Events.hpp File Reference

Event interest and trigger flags for file-descriptor watching (Linux/epoll). More...

Include dependency graph for Events.hpp:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Enumerations
enum class	dfx::FdWatch::EventInterest { dfx::FdWatch::Read = 0x01 , dfx::FdWatch::Write = 0x02 , dfx::FdWatch::ReadClose = 0x04 , dfx::FdWatch::OneShot = 0x08 }
	Event types a watcher can subscribe to for a given file descriptor. More...
enum class	dfx::FdWatch::EventTrigger {   dfx::FdWatch::Readable = 0x01 , dfx::FdWatch::Writable = 0x02 , dfx::FdWatch::PeerClosed = 0x04 , dfx::FdWatch::Hangup = 0x08 ,   dfx::FdWatch::Error = 0x10 }
	Event types that can be delivered by the poller for a given file descriptor. More...

Functions
	dfx::FdWatch::DECLARE_FLAGS (EventInterests, EventInterest)
	dfx::FdWatch::DECLARE_FLAGS (EventTriggers, EventTrigger)
uint32_t	dfx::FdWatch::toNativeEPollEvent (EventInterests events) noexcept
	Convert abstract interests into a native epoll events bitmask.
EventTriggers	dfx::FdWatch::fromNativeEPollEvent (uint32_t events) noexcept
	Convert a native epoll events bitmask into abstract triggers.
	DECLARE_ENUM_STRING_FUNCTIONS (dfx::FdWatch::EventInterest)
	DECLARE_ENUM_STRING_FUNCTIONS (dfx::FdWatch::EventTrigger)
	DECLARE_STD_FORMATTER_FOR_FLAGS (dfx::FdWatch::EventInterests)
	DECLARE_STD_FORMATTER_FOR_FLAGS (dfx::FdWatch::EventTriggers)

Detailed Description

Event interest and trigger flags for file-descriptor watching (Linux/epoll).

This header defines:

• dfx::FdWatch::EventInterest : what the user wants to be notified about (subscriptions)
• dfx::FdWatch::EventTrigger : what actually happened (notifications)
• Flag wrapper types (dfx::FdWatch::EventInterests and dfx::FdWatch::EventTriggers)
• Conversion helpers to/from native epoll event bitmasks.

The design intentionally separates interests (requested monitoring) from triggers (delivered notifications), since a single native readiness mask may map differently depending on what was armed.