static char temp_file[] = "/tmp/vmst.test.XXXXXX";
static int temp_fd;
-/* Fake yield_until_fd_readable() implementation so we don't have to pull the
- * coroutine code as dependency.
- */
-void yield_until_fd_readable(int fd)
-{
- fd_set fds;
- FD_ZERO(&fds);
- FD_SET(fd, &fds);
- select(fd + 1, &fds, NULL, NULL, NULL);
-}
-
/* Duplicate temp_fd and seek to the beginning of the file */
static QEMUFile *open_test_file(bool write)
{
int fd = dup(temp_fd);
QIOChannel *ioc;
+ QEMUFile *f;
+
lseek(fd, 0, SEEK_SET);
if (write) {
g_assert_cmpint(ftruncate(fd, 0), ==, 0);
}
ioc = QIO_CHANNEL(qio_channel_file_new_fd(fd));
if (write) {
- return qemu_fopen_channel_output(ioc);
+ f = qemu_fopen_channel_output(ioc);
} else {
- return qemu_fopen_channel_input(ioc);
+ f = qemu_fopen_channel_input(ioc);
}
+ object_unref(OBJECT(ioc));
+ return f;
}
#define SUCCESS(val) \
qemu_fclose(f);
}
-static void compare_vmstate(uint8_t *wire, size_t size)
+static void save_buffer(const uint8_t *buf, size_t buf_size)
+{
+ QEMUFile *fsave = open_test_file(true);
+ qemu_put_buffer(fsave, buf, buf_size);
+ qemu_fclose(fsave);
+}
+
+static void compare_vmstate(const uint8_t *wire, size_t size)
{
QEMUFile *f = open_test_file(false);
uint8_t result[size];
}
static int load_vmstate_one(const VMStateDescription *desc, void *obj,
- int version, uint8_t *wire, size_t size)
+ int version, const uint8_t *wire, size_t size)
{
QEMUFile *f;
int ret;
static int load_vmstate(const VMStateDescription *desc,
void *obj, void *obj_clone,
void (*obj_copy)(void *, void*),
- int version, uint8_t *wire, size_t size)
+ int version, const uint8_t *wire, size_t size)
{
/* We test with zero size */
obj_copy(obj_clone, obj);
FIELD_EQUAL(i64_1);
FIELD_EQUAL(i64_2);
}
-#undef FIELD_EQUAL
typedef struct TestStruct {
uint32_t a, b, c, e;
static void test_load_v1(void)
{
- QEMUFile *fsave = open_test_file(true);
uint8_t buf[] = {
0, 0, 0, 10, /* a */
0, 0, 0, 30, /* c */
0, 0, 0, 0, 0, 0, 0, 40, /* d */
QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
};
- qemu_put_buffer(fsave, buf, sizeof(buf));
- qemu_fclose(fsave);
+ save_buffer(buf, sizeof(buf));
QEMUFile *loading = open_test_file(false);
TestStruct obj = { .b = 200, .e = 500, .f = 600 };
static void test_load_v2(void)
{
- QEMUFile *fsave = open_test_file(true);
uint8_t buf[] = {
0, 0, 0, 10, /* a */
0, 0, 0, 20, /* b */
0, 0, 0, 0, 0, 0, 0, 60, /* f */
QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
};
- qemu_put_buffer(fsave, buf, sizeof(buf));
- qemu_fclose(fsave);
+ save_buffer(buf, sizeof(buf));
QEMUFile *loading = open_test_file(false);
TestStruct obj;
static void test_load_noskip(void)
{
- QEMUFile *fsave = open_test_file(true);
uint8_t buf[] = {
0, 0, 0, 10, /* a */
0, 0, 0, 20, /* b */
0, 0, 0, 0, 0, 0, 0, 60, /* f */
QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
};
- qemu_put_buffer(fsave, buf, sizeof(buf));
- qemu_fclose(fsave);
