90 lines
1.9 KiB
C
90 lines
1.9 KiB
C
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/* cygserver_msg.h: Single unix specification IPC interface for Cygwin.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#ifndef __CYGSERVER_MSG_H__
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#define __CYGSERVER_MSG_H__
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#include <sys/types.h>
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#include <sys/sysproto.h>
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#ifndef _KERNEL
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#define _KERNEL 1
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#endif
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#include <cygwin/msg.h>
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#include "cygserver.h"
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#include "cygserver_ipc.h"
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#ifndef __INSIDE_CYGWIN__
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class transport_layer_base;
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class process_cache;
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#endif
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class client_request_msg : public client_request
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{
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friend class client_request;
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public:
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enum msgop_t
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{
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MSGOP_msgctl,
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MSGOP_msgget,
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MSGOP_msgrcv,
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MSGOP_msgsnd
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};
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private:
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union
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{
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struct
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{
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msgop_t msgop;
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proc ipcblk;
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union
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{
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struct msgctl_args ctlargs;
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struct msgget_args getargs;
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struct msgrcv_args rcvargs;
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struct msgsnd_args sndargs;
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};
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} in;
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union {
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int ret;
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ssize_t rcv;
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} out;
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} _parameters;
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#ifndef __INSIDE_CYGWIN__
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client_request_msg ();
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virtual void serve (transport_layer_base *, process_cache *);
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#endif
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public:
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#ifdef __INSIDE_CYGWIN__
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client_request_msg (int, int, struct msqid_ds *); // msgctl
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client_request_msg (key_t, int); // msgget
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client_request_msg (int, void *, size_t, long, int); // msgrcv
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client_request_msg (int, const void *, size_t, int); // msgsnd
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#endif
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int retval () const { return msglen () ? _parameters.out.ret : -1; }
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ssize_t rcvval () const { return _parameters.out.rcv; }
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};
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#ifndef __INSIDE_CYGWIN__
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int msginit ();
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int msgunload ();
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int msgctl (struct thread *, struct msgctl_args *);
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int msgget (struct thread *, struct msgget_args *);
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int msgsnd (struct thread *, struct msgsnd_args *);
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int msgrcv (struct thread *, struct msgrcv_args *);
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#endif
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#endif /* __CYGSERVER_MSG_H__ */
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