Pintos: pintos/src/tests/userprog/write-boundary.c Source File

00001 /* Writes data spanning two pages in virtual address space,
00002    which must succeed. */
00003 
00004 #include <string.h>
00005 #include <syscall.h>
00006 #include "tests/userprog/boundary.h"
00007 #include "tests/userprog/sample.inc"
00008 #include "tests/lib.h"
00009 #include "tests/main.h"
00010 
00011 void
00012 test_main (void) 
00013 {
00014   int handle;
00015   int byte_cnt;
00016   char *sample_p;
00017 
00018   sample_p = copy_string_across_boundary (sample);
00019 
00020   CHECK ((handle = open ("sample.txt")) > 1, "open \"sample.txt\"");
00021 
00022   byte_cnt = write (handle, sample_p, sizeof sample - 1);
00023   if (byte_cnt != sizeof sample - 1)
00024     fail ("write() returned %d instead of %zu", byte_cnt, sizeof sample - 1);
00025 }