+ save_buffer(buf, sizeof(buf));
QEMUFile *loading = open_test_file(false);
TestStruct obj = { .skip_c_e = false };
static void test_load_skip(void)
{
- QEMUFile *fsave = open_test_file(true);
uint8_t buf[] = {
0, 0, 0, 10, /* a */
0, 0, 0, 20, /* b */
0, 0, 0, 0, 0, 0, 0, 60, /* f */
QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
};
- qemu_put_buffer(fsave, buf, sizeof(buf));
- qemu_fclose(fsave);
+ save_buffer(buf, sizeof(buf));
QEMUFile *loading = open_test_file(false);
TestStruct obj = { .skip_c_e = true, .c = 300, .e = 500 };
qemu_fclose(loading);
}
+typedef struct {
+ int32_t i;
+} TestStructTriv;
+
+const VMStateDescription vmsd_tst = {
+ .name = "test/tst",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_INT32(i, TestStructTriv),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+#define AR_SIZE 4
+
+typedef struct {
+ TestStructTriv *ar[AR_SIZE];
+} TestArrayOfPtrToStuct;
+
+const VMStateDescription vmsd_arps = {
+ .name = "test/arps",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(ar, TestArrayOfPtrToStuct,
+ AR_SIZE, 0, vmsd_tst, TestStructTriv),
+ VMSTATE_END_OF_LIST()
+ }
+};
+static void test_arr_ptr_str_no0_save(void)
+{
+ TestStructTriv ar[AR_SIZE] = {{.i = 0}, {.i = 1}, {.i = 2}, {.i = 3} };
+ TestArrayOfPtrToStuct sample = {.ar = {&ar[0], &ar[1], &ar[2], &ar[3]} };
+ uint8_t wire_sample[] = {
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x01,
+ 0x00, 0x00, 0x00, 0x02,
+ 0x00, 0x00, 0x00, 0x03,
+ QEMU_VM_EOF
+ };
+
+ save_vmstate(&vmsd_arps, &sample);
+ compare_vmstate(wire_sample, sizeof(wire_sample));
+}
+
+static void test_arr_ptr_str_no0_load(void)
+{
+ TestStructTriv ar_gt[AR_SIZE] = {{.i = 0}, {.i = 1}, {.i = 2}, {.i = 3} };
+ TestStructTriv ar[AR_SIZE] = {};
+ TestArrayOfPtrToStuct obj = {.ar = {&ar[0], &ar[1], &ar[2], &ar[3]} };
+ int idx;
+ uint8_t wire_sample[] = {
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x01,
+ 0x00, 0x00, 0x00, 0x02,
+ 0x00, 0x00, 0x00, 0x03,
+ QEMU_VM_EOF
+ };
+
+ save_buffer(wire_sample, sizeof(wire_sample));
+ SUCCESS(load_vmstate_one(&vmsd_arps, &obj, 1,
+ wire_sample, sizeof(wire_sample)));
+ for (idx = 0; idx < AR_SIZE; ++idx) {
+ /* compare the target array ar with the ground truth array ar_gt */
+ g_assert_cmpint(ar_gt[idx].i, ==, ar[idx].i);
+ }
+}
+
+/* test QTAILQ migration */
+typedef struct TestQtailqElement TestQtailqElement;
+
+struct TestQtailqElement {
+ bool b;
+ uint8_t u8;
+ QTAILQ_ENTRY(TestQtailqElement) next;
+};
+
+typedef struct TestQtailq {
+ int16_t i16;
+ QTAILQ_HEAD(TestQtailqHead, TestQtailqElement) q;
+ int32_t i32;
+} TestQtailq;
+
+static const VMStateDescription vmstate_q_element = {
+ .name = "test/queue-element",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_BOOL(b, TestQtailqElement),
+ VMSTATE_UINT8(u8, TestQtailqElement),
+ VMSTATE_END_OF_LIST()
+ },
+};
+
+static const VMStateDescription vmstate_q = {
