| /* Callback management |
| Copyright (C) 2014-2018 Free Software Foundation, Inc. |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify it under |
| the terms of the GNU General Public License as published by the Free |
| Software Foundation; either version 3, or (at your option) any later |
| version. |
| |
| GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
| WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING3. If not see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef CC1_PLUGIN_CALLBACKS_HH |
| #define CC1_PLUGIN_CALLBACKS_HH |
| |
| #include "status.hh" |
| #include "hashtab.h" |
| |
| namespace cc1_plugin |
| { |
| class connection; |
| |
| // The type of a callback method. |
| typedef status callback_ftype (connection *); |
| |
| // This class manages callback functions. A callback has a name and |
| // an underlying function. When a query packet arrives, the name is |
| // inspected and the corresponding function is called. A callback |
| // function has to know how to decode its own arguments, but |
| // wrappers are provided elsewhere to automate this. |
| class callbacks |
| { |
| public: |
| |
| callbacks (); |
| ~callbacks (); |
| |
| // Add a callback named NAME. FUNC is the function to call when |
| // this method is invoked. |
| void add_callback (const char *name, callback_ftype *func); |
| |
| // Look up a callback by name. Returns NULL if the method is not |
| // found. |
| callback_ftype *find_callback (const char *name); |
| |
| private: |
| |
| // Declared but not defined to avoid use. |
| callbacks (const callbacks &); |
| callbacks &operator= (const callbacks &); |
| |
| // The mapping. |
| htab_t m_registry; |
| }; |
| }; |
| |
| #endif // CC1_PLUGIN_CALLBACKS_HH |