libphobos/libdruntime/core/sys/posix/sys/shm.d

   1 /**
   2  * D header file for POSIX.
   3  *
   4  * Copyright: Copyright Sean Kelly 2005 - 2009.
   5  * License:   $(HTTP www.boost.org/LICENSE_1_0.txt, Boost License 1.0).
   6  * Authors:   Sean Kelly
   7  * Standards: The Open Group Base Specifications Issue 6, IEEE Std 1003.1, 2004 Edition
   8  */
   9
  10 /*          Copyright Sean Kelly 2005 - 2009.
  11  * Distributed under the Boost Software License, Version 1.0.
  12  *    (See accompanying file LICENSE or copy at
  13  *          http://www.boost.org/LICENSE_1_0.txt)
  14  */
  15 module core.sys.posix.sys.shm;
  16
  17 import core.sys.posix.config;
  18 public import core.sys.posix.sys.types; // for pid_t, time_t, key_t
  19 public import core.sys.posix.sys.ipc;
  20
  21 version (OSX)
  22     version = Darwin;
  23 else version (iOS)
  24     version = Darwin;
  25 else version (TVOS)
  26     version = Darwin;
  27 else version (WatchOS)
  28     version = Darwin;
  29
  30 version (Posix):
  31 extern (C) nothrow @nogc:
  32
  33 //
  34 // XOpen (XSI)
  35 //
  36 /*
  37 SHM_RDONLY
  38 SHM_RND
  39
  40 shmatt_t
  41
  42 struct shmid_ds
  43 {
  44     ipc_perm    shm_perm;
  45     size_t      shm_segsz;
  46     pid_t       shm_lpid;
  47     pid_t       shm_cpid;
  48     shmatt_t    shm_nattch;
  49     time_t      shm_atime;
  50     time_t      shm_dtime;
  51     time_t      shm_ctime;
  52 }
  53 */
  54
  55 version (linux)
  56 {
  57     enum SHM_RDONLY     = 0x01000; // 010000
  58     enum SHM_RND        = 0x02000; // 020000
  59     enum SHM_REMAP      = 0x4000; // 040000
  60
  61     alias c_ulong   shmatt_t;
  62
  63     /* For any changes, please check /usr/include/bits/shm.h */
  64     struct shmid_ds
  65     {
  66         ipc_perm    shm_perm;
  67         size_t      shm_segsz;
  68         time_t      shm_atime;
  69         version (X86_64) {} else c_ulong     __unused1;
  70         time_t      shm_dtime;
  71         version (X86_64) {} else c_ulong     __unused2;
  72         time_t      shm_ctime;
  73         version (X86_64) {} else c_ulong     __unused3;
  74         pid_t       shm_cpid;
  75         pid_t       shm_lpid;
  76         shmatt_t    shm_nattch;
  77         c_ulong     __unused4;
  78         c_ulong     __unused5;
  79     }
  80 }
  81 else version (FreeBSD)
  82 {
  83     enum SHM_RDONLY     = 0x01000; // 010000
  84     enum SHM_RND        = 0x02000; // 020000
  85
  86     alias c_ulong   shmatt_t;
  87
  88     struct shmid_ds_old // <= FreeBSD7
  89     {
  90         ipc_perm_old    shm_perm;
  91         int             shm_segsz;
  92         pid_t           shm_lpid;
  93         pid_t           shm_cpid;
  94         short           shm_nattch;
  95         time_t          shm_atime;
  96         time_t          shm_dtime;
  97         time_t          shm_ctime;
  98         void*           shm_internal;
  99     }
 100
 101     struct shmid_ds
 102     {
 103          ipc_perm    shm_perm;
 104          int         shm_segsz;
 105          pid_t       shm_lpid;
 106          pid_t       shm_cpid;
 107          short       shm_nattch;
 108          time_t      shm_atime;
 109          time_t      shm_dtime;
 110          time_t      shm_ctime;
 111     }
 112 }
 113 else version (NetBSD)
 114 {
 115     enum SHM_RDONLY     = 0x01000; // 010000
 116     enum SHM_RND        = 0x02000; // 020000
 117
 118     alias c_ulong   shmatt_t;
 119
 120     struct shmid_ds
 121     {
 122         ipc_perm        shm_perm;
 123         size_t             shm_segsz;
 124         pid_t           shm_lpid;
 125         pid_t           shm_cpid;
 126         short           shm_nattch;
 127         time_t          shm_atime;
 128         time_t          shm_dtime;
 129         time_t          shm_ctime;
 130         void*           shm_internal;
 131     }
 132 }
 133 else version (OpenBSD)
 134 {
 135     enum SHM_RDONLY     = 0x01000; // 010000
 136     enum SHM_RND        = 0x02000; // 020000
 137
