src/api/sys_mman.c

   1 #include <sys/mman.h>
   2 #include "options.h"
   3 #define T(t) (t*)0;
   4 #define F(t,n) {t *y = &x.n;}
   5 #define C(n) switch(n){case n:;}
   6 static void f()
   7 {
   8 T(mode_t)
   9 T(off_t)
  10 T(size_t)
  11
  12 C(PROT_EXEC)
  13 C(PROT_NONE)
  14 C(PROT_READ)
  15 C(PROT_WRITE)
  16 C(MAP_FIXED)
  17 C(MAP_PRIVATE)
  18 C(MAP_SHARED)
  19 #ifdef _XOPEN_SOURCE
  20 C(MS_ASYNC)
  21 C(MS_INVALIDATE)
  22 C(MS_SYNC)
  23 #endif
  24 C(MCL_CURRENT)
  25 C(MCL_FUTURE)
  26 {void *x = MAP_FAILED;}
  27 C(POSIX_MADV_DONTNEED)
  28 C(POSIX_MADV_NORMAL)
  29 C(POSIX_MADV_RANDOM)
  30 C(POSIX_MADV_SEQUENTIAL)
  31 C(POSIX_MADV_WILLNEED)
  32
  33 #ifdef POSIX_TYPED_MEMORY_OBJECTS
  34 C(POSIX_TYPED_MEM_ALLOCATE)
  35 C(POSIX_TYPED_MEM_ALLOCATE_CONTIG)
  36 C(POSIX_TYPED_MEM_MAP_ALLOCATABLE)
  37 {
  38 struct posix_typed_mem_info x;
  39 F(size_t,posix_tmi_length)
  40 }
  41 int(*p)(const void*restrict,size_t,off_t*restrict,size_t*restrict,int*restrict) = posix_mem_offset;
  42 int(*p)(int,struct posix_typed_mem_info*) = posix_typed_mem_get_info;
  43 int(*p)(const char*,int,int) = posix_typed_mem_open;
  44 #endif
  45
  46 {int(*p)(const void*,size_t) = mlock;}
  47 {int(*p)(int) = mlockall;}
  48 {void*(*p)(void*,size_t,int,int,int,off_t) = mmap;}
  49 {int(*p)(void*,size_t,int) = mprotect;}
  50 #ifdef _XOPEN_SOURCE
  51 {int(*p)(void*,size_t,int) = msync;}
  52 #endif
  53 {int(*p)(const void*,size_t) = munlock;}
  54 {int(*p)(void) = munlockall;}
  55 {int(*p)(void*,size_t) = munmap;}
  56 {int(*p)(void*,size_t,int) = posix_madvise;}
  57 #ifdef POSIX_SHARED_MEMORY_OBJECTS
  58 {int(*p)(const char*,int,mode_t) = shm_open;}
  59 {int(*p)(const char*) = shm_unlink;}
  60 #endif
  61 }