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Public Types | |
typedef Glib::MainContext | CppObjectType |
typedef GMainContext | BaseObjectType |
Public Member Functions | |
bool | iteration (bool may_block) |
Runs a single iteration for the given main loop. | |
bool | pending () |
Checks if any sources have pending events for the given context. | |
void | wakeup () |
If context is currently waiting in a poll(), interrupt the poll(), and continue the iteration process. | |
bool | acquire () |
Tries to become the owner of the specified context. | |
bool | wait (Glib::Cond& cond, Glib::Mutex& mutex) |
Tries to become the owner of the specified context, as with acquire(). | |
void | release () |
Releases ownership of a context previously acquired by this thread with acquire(). | |
bool | prepare (int& priority) |
Prepares to poll sources within a main loop. | |
bool | prepare () |
Prepares to poll sources within a main loop. | |
void | query (int max_priority, int& timeout, std::vector<PollFD>& fds) |
Determines information necessary to poll this main loop. | |
bool | check (int max_priority, std::vector<PollFD>& fds) |
Passes the results of polling back to the main loop. | |
void | dispatch () |
Dispatches all pending sources. | |
void | set_poll_func (GPollFunc poll_func) |
Sets the function to use to handle polling of file descriptors. | |
GPollFunc | get_poll_func () |
Gets the poll function set by g_main_context_set_poll_func(). | |
void | add_poll (PollFD& fd, int priority) |
Adds a file descriptor to the set of file descriptors polled for this context. | |
void | remove_poll (PollFD& fd) |
Removes file descriptor from the set of file descriptors to be polled for a particular context. | |
SignalTimeout | signal_timeout () |
Timeout signal, attached to this MainContext. | |
SignalIdle | signal_idle () |
Idle signal, attached to this MainContext. | |
SignalIO | signal_io () |
I/O signal, attached to this MainContext. | |
void | reference () const |
void | unreference () const |
GMainContext* | gobj () |
const GMainContext* | gobj () const |
GMainContext* | gobj_copy () const |
Static Public Member Functions | |
Glib::RefPtr<MainContext> | create () |
Creates a new MainContext. | |
Glib::RefPtr<MainContext> | get_default () |
Returns the default main context. | |
Related Functions | |
(Note that these are not member functions.) | |
Glib::RefPtr<MainContext> | wrap (GMainContext* gobject, bool take_copy=false) |
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Tries to become the owner of the specified context. If some other context is the owner of the context, returns FALSE immediately. Ownership is properly recursive: the owner can require ownership again and will release ownership when release() is called as many times as acquire(). You must be the owner of a context before you can call prepare(), query(), check(), dispatch().
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Adds a file descriptor to the set of file descriptors polled for this context. This will very seldomly be used directly. Instead a typical event source will use Glib::Source::add_poll() instead.
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Passes the results of polling back to the main loop.
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Creates a new MainContext.
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Dispatches all pending sources.
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Returns the default main context. This is the main context used for main loop functions when a main loop is not explicitly specified.
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Gets the poll function set by g_main_context_set_poll_func().
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Runs a single iteration for the given main loop. This involves checking to see if any event sources are ready to be processed, then if no events sources are ready and may_block is true, waiting for a source to become ready, then dispatching the highest priority events sources that are ready. Note that even when may_block is true, it is still possible for iteration() to return FALSE, since the the wait may be interrupted for other reasons than an event source becoming ready.
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Checks if any sources have pending events for the given context.
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Prepares to poll sources within a main loop. The resulting information for polling is determined by calling query().
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Prepares to poll sources within a main loop. The resulting information for polling is determined by calling query().
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Determines information necessary to poll this main loop.
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Releases ownership of a context previously acquired by this thread with acquire(). If the context was acquired multiple times, the only release ownership when release() is called as many times as it was acquired. |
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Removes file descriptor from the set of file descriptors to be polled for a particular context.
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Sets the function to use to handle polling of file descriptors. It will be used instead of the poll() system call (or GLib's replacement function, which is used where poll() isn't available). This function could possibly be used to integrate the GLib event loop with an external event loop.
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Idle signal, attached to this MainContext.
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I/O signal, attached to this MainContext.
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Timeout signal, attached to this MainContext.
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Tries to become the owner of the specified context, as with acquire(). But if another thread is the owner, atomically drop mutex and wait on cond until that owner releases ownership or until cond is signaled, then try again (once) to become the owner.
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If context is currently waiting in a poll(), interrupt the poll(), and continue the iteration process.
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