minor kqueue optimisation

[software/libev.git] / ev.h

diff --git a/ev.h b/ev.h
index 4c915a010bbba5e3e7af4a03d5fdd6e4f48a8b85..8fa7af357fcfbc42e0e37c0564bec344e3625a1c 100644 (file)
--- a/ev.h
+++ b/ev.h
@@ -71,22 +71,22 @@ struct ev_loop;
 #endif
 
 /* eventmask, revents, events... */
 #endif
 
 /* eventmask, revents, events... */

-#define EV_UNDEF          -1 /* guaranteed to be invalid */
-#define EV_NONE         0x00
-#define EV_READ         0x01 /* io only */
-#define EV_WRITE        0x02 /* io only */
-#define EV_TIMEOUT  0x000100 /* timer only */
-#define EV_PERIODIC 0x000200 /* periodic timer only */
-#define EV_SIGNAL   0x000400 /* signal only */
-#define EV_IDLE     0x000800 /* idle only */
-#define EV_CHECK    0x001000 /* check only */
-#define EV_PREPARE  0x002000 /* prepare only */
-#define EV_CHILD    0x004000 /* child/pid only */
-#define EV_ERROR    0x800000 /* sent when an error occurs */
+#define EV_UNDEF          -1L /* guaranteed to be invalid */
+#define EV_NONE         0x00L 
+#define EV_READ         0x01L /* io only */
+#define EV_WRITE        0x02L /* io only */
+#define EV_TIMEOUT  0x000100L /* timer only */
+#define EV_PERIODIC 0x000200L /* periodic timer only */
+#define EV_SIGNAL   0x000400L /* signal only */
+#define EV_IDLE     0x000800L /* idle only */
+#define EV_CHECK    0x001000L /* check only */
+#define EV_PREPARE  0x002000L /* prepare only */
+#define EV_CHILD    0x004000L /* child/pid only */
+#define EV_ERROR    0x800000L /* sent when an error occurs */

 
 /* can be used to add custom fields to all watchers, while losing binary compatibility */
 #ifndef EV_COMMON
 
 /* can be used to add custom fields to all watchers, while losing binary compatibility */
 #ifndef EV_COMMON

-# define EV_COMMON void *data
+# define EV_COMMON void *data;

 #endif
 #ifndef EV_PROTOTYPES
 # define EV_PROTOTYPES 1
 #endif
 #ifndef EV_PROTOTYPES
 # define EV_PROTOTYPES 1


@@ -114,40 +114,40 @@ struct ev_loop;
   int active; /* private */                    \
   int pending; /* private */                   \
   int priority; /* private */                  \
   int active; /* private */                    \
   int pending; /* private */                   \
   int priority; /* private */                  \

-  EV_COMMON; /* rw */                          \
+  EV_COMMON /* rw */                           \

   EV_CB_DECLARE (type) /* private */
 
 #define EV_WATCHER_LIST(type)                  \
   EV_CB_DECLARE (type) /* private */
 
 #define EV_WATCHER_LIST(type)                  \

-  EV_WATCHER (type);                           \
-  struct ev_watcher_list *next /* private */
+  EV_WATCHER (type)                            \
+  struct ev_watcher_list *next; /* private */

 
 #define EV_WATCHER_TIME(type)                  \
 
 #define EV_WATCHER_TIME(type)                  \

-  EV_WATCHER (type);                           \
-  ev_tstamp at     /* private */
+  EV_WATCHER (type)                            \
+  ev_tstamp at;     /* private */

 
 /* base class, nothing to see here unless you subclass */
 struct ev_watcher
 {
 
 /* base class, nothing to see here unless you subclass */
 struct ev_watcher
 {

-  EV_WATCHER (ev_watcher);
+  EV_WATCHER (ev_watcher)

 };
 
 /* base class, nothing to see here unless you subclass */
 struct ev_watcher_list
 {
 };
 
 /* base class, nothing to see here unless you subclass */
 struct ev_watcher_list
 {

-  EV_WATCHER_LIST (ev_watcher_list);
+  EV_WATCHER_LIST (ev_watcher_list)

 };
 
 /* base class, nothing to see here unless you subclass */
 struct ev_watcher_time
 {
 };
 
