dep/ACE_wrappers/ace/OS_NS_macros.h

   1 // -*- C++ -*-
   2
   3 //=============================================================================
   4 /**
   5  *  @file   OS_NS_macros.h
   6  *
   7  *  $Id: OS_NS_macros.h 80826 2008-03-04 14:51:23Z wotte $
   8  *
   9  *  @author Douglas C. Schmidt <schmidt@cs.wustl.edu>
  10  *  @author Jesper S. M|ller<stophph@diku.dk>
  11  *  @author and a cast of thousands...
  12  *
  13  *  Originally in OS.h.
  14  */
  15 //=============================================================================
  16
  17 #ifndef ACE_OS_NS_MACROS_H
  18 # define ACE_OS_NS_MACROS_H
  19
  20 # include /**/ "ace/pre.h"
  21
  22 # include "ace/config-all.h"
  23
  24 # if !defined (ACE_LACKS_PRAGMA_ONCE)
  25 #  pragma once
  26 # endif /* ACE_LACKS_PRAGMA_ONCE */
  27
  28 #if defined (ACE_WIN32)
  29 # define ACE_SOCKCALL_RETURN(OP,TYPE,FAILVALUE) \
  30   do { TYPE ace_result_ = (TYPE) OP; \
  31       if (ace_result_ == FAILVALUE) { int ___ = ::WSAGetLastError (); errno = ___; return (TYPE) FAILVALUE; } else return ace_result_; \
  32   } while (0)
  33 # define ACE_SOCKCALL(OP,TYPE,FAILVALUE,RESULT) \
  34   do { RESULT = (TYPE) OP; \
  35       if (RESULT == FAILVALUE) { int ___ = ::WSAGetLastError (); errno = ___; RESULT = FAILVALUE; } \
  36   } while (0)
  37 #else
  38 # define ACE_SOCKCALL_RETURN(OP,TYPE,FAILVALUE) ACE_OSCALL_RETURN(OP,TYPE,FAILVALUE)
  39 # define ACE_SOCKCALL(OP,TYPE,FAILVALUE,RESULT) ACE_OSCALL(OP,TYPE,FAILVALUE,RESULT)
  40 #endif /* ACE_WIN32 */
  41
  42 #if !defined (ACE_WIN32)
  43
  44 // Adapt the weird threading and synchronization routines (which
  45 // return errno rather than -1) so that they return -1 and set errno.
  46 // This is more consistent with the rest of ACE_OS and enables us to
  47 // use the ACE_OSCALL* macros.
  48 # if defined (ACE_VXWORKS)
  49 #   define ACE_ADAPT_RETVAL(OP,RESULT) ((RESULT = (OP)) != OK ? (errno = RESULT, -1) : 0)
  50 # else
  51 #   define ACE_ADAPT_RETVAL(OP,RESULT) ((RESULT = (OP)) != 0 ? (errno = RESULT, -1) : 0)
  52 # endif /* ACE_VXWORKS */
  53
  54 #else /* ACE_WIN32 */
  55
  56 // Adapt the Win32 System Calls (which return BOOLEAN values of TRUE
  57 // and FALSE) into int values expected by the ACE_OSCALL macros.
  58 # define ACE_ADAPT_RETVAL(OP,RESULT) ((RESULT = (OP)) == FALSE ? -1 : 0)
  59
  60 // Perform a mapping of Win32 error numbers into POSIX errnos.
  61 # define ACE_FAIL_RETURN(RESULT) do { \
  62   switch (ACE_OS::set_errno_to_last_error ()) { \
  63   case ERROR_NOT_ENOUGH_MEMORY: errno = ENOMEM; break; \
  64   case ERROR_FILE_EXISTS:       errno = EEXIST; break; \
  65   case ERROR_SHARING_VIOLATION: errno = EACCES; break; \
  66   case ERROR_PATH_NOT_FOUND:    errno = ENOENT; break; \
  67   } \
  68   return RESULT; } while (0)
  69
  70 #endif /* !ACE_WIN32 */
  71
  72 // Helper functions to split large intergers into smaller high-order
  73 // and low-order parts, and reconstitute them again.  These are
  74 // required primarily for supporting _FILE_OFFSET_BITS==64 on windows.
  75
  76 #if defined(ACE_WIN32)
  77 #  if defined(_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS==64)
  78 #    include "ace/Basic_Types.h"
  79
  80 #    define ACE_LOW_PART(X) static_cast<DWORD>(X)
  81
  82 ACE_BEGIN_VERSIONED_NAMESPACE_DECL
  83 LONG
  84 inline ACE_High_Part (ACE_OFF_T value)
  85 {
  86   LARGE_INTEGER new_value;
  87   new_value.QuadPart = value;
  88   return new_value.HighPart;
  89 }
  90 #    define ACE_HIGH_PART(X) ACE_High_Part(X)
  91
  92 LONGLONG
  93 inline ACE_Combine_Parts (LONG high, DWORD low)
  94 {
  95   LARGE_INTEGER value;
  96   value.LowPart = low;    // DWORD
  97   value.HighPart = high;  // LONG
  98   return value.QuadPart;
  99 }
 100 ACE_END_VERSIONED_NAMESPACE_DECL
 101
 102 #    define ACE_COMBINE_PARTS(X,Y) ACE_Combine_Parts(X,Y)
 103 #  else  /* _FILE_OFFSET_BITS==64 */
 104 #    define ACE_LOW_PART(X) X
 105 #    define ACE_HIGH_PART(X) 0
 106 #    define ACE_COMBINE_PARTS(X,Y) X
 107 #  endif /* _FILE_OFFSET_BITS==64 */
 108 #endif /* ACE_WIN32 */
 109
 110
 111
 112 # include /**/ "ace/post.h"
 113
 114 #endif /* ACE_OS_NS_MACROS_H */