test public
Dependencies: HttpServer_snapshot_mbed-os
mbed-rpc/rpc.cpp@0:e9fd5575b10e, 2019-10-18 (annotated)
- Committer:
- anhtran
- Date:
- Fri Oct 18 03:09:43 2019 +0000
- Revision:
- 0:e9fd5575b10e
abc
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
anhtran | 0:e9fd5575b10e | 1 | /* mbed Microcontroller Library |
anhtran | 0:e9fd5575b10e | 2 | * Copyright (c) 2006-2013 ARM Limited |
anhtran | 0:e9fd5575b10e | 3 | * |
anhtran | 0:e9fd5575b10e | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
anhtran | 0:e9fd5575b10e | 5 | * you may not use this file except in compliance with the License. |
anhtran | 0:e9fd5575b10e | 6 | * You may obtain a copy of the License at |
anhtran | 0:e9fd5575b10e | 7 | * |
anhtran | 0:e9fd5575b10e | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
anhtran | 0:e9fd5575b10e | 9 | * |
anhtran | 0:e9fd5575b10e | 10 | * Unless required by applicable law or agreed to in writing, software |
anhtran | 0:e9fd5575b10e | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
anhtran | 0:e9fd5575b10e | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
anhtran | 0:e9fd5575b10e | 13 | * See the License for the specific language governing permissions and |
anhtran | 0:e9fd5575b10e | 14 | * limitations under the License. |
anhtran | 0:e9fd5575b10e | 15 | */ |
anhtran | 0:e9fd5575b10e | 16 | #include "rpc.h" |
anhtran | 0:e9fd5575b10e | 17 | |
anhtran | 0:e9fd5575b10e | 18 | using namespace std; |
anhtran | 0:e9fd5575b10e | 19 | |
anhtran | 0:e9fd5575b10e | 20 | namespace mbed { |
anhtran | 0:e9fd5575b10e | 21 | |
anhtran | 0:e9fd5575b10e | 22 | RPC::RPC(const char *name) { |
anhtran | 0:e9fd5575b10e | 23 | _from_construct = false; |
anhtran | 0:e9fd5575b10e | 24 | if (name != NULL) { |
anhtran | 0:e9fd5575b10e | 25 | _name = new char[strlen(name) + 1]; |
anhtran | 0:e9fd5575b10e | 26 | strcpy(_name, name); |
anhtran | 0:e9fd5575b10e | 27 | } else { |
anhtran | 0:e9fd5575b10e | 28 | _name = new char[12]; |
anhtran | 0:e9fd5575b10e | 29 | sprintf(_name, "obj%p", this); |
anhtran | 0:e9fd5575b10e | 30 | } |
anhtran | 0:e9fd5575b10e | 31 | // put this object at head of the list |
anhtran | 0:e9fd5575b10e | 32 | _next = _head; |
anhtran | 0:e9fd5575b10e | 33 | _head = this; |
anhtran | 0:e9fd5575b10e | 34 | } |
anhtran | 0:e9fd5575b10e | 35 | |
anhtran | 0:e9fd5575b10e | 36 | RPC::~RPC() { |
anhtran | 0:e9fd5575b10e | 37 | // remove this object from the list |
anhtran | 0:e9fd5575b10e | 38 | if (_head == this) { // first in the list, so just drop me |
anhtran | 0:e9fd5575b10e | 39 | _head = _next; |
anhtran | 0:e9fd5575b10e | 40 | } else { // find the object before me, then drop me |
anhtran | 0:e9fd5575b10e | 41 | RPC* p = _head; |
anhtran | 0:e9fd5575b10e | 42 | while (p->_next != this) { |
