/*
* remove_remote -- (internal) remove remote pool
*/
static int
remove_remote(const char *target, const char *pool_set)
{
#ifdef USE_RPMEM
struct rpmem_target_info *info = rpmem_target_parse(target);
if (!info)
goto err_parse;
struct rpmem_ssh *ssh = rpmem_ssh_exec(info, "--remove",
pool_set, "--force", NULL);
if (!ssh) {
goto err_ssh_exec;
}
if (rpmem_ssh_monitor(ssh, 0))
goto err_ssh_monitor;
int ret = rpmem_ssh_close(ssh);
rpmem_target_free(info);
return ret;
err_ssh_monitor:
rpmem_ssh_close(ssh);
err_ssh_exec:
rpmem_target_free(info);
err_parse:
return -1;
#else
FATAL("remote replication not supported");
return -1;
#endif
}
/*
* rpmem_obc_close_conn -- (internal) close connection
*/
static void
rpmem_obc_close_conn(struct rpmem_obc *rpc)
{
rpmem_ssh_close(rpc->ssh);
(void) util_fetch_and_and64(&rpc->ssh, 0);
}
/*
* rpmem_obc_close_conn -- (internal) close connection
*/
static void
rpmem_obc_close_conn(struct rpmem_obc *rpc)
{
rpmem_ssh_close(rpc->ssh);
rpc->ssh = NULL;
}
/*
* rpmem_ssh_open -- open ssh connection with specified node and wait for status
*/
struct rpmem_ssh *
rpmem_ssh_open(const struct rpmem_target_info *info)
{
struct rpmem_ssh *ssh = rpmem_ssh_exec(info, NULL);
if (!ssh)
return NULL;
/*
* Read initial status from invoked command.
* This is for synchronization purposes and to make it possible
* to inform client that command's initialization failed.
*/
int32_t status;
int ret = rpmem_ssh_recv(ssh, &status, sizeof(status));
if (ret) {
if (ret == 1 || errno == ECONNRESET)
ERR("%s", rpmem_ssh_strerror(ssh, errno));
else
ERR("!%s", info->node);
goto err_recv_status;
}
if (status) {
ERR("%s: unexpected status received -- '%d'",
info->node, status);
errno = status;
goto err_status;
}
RPMEM_LOG(INFO, "received status: %u", status);
return ssh;
err_recv_status:
err_status:
rpmem_ssh_close(ssh);
return NULL;
}
/*
* clnt_close -- close client
*/
void
clnt_close(struct rpmem_ssh *ssh)
{
rpmem_ssh_close(ssh);
}
/*
* remove_remote -- (internal) remove remote pool
*/
static int
remove_remote(const char *target, const char *pool_set)
{
#ifdef USE_RPMEM
char cask = 'y';
switch (ask_mode) {
case ASK_ALWAYS:
cask = '?';
break;
case ASK_NEVER:
case ASK_SOMETIMES:
cask = 'y';
break;
}
if (ask_Yn(cask, "remove remote pool '%s' on '%s'?",
pool_set, target) != 'y')
return 0;
struct rpmem_target_info *info = rpmem_target_parse(target);
if (!info)
goto err_parse;
struct rpmem_ssh *ssh;
if (force) {
ssh = rpmem_ssh_exec(info, "--remove",
pool_set, "--force", NULL);
} else {
ssh = rpmem_ssh_exec(info, "--remove",
pool_set, NULL);
}
if (!ssh)
goto err_ssh_exec;
int ret = 0;
if (rpmem_ssh_monitor(ssh, 0))
ret = 1;
if (rpmem_ssh_close(ssh))
ret = 1;
if (ret)
goto err_ssh_exec;
rpmem_target_free(info);
outv(1, "removed '%s' on '%s'\n",
pool_set, target);
return ret;
err_ssh_exec:
rpmem_target_free(info);
err_parse:
if (!force)
outv_err("cannot remove '%s' on '%s'", pool_set, target);
return 1;
#else
outv_err("remote replication not supported");
return 1;
#endif
}