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55e2cb41f2
unused in one go. From the original PR: I've observed that linux apps running under the linuxulator have a habit of leaving behind shared memory segments which are unused, but which eventually cause the system to run out of free segments and these apps will stop working. ipcrm(1) currently only allows removal of unused message queues, shared memory segments and semaphores on an individual basis, or those having a matching (non-zero) key. However it would often be convenient to just do a complete cleanup of everything, usually as root. PR: bin/118292 Submitted by: Callum Gibson <callumgibson@optusnet.com.au> Not reviewed by: grog@ Approved by: grog@
72 lines
2.5 KiB
C
72 lines
2.5 KiB
C
/*
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* Copyright (c) 1994 SigmaSoft, Th. Lockert <tholo@sigmasoft.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* The split of ipcs.c into ipcs.c and ipc.c to accomodate the
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* changes in ipcrm.c was done by Edwin Groothuis <edwin@FreeBSD.org>
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*
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* $FreeBSD$
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*/
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/* Part of struct nlist symbols[] */
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#define X_SEMA 0
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#define X_SEMINFO 1
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#define X_MSGINFO 2
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#define X_MSQIDS 3
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#define X_SHMINFO 4
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#define X_SHMSEGS 5
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#define SHMINFO 1
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#define SHMTOTAL 2
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#define MSGINFO 4
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#define MSGTOTAL 8
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#define SEMINFO 16
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#define SEMTOTAL 32
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#define IPC_TO_STR(x) (x == 'Q' ? "msq" : (x == 'M' ? "shm" : "sem"))
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#define IPC_TO_STRING(x) (x == 'Q' ? "message queue" : \
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(x == 'M' ? "shared memory segment" : "semaphore"))
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/* SysCtlGatherStruct structure. */
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struct scgs_vector {
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const char *sysctl;
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off_t offset;
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size_t size;
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};
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void kget(int idx, void *addr, size_t size);
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void sysctlgatherstruct(void *addr, size_t size, struct scgs_vector *vec);
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extern int use_sysctl;
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extern struct nlist symbols[];
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extern kvm_t *kd;
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extern struct semid_kernel *sema;
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extern struct seminfo seminfo;
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extern struct msginfo msginfo;
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extern struct msqid_kernel *msqids;
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extern struct shminfo shminfo;
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extern struct shmid_kernel *shmsegs;
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