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 | /* pre-4.0 compatibility */ |
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50 | #ifndef EV_COMPAT3 |
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51 | # define EV_COMPAT3 1 |
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52 | #endif |
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53 | |
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54 | #ifndef EV_FEATURES |
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55 | # define EV_FEATURES 0x7f |
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56 | #endif |
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57 | |
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58 | #define EV_FEATURE_CODE ((EV_FEATURES) & 1) |
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59 | #define EV_FEATURE_DATA ((EV_FEATURES) & 2) |
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60 | #define EV_FEATURE_CONFIG ((EV_FEATURES) & 4) |
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61 | #define EV_FEATURE_API ((EV_FEATURES) & 8) |
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62 | #define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16) |
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63 | #define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32) |
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64 | #define EV_FEATURE_OS ((EV_FEATURES) & 64) |
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65 | |
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66 | /* these priorities are inclusive, higher priorities will be invoked earlier */ |
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67 | #ifndef EV_MINPRI |
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68 | # define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0) |
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69 | #endif |
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70 | #ifndef EV_MAXPRI |
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71 | # define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0) |
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72 | #endif |
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73 | |
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74 | #ifndef EV_MULTIPLICITY |
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75 | # define EV_MULTIPLICITY EV_FEATURE_CONFIG |
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76 | #endif |
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77 | |
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78 | #ifndef EV_PERIODIC_ENABLE |
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79 | # define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS |
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80 | #endif |
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81 | |
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82 | #ifndef EV_STAT_ENABLE |
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83 | # define EV_STAT_ENABLE EV_FEATURE_WATCHERS |
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84 | #endif |
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85 | |
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86 | #ifndef EV_PREPARE_ENABLE |
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87 | # define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS |
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88 | #endif |
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89 | |
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90 | #ifndef EV_CHECK_ENABLE |
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91 | # define EV_CHECK_ENABLE EV_FEATURE_WATCHERS |
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92 | #endif |
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93 | |
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94 | #ifndef EV_IDLE_ENABLE |
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95 | # define EV_IDLE_ENABLE EV_FEATURE_WATCHERS |
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96 | #endif |
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97 | |
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98 | #ifndef EV_FORK_ENABLE |
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99 | # define EV_FORK_ENABLE EV_FEATURE_WATCHERS |
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100 | #endif |
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101 | |
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102 | #ifndef EV_SIGNAL_ENABLE |
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103 | # define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS |
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104 | #endif |
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105 | |
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106 | #ifndef EV_CHILD_ENABLE |
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107 | # ifdef _WIN32 |
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108 | # define EV_CHILD_ENABLE 0 |
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109 | # else |
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110 | # define EV_CHILD_ENABLE EV_FEATURE_WATCHERS |
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111 | #endif |
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112 | #endif |
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113 | |
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114 | #ifndef EV_ASYNC_ENABLE |
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115 | # define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS |
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116 | #endif |
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117 | |
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118 | #ifndef EV_EMBED_ENABLE |
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119 | # define EV_EMBED_ENABLE EV_FEATURE_WATCHERS |
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120 | #endif |
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121 | |
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122 | #ifndef EV_WALK_ENABLE |
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123 | # define EV_WALK_ENABLE 0 /* not yet */ |
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124 | #endif |
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125 | |
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126 | /*****************************************************************************/ |
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127 | |
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128 | #if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE |
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129 | # undef EV_SIGNAL_ENABLE |
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130 | # define EV_SIGNAL_ENABLE 1 |
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131 | #endif |
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132 | |
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133 | /*****************************************************************************/ |
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134 | |
47 | typedef double ev_tstamp; |
135 | 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 | |
136 | |
85 | #ifndef EV_ATOMIC_T |
137 | #ifndef EV_ATOMIC_T |
86 | # include <signal.h> |
138 | # include <signal.h> |
87 | # define EV_ATOMIC_T sig_atomic_t volatile |
139 | # define EV_ATOMIC_T sig_atomic_t volatile |
88 | #endif |
140 | #endif |
89 | |
141 | |
90 | /*****************************************************************************/ |
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91 | |
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92 | #if EV_STAT_ENABLE |
142 | #if EV_STAT_ENABLE |
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143 | # ifdef _WIN32 |
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144 | # include <time.h> |
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145 | # include <sys/types.h> |
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146 | # endif |
93 | # include <sys/stat.h> |
147 | # include <sys/stat.h> |
94 | #endif |
148 | #endif |
95 | |
149 | |
96 | /* support multiple event loops? */ |
150 | /* support multiple event loops? */ |
97 | #if EV_MULTIPLICITY |
151 | #if EV_MULTIPLICITY |
98 | struct ev_loop; |
152 | struct ev_loop; |
99 | # define EV_P struct ev_loop *loop |
153 | # define EV_P struct ev_loop *loop |
100 | # define EV_P_ EV_P, |
154 | # define EV_P_ EV_P, |
101 | # define EV_A loop |
155 | # define EV_A loop |
102 | # define EV_A_ EV_A, |
156 | # define EV_A_ EV_A, |
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157 | # define EV_DEFAULT_UC ev_default_loop_uc () |
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158 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, |
103 | # define EV_DEFAULT ev_default_loop (0) |
159 | # define EV_DEFAULT ev_default_loop (0) |
104 | # define EV_DEFAULT_ EV_DEFAULT, |
160 | # define EV_DEFAULT_ EV_DEFAULT, |
105 | #else |
161 | #else |
106 | # define EV_P void |
162 | # define EV_P void |
107 | # define EV_P_ |
163 | # define EV_P_ |
108 | # define EV_A |
164 | # define EV_A |
109 | # define EV_A_ |
165 | # define EV_A_ |
110 | # define EV_DEFAULT |
166 | # define EV_DEFAULT |
111 | # define EV_DEFAULT_ |
167 | # define EV_DEFAULT_ |
112 | |
168 | # define EV_DEFAULT_UC |
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169 | # define EV_DEFAULT_UC_ |
113 | # undef EV_EMBED_ENABLE |
170 | # undef EV_EMBED_ENABLE |
114 | #endif |
171 | #endif |
115 | |
172 | |
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173 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
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174 | # define EV_INLINE static inline |
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175 | #else |
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176 | # define EV_INLINE static |
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177 | #endif |
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178 | |
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179 | #ifndef EV_PROTOTYPES |
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180 | # define EV_PROTOTYPES 1 |
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181 | #endif |
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182 | |
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183 | /*****************************************************************************/ |
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184 | |
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185 | #define EV_VERSION_MAJOR 4 |
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186 | #define EV_VERSION_MINOR 0 |
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187 | |
116 | /* eventmask, revents, events... */ |
188 | /* eventmask, revents, events... */ |
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189 | enum { |
117 | #define EV_UNDEF -1L /* guaranteed to be invalid */ |
190 | EV_UNDEF = -1, /* guaranteed to be invalid */ |
118 | #define EV_NONE 0x00L /* no events */ |
191 | EV_NONE = 0x00, /* no events */ |
