From 42a515683c8434c476de42b87c0f327e459810dc Mon Sep 17 00:00:00 2001 From: root Date: Tue, 16 Mar 2010 00:20:16 +0000 Subject: rough EV_FEATURES implementation --- Changes | 3 +- ev.c | 80 ++++++++++++++--------------- ev.h | 62 +++++++++++++++-------- ev.pod | 174 ++++++++++++++++++++++++++++++++++++---------------------------- 4 files changed, 176 insertions(+), 143 deletions(-) diff --git a/Changes b/Changes index 027d0d1..f0f44a3 100644 --- a/Changes +++ b/Changes @@ -1,9 +1,10 @@ Revision history for libev, a high-performance and full-featured event loop. -TODO: accept() documentation +TODO: ABI??? API????? Changes??? - ev_embed_stop did not correctly stop the watcher (very good testcase by Vladimir Timofeev). - applied win32 fixes by Michael Lenaghan (also James Mansion). + - replace EV_MINIMAL by EV_FEATURES. - remove dependency on sys/queue.h on freebsd (patch by Vanilla Hsu). - configure now prepends -O3, not appends it, so one can still override it. diff --git a/ev.c b/ev.c index 85d0c47..fe94048 100644 --- a/ev.c +++ b/ev.c @@ -221,7 +221,7 @@ extern "C" { #ifndef EV_USE_CLOCK_SYSCALL # if __linux && __GLIBC__ >= 2 -# define EV_USE_CLOCK_SYSCALL 1 +# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS # else # define EV_USE_CLOCK_SYSCALL 0 # endif @@ -229,7 +229,7 @@ extern "C" { #ifndef EV_USE_MONOTONIC # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 -# define EV_USE_MONOTONIC 1 +# define EV_USE_MONOTONIC EV_FEATURE_OS # else # define EV_USE_MONOTONIC 0 # endif @@ -241,27 +241,27 @@ extern "C" { #ifndef EV_USE_NANOSLEEP # if _POSIX_C_SOURCE >= 199309L -# define EV_USE_NANOSLEEP 1 +# define EV_USE_NANOSLEEP EV_FEATURE_OS # else # define EV_USE_NANOSLEEP 0 # endif #endif #ifndef EV_USE_SELECT -# define EV_USE_SELECT 1 +# define EV_USE_SELECT EV_FEATURE_BACKENDS #endif #ifndef EV_USE_POLL # ifdef _WIN32 # define EV_USE_POLL 0 # else -# define EV_USE_POLL 1 +# define EV_USE_POLL EV_FEATURE_BACKENDS # endif #endif #ifndef EV_USE_EPOLL # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) -# define EV_USE_EPOLL 1 +# define EV_USE_EPOLL EV_FEATURE_BACKENDS # else # define EV_USE_EPOLL 0 # endif @@ -277,31 +277,23 @@ extern "C" { #ifndef EV_USE_INOTIFY # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) -# define EV_USE_INOTIFY 1 +# define EV_USE_INOTIFY EV_FEATURE_OS # else # define EV_USE_INOTIFY 0 # endif #endif #ifndef EV_PID_HASHSIZE -# if EV_MINIMAL -# define EV_PID_HASHSIZE 1 -# else -# define EV_PID_HASHSIZE 16 -# endif +# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 #endif #ifndef EV_INOTIFY_HASHSIZE -# if EV_MINIMAL -# define EV_INOTIFY_HASHSIZE 1 -# else -# define EV_INOTIFY_HASHSIZE 16 -# endif +# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 #endif #ifndef EV_USE_EVENTFD # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) -# define EV_USE_EVENTFD 1 +# define EV_USE_EVENTFD EV_FEATURE_OS # else # define EV_USE_EVENTFD 0 # endif @@ -309,7 +301,7 @@ extern "C" { #ifndef EV_USE_SIGNALFD # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) -# define EV_USE_SIGNALFD 1 +# define EV_USE_SIGNALFD EV_FEATURE_OS # else # define EV_USE_SIGNALFD 0 # endif @@ -322,15 +314,15 @@ extern "C" { #endif #ifndef EV_VERIFY -# define EV_VERIFY !EV_MINIMAL +# define EV_VERIFY (EV_FEATURE_API ? 1 : 0) #endif #ifndef EV_USE_4HEAP -# define EV_USE_4HEAP !EV_MINIMAL +# define EV_USE_4HEAP EV_FEATURE_DATA #endif #ifndef EV_HEAP_CACHE_AT -# define EV_HEAP_CACHE_AT !EV_MINIMAL +# define EV_HEAP_CACHE_AT EV_FEATURE_DATA #endif /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ @@ -478,10 +470,10 @@ struct signalfd_siginfo #define expect_true(expr) expect ((expr) != 0, 1) #define inline_size static inline -#if EV_MINIMAL -# define inline_speed static noinline -#else +#if EV_FEATURE_CODE # define inline_speed static inline +#else +# define inline_speed static noinline #endif #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) @@ -698,7 +690,7 @@ typedef struct #endif -#if EV_MINIMAL < 2 +#if EV_FEATURE_API # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) # define EV_INVOKE_PENDING invoke_cb (EV_A) @@ -1405,7 +1397,7 @@ child_reap (EV_P_ int chain, int pid, int status) ev_child *w; int traced = WIFSTOPPED (status) || WIFCONTINUED (status); - for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) + for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) { if ((w->pid == pid || !w->pid) && (!traced || (w->flags & 1))) @@ -1440,7 +1432,7 @@ childcb (EV_P_ ev_signal *sw, int revents) ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); child_reap (EV_A_ pid, pid, status); - if (EV_PID_HASHSIZE > 1) + if ((EV_PID_HASHSIZE) > 1) child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ } @@ -1539,7 +1531,7 @@ ev_backend (EV_P) return backend; } -#if EV_MINIMAL < 2 +#if EV_FEATURE_API unsigned int ev_loop_count (EV_P) { @@ -1629,7 +1621,7 @@ loop_init (EV_P_ unsigned int flags) mn_now = get_clock (); now_floor = mn_now; rtmn_diff = ev_rt_now - mn_now; -#if EV_MINIMAL < 2 +#if EV_FEATURE_API invoke_cb = ev_invoke_pending; #endif @@ -1876,7 +1868,7 @@ array_verify (EV_P_ W *ws, int cnt) } #endif -#if EV_MINIMAL < 2 +#if EV_FEATURE_API void ev_loop_verify (EV_P) { @@ -1939,7 +1931,7 @@ ev_loop_verify (EV_P) # if 0 #if EV_CHILD_ENABLE - for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) + for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) #endif # endif @@ -2277,7 +2269,7 @@ time_update (EV_P_ ev_tstamp max_block) void ev_loop (EV_P_ int flags) { -#if EV_MINIMAL < 2 +#if EV_FEATURE_API ++loop_depth; #endif @@ -2380,7 +2372,7 @@ ev_loop (EV_P_ int flags) } } -#if EV_MINIMAL < 2 +#if EV_FEATURE_API ++loop_count; #endif assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ @@ -2419,7 +2411,7 @@ ev_loop (EV_P_ int flags) if (loop_done == EVUNLOOP_ONE) loop_done = EVUNLOOP_CANCEL; -#if EV_MINIMAL < 2 +#if EV_FEATURE_API --loop_depth; #endif } @@ -2879,7 +2871,7 @@ ev_child_start (EV_P_ ev_child *w) EV_FREQUENT_CHECK; ev_start (EV_A_ (W)w, 1); - wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); + wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); EV_FREQUENT_CHECK; } @@ -2893,7 +2885,7 @@ ev_child_stop (EV_P_ ev_child *w) EV_FREQUENT_CHECK; - wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); + wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); ev_stop (EV_A_ (W)w); EV_FREQUENT_CHECK; @@ -2976,7 +2968,7 @@ infy_add (EV_P_ ev_stat *w) } if (w->wd >= 0) - wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); + wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); /* now re-arm timer, if required */ if (ev_is_active (&w->timer)) ev_ref (EV_A); @@ -2994,7 +2986,7 @@ infy_del (EV_P_ ev_stat *w) return; w->wd = -2; - slot = wd & (EV_INOTIFY_HASHSIZE - 1); + slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); wlist_del (&fs_hash [slot].head, (WL)w); /* remove this watcher, if others are watching it, they will rearm */ @@ -3006,13 +2998,13 @@ infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) { if (slot < 0) /* overflow, need to check for all hash slots */ - for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) + for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) infy_wd (EV_A_ slot, wd, ev); else { WL w_; - for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) + for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) { ev_stat *w = (ev_stat *)w_; w_ = w_->next; /* lets us remove this watcher and all before it */ @@ -3021,7 +3013,7 @@ infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) { if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) { - wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); + wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); w->wd = -1; infy_add (EV_A_ w); /* re-add, no matter what */ } @@ -3145,7 +3137,7 @@ infy_fork (EV_P) ev_unref (EV_A); } - for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) + for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) { WL w_ = fs_hash [slot].head; fs_hash [slot].head = 0; @@ -3771,7 +3763,7 @@ ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) #if EV_CHILD_ENABLE if (types & EV_CHILD) - for (i = EV_PID_HASHSIZE; i--; ) + for (i = (EV_PID_HASHSIZE); i--; ) for (wl = childs [i]; wl; ) { wn = wl->next; diff --git a/ev.h b/ev.h index c99d40c..ab30c82 100644 --- a/ev.h +++ b/ev.h @@ -1,7 +1,7 @@ /* * libev native API header * - * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann + * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann * All rights reserved. * * Redistribution and use in source and binary forms, with or without modifica- @@ -44,73 +44,79 @@ extern "C" { #endif -typedef double ev_tstamp; +/*****************************************************************************/ + +#ifndef EV_FEATURES +# define EV_FEATURES 0x3f +#endif + +#define EV_FEATURE_CODE ((EV_FEATURES) & 1) +#define EV_FEATURE_DATA ((EV_FEATURES) & 2) +#define EV_FEATURE_API ((EV_FEATURES) & 4) +#define EV_FEATURE_WATCHERS ((EV_FEATURES) & 8) +#define EV_FEATURE_BACKENDS ((EV_FEATURES) & 16) +#define EV_FEATURE_OS ((EV_FEATURES) & 32) /* these priorities are inclusive, higher priorities will be called earlier */ #ifndef EV_MINPRI -# define EV_MINPRI -2 +# define EV_MINPRI (EV_FEATURE_API ? -2 : 0) #endif #ifndef EV_MAXPRI -# define EV_MAXPRI +2 +# define EV_MAXPRI (EV_FEATURE_API ? +2 : 0) #endif #ifndef EV_MULTIPLICITY -# define EV_MULTIPLICITY 1 +# define EV_MULTIPLICITY EV_FEATURE_API #endif #ifndef EV_PERIODIC_ENABLE -# define EV_PERIODIC_ENABLE 1 +# define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS #endif #ifndef EV_STAT_ENABLE -# define EV_STAT_ENABLE 1 +# define EV_STAT_ENABLE EV_FEATURE_WATCHERS #endif #ifndef EV_PREPARE_ENABLE -# define EV_PREPARE_ENABLE 1 +# define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS #endif #ifndef EV_CHECK_ENABLE -# define EV_CHECK_ENABLE 1 +# define EV_CHECK_ENABLE EV_FEATURE_WATCHERS #endif #ifndef EV_IDLE_ENABLE -# define EV_IDLE_ENABLE 1 +# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS #endif #ifndef EV_FORK_ENABLE -# define EV_FORK_ENABLE 1 +# define EV_FORK_ENABLE EV_FEATURE_WATCHERS #endif #ifndef EV_SIGNAL_ENABLE -# define EV_SIGNAL_ENABLE 1 +# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS #endif #ifndef EV_CHILD_ENABLE # ifdef _WIN32 # define EV_CHILD_ENABLE 0 # else -# define EV_CHILD_ENABLE 1 +# define EV_CHILD_ENABLE EV_FEATURE_WATCHERS #endif #endif #ifndef EV_ASYNC_ENABLE -# define EV_ASYNC_ENABLE 1 +# define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS #endif #ifndef EV_EMBED_ENABLE -# define EV_EMBED_ENABLE 1 +# define EV_EMBED_ENABLE EV_FEATURE_WATCHERS #endif #ifndef EV_WALK_ENABLE # define EV_WALK_ENABLE 0 /* not yet */ #endif -#ifndef EV_ATOMIC_T -# include -# define EV_ATOMIC_T sig_atomic_t volatile -#endif - /*****************************************************************************/ #if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE @@ -118,6 +124,20 @@ typedef double ev_tstamp; # define EV_SIGNAL_ENABLE 1 #endif +/*****************************************************************************/ + +#if !EV_FEATURE_CODE && !defined (NDEBUG) +# define NDEBUG 1 +# include +#endif + +typedef double ev_tstamp; + +#ifndef EV_ATOMIC_T +# include +# define EV_ATOMIC_T sig_atomic_t volatile +#endif + #if EV_STAT_ENABLE # ifdef _WIN32 # include @@ -569,7 +589,7 @@ void ev_unref (EV_P); */ void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); -# if EV_MINIMAL < 2 +# if EV_FEATURE_API 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 */ diff --git a/ev.pod b/ev.pod index bc2c752..e5a1391 100644 --- a/ev.pod +++ b/ev.pod @@ -3886,64 +3886,90 @@ If undefined or defined to be C<1> (and the platform supports it), then the