15 lines
402 B
C
15 lines
402 B
C
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#include <common.h>
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#include <syscall.h>
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void* buffer_init(usize size)
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{
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i32 fd = memfd_create("buffer", 0);
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ftruncate(fd, size);
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void* ptr = mmap(null, 2 * size, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
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mmap( ptr, size, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, fd, 0);
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mmap((c8*)ptr + size, size, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, fd, 0);
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return ptr;
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}
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