EventLoop source for IO callbacks. More...
#include "loop.hh"
Inheritance diagram for Ase::PollFDSource:
Static Public Member Functions | |
| static PollFDSourceP | create (const BPfdSlot &slot, int fd, const String &mode) |
| static PollFDSourceP | create (const VPfdSlot &slot, int fd, const String &mode) |
Protected Member Functions | |
| void | construct (const String &mode) |
| virtual bool | prepare (const LoopState &state, int64 *timeout_usecs_p) |
| Prepare the source for dispatching (true return) or polling (false). | |
| virtual bool | check (const LoopState &state) |
| Check the source and its PollFD descriptors for dispatching (true return). | |
| virtual bool | dispatch (const LoopState &state) |
| Dispatch source, returns if it should be kept alive. | |
| virtual void | destroy () |
 Protected Member Functions inherited from Ase::EventSource | |
| uint | n_pfds () |
| uint | source_id () |
Protected Attributes | ||
| PollFD | pfd_ | |
| uint | never_close_: 1 | |
| Protected Attributes inherited from Ase::EventSource | ||
| EventLoop * | loop_ | |
| struct { | ||
| PollFD * | pfd | |
| uint | idx | |
| } * | pfds_ | |
| uint | id_ | |
| int16 | priority_ | |
| uint8 | loop_state_ | |
| uint | may_recurse_: 1 | |
| uint | dispatching_: 1 | |
| uint | was_dispatching_: 1 | |
| uint | primary_: 1 | |
Additional Inherited Members | |
| Public Member Functions inherited from Ase::EventSource | |
| bool | recursion () const |
| Indicates wether the source is currently in recursion. | |
| bool | may_recurse () const |
| Indicates if this source may recurse. | |
| void | may_recurse (bool may_recurse) |
| Dispatch this source if its running recursively. | |
| bool | primary () const |
| Indicate whether this source is primary. | |
| void | primary (bool is_primary) |
| Set whether this source prevents its loop from exiting. | |
| void | add_poll (PollFD *const pfd) |
| Add a PollFD descriptors for poll(2) and check(). | |
| void | remove_poll (PollFD *const pfd) |
| Remove a previously added PollFD. | |
| void | loop_remove () |
| Remove this source from its event loop if any. | |
| MainLoop * | main_loop () const |
| Get the main loop for this source. | |
Detailed Description
EventLoop source for IO callbacks.
A PollFDSource can be used to execute a callback function from the main loop, depending on certain file descriptor states.
The modes supported for polling the file descriptor are as follows:
"r"- poll readable (POLLIN)"w"- poll writable (POLLOUT)"p"- priority data (POLLPRI)"d"- priority band writable (POLLWRBAND)"b"- set fd blocking"B"- set fd non-blocking"C"- prevent auto close on destroy
Constructor & Destructor Documentation
◆ ~PollFDSource()
Member Function Documentation
◆ check()
Check the source and its PollFD descriptors for dispatching (true return).
Implements Ase::EventSource.
◆ construct()
|
protected |
◆ create() [1/2]
|
static |
◆ create() [2/2]
|
static |
◆ destroy()
|
protectedvirtual |
Reimplemented from Ase::EventSource.
◆ dispatch()
Dispatch source, returns if it should be kept alive.
Implements Ase::EventSource.
Definition at line 1337 of file loop.cc.
References close().
◆ prepare()
|
protectedvirtual |
Prepare the source for dispatching (true return) or polling (false).
Implements Ase::EventSource.
Member Data Documentation
◆ never_close_
◆ pfd_
The documentation for this class was generated from the following files: