Rename cli/ to cmd/, fix cmake install
This commit is contained in:
Vitaliy Filippov
@@ -0,0 +1,203 @@
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// Copyright (c) MIND Software LLC, 2023 (info@mindsw.io)
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// I accept Vitastor CLA: see CLA-en.md for details
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// Copyright (c) Vitaliy Filippov, 2024
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// License: VNPL-1.1 (see README.md for details)
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#include <ctype.h>
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#include "cli.h"
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#include "cli_pool_cfg.h"
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#include "cluster_client.h"
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#include "str_util.h"
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struct pool_changer_t
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{
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cli_tool_t *parent;
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// Required parameters (id/name)
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pool_id_t pool_id = 0;
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std::string pool_name;
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json11::Json::object cfg;
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json11::Json::object new_cfg;
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bool force = false;
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json11::Json old_cfg;
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int state = 0;
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cli_result_t result;
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// Updated pools
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json11::Json new_pools;
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// Expected pools mod revision
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uint64_t pools_mod_rev;
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bool is_done() { return state == 100; }
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void loop()
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{
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if (state == 1)
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goto resume_1;
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else if (state == 2)
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goto resume_2;
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pool_id = stoull_full(cfg["old_name"].string_value());
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if (!pool_id)
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{
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pool_name = cfg["old_name"].string_value();
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if (pool_name == "")
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{
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result = (cli_result_t){ .err = ENOENT, .text = "Pool ID or name is required to modify it" };
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state = 100;
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return;
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}
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}
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resume_0:
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// Get pools from etcd
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parent->etcd_txn(json11::Json::object {
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{ "success", json11::Json::array {
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json11::Json::object {
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{ "request_range", json11::Json::object {
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{ "key", base64_encode(parent->cli->st_cli.etcd_prefix+"/config/pools") },
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} }
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},
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} },
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});
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state = 1;
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resume_1:
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if (parent->waiting > 0)
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return;
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if (parent->etcd_err.err)
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{
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result = parent->etcd_err;
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state = 100;
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return;
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}
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{
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// Parse received pools from etcd
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auto kv = parent->cli->st_cli.parse_etcd_kv(parent->etcd_result["responses"][0]["response_range"]["kvs"][0]);
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// Get pool by name or ID
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old_cfg = json11::Json();
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if (pool_name != "")
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{
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for (auto & pce: kv.value.object_items())
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{
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if (pce.second["name"] == pool_name)
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{
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pool_id = stoull_full(pce.first);
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old_cfg = pce.second;
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break;
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}
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}
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}
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else
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{
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pool_name = std::to_string(pool_id);
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old_cfg = kv.value[pool_name];
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}
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if (!old_cfg.is_object())
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{
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result = (cli_result_t){ .err = ENOENT, .text = "Pool "+pool_name+" does not exist" };
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state = 100;
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return;
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}
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// Update pool
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new_cfg = cfg;
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result.text = validate_pool_config(new_cfg, old_cfg, parent->cli->st_cli.global_block_size,
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parent->cli->st_cli.global_bitmap_granularity, force);
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if (result.text != "")
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{
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result.err = EINVAL;
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state = 100;
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return;
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}
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if (new_cfg.find("used_for_fs") != new_cfg.end() && !force)
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{
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// Check that pool doesn't have images
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auto img_it = parent->cli->st_cli.inode_config.lower_bound(INODE_WITH_POOL(pool_id, 0));
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if (img_it != parent->cli->st_cli.inode_config.end() && INODE_POOL(img_it->first) == pool_id &&
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img_it->second.name == new_cfg["used_for_fs"].string_value())
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{
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// Only allow metadata image to exist in the FS pool
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img_it++;
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}
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if (img_it != parent->cli->st_cli.inode_config.end() && INODE_POOL(img_it->first) == pool_id)
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{
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result = (cli_result_t){ .err = ENOENT, .text = "Pool "+pool_name+" has block images, delete them before using it for VitastorFS" };
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state = 100;
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return;
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}
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}
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// Update pool
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auto pls = kv.value.object_items();
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pls[std::to_string(pool_id)] = new_cfg;
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new_pools = pls;
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// Expected pools mod revision
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pools_mod_rev = kv.mod_revision;
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}
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// Update pools in etcd
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parent->etcd_txn(json11::Json::object {
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{ "compare", json11::Json::array {
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json11::Json::object {
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{ "target", "MOD" },
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{ "key", base64_encode(parent->cli->st_cli.etcd_prefix+"/config/pools") },
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{ "result", "LESS" },
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{ "mod_revision", pools_mod_rev+1 },
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}
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} },
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{ "success", json11::Json::array {
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json11::Json::object {
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{ "request_put", json11::Json::object {
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{ "key", base64_encode(parent->cli->st_cli.etcd_prefix+"/config/pools") },
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{ "value", base64_encode(new_pools.dump()) },
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} },
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},
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} },
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});
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state = 2;
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resume_2:
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if (parent->waiting > 0)
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return;
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if (parent->etcd_err.err)
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{
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result = parent->etcd_err;
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state = 100;
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return;
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}
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if (!parent->etcd_result["succeeded"].bool_value())
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{
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// CAS failure - retry
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fprintf(stderr, "Warning: pool configuration was modified in the meantime by someone else\n");
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goto resume_0;
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}
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// Successfully updated pool
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result = (cli_result_t){
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.err = 0,
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.text = "Pool "+pool_name+" updated",
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.data = new_pools,
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};
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state = 100;
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}
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};
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std::function<bool(cli_result_t &)> cli_tool_t::start_pool_modify(json11::Json cfg)
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{
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auto pool_changer = new pool_changer_t();
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pool_changer->parent = this;
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pool_changer->cfg = cfg.object_items();
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pool_changer->force = cfg["force"].bool_value();
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return [pool_changer](cli_result_t & result)
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{
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pool_changer->loop();
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if (pool_changer->is_done())
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{
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result = pool_changer->result;
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delete pool_changer;
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return true;
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}
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return false;
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};
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}
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