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/*
* Copyright (c) 2015 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SYSLOG_PROVIDER_H
#define SYSLOG_PROVIDER_H 1
/* Open vSwitch interface to syslog daemon's interface.
*
* 'syslogger' is the base class that provides abstraction. */
struct syslogger {
const struct syslog_class *class; /* Virtual functions for concrete
* syslogger implementations. */
const char *prefix; /* Prefix that is enforced by concrete
* syslogger implementation. Used
* in vlog/list-pattern function. */
};
/* Each concrete syslogger implementation must define it's own table with
* following functions. These functions must never call any other VLOG_
* function to prevent deadlocks. */
struct syslog_class {
/* openlog() function should be called before syslog() function. It
* should initialize all system resources needed to perform logging. */
void (*openlog)(struct syslogger *this, int facility);
/* syslog() function sends message 'msg' to syslog daemon. */
void (*syslog)(struct syslogger *this, int pri, const char *msg);
};
static inline const char *
syslog_get_prefix(struct syslogger *this)
{
return this->prefix;
}
#endif /* syslog-provider.h */
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