/*++

Copyright (c) Microsoft Corporation. All rights reserved.

Module Name:

    mswsock.h

Abstract:

    This module contains the Microsoft-specific extensions to the Windows
    Sockets API.

Revision History:

--*/

#ifndef _MSWSOCKDEF_
#define _MSWSOCKDEF_

#if _MSC_VER > 1000
#pragma once
#endif
#include <winapifamily.h>

#if(_WIN32_WINNT >= 0x0600)
#ifdef _MSC_VER
#define MSWSOCKDEF_INLINE __inline
#else
#define MSWSOCKDEF_INLINE extern inline /* GNU style */
#endif
#endif //(_WIN32_WINNT>=0x0600)

#ifndef ASSERT
#define MSWSOCKDEF_ASSERT_UNDEFINED
#define ASSERT(exp) ((VOID) 0)
#endif

#ifdef __cplusplus
extern "C" {
#endif

#if(_WIN32_WINNT >= 0x0600)

#ifdef _WS2DEF_

extern CONST UCHAR sockaddr_size[AF_MAX];

MSWSOCKDEF_INLINE
UCHAR
SOCKADDR_SIZE(_In_ ADDRESS_FAMILY af)
{
    return (UCHAR)((af < AF_MAX) ? sockaddr_size[af]
                                 : sockaddr_size[AF_UNSPEC]);
}

MSWSOCKDEF_INLINE
SCOPE_LEVEL
ScopeLevel(
    _In_ SCOPE_ID ScopeId
    )
{
    //
    // We can't declare the Level field of type SCOPE_LEVEL directly,
    // since it gets sign extended to be negative.  We can, however,
    // safely cast.
    //
    return (SCOPE_LEVEL)ScopeId.Level;
}

#endif // _WS2DEF_

#define SIO_SET_COMPATIBILITY_MODE  _WSAIOW(IOC_VENDOR,300)

typedef enum _WSA_COMPATIBILITY_BEHAVIOR_ID {
    WsaBehaviorAll = 0,
    WsaBehaviorReceiveBuffering,
    WsaBehaviorAutoTuning
} WSA_COMPATIBILITY_BEHAVIOR_ID, *PWSA_COMPATIBILITY_BEHAVIOR_ID;

typedef struct _WSA_COMPATIBILITY_MODE {
    WSA_COMPATIBILITY_BEHAVIOR_ID BehaviorId;
    ULONG TargetOsVersion;
} WSA_COMPATIBILITY_MODE, *PWSA_COMPATIBILITY_MODE;   

#endif //(_WIN32_WINNT>=0x0600)

typedef struct RIO_BUFFERID_t *RIO_BUFFERID, **PRIO_BUFFERID;
typedef struct RIO_CQ_t *RIO_CQ, **PRIO_CQ;
typedef struct RIO_RQ_t *RIO_RQ, **PRIO_RQ;

typedef struct _RIORESULT {
    LONG Status;
    ULONG BytesTransferred;
    ULONGLONG SocketContext;
    ULONGLONG RequestContext;
} RIORESULT, *PRIORESULT;

typedef struct _RIO_BUF {
    RIO_BUFFERID BufferId;
    ULONG Offset;
    ULONG Length;
} RIO_BUF, *PRIO_BUF;

#define RIO_MSG_DONT_NOTIFY           0x00000001
#define RIO_MSG_DEFER                 0x00000002
#define RIO_MSG_WAITALL               0x00000004
#define RIO_MSG_COMMIT_ONLY           0x00000008

#define RIO_INVALID_BUFFERID          ((RIO_BUFFERID)(ULONG_PTR)0xFFFFFFFF)
#define RIO_INVALID_CQ                ((RIO_CQ)0)
#define RIO_INVALID_RQ                ((RIO_RQ)0)

#define RIO_MAX_CQ_SIZE               0x8000000
#define RIO_CORRUPT_CQ                0xFFFFFFFF

typedef struct _RIO_CMSG_BUFFER {
    ULONG TotalLength;
    /* followed by CMSG_HDR */
} RIO_CMSG_BUFFER, *PRIO_CMSG_BUFFER;

#define RIO_CMSG_BASE_SIZE WSA_CMSGHDR_ALIGN(sizeof(RIO_CMSG_BUFFER))

#define RIO_CMSG_FIRSTHDR(buffer) \
    (((buffer)->TotalLength >= RIO_CMSG_BASE_SIZE)          \
        ? ((((buffer)->TotalLength - RIO_CMSG_BASE_SIZE) >= \
                sizeof(WSACMSGHDR))                         \
            ? (PWSACMSGHDR)((PUCHAR)(buffer) +              \
                RIO_CMSG_BASE_SIZE)                         \
            : (PWSACMSGHDR)NULL)                            \
        : (PWSACMSGHDR)NULL)

#define RIO_CMSG_NEXTHDR(buffer, cmsg)                      \
    ((cmsg) == NULL                                         \
        ? RIO_CMSG_FIRSTHDR(buffer)                         \
        : (((PUCHAR)(cmsg) +                                \
                    WSA_CMSGHDR_ALIGN((cmsg)->cmsg_len) +   \
                    sizeof(WSACMSGHDR)  >                   \
                (PUCHAR)(buffer) +                          \
                    (buffer)->TotalLength)                  \
            ? (PWSACMSGHDR)NULL                             \
            : (PWSACMSGHDR)((PUCHAR)(cmsg) +                \
                WSA_CMSGHDR_ALIGN((cmsg)->cmsg_len))))

#ifdef __cplusplus
}
#endif

#ifdef MSWSOCKDEF_ASSERT_UNDEFINED
#undef ASSERT
#endif
#endif  /* _MSWSOCKDEF_ */