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56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/**
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* Looking Glass
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* Copyright © 2017-2026 The Looking Glass Authors
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* https://looking-glass.io
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _H_LG_COMMON_IVSHMEM_
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#define _H_LG_COMMON_IVSHMEM_
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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typedef enum IVSHMEMCacheMode
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{
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/* Producers normally use write-combined mappings; consumers use cached.
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* Platforms without selectable cache modes ignore this policy. */
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IVSHMEM_CACHE_MODE_NONCACHED = 0,
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IVSHMEM_CACHE_MODE_CACHED = 1,
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IVSHMEM_CACHE_MODE_WRITECOMBINED = 2,
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}
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IVSHMEMCacheMode;
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struct IVSHMEM
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{
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size_t size;
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void * mem;
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// internal use
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void * opaque;
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};
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void ivshmemOptionsInit(void);
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bool ivshmemInit(struct IVSHMEM * dev);
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bool ivshmemOpen(struct IVSHMEM * dev, IVSHMEMCacheMode cacheMode);
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bool ivshmemOpenDev(struct IVSHMEM * dev, const char * shmDev,
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IVSHMEMCacheMode cacheMode);
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void ivshmemClose(struct IVSHMEM * dev);
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void ivshmemFree(struct IVSHMEM * dev);
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#endif
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