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31 lines
720 B
31 lines
720 B
#ifndef _MAP_H
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#define _MAP_H
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#ifdef __cplusplus
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extern "C" {
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#define restrict __restrict__
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#endif
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#include <stddef.h>
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typedef struct mmap {
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int fd;
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void* ptr;
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size_t len;
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} mmap_t;
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int open_and_map(const char* file, mmap_t* restrict ptr);
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int unmap_and_close(mmap_t map);
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int set_preload_map(mmap_t* restrict map);
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/// Undo a previous call to `set_preload_map()`.
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/// *freeing* (1 - yes, 0, no) - If the next operation on the map will be `unmap_and_close()`, advise the kernel to drop the mapped pages whenever it wants. Do not specify this if you will use the map again after this call.
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int unset_preload_map(mmap_t* restrict map, int freeing);
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#ifdef _cplusplus
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}
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#undef restrict
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#endif
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#endif /* _MAP_H */
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