jruby/cext/src/string.cpp at tmpdir-failure · MSNexploder/jruby · GitHub

History

512 lines (421 loc) · 11.7 KB

Raw

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

347

348

349

350

351

352

353

354

355

356

357

358

359

360

361

362

363

364

365

366

367

368

369

370

371

372

373

374

375

376

377

378

379

380

381

382

383

384

385

386

387

388

389

390

391

392

393

394

395

396

397

398

399

400

401

402

403

404

405

406

407

408

409

410

411

412

413

414

415

416

417

418

419

420

421

422

423

424

425

426

427

428

429

430

431

432

433

434

435

436

437

438

439

440

441

442

443

444

445

446

447

448

449

450

451

452

453

454

455

456

457

458

459

460

461

462

463

464

465

466

467

468

469

470

471

472

473

474

475

476

477

478

479

480

481

482

483

484

485

486

487

488

489

490

491

492

493

494

495

496

497

498

499

500

501

502

503

504

505

506

507

508

509

510

511

512

/***** BEGIN LICENSE BLOCK *****

* Version: CPL 1.0/GPL 2.0/LGPL 2.1

* The contents of this file are subject to the Common Public

* License Version 1.0 (the "License"); you may not use this file

* except in compliance with the License. You may obtain a copy of

* the License at http://www.eclipse.org/legal/cpl-v10.html

* Software distributed under the License is distributed on an "AS

* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or

* implied. See the License for the specific language governing

* rights and limitations under the License.

* Alternatively, the contents of this file may be used under the terms of

* either of the GNU General Public License Version 2 or later (the "GPL"),

* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),

* in which case the provisions of the GPL or the LGPL are applicable instead

* of those above. If you wish to allow use of your version of this file only

* under the terms of either the GPL or the LGPL, and not to allow others to

* use your version of this file under the terms of the CPL, indicate your

* decision by deleting the provisions above and replace them with the notice

* and other provisions required by the GPL or the LGPL. If you do not delete

* the provisions above, a recipient may use your version of this file under

* the terms of any one of the CPL, the GPL or the LGPL.

***** END LICENSE BLOCK *****/

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <sys/param.h>

#include <jni.h>

#include "JLocalEnv.h"

#include "jruby.h"

#include "JUtil.h"

#include "ruby.h"

#include "Handle.h"

using namespace jruby;

RubyString::RubyString(JNIEnv* env, jobject obj_): Handle(env, obj_, T_STRING)

{

rwdata.rstring = NULL;

}

RubyString::~RubyString()

{

RString* rstring = rwdata.rstring;

if (rstring != NULL) {

free(rstring->ptr);

free(rstring);

}

int

RubyString::length()

{

// If already synced with java, just return the cached length value

if (rwdata.rstring != NULL) {

return rwdata.rstring->len;

}

JLocalEnv env;

jobject byteList = env->GetObjectField(obj, RubyString_value_field);

return env->GetIntField(byteList, ByteList_length_field);

}

static bool

RubyString_jsync(JNIEnv* env, DataSync* data)

{

return ((RubyString *) data->data)->jsync(env);

}

static bool

RubyString_nsync(JNIEnv* env, DataSync* data)

{

return ((RubyString *) data->data)->nsync(env);

}

static bool

RubyString_clean(JNIEnv* env, DataSync* data)

{

return ((RubyString *) data->data)->clean(env);

}

RString*

RubyString::toRString(bool readonly)

{

if (rwdata.rstring != NULL) {

if (readonly || !rwdata.readonly) {

return rwdata.rstring;

}

// Switch from readonly to read-write

rwdata.readonly = false;

TAILQ_INSERT_TAIL(&jruby::nsyncq, &rwdata.nsync, syncq);

JLocalEnv env;

nsync(env);

return rwdata.rstring;

