static void tcp_wait_for_connect(void *opaque)
{
FdMigrationState *s = opaque;
int val, ret;
socklen_t valsize = sizeof(val);
dprintf("connect completed\n");
do {
ret = getsockopt(s->fd, SOL_SOCKET, SO_ERROR, (char *)&val, &valsize);
} while (ret == -1 && (s->get_error(s)) == EINTR);
if (ret < 0) {
migrate_fd_error(s);
return;
}
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
if (val == 0)
migrate_fd_connect(s);
else {
dprintf("error connecting %d\n", val);
migrate_fd_error(s);
}
}
int exec_start_outgoing_migration(MigrationState *s, const char *command)
{
FILE *f;
f = popen(command, "w");
if (f == NULL) {
DPRINTF("Unable to popen exec target\n");
goto err_after_popen;
}
s->fd = fileno(f);
if (s->fd == -1) {
DPRINTF("Unable to retrieve file descriptor for popen'd handle\n");
goto err_after_open;
}
socket_set_nonblock(s->fd);
s->opaque = qemu_popen(f, "w");
s->close = exec_close;
s->get_error = file_errno;
s->write = file_write;
migrate_fd_connect(s);
return 0;
err_after_open:
pclose(f);
err_after_popen:
return -1;
}
int fd_start_outgoing_migration(MigrationState *s, const char *fdname)
{
s->fd = monitor_get_fd(cur_mon, fdname, NULL);
if (s->fd == -1) {
DPRINTF("fd_migration: invalid file descriptor identifier\n");
goto err_after_get_fd;
}
if (fcntl(s->fd, F_SETFL, O_NONBLOCK) == -1) {
DPRINTF("Unable to set nonblocking mode on file descriptor\n");
goto err_after_open;
}
s->get_error = fd_errno;
s->write = fd_write;
s->close = fd_close;
migrate_fd_connect(s);
return 0;
err_after_open:
close(s->fd);
err_after_get_fd:
return -1;
}
MigrationState *exec_start_outgoing_migration(const char *command,
int64_t bandwidth_limit,
int async)
{
FdMigrationState *s;
FILE *f;
s = qemu_mallocz(sizeof(*s));
if (s == NULL) {
dprintf("Unable to allocate FdMigrationState\n");
goto err;
}
f = popen(command, "w");
if (f == NULL) {
dprintf("Unable to popen exec target\n");
goto err_after_alloc;
}
s->fd = fileno(f);
if (s->fd == -1) {
dprintf("Unable to retrieve file descriptor for popen'd handle\n");
goto err_after_open;
}
if (fcntl(s->fd, F_SETFD, O_NONBLOCK) == -1) {
dprintf("Unable to set nonblocking mode on file descriptor\n");
goto err_after_open;
}
s->opaque = qemu_popen(f, "w");
s->close = exec_close;
s->get_error = file_errno;
s->write = file_write;
s->mig_state.cancel = migrate_fd_cancel;
s->mig_state.get_status = migrate_fd_get_status;
s->mig_state.release = migrate_fd_release;
s->state = MIG_STATE_ACTIVE;
s->detach = !async;
s->bandwidth_limit = bandwidth_limit;
if (s->detach == 1) {
dprintf("detaching from monitor\n");
monitor_suspend();
s->detach = 2;
}
migrate_fd_connect(s);
return &s->mig_state;
err_after_open:
pclose(f);
err_after_alloc:
qemu_free(s);
err:
return NULL;
}
int tlc_exec_start_outgoing_migration(MigrationState *s, const char *command)
{
FILE *f;
//int64_t test_timer_start,
// test_timer_stop3,
// test_timer_stop2,
// test_timer_stop1;
//test_timer_start = qemu_get_clock_ms(rt_clock);
f = popen(command, "w");
if (f == NULL) {
DPRINTF("Unable to popen exec target\n");
goto err_after_popen;
}
//test_timer_stop1 = qemu_get_clock_ms(rt_clock);
//DREG{printf("exec: test_timer1: elasp = %" PRId64 " ms\n", test_timer_stop1 - test_timer_start);
//fflush(stdout);}
s->fd = fileno(f);
if (s->fd == -1) {
DPRINTF("Unable to retrieve file descriptor for popen'd handle\n");
goto err_after_open;
}
if(unlikely(mthread)){
//printf("exec_outgoing: set blocking\n");
fflush(stdout);
socket_set_block(s->fd);
}
else{
printf("exec_outgoing: set NON blocking\n");
fflush(stdout);
socket_set_nonblock(s->fd);
}
s->opaque = qemu_popen(f, "w");
//test_timer_stop2 = qemu_get_clock_ms(rt_clock);
//DREG{printf("exec: test_timer2: elasp = %" PRId64 " ms\n", test_timer_stop2 - test_timer_stop1);
//fflush(stdout);}
s->close = exec_close;
s->get_error = file_errno;
s->write = file_write;