anhtran | 0:e9fd5575b10e | 43 | p = p->_next; |
anhtran | 0:e9fd5575b10e | 44 | } |
anhtran | 0:e9fd5575b10e | 45 | p->_next = _next; |
anhtran | 0:e9fd5575b10e | 46 | } |
anhtran | 0:e9fd5575b10e | 47 | } |
anhtran | 0:e9fd5575b10e | 48 | |
anhtran | 0:e9fd5575b10e | 49 | const rpc_method *RPC::get_rpc_methods() { |
anhtran | 0:e9fd5575b10e | 50 | static const rpc_method methods[] = { |
anhtran | 0:e9fd5575b10e | 51 | {"delete", rpc_method_caller<RPC, &RPC::delete_self> }, |
anhtran | 0:e9fd5575b10e | 52 | RPC_METHOD_END |
anhtran | 0:e9fd5575b10e | 53 | }; |
anhtran | 0:e9fd5575b10e | 54 | return methods; |
anhtran | 0:e9fd5575b10e | 55 | } |
anhtran | 0:e9fd5575b10e | 56 | |
anhtran | 0:e9fd5575b10e | 57 | RPC *RPC::lookup(const char *name) { |
anhtran | 0:e9fd5575b10e | 58 | size_t len = strlen(name); |
anhtran | 0:e9fd5575b10e | 59 | for (RPC *p = _head; p != NULL; p = p->_next) { |
anhtran | 0:e9fd5575b10e | 60 | /* Check that p->_name matches name and is the correct length */ |
anhtran | 0:e9fd5575b10e | 61 | if (strncmp(p->_name, name, len) == 0 && (strlen(p->_name) == len)) { |
anhtran | 0:e9fd5575b10e | 62 | return p; |
anhtran | 0:e9fd5575b10e | 63 | } |
anhtran | 0:e9fd5575b10e | 64 | } |
anhtran | 0:e9fd5575b10e | 65 | return NULL; |
anhtran | 0:e9fd5575b10e | 66 | } |
anhtran | 0:e9fd5575b10e | 67 | |
anhtran | 0:e9fd5575b10e | 68 | void RPC::delete_self() { |
anhtran | 0:e9fd5575b10e | 69 | delete[] _name; |
anhtran | 0:e9fd5575b10e | 70 | if (_from_construct) { |
anhtran | 0:e9fd5575b10e | 71 | delete this; |
anhtran | 0:e9fd5575b10e | 72 | } |
anhtran | 0:e9fd5575b10e | 73 | } |
anhtran | 0:e9fd5575b10e | 74 | |
anhtran | 0:e9fd5575b10e | 75 | void RPC::list_objs(Arguments *args, Reply *result) { |
anhtran | 0:e9fd5575b10e | 76 | for (RPC *ptr = RPC::_head; ptr != NULL; ptr = ptr->_next) { |
anhtran | 0:e9fd5575b10e | 77 | if (ptr->_from_construct) { |
anhtran | 0:e9fd5575b10e | 78 | result->putData<const char*>(ptr->_name); |
anhtran | 0:e9fd5575b10e | 79 | } |
anhtran | 0:e9fd5575b10e | 80 | } |
anhtran | 0:e9fd5575b10e | 81 | } |
anhtran | 0:e9fd5575b10e | 82 | |
anhtran | 0:e9fd5575b10e | 83 | void RPC::clear(Arguments*, Reply*) { |
anhtran | 0:e9fd5575b10e | 84 | RPC *ptr = RPC::_head; |
anhtran | 0:e9fd5575b10e | 85 | while (ptr != NULL) { |
anhtran | 0:e9fd5575b10e | 86 | RPC *tmp = ptr; |
anhtran | 0:e9fd5575b10e | 87 | ptr = ptr->_next; |
anhtran | 0:e9fd5575b10e | 88 | delete[] tmp->_name; |
anhtran | 0:e9fd5575b10e | 89 | if (tmp->_from_construct) { |
anhtran | 0:e9fd5575b10e | 90 | delete tmp; |
anhtran | 0:e9fd5575b10e | 91 | } |
anhtran | 0:e9fd5575b10e | 92 | } |
anhtran | 0:e9fd5575b10e | 93 | } |
anhtran | 0:e9fd5575b10e | 94 | |
anhtran | 0:e9fd5575b10e | 95 | const rpc_function RPC::_RPC_funcs[] = { |