119 | #define EV_READ 0x01L /* ev_io detected read will not block */ |
192 | EV_READ = 0x01, /* ev_io detected read will not block */ |
120 | #define EV_WRITE 0x02L /* ev_io detected write will not block */ |
193 | EV_WRITE = 0x02, /* ev_io detected write will not block */ |
121 | #define EV_IOFDSET 0x80L /* internal use only */ |
194 | EV__IOFDSET = 0x80, /* internal use only */ |
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195 | EV_IO = EV_READ, /* alias for type-detection */ |
122 | #define EV_TIMEOUT 0x00000100L /* timer timed out */ |
196 | EV_TIMER = 0x00000100, /* timer timed out */ |
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197 | EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */ |
123 | #define EV_PERIODIC 0x00000200L /* periodic timer timed out */ |
198 | EV_PERIODIC = 0x00000200, /* periodic timer timed out */ |
124 | #define EV_SIGNAL 0x00000400L /* signal was received */ |
199 | EV_SIGNAL = 0x00000400, /* signal was received */ |
125 | #define EV_CHILD 0x00000800L /* child/pid had status change */ |
200 | EV_CHILD = 0x00000800, /* child/pid had status change */ |
126 | #define EV_STAT 0x00001000L /* stat data changed */ |
201 | EV_STAT = 0x00001000, /* stat data changed */ |
127 | #define EV_IDLE 0x00002000L /* event loop is idling */ |
202 | EV_IDLE = 0x00002000, /* event loop is idling */ |
128 | #define EV_PREPARE 0x00004000L /* event loop about to poll */ |
203 | EV_PREPARE = 0x00004000, /* event loop about to poll */ |
129 | #define EV_CHECK 0x00008000L /* event loop finished poll */ |
204 | EV_CHECK = 0x00008000, /* event loop finished poll */ |
130 | #define EV_EMBED 0x00010000L /* embedded event loop needs sweep */ |
205 | EV_EMBED = 0x00010000, /* embedded event loop needs sweep */ |
131 | #define EV_FORK 0x00020000L /* event loop resumed in child */ |
206 | EV_FORK = 0x00020000, /* event loop resumed in child */ |
132 | #define EV_ASYNC 0x00040000L /* async intra-loop signal */ |
207 | EV_ASYNC = 0x00040000, /* async intra-loop signal */ |
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208 | EV_CUSTOM = 0x01000000, /* for use by user code */ |
133 | #define EV_ERROR 0x80000000L /* sent when an error occurs */ |
209 | EV_ERROR = 0x80000000 /* sent when an error occurs */ |
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210 | }; |
134 | |
211 | |
135 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
212 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
136 | #ifndef EV_COMMON |
213 | #ifndef EV_COMMON |
137 | # define EV_COMMON void *data; |
214 | # define EV_COMMON void *data; |
138 | #endif |
215 | #endif |
139 | #ifndef EV_PROTOTYPES |
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140 | # define EV_PROTOTYPES 1 |
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141 | #endif |
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142 | |
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143 | #define EV_VERSION_MAJOR 3 |
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144 | #define EV_VERSION_MINOR 0 |
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145 | |
216 | |
146 | #ifndef EV_CB_DECLARE |
217 | #ifndef EV_CB_DECLARE |
147 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
218 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
148 | #endif |
219 | #endif |
149 | #ifndef EV_CB_INVOKE |
220 | #ifndef EV_CB_INVOKE |
150 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
221 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
151 | #endif |
222 | #endif |
152 | |
223 | |
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224 | /* not official, do not use */ |
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225 | #define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents) |
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226 | |
153 | /* |
227 | /* |
154 | * struct member types: |
228 | * struct member types: |
155 | * private: you can look at them, but not change them, and they might not mean anything to you. |
229 | * private: you may look at them, but not change them, |
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230 | * and they might not mean anything to you. |
156 | * ro: can be read anytime, but only changed when the watcher isn't active |
231 | * ro: can be read anytime, but only changed when the watcher isn't active. |
157 | * rw: can be read and modified anytime, even when the watcher is active |
232 | * rw: can be read and modified anytime, even when the watcher is active. |
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233 | * |
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234 | * some internal details that might be helpful for debugging: |
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235 | * |
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236 | * active is either 0, which means the watcher is not active, |
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237 | * or the array index of the watcher (periodics, timers) |
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238 | * or the array index + 1 (most other watchers) |
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239 | * or simply 1 for watchers that aren't in some array. |
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240 | * pending is either 0, in which case the watcher isn't, |
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241 | * or the array index + 1 in the pendings array. |
158 | */ |
242 | */ |
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243 | |
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244 | #if EV_MINPRI == EV_MAXPRI |
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245 | # define EV_DECL_PRIORITY |
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246 | #elif !defined (EV_DECL_PRIORITY) |
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247 | # define EV_DECL_PRIORITY int priority; |
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248 | #endif |
159 | |
249 | |
160 | /* shared by all watchers */ |
250 | /* shared by all watchers */ |
161 | #define EV_WATCHER(type) \ |
251 | #define EV_WATCHER(type) \ |
162 | int active; /* private */ \ |
252 | int active; /* private */ \ |
163 | int pending; /* private */ \ |
253 | int pending; /* private */ \ |
164 | int priority; /* private */ \ |
254 | EV_DECL_PRIORITY /* private */ \ |
165 | EV_COMMON /* rw */ \ |
255 | EV_COMMON /* rw */ \ |
166 | EV_CB_DECLARE (type) /* private */ |
256 | EV_CB_DECLARE (type) /* private */ |
167 | |
257 | |
168 | #define EV_WATCHER_LIST(type) \ |
258 | #define EV_WATCHER_LIST(type) \ |
169 | EV_WATCHER (type) \ |
259 | EV_WATCHER (type) \ |
… | |
… | |
311 | ev_prepare prepare; /* private */ |
401 | ev_prepare prepare; /* private */ |
312 | ev_check check; /* unused */ |
402 | ev_check check; /* unused */ |
313 | ev_timer timer; /* unused */ |
403 | ev_timer timer; /* unused */ |
314 | ev_periodic periodic; /* unused */ |
404 | ev_periodic periodic; /* unused */ |
315 | ev_idle idle; /* unused */ |
405 | ev_idle idle; /* unused */ |
316 | ev_fork fork; /* unused */ |
406 | ev_fork fork; /* private */ |
317 | } ev_embed; |
407 | } ev_embed; |
318 | #endif |
408 | #endif |
319 | |
409 | |
320 | #if EV_ASYNC_ENABLE |
410 | #if EV_ASYNC_ENABLE |
321 | /* invoked when somebody calls ev_async_send on the watcher */ |
411 | /* invoked when somebody calls ev_async_send on the watcher */ |
… | |
… | |
325 | EV_WATCHER (ev_async) |
415 | EV_WATCHER (ev_async) |
326 | |
416 | |
327 | EV_ATOMIC_T sent; /* private */ |
417 | EV_ATOMIC_T sent; /* private */ |
328 | } ev_async; |
418 | } ev_async; |
329 | |
419 | |
330 | # define ev_async_pending(w) (((w)->sent + 0) |
420 | # define ev_async_pending(w) (+(w)->sent) |
331 | #endif |
421 | #endif |
332 | |
422 | |
333 | /* the presence of this union forces similar struct layout */ |
423 | /* the presence of this union forces similar struct layout */ |
334 | union ev_any_watcher |
424 | union ev_any_watcher |
335 | { |
425 | { |
… | |
… | |
353 | struct ev_fork fork; |
443 | struct ev_fork fork; |
354 | #endif |
444 | #endif |
355 | #if EV_EMBED_ENABLE |
445 | #if EV_EMBED_ENABLE |
356 | struct ev_embed embed; |
446 | struct ev_embed embed; |
357 | #endif |
447 | #endif |
358 | #if EV_ASYND_ENABLE |
448 | #if EV_ASYNC_ENABLE |
359 | struct ev_async async; |
449 | struct ev_async async; |
360 | #endif |
450 | #endif |
361 | }; |
451 | }; |
362 | |
452 | |
363 | /* bits for ev_default_loop and ev_loop_new */ |
453 | /* flag bits for ev_default_loop and ev_loop_new */ |
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454 | enum { |
364 | /* the default */ |
455 | /* the default */ |
365 | #define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ |
456 | EVFLAG_AUTO = 0x00000000U, /* not quite a mask */ |
366 | /* flag bits */ |
457 | /* flag bits */ |
367 | #define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ |
458 | EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */ |
368 | #define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */ |
459 | EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */ |
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460 | /* debugging/feature disable */ |
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461 | EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */ |
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462 | #if EV_COMPAT3 |
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463 | EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */ |
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464 | #endif |
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465 | EVFLAG_SIGNALFD = 0x00200000U /* attempt to use signalfd */ |
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466 | }; |
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467 | |
369 | /* method bits to be ored together */ |
468 | /* method bits to be ored together */ |
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469 | enum { |
370 | #define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ |
470 | EVBACKEND_SELECT = 0x00000001U, /* about anywhere */ |
371 | #define EVBACKEND_POLL 0x00000002UL /* !win */ |
471 | EVBACKEND_POLL = 0x00000002U, /* !win */ |
372 | #define EVBACKEND_EPOLL 0x00000004UL /* linux */ |
472 | EVBACKEND_EPOLL = 0x00000004U, /* linux */ |
373 | #define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ |
473 | EVBACKEND_KQUEUE = 0x00000008U, /* bsd */ |
374 | #define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */ |
474 | EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */ |
375 | #define EVBACKEND_PORT 0x00000020UL /* solaris 10 */ |
475 | EVBACKEND_PORT = 0x00000020U, /* solaris 10 */ |
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476 | EVBACKEND_ALL = 0x0000003FU |
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477 | }; |
376 | |
478 | |
377 | #if EV_PROTOTYPES |
479 | #if EV_PROTOTYPES |
378 | int ev_version_major (void); |
480 | int ev_version_major (void); |
379 | int ev_version_minor (void); |
481 | int ev_version_minor (void); |
380 | |
482 | |
… | |
… | |
397 | * retryable syscall error |
499 | * retryable syscall error |
398 | * (such as failed select, poll, epoll_wait) |
500 | * (such as failed select, poll, epoll_wait) |
399 | */ |
501 | */ |
400 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
