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#include "qemu/osdep.h"
#include <sys/wait.h>
#include "libqtest.h"
#include "libqos.h"
#include "pci.h"
#include "qapi/qmp/qdict.h"
/*** Test Setup & Teardown ***/
/**
* Launch QEMU with the given command line,
* and then set up interrupts and our guest malloc interface.
* Never returns NULL:
* Terminates the application in case an error is encountered.
*/
QOSState *qtest_vboot(QOSOps *ops, const char *cmdline_fmt, va_list ap)
{
char *cmdline;
QOSState *qs = g_new0(QOSState, 1);
cmdline = g_strdup_vprintf(cmdline_fmt, ap);
qs->qts = qtest_init(cmdline);
qs->ops = ops;
if (ops) {
ops->alloc_init(&qs->alloc, qs->qts, ALLOC_NO_FLAGS);
qs->pcibus = ops->qpci_new(qs->qts, &qs->alloc);
}
g_free(cmdline);
return qs;
}
/**
* Launch QEMU with the given command line,
* and then set up interrupts and our guest malloc interface.
*/
QOSState *qtest_boot(QOSOps *ops, const char *cmdline_fmt, ...)
{
QOSState *qs;
va_list ap;
va_start(ap, cmdline_fmt);
qs = qtest_vboot(ops, cmdline_fmt, ap);
va_end(ap);
return qs;
}
/**
* Tear down the QEMU instance.
*/
void qtest_common_shutdown(QOSState *qs)
{
if (qs->ops) {
if (qs->pcibus && qs->ops->qpci_free) {
qs->ops->qpci_free(qs->pcibus);
qs->pcibus = NULL;
}
}
alloc_destroy(&qs->alloc);
qtest_quit(qs->qts);
g_free(qs);
}
void qtest_shutdown(QOSState *qs)
{
if (qs->ops && qs->ops->shutdown) {
qs->ops->shutdown(qs);
} else {
qtest_common_shutdown(qs);
}
}
static QDict *qmp_execute(QTestState *qts, const char *command)
{
return qtest_qmp(qts, "{ 'execute': %s }", command);
}
void migrate(QOSState *from, QOSState *to, const char *uri)
{
const char *st;
QDict *rsp, *sub;
bool running;
/* Is the machine currently running? */
rsp = qmp_execute(from->qts, "query-status");
g_assert(qdict_haskey(rsp, "return"));
sub = qdict_get_qdict(rsp, "return");
g_assert(qdict_haskey(sub, "running"));
running = qdict_get_bool(sub, "running");
qobject_unref(rsp);
/* Issue the migrate command. */
rsp = qtest_qmp(from->qts,
"{ 'execute': 'migrate', 'arguments': { 'uri': %s }}",
uri);
g_assert(qdict_haskey(rsp, "return"));
qobject_unref(rsp);
/* Wait for STOP event, but only if we were running: */
if (running) {
qtest_qmp_eventwait(from->qts, "STOP");
}
/* If we were running, we can wait for an event. */
if (running) {
migrate_allocator(&from->alloc, &to->alloc);
qtest_qmp_eventwait(to->qts, "RESUME");
return;
}
/* Otherwise, we need to wait: poll until migration is completed. */
while (1) {
rsp = qmp_execute(from->qts, "query-migrate");
g_assert(qdict_haskey(rsp, "return"));
sub = qdict_get_qdict(rsp, "return");
g_assert(qdict_haskey(sub, "status"));
st = qdict_get_str(sub, "status");
/* "setup", "active", "completed", "failed", "cancelled" */
if (strcmp(st, "completed") == 0) {
qobject_unref(rsp);
break;
}
if ((strcmp(st, "setup") == 0) || (strcmp(st, "active") == 0)
|| (strcmp(st, "wait-unplug") == 0)) {
qobject_unref(rsp);
g_usleep(5000);
continue;
}
fprintf(stderr, "Migration did not complete, status: %s\n", st);
g_assert_not_reached();
}
migrate_allocator(&from->alloc, &to->alloc);
}
bool have_qemu_img(void)
{
char *rpath;
const char *path = getenv("QTEST_QEMU_IMG");
if (!path) {
return false;
}
rpath = realpath(path, NULL);
if (!rpath) {
return false;
} else {
free(rpath);
return true;
}
}
void mkimg(const char *file, const char *fmt, unsigned size_mb)
{
gchar *cli;
bool ret;
int rc;
GError *err = NULL;
char *qemu_img_path;
gchar *out, *out2;
char *qemu_img_abs_path;
qemu_img_path = getenv("QTEST_QEMU_IMG");
g_assert(qemu_img_path);
qemu_img_abs_path = realpath(qemu_img_path, NULL);
g_assert(qemu_img_abs_path);
cli = g_strdup_printf("%s create -f %s %s %uM", qemu_img_abs_path,
fmt, file, size_mb);
ret = g_spawn_command_line_sync(cli, &out, &out2, &rc, &err);
if (err || !g_spawn_check_exit_status(rc, &err)) {
fprintf(stderr, "%s\n", err->message);
g_error_free(err);
}
g_assert(ret && !err);
g_free(out);
g_free(out2);
g_free(cli);
free(qemu_img_abs_path);
}
void mkqcow2(const char *file, unsigned size_mb)
{
return mkimg(file, "qcow2", size_mb);
}
void prepare_blkdebug_script(const char *debug_fn, const char *event)
{
FILE *debug_file = fopen(debug_fn, "w");
int ret;
fprintf(debug_file, "[inject-error]\n");
fprintf(debug_file, "event = \"%s\"\n", event);
fprintf(debug_file, "errno = \"5\"\n");
fprintf(debug_file, "state = \"1\"\n");
fprintf(debug_file, "immediately = \"off\"\n");
fprintf(debug_file, "once = \"on\"\n");
fprintf(debug_file, "[set-state]\n");
fprintf(debug_file, "event = \"%s\"\n", event);
fprintf(debug_file, "new_state = \"2\"\n");
fflush(debug_file);
g_assert(!ferror(debug_file));
ret = fclose(debug_file);
g_assert(ret == 0);
}
void generate_pattern(void *buffer, size_t len, size_t cycle_len)
{
int i, j;
unsigned char *tx = (unsigned char *)buffer;
unsigned char p;
size_t *sx;
/* Write an indicative pattern that varies and is unique per-cycle */
p = rand() % 256;
for (i = 0; i < len; i++) {
tx[i] = p++ % 256;
if (i % cycle_len == 0) {
p = rand() % 256;
}
}
/* force uniqueness by writing an id per-cycle */
for (i = 0; i < len / cycle_len; i++) {
j = i * cycle_len;
if (j + sizeof(*sx) <= len) {
sx = (size_t *)&tx[j];
*sx = i;
}
}
}
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