libsvm/common/debug.c

	debug.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (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 2003 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>

/* The following defines are for tracing output (from libsmpicommon) */

#define LOG     0x1 /* write message to log file */
#define SCR     0x2 /* write message to the screen */
#define LOGSCR      LOG|SCR /* write message to the log and screen */
#define LEVEL0      0x0001  /* message level 0 */
#define LEVEL1      0x0002  /* message level 1 */
#define LEVEL2      0x0004  /* message level 2 */
#define LEVEL3      0x0010  /* message level 3 */

extern int get_trace_level(void);
extern int write_status(unsigned char, unsigned int, char *, ...);

const char libsvm_str[] = "LIB_SVM: ";
const int libsvm_len = sizeof (libsvm_str);

/*PRINTFLIKE1*/
void
debug_printf(char *fmt, ...)
{
    va_list ap;
    char *cp;
    char *buf;

    if (get_trace_level() > 5) {
        if ((buf = calloc(PATH_MAX, sizeof (char))) == NULL)
            return;
        (void) strcpy(buf, libsvm_str);
        /*
         * libsvm_len - 1 is because the length includes NULL
         */

        cp = buf + (libsvm_len - 1);
        va_start(ap, fmt);
        if (vsnprintf(cp, (PATH_MAX - (libsvm_len - 1)),
                            fmt, ap) >= 0) {
            write_status(LOGSCR, LEVEL0, buf);
        }
        free(buf);
        va_end(ap);
    }
}