 /* base class, nothing to see here unless you subclass */
 struct ev_watcher_time
 {

-  EV_WATCHER_TIME (ev_watcher_time);
+  EV_WATCHER_TIME (ev_watcher_time)

 };
 
 /* invoked after a specific time, repeatable (based on monotonic clock) */
 /* revent EV_TIMEOUT */
 struct ev_timer
 {
 };
 
 /* invoked after a specific time, repeatable (based on monotonic clock) */
 /* revent EV_TIMEOUT */
 struct ev_timer
 {

-  EV_WATCHER_TIME (ev_timer);
+  EV_WATCHER_TIME (ev_timer)

 
   ev_tstamp repeat; /* rw */
 };
 
   ev_tstamp repeat; /* rw */
 };


@@ -156,7 +156,7 @@ struct ev_timer
 /* revent EV_PERIODIC */
 struct ev_periodic
 {
 /* revent EV_PERIODIC */
 struct ev_periodic
 {

-  EV_WATCHER_TIME (ev_periodic);
+  EV_WATCHER_TIME (ev_periodic)

 
   ev_tstamp interval; /* rw */
   ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */
 
   ev_tstamp interval; /* rw */
   ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */


@@ -166,7 +166,7 @@ struct ev_periodic
 /* revent EV_READ, EV_WRITE */
 struct ev_io
 {
 /* revent EV_READ, EV_WRITE */
 struct ev_io
 {

-  EV_WATCHER_LIST (ev_io);
+  EV_WATCHER_LIST (ev_io)

 
   int fd;     /* ro */
   int events; /* ro */
 
   int fd;     /* ro */
   int events; /* ro */


@@ -176,7 +176,7 @@ struct ev_io
 /* revent EV_SIGNAL */
 struct ev_signal
 {
 /* revent EV_SIGNAL */
 struct ev_signal
 {

-  EV_WATCHER_LIST (ev_signal);
+  EV_WATCHER_LIST (ev_signal)

 
   int signum; /* ro */
 };
 
   int signum; /* ro */
 };


@@ -185,7 +185,7 @@ struct ev_signal
 /* revent EV_IDLE */
 struct ev_idle
 {
 /* revent EV_IDLE */
 struct ev_idle
 {

-  EV_WATCHER (ev_idle);
+  EV_WATCHER (ev_idle)

 };
 
 /* invoked for each run of the mainloop, just before the blocking call */
 };
 
 /* invoked for each run of the mainloop, just before the blocking call */


@@ -193,22 +193,22 @@ struct ev_idle
 /* revent EV_PREPARE */
 struct ev_prepare
 {
 /* revent EV_PREPARE */
 struct ev_prepare
 {

-  EV_WATCHER (ev_prepare);
+  EV_WATCHER (ev_prepare)

 };
 
 /* invoked for each run of the mainloop, just after the blocking call */
 /* revent EV_CHECK */
 struct ev_check
 {
 };
 
 /* invoked for each run of the mainloop, just after the blocking call */
 /* revent EV_CHECK */
 struct ev_check
 {

-  EV_WATCHER (ev_check);
+  EV_WATCHER (ev_check)

 };
 
 };
 

-/* invoked when sigchld is received and waitpid indicates the givne pid */
+/* invoked when sigchld is received and waitpid indicates the given pid */

 /* revent EV_CHILD */
 /* does not support priorities */
 struct ev_child
 {
 /* revent EV_CHILD */
 /* does not support priorities */
 struct ev_child
 {

-  EV_WATCHER_LIST (ev_child);
+  EV_WATCHER_LIST (ev_child)

 
   int pid;     /* ro */
   int rpid;    /* rw, holds the received pid */
 
   int pid;     /* ro */
   int rpid;    /* rw, holds the received pid */


@@ -231,20 +231,26 @@ union ev_any_watcher
   struct ev_child child;
 };
 
   struct ev_child child;
 };
 

