/*
* 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
}
/*
* clnt_wait_disconnect -- wait for disconnection
*/
void
clnt_wait_disconnect(struct rpmem_ssh *ssh)
{
int ret;
ret = rpmem_ssh_monitor(ssh, 0);
UT_ASSERTne(ret, 1);
}
/*
* rpmem_obc_monitor -- monitor connection with target node
*
* The nonblock variable indicates whether this function should return
* immediately (= 1) or may block (= 0).
*
* If the function detects that socket was closed by remote peer it is
* closed on local side and set to -1, so there is no need to call
* rpmem_obc_disconnect function. Please take a look at functions'
* descriptions to see which functions cannot be used if the connection
* has been already closed.
*
* This function expects there is no data pending on socket, if any data
* is pending this function returns an error and sets errno to EPROTO.
*
* Return values:
* 0 - not connected
* 1 - connected
* < 0 - error
*/
int
rpmem_obc_monitor(struct rpmem_obc *rpc, int nonblock)
{
if (!rpmem_obc_is_connected(rpc))
return 0;
return rpmem_ssh_monitor(rpc->ssh, nonblock);
}
/*
* 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
}