+ .name = "test/queue",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_INT16(i16, TestQtailq),
+ VMSTATE_QTAILQ_V(q, TestQtailq, 1, vmstate_q_element, TestQtailqElement,
+ next),
+ VMSTATE_INT32(i32, TestQtailq),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+uint8_t wire_q[] = {
+ /* i16 */ 0xfe, 0x0,
+ /* start of element 0 of q */ 0x01,
+ /* .b */ 0x01,
+ /* .u8 */ 0x82,
+ /* start of element 1 of q */ 0x01,
+ /* b */ 0x00,
+ /* u8 */ 0x41,
+ /* end of q */ 0x00,
+ /* i32 */ 0x00, 0x01, 0x11, 0x70,
+ QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
+};
+
+static void test_save_q(void)
+{
+ TestQtailq obj_q = {
+ .i16 = -512,
+ .i32 = 70000,
+ };
+
+ TestQtailqElement obj_qe1 = {
+ .b = true,
+ .u8 = 130,
+ };
+
+ TestQtailqElement obj_qe2 = {
+ .b = false,
+ .u8 = 65,
+ };
+
+ QTAILQ_INIT(&obj_q.q);
+ QTAILQ_INSERT_TAIL(&obj_q.q, &obj_qe1, next);
+ QTAILQ_INSERT_TAIL(&obj_q.q, &obj_qe2, next);
+
+ save_vmstate(&vmstate_q, &obj_q);
+ compare_vmstate(wire_q, sizeof(wire_q));
+}
+
+static void test_load_q(void)
+{
+ TestQtailq obj_q = {
+ .i16 = -512,
+ .i32 = 70000,
+ };
+
+ TestQtailqElement obj_qe1 = {
+ .b = true,
+ .u8 = 130,
+ };
+
+ TestQtailqElement obj_qe2 = {
+ .b = false,
+ .u8 = 65,
+ };
+
+ QTAILQ_INIT(&obj_q.q);
+ QTAILQ_INSERT_TAIL(&obj_q.q, &obj_qe1, next);
+ QTAILQ_INSERT_TAIL(&obj_q.q, &obj_qe2, next);
+
+ QEMUFile *fsave = open_test_file(true);
+
+ qemu_put_buffer(fsave, wire_q, sizeof(wire_q));
+ g_assert(!qemu_file_get_error(fsave));
+ qemu_fclose(fsave);
+
+ QEMUFile *fload = open_test_file(false);
+ TestQtailq tgt;
+
+ QTAILQ_INIT(&tgt.q);
+ vmstate_load_state(fload, &vmstate_q, &tgt, 1);
+ char eof = qemu_get_byte(fload);
+ g_assert(!qemu_file_get_error(fload));
+ g_assert_cmpint(tgt.i16, ==, obj_q.i16);
+ g_assert_cmpint(tgt.i32, ==, obj_q.i32);
+ g_assert_cmpint(eof, ==, QEMU_VM_EOF);
+
+ TestQtailqElement *qele_from = QTAILQ_FIRST(&obj_q.q);
+ TestQtailqElement *qlast_from = QTAILQ_LAST(&obj_q.q, TestQtailqHead);
+ TestQtailqElement *qele_to = QTAILQ_FIRST(&tgt.q);
+ TestQtailqElement *qlast_to = QTAILQ_LAST(&tgt.q, TestQtailqHead);
+
+ while (1) {
+ g_assert_cmpint(qele_to->b, ==, qele_from->b);
+ g_assert_cmpint(qele_to->u8, ==, qele_from->u8);
+ if ((qele_from == qlast_from) || (qele_to == qlast_to)) {
+ break;
+ }
+ qele_from = QTAILQ_NEXT(qele_from, next);
+ qele_to = QTAILQ_NEXT(qele_to, next);
+ }
+
+ g_assert_cmpint((uintptr_t) qele_from, ==, (uintptr_t) qlast_from);
+ g_assert_cmpint((uintptr_t) qele_to, ==, (uintptr_t) qlast_to);
+
+ /* clean up */
+ TestQtailqElement *qele;
+ while (!QTAILQ_EMPTY(&tgt.q)) {
+ qele = QTAILQ_LAST(&tgt.q, TestQtailqHead);
+ QTAILQ_REMOVE(&tgt.q, qele, next);
+ free(qele);
+ qele = NULL;
+ }
+ qemu_fclose(fload);
+}
+
+typedef struct TmpTestStruct {
+ TestStruct *parent;
+ int64_t diff;
+} TmpTestStruct;
+
+static void tmp_child_pre_save(void *opaque)
+{
+ struct TmpTestStruct *tts = opaque;