respective watcher type is supported. If defined to be C<0>, then it is not. Disabling watcher types mainly saves codesize. -=item EV_MINIMAL +=item EV_FEATURES If you need to shave off some kilobytes of code at the expense of some -speed (but with the full API), define this symbol to C<1>. Currently this -is used to override some inlining decisions, saves roughly 30% code size -on amd64. It also selects a much smaller 2-heap for timer management over -the default 4-heap. - -You can save even more by disabling watcher types you do not need -and setting C == C. Also, disabling C -(C<-DNDEBUG>) will usually reduce code size a lot. Disabling inotify, -eventfd and signalfd will further help, and disabling backends one doesn't -need (e.g. poll, epoll, kqueue, ports) will help further. - -Defining C to C<2> will additionally reduce the core API to -provide a bare-bones event library. See C for details on what parts -of the API are still available, and do not complain if this subset changes -over time. - -This example set of settings reduces the compiled size of libev from -23.9Kb to 7.7Kb on my GNU/Linux amd64 system (and leaves little -in - there is also an effect on the amount of memory used). With -an intelligent-enough linker (gcc+binutils do this when you use -C<-Wl,--gc-sections -ffunction-sections>) further unused functions might -be left out as well automatically - a binary starting a timer and an I/O -watcher then might come out at only 5Kb. - - // tuning and API changes - #define EV_MINIMAL 2 - #define EV_MULTIPLICITY 0 - #define EV_MINPRI 0 - #define EV_MAXPRI 0 - - // OS-specific backends - #define EV_USE_INOTIFY 0 - #define EV_USE_EVENTFD 0 - #define EV_USE_SIGNALFD 0 - #define EV_USE_REALTIME 0 - #define EV_USE_MONOTONIC 0 - #define EV_USE_CLOCK_SYSCALL 0 - - // disable all backends except select - #define EV_USE_POLL 0 - #define EV_USE_PORT 0 - #define EV_USE_KQUEUE 0 - #define EV_USE_EPOLL 0 - - // disable all watcher types that cna be disabled - #define EV_STAT_ENABLE 0 - #define EV_PERIODIC_ENABLE 0 - #define EV_IDLE_ENABLE 0 - #define EV_CHECK_ENABLE 0 - #define EV_PREPARE_ENABLE 0 - #define EV_FORK_ENABLE 0 - #define EV_SIGNAL_ENABLE 0 - #define EV_CHILD_ENABLE 0 - #define EV_ASYNC_ENABLE 0 - #define EV_EMBED_ENABLE 0 +speed (but with the full API), you can define this symbol to request +certain subsets of functionality. The default is to enable all features +that can be enabled on the platform. + +Note that using autoconf will usually override most of the features, so +using this symbol makes sense mostly when embedding libev. + +A typical way to use this symbol is to define it to C<0> (or to a bitset +with some broad features you want) and then selectively re-enable +additional parts you want, for example if you want everything minimal, +but multiple event loop support, async and child watchers and the poll +backend, use this: + + #define EV_FEATURES 0 + #define EV_MULTIPLICITY 1 + #define EV_USE_POLL 1 + #define EV_CHILD_ENABLE 1 + #define EV_ASYNC_ENABLE 1 + +The actual value is a bitset, it can be a combination of the following +values: + +=over 4 + +=item C<1> - faster/larger code + +Use larger code to speed up some operations. + +Currently this is used to override some inlining decisions (enlarging the roughly +30% code size on amd64. + +Also disables C's in the code, unless you define C +explicitly to C<0>. + +Use of compiler flags such as C<-Os> with gcc that optimise for size are +recommended when disabling this feature. + +=item C<2> - faster/larger data structures + +Replaces the small 2-heap for timer management by a faster 4-heap, larger +hash table sizes and so on. This will usually further increase codesize +and can additionally have an effect on the size of data structures at +runtime. + +=item C<4> - full API configuration + +This enables priorities (sets C=2 and C=-2), and +enables multiplicity (C=1). + +It