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-rw-r--r--tests/tcg/test-mmap.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/tests/tcg/test-mmap.c b/tests/tcg/test-mmap.c
index c418b67660..3982fa2c72 100644
--- a/tests/tcg/test-mmap.c
+++ b/tests/tcg/test-mmap.c
@@ -429,6 +429,12 @@ void check_file_fixed_mmaps(void)
fprintf (stderr, " passed\n");
}
+void checked_write(int fd, const void *buf, size_t count)
+{
+ ssize_t rc = write(fd, buf, count);
+ fail_unless(rc == count);
+}
+
int main(int argc, char **argv)
{
char tempname[] = "/tmp/.cmmapXXXXXX";
@@ -450,13 +456,15 @@ int main(int argc, char **argv)
unlink(tempname);
/* Fill the file with int's counting from zero and up. */
- for (i = 0; i < (pagesize * 4) / sizeof i; i++)
- write (test_fd, &i, sizeof i);
+ for (i = 0; i < (pagesize * 4) / sizeof i; i++) {
+ checked_write(test_fd, &i, sizeof i);
+ }
+
/* Append a few extra writes to make the file end at non
page boundary. */
- write (test_fd, &i, sizeof i); i++;
- write (test_fd, &i, sizeof i); i++;
- write (test_fd, &i, sizeof i); i++;
+ checked_write(test_fd, &i, sizeof i); i++;
+ checked_write(test_fd, &i, sizeof i); i++;
+ checked_write(test_fd, &i, sizeof i); i++;
test_fsize = lseek(test_fd, 0, SEEK_CUR);