lib/syslog-null.c

   1 /*
   2  * Copyright (c) 2015, 2016 Nicira, Inc.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at:
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 #include "syslog-null.h"
  17
  18 #include <config.h>
  19
  20 #include "compiler.h"
  21 #include "syslog-provider.h"
  22 #include "util.h"
  23
  24 static void syslog_null_open(struct syslogger *this, int facility);
  25 static void syslog_null_log(struct syslogger *this, int pri, const char *msg);
  26
  27 static struct syslog_class syslog_null_class = {
  28     syslog_null_open,
  29     syslog_null_log,
  30 };
  31
  32 struct syslog_null {
  33     struct syslogger parent;
  34 };
  35
  36 /* This function  creates object that delegate all logging to null's
  37  * syslog implementation. */
  38 struct syslogger *
  39 syslog_null_create(void)
  40 {
  41     struct syslog_null *this = xmalloc(sizeof *this);
  42
  43     this->parent.class = &syslog_null_class;
  44     this->parent.prefix = "";
  45
  46     return &this->parent;
  47 }
  48
  49 static void
  50 syslog_null_open(struct syslogger *this OVS_UNUSED, int facility OVS_UNUSED)
  51 {
  52     /* Nothing to do. */
  53 }
  54
  55 static void
  56 syslog_null_log(struct syslogger *this OVS_UNUSED, int pri OVS_UNUSED,
  57                 const char *msg OVS_UNUSED)
  58 {
  59     /* Nothing to do. */
  60 }