newlib/winsup/cygwin/cygserver_msg.h

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* cygserver.h (client_request::request_code_t): Add CYGSERVER_REQUEST_MSG and CYGSERVER_REQUEST_SEM. (admininstrator_group_sid): Add extern declaration. * cygserver_ipc.h: Rewrite. * cygserver_msg.h: New file. * cygserver_sem.h: New file. * cygserver_shm.h: More or less rewrite. * cygwin.din: Add msgctl, msgget, msgrcv, msgsnd, semctl, semget and semop. * msg.cc: Rewrite. * safe_memory.h: Remove. * sem.cc: Rewrite. * shm.cc: Rewrite. * include/cygwin/ipc.h: Use appropriate guard. (struct ipc_perm): Add seq. (IPCID_TO_IX): New define from BSD. (IPCID_TO_SEQ): Ditto. (IXSEQ_TO_IPCID): Ditto. (IPC_R): Ditto. (IPC_W): Ditto. (IPC_M): Ditto. * include/cygwin/msg.h: Use appropriate guard. #ifdef _KERNEL all stuff not explicitely defined by SUSv3. Use signed types in structs to match types used in BSD. (msgqnum_t): Define unsigned. (msglen_t): Ditto. (struct msqid_ds): Add msg_first and msg_last. (struct msginfo): Remove msgpool. Add msgssz and msgseg. * include/cygwin/sem.h: Use appropriate guard. #ifdef _KERNEL all stuff not explicitely defined by SUSv3. Use signed types in structs to match types used in BSD. (SEM_UNDO): Define appropriately. (struct semid_ds): Add sem_base. (struct seminfo): Add semmap and semusz. (SEM_A): New define from BSD. (SEM_R): Ditto. (SEM_ALLOC): Ditto. (union semun): Define. * include/cygwin/shm.h: Use appropriate guard. #ifdef _KERNEL all stuff not explicitely defined by SUSv3. Use signed types in structs to match types used in BSD. (SHMLBA): Define using cygwin_internal(CW_GET_SHMLBA) call. (struct shmid_ds): Add shm_internal. (struct shm_info): Rename shm_ids to used_ids as in BSD. Add define for shm_ids. * include/cygwin/sysproto.h: New file. * include/cygwin/version.h: Bump API minor number. * include/sys/ipc.h: New file. * include/sys/msg.h: New file. * include/sys/queue.h: New file from BSD. * include/sys/sem.h: New file. * include/sys/shm.h: New file. * include/sys/sysproto.h: New file.
2003-11-19 19:50:23 +01:00
/* cygserver_msg.h: Single unix specification IPC interface for Cygwin.
Copyright 2003 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 __CYGSERVER_MSG_H__
#define __CYGSERVER_MSG_H__
#include <sys/types.h>
#include <sys/sysproto.h>
#ifndef _KERNEL
#define _KERNEL 1
#endif
#include <cygwin/msg.h>
#include "cygserver.h"
#include "cygserver_ipc.h"
#ifndef __INSIDE_CYGWIN__
class transport_layer_base;
class process_cache;
#endif
class client_request_msg : public client_request
{
friend class client_request;
public:
enum msgop_t
{
MSGOP_msgctl,
MSGOP_msgget,
MSGOP_msgrcv,
MSGOP_msgsnd
};
private:
union
{
struct
{
msgop_t msgop;
proc ipcblk;
union
{
struct msgctl_args ctlargs;
struct msgget_args getargs;
struct msgrcv_args rcvargs;
struct msgsnd_args sndargs;
};
} in;
union {
int ret;
ssize_t rcv;
} out;
} _parameters;
#ifndef __INSIDE_CYGWIN__
client_request_msg ();
virtual void serve (transport_layer_base *, process_cache *);
#endif
public:
#ifdef __INSIDE_CYGWIN__
client_request_msg (int, int, struct msqid_ds *); // msgctl
client_request_msg (key_t, int); // msgget
client_request_msg (int, void *, size_t, long, int); // msgrcv
client_request_msg (int, const void *, size_t, int); // msgsnd
#endif
int retval (void) const { return _parameters.out.ret; }
ssize_t rcvval (void) const { return _parameters.out.rcv; }
};
#ifndef __INSIDE_CYGWIN__
int msginit (void);
int msgunload (void);
int msgctl (struct thread *, struct msgctl_args *);
int msgget (struct thread *, struct msgget_args *);
int msgsnd (struct thread *, struct msgsnd_args *);
int msgrcv (struct thread *, struct msgrcv_args *);
#endif
#endif /* __CYGSERVER_MSG_H__ */