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Class channel_peeker

template <typename T typename T, typename M typename M>

Class List > channel_peeker

Extension of channel_reader for subroutines.More...

• #include <channel.hpp>

Inherits the following classes: channel_reader

Public Types inherited from channel_reader

See channel_reader

Type	Name
typedef channel< T, M >	channel_type
typedef T *	pointer
typedef T &	reference
typedef T	value_type

Public Attributes inherited from channel_reader

See channel_reader

Type	Name
channel_type *	chan Next reader in channel.
channel_reader *	next = = nullptr

Public Functions

Type	Name
bool	acquire (T & storage) noexcept Move a value from matches writer to designated storage. After then, resume thewriter coroutine.
	channel_peeker (channel_type & ch) noexcept
void	peek () noexcept const Since there is no suspension for the peeker , the implementation will use scoped locking.

Public Functions inherited from channel_reader

See channel_reader

Type	Name
bool	await_ready () noexcept const Lock the channel and find available channel_writer __
auto	await_resume () noexcept Returns value from writer coroutine, and bool indicator for the associtated channel's destruction.
void	await_suspend (coroutine_handle< void > coro) noexcept Push to the channel and wait for channel_writer .
	~channel_reader () noexcept

Protected Attributes inherited from channel_reader

See channel_reader

Type	Name
union channel_reader::@0	@1 Resumeable Handle.
void *	frame Address of value.
pointer	ptr

Protected Functions inherited from channel_reader

See channel_reader

Type	Name
	channel_reader (channel_type & ch) noexcept
	channel_reader (const channel_reader &) noexcept
	channel_reader (channel_reader &&) noexcept
channel_reader &	operator= (const channel_reader &) noexcept
channel_reader &	operator= (channel_reader &&) noexcept

Detailed Description

Template parameters:

• T type of the element
• M mutex for the channel

See also: channel_reader

Public Functions Documentation

function acquire

inline bool channel_peeker::acquire (
    T & storage
) noexcept

Note:

Unless the caller has invoked peek, nothing will happen.

bool peek_channel(channel<string>& ch, string& out){
   peeker p{ch};
   p.peek();
   return p.acquire(out);
}

Parameters:

• storage memory object to store the value from writer

Returns:

true Acquired the value

Returns:

false No writer found or peek is not invoked

See also: peek

function channel_peeker [3/3]

inline explicit channel_peeker::channel_peeker (
    channel_type & ch
) noexcept

function peek

inline void channel_peeker::peek () noexcept const

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The documentation for this class was generated from the following file interface/coroutine/channel.hpp