cefpython/cefpython/cef1/include/cef_runnable.h at cefpython31 · pythonthings/cefpython · GitHub

Repository navigation

History

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

338

339

340

341

342

343

344

345

346

// Redistribution and use in source and binary forms, with or without

// modification, are permitted provided that the following conditions are

// met:

// * Redistributions of source code must retain the above copyright

// notice, this list of conditions and the following disclaimer.

// * Redistributions in binary form must reproduce the above

// copyright notice, this list of conditions and the following disclaimer

// in the documentation and/or other materials provided with the

// distribution.

// * Neither the name of Google Inc. nor the name Chromium Embedded

// Framework nor the names of its contributors may be used to endorse

// or promote products derived from this software without specific prior

// written permission.

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// The contents of this file are a modified extract of base/task.h

#ifndef CEF_INCLUDE_CEF_RUNNABLE_H_

#define CEF_INCLUDE_CEF_RUNNABLE_H_

#pragma once

#include "include/cef_base.h"

#include "include/cef_task.h"

#ifdef BUILDING_CEF_SHARED

#include "base/tuple.h"

#else

#include "internal/cef_tuple.h"

#endif

// CefRunnableMethodTraits -----------------------------------------------------

// This traits-class is used by CefRunnableMethod to manage the lifetime of the

// callee object. By default, it is assumed that the callee supports AddRef

// and Release methods. A particular class can specialize this template to

// define other lifetime management. For example, if the callee is known to

// live longer than the CefRunnableMethod object, then a CefRunnableMethodTraits

// struct could be defined with empty RetainCallee and ReleaseCallee methods.

// The DISABLE_RUNNABLE_METHOD_REFCOUNT macro is provided as a convenient way

// for declaring a CefRunnableMethodTraits that disables refcounting.

template <class T>

struct CefRunnableMethodTraits {

CefRunnableMethodTraits() {

}

~CefRunnableMethodTraits() {

}

void RetainCallee(T* obj) {

#ifndef NDEBUG

// Catch NewCefRunnableMethod being called in an object's constructor.

// This isn't safe since the method can be invoked before the constructor

// completes, causing the object to be deleted.

obj->AddRef();

obj->Release();

#endif

obj->AddRef();

}

void ReleaseCallee(T* obj) {

obj->Release();

}

};

// Convenience macro for declaring a CefRunnableMethodTraits that disables

// refcounting of a class. This is useful if you know that the callee

// will outlive the CefRunnableMethod object and thus do not need the ref

// counts.

// The invocation of DISABLE_RUNNABLE_METHOD_REFCOUNT should be done at the

// global namespace scope. Example:

// namespace foo {

// class Bar {

// ...

// };

// } // namespace foo

// DISABLE_RUNNABLE_METHOD_REFCOUNT(foo::Bar);

// This is different from DISALLOW_COPY_AND_ASSIGN which is declared inside the

// class.

#define DISABLE_RUNNABLE_METHOD_REFCOUNT(TypeName) \

template <> \

struct CefRunnableMethodTraits<TypeName> { \

void RetainCallee(TypeName* manager) {} \

void ReleaseCallee(TypeName* manager) {} \

}

// CefRunnableMethod and CefRunnableFunction ----------------------------------

// CefRunnable methods are a type of task that call a function on an object

// when they are run. We implement both an object and a set of

// NewCefRunnableMethod and NewCefRunnableFunction functions for convenience.

// These functions are overloaded and will infer the template types,

// simplifying calling code.

// The template definitions all use the following names:

// T - the class type of the object you're supplying

// this is not needed for the Static version of the call

// Method/Function - the signature of a pointer to the method or function you

// want to call

// Param - the parameter(s) to the method, possibly packed as a Tuple

// A - the first parameter (if any) to the method

// B - the second parameter (if any) to the method

// Put these all together and you get an object that can call a method whose

// signature is:

// R T::MyFunction([A[, B]])

// Usage:

// CefPostTask(TID_UI, NewCefRunnableMethod(object, &Object::method[, a[, b]])

// CefPostTask(TID_UI, NewCefRunnableFunction(&function[, a[, b]])

// CefRunnableMethod and NewCefRunnableMethod implementation ------------------

template <class T, class Method, class Params>

class CefRunnableMethod : public CefTask {

public:

CefRunnableMethod(T* obj, Method meth, const Params& params)

: obj_(obj), meth_(meth), params_(params) {

traits_.RetainCallee(obj_);

}

~CefRunnableMethod() {

T* obj = obj_;

obj_ = NULL;

if (obj)

traits_.ReleaseCallee(obj);

}

virtual void Execute(CefThreadId threadId) {

if (obj_)

DispatchToMethod(obj_, meth_, params_);

}

private:

T* obj_;

Method meth_;

Params params_;

CefRunnableMethodTraits<T> traits_;

IMPLEMENT_REFCOUNTING(CefRunnableMethod);

};

template <class T, class Method>

inline CefRefPtr<CefTask> NewCefRunnableMethod(T* object, Method method) {

return new CefRunnableMethod<T, Method, Tuple0>(object, method, MakeTuple());

}

template <class T, class Method, class A>

inline CefRefPtr<CefTask> NewCefRunnableMethod(T* object, Method method,

const A& a) {

return new CefRunnableMethod<T, Method, Tuple1<A> >(object,

method,

MakeTuple(a));

}

template <class T, class Method, class A, class B>

inline CefRefPtr<CefTask> NewCefRunnableMethod(T* object, Method method,

const A& a, const B& b) {

return new CefRunnableMethod<T, Method, Tuple2<A, B> >(object, method,

MakeTuple(a, b));

