writeableFlags.hpp revision 8569:5bbf25472731 
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
25#ifndef SHARE_VM_SERVICES_WRITEABLEFLAG_HPP
26#define SHARE_VM_SERVICES_WRITEABLEFLAG_HPP
27
28class WriteableFlags : AllStatic {
29private:
30  // a writeable flag setter accepting either 'jvalue' or 'char *' values
31  static Flag::Error set_flag(const char* name, const void* value, Flag::Error(*setter)(Flag*, const void*, Flag::Flags, FormatBuffer<80>&), Flag::Flags origin, FormatBuffer<80>& err_msg);
32  // a writeable flag setter accepting 'char *' values
33  static Flag::Error set_flag_from_char(Flag* f, const void* value, Flag::Flags origin, FormatBuffer<80>& err_msg);
34  // a writeable flag setter accepting 'jvalue' values
35  static Flag::Error set_flag_from_jvalue(Flag* f, const void* value, Flag::Flags origin, FormatBuffer<80>& err_msg);
36
37  // set a boolean global flag
38  static Flag::Error set_bool_flag(const char* name, const char* value, Flag::Flags origin, FormatBuffer<80>& err_msg);
39  // set a int global flag
40  static Flag::Error set_int_flag(const char* name, const char* value, Flag::Flags origin, FormatBuffer<80>& err_msg);
41  // set a uint global flag
42  static Flag::Error set_uint_flag(const char* name, const char* value, Flag::Flags origin, FormatBuffer<80>& err_msg);
43  // set a intx global flag
44  static Flag::Error set_intx_flag(const char* name, const char* value, Flag::Flags origin, FormatBuffer<80>& err_msg);
45  // set a uintx global flag
46  static Flag::Error set_uintx_flag(const char* name, const char* value, Flag::Flags origin, FormatBuffer<80>& err_msg);
47  // set a uint64_t global flag
48  static Flag::Error set_uint64_t_flag(const char* name, const char* value, Flag::Flags origin, FormatBuffer<80>& err_msg);
49  // set a size_t global flag using value from AttachOperation
50  static Flag::Error set_size_t_flag(const char* name, const char* value, Flag::Flags origin, FormatBuffer<80>& err_msg);
51  // set a boolean global flag
52  static Flag::Error set_bool_flag(const char* name, bool value, Flag::Flags origin, FormatBuffer<80>& err_msg);
53  // set a int global flag
54  static Flag::Error set_int_flag(const char* name, int value, Flag::Flags origin, FormatBuffer<80>& err_msg);
55  // set a uint global flag
56  static Flag::Error set_uint_flag(const char* name, uint value, Flag::Flags origin, FormatBuffer<80>& err_msg);
57  // set a intx global flag
58  static Flag::Error set_intx_flag(const char* name, intx value, Flag::Flags origin, FormatBuffer<80>& err_msg);
59  // set a uintx global flag
60  static Flag::Error set_uintx_flag(const char* name, uintx value, Flag::Flags origin, FormatBuffer<80>& err_msg);
61  // set a uint64_t global flag
62  static Flag::Error set_uint64_t_flag(const char* name, uint64_t value, Flag::Flags origin, FormatBuffer<80>& err_msg);
63  // set a size_t global flag using value from AttachOperation
64  static Flag::Error set_size_t_flag(const char* name, size_t value, Flag::Flags origin, FormatBuffer<80>& err_msg);
65  // set a string global flag
66  static Flag::Error set_ccstr_flag(const char* name, const char* value, Flag::Flags origin, FormatBuffer<80>& err_msg);
67
68public:
69  /* sets a writeable flag to the provided value
70   *
71   * - return status is one of the WriteableFlags::err enum values
72   * - an eventual error message will be generated to the provided err_msg buffer
73   */
74  static Flag::Error set_flag(const char* flag_name, const char* flag_value, Flag::Flags origin, FormatBuffer<80>& err_msg);
75
76  /* sets a writeable flag to the provided value
77   *
78   * - return status is one of the WriteableFlags::err enum values
79   * - an eventual error message will be generated to the provided err_msg buffer
80   */
81  static Flag::Error set_flag(const char* flag_name, jvalue flag_value, Flag::Flags origin, FormatBuffer<80>& err_msg);
82};
83
84#endif /* SHARE_VM_SERVICES_WRITEABLEFLAG_HPP */
85