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ircd::run: Rename level IDLE to LOAD; minor reorg.

This commit is contained in:
Jason Volk 2020-03-16 12:24:58 -07:00
parent 59ee170817
commit c815de3621
5 changed files with 47 additions and 50 deletions

View file

@ -239,7 +239,7 @@ noexcept try
// This object registers a callback for a specific event in libircd; the
// closure is called from the main context (#1) running ircd::main().
// after libircd is ready for service in runlevel IDLE but before entering
// after libircd is ready for service in runlevel LOAD but before entering
// runlevel RUN. It is called again immediately after entering runlevel
// QUIT, but before any functionality of libircd destructs. This cues us
// to start and stop the homeserver.
@ -251,7 +251,7 @@ noexcept try
// 2 This branch is taken the first time this function is called,
// and not taken the second time.
if(level == ircd::run::level::IDLE && !context && !nomatrix)
if(level == ircd::run::level::LOAD && !context && !nomatrix)
{
// 3 Launch the homeserver context (asynchronous).
context = { "matrix", ircd::context::POST, homeserver };

View file

@ -36,6 +36,43 @@ namespace ircd::run
extern const enum level &chadburn;
}
/// The run::level allows all observers to know the coarse state of IRCd and to
/// react accordingly. This can be used by the embedder of libircd to know
/// when it's safe to use or delete libircd resources. It is also used
/// similarly by the library and its modules. Only one runlevel is active at
/// any time.
///
/// * HALT is the off mode. Nothing is/will be running in libircd until
/// an invocation of ircd::init();
///
/// * READY is the state after calling ircd::init(). Leaving READY is done with
/// the user either calling their ios.run() to start executing tasks or calling
/// ircd::quit() to HALT again.
///
/// * START indicates the daemon is executing its startup procedures. Leaving
/// the START state occurs internally when there is success or a fatal error.
///
/// * RUN is the service mode. Full client and application functionality exists
/// in this mode. Leaving the RUN mode is done with ircd::quit();
///
/// * QUIT indicates the daemon is executing the shutdown procedures. This
/// will eventually return back to the HALT state.
///
/// * FAULT is a special mode indicating something really bad. The exact
/// details of this mode are ambiguous. Users do not have to handle this.
///
enum class ircd::run::level
:int
{
FAULT = -1, ///< Unrecoverable fault.
HALT = 0, ///< x <-- IRCd Powered off.
READY = 1, ///< | | Ready for user to run ios event loop.
START = 2, ///< | | Starting internal subsystems.
LOAD = 3, ///< | | Load user application.
RUN = 4, ///< O | IRCd in service.
QUIT = 5, ///< --> ^ Clean shutdown in progress.
};
/// An instance of this class registers itself to be called back when
/// the ircd::run::level has changed. The context for this callback differs
/// based on the level argument; not all invocations are on an ircd::ctx, etc.
@ -88,43 +125,3 @@ struct ircd::run::changed
changed() noexcept;
~changed() noexcept;
};
/// The run::level allows all observers to know the coarse state of IRCd and to
/// react accordingly. This can be used by the embedder of libircd to know
/// when it's safe to use or delete libircd resources. It is also used
/// similarly by the library and its modules. Only one runlevel is active at
/// any time.
///
/// * HALT is the off mode. Nothing is/will be running in libircd until
/// an invocation of ircd::init();
///
/// * READY is the state after calling ircd::init(). Leaving READY is done with
/// the user either calling their ios.run() to start executing tasks or calling
/// ircd::quit() to HALT again.
///
/// * START indicates the daemon is executing its startup procedures. Leaving
/// the START state occurs internally when there is success or a fatal error.
///
/// * IDLE indicates the library is ready for use. The user can load their
/// application in this mode before transitioning to RUN.
///
/// * RUN is the service mode. Full client and application functionality exists
/// in this mode. Leaving the RUN mode is done with ircd::quit();
///
/// * QUIT indicates the daemon is executing the shutdown procedures. This
/// will eventually return back to the HALT state.
///
/// * FAULT is a special mode indicating something really bad. The exact
/// details of this mode are ambiguous. Users do not have to handle this.
///
enum class ircd::run::level
:int
{
FAULT = -1, ///< Unrecoverable fault.
HALT = 0, ///< x <-- IRCd Powered off.
READY = 1, ///< | | Ready for user to run ios event loop.
START = 2, ///< | | Starting internal subsystems.
IDLE = 3, ///< | | Ready for user to load application.
RUN = 4, ///< O | IRCd in service.
QUIT = 5, ///< --> ^ Clean shutdown in progress.
};

View file

@ -200,7 +200,7 @@ noexcept
return true;
}
case run::level::IDLE:
case run::level::LOAD:
case run::level::START:
{
ctx::terminate(*main_context);
@ -251,7 +251,7 @@ noexcept
case run::level::QUIT:
return;
case run::level::IDLE:
case run::level::LOAD:
case run::level::RUN:
break;
}
@ -318,9 +318,9 @@ noexcept try
ircd::run::set(run::level::QUIT);
}};
// IRCd will now transition to the IDLE state allowing library user's to
// IRCd will now transition to the LOAD state allowing library user's to
// load their applications using the run::changed callback.
run::set(run::level::IDLE);
run::set(run::level::LOAD);
// IRCd will now transition to the RUN state indicating full functionality.
run::set(run::level::RUN);

View file

@ -123,7 +123,7 @@ try
{
case level::HALT: break;
case level::QUIT: break;
case level::IDLE: throw;
case level::LOAD: throw;
default: throw;
}
@ -156,7 +156,7 @@ catch(const std::exception &e)
{
switch(new_level)
{
case level::IDLE: throw;
case level::LOAD: throw;
default: break;
}
@ -178,7 +178,7 @@ ircd::run::reflect(const enum run::level &level)
case level::HALT: return "HALT";
case level::READY: return "READY";
case level::START: return "START";
case level::IDLE: return "IDLE";
case level::LOAD: return "LOAD";
case level::RUN: return "RUN";
case level::QUIT: return "QUIT";
case level::FAULT: return "FAULT";

View file

@ -180,7 +180,7 @@ void
ircd::m::on_load()
try
{
assert(ircd::run::level == run::level::IDLE);
assert(ircd::run::level == run::level::LOAD);
}
catch(const m::error &e)
{