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src/hotspot/os/aix/perfMemory_aix.cpp

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   1 /*
   2  * Copyright (c) 2001, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2012, 2018 SAP SE. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.

 668 
 669         // don't follow symbolic links for the file
 670         RESTARTABLE(::lstat(filename, &statbuf), result);
 671         if (result == OS_ERR) {
 672            FREE_C_HEAP_ARRAY(char, filename);
 673            continue;
 674         }
 675 
 676         // skip over files that are not regular files.
 677         if (!S_ISREG(statbuf.st_mode)) {
 678           FREE_C_HEAP_ARRAY(char, filename);
 679           continue;
 680         }
 681 
 682         // compare and save filename with latest creation time
 683         if (statbuf.st_size > 0 && statbuf.st_ctime > oldest_ctime) {
 684 
 685           if (statbuf.st_ctime > oldest_ctime) {
 686             char* user = strchr(dentry->d_name, '_') + 1;
 687 
 688             if (oldest_user != NULL) FREE_C_HEAP_ARRAY(char, oldest_user);
 689             oldest_user = NEW_C_HEAP_ARRAY(char, strlen(user)+1, mtInternal);
 690 
 691             strcpy(oldest_user, user);
 692             oldest_ctime = statbuf.st_ctime;
 693           }
 694         }
 695 
 696         FREE_C_HEAP_ARRAY(char, filename);
 697       }
 698     }
 699     os::closedir(subdirp);
 700     FREE_C_HEAP_ARRAY(char, usrdir_name);
 701   }
 702   os::closedir(tmpdirp);
 703 
 704   return(oldest_user);
 705 }
 706 
 707 // return the name of the user that owns the JVM indicated by the given vmid.
 708 //

   1 /*
   2  * Copyright (c) 2001, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2012, 2018 SAP SE. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.

 668 
 669         // don't follow symbolic links for the file
 670         RESTARTABLE(::lstat(filename, &statbuf), result);
 671         if (result == OS_ERR) {
 672            FREE_C_HEAP_ARRAY(char, filename);
 673            continue;
 674         }
 675 
 676         // skip over files that are not regular files.
 677         if (!S_ISREG(statbuf.st_mode)) {
 678           FREE_C_HEAP_ARRAY(char, filename);
 679           continue;
 680         }
 681 
 682         // compare and save filename with latest creation time
 683         if (statbuf.st_size > 0 && statbuf.st_ctime > oldest_ctime) {
 684 
 685           if (statbuf.st_ctime > oldest_ctime) {
 686             char* user = strchr(dentry->d_name, '_') + 1;
 687 
 688             FREE_C_HEAP_ARRAY(char, oldest_user);
 689             oldest_user = NEW_C_HEAP_ARRAY(char, strlen(user)+1, mtInternal);
 690 
 691             strcpy(oldest_user, user);
 692             oldest_ctime = statbuf.st_ctime;
 693           }
 694         }
 695 
 696         FREE_C_HEAP_ARRAY(char, filename);
 697       }
 698     }
 699     os::closedir(subdirp);
 700     FREE_C_HEAP_ARRAY(char, usrdir_name);
 701   }
 702   os::closedir(tmpdirp);
 703 
 704   return(oldest_user);
 705 }
 706 
 707 // return the name of the user that owns the JVM indicated by the given vmid.
 708 //
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