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tests/migration: Add test for VMSTATE_WITH_TMP 

Add a test for VMSTATE_WITH_TMP to tests/test-vmstate.c

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20170203160651.19917-4-dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2017-02-03 16:06:50 +00:00
parent bcf4513129
commit 5c379d9031
1 changed files with 92 additions and 6 deletions
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98
tests/test-vmstate.c
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@ -90,7 +90,7 @@ static void save_buffer(const uint8_t *buf, size_t buf_size)
qemu_fclose(fsave);
}
static void compare_vmstate(uint8_t *wire, size_t size)
static void compare_vmstate(const uint8_t *wire, size_t size)
{
QEMUFile *f = open_test_file(false);
uint8_t result[size];
@ -113,7 +113,7 @@ static void compare_vmstate(uint8_t *wire, size_t 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;
@ -137,7 +137,7 @@ static int load_vmstate_one(const VMStateDescription *desc, void *obj,
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);
@ -289,7 +289,6 @@ static void test_simple_primitive(void)
FIELD_EQUAL(i64_1);
FIELD_EQUAL(i64_2);
}
#undef FIELD_EQUAL
typedef struct TestStruct {
uint32_t a, b, c, e;
@ -474,7 +473,6 @@ static void test_load_skip(void)
qemu_fclose(loading);
}
typedef struct {
int32_t i;
} TestStructTriv;
@ -688,6 +686,94 @@ static void test_load_q(void)
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);
@ -708,7 +794,7 @@ int main(int argc, char **argv)
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);