502 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
401 | |
503 | |
402 | # if EV_MULTIPLICITY |
504 | #if EV_MULTIPLICITY |
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505 | EV_INLINE struct ev_loop * |
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506 | ev_default_loop_uc (void) |
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507 | { |
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508 | extern struct ev_loop *ev_default_loop_ptr; |
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509 | |
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510 | return ev_default_loop_ptr; |
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511 | } |
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512 | |
403 | /* the default loop is the only one that handles signals and child watchers */ |
513 | /* the default loop is the only one that handles signals and child watchers */ |
404 | /* you can call this as often as you like */ |
514 | /* you can call this as often as you like */ |
405 | static struct ev_loop * |
515 | EV_INLINE struct ev_loop * |
406 | ev_default_loop (unsigned int flags) |
516 | ev_default_loop (unsigned int flags) |
407 | { |
517 | { |
408 | extern struct ev_loop *ev_default_loop_ptr; |
518 | struct ev_loop *loop = ev_default_loop_uc (); |
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519 | |
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520 | if (!loop) |
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521 | { |
409 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
522 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
410 | |
523 | |
411 | if (!ev_default_loop_ptr) |
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412 | ev_default_loop_init (flags); |
524 | loop = ev_default_loop_init (flags); |
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525 | } |
413 | |
526 | |
414 | return ev_default_loop_ptr; |
527 | return loop; |
415 | } |
528 | } |
416 | |
529 | |
417 | /* create and destroy alternative loops that don't handle signals */ |
530 | /* create and destroy alternative loops that don't handle signals */ |
418 | struct ev_loop *ev_loop_new (unsigned int flags); |
531 | struct ev_loop *ev_loop_new (unsigned int flags); |
419 | void ev_loop_destroy (EV_P); |
532 | void ev_loop_destroy (EV_P); |
420 | void ev_loop_fork (EV_P); |
533 | void ev_loop_fork (EV_P); |
421 | |
534 | |
422 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
535 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
423 | |
536 | |
424 | # else |
537 | #else |
425 | |
538 | |
426 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
539 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
427 | |
540 | |
428 | static ev_tstamp |
541 | EV_INLINE ev_tstamp |
429 | ev_now (void) |
542 | ev_now (void) |
430 | { |
543 | { |
431 | extern ev_tstamp ev_rt_now; |
544 | extern ev_tstamp ev_rt_now; |
432 | |
545 | |
433 | return ev_rt_now; |
546 | return ev_rt_now; |
434 | } |
547 | } |
435 | # endif |
548 | #endif /* multiplicity */ |
436 | |
549 | |
437 | static int |
550 | EV_INLINE int |
438 | ev_is_default_loop (EV_P) |
551 | ev_is_default_loop (EV_P) |
439 | { |
552 | { |
440 | #if EV_MULTIPLICITY |
553 | #if EV_MULTIPLICITY |
441 | extern struct ev_loop *ev_default_loop_ptr; |
554 | extern struct ev_loop *ev_default_loop_ptr; |
442 | |
555 | |
… | |
… | |
451 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
564 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
452 | /* you can call it in either the parent or the child */ |
565 | /* you can call it in either the parent or the child */ |
453 | /* you can actually call it at any time, anywhere :) */ |
566 | /* you can actually call it at any time, anywhere :) */ |
454 | void ev_default_fork (void); |
567 | void ev_default_fork (void); |
455 | |
568 | |
456 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
569 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
457 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
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458 | #endif |
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459 | |
570 | |
460 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
571 | void ev_now_update (EV_P); /* update event loop time */ |
461 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
572 | |
462 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
573 | #if EV_WALK_ENABLE |
463 | #define EVUNLOOP_ONE 1 /* unloop once */ |
574 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
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575 | /* callback on every such watcher. The callback might stop the watcher, */ |
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576 | /* but do nothing else with the loop */ |
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577 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
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578 | #endif |
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579 | |
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580 | #endif /* prototypes */ |
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581 | |
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582 | /* ev_run flags values */ |
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583 | enum { |
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584 | EVRUN_NOWAIT = 1, /* do not block/wait */ |
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585 | EVRUN_ONCE = 2 /* block *once* only */ |
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586 | }; |
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587 | |
