121 extern int    __gnat_open_new                      (char *, int);
 122 extern int    __gnat_open_new_temp                 (char *, int);
 123 extern int    __gnat_mkdir                         (char *);
 124 extern int    __gnat_stat                          (char *,
 125                                                     GNAT_STRUCT_STAT *);
 126 extern int    __gnat_unlink                        (char *);
 127 extern int    __gnat_rename                        (char *, char *);
 128 extern int    __gnat_chdir                         (char *);
 129 extern int    __gnat_rmdir                         (char *);
 130
 131 extern FILE  *__gnat_fopen                         (char *, char *, int);
 132 extern FILE  *__gnat_freopen                       (char *, char *, FILE *,
 133                                                     int);
 134 extern int    __gnat_open_read                     (char *, int);
 135 extern int    __gnat_open_rw                       (char *, int);
 136 extern int    __gnat_open_create                   (char *, int);
 137 extern int    __gnat_create_output_file            (char *);
 138 extern int    __gnat_create_output_file_new        (char *);
 139
 140 extern int    __gnat_open_append                   (char *, int);
 141 extern long   __gnat_file_length                   (int);
 142 extern long   __gnat_named_file_length             (char *);
 143 extern void   __gnat_tmp_name                      (char *);
 144 extern DIR   *__gnat_opendir                       (char *);
 145 extern char  *__gnat_readdir                       (DIR *, char *, int *);
 146 extern int    __gnat_closedir                      (DIR *);
 147 extern int    __gnat_readdir_is_thread_safe        (void);
 148
 149 extern OS_Time __gnat_file_time_name                (char *);
 150 extern OS_Time __gnat_file_time_fd                  (int);
 151 /* return -1 in case of error */
 152
 153 extern void   __gnat_set_file_time_name            (char *, time_t);
 154
 155 extern int    __gnat_dup                                    (int);
 156 extern int    __gnat_dup2                                   (int, int);
 157 extern int    __gnat_file_exists                         (char *);
 158 extern int    __gnat_is_regular_file         (char *);
 159 extern int    __gnat_is_absolute_path        (char *,int);
 160 extern int    __gnat_is_directory                     (char *);
 161 extern int    __gnat_is_writable_file              (char *);
 162 extern int    __gnat_is_readable_file              (char *name);
 163 extern int    __gnat_is_executable_file      (char *name);
 164
 165 extern void __gnat_reset_attributes (struct file_attributes* attr);
 166 extern long   __gnat_file_length_attr        (int, char *, struct file_attributes *);
 167 extern OS_Time __gnat_file_time_name_attr    (char *, struct file_attributes *);
 168 extern OS_Time __gnat_file_time_fd_attr      (int,    struct file_attributes *);
 169 extern int    __gnat_file_exists_attr        (char *, struct file_attributes *);
 170 extern int    __gnat_is_regular_file_attr    (char *, struct file_attributes *);
 171 extern int    __gnat_is_directory_attr       (char *, struct file_attributes *);
 172 extern int    __gnat_is_readable_file_attr   (char *, struct file_attributes *);
 173 extern int    __gnat_is_writable_file_attr   (char *, struct file_attributes *);
 174 extern int    __gnat_is_executable_file_attr (char *, struct file_attributes *);
 175 extern int    __gnat_is_symbolic_link_attr   (char *, struct file_attributes *);
 176
 177 extern void   __gnat_set_non_writable              (char *name);
 178 extern void   __gnat_set_writable                  (char *name);
 179 extern void   __gnat_set_executable                (char *name);
 180 extern void   __gnat_set_readable                  (char *name);
 181 extern void   __gnat_set_non_readable              (char *name);
 182 extern int    __gnat_is_symbolic_link              (char *name);
 183 extern int    __gnat_portable_spawn                (char *[]);
 184 extern int    __gnat_portable_no_block_spawn       (char *[]);
 185 extern int    __gnat_portable_wait                 (int *);
 186 extern char  *__gnat_locate_exec                   (char *, char *);
 187 extern char  *__gnat_locate_exec_on_path           (char *);
 188 extern char  *__gnat_locate_regular_file           (char *, char *);
 189 extern void   __gnat_maybe_glob_args               (int *, char ***);
 190 extern void   __gnat_os_exit                       (int);
 191 extern char  *__gnat_get_libraries_from_registry   (void);
 192 extern int    __gnat_to_canonical_file_list_init   (char *, int);
