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#include <kvm/util.h>
#include <kvm/kvm-cmd.h>
#include <kvm/builtin-pause.h>
#include <kvm/builtin-list.h>
#include <kvm/kvm.h>
#include <kvm/parse-options.h>
#include <kvm/kvm-ipc.h>
#include <stdio.h>
#include <string.h>
#include <signal.h>
static bool all;
static const char *instance_name;
static const char * const pause_usage[] = {
"lkvm pause [--all] [-n name]",
NULL
};
static const struct option pause_options[] = {
OPT_GROUP("General options:"),
OPT_BOOLEAN('a', "all", &all, "Pause all instances"),
OPT_STRING('n', "name", &instance_name, "name", "Instance name"),
OPT_END()
};
static void parse_pause_options(int argc, const char **argv)
{
while (argc != 0) {
argc = parse_options(argc, argv, pause_options, pause_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
if (argc != 0)
kvm_pause_help();
}
}
void kvm_pause_help(void)
{
usage_with_options(pause_usage, pause_options);
}
static int do_pause(const char *name, int sock)
{
int r;
int vmstate;
vmstate = get_vmstate(sock);
if (vmstate < 0)
return vmstate;
if (vmstate == KVM_VMSTATE_PAUSED) {
printf("Guest %s is already paused.\n", name);
return 0;
}
r = kvm_ipc__send(sock, KVM_IPC_PAUSE);
if (r)
return r;
printf("Guest %s paused\n", name);
return 0;
}
int kvm_cmd_pause(int argc, const char **argv, const char *prefix)
{
int instance;
int r;
parse_pause_options(argc, argv);
if (all)
return kvm__enumerate_instances(do_pause);
if (instance_name == NULL)
kvm_pause_help();
instance = kvm__get_sock_by_instance(instance_name);
if (instance <= 0)
die("Failed locating instance");
r = do_pause(instance_name, instance);
close(instance);
return r;
}
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