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588 | /* ev_break how values */ |
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589 | enum { |
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590 | EVBREAK_CANCEL = 0, /* undo unloop */ |
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591 | EVBREAK_ONE = 1, /* unloop once */ |
464 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
592 | EVBREAK_ALL = 2 /* unloop all loops */ |
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|
593 | }; |
465 | |
594 | |
466 | #if EV_PROTOTYPES |
595 | #if EV_PROTOTYPES |
467 | void ev_loop (EV_P_ int flags); |
596 | void ev_run (EV_P_ int flags); |
468 | 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 */ |
597 | 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 */ |
469 | |
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470 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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471 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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472 | |
598 | |
473 | /* |
599 | /* |
474 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
600 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
475 | * keeps one reference. if you have a long-runing watcher you never unregister that |
601 | * keeps one reference. if you have a long-running watcher you never unregister that |
476 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
602 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
477 | */ |
603 | */ |
478 | void ev_ref (EV_P); |
604 | void ev_ref (EV_P); |
479 | void ev_unref (EV_P); |
605 | void ev_unref (EV_P); |
480 | |
606 | |
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|
607 | /* |
481 | /* convinience function, wait for a single event, without registering an event watcher */ |
608 | * convenience function, wait for a single event, without registering an event watcher |
482 | /* if timeout is < 0, do wait indefinitely */ |
609 | * if timeout is < 0, do wait indefinitely |
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610 | */ |
483 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
611 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
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612 | |
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613 | # if EV_FEATURE_API |
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614 | unsigned int ev_iteration (EV_P); /* number of loop iterations */ |
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615 | unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
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616 | void ev_verify (EV_P); /* abort if loop data corrupted */ |
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617 | |
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618 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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619 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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620 | |
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621 | /* advanced stuff for threading etc. support, see docs */ |
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622 | void ev_set_userdata (EV_P_ void *data); |
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623 | void *ev_userdata (EV_P); |
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624 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)); |
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625 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)); |
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626 | |
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627 | unsigned int ev_pending_count (EV_P); /* number of pending events, if any */ |
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628 | void ev_invoke_pending (EV_P); /* invoke all pending watchers */ |
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629 | |
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|
630 | /* |
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631 | * stop/start the timer handling. |
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632 | */ |
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633 | void ev_suspend (EV_P); |
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634 | void ev_resume (EV_P); |
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|
635 | #endif |
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636 | |
484 | #endif |
637 | #endif |
485 | |
638 | |
486 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
639 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
487 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
640 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
488 | #define ev_init(ev,cb_) do { \ |
641 | #define ev_init(ev,cb_) do { \ |
489 | ((ev_watcher *)(void *)(ev))->active = \ |
642 | ((ev_watcher *)(void *)(ev))->active = \ |
490 | ((ev_watcher *)(void *)(ev))->pending = \ |
643 | ((ev_watcher *)(void *)(ev))->pending = 0; \ |
491 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
644 | ev_set_priority ((ev), 0); \ |
492 | ev_set_cb ((ev), cb_); \ |
645 | ev_set_cb ((ev), cb_); \ |
493 | } while (0) |
646 | } while (0) |
494 | |
647 | |
495 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) |
648 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) |
496 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
649 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
497 | #define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
650 | #define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0) |