 138     alias short shmatt_t;
 139
 140     struct shmid_ds
 141     {
 142         ipc_perm   shm_perm;
 143         int        shm_segsz;
 144         pid_t      shm_lpid;
 145         pid_t      shm_cpid;
 146         shmatt_t   shm_nattch;
 147         time_t     shm_atime;
 148         c_long   __shm_atimensec;
 149         time_t     shm_dtime;
 150         c_long   __shm_dtimensec;
 151         time_t     shm_ctime;
 152         c_long   __shm_ctimensec;
 153         void*      shm_internal;
 154     }
 155 }
 156 else version (DragonFlyBSD)
 157 {
 158     enum SHM_RDONLY     = 0x01000; // 010000
 159     enum SHM_RND        = 0x02000; // 020000
 160
 161     alias c_ulong   shmatt_t;
 162
 163     struct shmid_ds
 164     {
 165          ipc_perm       shm_perm;
 166          int            shm_segsz;
 167          pid_t          shm_lpid;
 168          pid_t          shm_cpid;
 169          short          shm_nattch;
 170          time_t         shm_atime;
 171          time_t         shm_dtime;
 172          time_t         shm_ctime;
 173          private void*  shm_internal;
 174     }
 175 }
 176 else version (Darwin)
 177 {
 178
 179 }
 180 else version (Solaris)
 181 {
 182
 183 }
 184 else
 185 {
 186     static assert(false, "Unsupported platform");
 187 }
 188
 189 /*
 190 SHMLBA
 191
 192 void* shmat(int, const scope void*, int);
 193 int   shmctl(int, int, shmid_ds*);
 194 int   shmdt(const scope void*);
 195 int   shmget(key_t, size_t, int);
 196 */
 197
 198 version (CRuntime_Glibc)
 199 {
 200     int   __getpagesize();
 201     alias __getpagesize SHMLBA;
 202
 203     void* shmat(int, const scope void*, int);
 204     int   shmctl(int, int, shmid_ds*);
 205     int   shmdt(const scope void*);
 206     int   shmget(key_t, size_t, int);
 207 }
 208 else version (FreeBSD)
 209 {
 210     enum SHMLBA = 1 << 12; // PAGE_SIZE = (1<<PAGE_SHIFT)
 211
 212     void* shmat(int, const scope void*, int);
 213     int   shmctl(int, int, shmid_ds*);
 214     int   shmdt(const scope void*);
 215     int   shmget(key_t, size_t, int);
 216 }
 217 else version (NetBSD)
 218 {
 219     enum SHMLBA = 1 << 12; // PAGE_SIZE = (1<<PAGE_SHIFT)
 220
 221     void* shmat(int, const scope void*, int);
 222     int   shmctl(int, int, shmid_ds*);
 223     int   shmdt(const scope void*);
 224     int   shmget(key_t, size_t, int);
 225 }
 226 else version (OpenBSD)
 227 {
 228     enum SHMLBA = 1 << _MAX_PAGE_SHIFT;
 229
 230     void* shmat(int, const scope void*, int);
 231     int   shmctl(int, int, shmid_ds*);
 232     int   shmdt(const scope void*);
 233     int   shmget(key_t, size_t, int);
 234 }
 235 else version (DragonFlyBSD)
 236 {
 237     enum SHMLBA = 1 << 12; // PAGE_SIZE = (1<<PAGE_SHIFT)
 238
 239     void* shmat(int, const scope void*, int);
 240     int   shmctl(int, int, shmid_ds*);
 241     int   shmdt(const scope void*);
 242     int   shmget(key_t, size_t, int);
 243 }
 244 else version (Darwin)
 245 {
 246
 247 }
 248 else version (Solaris)
 249 {
 250
 251 }
 252 else version (CRuntime_Musl)
 253 {
 254     enum SHMLBA = 4096;
 255
 256     void* shmat(int, const scope void*, int);
 257     int   shmctl(int, int, shmid_ds*);
 258     int   shmdt(const scope void*);
 259     int   shmget(key_t, size_t, int);
 260 }
 261 else version (CRuntime_Bionic)
 262 {
 263     enum SHMLBA = 4096;
 264
 265     deprecated("Not useful on Android because it's disallowed by SELinux")
 266     {
 267         void* shmat(int, const scope void*, int);
 268         int   shmctl(int, int, shmid_ds*);
 269         int   shmdt(const scope void*);
 270         int   shmget(key_t, size_t, int);
 271     }
 272 }
 273 else version (CRuntime_UClibc)
 274 {
 275     int   __getpagesize();
 276     alias __getpagesize SHMLBA;
 277
 278     void* shmat(int, const scope void*, int);
 279     int   shmctl(int, int, shmid_ds*);
 280     int   shmdt(const scope void*);
 281     int   shmget(key_t, size_t, int);
 282 }
 283 else
 284 {
 285     static assert(false, "Unsupported platform");
 286 }