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@ -1,7 +1,7 @@ |
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/*
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* libev native API header |
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* |
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* Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
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* Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without modifica- |
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@ -44,55 +44,101 @@ |
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extern "C" { |
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#endif |
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typedef double ev_tstamp; |
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/*****************************************************************************/ |
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/* pre-4.0 compatibility */ |
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#ifndef EV_COMPAT3 |
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# define EV_COMPAT3 1 |
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#endif |
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/* these priorities are inclusive, higher priorities will be called earlier */ |
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#ifndef EV_FEATURES |
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# define EV_FEATURES 0x7f |
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#endif |
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#define EV_FEATURE_CODE ((EV_FEATURES) & 1) |
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#define EV_FEATURE_DATA ((EV_FEATURES) & 2) |
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#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4) |
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#define EV_FEATURE_API ((EV_FEATURES) & 8) |
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#define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16) |
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#define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32) |
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#define EV_FEATURE_OS ((EV_FEATURES) & 64) |
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/* these priorities are inclusive, higher priorities will be invoked earlier */ |
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#ifndef EV_MINPRI |
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# define EV_MINPRI -2 |
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# define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0) |
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#endif |
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#ifndef EV_MAXPRI |
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# define EV_MAXPRI +2 |
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# define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0) |
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#endif |
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#ifndef EV_MULTIPLICITY |
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# define EV_MULTIPLICITY 1 |
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# define EV_MULTIPLICITY EV_FEATURE_CONFIG |
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#endif |
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#ifndef EV_PERIODIC_ENABLE |
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# define EV_PERIODIC_ENABLE 1 |
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# define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS |
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#endif |
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#ifndef EV_STAT_ENABLE |
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# define EV_STAT_ENABLE 1 |
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# define EV_STAT_ENABLE EV_FEATURE_WATCHERS |
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#endif |
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#ifndef EV_PREPARE_ENABLE |
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# define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS |
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#endif |
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#ifndef EV_CHECK_ENABLE |
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# define EV_CHECK_ENABLE EV_FEATURE_WATCHERS |
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#endif |
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#ifndef EV_IDLE_ENABLE |
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# define EV_IDLE_ENABLE 1 |
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# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS |
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#endif |
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#ifndef EV_FORK_ENABLE |
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# define EV_FORK_ENABLE 1 |
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# define EV_FORK_ENABLE EV_FEATURE_WATCHERS |
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#endif |
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#ifndef EV_EMBED_ENABLE |
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# define EV_EMBED_ENABLE 1 |
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#ifndef EV_SIGNAL_ENABLE |
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# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS |
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#endif |
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#ifndef EV_CHILD_ENABLE |
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# ifdef _WIN32 |
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# define EV_CHILD_ENABLE 0 |
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# else |
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# define EV_CHILD_ENABLE EV_FEATURE_WATCHERS |
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#endif |
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#endif |
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#ifndef EV_ASYNC_ENABLE |
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# define EV_ASYNC_ENABLE 1 |
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# define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS |
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#endif |
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#ifndef EV_EMBED_ENABLE |
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# define EV_EMBED_ENABLE EV_FEATURE_WATCHERS |
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#endif |
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#ifndef EV_WALK_ENABLE |
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# define EV_WALK_ENABLE 0 /* not yet */ |
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#endif |
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/*****************************************************************************/ |
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#if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE |
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# undef EV_SIGNAL_ENABLE |
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# define EV_SIGNAL_ENABLE 1 |
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#endif |
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/*****************************************************************************/ |
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typedef double ev_tstamp; |
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#ifndef EV_ATOMIC_T |
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# include <signal.h> |
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# define EV_ATOMIC_T sig_atomic_t volatile |
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#endif |
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/*****************************************************************************/ |
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#if EV_STAT_ENABLE |
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# ifdef _WIN32 |
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# include <time.h> |
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@ -130,40 +176,43 @@ struct ev_loop; |
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# define EV_INLINE static |
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#endif |
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#ifndef EV_PROTOTYPES |
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# define EV_PROTOTYPES 1 |
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#endif |
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/*****************************************************************************/ |
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#define EV_VERSION_MAJOR 4 |
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#define EV_VERSION_MINOR 0 |
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/* eventmask, revents, events... */ |
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#define EV_UNDEF -1 /* guaranteed to be invalid */ |
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#define EV_NONE 0x00 /* no events */ |
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#define EV_READ 0x01 /* ev_io detected read will not block */ |
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#define EV_WRITE 0x02 /* ev_io detected write will not block */ |
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#define EV__IOFDSET 0x80 /* internal use only */ |
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#define EV_IO EV_READ /* alias for type-detection */ |
