1 /* 2 * Copyright (c) 2015, 2020, 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 32 class WriteableFlags : AllStatic { 33 private: 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*, JVMFlagOrigin, FormatBuffer<80>&), JVMFlagOrigin 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, JVMFlagOrigin 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, JVMFlagOrigin 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, JVMFlagOrigin origin, FormatBuffer<80>& err_msg); 43 // set a int global flag 44 static JVMFlag::Error set_int_flag(const char* name, const char* value, JVMFlagOrigin origin, FormatBuffer<80>& err_msg); 45 // set a uint global flag 46 static JVMFlag::Error set_uint_flag(const char* name, const char* value, JVMFlagOrigin origin, FormatBuffer<80>& err_msg); 47 // set a intx global flag 48 static JVMFlag::Error set_intx_flag(const char* name, const char* value, JVMFlagOrigin origin, FormatBuffer<80>& err_msg); 49 // set a uintx global flag 50 static JVMFlag::Error set_uintx_flag(const char* name, const char* value, JVMFlagOrigin 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, JVMFlagOrigin 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, JVMFlagOrigin 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, JVMFlagOrigin origin, FormatBuffer<80>& err_msg); 57 // set a boolean global flag 58 static JVMFlag::Error set_bool_flag(const char* name, bool value, JVMFlagOrigin origin, FormatBuffer<80>& err_msg); 59 // set a int global flag 60 static JVMFlag::Error set_int_flag(const char* name, int value, JVMFlagOrigin origin, FormatBuffer<80>& err_msg); 61 // set a uint global flag 62 static JVMFlag::Error set_uint_flag(const char* name, uint value, JVMFlagOrigin origin, FormatBuffer<80>& err_msg); 63 // set a intx global flag 64 static JVMFlag::Error set_intx_flag(const char* name, intx value, JVMFlagOrigin origin, FormatBuffer<80>& err_msg); 65 // set a uintx global flag 66 static JVMFlag::Error set_uintx_flag(const char* name, uintx value, JVMFlagOrigin 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, JVMFlagOrigin 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, JVMFlagOrigin 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, JVMFlagOrigin origin, FormatBuffer<80>& err_msg); 73 // set a string global flag 74 static JVMFlag::Error set_ccstr_flag(const char* name, const char* value, JVMFlagOrigin origin, FormatBuffer<80>& err_msg); 75 76 public: 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, JVMFlagOrigin 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, JVMFlagOrigin origin, FormatBuffer<80>& err_msg); 90 }; 91 92 #endif // SHARE_SERVICES_WRITEABLEFLAGS_HPP 93