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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _TRACE_H
#define _TRACE_H
#include <cstdarg>
#include <string>
#include <vector>
#include <stack>
#include <pthread.h>
#ifndef MAX_MSG_LEN
#define MAX_MSG_LEN 2048
#endif
/*
* @memo Tracing, Logging, and debugging facility
* @field ONE_FIELD_DESCRIPTION
*
* @doc The Trace class provides stack tracing, and basic
* logging/debugging facilities.
*/
class Trace {
public:
Trace(std::string myRoutine);
~Trace();
std::string label() {
return (routine);
}
void noMemory() {
message(1, "Out of memory");
}
void debug(const char *fmt, ...) {
char msg[MAX_MSG_LEN];
va_list ap;
va_start(ap, fmt);
vsnprintf(msg, sizeof (msg), fmt, ap);
message(LOG_DEBUG, msg);
va_end(ap);
}
void genericIOError(const char *fmt, ...) {
char msg[MAX_MSG_LEN];
va_list ap;
va_start(ap, fmt);
vsnprintf(msg, sizeof (msg), fmt, ap);
message(IO_ERROR, msg);
va_end(ap);
}
void internalError(const char *fmt, ...) {
char msg[MAX_MSG_LEN];
va_list ap;
va_start(ap, fmt);
vsnprintf(msg, sizeof (msg), fmt, ap);
message(INTERNAL_ERROR, msg);
va_end(ap);
}
void userError(const char *fmt, ...) {
char msg[MAX_MSG_LEN];
va_list ap;
va_start(ap, fmt);
vsnprintf(msg, sizeof (msg), fmt, ap);
message(USER_ERROR, msg);
va_end(ap);
}
void stackTrace();
private:
std::string routine;
pthread_t tid;
static const int INTERNAL_ERROR = 3;
static const int STACK_TRACE = 4;
static const int IO_ERROR = 5;
static const int USER_ERROR = 6;
static const int LOG_DEBUG = 7;
void message(int priority, const char *msg);
static std::vector<std::vector<Trace *> > stacks;
static std::vector<std::string> indent;
};
#endif /* _TRACE_H */
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