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comparison src/os/unix/ngx_posix_init.c @ 226:b0c1e21e68db

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nginx-0.0.1-2004-01-14-00:33:59 import
author Igor Sysoev <igor@sysoev.ru>
date Tue, 13 Jan 2004 21:33:59 +0000
parents 2e9a8a14a0cf
children 86e473b5641e
comparison
equal deleted inserted replaced
225:2e9a8a14a0cf 226:b0c1e21e68db
39 ngx_signal_handler }, 39 ngx_signal_handler },
40 40
41 { ngx_signal_value(NGX_CHANGEBIN_SIGNAL), 41 { ngx_signal_value(NGX_CHANGEBIN_SIGNAL),
42 "SIG" ngx_value(NGX_CHANGEBIN_SIGNAL), 42 "SIG" ngx_value(NGX_CHANGEBIN_SIGNAL),
43 ngx_signal_handler }, 43 ngx_signal_handler },
44
45 { SIGINT, "SIGINT", ngx_signal_handler },
44 46
45 { SIGCHLD, "SIGCHLD", ngx_signal_handler }, 47 { SIGCHLD, "SIGCHLD", ngx_signal_handler },
46 48
47 { SIGPIPE, "SIGPIPE, SIG_IGN", SIG_IGN }, 49 { SIGPIPE, "SIGPIPE, SIG_IGN", SIG_IGN },
48 50
91 93
92 void ngx_signal_handler(int signo) 94 void ngx_signal_handler(int signo)
93 { 95 {
94 char *action; 96 char *action;
95 struct timeval tv; 97 struct timeval tv;
98 ngx_int_t ignore;
96 ngx_err_t err; 99 ngx_err_t err;
97 ngx_signal_t *sig; 100 ngx_signal_t *sig;
98 101
99 ngx_signal = 1; 102 ngx_signal = 1;
103 ignore = 0;
100 104
101 err = ngx_errno; 105 err = ngx_errno;
102 106
103 for (sig = signals; sig->signo != 0; sig++) { 107 for (sig = signals; sig->signo != 0; sig++) {
104 if (sig->signo == signo) { 108 if (sig->signo == signo) {
136 ngx_reconfigure = 1; 140 ngx_reconfigure = 1;
137 action = ", reconfiguring"; 141 action = ", reconfiguring";
138 break; 142 break;
139 143
140 case ngx_signal_value(NGX_REOPEN_SIGNAL): 144 case ngx_signal_value(NGX_REOPEN_SIGNAL):
141 ngx_reopen = 1; 145 if (ngx_noaccept) {
142 action = ", reopen logs"; 146 action = ", ignoring";
143 break; 147
148 } else {
149 ngx_reopen = 1;
150 action = ", reopen logs";
151 break;
152 }
144 153
145 case ngx_signal_value(NGX_CHANGEBIN_SIGNAL): 154 case ngx_signal_value(NGX_CHANGEBIN_SIGNAL):
155 if ((ngx_inherited && getppid() > 1)
156 || (!ngx_inherited && ngx_new_binary > 0))
157 {
158 /*
159 * Ignore the signal in the new binary if its parent is
160 * not the init process, i.e. the old binary's process
161 * is still running. Or ingore the signal in the old binary's
162 * process if the new binary's process is already running.
163 */
164
165 action = ", ignoring";
166 ignore = 1;
167 break;
168 }
169
146 ngx_change_binary = 1; 170 ngx_change_binary = 1;
147 action = ", changing binary"; 171 action = ", changing binary";
148 break; 172 break;
149 173
150 case SIGCHLD: 174 case SIGCHLD:
187 } 211 }
188 212
189 ngx_log_error(NGX_LOG_INFO, ngx_cycle->log, 0, 213 ngx_log_error(NGX_LOG_INFO, ngx_cycle->log, 0,
190 "signal %d (%s) received%s", signo, sig->signame, action); 214 "signal %d (%s) received%s", signo, sig->signame, action);
191 215
216 if (ignore) {
217 ngx_log_error(NGX_LOG_CRIT, ngx_cycle->log, 0,
218 "the changing binary signal is ignored: "
219 "you should shutdown or terminate "
220 "before either old or new binary's process");
221 }
222
192 if (signo == SIGCHLD) { 223 if (signo == SIGCHLD) {
193 ngx_process_get_status(); 224 ngx_process_get_status();
194 } 225 }
195 226
196 ngx_set_errno(err); 227 ngx_set_errno(err);