1 files changed, 54 insertions, 0 deletions
diff --git a/libaio-0.3.109/harness/cases/5.t b/libaio-0.3.109/harness/cases/5.t
new file mode 100644
index 0000000..2b4b4bb
--- /dev/null
+++ b/libaio-0.3.109/harness/cases/5.t
@@ -0,0 +1,54 @@
+/* 5.t
+- Write from a mmap() of the same file. (5.t)
+*/
+#include "aio_setup.h"
+#include <sys/mman.h>
+#include <errno.h>
+
+int test_main(void)
+{
+	int page_size = getpagesize();
+#define SIZE	512
+	char *buf;
+	int rwfd;
+	int	status = 0, res;
+
+	rwfd = open("testdir/rwfile", O_RDWR);		assert(rwfd != -1);
+	res = ftruncate(rwfd, 512);			assert(res == 0);
+
+	buf = mmap(0, page_size, PROT_READ|PROT_WRITE, MAP_SHARED, rwfd, 0);
+	assert(buf != (char *)-1);
+
+	status |= attempt_rw(rwfd, buf, SIZE,  0, WRITE, SIZE);
+	status |= attempt_rw(rwfd, buf, SIZE,  0,  READ, SIZE);
+
+	res = munmap(buf, page_size);			assert(res == 0);
+	buf = mmap(0, page_size, PROT_READ|PROT_WRITE, MAP_SHARED, rwfd, 0);
+	assert(buf != (char *)-1);
+
+	status |= attempt_rw(rwfd, buf, SIZE,  0,  READ, SIZE);
+	status |= attempt_rw(rwfd, buf, SIZE,  0, WRITE, SIZE);
+
+	res = munmap(buf, page_size);			assert(res == 0);
+	buf = mmap(0, page_size, PROT_READ, MAP_SHARED, rwfd, 0);
+	assert(buf != (char *)-1);
+
+	status |= attempt_rw(rwfd, buf, SIZE,  0, WRITE, SIZE);
+	status |= attempt_rw(rwfd, buf, SIZE,  0,  READ, -EFAULT);
+
+	res = munmap(buf, page_size);			assert(res == 0);
+	buf = mmap(0, page_size, PROT_WRITE, MAP_SHARED, rwfd, 0);
+	assert(buf != (char *)-1);
+
+	status |= attempt_rw(rwfd, buf, SIZE,  0,  READ, SIZE);
+
+	/* Whether PROT_WRITE is readable is arch-dependent.  So compare
+	 * against read result. */
+	res = read(rwfd, buf, SIZE);
+	if (res < 0)
+		res = -errno;
+	status |= attempt_rw(rwfd, buf, SIZE,  0, WRITE, res);
+
+	return status;
+}
+