migrate_fd_connect(s);
//test_timer_stop3 = qemu_get_clock_ms(rt_clock);
//DREG{printf("exec: test_timer3: elasp = %" PRId64 " ms\n", test_timer_stop3 - test_timer_stop2);
//fflush(stdout);}
return 0;
err_after_open:
pclose(f);
err_after_popen:
return -1;
}
MigrationState *tcp_start_outgoing_migration(const char *host_port,
int64_t bandwidth_limit,
int detach,
int blk,
int inc)
{
struct sockaddr_in addr;
FdMigrationState *s;
int ret;
if (parse_host_port(&addr, host_port) < 0)
return NULL;
s = qemu_mallocz(sizeof(*s));
s->get_error = socket_errno;
s->write = socket_write;
s->close = tcp_close;
s->mig_state.cancel = migrate_fd_cancel;
s->mig_state.get_status = migrate_fd_get_status;
s->mig_state.release = migrate_fd_release;
s->mig_state.blk = blk;
s->mig_state.shared = inc;
s->state = MIG_STATE_ACTIVE;
s->mon_resume = NULL;
s->bandwidth_limit = bandwidth_limit;
s->fd = socket(PF_INET, SOCK_STREAM, 0);
if (s->fd == -1) {
qemu_free(s);
return NULL;
}
socket_set_nonblock(s->fd);
if (!detach)
migrate_fd_monitor_suspend(s);
do {
ret = connect(s->fd, (struct sockaddr *)&addr, sizeof(addr));
if (ret == -1)
ret = -(s->get_error(s));
if (ret == -EINPROGRESS || ret == -EWOULDBLOCK)
qemu_set_fd_handler2(s->fd, NULL, NULL, tcp_wait_for_connect, s);
} while (ret == -EINTR);
if (ret < 0 && ret != -EINPROGRESS && ret != -EWOULDBLOCK) {
dprintf("connect failed\n");
close(s->fd);
qemu_free(s);
return NULL;
} else if (ret >= 0)
migrate_fd_connect(s);
return &s->mig_state;
}
void exec_start_outgoing_migration(MigrationState *s, const char *command, Error **errp)
{
s->to_dst_file = qemu_popen_cmd(command, "w");
if (s->to_dst_file == NULL) {
error_setg_errno(errp, errno, "failed to popen the migration target");
return;
}
migrate_fd_connect(s);
}
MigrationState *exec_start_outgoing_migration(Monitor *mon,
const char *command,
int64_t bandwidth_limit,
int detach,
int blk,
int inc)
{
FdMigrationState *s;
FILE *f;
s = qemu_mallocz(sizeof(*s));
f = popen(command, "w");
if (f == NULL) {
dprintf("Unable to popen exec target\n");
goto err_after_alloc;
}
s->fd = fileno(f);
if (s->fd == -1) {
dprintf("Unable to retrieve file descriptor for popen'd handle\n");
goto err_after_open;
}
socket_set_nonblock(s->fd);
s->opaque = qemu_popen(f, "w");
s->close = exec_close;
s->get_error = file_errno;
s->write = file_write;
s->mig_state.cancel = migrate_fd_cancel;
s->mig_state.get_status = migrate_fd_get_status;
s->mig_state.release = migrate_fd_release;
s->mig_state.blk = blk;
s->mig_state.shared = inc;
s->state = MIG_STATE_ACTIVE;
s->mon = NULL;
s->bandwidth_limit = bandwidth_limit;
if (!detach) {
migrate_fd_monitor_suspend(s, mon);
}
migrate_fd_connect(s);
return &s->mig_state;
err_after_open:
pclose(f);
err_after_alloc:
qemu_free(s);
return NULL;
}
MigrationState *tcp_start_outgoing_migration(const char *host_port,
int64_t bandwidth_limit,
int detach)
{
SockAddress addr;
FdMigrationState *s;
int ret;
if (parse_host_port(&addr, host_port) < 0)
return NULL;
s = g_malloc0(sizeof(*s));
s->get_error = socket_errno;
s->write = socket_write;
s->close = tcp_close;
s->mig_state.cancel = migrate_fd_cancel;
s->mig_state.get_status = migrate_fd_get_status;
s->mig_state.release = migrate_fd_release;
s->state = MIG_STATE_ACTIVE;
s->mon_resume = NULL;
s->bandwidth_limit = bandwidth_limit;
s->fd = socket_create_inet(SOCKET_STREAM);
if (s->fd == -1) {
g_free(s);
return NULL;
}
socket_set_nonblock(s->fd);
if (!detach)
migrate_fd_monitor_suspend(s);
do {
ret = socket_connect(s->fd, &addr);
if (ret == -1)
ret = -(s->get_error(s));
if (ret == -EINPROGRESS || ret == -EWOULDBLOCK || ret == -EAGAIN)
qemu_set_fd_handler2(s->fd, NULL, NULL, tcp_wait_for_connect, s);
} while (ret == -EINTR);
if (ret < 0 && ret != -EINPROGRESS && ret != -EWOULDBLOCK && ret != -EAGAIN) {
dprintf("connect failed\n");
