table of contents
| shevek::fd(3) | Library Functions Manual | shevek::fd(3) |
NAME¶
shevek::fd -
The fd class is a generic wrapper for a file descriptor to use it in the Glib event loop.
SYNOPSIS¶
#include <fd.hh>
Inherits shevek::refbase.
Inherited by shevek::file, and shevek::socket.
Public Types¶
typedef sigc::slot0< void > read_custom_t
Function pointer to call when data is read from fd. typedef
sigc::slot1< bool,
std::string & > read_t"
Function pointer to call when fd is ready for reading. typedef
sigc::slot1< void,
std::string const & > read_lines_t"
Function pointer to call when a complete line has arrived. typedef
sigc::slot0< void > error_t
Function pointer to call when an error occurs. typedef sigc::slot0<
void > write_done_t
Function pointer to call when data has been written. typedef
sigc::slot1< void,
std::string & > filter_t"
Function pointer to filter in and outgoing data. typedef
sigc::slot0< void > flush_t
Function pointer to signal that all data is flushed after unread ()
Public Member Functions¶
void read_custom (read_custom_t cb)
Poll for read with a custom callback to poll. void
read_priority_custom (read_custom_t cb)
Poll for priority read with a custom callback to poll. void
read (read_t cb)
Poll for read and set read callback (resets custom callback) void
read_priority (read_t cb)
Poll for priority read and set read callback (resets custom callback)
void read_lines (read_lines_t cb)
Poll for read and set read lines callback (resets custom and read
callback). Polls for priority read as well. void unread (bool
flush_buffer=false, flush_t cb=flush_t())
Stop polling for read (including priority read). void write
(std::string const &data, write_done_t cb=write_done_t())
Write data and set a callback (defaults to none). void
write_raw (std::string const &data, write_done_t
cb=write_done_t())
Write data, ignoring the filter, and set a callback (defaults to none).
bool write_block (relative_time
timeout=relative_time(-1, 0))
Block until write buffer is empty. std::string & read_block
(relative_time timeout=relative_time(-1, 0))
Block until data is read, try writing if there is a write buffer.
std::string read_line_block (relative_time
timeout=relative_time(-1, 0))
Call read_block until a line has been read, or the timeout expires.
void set_fd (int fd)
Change file descriptor. void in_filter (filter_t cb)
If set, incoming data is filtered through this callback before it is put
into the buffer. void out_filter (filter_t cb)
If set, outgoing data is filtered through this callback before it is sent
to the file descriptor. void set_error (error_t cb)
Set a callback for all error types at once. void set_poll_error
(error_t cb)
Callback for errors from poll. void set_read_error
(error_t cb)
Callback for errors from read. void set_write_error
(error_t cb)
Callback for errors from write. void set_eof (error_t
cb)
Callback for end of file. void read_reset ()
Stop reading, delete the buffer. void write_reset ()
Stop writing, delete the buffer. void reset ()
Stop reading and writing, delete the buffers. int get_fd ()
const
Get the fd. This function should mostly be used by derived classes.
Glib::RefPtr< Glib::MainContext > get_main_context ()
Get the main context. Also mostly used by derived classes.
Static Public Member Functions¶
static Glib::RefPtr< fd > create (int
value=-1, Glib::RefPtr< Glib::MainContext >
main=Glib::MainContext::get_default())
Create a new fd.
Protected Member Functions¶
fd (int value, Glib::RefPtr< Glib::MainContext >
main)
Constructor. ~fd ()
Destructor.
Detailed Description¶
The fd class is a generic wrapper for a file descriptor to use it in the Glib event loop.
Member Function Documentation¶
void shevek::fd::read (read_tcb)¶
Poll for read and set read callback (resets custom callback) If no callback is set for priority read, this callback is used for that as well.
std::string& shevek::fd::read_block (relative_timetimeout = relative_time(-1, 0))¶
Block until data is read, try writing if there is a write buffer. Return read data as reference to buffer. (callback is not called) Returns immediately if buffer is not empty. Priority read buffer and normal read buffer are both checked. This will block at most until the timeout is reached, if it is positive.
void shevek::fd::read_custom (read_custom_tcb)¶
Poll for read with a custom callback to poll. If no callback is set for priority read, this callback is used for that as well.
void shevek::fd::set_error (error_tcb)¶
Set a callback for all error types at once. This is used for any error for which no other callback is set.
bool shevek::fd::write_block (relative_timetimeout = relative_time(-1, 0))¶
Block until write buffer is empty. This will block at most until the timeout is reached, if it is positive.
Author¶
Generated automatically by Doxygen for libshevek from the source code.
| Wed Jul 9 2014 | libshevek |