< prev index next >

src/jdk.attach/linux/native/libattach/VirtualMachineImpl.c

Print this page


   1 /*
   2  * Copyright (c) 2005, 2014, 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


  31 #include <stdlib.h>
  32 #include <string.h>
  33 #include <errno.h>
  34 #include <unistd.h>
  35 #include <signal.h>
  36 #include <dirent.h>
  37 #include <ctype.h>
  38 #include <sys/types.h>
  39 #include <sys/types.h>
  40 #include <sys/socket.h>
  41 #include <sys/stat.h>
  42 #include <sys/un.h>
  43 
  44 #include "sun_tools_attach_VirtualMachineImpl.h"
  45 
  46 #define RESTARTABLE(_cmd, _result) do { \
  47   do { \
  48     _result = _cmd; \
  49   } while((_result == -1) && (errno == EINTR)); \
  50 } while(0)





  51 
  52 /*
  53  * Defines a callback that is invoked for each process
  54  */
  55 typedef void (*ProcessCallback)(const pid_t pid, void* user_data);
  56 
  57 /*
  58  * Invokes the callback function for each process
  59  */
  60 static void forEachProcess(ProcessCallback f, void* user_data) {
  61     DIR* dir;
  62     struct dirent* ptr;
  63 
  64     /*
  65      * To locate the children we scan /proc looking for files that have a
  66      * position integer as a filename.
  67      */
  68     if ((dir = opendir("/proc")) == NULL) {
  69         return;
  70     }


   1 /*
   2  * Copyright (c) 2005, 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.  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


  31 #include <stdlib.h>
  32 #include <string.h>
  33 #include <errno.h>
  34 #include <unistd.h>
  35 #include <signal.h>
  36 #include <dirent.h>
  37 #include <ctype.h>
  38 #include <sys/types.h>
  39 #include <sys/types.h>
  40 #include <sys/socket.h>
  41 #include <sys/stat.h>
  42 #include <sys/un.h>
  43 
  44 #include "sun_tools_attach_VirtualMachineImpl.h"
  45 
  46 #define RESTARTABLE(_cmd, _result) do { \
  47   do { \
  48     _result = _cmd; \
  49   } while((_result == -1) && (errno == EINTR)); \
  50 } while(0)
  51 
  52 /*
  53  * Declare library specific JNI_Onload entry if static build
  54  */
  55 DEF_STATIC_JNI_OnLoad
  56 
  57 /*
  58  * Defines a callback that is invoked for each process
  59  */
  60 typedef void (*ProcessCallback)(const pid_t pid, void* user_data);
  61 
  62 /*
  63  * Invokes the callback function for each process
  64  */
  65 static void forEachProcess(ProcessCallback f, void* user_data) {
  66     DIR* dir;
  67     struct dirent* ptr;
  68 
  69     /*
  70      * To locate the children we scan /proc looking for files that have a
  71      * position integer as a filename.
  72      */
  73     if ((dir = opendir("/proc")) == NULL) {
  74         return;
  75     }


< prev index next >