Win64 patch 3/6 (resend)

[Ge van Geldorp]

> From: Alexandre Julliard [mailto:julliard at winehq.org] 
> 
> The best way would be to fix the few offending requests so 
> that we don't need to make every single request larger.

Not sure I understand what you mean. If I look at struct
send_message_request, it's current 64-bit layout is:

struct send_message_request
{
    struct request_header
    {
        int          req;           /* 4 bytes */
                                    /* 4 bytes padding */
        size_t       request_size;  /* 8 bytes */
        size_t       reply_size;    /* 8 bytes */
    } __header;
    thread_id_t     id;             /* 4 bytes */
    int             type;           /* 4 bytes */
    int             flags;          /* 4 bytes */
                                    /* 4 bytes padding */
    user_handle_t   win;            /* 8 bytes */
    unsigned int    msg;            /* 4 bytes */
                                    /* 4 bytes padding */
    unsigned long   wparam;         /* 8 bytes */
    unsigned long   lparam;         /* 8 bytes */
    int             x;              /* 4 bytes */
    int             y;              /* 4 bytes */
    unsigned int    time;           /* 4 bytes */
    unsigned int    info;           /* 4 bytes */
    int             timeout;        /* 4 bytes */
                                    /* 4 bytes padding */
    void*           callback;       /* 8 bytes */
    /* VARARG(data,bytes); */
};
Total 104 bytes.

Even if we rearrange the fields so minimum padding is required:

struct send_message_request
{
    struct request_header
    {
        int          req;           /* 4 bytes */
                                    /* 4 bytes padding */
        size_t       request_size;  /* 8 bytes */
        size_t       reply_size;    /* 8 bytes */
    } __header;
    user_handle_t   win;            /* 8 bytes */
    unsigned long   wparam;         /* 8 bytes */
    unsigned long   lparam;         /* 8 bytes */
    void*           callback;       /* 8 bytes */
    thread_id_t     id;             /* 4 bytes */
    int             type;           /* 4 bytes */
    int             flags;          /* 4 bytes */
    unsigned int    msg;            /* 4 bytes */
    int             x;              /* 4 bytes */
    int             y;              /* 4 bytes */
    unsigned int    time;           /* 4 bytes */
    unsigned int    info;           /* 4 bytes */
    int             timeout;        /* 4 bytes */
                                    /* 4 bytes padding */
    /* VARARG(data,bytes); */
};
Total bytes required: 96.

The current request_max_size is

struct request_max_size
{
    int pad[16];
};

which is only 64 bytes. I'm not sure what you want changed in
request_send_message to make it fit in 64 bytes?

Ge van Geldorp.