Linux/Alpha SysV shm definitions.

diff --git a/sysdeps/unix/sysv/linux/alpha/bits/shm.h b/sysdeps/unix/sysv/linux/alpha/bits/shm.h
new file mode 100644 (file)
index 0000000..4e29764
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/alpha/bits/shm.h
@@ -0,0 +1,113 @@
+/* Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_SHM_H
+# error "Never include <bits/shm.h> directly; use <sys/shm.h> instead."
+#endif
+
+#include <sys/types.h>
+
+/* Permission flag for shmget.  */
+#define SHM_R          0400            /* or S_IRUGO from <linux/stat.h> */
+#define SHM_W          0200            /* or S_IWUGO from <linux/stat.h> */
+
+/* Flags for `shmat'.  */
+#define SHM_RDONLY     010000          /* attach read-only else read-write */
+#define SHM_RND                020000          /* round attach address to SHMLBA */
+#define SHM_REMAP      040000          /* take-over region on attach */
+
+/* Commands for `shmctl'.  */
+#define SHM_LOCK       11              /* lock segment (root only) */
+#define SHM_UNLOCK     12              /* unlock segment (root only) */
+
+
+/* Data structure describing a set of semaphores.  */
+struct shmid_ds
+  {
+    struct ipc_perm shm_perm;          /* operation permission struct */
+    size_t shm_segsz;                  /* size of segment in bytes */
+    __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() */
+    pid_t shm_cpid;                    /* pid of creator */
+    pid_t shm_lpid;                    /* pid of last shmop */
+    unsigned long int shm_nattch;      /* number of current attaches */
+    unsigned long int __unused1;
+    unsigned long int __unused2;
+  };
+
+#ifdef __LIBC_IPC_INTERNAL
+struct __old_shmid_ds
+  {
+    struct __old_ipc_perm shm_perm;    /* operation permission struct */
+    int shm_segsz;                     /* size of segment in bytes */
+    __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() */
+    __ipc_pid_t shm_cpid;              /* pid of creator */
+    __ipc_pid_t shm_lpid;              /* pid of last shmop */
+    unsigned short int shm_nattch;     /* number of current attaches */
+    unsigned short int __shm_npages;   /* size of segment (pages) */
+    unsigned long int *__shm_pages;    /* array of ptrs to frames -> SHMMAX */
+    struct vm_area_struct *__attaches; /* descriptors for attaches */
+  };
+#endif
+
+#ifdef __USE_MISC
+
+/* ipcs ctl commands */
+# define SHM_STAT      13
+# define SHM_INFO      14
+
+/* shm_mode upper byte flags */
+# define SHM_DEST      01000   /* segment will be destroyed on last detach */
+# define SHM_LOCKED    02000   /* segment will not be swapped */
+
+struct shminfo
+  {
+    unsigned long int shmmax;
+    unsigned long int shmmin;
+    unsigned long int shmmni;
+    unsigned long int shmseg;
+    unsigned long int shmall;
+    unsigned long int __unused1;
+    unsigned long int __unused2;
+    unsigned long int __unused3;
+    unsigned long int __unused4;
+  };
+
+struct __old_shminfo
+  {
+    int shmmax;
+    int shmmin;
+    int shmmni;
+    int shmseg;
+    int shmall;
+  };
+
+struct shm_info
+  {
+    int used_ids;
+    unsigned long int shm_tot; /* total allocated shm */
+    unsigned long int shm_rss; /* total resident shm */
+    unsigned long int shm_swp; /* total swapped shm */
+    unsigned long int swap_attempts;
+    unsigned long int swap_successes;
+  };
+
+#endif /* __USE_MISC */