1 | /* |
1 | /* |
2 | * libev native API header |
2 | * libev native API header |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifndef EV_H__ |
40 | #ifndef EV_H_ |
41 | #define EV_H__ |
41 | #define EV_H_ |
42 | |
42 | |
43 | #ifdef __cplusplus |
43 | #ifdef __cplusplus |
44 | extern "C" { |
44 | extern "C" { |
45 | #endif |
45 | #endif |
46 | |
46 | |
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47 | /*****************************************************************************/ |
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48 | |
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49 | #ifndef EV_FEATURES |
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50 | # define EV_FEATURES 0x7f |
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51 | #endif |
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52 | |
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53 | #define EV_FEATURE_CODE ((EV_FEATURES) & 1) |
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54 | #define EV_FEATURE_DATA ((EV_FEATURES) & 2) |
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55 | #define EV_FEATURE_CONFIG ((EV_FEATURES) & 4) |
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56 | #define EV_FEATURE_API ((EV_FEATURES) & 8) |
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57 | #define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16) |
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58 | #define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32) |
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59 | #define EV_FEATURE_OS ((EV_FEATURES) & 64) |
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60 | |
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61 | /* these priorities are inclusive, higher priorities will be invoked earlier */ |
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62 | #ifndef EV_MINPRI |
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63 | # define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0) |
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64 | #endif |
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65 | #ifndef EV_MAXPRI |
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66 | # define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0) |
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67 | #endif |
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68 | |
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69 | #ifndef EV_MULTIPLICITY |
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70 | # define EV_MULTIPLICITY EV_FEATURE_CONFIG |
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71 | #endif |
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72 | |
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73 | #ifndef EV_PERIODIC_ENABLE |
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74 | # define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS |
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75 | #endif |
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76 | |
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77 | #ifndef EV_STAT_ENABLE |
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78 | # define EV_STAT_ENABLE EV_FEATURE_WATCHERS |
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79 | #endif |
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80 | |
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81 | #ifndef EV_PREPARE_ENABLE |
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82 | # define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS |
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83 | #endif |
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84 | |
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85 | #ifndef EV_CHECK_ENABLE |
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86 | # define EV_CHECK_ENABLE EV_FEATURE_WATCHERS |
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87 | #endif |
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88 | |
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89 | #ifndef EV_IDLE_ENABLE |
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90 | # define EV_IDLE_ENABLE EV_FEATURE_WATCHERS |
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91 | #endif |
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92 | |
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93 | #ifndef EV_FORK_ENABLE |
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94 | # define EV_FORK_ENABLE EV_FEATURE_WATCHERS |
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95 | #endif |
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96 | |
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97 | #ifndef EV_SIGNAL_ENABLE |
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98 | # define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS |
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99 | #endif |
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100 | |
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101 | #ifndef EV_CHILD_ENABLE |
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102 | # ifdef _WIN32 |
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103 | # define EV_CHILD_ENABLE 0 |
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104 | # else |
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105 | # define EV_CHILD_ENABLE EV_FEATURE_WATCHERS |
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106 | #endif |
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107 | #endif |
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108 | |
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109 | #ifndef EV_ASYNC_ENABLE |
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110 | # define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS |
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111 | #endif |
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112 | |