anhtran | 0:e9fd5575b10e | 96 | {"clear", &RPC::clear }, |
anhtran | 0:e9fd5575b10e | 97 | { "objects", &RPC::list_objs }, |
anhtran | 0:e9fd5575b10e | 98 | RPC_METHOD_END |
anhtran | 0:e9fd5575b10e | 99 | }; |
anhtran | 0:e9fd5575b10e | 100 | |
anhtran | 0:e9fd5575b10e | 101 | rpc_class RPC::_RPC_class = { "RPC", _RPC_funcs, NULL }; |
anhtran | 0:e9fd5575b10e | 102 | |
anhtran | 0:e9fd5575b10e | 103 | RPC *RPC::_head = NULL; |
anhtran | 0:e9fd5575b10e | 104 | |
anhtran | 0:e9fd5575b10e | 105 | rpc_class *RPC::_classes = &_RPC_class; |
anhtran | 0:e9fd5575b10e | 106 | |
anhtran | 0:e9fd5575b10e | 107 | bool RPC::call(const char *request, char *reply) { |
anhtran | 0:e9fd5575b10e | 108 | if (request == NULL) return false; |
anhtran | 0:e9fd5575b10e | 109 | |
anhtran | 0:e9fd5575b10e | 110 | Arguments args(request); |
anhtran | 0:e9fd5575b10e | 111 | Reply r(reply); |
anhtran | 0:e9fd5575b10e | 112 | |
anhtran | 0:e9fd5575b10e | 113 | /* If there's no name print object and class names to result */ |
anhtran | 0:e9fd5575b10e | 114 | if (args.obj_name == NULL) { |
anhtran | 0:e9fd5575b10e | 115 | for (RPC *p = RPC::_head; p != NULL; p = p->_next) { |
anhtran | 0:e9fd5575b10e | 116 | r.putData<const char*>(p->_name); |
anhtran | 0:e9fd5575b10e | 117 | } |
anhtran | 0:e9fd5575b10e | 118 | for (rpc_class *c = RPC::_classes; c != NULL; c = c->next) { |
anhtran | 0:e9fd5575b10e | 119 | r.putData<const char*>(c->name); |
anhtran | 0:e9fd5575b10e | 120 | } |
anhtran | 0:e9fd5575b10e | 121 | return true; |
anhtran | 0:e9fd5575b10e | 122 | } |
anhtran | 0:e9fd5575b10e | 123 | |
anhtran | 0:e9fd5575b10e | 124 | /* First try matching an instance */ |
anhtran | 0:e9fd5575b10e | 125 | RPC *p = lookup(args.obj_name); |
anhtran | 0:e9fd5575b10e | 126 | if (p != NULL) { |
anhtran | 0:e9fd5575b10e | 127 | /* Get the list of methods we support */ |
anhtran | 0:e9fd5575b10e | 128 | const rpc_method *cur_method = p->get_rpc_methods(); |
anhtran | 0:e9fd5575b10e | 129 | |
anhtran | 0:e9fd5575b10e | 130 | /* When there's no method print method names to result */ |
anhtran | 0:e9fd5575b10e | 131 | if (args.method_name == NULL) { |
anhtran | 0:e9fd5575b10e | 132 | while (true) { |
anhtran | 0:e9fd5575b10e | 133 | for (; cur_method->name != NULL; cur_method++) { |
anhtran | 0:e9fd5575b10e | 134 | r.putData<const char*>(cur_method->name); |
anhtran | 0:e9fd5575b10e | 135 | } |
anhtran | 0:e9fd5575b10e | 136 | |
anhtran | 0:e9fd5575b10e | 137 | /* write_name_arr's args are references, so result and cur_method will have changed */ |
anhtran | 0:e9fd5575b10e | 138 | if (cur_method->super != 0) { |
anhtran | 0:e9fd5575b10e | 139 | cur_method = cur_method->super(p); |
anhtran | 0:e9fd5575b10e | 140 | } else { |
anhtran | 0:e9fd5575b10e | 141 | return true; |
