src/server/daemon/event_solaris.c

Sun, 02 Jun 2024 16:02:36 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sun, 02 Jun 2024 16:02:36 +0200
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parent 531
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child 537
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permissions
-rw-r--r--

stop cgi read-event processing if an error occured

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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 #include <stdio.h>
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30 #include <stdlib.h>
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31 #include <atomic.h>
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32
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33 #include "../util/io.h"
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34
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35 #include "event_solaris.h"
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36
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37 #include "httprequest.h"
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38
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39 EVHandler* evhandler_create(EventHandlerConfig *cfg) {
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40 EVHandler *ev = malloc(sizeof(EVHandler));
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41 ev->current = 0;
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42 ev->instances = calloc(cfg->nthreads, sizeof(void*));
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43 ev->numins = cfg->nthreads;
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44
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45 for(int i=0;i<cfg->nthreads;i++) {
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46 EventHandler *handler = malloc(sizeof(EventHandler));
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47 ev->instances[i] = handler;
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48
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49 handler->port = port_create();
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50 if(handler->port < 0) {
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51 log_ereport(LOG_FAILURE, "evhandler_create: port_create: %s", strerror(errno));
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52 return NULL;
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53 }
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54
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55 SYS_THREAD t = systhread_start(
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56 0,
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57 0,
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58 (thrstartfunc)ev_handle_events,
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59 handler);
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60 systhread_detach(t);
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61 }
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62
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63 return ev;
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64 }
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65
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66
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67 void ev_handle_events(EventHandler *ev) {
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68 port_event_t events[EV_MAX_EVENTS];
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69 Event *finished[EV_MAX_EVENTS];
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70 struct timespec timeout;
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71 timeout.tv_nsec = 0;
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72 timeout.tv_sec = 600;
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74 for(;;) {
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75 // wait for events
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76 uint_t nev = 1;
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77 int ret = port_getn(ev->port, events, EV_MAX_EVENTS, &nev, &timeout);
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78 if(ret == -1) {
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79 // TODO: check for error
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80 perror("port_getn");
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81 continue;
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82 }
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83
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84 int numfinished = 0;
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85 ev->numret = 0;
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86 for(int i=0;i<nev;i++) {
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87 Event *event = events[i].portev_user;
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88 if(events[i].portev_source == PORT_SOURCE_AIO) {
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89 aiocb_t *aiocb = (aiocb_t*)events[i].portev_object;
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90 if(event) {
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91 aiocb_s *aio = (aiocb_s*)event->object;
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92 aio->result = aiocb->aio_resultp.aio_return;
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93 aio->result_errno = aiocb->aio_resultp.aio_errno;
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94 if(event->fn) {
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95 if(!event->fn(ev, event) && event->finish) {
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96 finished[numfinished++] = event;
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97 }
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98 }
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99 }
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100 free(aiocb);
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101 } else {
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102 if(event->fn) {
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103 if(event->fn(ev, event)) {
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104 /*
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105 * on solaris we have to reassociate the fd after
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106 * each event
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107 * we do this if the event function returns 1
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108 */
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109 if(port_associate(
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110 ev->port,
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111 PORT_SOURCE_FD,
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112 (uintptr_t)event->object,
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113 ev_convert2sys_events(event->events),
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114 event))
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115 {
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116 perror("port_associate");
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117 }
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118 } else if(event->finish) {
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119 event->finish(ev, event);
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120 }
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121 }
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122 }
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123 }
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124 // call event finish handlers
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125 for(int i=0;i<numfinished;i++) {
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126 Event *event = finished[i];
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127 finished[i]->finish(ev, event);
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128 }
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129 // execute return calls
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130 for(int i=0;i<ev->numret;i++) {
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131 EVReturn ret = ev->fnreturn[i];