 193 extern char  *__gnat_to_canonical_file_list_next   (void);
 194 extern void   __gnat_to_canonical_file_list_free   (void);
 195 extern char  *__gnat_to_canonical_dir_spec         (char *, int);
 196 extern char  *__gnat_to_canonical_file_spec        (char *);
 197 extern char  *__gnat_to_host_dir_spec              (char *, int);
 198 extern char  *__gnat_to_host_file_spec             (char *);
 199 extern char  *__gnat_to_canonical_path_spec        (char *);
 200 extern void   __gnat_adjust_os_resource_limits     (void);
 201 extern void   convert_addresses                    (const char *, void *, int,
 202                                                     void *, int *);
 203 extern int    __gnat_copy_attribs                  (char *, char *, int);
 204 extern int    __gnat_feof                          (FILE *);
 205 extern int    __gnat_ferror                        (FILE *);
 206 extern int    __gnat_fileno                        (FILE *);
 207 extern int    __gnat_is_regular_file_fd            (int);
 208 extern FILE  *__gnat_constant_stderr               (void);
 209 extern FILE  *__gnat_constant_stdin                (void);
 210 extern FILE  *__gnat_constant_stdout               (void);
 211 extern char  *__gnat_full_name                     (char *, char *);
 212
 213 extern int    __gnat_arg_count                     (void);
 214 extern int    __gnat_len_arg                       (int);
 215 extern void   __gnat_fill_arg                      (char *, int);
 216 extern int    __gnat_env_count                     (void);
 217 extern int    __gnat_len_env                       (int);
 218 extern void   __gnat_fill_env                      (char *, int);
 219
 220 /* Routines for interface to scanf and printf functions for integer values */
 221
 222 extern int    get_int                              (void);
 223 extern void   put_int                              (int);
 224 extern void   put_int_stderr                       (int);
 225 extern int    get_char                             (void);
 226 extern void   put_char                             (int);
 227 extern void   put_char_stderr                      (int);
 228 extern char  *mktemp                               (char *);
 229
 230 extern void   __gnat_set_exit_status               (int);
 231
 232 extern int    __gnat_expect_fork                   (void);
 233 extern void   __gnat_expect_portable_execvp        (char *, char *[]);
 234 extern int    __gnat_pipe                          (int *);
 235 extern int    __gnat_expect_poll                   (int *, int, int, int *);
 236 extern void   __gnat_set_binary_mode               (int);
 237 extern void   __gnat_set_text_mode                 (int);
 238 extern char  *__gnat_ttyname                       (int);
 239 extern int    __gnat_lseek                         (int, long, int);
 240 extern int    __gnat_set_close_on_exec             (int, int);
 241 extern int    __gnat_dup                           (int);
 242 extern int    __gnat_dup2                          (int, int);
 243
 244 extern int    __gnat_number_of_cpus                (void);
 245
 246 extern void   __gnat_os_filename                   (char *, char *, char *,
 247                                                     int *, char *, int *);
 248 #if defined (linux)
 249 extern void   *__gnat_lwp_self                     (void);
 250
 251 /* Routines for interface to required CPU set primitives */
 252
 253 #include <sched.h>
 254
 255 extern cpu_set_t *__gnat_cpu_alloc                 (size_t);
 256 extern size_t __gnat_cpu_alloc_size                (size_t);
 257 extern void   __gnat_cpu_free                  (cpu_set_t *);
 258 extern void   __gnat_cpu_zero                      (size_t, cpu_set_t *);
 259 extern void   __gnat_cpu_set                       (int, size_t, cpu_set_t *);
 260 #endif
 261
 262 #if defined (_WIN32)
 263 /* Interface to delete a handle from internally maintained list of child
 264    process handles on Windows */
 265 extern void
 266 __gnat_win32_remove_handle (HANDLE h, int pid);
 267 #endif
 268
 269 #ifdef IN_RTS
 270 /* Portable definition of strdup, which is not available on all systems.  */
 271 #define xstrdup(S)  strcpy ((char *) malloc (strlen (S) + 1), S)
 272 #endif
 273
 274 /* This function returns the version of GCC being used.  Here it's GCC 3.  */
 275 extern int    get_gcc_version                      (void);
 276
 277 extern int    __gnat_binder_supports_auto_init     (void);
 278 extern int    __gnat_sals_init_using_constructors  (void);
 279
 280 #ifdef __cplusplus
 281 }
 282 #endif