93 lines
1.9 KiB
C++
Executable File
93 lines
1.9 KiB
C++
Executable File
/* cygserver_shm.h
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Copyright 2001, 2002 Red Hat Inc.
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Written by Robert Collins <rbtcollins@hotmail.com>
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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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#include <sys/types.h>
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#include "cygwin/cygserver_transport.h"
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#include "cygwin/cygserver.h"
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#define SHM_CREATE 0
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#define SHM_REATTACH 1
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#define SHM_ATTACH 2
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#define SHM_DETACH 3
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#define SHM_DEL 4
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class client_request_shm : public client_request
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{
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public:
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#ifndef __INSIDE_CYGWIN__
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virtual void serve (transport_layer_base *conn, process_cache *cache);
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#endif
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client_request_shm (key_t, size_t, int, char psdbuf[4096], pid_t);
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client_request_shm ();
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client_request_shm (int, int, pid_t);
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client_request_shm (int, int);
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union {
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struct {int type; pid_t pid; int shm_id; key_t key; size_t size; int shmflg; char sd_buf[4096];} in;
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struct {int shm_id; HANDLE filemap; HANDLE attachmap; key_t key;} out;
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} parameters;
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};
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#ifndef __INSIDE_CYGWIN__
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class shm_cleanup : cleanup_routine
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{
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public:
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virtual void cleanup (long winpid);
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};
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#endif
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#if 0
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class _shmattach {
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public:
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void *data;
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class _shmattach *next;
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};
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class shmid_ds {
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public:
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struct ipc_perm shm_perm;
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size_t shm_segsz;
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pid_t shm_lpid;
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pid_t shm_cpid;
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shmatt_t shm_nattch;
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time_t shm_atime;
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time_t shm_dtime;
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time_t shm_ctime;
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HANDLE filemap;
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HANDLE attachmap;
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void *mapptr;
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class _shmattach *attachhead;
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};
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class shmnode {
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public:
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class shmid_ds * shmid;
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class shmnode *next;
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key_t key;
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};
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//....
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struct shmid_ds {
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struct ipc_perm shm_perm;
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size_t shm_segsz;
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pid_t shm_lpid;
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pid_t shm_cpid;
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shmatt_t shm_nattch;
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time_t shm_atime;
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time_t shm_dtime;
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time_t shm_ctime;
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};
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void *shmat(int, const void *, int);
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int shmctl(int, int, struct shmid_ds *);
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int shmdt(const void *);
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int shmget(key_t, size_t, int);
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#endif
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