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512e35bea6
* Updated GDAL version to 2.4.1 * Add vtune performance commands * Add Nvtools performance commands * Add warning if GDAL dataset could not be loaded
53 lines
2.0 KiB
C++
53 lines
2.0 KiB
C++
/******************************************************************************
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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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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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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 CPLIsUserFaultMappingSupported();
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cpl_uffd_context * CPLCreateUserFaultMapping(const char * pszFilename, void ** ppVma, uint64_t * pnVmaSize);
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void CPLDeleteUserFaultMapping(cpl_uffd_context * ctx);
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#endif
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