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113 | #ifndef EV_EMBED_ENABLE |
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114 | # define EV_EMBED_ENABLE EV_FEATURE_WATCHERS |
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115 | #endif |
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116 | |
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117 | #ifndef EV_WALK_ENABLE |
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118 | # define EV_WALK_ENABLE 0 /* not yet */ |
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119 | #endif |
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120 | |
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121 | /*****************************************************************************/ |
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122 | |
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123 | #if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE |
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124 | # undef EV_SIGNAL_ENABLE |
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125 | # define EV_SIGNAL_ENABLE 1 |
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126 | #endif |
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127 | |
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128 | /*****************************************************************************/ |
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129 | |
47 | typedef double ev_tstamp; |
130 | typedef double ev_tstamp; |
48 | |
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49 | /* these priorities are inclusive, higher priorities will be called earlier */ |
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50 | #ifndef EV_MINPRI |
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51 | # define EV_MINPRI -2 |
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52 | #endif |
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53 | #ifndef EV_MAXPRI |
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54 | # define EV_MAXPRI +2 |
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55 | #endif |
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56 | |
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57 | #ifndef EV_MULTIPLICITY |
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58 | # define EV_MULTIPLICITY 1 |
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59 | #endif |
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60 | |
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61 | #ifndef EV_PERIODIC_ENABLE |
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62 | # define EV_PERIODIC_ENABLE 1 |
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63 | #endif |
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64 | |
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65 | #ifndef EV_STAT_ENABLE |
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66 | # define EV_STAT_ENABLE 1 |
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67 | #endif |
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68 | |
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69 | #ifndef EV_IDLE_ENABLE |
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70 | # define EV_IDLE_ENABLE 1 |
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71 | #endif |
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72 | |
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73 | #ifndef EV_FORK_ENABLE |
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74 | # define EV_FORK_ENABLE 1 |
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75 | #endif |
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76 | |
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77 | #ifndef EV_EMBED_ENABLE |
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78 | # define EV_EMBED_ENABLE 1 |
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79 | #endif |
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80 | |
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81 | #ifndef EV_ASYNC_ENABLE |
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82 | # define EV_ASYNC_ENABLE 1 |
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83 | #endif |
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84 | |
131 | |
85 | #ifndef EV_ATOMIC_T |
132 | #ifndef EV_ATOMIC_T |
86 | # include <signal.h> |
133 | # include <signal.h> |
87 | # define EV_ATOMIC_T sig_atomic_t volatile |
134 | # define EV_ATOMIC_T sig_atomic_t volatile |
88 | #endif |
135 | #endif |
89 | |
136 | |
90 | /*****************************************************************************/ |
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91 | |
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92 | #if EV_STAT_ENABLE |
137 | #if EV_STAT_ENABLE |
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138 | # ifdef _WIN32 |
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139 | # include <time.h> |
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140 | # include <sys/types.h> |
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141 | # endif |
93 | # include <sys/stat.h> |
142 | # include <sys/stat.h> |
94 | #endif |
143 | #endif |
95 | |
144 | |
96 | /* support multiple event loops? */ |
145 | /* support multiple event loops? */ |
97 | #if EV_MULTIPLICITY |
146 | #if EV_MULTIPLICITY |
… | |
… | |
120 | # define EV_INLINE static inline |
169 | # define EV_INLINE static inline |
121 | #else |
170 | #else |
122 | # define EV_INLINE static |
171 | # define EV_INLINE static |
123 | #endif |
172 | #endif |
124 | |
173 | |
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174 | #ifndef EV_PROTOTYPES |
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175 | # define EV_PROTOTYPES 1 |
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176 | #endif |
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177 | |
125 | /*****************************************************************************/ |
178 | /*****************************************************************************/ |
126 | |
179 | |
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180 | #define EV_VERSION_MAJOR 4 |
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181 | #define EV_VERSION_MINOR 0 |
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182 | |
127 | /* eventmask, revents, events... */ |
183 | /* eventmask, revents, events... */ |
128 | #define EV_UNDEF -1L /* guaranteed to be invalid */ |
184 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
129 | #define EV_NONE 0x00L /* no events */ |
185 | #define EV_NONE 0x00 /* no events */ |
130 | #define EV_READ 0x01L /* ev_io detected read will not block */ |
186 | #define EV_READ 0x01 /* ev_io detected read will not block */ |
131 | #define EV_WRITE 0x02L /* ev_io detected write will not block */ |
187 | #define EV_WRITE 0x02 /* ev_io detected write will not block */ |
132 | #define EV_IOFDSET 0x80L /* internal use only */ |
188 | #define EV__IOFDSET 0x80 /* internal use only */ |
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189 | #define EV_IO EV_READ /* alias for type-detection */ |
133 | #define EV_TIMEOUT 0x00000100L /* timer timed out */ |
190 | #define EV_TIMER 0x00000100 /* timer timed out */ |
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191 | #define EV_TIMEOUT EV_TIMER /* pre 4.0 API compatibility */ |
134 | #define EV_PERIODIC 0x00000200L /* periodic timer timed out */ |
192 | #define EV_PERIODIC 0x00000200 /* periodic timer timed out */ |
135 | #define EV_SIGNAL 0x00000400L /* signal was received */ |
193 | #define EV_SIGNAL 0x00000400 /* signal was received */ |
136 | #define EV_CHILD 0x00000800L /* child/pid had status change */ |
194 | #define EV_CHILD 0x00000800 /* child/pid had status change */ |
137 | #define EV_STAT 0x00001000L /* stat data changed */ |
195 | #define EV_STAT 0x00001000 /* stat data changed */ |
138 | #define EV_IDLE 0x00002000L /* event loop is idling */ |
196 | #define EV_IDLE 0x00002000 /* event loop is idling */ |
139 | #define EV_PREPARE 0x00004000L /* event loop about to poll */ |
197 | #define EV_PREPARE 0x00004000 /* event loop about to poll */ |
140 | #define EV_CHECK 0x00008000L /* event loop finished poll */ |
198 | #define EV_CHECK 0x00008000 /* event loop finished poll */ |
141 | #define EV_EMBED 0x00010000L /* embedded event loop needs sweep */ |
199 | #define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
142 | #define EV_FORK 0x00020000L /* event loop resumed in child */ |
200 | #define EV_FORK 0x00020000 /* event loop resumed in child */ |
143 | #define EV_ASYNC 0x00040000L /* async intra-loop signal */ |
201 | #define EV_ASYNC 0x00040000 /* async intra-loop signal */ |
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202 | #define EV_CUSTOM 0x01000000 /* for use by user code */ |
144 | #define EV_ERROR 0x80000000L /* sent when an error occurs */ |
203 | #define EV_ERROR 0x80000000 /* sent when an error occurs */ |
145 | |
204 | |
146 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
205 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
147 | #ifndef EV_COMMON |
206 | #ifndef EV_COMMON |
148 | # define EV_COMMON void *data; |
207 | # define EV_COMMON void *data; |
149 | #endif |
208 | #endif |
150 | #ifndef EV_PROTOTYPES |
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151 | # define EV_PROTOTYPES 1 |
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152 | #endif |
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153 | |
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154 | #define EV_VERSION_MAJOR 3 |
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155 | #define EV_VERSION_MINOR 0 |
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156 | |
209 | |
157 | #ifndef EV_CB_DECLARE |
210 | #ifndef EV_CB_DECLARE |
158 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
211 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
159 | #endif |
212 | #endif |
160 | #ifndef EV_CB_INVOKE |
213 | #ifndef EV_CB_INVOKE |
161 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
214 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
162 | #endif |
215 | #endif |
163 | |
216 | |
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217 | /* not official, do not use */ |
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218 | #define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents) |
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219 | |
164 | /* |
220 | /* |
165 | * struct member types: |
221 | * struct member types: |
166 | * private: you can look at them, but not change them, and they might not mean anything to you. |
222 | * private: you may look at them, but not change them, |
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223 | * and they might not mean anything to you. |
167 | * ro: can be read anytime, but only changed when the watcher isn't active |
224 | * ro: can be read anytime, but only changed when the watcher isn't active. |
168 | * rw: can be read and modified anytime, even when the watcher is active |
225 | * rw: can be read and modified anytime, even when the watcher is active. |
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226 | * |
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227 | * some internal details that might be helpful for debugging: |
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228 | * |
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229 | * active is either 0, which means the watcher is not active, |
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230 | * or the array index of the watcher (periodics, timers) |
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231 | * or the array index + 1 (most other watchers) |
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232 | * or simply 1 for watchers that aren't in some array. |
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233 | * pending is either 0, in which case the watcher isn't, |