498 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
651 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
499 | #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) |
652 | #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) |
500 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
653 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
501 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
654 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
502 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
655 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
503 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
656 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
504 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
657 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
505 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
658 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
506 | #define ev_async_set(ev) do { (ev)->sent = 0; } while (0) |
659 | #define ev_async_set(ev) /* nop, yes, this is a serious in-joke */ |
507 | |
660 | |
508 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
661 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
509 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
662 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
510 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
663 | #define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) |
511 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
664 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
512 | #define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0) |
665 | #define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0) |
513 | #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0) |
666 | #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0) |
514 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
667 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
515 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
668 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
516 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
669 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
517 | #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) |
670 | #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) |
518 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
671 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
519 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
672 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
520 | |
673 | |
521 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
674 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
522 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
675 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
523 | |
676 | |
524 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
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|
525 | #define ev_cb(ev) (ev)->cb /* rw */ |
677 | #define ev_cb(ev) (ev)->cb /* rw */ |
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678 | |
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|
679 | #if EV_MINPRI == EV_MAXPRI |
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680 | # define ev_priority(ev) ((ev), EV_MINPRI) |
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|
681 | # define ev_set_priority(ev,pri) ((ev), (pri)) |
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|
682 | #else |
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|
683 | # define ev_priority(ev) (+(((ev_watcher *)(void *)(ev))->priority)) |
526 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
684 | # define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri) |
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|
685 | #endif |
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686 | |
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|
687 | #define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at) |
527 | |
688 | |
528 | #ifndef ev_set_cb |
689 | #ifndef ev_set_cb |
529 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
690 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
530 | #endif |
691 | #endif |
531 | |
692 | |
532 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
693 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
533 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
694 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
534 | #if EV_PROTOTYPES |
695 | #if EV_PROTOTYPES |
535 | |
696 | |
536 | /* feeds an event into a watcher as if the event actually occured */ |
697 | /* feeds an event into a watcher as if the event actually occured */ |
537 | /* accepts any ev_watcher type */ |
698 | /* accepts any ev_watcher type */ |
538 | void ev_feed_event (EV_P_ void *w, int revents); |
699 | void ev_feed_event (EV_P_ void *w, int revents); |
539 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
700 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
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|
701 | #if EV_SIGNAL_ENABLE |
540 | void ev_feed_signal_event (EV_P_ int signum); |
702 | void ev_feed_signal_event (EV_P_ int signum); |
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|
703 | #endif |
541 | void ev_invoke (EV_P_ void *w, int revents); |
704 | void ev_invoke (EV_P_ void *w, int revents); |
542 | int ev_clear_pending (EV_P_ void *w); |
705 | int ev_clear_pending (EV_P_ void *w); |
543 | |
706 | |
544 | void ev_io_start (EV_P_ ev_io *w); |
707 | void ev_io_start (EV_P_ ev_io *w); |
545 | void ev_io_stop (EV_P_ ev_io *w); |
708 | void ev_io_stop (EV_P_ ev_io *w); |
