35 lines
969 B
C
35 lines
969 B
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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#include <stdbool.h>
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#include <sys/stat.h>
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/* One context per object type, plus one of the header, plus one "additional" one */
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#define MMAP_CACHE_MAX_CONTEXTS 9
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typedef struct MMapCache MMapCache;
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typedef struct MMapFileDescriptor MMapFileDescriptor;
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MMapCache* mmap_cache_new(void);
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MMapCache* mmap_cache_ref(MMapCache *m);
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MMapCache* mmap_cache_unref(MMapCache *m);
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int mmap_cache_get(
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MMapCache *m,
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MMapFileDescriptor *f,
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int prot,
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unsigned context,
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bool keep_always,
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uint64_t offset,
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size_t size,
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struct stat *st,
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void **ret,
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size_t *ret_size);
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MMapFileDescriptor * mmap_cache_add_fd(MMapCache *m, int fd);
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void mmap_cache_free_fd(MMapCache *m, MMapFileDescriptor *f);
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unsigned mmap_cache_get_hit(MMapCache *m);
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unsigned mmap_cache_get_missed(MMapCache *m);
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bool mmap_cache_got_sigbus(MMapCache *m, MMapFileDescriptor *f);
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