compat-cygwin.c

   1 /*
   2  * Cygwin Compatibility functions
   3  *
   4  *
   5  *  Licensed under the Open Software License version 1.1
   6  */
   7
   8
   9
  10 #include <sys/mman.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <sys/stat.h>
  14
  15 #include "lib.h"
  16 #include "allocate.h"
  17 #include "token.h"
  18
  19 void *blob_alloc(unsigned long size)
  20 {
  21         void *ptr;
  22         size = (size + 4095) & ~4095;
  23         ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
  24         if (ptr == MAP_FAILED)
  25                 ptr = NULL;
  26         else
  27                 memset(ptr, 0, size);
  28         return ptr;
  29 }
  30
  31 void blob_free(void *addr, unsigned long size)
  32 {
  33         size = (size + 4095) & ~4095;
  34         munmap(addr, size);
  35 }
  36
  37 long double string_to_ld(const char *nptr, char **endptr)
  38 {
  39         return strtod(nptr, endptr);
  40 }