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38 lines
1.1 KiB
38 lines
1.1 KiB
2 months ago
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/******************************************************************************
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*
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* Name: cpl_userfault.h
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* Project: CPL - Common Portability Library
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* Purpose: Use userfaultfd and VSIL to service page faults
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* Author: James McClain, <james.mcclain@gmail.com>
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*
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******************************************************************************
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* Copyright (c) 2018, Dr. James McClain <james.mcclain@gmail.com>
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*
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* SPDX-License-Identifier: MIT
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****************************************************************************/
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#ifndef CPL_USERFAULTFD
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#define CPL_USERFAULTFD
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#include <stdint.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <linux/userfaultfd.h>
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#define GDAL_UFFD_LIMIT "GDAL_UFFD_LIMIT"
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typedef struct cpl_uffd_context cpl_uffd_context;
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bool CPL_DLL CPLIsUserFaultMappingSupported();
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cpl_uffd_context CPL_DLL *CPLCreateUserFaultMapping(const char *pszFilename,
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void **ppVma,
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uint64_t *pnVmaSize);
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void CPL_DLL CPLDeleteUserFaultMapping(cpl_uffd_context *ctx);
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#endif
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