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Split one big cmd.cpp into multiple files

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Vitaliy Filippov
2021-09-26 00:48:08 +03:00
parent 2dd2f29f46
commit 4d6b85fe67
8 changed files with 1471 additions and 1413 deletions
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src/cli.cpp
+241
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@@ -0,0 +1,241 @@
// Copyright (c) Vitaliy Filippov, 2019+
// License: VNPL-1.1 (see README.md for details)
/**
* CLI tool
* Currently can (a) remove inodes and (b) merge snapshot/clone layers
*/
#include <vector>
#include <algorithm>
#include "cli.h"
#include "epoll_manager.h"
#include "cluster_client.h"
#include "pg_states.h"
#include "base64.h"
static const char *exe_name = NULL;
json11::Json::object cli_tool_t::parse_args(int narg, const char *args[])
{
json11::Json::object cfg;
json11::Json::array cmd;
cfg["progress"] = "1";
for (int i = 1; i < narg; i++)
{
if (!strcmp(args[i], "-h") || !strcmp(args[i], "--help"))
{
help();
}
else if (args[i][0] == '-' && args[i][1] == '-')
{
const char *opt = args[i]+2;
cfg[opt] = !strcmp(opt, "json") || !strcmp(opt, "wait-list") || i == narg-1 ? "1" : args[++i];
}
else
{
cmd.push_back(std::string(args[i]));
}
}
if (!cmd.size())
{
std::string exe(exe_name);
if (exe.substr(exe.size()-11) == "vitastor-rm")
{
cmd.push_back("rm");
}
}
cfg["command"] = cmd;
return cfg;
}
void cli_tool_t::help()
{
printf(
"Vitastor inode removal tool\n"
"(c) Vitaliy Filippov, 2020 (VNPL-1.1)\n\n"
"USAGE:\n"
" %s rm [--etcd_address <etcd_address>] --pool <pool> --inode <inode>\n"
" [--wait-list] [--iodepth 32] [--parallel_osds 4] [--progress 1]\n"
" %s merge [--etcd_address <etcd_address>] <from> <to> [--target <from>]\n"
" [--iodepth 128] [--progress 1] [--cas 0|1]\n",
exe_name, exe_name
);
exit(0);
}
void cli_tool_t::change_parent(inode_t cur, inode_t new_parent)
{
auto cur_cfg_it = cli->st_cli.inode_config.find(cur);
if (cur_cfg_it == cli->st_cli.inode_config.end())
{
fprintf(stderr, "Inode 0x%lx disappeared\n", cur);
exit(1);
}
inode_config_t *cur_cfg = &cur_cfg_it->second;
std::string cur_name = cur_cfg->name;
std::string cur_cfg_key = base64_encode(cli->st_cli.etcd_prefix+
"/config/inode/"+std::to_string(INODE_POOL(cur))+
"/"+std::to_string(INODE_NO_POOL(cur)));
json11::Json::object cur_cfg_json = json11::Json::object {
{ "name", cur_cfg->name },
{ "size", cur_cfg->size },
};
if (new_parent)
{
if (INODE_POOL(cur) != INODE_POOL(new_parent))
cur_cfg_json["parent_pool"] = (uint64_t)INODE_POOL(new_parent);
cur_cfg_json["parent_id"] = (uint64_t)INODE_NO_POOL(new_parent);
}
if (cur_cfg->readonly)
{
cur_cfg_json["readonly"] = true;
}
waiting++;
cli->st_cli.etcd_txn(json11::Json::object {
{ "compare", json11::Json::array {
json11::Json::object {
{ "target", "MOD" },
{ "key", cur_cfg_key },
{ "result", "LESS" },
{ "mod_revision", cur_cfg->mod_revision+1 },
},
} },
{ "success", json11::Json::array {
json11::Json::object {
{ "request_put", json11::Json::object {
{ "key", cur_cfg_key },
{ "value", base64_encode(json11::Json(cur_cfg_json).dump()) },
} }
},
} },
}, ETCD_SLOW_TIMEOUT, [this, new_parent, cur, cur_name](std::string err, json11::Json res)
{
if (err != "")
{
fprintf(stderr, "Error changing parent of %s: %s\n", cur_name.c_str(), err.c_str());
exit(1);
}
if (!res["succeeded"].bool_value())
{
fprintf(stderr, "Inode %s was modified during snapshot deletion\n", cur_name.c_str());
exit(1);
}
if (new_parent)
{
auto new_parent_it = cli->st_cli.inode_config.find(new_parent);
std::string new_parent_name = new_parent_it != cli->st_cli.inode_config.end()
? new_parent_it->second.name : "<unknown>";
printf(
"Parent of layer %s (inode %lu in pool %u) changed to %s (inode %lu in pool %u)\n",
cur_name.c_str(), INODE_NO_POOL(cur), INODE_POOL(cur),
new_parent_name.c_str(), INODE_NO_POOL(new_parent), INODE_POOL(new_parent)
);
}
else
{
printf(
"Parent of layer %s (inode %lu in pool %u) detached\n",
cur_name.c_str(), INODE_NO_POOL(cur), INODE_POOL(cur)
);
}
waiting--;
ringloop->wakeup();
});
}
inode_config_t* cli_tool_t::get_inode_cfg(const std::string & name)
{
for (auto & ic: cli->st_cli.inode_config)
{
if (ic.second.name == name)
{
return &ic.second;
}
}
fprintf(stderr, "Layer %s not found\n", name.c_str());
exit(1);
}
void cli_tool_t::run(json11::Json cfg)
{
json11::Json::array cmd = cfg["command"].array_items();
if (!cmd.size())
{
fprintf(stderr, "command is missing\n");
exit(1);
}
else if (cmd[0] == "rm")
{
// Delete inode
action_cb = start_rm(cfg);
}
else if (cmd[0] == "merge")
{
// Merge layer data without affecting metadata
action_cb = start_merge(cfg);
}
else if (cmd[0] == "flatten")
{
// Merge layer data without affecting metadata
action_cb = start_flatten(cfg);
}
else if (cmd[0] == "snap-rm")
{
// Remove multiple snapshots and rebase their children
action_cb = start_snap_rm(cfg);
}
else
{
fprintf(stderr, "unknown command: %s\n", cmd[0].string_value().c_str());
exit(1);
}
iodepth = cfg["iodepth"].uint64_value();
if (!iodepth)
iodepth = 32;
parallel_osds = cfg["parallel_osds"].uint64_value();
if (!parallel_osds)
parallel_osds = 4;
log_level = cfg["log_level"].int64_value();
progress = cfg["progress"].uint64_value() ? true : false;
list_first = cfg["wait-list"].uint64_value() ? true : false;
// Create client
ringloop = new ring_loop_t(512);
epmgr = new epoll_manager_t(ringloop);
cli = new cluster_client_t(ringloop, epmgr->tfd, cfg);
cli->on_ready([this]()
{
// Initialize job
consumer.loop = [this]()
{
if (action_cb != NULL)
{
bool done = action_cb();
if (done)
{
action_cb = NULL;
}
}
ringloop->submit();
};
ringloop->register_consumer(&consumer);
consumer.loop();
});
// Loop until it completes
while (action_cb != NULL)
{
ringloop->loop();
ringloop->wait();
}
}
int main(int narg, const char *args[])
{
setvbuf(stdout, NULL, _IONBF, 0);
setvbuf(stderr, NULL, _IONBF, 0);
exe_name = args[0];
cli_tool_t *p = new cli_tool_t();
p->run(cli_tool_t::parse_args(narg, args));
return 0;
}