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1 | /* |
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2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
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3 | * |
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4 | * Copyright 2013 Olaf Wintermann. All rights reserved. |
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5 | * |
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6 | * Redistribution and use in source and binary forms, with or without |
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7 | * modification, are permitted provided that the following conditions are met: |
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8 | * |
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9 | * 1. Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * |
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12 | * 2. Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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26 | * POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |
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29 | #ifndef EVENT_H |
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30 | #define EVENT_H |
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31 | |
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32 | #include "../public/nsapi.h" |
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33 | #include <cx/string.h> |
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34 | |
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35 | #ifdef __cplusplus |
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36 | extern "C" { |
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37 | #endif |
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38 | |
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39 | #define EV_MAX_EVENTS 32 |
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40 | |
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41 | typedef struct EVHandler { |
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42 | EventHandler **instances; |
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43 | uint32_t numins; |
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44 | uint32_t current; |
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45 | } EVHandler; |
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46 | |
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47 | typedef struct event_handler_conf { |
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48 | cxstring name; |
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49 | int nthreads; |
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50 | int isdefault; |
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51 | } EventHandlerConfig; |
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52 | |
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53 | typedef struct EVReturn { |
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54 | Session *sn; |
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55 | Request *rq; |
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56 | int ret; |
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57 | } EVReturn; |
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58 | |
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59 | typedef struct EVWatchList EVWatchList; |
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60 | typedef void(*evwatchlist_destroyfunc)(EventHandler *h, EVWatchList *item); |
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61 | |
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62 | struct EVWatchList { |
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63 | time_t created; |
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64 | time_t expire; |
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65 | evwatchlist_destroyfunc destroy; |
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66 | void *data; |
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67 | int intdata; |
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68 | EVWatchList *prev; |
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69 | EVWatchList *next; |
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70 | }; |
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71 | |
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72 | |
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73 | typedef struct EventHandler { |
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74 | /* |
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75 | * return call list |
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76 | */ |
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77 | EVReturn fnreturn[EV_MAX_EVENTS]; |
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78 | /* |
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79 | * number of fnreturn entries |
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80 | */ |
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81 | int numret; |
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82 | |
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83 | EVWatchList *watchlist_begin; |
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84 | EVWatchList *watchlist_end; |
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85 | } EventHandler; |
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86 | |
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87 | |
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88 | |
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89 | int create_event_handler(EventHandlerConfig *cfg); |
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90 | |
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91 | int check_event_handler_cfg(); |
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92 | |
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93 | EVHandler* get_default_event_handler(); |
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94 | |
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95 | EVHandler* get_event_handler(const char *name); |
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96 | |
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97 | EventHandler* ev_instance(EVHandler *ev); |
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99 | void watchlist_add(EVWatchList **begin, EVWatchList **end, EVWatchList *elm); |
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100 | void watchlist_remove(EVWatchList **begin, EVWatchList **end, EVWatchList *elm); |
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101 | |
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102 | void watchlist_check(EventHandler *h, time_t t); |
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103 | |
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104 | /* implementation in event_$platform */ |
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105 | EVHandler* evhandler_create(EventHandlerConfig *cfg); |
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106 | |
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107 | int ev_pollin(EventHandler *h, int fd, Event *event); |
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108 | int ev_pollout(EventHandler *h, int fd, Event *event); |
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109 | int ev_remove_poll(EventHandler *h, int fd); |
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110 | int ev_send(EventHandler *h, Event *event); |
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111 | |
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112 | int ev_aioread(int fd, aiocb_s *cb); |
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113 | int ev_aiowrite(int fd, aiocb_s *cb); |
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114 | |
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115 | int ev_free_event(EventHandler *h, Event *event); |
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117 | void ev_saf_return(EventHandler *h, Session *sn, Request *rq, int ret); |
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118 | |
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119 | void ev_watchlist_add(EventHandler *h, EVWatchList *elm); |
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120 | void ev_watchlist_remove(EventHandler *h, EVWatchList *elm); |
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121 | |
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122 | |
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123 | #ifdef __cplusplus |
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124 | } |
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125 | #endif |
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126 | |
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127 | #endif /* EVENT_H */ |
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128 |