1 /*

     2  * Copyright (c) 2015, 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.

     8  *

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

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

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

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

    13  * accompanied this code).

    14  *

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

    16  * 2 along with this work; if not, write to the Free Software Foundation,

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

    18  *

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

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

    21  * questions.

    22  *

    23  */

    24 #include "precompiled.hpp"

    25 #include "logging/logDecorators.hpp"

    26 #include "logging/logDecorations.hpp"

    27 #include "logging/logFileStreamOutput.hpp"

    28 #include "memory/allocation.inline.hpp"

    29 

    30 LogStdoutOutput LogStdoutOutput::_instance;

    31 LogStderrOutput LogStderrOutput::_instance;

    32 

    33 int LogFileStreamOutput::write(const LogDecorations& decorations, const char* msg) {

    34   char decoration_buf[LogDecorations::DecorationsBufferSize];

    35   char* position = decoration_buf;

    36   int total_written = 0;

    37 

    38   for (uint i = 0; i < LogDecorators::Count; i++) {

    39     LogDecorators::Decorator decorator = static_cast<LogDecorators::Decorator>(i);

    40     if (!_decorators.is_decorator(decorator)) {

    41       continue;

    42     }

    43     int written = jio_snprintf(position, sizeof(decoration_buf) - total_written, "[%-*s]",

    44                                _decorator_padding[decorator],

    45                                decorations.decoration(decorator));

    46     if (written <= 0) {

    47       return -1;

    48     } else if (static_cast<size_t>(written - 2) > _decorator_padding[decorator]) {

    49       _decorator_padding[decorator] = written - 2;

    50     }

    51     position += written;

    52     total_written += written;

    53   }

    54 

    55   if (total_written == 0) {

    56     total_written = jio_fprintf(_stream, "%s\n", msg);

    57   } else {

    58     total_written = jio_fprintf(_stream, "%s %s\n", decoration_buf, msg);

    59   }

    60   fflush(_stream);

    61   return total_written;

    62 }