--- a/epoc32/include/stdapis/sys/shm.h Tue Nov 24 13:55:44 2009 +0000
+++ b/epoc32/include/stdapis/sys/shm.h Tue Mar 16 16:12:26 2010 +0000
@@ -1,1 +1,180 @@
-shm.h
+/* $FreeBSD: src/sys/sys/shm.h,v 1.23 2005/04/02 12:33:36 das Exp $ */
+/* $NetBSD: shm.h,v 1.15 1994/06/29 06:45:17 cgd Exp $ */
+
+/*-
+ * Copyright (c) 1994 Adam Glass
+ *© Portions copyright (c) 2006 Nokia Corporation. All rights reserved.
+ *© Portions copyright (c) 2006 Symbian Software Ltd. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 4. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * As defined+described in "X/Open System Interfaces and Headers"
+ * Issue 4, p. XXX
+ */
+
+#ifndef _SYS_SHM_H_
+#define _SYS_SHM_H_
+
+#include <sys/cdefs.h>
+#include <sys/ipc.h>
+#include <sys/_types.h>
+
+#define SHM_RDONLY 010000 /* Attach read-only (else read-write) */
+#define SHM_RND 020000 /* Round attach address to SHMLBA */
+#define SHMLBA PAGE_SIZE /* Segment low boundary address multiple */
+
+/* "official" access mode definitions; somewhat braindead since you have
+ to specify (SHM_* >> 3) for group and (SHM_* >> 6) for world permissions */
+#define SHM_R (IPC_R)
+#define SHM_W (IPC_W)
+
+/* predefine tbd *LOCK shmctl commands */
+#define SHM_LOCK 11
+#define SHM_UNLOCK 12
+
+/* ipcs shmctl commands */
+#define SHM_STAT 13
+#define SHM_INFO 14
+
+#ifndef _PID_T_DECLARED
+typedef __pid_t pid_t;
+#define _PID_T_DECLARED
+#endif
+
+#ifndef _TIME_T_DECLARED
+typedef __time_t time_t;
+#define _TIME_T_DECLARED
+#endif
+
+#ifndef _SIZE_T_DECLARED
+typedef __size_t size_t;
+#define _SIZE_T_DECLARED
+#endif
+
+struct shmid_ds {
+ struct ipc_perm shm_perm; /* operation permission structure */
+ int shm_segsz; /* size of segment in bytes */
+ pid_t shm_lpid; /* process ID of last shared memory op */
+ pid_t shm_cpid; /* process ID of creator */
+ short shm_nattch; /* number of current attaches */
+ time_t shm_atime; /* time of last shmat() */
+ time_t shm_dtime; /* time of last shmdt() */
+ time_t shm_ctime; /* time of last change by shmctl() */
+ void *shm_internal; /* sysv stupidity */
+};
+
+#ifdef _KERNEL
+
+/*
+ * System 5 style catch-all structure for shared memory constants that
+ * might be of interest to user programs. Do we really want/need this?
+ */
+struct shminfo {
+ int shmmax, /* max shared memory segment size (bytes) */
+ shmmin, /* min shared memory segment size (bytes) */
+ shmmni, /* max number of shared memory identifiers */
+ shmseg, /* max shared memory segments per process */
+ shmall; /* max amount of shared memory (pages) */
+};
+
+/*
+ * Add a kernel wrapper to the shmid_ds struct so that private info (like the
+ * MAC label) can be added to it, without changing the user interface.
+ */
+struct shmid_kernel {
+ struct shmid_ds u;
+ struct label *label; /* MAC label */
+};
+
+extern struct shminfo shminfo;
+
+struct shm_info {
+ int used_ids;
+ unsigned long shm_tot;
+ unsigned long shm_rss;
+ unsigned long shm_swp;
+ unsigned long swap_attempts;
+ unsigned long swap_successes;
+};
+
+struct thread;
+struct proc;
+struct vmspace;
+
+#else /* !_KERNEL */
+
+#include <sys/cdefs.h>
+
+#ifndef _SIZE_T_DECLARED
+typedef __size_t size_t;
+#define _SIZE_T_DECLARED
+#endif
+
+// FUNCTION PROTOTYPES
+
+
+// FORWARD DECLARATIONS
+
+
+// CLASS/STRUCT/FUNCTION DECLARATION
+__BEGIN_DECLS
+/*
+* Get shared memory identifier using the IPC key generated by ftok.
+*/
+
+IMPORT_C int shmget(key_t key, int size, int shmflg);
+
+
+/*
+* Attaches the shared memory segment associated with the shared memory identifier
+* specified by shmid to the address space of the calling process.
+*/
+
+IMPORT_C void* shmat(int shmid, const void *shmaddr, int shmflg);
+
+
+/*
+* Detaches the shared memory segment located at the address specified by shmaddr
+* from the address space of the calling process.
+*/
+
+IMPORT_C int shmdt(const void *shmaddr);
+
+
+/*
+* Provides a variety of shared memory control operations as specified by cmd.
+*/
+
+IMPORT_C int shmctl(int shmid, int cmd, struct shmid_ds *buf);
+
+
+__END_DECLS
+
+#endif /* !_KERNEL */
+
+#endif // SHM_H
+
+// End of File