1/*
2 * Copyright (c) 2015, 2019, 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_SERVICES_WRITEABLEFLAGS_HPP
26#define SHARE_SERVICES_WRITEABLEFLAGS_HPP
27
28#include "runtime/flags/jvmFlag.hpp"
29#include "runtime/globals.hpp"
30#include "utilities/formatBuffer.hpp"
31
32class WriteableFlags : AllStatic {
33private:
34 // a writeable flag setter accepting either 'jvalue' or 'char *' values
35 static JVMFlag::Error set_flag(const char* name, const void* value, JVMFlag::Error(*setter)(JVMFlag*, const void*, JVMFlag::Flags, FormatBuffer<80>&), JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
36 // a writeable flag setter accepting 'char *' values
37 static JVMFlag::Error set_flag_from_char(JVMFlag* f, const void* value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
38 // a writeable flag setter accepting 'jvalue' values
39 static JVMFlag::Error set_flag_from_jvalue(JVMFlag* f, const void* value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
40
41 // set a boolean global flag
42 static JVMFlag::Error set_bool_flag(const char* name, const char* value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
43 // set a int global flag
44 static JVMFlag::Error set_int_flag(const char* name, const char* value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
45 // set a uint global flag
46 static JVMFlag::Error set_uint_flag(const char* name, const char* value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
47 // set a intx global flag
48 static JVMFlag::Error set_intx_flag(const char* name, const char* value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
49 // set a uintx global flag
50 static JVMFlag::Error set_uintx_flag(const char* name, const char* value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
51 // set a uint64_t global flag
52 static JVMFlag::Error set_uint64_t_flag(const char* name, const char* value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
53 // set a size_t global flag using value from AttachOperation
54 static JVMFlag::Error set_size_t_flag(const char* name, const char* value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
55 // set a double global flag using value from AttachOperation
56 static JVMFlag::Error set_double_flag(const char* name, const char* value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
57 // set a boolean global flag
58 static JVMFlag::Error set_bool_flag(const char* name, bool value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
59 // set a int global flag
60 static JVMFlag::Error set_int_flag(const char* name, int value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
61 // set a uint global flag
62 static JVMFlag::Error set_uint_flag(const char* name, uint value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
63 // set a intx global flag
64 static JVMFlag::Error set_intx_flag(const char* name, intx value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
65 // set a uintx global flag
66 static JVMFlag::Error set_uintx_flag(const char* name, uintx value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
67 // set a uint64_t global flag
68 static JVMFlag::Error set_uint64_t_flag(const char* name, uint64_t value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
69 // set a size_t global flag using value from AttachOperation
70 static JVMFlag::Error set_size_t_flag(const char* name, size_t value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
71 // set a double global flag using value from AttachOperation
72 static JVMFlag::Error set_double_flag(const char* name, double value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
73 // set a string global flag
74 static JVMFlag::Error set_ccstr_flag(const char* name, const char* value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
75
76public:
77 /* sets a writeable flag to the provided value
78 *
79 * - return status is one of the WriteableFlags::err enum values
80 * - an eventual error message will be generated to the provided err_msg buffer
81 */
82 static JVMFlag::Error set_flag(const char* flag_name, const char* flag_value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
83
84 /* sets a writeable flag to the provided value
85 *
86 * - return status is one of the WriteableFlags::err enum values
87 * - an eventual error message will be generated to the provided err_msg buffer
88 */
89 static JVMFlag::Error set_flag(const char* flag_name, jvalue flag_value, JVMFlag::Flags origin, FormatBuffer<80>& err_msg);
90};
91
92#endif // SHARE_SERVICES_WRITEABLEFLAGS_HPP
93