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 28 class WriteableFlags : AllStatic { 29 private: 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 intx global flag 40 static Flag::Error set_intx_flag(const char* name, const char* value, Flag::Flags origin, FormatBuffer<80>& err_msg); 41 // set a uintx global flag 42 static Flag::Error set_uintx_flag(const char* name, const char* value, Flag::Flags origin, FormatBuffer<80>& err_msg); 43 // set a uint64_t global flag 44 static Flag::Error set_uint64_t_flag(const char* name, const char* value, Flag::Flags origin, FormatBuffer<80>& err_msg); 45 // set a size_t global flag using value from AttachOperation 46 static Flag::Error set_size_t_flag(const char* name, const char* value, Flag::Flags origin, FormatBuffer<80>& err_msg); 47 // set a boolean global flag 48 static Flag::Error set_bool_flag(const char* name, bool value, Flag::Flags origin, FormatBuffer<80>& err_msg); 49 // set a intx global flag 50 static Flag::Error set_intx_flag(const char* name, intx value, Flag::Flags origin, FormatBuffer<80>& err_msg); 51 // set a uintx global flag 52 static Flag::Error set_uintx_flag(const char* name, uintx value, Flag::Flags origin, FormatBuffer<80>& err_msg); 53 // set a uint64_t global flag 54 static Flag::Error set_uint64_t_flag(const char* name, uint64_t value, Flag::Flags origin, FormatBuffer<80>& err_msg); 55 // set a size_t global flag using value from AttachOperation 56 static Flag::Error set_size_t_flag(const char* name, size_t value, Flag::Flags origin, FormatBuffer<80>& err_msg); 57 // set a string global flag 58 static Flag::Error set_ccstr_flag(const char* name, const char* value, Flag::Flags origin, FormatBuffer<80>& err_msg); 59 60 public: 61 /* sets a writeable flag to the provided value 62 * 63 * - return status is one of the WriteableFlags::err enum values 64 * - an eventual error message will be generated to the provided err_msg buffer 65 */ 66 static Flag::Error set_flag(const char* flag_name, const char* flag_value, Flag::Flags origin, FormatBuffer<80>& err_msg); 67 68 /* sets a writeable flag to the provided value 69 * 70 * - return status is one of the WriteableFlags::err enum values 71 * - an eventual error message will be generated to the provided err_msg buffer 72 */ 73 static Flag::Error set_flag(const char* flag_name, jvalue flag_value, Flag::Flags origin, FormatBuffer<80>& err_msg); 74 }; 75 76 #endif /* SHARE_VM_SERVICES_WRITEABLEFLAG_HPP */ 77