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234 | * or the array index + 1 in the pendings array. |
169 | */ |
235 | */ |
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236 | |
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237 | #if EV_MINPRI == EV_MAXPRI |
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238 | # define EV_DECL_PRIORITY |
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239 | #elif !defined (EV_DECL_PRIORITY) |
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240 | # define EV_DECL_PRIORITY int priority; |
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241 | #endif |
170 | |
242 | |
171 | /* shared by all watchers */ |
243 | /* shared by all watchers */ |
172 | #define EV_WATCHER(type) \ |
244 | #define EV_WATCHER(type) \ |
173 | int active; /* private */ \ |
245 | int active; /* private */ \ |
174 | int pending; /* private */ \ |
246 | int pending; /* private */ \ |
175 | int priority; /* private */ \ |
247 | EV_DECL_PRIORITY /* private */ \ |
176 | EV_COMMON /* rw */ \ |
248 | EV_COMMON /* rw */ \ |
177 | EV_CB_DECLARE (type) /* private */ |
249 | EV_CB_DECLARE (type) /* private */ |
178 | |
250 | |
179 | #define EV_WATCHER_LIST(type) \ |
251 | #define EV_WATCHER_LIST(type) \ |
180 | EV_WATCHER (type) \ |
252 | EV_WATCHER (type) \ |
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322 | ev_prepare prepare; /* private */ |
394 | ev_prepare prepare; /* private */ |
323 | ev_check check; /* unused */ |
395 | ev_check check; /* unused */ |
324 | ev_timer timer; /* unused */ |
396 | ev_timer timer; /* unused */ |
325 | ev_periodic periodic; /* unused */ |
397 | ev_periodic periodic; /* unused */ |
326 | ev_idle idle; /* unused */ |
398 | ev_idle idle; /* unused */ |
327 | ev_fork fork; /* unused */ |
399 | ev_fork fork; /* private */ |
328 | } ev_embed; |
400 | } ev_embed; |
329 | #endif |
401 | #endif |
330 | |
402 | |
331 | #if EV_ASYNC_ENABLE |
403 | #if EV_ASYNC_ENABLE |
332 | /* invoked when somebody calls ev_async_send on the watcher */ |
404 | /* invoked when somebody calls ev_async_send on the watcher */ |
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336 | EV_WATCHER (ev_async) |
408 | EV_WATCHER (ev_async) |
337 | |
409 | |
338 | EV_ATOMIC_T sent; /* private */ |
410 | EV_ATOMIC_T sent; /* private */ |
339 | } ev_async; |
411 | } ev_async; |
340 | |
412 | |
341 | # define ev_async_pending(w) (((w)->sent + 0) |
413 | # define ev_async_pending(w) (+(w)->sent) |
342 | #endif |
414 | #endif |
343 | |
415 | |
344 | /* the presence of this union forces similar struct layout */ |
416 | /* the presence of this union forces similar struct layout */ |
345 | union ev_any_watcher |
417 | union ev_any_watcher |
346 | { |
418 | { |
… | |
… | |
371 | #endif |
443 | #endif |
372 | }; |
444 | }; |
373 | |
445 | |
374 | /* bits for ev_default_loop and ev_loop_new */ |
446 | /* bits for ev_default_loop and ev_loop_new */ |
375 | /* the default */ |
447 | /* the default */ |
376 | #define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ |
448 | #define EVFLAG_AUTO 0x00000000U /* not quite a mask */ |
377 | /* flag bits */ |
449 | /* flag bits */ |
378 | #define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ |
450 | #define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */ |
379 | #define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */ |
451 | #define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */ |
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452 | /* debugging/feature disable */ |
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453 | #define EVFLAG_NOINOTIFY 0x00100000U /* do not attempt to use inotify */ |
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454 | #define EVFLAG_NOSIGFD 0 /* compatibility to pre-3.9 */ |
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455 | #define EVFLAG_SIGNALFD 0x00200000U /* attempt to use signalfd */ |
380 | /* method bits to be ored together */ |
456 | /* method bits to be ored together */ |
381 | #define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ |
457 | #define EVBACKEND_SELECT 0x00000001U /* about anywhere */ |
382 | #define EVBACKEND_POLL 0x00000002UL /* !win */ |
458 | #define EVBACKEND_POLL 0x00000002U /* !win */ |
383 | #define EVBACKEND_EPOLL 0x00000004UL /* linux */ |
459 | #define EVBACKEND_EPOLL 0x00000004U /* linux */ |
384 | #define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ |
460 | #define EVBACKEND_KQUEUE 0x00000008U /* bsd */ |
385 | #define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */ |
461 | #define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */ |
386 | #define EVBACKEND_PORT 0x00000020UL /* solaris 10 */ |
462 | #define EVBACKEND_PORT 0x00000020U /* solaris 10 */ |
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463 | #define EVBACKEND_ALL 0x0000003FU |
387 | |
464 | |
388 | #if EV_PROTOTYPES |
465 | #if EV_PROTOTYPES |
389 | int ev_version_major (void); |
466 | int ev_version_major (void); |
390 | int ev_version_minor (void); |
467 | int ev_version_minor (void); |
391 | |
468 | |
… | |
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408 | * retryable syscall error |
485 | * retryable syscall error |
409 | * (such as failed select, poll, epoll_wait) |
486 | * (such as failed select, poll, epoll_wait) |
410 | */ |
487 | */ |
411 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
488 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
412 | |
489 | |
413 | # if EV_MULTIPLICITY |
490 | #if EV_MULTIPLICITY |
414 | EV_INLINE struct ev_loop * |
491 | EV_INLINE struct ev_loop * |
415 | ev_default_loop_uc (void) |
492 | ev_default_loop_uc (void) |
416 | { |
493 | { |
417 | extern struct ev_loop *ev_default_loop_ptr; |
494 | extern struct ev_loop *ev_default_loop_ptr; |
418 | |
495 | |
… | |
… | |
441 | void ev_loop_destroy (EV_P); |
518 | void ev_loop_destroy (EV_P); |
442 | void ev_loop_fork (EV_P); |
519 | void ev_loop_fork (EV_P); |
443 | |
520 | |
