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OS/pintos-env/pintos/tests/userprog/close-twice.c

18 lines
421 B
C
Executable file

/* Opens a file and then tries to close it twice. The second
close must either fail silently or terminate with exit code
-1. */
#include <syscall.h>
#include "tests/lib.h"
#include "tests/main.h"
void
test_main (void)
{
int handle;
CHECK ((handle = open ("sample.txt")) > 1, "open \"sample.txt\"");
msg ("close \"sample.txt\"");
close (handle);
msg ("close \"sample.txt\" again");
close (handle);
}