CS318 - Pintos
Pintos source browser for JHU CS318 course
close-twice.c
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1 /** Opens a file and then tries to close it twice. The second
2  close must either fail silently or terminate with exit code
3  -1. */
4 
5 #include <syscall.h>
6 #include "tests/lib.h"
7 #include "tests/main.h"
8 
9 void
10 test_main (void)
11 {
12  int handle;
13  CHECK ((handle = open ("sample.txt")) > 1, "open \"sample.txt\"");
14  msg ("close \"sample.txt\"");
15  close (handle);
16  msg ("close \"sample.txt\" again");
17  close (handle);
18 }
lib.h
CHECK
#define CHECK(SUCCESS,...)
Takes an expression to test for SUCCESS and a message, which may include printf-style arguments.
Definition: lib.h:29
test_main
void test_main(void)
Opens a file and then tries to close it twice.
Definition: close-twice.c:10
open
int open(const char *file)
Definition: syscall.c:103
main.h
close
void close(int fd)
Definition: syscall.c:139
msg
void msg(const char *format,...)
Definition: lib.c:28
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