diff --git a/src/tests/vm/mmap-close.c b/src/tests/vm/mmap-close.c new file mode 100644 index 0000000000000000000000000000000000000000..d016ee304cdd2ddc86ae399d744866dbe8caf9f7 --- /dev/null +++ b/src/tests/vm/mmap-close.c @@ -0,0 +1,27 @@ +/* Verifies that memory mappings persist after file close. */ + +#include <string.h> +#include <syscall.h> +#include "tests/vm/sample.inc" +#include "tests/arc4.h" +#include "tests/lib.h" +#include "tests/main.h" + +#define ACTUAL ((void *) 0x10000000) + +void +test_main (void) +{ + int handle; + mapid_t map; + + CHECK ((handle = open ("sample.txt")) > 1, "open \"sample.txt\""); + CHECK ((map = mmap (handle, ACTUAL)) != MAP_FAILED, "mmap \"sample.txt\""); + + close (handle); + + if (memcmp (ACTUAL, sample, strlen (sample))) + fail ("read of mmap'd file reported bad data"); + + munmap (map); +}