92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
|
/* mmap_helper.h
|
||
|
|
|
||
|
|
Copyright 2006 Red Hat, Inc.
|
||
|
|
|
||
|
|
This file is part of Cygwin.
|
||
|
|
|
||
|
|
This software is a copyrighted work licensed under the terms of the
|
||
|
|
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
|
||
|
|
details. */
|
||
|
|
|
||
|
|
#ifndef _MMAP_HELPER_H
|
||
|
|
#define _MMAP_HELPER_H
|
||
|
|
#define _MMIOWRAP(__ptr, __len, __func) \
|
||
|
|
({ \
|
||
|
|
BOOL __res; \
|
||
|
|
for (int __i = 0; __i < 2; __i++) \
|
||
|
|
{ \
|
||
|
|
__res = __func; \
|
||
|
|
if (__res || __i > 0) \
|
||
|
|
break; \
|
||
|
|
DWORD __errcode = GetLastError (); \
|
||
|
|
if (__errcode != ERROR_NOACCESS) \
|
||
|
|
break; \
|
||
|
|
switch (mmap_is_attached_or_noreserve (__ptr, __len)) \
|
||
|
|
{ \
|
||
|
|
case MMAP_NORESERVE_COMMITED: \
|
||
|
|
continue; \
|
||
|
|
case MMAP_RAISE_SIGBUS: \
|
||
|
|
raise(SIGBUS); \
|
||
|
|
default: \
|
||
|
|
break; \
|
||
|
|
} \
|
||
|
|
break; \
|
||
|
|
} \
|
||
|
|
__res; \
|
||
|
|
})
|
||
|
|
|
||
|
|
#define _MMSOCKWRAP(__ptr, __count, __func) \
|
||
|
|
({ \
|
||
|
|
int __res; \
|
||
|
|
for (int __i = 0; __i < 2; __i++) \
|
||
|
|
{ \
|
||
|
|
__res = __func; \
|
||
|
|
if (!__res || __i > 0) \
|
||
|
|
break; \
|
||
|
|
DWORD __errcode = WSAGetLastError (); \
|
||
|
|
if (__errcode != WSAEFAULT) \
|
||
|
|
break; \
|
||
|
|
for (unsigned __j = 0; __j < __count; __j++) \
|
||
|
|
switch (mmap_is_attached_or_noreserve (__ptr[__j].buf, __ptr[__j].len)) \
|
||
|
|
{ \
|
||
|
|
case MMAP_NORESERVE_COMMITED: \
|
||
|
|
goto keeptrying; \
|
||
|
|
case MMAP_RAISE_SIGBUS: \
|
||
|
|
raise(SIGBUS); \
|
||
|
|
default: \
|
||
|
|
break; \
|
||
|
|
} \
|
||
|
|
break; \
|
||
|
|
keeptrying: \
|
||
|
|
continue; \
|
||
|
|
} \
|
||
|
|
__res; \
|
||
|
|
})
|
||
|
|
|
||
|
|
extern inline BOOL
|
||
|
|
mmReadFile (HANDLE hFile, LPVOID lpBuffer, DWORD nNumberOfBytesToRead,
|
||
|
|
LPDWORD lpNumberOfBytesRead, LPOVERLAPPED lpOverlapped)
|
||
|
|
{
|
||
|
|
return _MMIOWRAP (lpBuffer, nNumberOfBytesToRead,
|
||
|
|
(ReadFile (hFile, lpBuffer, nNumberOfBytesToRead,
|
||
|
|
lpNumberOfBytesRead, lpOverlapped)));
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef _WINSOCK_H
|
||
|
|
extern inline int
|
||
|
|
mmWSARecvFrom (SOCKET s, LPWSABUF lpBuffers, DWORD dwBufferCount,
|
||
|
|
LPDWORD lpNumberOfBytesRecvd, LPDWORD lpFlags,
|
||
|
|
struct sockaddr* lpFrom,
|
||
|
|
LPINT lpFromlen, LPWSAOVERLAPPED lpOverlapped,
|
||
|
|
LPWSAOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
|
||
|
|
{
|
||
|
|
return _MMSOCKWRAP (lpBuffers, dwBufferCount,
|
||
|
|
(mmWSARecvFrom(s, lpBuffers, dwBufferCount,
|
||
|
|
lpNumberOfBytesRecvd, lpFlags, lpFrom,
|
||
|
|
lpFromlen, lpOverlapped,
|
||
|
|
lpCompletionRoutine)));
|
||
|
|
}
|
||
|
|
#endif /*_WINSOCK_H*/
|
||
|
|
|
||
|
|
#endif /*_MMAP_HELPER_H*/
|