444 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
521 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
445 | |
522 | |
446 | # else |
523 | #else |
447 | |
524 | |
448 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
525 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
449 | |
526 | |
450 | EV_INLINE ev_tstamp |
527 | EV_INLINE ev_tstamp |
451 | ev_now (void) |
528 | ev_now (void) |
452 | { |
529 | { |
453 | extern ev_tstamp ev_rt_now; |
530 | extern ev_tstamp ev_rt_now; |
454 | |
531 | |
455 | return ev_rt_now; |
532 | return ev_rt_now; |
456 | } |
533 | } |
457 | # endif |
534 | #endif /* multiplicity */ |
458 | |
535 | |
459 | EV_INLINE int |
536 | EV_INLINE int |
460 | ev_is_default_loop (EV_P) |
537 | ev_is_default_loop (EV_P) |
461 | { |
538 | { |
462 | #if EV_MULTIPLICITY |
539 | #if EV_MULTIPLICITY |
… | |
… | |
473 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
550 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
474 | /* you can call it in either the parent or the child */ |
551 | /* you can call it in either the parent or the child */ |
475 | /* you can actually call it at any time, anywhere :) */ |
552 | /* you can actually call it at any time, anywhere :) */ |
476 | void ev_default_fork (void); |
553 | void ev_default_fork (void); |
477 | |
554 | |
478 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
555 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
479 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
556 | |
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557 | void ev_now_update (EV_P); /* update event loop time */ |
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558 | |
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559 | #if EV_WALK_ENABLE |
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560 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
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561 | /* callback on every such watcher. The callback might stop the watcher, */ |
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562 | /* but do nothing else with the loop */ |
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563 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
480 | #endif |
564 | #endif |
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565 | |
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566 | #endif /* prototypes */ |
481 | |
567 | |
482 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
568 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
483 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
569 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
484 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
570 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
485 | #define EVUNLOOP_ONE 1 /* unloop once */ |
571 | #define EVUNLOOP_ONE 1 /* unloop once */ |
… | |
… | |
487 | |
573 | |
488 | #if EV_PROTOTYPES |
574 | #if EV_PROTOTYPES |
489 | void ev_loop (EV_P_ int flags); |
575 | void ev_loop (EV_P_ int flags); |
490 | 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 */ |
576 | 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 */ |
491 | |
577 | |
492 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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493 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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494 | |
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495 | /* |
578 | /* |
496 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
579 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
497 | * keeps one reference. if you have a long-runing watcher you never unregister that |
580 | * keeps one reference. if you have a long-running watcher you never unregister that |
498 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
581 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
499 | */ |
582 | */ |
500 | void ev_ref (EV_P); |
583 | void ev_ref (EV_P); |
501 | void ev_unref (EV_P); |
584 | void ev_unref (EV_P); |
502 | |
585 | |
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586 | /* |
503 | /* convinience function, wait for a single event, without registering an event watcher */ |
587 | * convenience function, wait for a single event, without registering an event watcher |
504 | /* if timeout is < 0, do wait indefinitely */ |
588 | * if timeout is < 0, do wait indefinitely |
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589 | */ |
505 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
590 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
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591 | |
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592 | # if EV_FEATURE_API |
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593 | unsigned int ev_iteration (EV_P); /* number of loop iterations */ |
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594 | unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
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595 | void ev_verify (EV_P); /* abort if loop data corrupted */ |
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596 | |
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597 | /* pre 4.0 API compatibility */ |
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598 | # if EV_MULTIPLICITY |
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599 | # define ev_loop_count(l) ev_iteration (l) |
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600 | # define ev_loop_depth(l) ev_depth (l) |
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601 | # define ev_loop_verify(l) ev_verify (l) |
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602 | # endif |
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603 | |
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604 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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605 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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606 | |