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132 nsapi_saf_return(ret.sn, ret.rq, ret.ret);
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133 }
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134 }
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135 }
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136
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137 int ev_convert2sys_events(int events) {
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138 int e = 0;
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139 if((events & EVENT_POLLIN) == EVENT_POLLIN) {
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140 e |= POLLIN;
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141 }
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142 if((events & EVENT_POLLOUT) == EVENT_POLLOUT) {
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143 e |= POLLOUT;
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144 }
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145 return e;
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146 }
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147
159
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148
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149 int ev_pollin(EventHandler *h, int fd, Event *event) {
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150 event->object = (intptr_t)fd;
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151 event->events = EVENT_POLLIN;
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152 return port_associate(
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153 h->port,
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154 PORT_SOURCE_FD,
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155 (uintptr_t)fd,
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156 POLLIN,
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157 event);
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158 }
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159
159
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160 int ev_pollout(EventHandler *h, int fd, Event *event) {
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161 event->object = (intptr_t)fd;
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162 event->events = EVENT_POLLOUT;
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163 return port_associate(
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164 h->port,
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165 PORT_SOURCE_FD,
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166 (uintptr_t)fd,
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167 POLLOUT,
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168 event);
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169 }
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170
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171 int ev_remove_poll(EventHandler *h, int fd) {
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172 return port_dissociate(h->port, PORT_SOURCE_FD, (uintptr_t)fd);
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173 }
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174
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175 int event_send(EventHandler *h, Event *event) {
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176 event->object = 0;
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177 event->events = 0;
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178 return port_send(h->port, 0, event);
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179 }
172
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180
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181 static int ev_aio(int fd, aiocb_s *cb, WSBool read) {
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182 EventHandler *ev = cb->evhandler;
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183 if(!ev) {
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184 return -1;
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185 }
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186
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187 aiocb_t *aiocb = malloc(sizeof(aiocb_t));
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188 if(!aiocb) {
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189 return -1;
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190 }
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191 ZERO(aiocb, sizeof(aiocb_t));
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192
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193 aiocb->aio_fildes = fd;
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194 aiocb->aio_buf = cb->buf;
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195 aiocb->aio_nbytes = cb->nbytes;
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196 aiocb->aio_offset = cb->offset;
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197
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198 port_notify_t *portnotify = malloc(sizeof(port_notify_t));
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199 if(!portnotify) {
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200 free(aiocb);
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201 return -1;
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202 }
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203 portnotify->portnfy_port = ev->port;
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204 portnotify->portnfy_user = cb->event;
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205 aiocb->aio_sigevent.sigev_notify = SIGEV_PORT;
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206 aiocb->aio_sigevent.sigev_value.sival_ptr = portnotify;
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207
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208 if(read) {
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209 return aio_read(aiocb);
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210 } else {
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211 return aio_write(aiocb);
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212 }
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213 }
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214
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215 int ev_aioread(int fd, aiocb_s *cb) {
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216 return ev_aio(fd, cb, TRUE);
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217 }
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218
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219 int ev_aiowrite(int fd, aiocb_s *cb) {
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220 return ev_aio(fd, cb, FALSE);
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221 }
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222
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223
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224 int event_pollin(EventHandler *ev, SYS_NETFD fd, Event *event) {
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225 return ((IOStream*)fd)->poll(fd, ev, IO_POLL_IN, event);
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226 }
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227
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228 int event_pollout(EventHandler *ev, SYS_NETFD fd, Event *event) {
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229 return ((IOStream*)fd)->poll(fd, ev, IO_POLL_OUT, event);
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230 }
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231
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232 int event_removepoll(EventHandler *ev, SYS_NETFD fd) {
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233 return ((IOStream*)fd)->poll(fd, ev, IO_POLL_NONE, NULL);
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234 }
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235
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236 void ev_saf_return(EventHandler *h, Session *sn, Request *rq, int ret) {
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237 h->fnreturn[h->numret++] = (EVReturn){ sn, rq, ret };
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238 }

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