1 /*

     2  * Copyright (c) 2003, 2005, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 #include <stdarg.h>

    27 #include <stdio.h>

    28 #include <stdlib.h>

    29 #include "Trace.h"

    30 

    31 static int j2dTraceLevel = J2D_TRACE_INVALID;

    32 static FILE *j2dTraceFile = NULL;

    33 

    34 JNIEXPORT void JNICALL

    35 J2dTraceImpl(int level, jboolean cr, const char *string, ...)

    36 {

    37     va_list args;

    38     if (j2dTraceLevel < J2D_TRACE_OFF) {

    39         J2dTraceInit();

    40     }

    41     if (level <= j2dTraceLevel) {

    42         if (cr) {

    43             switch (level) {

    44             case J2D_TRACE_ERROR:

    45                 fprintf(j2dTraceFile, "[E] ");

    46                 break;

    47             case J2D_TRACE_WARNING:

    48                 fprintf(j2dTraceFile, "[W] ");

    49                 break;

    50             case J2D_TRACE_INFO:

    51                 fprintf(j2dTraceFile, "[I] ");

    52                 break;

    53             case J2D_TRACE_VERBOSE:

    54                 fprintf(j2dTraceFile, "[V] ");

    55                 break;

    56             case J2D_TRACE_VERBOSE2:

    57                 fprintf(j2dTraceFile, "[X] ");

    58                 break;

    59             default:

    60                 break;

    61             }

    62         }

    63 

    64         va_start(args, string);

    65         vfprintf(j2dTraceFile, string, args);

    66         va_end(args);

    67 

    68         if (cr) {

    69             fprintf(j2dTraceFile, "\n");

    70         }

    71         fflush(j2dTraceFile);

    72     }

    73 }

    74 

    75 JNIEXPORT void JNICALL

    76 J2dTraceInit()

    77 {

    78     char *j2dTraceLevelString = getenv("J2D_TRACE_LEVEL");

    79     char *j2dTraceFileName;

    80     j2dTraceLevel = J2D_TRACE_OFF;

    81     if (j2dTraceLevelString) {

    82         int traceLevelTmp = -1;

    83         int args = sscanf(j2dTraceLevelString, "%d", &traceLevelTmp);

    84         if (args > 0 &&

    85             traceLevelTmp > J2D_TRACE_INVALID &&

    86             traceLevelTmp < J2D_TRACE_MAX)

    87         {

    88             j2dTraceLevel = traceLevelTmp;

    89         }

    90     }

    91     j2dTraceFileName = getenv("J2D_TRACE_FILE");

    92     if (j2dTraceFileName) {

    93         j2dTraceFile = fopen(j2dTraceFileName, "w");

    94         if (!j2dTraceFile) {

    95             printf("[E]: Error opening trace file %s\n", j2dTraceFileName);

    96         }

    97     }

    98     if (!j2dTraceFile) {

    99         j2dTraceFile = stdout;

   100     }

   101 }