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607 | /* advanced stuff for threading etc. support, see docs */ |
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608 | void ev_set_userdata (EV_P_ void *data); |
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609 | void *ev_userdata (EV_P); |
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610 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)); |
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611 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)); |
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612 | |
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613 | unsigned int ev_pending_count (EV_P); /* number of pending events, if any */ |
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614 | void ev_invoke_pending (EV_P); /* invoke all pending watchers */ |
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615 | |
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616 | /* |
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617 | * stop/start the timer handling. |
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618 | */ |
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619 | void ev_suspend (EV_P); |
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620 | void ev_resume (EV_P); |
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621 | #endif |
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622 | |
506 | #endif |
623 | #endif |
507 | |
624 | |
508 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
625 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
509 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
626 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
510 | #define ev_init(ev,cb_) do { \ |
627 | #define ev_init(ev,cb_) do { \ |
511 | ((ev_watcher *)(void *)(ev))->active = \ |
628 | ((ev_watcher *)(void *)(ev))->active = \ |
512 | ((ev_watcher *)(void *)(ev))->pending = \ |
629 | ((ev_watcher *)(void *)(ev))->pending = 0; \ |
513 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
630 | ev_set_priority ((ev), 0); \ |
514 | ev_set_cb ((ev), cb_); \ |
631 | ev_set_cb ((ev), cb_); \ |
515 | } while (0) |
632 | } while (0) |
516 | |
633 | |
517 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) |
634 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) |
518 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
635 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
519 | #define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
636 | #define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0) |
520 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
637 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
521 | #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) |
638 | #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) |
522 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
639 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
523 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
640 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
524 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
641 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
525 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
642 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
526 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
643 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
527 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
644 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
528 | #define ev_async_set(ev) do { (ev)->sent = 0; } while (0) |
645 | #define ev_async_set(ev) /* nop, yes, this is a serious in-joke */ |
529 | |
646 | |
530 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
647 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
531 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
648 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
532 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
649 | #define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) |
533 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
650 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
534 | #define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0) |
651 | #define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0) |
535 | #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0) |
652 | #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0) |
536 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
653 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
537 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
654 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
538 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
655 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
539 | #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) |
656 | #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) |
540 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
657 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
541 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
658 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
542 | |
659 | |
543 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
660 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
544 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
661 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
545 | |
662 | |
546 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
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547 | #define ev_cb(ev) (ev)->cb /* rw */ |
663 | #define ev_cb(ev) (ev)->cb /* rw */ |
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664 | |
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665 | #if EV_MINPRI == EV_MAXPRI |
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666 | # define ev_priority(ev) ((ev), EV_MINPRI) |
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667 | # define ev_set_priority(ev,pri) ((ev), (pri)) |