+
+ tts->diff = tts->parent->b - tts->parent->a;
+}
+
+static int tmp_child_post_load(void *opaque, int version_id)
+{
+ struct TmpTestStruct *tts = opaque;
+
+ tts->parent->b = tts->parent->a + tts->diff;
+
+ return 0;
+}
+
+static const VMStateDescription vmstate_tmp_back_to_parent = {
+ .name = "test/tmp_child_parent",
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT64(f, TestStruct),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription vmstate_tmp_child = {
+ .name = "test/tmp_child",
+ .pre_save = tmp_child_pre_save,
+ .post_load = tmp_child_post_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_INT64(diff, TmpTestStruct),
+ VMSTATE_STRUCT_POINTER(parent, TmpTestStruct,
+ vmstate_tmp_back_to_parent, TestStruct),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription vmstate_with_tmp = {
+ .name = "test/with_tmp",
+ .version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(a, TestStruct),
+ VMSTATE_UINT64(d, TestStruct),
+ VMSTATE_WITH_TMP(TestStruct, TmpTestStruct, vmstate_tmp_child),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void obj_tmp_copy(void *target, void *source)
+{
+ memcpy(target, source, sizeof(TestStruct));
+}
+
+static void test_tmp_struct(void)
+{
+ TestStruct obj, obj_clone;
+
+ uint8_t const wire_with_tmp[] = {
+ /* u32 a */ 0x00, 0x00, 0x00, 0x02,
+ /* u64 d */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+ /* diff */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,
+ /* u64 f */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08,
+ QEMU_VM_EOF, /* just to ensure we won't get EOF reported prematurely */
+ };
+
+ memset(&obj, 0, sizeof(obj));
+ obj.a = 2;
+ obj.b = 4;
+ obj.d = 1;
+ obj.f = 8;
+ save_vmstate(&vmstate_with_tmp, &obj);
+
+ compare_vmstate(wire_with_tmp, sizeof(wire_with_tmp));
+
+ memset(&obj, 0, sizeof(obj));
+ SUCCESS(load_vmstate(&vmstate_with_tmp, &obj, &obj_clone,
+ obj_tmp_copy, 1, wire_with_tmp,
+ sizeof(wire_with_tmp)));
+ g_assert_cmpint(obj.a, ==, 2); /* From top level vmsd */
+ g_assert_cmpint(obj.b, ==, 4); /* from the post_load */
+ g_assert_cmpint(obj.d, ==, 1); /* From top level vmsd */
+ g_assert_cmpint(obj.f, ==, 8); /* From the child->parent */
+}
+
int main(int argc, char **argv)
{
temp_fd = mkstemp(temp_file);
g_test_add_func("/vmstate/field_exists/load/skip", test_load_skip);
g_test_add_func("/vmstate/field_exists/save/noskip", test_save_noskip);
g_test_add_func("/vmstate/field_exists/save/skip", test_save_skip);
+ g_test_add_func("/vmstate/array/ptr/str/no0/save",
+ test_arr_ptr_str_no0_save);
+ g_test_add_func("/vmstate/array/ptr/str/no0/load",
+ test_arr_ptr_str_no0_load);
+ g_test_add_func("/vmstate/qtailq/save/saveq", test_save_q);
+ g_test_add_func("/vmstate/qtailq/load/loadq", test_load_q);
+ g_test_add_func("/vmstate/tmp_struct", test_tmp_struct);
g_test_run();
close(temp_fd);
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