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#define EV_TIMEOUT 0x00000100 /* timer timed out */ |
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#define EV_TIMER EV_TIMEOUT /* alias for type-detection */ |
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#define EV_PERIODIC 0x00000200 /* periodic timer timed out */ |
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#define EV_SIGNAL 0x00000400 /* signal was received */ |
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#define EV_CHILD 0x00000800 /* child/pid had status change */ |
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#define EV_STAT 0x00001000 /* stat data changed */ |
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#define EV_IDLE 0x00002000 /* event loop is idling */ |
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#define EV_PREPARE 0x00004000 /* event loop about to poll */ |
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#define EV_CHECK 0x00008000 /* event loop finished poll */ |
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#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
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#define EV_FORK 0x00020000 /* event loop resumed in child */ |
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#define EV_ASYNC 0x00040000 /* async intra-loop signal */ |
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#define EV_CUSTOM 0x01000000 /* for use by user code */ |
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#define EV_ERROR 0x80000000 /* sent when an error occurs */ |
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enum { |
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EV_UNDEF = -1, /* guaranteed to be invalid */ |
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EV_NONE = 0x00, /* no events */ |
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EV_READ = 0x01, /* ev_io detected read will not block */ |
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EV_WRITE = 0x02, /* ev_io detected write will not block */ |
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EV__IOFDSET = 0x80, /* internal use only */ |
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EV_IO = EV_READ, /* alias for type-detection */ |
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EV_TIMER = 0x00000100, /* timer timed out */ |
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EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */ |
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EV_PERIODIC = 0x00000200, /* periodic timer timed out */ |
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EV_SIGNAL = 0x00000400, /* signal was received */ |
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EV_CHILD = 0x00000800, /* child/pid had status change */ |
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EV_STAT = 0x00001000, /* stat data changed */ |
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EV_IDLE = 0x00002000, /* event loop is idling */ |
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EV_PREPARE = 0x00004000, /* event loop about to poll */ |
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EV_CHECK = 0x00008000, /* event loop finished poll */ |
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EV_EMBED = 0x00010000, /* embedded event loop needs sweep */ |
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EV_FORK = 0x00020000, /* event loop resumed in child */ |
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EV_ASYNC = 0x00040000, /* async intra-loop signal */ |
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EV_CUSTOM = 0x01000000, /* for use by user code */ |
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EV_ERROR = 0x80000000 /* sent when an error occurs */ |
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}; |
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/* can be used to add custom fields to all watchers, while losing binary compatibility */ |
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#ifndef EV_COMMON |
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# define EV_COMMON void *data; |
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#endif |
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#ifndef EV_PROTOTYPES |
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# define EV_PROTOTYPES 1 |
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#endif |
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#define EV_VERSION_MAJOR 3 |
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#define EV_VERSION_MINOR 9 |
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#ifndef EV_CB_DECLARE |
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# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
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@ -172,6 +221,9 @@ struct ev_loop; |
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# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
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#endif |
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/* not official, do not use */ |
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#define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents) |
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/*
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* struct member types: |
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* private: you may look at them, but not change them, |
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@ -191,7 +243,7 @@ struct ev_loop; |
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#if EV_MINPRI == EV_MAXPRI |
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# define EV_DECL_PRIORITY |
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#else |
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#elif !defined (EV_DECL_PRIORITY) |
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# define EV_DECL_PRIORITY int priority; |
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#endif |
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@ -398,24 +450,31 @@ union ev_any_watcher |
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#endif |
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}; |
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/* bits for ev_default_loop and ev_loop_new */ |
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/* flag bits for ev_default_loop and ev_loop_new */ |
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enum { |
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/* the default */ |
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#define EVFLAG_AUTO 0x00000000U /* not quite a mask */ |
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EVFLAG_AUTO = 0x00000000U, /* not quite a mask */ |
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/* flag bits */ |
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#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */ |
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#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */ |
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EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */ |
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EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */ |
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/* debugging/feature disable */ |
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#define EVFLAG_NOINOTIFY 0x00100000U /* do not attempt to use inotify */ |
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#define EVFLAG_NOSIGFD 0 /* compatibility to pre-3.9 */ |
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#define EVFLAG_SIGNALFD 0x00200000U /* attempt to use signalfd */ |
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EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */ |
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#if EV_COMPAT3 |
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EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */ |
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#endif |
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EVFLAG_SIGNALFD = 0x00200000U /* attempt to use signalfd */ |
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}; |
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/* method bits to be ored together */ |
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#define EVBACKEND_SELECT 0x00000001U /* about anywhere */ |
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#define EVBACKEND_POLL 0x00000002U /* !win */ |
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#define EVBACKEND_EPOLL 0x00000004U /* linux */ |
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#define EVBACKEND_KQUEUE 0x00000008U /* bsd */ |
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#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */ |
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#define EVBACKEND_PORT 0x00000020U /* solaris 10 */ |
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#define EVBACKEND_ALL 0x0000003FU |
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enum { |
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EVBACKEND_SELECT = 0x00000001U, /* about anywhere */ |
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EVBACKEND_POLL = 0x00000002U, /* !win */ |
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EVBACKEND_EPOLL = 0x00000004U, /* linux */ |
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EVBACKEND_KQUEUE = 0x00000008U, /* bsd */ |
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EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */ |
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EVBACKEND_PORT = 0x00000020U, /* solaris 10 */ |