also enables a lot of the "lesser used" core API functions. See C +for details on which parts of the API are still available without this +feature, and do not complain if this subset changes over time. + +=item C<8> - enable all optional watcher types + +Enables all optional watcher types. If you want to selectively enable +only some watcher types other than I/O and timers (e.g. prepare, +embed, async, child...) you can enable them manually by defining +C to C<1> instead. + +=item C<16> - enable all backends + +This enables all backends - without this feature, you need to enable at +least one backend manually (C is a good choice). + +=item C<32> - enable OS-specific "helper" APIs + +Enable inotify, eventfd, signalfd and similar OS-specific helper APIs by +default. + +=back + +Compiling with C +reduces the compiled size of libev from 24.7Kb to 6.5Kb on my GNU/Linux +amd64 system, while still giving you I/O watchers, timers and monotonic +clock support. + +With an intelligent-enough linker (gcc+binutils are intelligent enough +when you use C<-Wl,--gc-sections -ffunction-sections>) functions unused by +your program might be left out as well - a binary starting a timer and an +I/O watcher then might come out at only 5Kb. =item EV_AVOID_STDIO @@ -3968,17 +3994,17 @@ statically allocates some 12-24 bytes per signal number. =item EV_PID_HASHSIZE C watchers use a small hash table to distribute workload by -pid. The default size is C<16> (or C<1> with C), usually more -than enough. If you need to manage thousands of children you might want to -increase this value (I be a power of two). +pid. The default size is C<16> (or C<1> with C disabled), +usually more than enough. If you need to manage thousands of children you +might want to increase this value (I be a power of two). =item EV_INOTIFY_HASHSIZE C watchers use a small hash table to distribute workload by -inotify watch id. The default size is C<16> (or C<1> with C), -usually more than enough. If you need to manage thousands of C -watchers you might want to increase this value (I be a power of -two). +inotify watch id. The default size is C<16> (or C<1> with C +disabled), usually more than enough. If you need to manage thousands of +C watchers you might want to increase this value (I be a +power of two). =item EV_USE_4HEAP @@ -3987,8 +4013,8 @@ timer and periodics heaps, libev uses a 4-heap when this symbol is defined to C<1>. The 4-heap uses more complicated (longer) code but has noticeably faster performance with many (thousands) of watchers. -The default is C<1> unless C is set in which case it is C<0> -(disabled). +The default is C<1>, unless C overrides it, in which case it +will be C<0>. =item EV_HEAP_CACHE_AT @@ -3999,8 +4025,8 @@ which uses 8-12 bytes more per watcher and a few hundred bytes more code, but avoids random read accesses on heap changes. This improves performance noticeably with many (hundreds) of watchers. -The default is C<1> unless C is set in which case it is C<0> -(disabled). +The default is C<1>, unless C overrides it, in which case it +will be C<0>. =item EV_VERIFY @@ -4012,8 +4038,8 @@ called once per loop, which can slow down libev. If set to C<3>, then the verification code will be called very frequently, which will slow down libev considerably. -The default is C<1>, unless C is set, in which case it will be -C<0>. +The default is C<1>, unless C overrides it, in which case it +will be C<0>. =item EV_COMMON @@ -4081,15 +4107,9 @@ file. The usage in rxvt-unicode is simpler. It has a F header file that everybody includes and which overrides some configure choices: - #define EV_MINIMAL 1 - #define EV_USE_POLL 0 - #define EV_MULTIPLICITY 0 - #define EV_PERIODIC_ENABLE 0 - #define EV_STAT_ENABLE 0 - #define EV_FORK_ENABLE 0 + #define EV_FEATURES 0 + #define EV_USE_SELECT 1 #define EV_CONFIG_H - #define EV_MINPRI 0 - #define EV_MAXPRI 0 #include "ev++.h" -- cgit v1.2.3