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28 lines
437 B
C
28 lines
437 B
C
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#include "sc_mmap.h"
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#include <assert.h>
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#include <stdio.h>
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int main(void)
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{
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int rc;
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struct sc_mmap mmap;
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rc = sc_mmap_init(&mmap, "x.txt", O_RDWR | O_CREAT | O_TRUNC,
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PROT_READ | PROT_WRITE, MAP_SHARED, 0, 15000);
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assert(rc == 0);
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void *ptr = mmap.ptr;
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size_t mapped_len = mmap.len;
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printf("mapped len : %zu \n", mapped_len);
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*(char *) ptr = 't';
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sc_mmap_msync(&mmap, 0, 4096);
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sc_mmap_term(&mmap);
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return 0;
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}
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