-#define EVMETHOD_AUTO     0 /* consults environment */
-#define EVMETHOD_SELECT   1
-#define EVMETHOD_POLL     2
-#define EVMETHOD_EPOLL    4
-#define EVMETHOD_KQUEUE   8
-#define EVMETHOD_DEVPOLL 16 /* NYI */
-#define EVMETHOD_PORT    32 /* NYI */
-#define EVMETHOD_WIN32   64 /* NYI */
-#define EVMETHOD_ANY     ~0 /* any method, do not consult env */
+/* bits for ev_default_loop and ev_loop_new */
+/* the default */
+#define EVFLAG_AUTO       0x00000000UL /* not quite a mask */
+/* flag bits */
+#define EVFLAG_NOENV      0x01000000UL /* do NOT consult environment */
+/* method bits to be ored together */
+#define EVBACKEND_SELECT  0x00000001UL /* about anywhere */
+#define EVBACKEND_POLL    0x00000002UL /* !win */
+#define EVBACKEND_EPOLL   0x00000004UL /* linux */
+#define EVBACKEND_KQUEUE  0x00000008UL /* bsd */
+#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */
+#define EVBACKEND_PORT    0x00000020UL /* solaris 10 */

 
 #if EV_PROTOTYPES
 int ev_version_major (void);
 int ev_version_minor (void);
 
 
 #if EV_PROTOTYPES
 int ev_version_major (void);
 int ev_version_minor (void);
 

+unsigned int ev_supported_backends (void);
+unsigned int ev_recommended_backends (void);
+

 ev_tstamp ev_time (void);
 
 /* Sets the allocation function to use, works like realloc.
 ev_tstamp ev_time (void);
 
 /* Sets the allocation function to use, works like realloc.


@@ -264,10 +270,20 @@ void ev_set_syserr_cb (void (*cb)(const char *msg));
 # if EV_MULTIPLICITY
 /* the default loop is the only one that handles signals and child watchers */
 /* you can call this as often as you like */
 # if EV_MULTIPLICITY
 /* the default loop is the only one that handles signals and child watchers */
 /* you can call this as often as you like */

-struct ev_loop *ev_default_loop (int methods); /* returns default loop */
+static struct ev_loop *
+ev_default_loop (unsigned int flags)
+{
+  extern struct ev_loop *ev_default_loop_ptr;
+  extern struct ev_loop *ev_default_loop_init (unsigned int flags);
+
+  if (!ev_default_loop_ptr)
+    ev_default_loop_init (flags);
+
+  return ev_default_loop_ptr;
+}

 
 /* create and destroy alternative loops that don't handle signals */
 
 /* create and destroy alternative loops that don't handle signals */

-struct ev_loop *ev_loop_new (int methods);
+struct ev_loop *ev_loop_new (unsigned int flags);

 void ev_loop_destroy (EV_P);
 void ev_loop_fork (EV_P);
 
 void ev_loop_destroy (EV_P);
 void ev_loop_fork (EV_P);
 


@@ -275,10 +291,10 @@ ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after
 
 # else
 
 
 # else
 

-int ev_default_loop (int methods); /* returns true when successful */
+int ev_default_loop (unsigned int flags); /* returns true when successful */

 
 static ev_tstamp
 
 static ev_tstamp

-ev_now ()
+ev_now (void)

 {
   extern ev_tstamp ev_rt_now;
 
 {
   extern ev_tstamp ev_rt_now;
 


@@ -293,12 +309,12 @@ void ev_default_destroy (void); /* destroy the default loop */
 /* you can actually call it at any time, anywhere :) */
 void ev_default_fork (void);
 
 /* you can actually call it at any time, anywhere :) */
 void ev_default_fork (void);
 

-int ev_method (EV_P);
+unsigned int ev_backend (EV_P);

 #endif
 
 #define EVLOOP_NONBLOCK        1 /* do not block/wait */
 #define EVLOOP_ONESHOT 2 /* block *once* only */
 #endif
 
 #define EVLOOP_NONBLOCK        1 /* do not block/wait */
 #define EVLOOP_ONESHOT 2 /* block *once* only */

-#define EVUNLOOP_ONCE   1 /* unloop once */
+#define EVUNLOOP_ONE    1 /* unloop once */

 #define EVUNLOOP_ALL    2 /* unloop all loops */
 
 #if EV_PROTOTYPES
 #define EVUNLOOP_ALL    2 /* unloop all loops */
 
 #if EV_PROTOTYPES