86 lines
1.7 KiB
C++
86 lines
1.7 KiB
C++
/* cygserver_sem.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_SEM_H__
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#define __CYGSERVER_SEM_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/sem.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_sem : 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 semop_t
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{
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SEMOP_semctl,
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SEMOP_semget,
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SEMOP_semop
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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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semop_t semop;
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proc ipcblk;
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union
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{
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struct semctl_args ctlargs;
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struct semget_args getargs;
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struct semop_args opargs;
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};
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} in;
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union {
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int ret;
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} out;
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} _parameters;
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#ifndef __INSIDE_CYGWIN__
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client_request_sem ();
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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_sem (int, int, int, union semun *); // semctl
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client_request_sem (key_t, int, int); // semget
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client_request_sem (int, struct sembuf *, size_t); // semop
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#endif
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int retval () const { return msglen () ? _parameters.out.ret : -1; }
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};
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#ifndef __INSIDE_CYGWIN__
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int seminit ();
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int semunload ();
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void semexit_myhook(void *arg, struct proc *p);
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int semctl (struct thread *, struct semctl_args *);
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int semget (struct thread *, struct semget_args *);
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int semop (struct thread *, struct semop_args *);
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#endif
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#endif /* __CYGSERVER_SEM_H__ */
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