SysV shared memory definitions for Linux/PA.
This commit is contained in:
Ulrich Drepper
parent
0d1ef15f59
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/* Copyright (C) 1995-1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _SYS_IPC_H
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# error "Never use <bits/ipc.h> directly; include <sys/ipc.h> instead."
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#endif
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#include <bits/types.h>
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#include <bits/wordsize.h>
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/* Mode bits for `msgget', `semget', and `shmget'. */
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#define IPC_CREAT 01000 /* Create key if key does not exist. */
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#define IPC_EXCL 02000 /* Fail if key exists. */
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#define IPC_NOWAIT 04000 /* Return error on wait. */
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/* Control commands for `msgctl', `semctl', and `shmctl'. */
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#define IPC_RMID 0 /* Remove identifier. */
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#define IPC_SET 1 /* Set `ipc_perm' options. */
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#define IPC_STAT 2 /* Get `ipc_perm' options. */
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#ifdef __USE_GNU
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# define IPC_INFO 3 /* See ipcs. */
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#endif
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/* Special key values. */
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#define IPC_PRIVATE ((__key_t) 0) /* Private key. */
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/* Data structure used to pass permission information to IPC operations. */
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struct ipc_perm
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{
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__key_t __key; /* Key. */
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__uid_t uid; /* Owner's user ID. */
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__gid_t gid; /* Owner's group ID. */
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__uid_t cuid; /* Creator's user ID. */
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__gid_t cgid; /* Creator's group ID. */
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#if __WORDSIZE == 32
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unsigned short int __pad1;
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unsigned short int mode; /* Read/write permission. */
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unsigned short int __pad2;
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#else
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__mode_t mode; /* Read/write permission. */
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unsigned short int __pad2;
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#endif
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unsigned short int __seq; /* Sequence number. */
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unsigned int __pad3;
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unsigned long long int __unused1;
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unsigned long long int __unused2;
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};
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/* Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _SYS_MSG_H
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# error "Never use <bits/msq.h> directly; include <sys/msg.h> instead."
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#endif
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#include <bits/types.h>
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#include <bits/wordsize.h>
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/* Define options for message queue functions. */
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#define MSG_NOERROR 010000 /* no error if message is too big */
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#ifdef __USE_GNU
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# define MSG_EXCEPT 020000 /* recv any msg except of specified type */
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#endif
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/* Types used in the structure definition. */
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typedef unsigned long int msgqnum_t;
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typedef unsigned long int msglen_t;
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/* Structure of record for one message inside the kernel.
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The type `struct msg' is opaque. */
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struct msqid_ds
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{
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struct ipc_perm msg_perm; /* structure describing operation permission */
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#if __WORDSIZE == 32
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unsigned int __pad1;
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#endif
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__time_t msg_stime; /* time of last msgsnd command */
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#if __WORDSIZE == 32
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unsigned int __pad2;
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#endif
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__time_t msg_rtime; /* time of last msgrcv command */
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#if __WORDSIZE == 32
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unsigned int __pad3;
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#endif
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__time_t msg_ctime; /* time of last change */
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unsigned long int __msg_cbytes; /* current number of bytes on queue */
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msgqnum_t msg_qnum; /* number of messages currently on queue */
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msglen_t msg_qbytes; /* max number of bytes allowed on queue */
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__pid_t msg_lspid; /* pid of last msgsnd() */
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__pid_t msg_lrpid; /* pid of last msgrcv() */
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unsigned long int __unused1;
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unsigned long int __unused2;
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};
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#ifdef __USE_MISC
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# define msg_cbytes __msg_cbytes
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/* ipcs ctl commands */
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# define MSG_STAT 11
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# define MSG_INFO 12
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/* buffer for msgctl calls IPC_INFO, MSG_INFO */
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struct msginfo
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{
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int msgpool;
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int msgmap;
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int msgmax;
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int msgmnb;
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int msgmni;
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int msgssz;
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int msgtql;
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unsigned short int msgseg;
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};
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#endif /* __USE_MISC */
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/* Copyright (C) 1995, 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _SYS_SEM_H
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# error "Never include <bits/sem.h> directly; use <sys/sem.h> instead."