}

template <class T, class Method, class A, class B, class C>

inline CefRefPtr<CefTask> NewCefRunnableMethod(T* object, Method method,

const A& a, const B& b,

const C& c) {

return new CefRunnableMethod<T, Method, Tuple3<A, B, C> >(object, method,

MakeTuple(a, b,

c));

}

template <class T, class Method, class A, class B, class C, class D>

inline CefRefPtr<CefTask> NewCefRunnableMethod(T* object, Method method,

const A& a, const B& b,

const C& c, const D& d) {

return new CefRunnableMethod<T, Method, Tuple4<A, B, C, D> >(object, method,

MakeTuple(a, b,

d));

}

template <class T, class Method, class A, class B, class C, class D, class E>

inline CefRefPtr<CefTask> NewCefRunnableMethod(T* object, Method method,

const A& a, const B& b,

const C& c, const D& d,

const E& e) {

return new CefRunnableMethod<T,

Method,

Tuple5<A, B, C, D, E> >(object,

method,

MakeTuple(a, b, c, d,

e));

}

template <class T, class Method, class A, class B, class C, class D, class E,

class F>

inline CefRefPtr<CefTask> NewCefRunnableMethod(T* object, Method method,

const A& a, const B& b,

const C& c, const D& d,

const E& e, const F& f) {

return new CefRunnableMethod<T,

Method,

Tuple6<A, B, C, D, E, F> >(object,

method,

MakeTuple(a, b, c, d,

e, f));

}

template <class T, class Method, class A, class B, class C, class D, class E,

class F, class G>

inline CefRefPtr<CefTask> NewCefRunnableMethod(T* object, Method method,

const A& a, const B& b,

const C& c, const D& d,

const E& e, const F& f,

const G& g) {

return new CefRunnableMethod<T,

Method,

Tuple7<A, B, C, D, E, F, G> >(object,

method,

MakeTuple(a, b, c,

d, e, f,

g));

}

// CefRunnableFunction and NewCefRunnableFunction implementation --------------

template <class Function, class Params>

class CefRunnableFunction : public CefTask {

public:

CefRunnableFunction(Function function, const Params& params)

: function_(function), params_(params) {

}

~CefRunnableFunction() {

}

virtual void Execute(CefThreadId threadId) {

if (function_)

DispatchToFunction(function_, params_);

}

private:

Function function_;

Params params_;

IMPLEMENT_REFCOUNTING(CefRunnableFunction);

};

template <class Function>

inline CefRefPtr<CefTask> NewCefRunnableFunction(Function function) {

return new CefRunnableFunction<Function, Tuple0>(function, MakeTuple());

}

template <class Function, class A>

inline CefRefPtr<CefTask> NewCefRunnableFunction(Function function,

const A& a) {

return new CefRunnableFunction<Function, Tuple1<A> >(function, MakeTuple(a));

}

template <class Function, class A, class B>

inline CefRefPtr<CefTask> NewCefRunnableFunction(Function function,

const A& a, const B& b) {

return new CefRunnableFunction<Function, Tuple2<A, B> >(function,

MakeTuple(a, b));

}

template <class Function, class A, class B, class C>

inline CefRefPtr<CefTask> NewCefRunnableFunction(Function function,

const A& a, const B& b,

const C& c) {

return new CefRunnableFunction<Function, Tuple3<A, B, C> >(function,

MakeTuple(a, b,

c));

}

template <class Function, class A, class B, class C, class D>

inline CefRefPtr<CefTask> NewCefRunnableFunction(Function function,

const A& a, const B& b,

const C& c, const D& d) {

return new CefRunnableFunction<Function, Tuple4<A, B, C, D> >(function,

MakeTuple(a, b,

d));

}

template <class Function, class A, class B, class C, class D, class E>

inline CefRefPtr<CefTask> NewCefRunnableFunction(Function function,

const A& a, const B& b,

const C& c, const D& d,

const E& e) {

return new CefRunnableFunction<Function, Tuple5<A, B, C, D, E> >(function,

MakeTuple(a, b, c, d, e));

}

template <class Function, class A, class B, class C, class D, class E,

class F>

inline CefRefPtr<CefTask> NewCefRunnableFunction(Function function,

const A& a, const B& b,

const C& c, const D& d,

const E& e, const F& f) {

return new CefRunnableFunction<Function, Tuple6<A, B, C, D, E, F> >(function,

MakeTuple(a, b, c, d, e, f));

}

template <class Function, class A, class B, class C, class D, class E,

class F, class G>

inline CefRefPtr<CefTask> NewCefRunnableFunction(Function function,

const A& a, const B& b,

const C& c, const D& d,

const E& e, const F& f,

const G& g) {

return new CefRunnableFunction<Function, Tuple7<A, B, C, D, E, F, G> >(

function, MakeTuple(a, b, c, d, e, f, g));

}

template <class Function, class A, class B, class C, class D, class E,

class F, class G, class H>

inline CefRefPtr<CefTask> NewCefRunnableFunction(Function function,

const A& a, const B& b,

const C& c, const D& d,

const E& e, const F& f,

const G& g, const H& h) {

return new CefRunnableFunction<Function, Tuple8<A, B, C, D, E, F, G, H> >(

function, MakeTuple(a, b, c, d, e, f, g, h));

}

#endif // CEF_INCLUDE_CEF_RUNNABLE_H_

cefpython/cefpython/cef1/include/cef_runnable.h at cefpython31 · pythonthings/cefpython · GitHub

Repository navigation

Expand file tree

Breadcrumbs

cef_runnable.h

Latest commit

History

Breadcrumbs

cef_runnable.h

File metadata and controls