4 Copyright (C) Andrew Tridgell 2008
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, see <http://www.gnu.org/licenses/>.
21 #include "lib/events/events.h"
22 #include "../include/ctdb_private.h"
23 #include "system/syslog.h"
24 #include "system/time.h"
25 #include "system/filesys.h"
27 struct ctdb_log_state {
35 /* we need this global to eep the DEBUG() syntax */
36 static struct ctdb_log_state *log_state;
39 syslog logging function
41 static void ctdb_syslog_log(const char *format, va_list ap)
43 int level = LOG_DEBUG;
44 switch (this_log_level) {
70 vsyslog(level, format, ap);
75 log file logging function
77 static void ctdb_logfile_log(const char *format, va_list ap)
85 vasprintf(&s, format, ap);
87 t = timeval_current();
88 tm = localtime(&t.tv_sec);
90 strftime(tbuf,sizeof(tbuf)-1,"%Y/%m/%d %H:%M:%S", tm);
92 asprintf(&s2, "%s.%06u [%5u]: %s",
93 tbuf, (unsigned)t.tv_usec, (unsigned)getpid(), s);
96 write(log_state->fd, s2, strlen(s2));
102 choose the logfile location
104 int ctdb_set_logfile(struct ctdb_context *ctdb, const char *logfile, bool use_syslog)
106 ctdb->log = talloc_zero(ctdb, struct ctdb_log_state);
108 log_state = ctdb->log;
111 do_debug_v = ctdb_syslog_log;
112 ctdb->log->use_syslog = true;
113 } else if (logfile == NULL || strcmp(logfile, "-") == 0) {
114 do_debug_v = ctdb_logfile_log;
116 /* also catch stderr of subcommands to stdout */
119 do_debug_v = ctdb_logfile_log;
120 ctdb->log->logfile = talloc_strdup(ctdb, logfile);
122 ctdb->log->fd = open(logfile, O_WRONLY|O_APPEND|O_CREAT, 0666);
123 if (ctdb->log->fd == -1) {
124 printf("Failed to open logfile %s\n", ctdb->logfile);
135 called when log data comes in from a child process
137 static void ctdb_log_handler(struct event_context *ev, struct fd_event *fde,
138 uint16_t flags, void *private)
140 struct ctdb_context *ctdb = talloc_get_type(private, struct ctdb_context);
144 if (!(flags & EVENT_FD_READ)) {
148 n1 = read(ctdb->log->pfd, &ctdb->log->buf[ctdb->log->buf_used],
149 sizeof(ctdb->log->buf) - ctdb->log->buf_used);
151 ctdb->log->buf_used += n1;
154 p = memchr(ctdb->log->buf, '\n', ctdb->log->buf_used);
156 if (ctdb->log->buf_used == sizeof(ctdb->log->buf)) {
158 (int)ctdb->log->buf_used, (int)ctdb->log->buf_used, ctdb->log->buf);
159 ctdb->log->buf_used = 0;
164 n1 = (p - ctdb->log->buf)+1;
166 /* swallow \r from child processes */
167 if (n2 > 0 && ctdb->log->buf[n2-1] == '\r') {
170 do_debug("%*.*s\n", n2, n2, ctdb->log->buf);
171 memmove(ctdb->log->buf, p+1, sizeof(ctdb->log->buf) - n1);
172 ctdb->log->buf_used -= n1;
178 setup for logging of child process stdout
180 int ctdb_set_child_logging(struct ctdb_context *ctdb)
184 if (ctdb->log->fd == 1) {
185 /* not needed for stdout logging */
189 /* setup a pipe to catch IO from subprocesses */
191 DEBUG(DEBUG_ERR,(__location__ " Failed to setup for child logging pipe\n"));
195 event_add_fd(ctdb->ev, ctdb, p[0], EVENT_FD_READ,
196 ctdb_log_handler, ctdb);
197 set_close_on_exec(p[0]);
198 ctdb->log->pfd = p[0];
206 /* also catch stderr of subcommands to the log */