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construct/matrix/sync.cc

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C++

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2019 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
namespace ircd::m::sync
{
extern const ctx::pool::opts pool_opts;
}
decltype(ircd::m::sync::log)
ircd::m::sync::log
{
"m.sync", 's'
};
decltype(ircd::m::sync::pool_opts)
ircd::m::sync::pool_opts
{
ctx::DEFAULT_STACK_SIZE, 0, -1, 0
};
decltype(ircd::m::sync::pool)
ircd::m::sync::pool
{
"m.sync", pool_opts
};
template<>
decltype(ircd::util::instance_multimap<std::string, ircd::m::sync::item, std::less<>>::map)
ircd::util::instance_multimap<std::string, ircd::m::sync::item, std::less<>>::map
{};
template<>
decltype(ircd::util::instance_list<ircd::m::sync::data>::allocator)
ircd::util::instance_list<ircd::m::sync::data>::allocator
{};
template<>
decltype(ircd::util::instance_list<ircd::m::sync::data>::list)
ircd::util::instance_list<ircd::m::sync::data>::list
{
allocator
};
bool
ircd::m::sync::for_each(const item_closure_bool &closure)
{
auto it(begin(item::map));
for(; it != end(item::map); ++it)
if(!closure(*it->second))
return false;
return true;
}
bool
ircd::m::sync::for_each(const string_view &prefix,
const item_closure_bool &closure)
{
const auto depth
{
token_count(prefix, '.')
};
auto it
{
item::map.lower_bound(prefix)
};
for(; it != end(item::map); ++it)
{
const auto item_depth
{
token_count(it->first, '.')
};
if(item_depth > depth + 1)
continue;
if(it->first == prefix)
continue;
if(item_depth < depth + 1)
break;
if(!closure(*it->second))
return false;
}
return true;
}
//
// sync/since.h
//
ircd::m::sync::since
ircd::m::sync::make_since(const string_view &input)
{
string_view part[4];
const auto parts
{
input && input != "0"_sv?
ircd::tokens(input, '_', part):
0UL
};
// prefix
assert(!part[0] || part[0] == "ctor");
return
{
// since
part[1]?
lex_cast<event::idx>(part[1]):
0UL,
// snapshot
part[2]?
lex_cast<event::idx>(part[2]):
0UL,
// flags
part[3]
};
}
ircd::string_view
ircd::m::sync::make_since(const mutable_buffer &buf,
const int64_t &val,
const string_view &flags)
{
const string_view &prefix
{
val?
"ctor_"_sv:
""_sv
};
const string_view &snapshot
{
flags?
"_0_"_sv:
flags
};
return fmt::sprintf
{
buf, "%s%lu%s%s",
prefix,
val,
snapshot,
flags,
};
}
ircd::string_view
ircd::m::sync::make_since(const mutable_buffer &buf,
const m::events::range &val,
const string_view &flags)
{
return fmt::sprintf
{
buf, "ctor_%lu_%lu%s%s",
val.first,
val.second,
flags?
"_"_sv:
flags,
flags,
};
}
//
// sync/stats.h
//
decltype(ircd::m::sync::stats::info)
ircd::m::sync::stats::info
{
{ "name", "ircd.m.sync.stats.info" },
{ "default", false },
};
//
// sync/item.h
//
//
// item::item
//
ircd::m::sync::item::item(std::string name,
handle polylog,
handle linear,
const json::members &feature)
:instance_multimap
{
std::move(name)
}
,conf_name
{
fmt::snstringf{128, "ircd.m.sync.%s.enable", this->name()},
fmt::snstringf{128, "ircd.m.sync.%s.stats.debug", this->name()},
}
,enable
{
{ "name", conf_name[0] },
{ "default", true },
}
,stats_debug
{
{ "name", conf_name[1] },
{ "default", false },
}
,_polylog
{
std::move(polylog)
}
,_linear
{
std::move(linear)
}
,feature
{
feature
}
,opts
{
this->feature
}
,phased
{
opts.get<bool>("phased", false)
}
,prefetch
{
opts.get<bool>("prefetch", false)
}
{
log::debug
{
log, "Registered sync item(%p) '%s' (%zu features)",
this,
this->name(),
opts.size(),
};
}
ircd::m::sync::item::~item()
noexcept
{
log::debug
{
log, "Unregistered sync item(%p) '%s'",
this,
this->name()
};
}
bool
ircd::m::sync::item::polylog(data &data)
try
{
// Skip the item if disabled by configuration
if(!enable)
return false;
if(data.phased && !phased && int64_t(data.range.first) < 0)
return false;
if(data.prefetch && !prefetch)
return false;
#ifdef RB_DEBUG
sync::stats stats
{
data.stats && (stats::info || stats_debug)?
*data.stats:
sync::stats{}
};
if(data.stats && (stats::info || stats_debug))
stats.timer = {};
#endif
const bool result
{
_polylog(data)
};
const bool ret
{
data.prefetch && prefetch?
false:
result
};
#ifdef RB_DEBUG
if(data.stats && (stats::info || stats_debug))
{
//data.out.flush();
char tmbuf[32];
log::debug
{
log, "polylog %s commit:%b '%s' %s",
loghead(data),
ret,
name(),
ircd::pretty(tmbuf, stats.timer.at<microseconds>(), true)
};
}
#endif
this_ctx::interruption_point();
return ret;
}
catch(const ctx::interrupted &)
{
throw;
}
catch(const std::system_error &)
{
throw;
}
catch(const std::bad_function_call &e)
{
log::dwarning
{
log, "polylog %s '%s' missing handler :%s",
loghead(data),
name(),
e.what()
};
return false;
}
catch(const m::error &e)
{
log::derror
{
log, "polylog %s '%s' :%s %s",
loghead(data),
name(),
e.what(),
e.content
};
return false;
}
catch(const std::exception &e)
{
log::critical
{
log, "polylog %s '%s' :%s",
loghead(data),
name(),
e.what()
};
return false;
}
bool
ircd::m::sync::item::linear(data &data)
try
{
if(!enable)
return false;
#ifdef RB_DEBUG
sync::stats stats
{
data.stats && (stats::info || stats_debug)?