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EVBACKEND_ALL = 0x0000003FU |
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}; |
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#if EV_PROTOTYPES |
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int ev_version_major (void); |
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@ -520,15 +579,22 @@ void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
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#endif /* prototypes */ |
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#define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
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#define EVLOOP_ONESHOT 2 /* block *once* only */ |
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#define EVUNLOOP_CANCEL 0 /* undo unloop */ |
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#define EVUNLOOP_ONE 1 /* unloop once */ |
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#define EVUNLOOP_ALL 2 /* unloop all loops */ |
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/* ev_run flags values */ |
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enum { |
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EVRUN_NOWAIT = 1, /* do not block/wait */ |
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EVRUN_ONCE = 2 /* block *once* only */ |
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}; |
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/* ev_break how values */ |
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enum { |
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EVBREAK_CANCEL = 0, /* undo unloop */ |
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EVBREAK_ONE = 1, /* unloop once */ |
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EVBREAK_ALL = 2 /* unloop all loops */ |
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}; |
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#if EV_PROTOTYPES |
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void ev_loop (EV_P_ int flags); |
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void ev_unloop (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
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void ev_run (EV_P_ int flags); |
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void ev_break (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
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/*
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* ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
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@ -544,10 +610,10 @@ void ev_unref (EV_P); |
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*/ |
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void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
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# if EV_MINIMAL < 2 |
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unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
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unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
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void ev_loop_verify (EV_P); /* abort if loop data corrupted */ |
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# if EV_FEATURE_API |
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unsigned int ev_iteration (EV_P); /* number of loop iterations */ |
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unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
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void ev_verify (EV_P); /* abort if loop data corrupted */ |
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void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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@ -590,7 +656,7 @@ void ev_resume (EV_P); |
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#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
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#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
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#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
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#define ev_async_set(ev) do { (ev)->sent = 0; } while (0) |
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#define ev_async_set(ev) /* nop, yes, this is a serious in-joke */ |
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#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
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#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
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@ -632,7 +698,9 @@ void ev_resume (EV_P); |
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/* accepts any ev_watcher type */ |
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void ev_feed_event (EV_P_ void *w, int revents); |
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void ev_feed_fd_event (EV_P_ int fd, int revents); |
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#if EV_SIGNAL_ENABLE |
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void ev_feed_signal_event (EV_P_ int signum); |
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#endif |
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void ev_invoke (EV_P_ void *w, int revents); |
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int ev_clear_pending (EV_P_ void *w); |
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@ -653,12 +721,16 @@ void ev_periodic_again (EV_P_ ev_periodic *w); |
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#endif |
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/* only supported in the default loop */ |
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#if EV_SIGNAL_ENABLE |
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void ev_signal_start (EV_P_ ev_signal *w); |
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void ev_signal_stop (EV_P_ ev_signal *w); |
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#endif |
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/* only supported in the default loop */ |
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# if EV_CHILD_ENABLE |
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void ev_child_start (EV_P_ ev_child *w); |
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void ev_child_stop (EV_P_ ev_child *w); |
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# endif |
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# if EV_STAT_ENABLE |
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void ev_stat_start (EV_P_ ev_stat *w); |
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@ -671,11 +743,15 @@ void ev_idle_start (EV_P_ ev_idle *w); |
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void ev_idle_stop (EV_P_ ev_idle *w); |
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# endif |
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#if EV_PREPARE_ENABLE |
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void ev_prepare_start (EV_P_ ev_prepare *w); |
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void ev_prepare_stop (EV_P_ ev_prepare *w); |
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#endif |
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#if EV_CHECK_ENABLE |
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void ev_check_start (EV_P_ ev_check *w); |
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void ev_check_stop (EV_P_ ev_check *w); |
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#endif |
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# if EV_FORK_ENABLE |
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void ev_fork_start (EV_P_ ev_fork *w); |
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@ -695,6 +771,25 @@ void ev_async_stop (EV_P_ ev_async *w); |
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void ev_async_send (EV_P_ ev_async *w); |
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# endif |
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#if EV_COMPAT3 |
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#define EVLOOP_NONBLOCK EVRUN_NOWAIT |
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#define EVLOOP_ONESHOT EVRUN_ONCE |
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#define EVUNLOOP_CANCEL EVBREAK_CANCEL |
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#define EVUNLOOP_ONE EVBREAK_ONE |
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#define EVUNLOOP_ALL EVBREAK_ALL |
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#if EV_PROTOTYPES |
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EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); } |
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EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); } |
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#if EV_FEATURE_API |
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EV_INLINE void ev_loop_count (EV_P) { ev_iteration (EV_A); } |
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EV_INLINE void ev_loop_depth (EV_P) { ev_depth (EV_A); } |
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EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); } |
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#endif |
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#endif |
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#else |
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typedef struct ev_loop ev_loop; |
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#endif |
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#endif |
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#ifdef __cplusplus |
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Ryan Dahl
14 years ago