546 | |
709 | |
547 | void ev_timer_start (EV_P_ ev_timer *w); |
710 | void ev_timer_start (EV_P_ ev_timer *w); |
548 | void ev_timer_stop (EV_P_ ev_timer *w); |
711 | void ev_timer_stop (EV_P_ ev_timer *w); |
549 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
712 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
550 | void ev_timer_again (EV_P_ ev_timer *w); |
713 | void ev_timer_again (EV_P_ ev_timer *w); |
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|
714 | /* return remaining time */ |
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|
715 | ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w); |
551 | |
716 | |
552 | #if EV_PERIODIC_ENABLE |
717 | #if EV_PERIODIC_ENABLE |
553 | void ev_periodic_start (EV_P_ ev_periodic *w); |
718 | void ev_periodic_start (EV_P_ ev_periodic *w); |
554 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
719 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
555 | void ev_periodic_again (EV_P_ ev_periodic *w); |
720 | void ev_periodic_again (EV_P_ ev_periodic *w); |
556 | #endif |
721 | #endif |
557 | |
722 | |
558 | /* only supported in the default loop */ |
723 | /* only supported in the default loop */ |
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|
724 | #if EV_SIGNAL_ENABLE |
559 | void ev_signal_start (EV_P_ ev_signal *w); |
725 | void ev_signal_start (EV_P_ ev_signal *w); |
560 | void ev_signal_stop (EV_P_ ev_signal *w); |
726 | void ev_signal_stop (EV_P_ ev_signal *w); |
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|
727 | #endif |
561 | |
728 | |
562 | /* only supported in the default loop */ |
729 | /* only supported in the default loop */ |
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|
730 | # if EV_CHILD_ENABLE |
563 | void ev_child_start (EV_P_ ev_child *w); |
731 | void ev_child_start (EV_P_ ev_child *w); |
564 | void ev_child_stop (EV_P_ ev_child *w); |
732 | void ev_child_stop (EV_P_ ev_child *w); |
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|
733 | # endif |
565 | |
734 | |
566 | # if EV_STAT_ENABLE |
735 | # if EV_STAT_ENABLE |
567 | void ev_stat_start (EV_P_ ev_stat *w); |
736 | void ev_stat_start (EV_P_ ev_stat *w); |
568 | void ev_stat_stop (EV_P_ ev_stat *w); |
737 | void ev_stat_stop (EV_P_ ev_stat *w); |
569 | void ev_stat_stat (EV_P_ ev_stat *w); |
738 | void ev_stat_stat (EV_P_ ev_stat *w); |
… | |
… | |
572 | # if EV_IDLE_ENABLE |
741 | # if EV_IDLE_ENABLE |
573 | void ev_idle_start (EV_P_ ev_idle *w); |
742 | void ev_idle_start (EV_P_ ev_idle *w); |
574 | void ev_idle_stop (EV_P_ ev_idle *w); |
743 | void ev_idle_stop (EV_P_ ev_idle *w); |
575 | # endif |
744 | # endif |
576 | |
745 | |
|
|
746 | #if EV_PREPARE_ENABLE |
577 | void ev_prepare_start (EV_P_ ev_prepare *w); |
747 | void ev_prepare_start (EV_P_ ev_prepare *w); |
578 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
748 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
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|
749 | #endif |
579 | |
750 | |
|
|
751 | #if EV_CHECK_ENABLE |
580 | void ev_check_start (EV_P_ ev_check *w); |
752 | void ev_check_start (EV_P_ ev_check *w); |
581 | void ev_check_stop (EV_P_ ev_check *w); |
753 | void ev_check_stop (EV_P_ ev_check *w); |
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|
754 | #endif |
582 | |
755 | |
583 | # if EV_FORK_ENABLE |
756 | # if EV_FORK_ENABLE |
584 | void ev_fork_start (EV_P_ ev_fork *w); |
757 | void ev_fork_start (EV_P_ ev_fork *w); |
585 | void ev_fork_stop (EV_P_ ev_fork *w); |
758 | void ev_fork_stop (EV_P_ ev_fork *w); |
586 | # endif |
759 | # endif |
… | |
… | |
596 | void ev_async_start (EV_P_ ev_async *w); |
769 | void ev_async_start (EV_P_ ev_async *w); |
597 | void ev_async_stop (EV_P_ ev_async *w); |
770 | void ev_async_stop (EV_P_ ev_async *w); |
598 | void ev_async_send (EV_P_ ev_async *w); |
771 | void ev_async_send (EV_P_ ev_async *w); |
599 | # endif |
772 | # endif |
600 | |
773 | |
|
|
774 | #if EV_COMPAT3 |
|
|
775 | #define EVLOOP_NONBLOCK EVRUN_NOWAIT |
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|
776 | #define EVLOOP_ONESHOT EVRUN_ONCE |
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|
777 | #define EVUNLOOP_CANCEL EVBREAK_CANCEL |
|
|
778 | #define EVUNLOOP_ONE EVBREAK_ONE |
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|
779 | #define EVUNLOOP_ALL EVBREAK_ALL |
|
|
780 | #if EV_PROTOTYPES |
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781 | EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); } |
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782 | EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); } |
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783 | #if EV_FEATURE_API |
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784 | EV_INLINE void ev_loop_count (EV_P) { ev_iteration (EV_A); } |
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785 | EV_INLINE void ev_loop_depth (EV_P) { ev_depth (EV_A); } |
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786 | EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); } |
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787 | #endif |
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788 | #endif |
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789 | #else |
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790 | typedef struct ev_loop ev_loop; |
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791 | #endif |
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792 | |
601 | #endif |
793 | #endif |
602 | |
794 | |
603 | #ifdef __cplusplus |
795 | #ifdef __cplusplus |
604 | } |
796 | } |
605 | #endif |
797 | #endif |