socket_close(s->fd);
g_free(s);
return NULL;
} else if (ret >= 0)
migrate_fd_connect(s);
return &s->mig_state;
}
static void unix_wait_for_connect(int fd, void *opaque)
{
MigrationState *s = opaque;
if (fd < 0) {
DPRINTF("migrate connect error\n");
s->file = NULL;
migrate_fd_error(s);
} else {
DPRINTF("migrate connect success\n");
s->file = qemu_fopen_socket(fd, "wb");
migrate_fd_connect(s);
}
}
void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error **errp)
{
s->fd = monitor_get_fd(cur_mon, fdname, errp);
if (s->fd == -1) {
return;
}
fcntl(s->fd, F_SETFL, O_NONBLOCK);
s->get_error = fd_errno;
s->write = fd_write;
s->close = fd_close;
migrate_fd_connect(s);
}
static void tcp_wait_for_connect(int fd, void *opaque)
{
FdMigrationState *s = opaque;
if (fd < 0) {
DPRINTF("migrate connect error\n");
s->fd = -1;
migrate_fd_error(s);
} else {
DPRINTF("migrate connect success\n");
s->fd = fd;
migrate_fd_connect(s);
}
}
MigrationState *fd_start_outgoing_migration(Monitor *mon,
const char *fdname,
int64_t bandwidth_limit,
int detach,
int blk,
int inc)
{
FdMigrationState *s;
s = qemu_mallocz(sizeof(*s));
s->fd = monitor_get_fd(mon, fdname);
if (s->fd == -1) {
DPRINTF("fd_migration: invalid file descriptor identifier\n");
goto err_after_alloc;
}
if (fcntl(s->fd, F_SETFL, O_NONBLOCK) == -1) {
DPRINTF("Unable to set nonblocking mode on file descriptor\n");
goto err_after_open;
}
s->get_error = fd_errno;
s->write = fd_write;
s->close = fd_close;
s->mig_state.cancel = migrate_fd_cancel;
s->mig_state.get_status = migrate_fd_get_status;
s->mig_state.release = migrate_fd_release;
s->mig_state.blk = blk;
s->mig_state.shared = inc;
s->state = MIG_STATE_ACTIVE;
s->mon = NULL;
s->bandwidth_limit = bandwidth_limit;
if (!detach) {
migrate_fd_monitor_suspend(s, mon);
}
migrate_fd_connect(s);
return &s->mig_state;
err_after_open:
close(s->fd);
err_after_alloc:
qemu_free(s);
return NULL;
}
static void unix_wait_for_connect(int fd, void *opaque)
{
MigrationState *s = opaque;
if (fd < 0) {
DPRINTF("migrate connect error\n");
s->fd = -1;
migrate_fd_error(s);
} else {
DPRINTF("migrate connect success\n");
s->fd = fd;
qemu_set_block(s->fd);
migrate_fd_connect(s);
}
}
static void tcp_wait_for_connect(void *opaque)
{
FdMigrationState *s = opaque;
int ret;
dprintf("connect completed\n");
ret = socket_get_error(s->fd);
if (ret < 0) {
dprintf("error connecting %d\n", val);
migrate_fd_error(s);
return;
}
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
migrate_fd_connect(s);
}
MigrationState *unix_start_outgoing_migration(Monitor *mon,
const char *path,
int64_t bandwidth_limit,
int detach,
int blk,
int inc)
{
FdMigrationState *s;
struct sockaddr_un addr;
int ret;
addr.sun_family = AF_UNIX;
snprintf(addr.sun_path, sizeof(addr.sun_path), "%s", path);
s = g_malloc0(sizeof(*s));
s->get_error = unix_errno;
s->write = unix_write;
s->close = unix_close;
s->mig_state.cancel = migrate_fd_cancel;
s->mig_state.get_status = migrate_fd_get_status;
s->mig_state.release = migrate_fd_release;
s->mig_state.blk = blk;
s->mig_state.shared = inc;
s->state = MIG_STATE_ACTIVE;
s->mon = NULL;
s->bandwidth_limit = bandwidth_limit;
s->fd = qemu_socket(PF_UNIX, SOCK_STREAM, 0);
if (s->fd < 0) {
DPRINTF("Unable to open socket");
goto err_after_alloc;
}
socket_set_nonblock(s->fd);
do {
ret = connect(s->fd, (struct sockaddr *)&addr, sizeof(addr));
if (ret == -1)
ret = -(s->get_error(s));
if (ret == -EINPROGRESS || ret == -EWOULDBLOCK)
qemu_set_fd_handler2(s->fd, NULL, NULL, unix_wait_for_connect, s);
} while (ret == -EINTR);
if (ret < 0 && ret != -EINPROGRESS && ret != -EWOULDBLOCK) {
DPRINTF("connect failed\n");
goto err_after_open;
}
if (!detach) {
migrate_fd_monitor_suspend(s, mon);
}
if (ret >= 0)
migrate_fd_connect(s);
return &s->mig_state;
err_after_open:
close(s->fd);
err_after_alloc:
g_free(s);
return NULL;
}