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668 | #else |
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669 | # define ev_priority(ev) (+(((ev_watcher *)(void *)(ev))->priority)) |
548 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
670 | # define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri) |
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671 | #endif |
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672 | |
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673 | #define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at) |
549 | |
674 | |
550 | #ifndef ev_set_cb |
675 | #ifndef ev_set_cb |
551 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
676 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
552 | #endif |
677 | #endif |
553 | |
678 | |
554 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
679 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
555 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
680 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
556 | #if EV_PROTOTYPES |
681 | #if EV_PROTOTYPES |
557 | |
682 | |
558 | /* feeds an event into a watcher as if the event actually occured */ |
683 | /* feeds an event into a watcher as if the event actually occured */ |
559 | /* accepts any ev_watcher type */ |
684 | /* accepts any ev_watcher type */ |
560 | void ev_feed_event (EV_P_ void *w, int revents); |
685 | void ev_feed_event (EV_P_ void *w, int revents); |
561 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
686 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
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687 | #if EV_SIGNAL_ENABLE |
562 | void ev_feed_signal_event (EV_P_ int signum); |
688 | void ev_feed_signal_event (EV_P_ int signum); |
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689 | #endif |
563 | void ev_invoke (EV_P_ void *w, int revents); |
690 | void ev_invoke (EV_P_ void *w, int revents); |
564 | int ev_clear_pending (EV_P_ void *w); |
691 | int ev_clear_pending (EV_P_ void *w); |
565 | |
692 | |
566 | void ev_io_start (EV_P_ ev_io *w); |
693 | void ev_io_start (EV_P_ ev_io *w); |
567 | void ev_io_stop (EV_P_ ev_io *w); |
694 | void ev_io_stop (EV_P_ ev_io *w); |
568 | |
695 | |
569 | void ev_timer_start (EV_P_ ev_timer *w); |
696 | void ev_timer_start (EV_P_ ev_timer *w); |
570 | void ev_timer_stop (EV_P_ ev_timer *w); |
697 | void ev_timer_stop (EV_P_ ev_timer *w); |
571 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
698 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
572 | void ev_timer_again (EV_P_ ev_timer *w); |
699 | void ev_timer_again (EV_P_ ev_timer *w); |
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700 | /* return remaining time */ |
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701 | ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w); |
573 | |
702 | |
574 | #if EV_PERIODIC_ENABLE |
703 | #if EV_PERIODIC_ENABLE |
575 | void ev_periodic_start (EV_P_ ev_periodic *w); |
704 | void ev_periodic_start (EV_P_ ev_periodic *w); |
576 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
705 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
577 | void ev_periodic_again (EV_P_ ev_periodic *w); |
706 | void ev_periodic_again (EV_P_ ev_periodic *w); |
578 | #endif |
707 | #endif |
579 | |
708 | |
580 | /* only supported in the default loop */ |
709 | /* only supported in the default loop */ |
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710 | #if EV_SIGNAL_ENABLE |
581 | void ev_signal_start (EV_P_ ev_signal *w); |
711 | void ev_signal_start (EV_P_ ev_signal *w); |
582 | void ev_signal_stop (EV_P_ ev_signal *w); |
712 | void ev_signal_stop (EV_P_ ev_signal *w); |
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713 | #endif |
583 | |
714 | |
584 | /* only supported in the default loop */ |
715 | /* only supported in the default loop */ |
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716 | # if EV_CHILD_ENABLE |
585 | void ev_child_start (EV_P_ ev_child *w); |
717 | void ev_child_start (EV_P_ ev_child *w); |
586 | void ev_child_stop (EV_P_ ev_child *w); |
718 | void ev_child_stop (EV_P_ ev_child *w); |
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719 | # endif |
587 | |
720 | |
588 | # if EV_STAT_ENABLE |
721 | # if EV_STAT_ENABLE |
589 | void ev_stat_start (EV_P_ ev_stat *w); |
722 | void ev_stat_start (EV_P_ ev_stat *w); |
590 | void ev_stat_stop (EV_P_ ev_stat *w); |
723 | void ev_stat_stop (EV_P_ ev_stat *w); |
591 | void ev_stat_stat (EV_P_ ev_stat *w); |
724 | void ev_stat_stat (EV_P_ ev_stat *w); |
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… | |
594 | # if EV_IDLE_ENABLE |
727 | # if EV_IDLE_ENABLE |
595 | void ev_idle_start (EV_P_ ev_idle *w); |
728 | void ev_idle_start (EV_P_ ev_idle *w); |
596 | void ev_idle_stop (EV_P_ ev_idle *w); |
729 | void ev_idle_stop (EV_P_ ev_idle *w); |
597 | # endif |
730 | # endif |
598 | |
731 | |
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732 | #if EV_PREPARE_ENABLE |
599 | void ev_prepare_start (EV_P_ ev_prepare *w); |
733 | void ev_prepare_start (EV_P_ ev_prepare *w); |
600 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
734 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
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735 | #endif |
601 | |
736 | |
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737 | #if EV_CHECK_ENABLE |
602 | void ev_check_start (EV_P_ ev_check *w); |
738 | void ev_check_start (EV_P_ ev_check *w); |
603 | void ev_check_stop (EV_P_ ev_check *w); |
739 | void ev_check_stop (EV_P_ ev_check *w); |
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740 | #endif |
604 | |
741 | |
605 | # if EV_FORK_ENABLE |
742 | # if EV_FORK_ENABLE |
606 | void ev_fork_start (EV_P_ ev_fork *w); |
743 | void ev_fork_start (EV_P_ ev_fork *w); |
607 | void ev_fork_stop (EV_P_ ev_fork *w); |
744 | void ev_fork_stop (EV_P_ ev_fork *w); |
608 | # endif |
745 | # endif |