diff options
Diffstat (limited to 'ev.h')
| -rw-r--r-- | ev.h | 24 |
1 files changed, 24 insertions, 0 deletions
@@ -82,6 +82,7 @@ struct ev_loop; #define EV_CHECK 0x001000L /* check only */ #define EV_PREPARE 0x002000L /* prepare only */ #define EV_CHILD 0x004000L /* child/pid only */ +#define EV_EMBED 0x008000L /* embedded event loop */ #define EV_ERROR 0x800000L /* sent when an error occurs */ /* can be used to add custom fields to all watchers, while losing binary compatibility */ @@ -215,6 +216,18 @@ struct ev_child int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ }; +#if EV_MULTIPLICITY +/* used to embed an event loop inside another */ +/* the callback gets invoked when the event loop has handled events, and can be 0 */ +struct ev_embed +{ + EV_WATCHER (ev_embed) + + struct ev_io io; /* private */ + struct ev_loop *loop; /* ro */ +}; +#endif + /* the presence of this union forces similar struct layout */ union ev_any_watcher { @@ -229,6 +242,7 @@ union ev_any_watcher struct ev_check check; struct ev_signal signal; struct ev_child child; + struct ev_embed embed; }; /* bits for ev_default_loop and ev_loop_new */ @@ -250,6 +264,7 @@ int ev_version_minor (void); unsigned int ev_supported_backends (void); unsigned int ev_recommended_backends (void); +unsigned int ev_embeddable_backends (void); ev_tstamp ev_time (void); @@ -351,6 +366,7 @@ void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revent #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) +#define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0) #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) @@ -360,6 +376,7 @@ void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revent #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) #define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) +#define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0) #define ev_is_pending(ev) (0 + ((struct ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ #define ev_is_active(ev) (0 + ((struct ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ @@ -412,6 +429,13 @@ void ev_signal_stop (EV_P_ struct ev_signal *w); /* only supported in the default loop */ void ev_child_start (EV_P_ struct ev_child *w); void ev_child_stop (EV_P_ struct ev_child *w); + +# if EV_MULTIPLICITY +/* only supported when loop to be embedded is in fact embeddable */ +void ev_embed_start (EV_P_ struct ev_embed *w); +void ev_embed_stop (EV_P_ struct ev_embed *w); +# endif + #endif #ifdef __cplusplus |