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annotate src/modules/thread/wrap_ThreadModule.cpp @ 1098:a74672ba1320 minor

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Merge in channels from love-experiments Rewritten love.thread and changed communication method from weird system before, to channels.
author Bart van Strien <bart.bes+projects@gmail.com>
date Wed, 04 Jul 2012 17:15:16 +0200
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children ee1448bb9680
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1098
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1 /**
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2 * Copyright (c) 2006-2010 LOVE Development Team
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3 *
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4 * This software is provided 'as-is', without any express or implied
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5 * warranty. In no event will the authors be held liable for any damages
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6 * arising from the use of this software.
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7 *
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8 * Permission is granted to anyone to use this software for any purpose,
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9 * including commercial applications, and to alter it and redistribute it
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10 * freely, subject to the following restrictions:
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11 *
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12 * 1. The origin of this software must not be misrepresented; you must not
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13 * claim that you wrote the original software. If you use this software
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14 * in a product, an acknowledgment in the product documentation would be
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15 * appreciated but is not required.
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16 * 2. Altered source versions must be plainly marked as such, and must not be
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17 * misrepresented as being the original software.
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18 * 3. This notice may not be removed or altered from any source distribution.
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19 **/
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20
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21 #include "wrap_ThreadModule.h"
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22 #include "wrap_LuaThread.h"
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23 #include "wrap_Channel.h"
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24 #include <filesystem/File.h>
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25 #include <filesystem/FileData.h>
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26
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27 namespace love
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28 {
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29 namespace thread
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30 {
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31 static ThreadModule *instance = 0;
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32
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33 int w_newThread(lua_State *L)
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34 {
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35 std::string name = "Thread code";
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36 love::Data *data;
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37 if (lua_isstring(L, 1))
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38 luax_convobj(L, 1, "filesystem", "newFile");
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39 if (luax_istype(L, 1, FILESYSTEM_FILE_T))
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40 {
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41 try
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42 {
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43 love::filesystem::File * file = luax_checktype<love::filesystem::File>(L, 1, "File", FILESYSTEM_FILE_T);
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44 name = std::string("@") + file->getFilename();
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45 data = file->read();
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46 }
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47 catch (love::Exception & e)
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48 {
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49 return luaL_error(L, "%s", e.what());
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50 }
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51 }
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52 else if (luax_istype(L, 1, FILESYSTEM_FILE_DATA_T))
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53 {
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54 love::filesystem::FileData * fdata = luax_checktype<love::filesystem::FileData>(L, 1, "FileData", FILESYSTEM_FILE_DATA_T);
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55 name = std::string("@") + fdata->getFilename();
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56 data = fdata;
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57 data->retain();
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58 }
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59 else
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60 {
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61 data = luax_checktype<love::Data>(L, 1, "Data", DATA_T);
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62 data->retain();
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63 }
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64 LuaThread *t = instance->newThread(name, data);
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65 // do not worry, file->read() returns retained data
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66 data->release();
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67 luax_newtype(L, "Thread", THREAD_THREAD_T, (void*)t);
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68 return 1;
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69 }
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70
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71 int w_newChannel(lua_State *L)
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72 {
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73 Channel *c = instance->newChannel();
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74 luax_newtype(L, "Channel", THREAD_CHANNEL_T, (void*)c);
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75 return 1;
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76 }
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77
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78 int w_getChannel(lua_State *L)
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79 {
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80 std::string name = luax_checkstring(L, 1);
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81 Channel *c = instance->getChannel(name);
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82 luax_newtype(L, "Channel", THREAD_CHANNEL_T, (void*)c);
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83 return 1;
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84 }
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85
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86 // List of functions to wrap.
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87 static const luaL_Reg module_functions[] = {
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88 { "newThread", w_newThread },
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89 { "newChannel", w_newChannel },
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90 { "getChannel", w_getChannel },
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91 { 0, 0 }
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92 };
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93
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94 static const lua_CFunction types[] = {
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95 luaopen_thread,
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96 luaopen_channel,
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97 0
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98 };
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99
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100 extern "C" int luaopen_love_thread(lua_State *L)
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101 {
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102 if (instance == 0)
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103 {
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104 try
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105 {
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106 instance = new ThreadModule();
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107 }
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108 catch (Exception & e)
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109 {
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110 return luaL_error(L, "%s", e.what());
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111 }
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112 }
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113 else
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114 instance->retain();
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115
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116 WrappedModule w;
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117 w.module = instance;
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118 w.name = "thread";
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119 w.flags = MODULE_T;
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120 w.functions = module_functions;
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121 w.types = types;
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122
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123 return luax_register_module(L, w);
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124 }
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125 }
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126 }