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#endif
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#include <sys/types.h>
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#include <bits/wordsize.h>
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/* Flags for `semop'. */
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#define SEM_UNDO 0x1000 /* undo the operation on exit */
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/* Commands for `semctl'. */
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#define GETPID 11 /* get sempid */
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#define GETVAL 12 /* get semval */
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#define GETALL 13 /* get all semval's */
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#define GETNCNT 14 /* get semncnt */
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#define GETZCNT 15 /* get semzcnt */
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#define SETVAL 16 /* set semval */
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#define SETALL 17 /* set all semval's */
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/* Data structure describing a set of semaphores. */
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struct semid_ds
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{
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struct ipc_perm sem_perm; /* operation permission struct */
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#if __WORDSIZE == 32
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unsigned int __pad1;
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#endif
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__time_t sem_otime; /* last semop() time */
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#if __WORDSIZE == 32
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unsigned int __pad2;
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#endif
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__time_t sem_ctime; /* last time changed by semctl() */
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unsigned long int sem_nsems; /* number of semaphores in set */
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unsigned long int __unused1;
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unsigned long int __unused2;
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};
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/* The user should define a union like the following to use it for arguments
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for `semctl'.
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union semun
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{
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int val; <= value for SETVAL
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struct semid_ds *buf; <= buffer for IPC_STAT & IPC_SET
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unsigned short int *array; <= array for GETALL & SETALL
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struct seminfo *__buf; <= buffer for IPC_INFO
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};
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Previous versions of this file used to define this union but this is
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incorrect. One can test the macro _SEM_SEMUN_UNDEFINED to see whether
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one must define the union or not. */
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#define _SEM_SEMUN_UNDEFINED 1
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#ifdef __USE_MISC
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/* ipcs ctl cmds */
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# define SEM_STAT 18
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# define SEM_INFO 19
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struct seminfo
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{
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int semmap;
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int semmni;
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int semmns;
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int semmnu;
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int semmsl;
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int semopm;
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int semume;
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int semusz;
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int semvmx;
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int semaem;
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};
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#endif /* __USE_MISC */
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@ -0,0 +1,103 @@
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/* Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _SYS_SHM_H
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# error "Never include <bits/shm.h> directly; use <sys/shm.h> instead."
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#endif
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#include <bits/types.h>
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#include <bits/wordsize.h>
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/* Permission flag for shmget. */
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#define SHM_R 0400 /* or S_IRUGO from <linux/stat.h> */
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#define SHM_W 0200 /* or S_IWUGO from <linux/stat.h> */
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/* Flags for `shmat'. */
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#define SHM_RDONLY 010000 /* attach read-only else read-write */
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#define SHM_RND 020000 /* round attach address to SHMLBA */
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#define SHM_REMAP 040000 /* take-over region on attach */
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/* Commands for `shmctl'. */
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#define SHM_LOCK 11 /* lock segment (root only) */
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#define SHM_UNLOCK 12 /* unlock segment (root only) */
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/* Type to count number of attaches. */
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typedef unsigned long int shmatt_t;
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/* Data structure describing a set of semaphores. */
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struct shmid_ds
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{
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struct ipc_perm shm_perm; /* operation permission struct */
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#if __WORDSIZE == 32
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unsigned int __pad1;
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#endif
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__time_t shm_atime; /* time of last shmat() */
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#if __WORDSIZE == 32
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unsigned int __pad2;
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#endif
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__time_t shm_dtime; /* time of last shmdt() */
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#if __WORDSIZE == 32
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unsigned int __pad3;
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#endif
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__time_t shm_ctime; /* time of last change by shmctl() */
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#if __WORDSIZE == 32
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unsigned int __pad4;
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#endif
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size_t shm_segsz; /* size of segment in bytes */
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__pid_t shm_cpid; /* pid of creator */
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__pid_t shm_lpid; /* pid of last shmop */
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shmatt_t shm_nattch; /* number of current attaches */
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unsigned long int __unused1;
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unsigned long int __unused2;
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};
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#ifdef __USE_MISC
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/* ipcs ctl commands */
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# define SHM_STAT 13
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# define SHM_INFO 14
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/* shm_mode upper byte flags */
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# define SHM_DEST 01000 /* segment will be destroyed on last detach */
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# define SHM_LOCKED 02000 /* segment will not be swapped */
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struct shminfo
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{
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unsigned long shmmax;
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unsigned long shmmin;
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unsigned long shmmni;
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unsigned long shmseg;
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unsigned long shmall;
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unsigned long __unused1;
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unsigned long __unused2;
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unsigned long __unused3;
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unsigned long __unused4;
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};
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struct shm_info
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{
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int used_ids;
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unsigned long int shm_tot; /* total allocated shm */
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unsigned long int shm_rss; /* total resident shm */
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unsigned long int shm_swp; /* total swapped shm */
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unsigned long int swap_attempts;
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unsigned long int swap_successes;
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};
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#endif /* __USE_MISC */
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