| /* |
| * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved. |
| * Copyright (c) 2015, 2015 SAP SE. 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. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| // Encapsulates the libodm library and provides more convenient interfaces. |
| |
| #ifndef OS_AIX_VM_LIBODM_AIX_HPP |
| #define OS_AIX_VM_LIBODM_AIX_HPP |
| |
| #include <odmi.h> |
| |
| |
| // The purpose of this code is to dynamically load the libodm library |
| // instead of statically linking against it. The library is AIX-specific. |
| // It only exists on AIX, not on PASE. In order to share binaries |
| // between AIX and PASE, we can't directly link against it. |
| |
| typedef int (*fun_odm_initialize )(void); |
| typedef char* (*fun_odm_set_path )(char*); |
| typedef CLASS_SYMBOL (*fun_odm_mount_class)(char*); |
| typedef void* (*fun_odm_get_obj )(CLASS_SYMBOL, char*, void*, int); |
| typedef int (*fun_odm_terminate )(void); |
| |
| class dynamicOdm { |
| void *_libhandle; |
| protected: |
| fun_odm_initialize _odm_initialize; |
| fun_odm_set_path _odm_set_path; |
| fun_odm_mount_class _odm_mount_class; |
| fun_odm_get_obj _odm_get_obj; |
| fun_odm_terminate _odm_terminate; |
| public: |
| dynamicOdm(); |
| ~dynamicOdm(); |
| bool odm_loaded() {return _libhandle != NULL; } |
| }; |
| |
| |
| // We provide a more convenient interface for odm access and |
| // especially to determine the exact AIX kernel version. |
| |
| class odmWrapper : private dynamicOdm { |
| CLASS_SYMBOL _odm_class; |
| char *_data; |
| bool _initialized; |
| void clean_data(); |
| |
| public: |
| // Make sure everything gets initialized and cleaned up properly. |
| explicit odmWrapper(char* odm_class_name, char* odm_path = NULL) : _odm_class((CLASS_SYMBOL)-1), |
| _data(NULL), _initialized(false) { |
| if (!odm_loaded()) { return; } |
| _initialized = ((*_odm_initialize)() != -1); |
| if (_initialized) { |
| if (odm_path) { (*_odm_set_path)(odm_path); } |
| _odm_class = (*_odm_mount_class)(odm_class_name); |
| } |
| } |
| ~odmWrapper() { |
| if (_initialized) { (*_odm_terminate)(); clean_data(); } |
| } |
| |
| CLASS_SYMBOL odm_class() { return _odm_class; } |
| bool has_class() { return odm_class() != (CLASS_SYMBOL)-1; } |
| int class_offset(char *field, bool is_aix_5); |
| char* data() { return _data; } |
| |
| char* retrieve_obj(char* name = NULL) { |
| clean_data(); |
| char *cnp = (char*)(void*)(*_odm_get_obj)(odm_class(), name, NULL, (name == NULL) ? ODM_NEXT : ODM_FIRST); |
| if (cnp != (char*)-1) { _data = cnp; } |
| return data(); |
| } |
| |
| int read_short(int offs) { |
| short *addr = (short*)(data() + offs); |
| return *addr; |
| } |
| |
| // Determine the exact AIX kernel version as 4 byte value. |
| // The high order 2 bytes must be initialized already. They can be determined by uname. |
| static void determine_os_kernel_version(uint32_t* p_ver); |
| }; |
| |
| #endif // OS_AIX_VM_LIBODM_AIX_HPP |