hotspot/src/share/vm/logging/log.cpp
author rprotacio
Wed, 04 Nov 2015 17:18:59 -0500
changeset 33766 3290cae587f9
child 34252 59d76c40998a
permissions -rw-r--r--
8138916: Logging write function does not allow for long enough messages Summary: The unified logging framework's vwrite function is updated to allow strings longer than 512 characters, for the sake of messages of non-pre-determined length. Reviewed-by: coleenp, dsamersoff, mlarsson

/*
 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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#include "precompiled.hpp"

/////////////// Unit tests ///////////////

#ifndef PRODUCT

#include "logging/log.hpp"
#include "logging/logConfiguration.hpp"
#include "memory/resourceArea.hpp"

void Test_log_length() {
  remove("loglengthoutput.txt");

  // Write long message to output file
  MutexLocker ml(LogConfiguration_lock);
  LogConfiguration::parse_log_arguments("loglengthoutput.txt", "logging=develop",
    NULL, NULL, NULL);
  ResourceMark rm;
  outputStream* logstream = LogHandle(logging)::develop_stream();
  logstream->print_cr("01:1234567890-"
                      "02:1234567890-"
                      "03:1234567890-"
                      "04:1234567890-"
                      "05:1234567890-"
                      "06:1234567890-"
                      "07:1234567890-"
                      "08:1234567890-"
                      "09:1234567890-"
                      "10:1234567890-"
                      "11:1234567890-"
                      "12:1234567890-"
                      "13:1234567890-"
                      "14:1234567890-"
                      "15:1234567890-"
                      "16:1234567890-"
                      "17:1234567890-"
                      "18:1234567890-"
                      "19:1234567890-"
                      "20:1234567890-"
                      "21:1234567890-"
                      "22:1234567890-"
                      "23:1234567890-"
                      "24:1234567890-"
                      "25:1234567890-"
                      "26:1234567890-"
                      "27:1234567890-"
                      "28:1234567890-"
                      "29:1234567890-"
                      "30:1234567890-"
                      "31:1234567890-"
                      "32:1234567890-"
                      "33:1234567890-"
                      "34:1234567890-"
                      "35:1234567890-"
                      "36:1234567890-"
                      "37:1234567890-");

  // Look for end of message in output file
  FILE* fp;
  fp = fopen("loglengthoutput.txt", "r");
  assert (fp, "File read error");
  char output[600];
  if (fgets(output, 600, fp) != NULL) {
    assert(strstr(output, "37:1234567890-"), "logging print size error");
  }
  fclose(fp);
  remove("loglengthoutput.txt");
}
#endif // PRODUCT