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master
Marc Alexander Lehmann 12 years ago
parent
commit
7262e461ef
  1. 5
      Changes
  2. 1
      Symbols.ev
  3. 12
      ev.c
  4. 8
      ev.h
  5. 12
      ev.pod
  6. 4
      ev_vars.h
  7. 4
      ev_wrap.h

5
Changes

@ -3,7 +3,8 @@ Revision history for libev, a high-performance and full-featured event loop.
TODO: ev_walk
TODO: child wactehr execution order w.r.t. childsigcb reg. priorities
TODO: remain
TODO: io_collect documentation
- ev_unloop and ev_loop wrongly used a global variable to exit loops,
instead of using a per-loop variable (bug caught by accident...).
- Denis F. Latypoff corrected many typos in example code snippets.
- the ev_set_io_collect_interval interpretation has changed.
- honor autoconf detection of EV_USE_CLOCK_SYSCALL, also double-
@ -11,6 +12,8 @@ TODO: io_collect documentation
use it (reported by ry@tinyclouds).
- use GetSystemTimeAsFileTime instead of _timeb on windows, for
slightly higher accuracy.
- properly declare ev_loop_verify even when !EV_MULTIPLICITY.
- implement ev_loop_depth.
3.6 Tue Apr 28 02:49:30 CEST 2009
- multiple timers becoming ready within an event loop iteration

1
Symbols.ev

@ -27,6 +27,7 @@ ev_io_start
ev_io_stop
ev_loop
ev_loop_count
ev_loop_depth
ev_loop_destroy
ev_loop_fork
ev_loop_new

12
ev.c

@ -1360,6 +1360,12 @@ ev_loop_count (EV_P)
return loop_count;
}
unsigned int
ev_loop_depth (EV_P)
{
return loop_depth;
}
void
ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
{
@ -2022,11 +2028,11 @@ time_update (EV_P_ ev_tstamp max_block)
}
}
static int loop_done;
void
ev_loop (EV_P_ int flags)
{
++loop_depth;
loop_done = EVUNLOOP_CANCEL;
call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
@ -2151,6 +2157,8 @@ ev_loop (EV_P_ int flags)
if (loop_done == EVUNLOOP_ONE)
loop_done = EVUNLOOP_CANCEL;
--loop_depth;
}
void

8
ev.h

@ -461,7 +461,6 @@ ev_default_loop (unsigned int flags)
struct ev_loop *ev_loop_new (unsigned int flags);
void ev_loop_destroy (EV_P);
void ev_loop_fork (EV_P);
void ev_loop_verify (EV_P);
ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
void ev_now_update (EV_P);
@ -498,6 +497,11 @@ void ev_default_destroy (void); /* destroy the default loop */
/* you can actually call it at any time, anywhere :) */
void ev_default_fork (void);
unsigned int ev_backend (EV_P); /* backend in use by loop */
unsigned int ev_loop_count (EV_P); /* number of loop iterations */
unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
void ev_loop_verify (EV_P); /* abort if loop data corrupted */
#if EV_WALK_ENABLE
/* walk (almost) all watchers in the loop of a given type, invoking the */
/* callback on every such watcher. The callback might stop the watcher, */
@ -505,8 +509,6 @@ void ev_default_fork (void);
void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w));
#endif
unsigned int ev_backend (EV_P); /* backend in use by loop */
unsigned int ev_loop_count (EV_P); /* number of loop iterations */
#endif /* prototypes */
#define EVLOOP_NONBLOCK 1 /* do not block/wait */

12
ev.pod

@ -623,6 +623,18 @@ This value can sometimes be useful as a generation counter of sorts (it
"ticks" the number of loop iterations), as it roughly corresponds with
C<ev_prepare> and C<ev_check> calls.
=item unsigned int ev_loop_depth (loop)
Returns the number of times C<ev_loop> was entered minus the number of
times C<ev_loop> was exited, in other words, the recursion depth.
Outside C<ev_loop>, this number is zero. In a callback, this number is
C<1>, unless C<ev_loop> was invoked recursively (or from another thread),
in which case it is higher.
Leaving C<ev_loop> abnormally (setjmp/longjmp, cancelling the thread
etc.), doesn't count as exit.
=item unsigned int ev_backend (loop)
Returns one of the C<EVBACKEND_*> flags indicating the event backend in

4
ev_vars.h

@ -1,7 +1,7 @@
/*
* loop member variable declarations
*
* Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>
* Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modifica-
@ -49,6 +49,8 @@ VARx(ev_tstamp, timeout_blocktime)
VARx(int, backend)
VARx(int, activecnt) /* total number of active events ("refcount") */
VARx(unsigned int, loop_count) /* total number of loop iterations/blocks */
VARx(unsigned int, loop_depth) /* #ev_loop enters - #ev_loop leaves */
VARx(char, loop_done) /* signal by ev_unloop */
VARx(int, backend_fd)
VARx(ev_tstamp, backend_fudge) /* assumed typical timer resolution */

4
ev_wrap.h

@ -9,6 +9,8 @@
#define backend ((loop)->backend)
#define activecnt ((loop)->activecnt)
#define loop_count ((loop)->loop_count)
#define loop_depth ((loop)->loop_depth)
#define loop_done ((loop)->loop_done)
#define backend_fd ((loop)->backend_fd)
#define backend_fudge ((loop)->backend_fudge)
#define backend_modify ((loop)->backend_modify)
@ -87,6 +89,8 @@
#undef backend
#undef activecnt
#undef loop_count
#undef loop_depth
#undef loop_done
#undef backend_fd
#undef backend_fudge
#undef backend_modify

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