anhtran | 0:e9fd5575b10e | 142 | } |
anhtran | 0:e9fd5575b10e | 143 | } |
anhtran | 0:e9fd5575b10e | 144 | } |
anhtran | 0:e9fd5575b10e | 145 | |
anhtran | 0:e9fd5575b10e | 146 | /* Look through the methods for the one whose name matches */ |
anhtran | 0:e9fd5575b10e | 147 | while (true) { |
anhtran | 0:e9fd5575b10e | 148 | for (; cur_method->name != NULL; cur_method++) { |
anhtran | 0:e9fd5575b10e | 149 | if (strcmp(cur_method->name, args.method_name) == 0) { |
anhtran | 0:e9fd5575b10e | 150 | (cur_method->method_caller)(p, &args, &r); |
anhtran | 0:e9fd5575b10e | 151 | return true; |
anhtran | 0:e9fd5575b10e | 152 | } |
anhtran | 0:e9fd5575b10e | 153 | } |
anhtran | 0:e9fd5575b10e | 154 | |
anhtran | 0:e9fd5575b10e | 155 | if (cur_method->super != 0) { |
anhtran | 0:e9fd5575b10e | 156 | cur_method = cur_method->super(p); |
anhtran | 0:e9fd5575b10e | 157 | } else { |
anhtran | 0:e9fd5575b10e | 158 | /* end of methods and no match */ |
anhtran | 0:e9fd5575b10e | 159 | return false; |
anhtran | 0:e9fd5575b10e | 160 | } |
anhtran | 0:e9fd5575b10e | 161 | |
anhtran | 0:e9fd5575b10e | 162 | } |
anhtran | 0:e9fd5575b10e | 163 | } |
anhtran | 0:e9fd5575b10e | 164 | |
anhtran | 0:e9fd5575b10e | 165 | /* Then try a class */ |
anhtran | 0:e9fd5575b10e | 166 | for (const rpc_class *q = _classes; q != NULL; q = q->next) { |
anhtran | 0:e9fd5575b10e | 167 | if (strcmp(q->name, args.obj_name) == 0) { |
anhtran | 0:e9fd5575b10e | 168 | /* Matched the class name, so get its functions */ |
anhtran | 0:e9fd5575b10e | 169 | const rpc_function *cur_func = q->static_functions; |
anhtran | 0:e9fd5575b10e | 170 | if (args.method_name == NULL) { |
anhtran | 0:e9fd5575b10e | 171 | for (; cur_func->name != NULL; cur_func++) { |
anhtran | 0:e9fd5575b10e | 172 | r.putData<const char*>(cur_func->name); |
anhtran | 0:e9fd5575b10e | 173 | } |
anhtran | 0:e9fd5575b10e | 174 | return true; |
anhtran | 0:e9fd5575b10e | 175 | } else { |
anhtran | 0:e9fd5575b10e | 176 | /* Otherwise call the appropriate function */ |
anhtran | 0:e9fd5575b10e | 177 | for (; cur_func->name != NULL; cur_func++) { |
anhtran | 0:e9fd5575b10e | 178 | if (strcmp(cur_func->name, args.method_name) == 0) { |
anhtran | 0:e9fd5575b10e | 179 | (cur_func->function_caller)(&args, &r); |
anhtran | 0:e9fd5575b10e | 180 | return true; |
anhtran | 0:e9fd5575b10e | 181 | } |
anhtran | 0:e9fd5575b10e | 182 | } |
anhtran | 0:e9fd5575b10e | 183 | return false; |
anhtran | 0:e9fd5575b10e | 184 | } |
anhtran | 0:e9fd5575b10e | 185 | } |
anhtran | 0:e9fd5575b10e | 186 | } |
anhtran | 0:e9fd5575b10e | 187 | |
anhtran | 0:e9fd5575b10e | 188 | return false; |
anhtran | 0:e9fd5575b10e | 189 | } |
anhtran | 0:e9fd5575b10e | 190 | |
anhtran | 0:e9fd5575b10e | 191 | } // namespace mbed |
anhtran | 0:e9fd5575b10e | 192 |