39 lines
792 B
C
39 lines
792 B
C
#include "helpers.h"
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#include <sys/mman.h>
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#include <assert.h>
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#include <fcntl.h>
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int main(int argc, char **argv)
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{
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/* inert map (never modified) */
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char *inert = mmap(NULL, 16 KB,
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PROT_READ|PROT_WRITE,
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MAP_ANONYMOUS|MAP_PRIVATE,
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-1, 0);
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/* anonymous, private mmap */
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char *anon_priv = mmap(NULL, 32 KB,
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PROT_READ|PROT_WRITE,
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MAP_ANONYMOUS|MAP_PRIVATE,
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-1, 0);
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randomize(anon_priv, 32 KB);
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/* anonymous, shared map */
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char *anon_shared = mmap(NULL, 64 KB,
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PROT_READ|PROT_WRITE,
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MAP_ANONYMOUS|MAP_SHARED,
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-1, 0);
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randomize(anon_shared, 64 KB);
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/* private, file-backed map */
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int fd = open("data/256k", O_RDWR);
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assert(fd >= 0);
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char *file = mmap(NULL, 256 KB,
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PROT_READ|PROT_WRITE,
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MAP_PRIVATE,
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fd, 0);
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randomize(file, 128 KB);
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return interlude();
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}
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