*data.stats:
sync::stats{}
};
if(data.stats && (stats::info || stats_debug))
stats.timer = {};
#endif
const bool ret
{
_linear(data)
};
#ifdef RB_DEBUG
if(data.stats && (stats::info || stats_debug))
{
//data.out.flush();
char tmbuf[32];
log::debug
{
log, "linear %s commit:%b '%s' %s",
loghead(data),
ret,
name(),
ircd::pretty(tmbuf, stats.timer.at<microseconds>(), true)
};
}
#endif
return ret;
}
catch(const ctx::interrupted &)
{
throw;
}
catch(const std::system_error &)
{
throw;
}
catch(const std::bad_function_call &e)
{
char rembuf[128];
log::dwarning
{
log, "linear %s '%s' missing handler :%s",
loghead(data),
name(),
e.what()
};
return false;
}
catch(const m::error &e)
{
log::derror
{
log, "linear %s '%s' :%s %s",
loghead(data),
name(),
e.what(),
e.content
};
return false;
}
catch(const std::exception &e)
{
log::critical
{
log, "linear %s '%s' :%s",
loghead(data),
name(),
e.what()
};
return false;
}
size_t
ircd::m::sync::item::children()
const
{
size_t ret(0);
sync::for_each(this->name(), [&ret]
(auto &item)
{
++ret;
return true;
});
return ret;
}
ircd::string_view
ircd::m::sync::item::member_name()
const
{
return token_last(name(), '.');
}
ircd::string_view
ircd::m::sync::item::name()
const
{
return this->instance_multimap::it->first;
}
//
// sync/data.h
//
ircd::string_view
ircd::m::sync::loghead(const data &data)
{
thread_local char headbuf[256], rembuf[128], iecbuf[2][64], tmbuf[32];
const auto remstr
{
data.client?
string(rembuf, ircd::remote(*data.client)):
string_view{}
};
const auto flush_bytes
{
data.stats?
data.stats->flush_bytes:
0U
};
const auto flush_count
{
data.stats?
data.stats->flush_count:
0U
};
const auto tmstr
{
data.stats?
ircd::pretty(tmbuf, data.stats->timer.at<milliseconds>(), true):
string_view{}
};
return fmt::sprintf
{
headbuf, "%s %s %s %ld:%lu|%lu%s%s chunk:%zu sent:%s of %s in %s",
remstr,
string_view{data.user.user_id},
string_view{data.device_id},
data.range.first,
data.range.second,
vm::sequence::retired,
data.phased?
"|CRAZY"_sv:
data.reflow_full_state?
"|REFLOW"_sv:
(data.args && data.args->full_state)?
"|FULLSTATE"_sv:
""_sv,
data.prefetch?
"|PREFETCH"_sv:
""_sv,
flush_count,
ircd::pretty(iecbuf[1], iec(flush_bytes)),
data.out?
ircd::pretty(iecbuf[0], iec(flush_bytes + size(data.out->completed()))):
string_view{},
tmstr
};
}
//
// data::data
//
ircd::m::sync::data::data(const m::user &user,
const m::events::range &range,
ircd::client *const &client,
json::stack *const &out,
sync::stats *const &stats,
const sync::args *const &args,
const device::id &device_id)
:range
{
range
}
,stats
{
stats
}
,client
{
client
}
,args
{
args
}
,user
{
user
}
,user_room
{
user
}
,user_state
{
user_room
}
,user_rooms
{
user
}
,filter_buf
{
this->args?
m::filter::get(this->args->filter_id, user):
std::string{}
}
,filter
{
json::object{filter_buf}
}
,device_id
{
device_id
}
,out
{
out
}
{
}
ircd::m::sync::data::~data()
noexcept
{
}
//
// sync/args.h
//
ircd::conf::item<ircd::milliseconds>
ircd::m::sync::args::timeout_max
{
{ "name", "ircd.client.sync.timeout.max" },
{ "default", 180 * 1000L },
};
ircd::conf::item<ircd::milliseconds>
ircd::m::sync::args::timeout_min
{
{ "name", "ircd.client.sync.timeout.min" },
{ "default", 15 * 1000L },
};
ircd::conf::item<ircd::milliseconds>
ircd::m::sync::args::timeout_default
{
{ "name", "ircd.client.sync.timeout.default" },
{ "default", 90 * 1000L },
};
//
// args::args
//
ircd::m::sync::args::args(const ircd::resource::request &request)
try
:filter_id
{
request.query["filter"]
}
,since
{
sync::make_since(request.query["since"])
}
,next_batch
{
request.query["next_batch"]?
lex_cast<uint64_t>(request.query["next_batch"]):
std::get<1>(since)?
std::get<1>(since):
-1UL
}
,timesout
{
ircd::now<system_point>() + std::clamp
(
request.query.get("timeout", milliseconds(timeout_default)),
milliseconds(timeout_min),
milliseconds(timeout_max)
)
}
,full_state
{
request.query.get("full_state", false)
|| has(std::get<2>(since), 'P')
}
,set_presence
{
request.query.get("set_presence", true)
}
,phased
{
request.query.get("phased", true)
}
,semaphore
{
request.query.get("semaphore", false)
}
{
}
catch(const bad_lex_cast &e)
{
throw m::BAD_REQUEST
{
"Since parameter invalid :%s", e.what()
};
}