}

JLocalEnv env;

rwdata.jsync.data = this;

rwdata.jsync.sync = RubyString_jsync;

rwdata.nsync.data = this;

rwdata.nsync.sync = RubyString_nsync;

rwdata.clean.data = this;

rwdata.clean.sync = RubyString_clean;

rwdata.rstring = (RString *) calloc(1, sizeof(RString));

checkExceptions(env);

rwdata.readonly = readonly;

TAILQ_INSERT_TAIL(&jruby::cleanq, &rwdata.clean, syncq);

TAILQ_INSERT_TAIL(&jruby::jsyncq, &rwdata.jsync, syncq);

if (!readonly) {

TAILQ_INSERT_TAIL(&jruby::nsyncq, &rwdata.nsync, syncq);

}

nsync(env);

return rwdata.rstring;

}

bool

RubyString::clean(JNIEnv* env)

{

// Clear the cached data

rwdata.readonly = false;

rwdata.rstring = NULL;

return false;

}

bool

RubyString::jsync(JNIEnv* env)

{

if (rwdata.readonly && rwdata.rstring != NULL) {

// Don't sync anything, just clear the cached data

rwdata.rstring = NULL;

rwdata.readonly = false;

return false;

}

if (rwdata.rstring != NULL && rwdata.rstring->ptr != NULL) {

jobject byteList = env->GetObjectField(obj, RubyString_value_field);

jobject bytes = env->GetObjectField(byteList, ByteList_bytes_field);

jint begin = env->GetIntField(byteList, ByteList_begin_field);

checkExceptions(env);

env->DeleteLocalRef(byteList);

RString* rstring = rwdata.rstring;

env->SetByteArrayRegion((jbyteArray) bytes, begin, rstring->len,

(jbyte *) rstring->ptr);

checkExceptions(env);

env->SetIntField(byteList, ByteList_length_field, rstring->len);

env->DeleteLocalRef(bytes);

}

return true;

}

bool

RubyString::nsync(JNIEnv* env)

{

jobject byteList = env->GetObjectField(obj, RubyString_value_field);

checkExceptions(env);

jobject bytes = env->GetObjectField(byteList, ByteList_bytes_field);

checkExceptions(env);

jint begin = env->GetIntField(byteList, ByteList_begin_field);

checkExceptions(env);

long length = env->GetIntField(byteList, ByteList_length_field);

checkExceptions(env);

jint capacity = env->GetArrayLength((jarray) bytes) - begin;

checkExceptions(env);

env->DeleteLocalRef(byteList);

RString* rstring = rwdata.rstring;

if ((capacity > rstring->capa) || (rstring->capa == 0)) {

rstring->capa = capacity;

rstring->ptr = (char *) realloc(rstring->ptr, rstring->capa + 1);

}

env->GetByteArrayRegion((jbyteArray) bytes, begin, length,

(jbyte *) rstring->ptr);

checkExceptions(env);

env->DeleteLocalRef(bytes);

rstring->ptr[rstring->len = length] = 0;

return true;

}

static VALUE

newString(const char* ptr, int len, int capacity = 0, bool tainted = false)

{

if (len < 0) {

rb_raise(rb_eArgError, "negative string size (or size too big)");

}

JLocalEnv env;

jbyteArray bytes = env->NewByteArray(capacity > len ? capacity : len);

checkExceptions(env);

if (len > 0 && ptr != NULL) {

env->SetByteArrayRegion(bytes, 0, len, (jbyte *) ptr);

checkExceptions(env);

}

jlong result = env->CallStaticLongMethod(JRuby_class, JRuby_newString, jruby::getRuntime(), bytes, (jint)len, (jboolean) tainted);

checkExceptions(env);

return (VALUE) result;

}

extern "C" VALUE

rb_str_new(const char *ptr, long len)

{

return newString(ptr, len);

}

#undef rb_str_new_cstr

extern "C" VALUE

rb_str_new_cstr(const char *ptr)

{

if (!ptr) {

rb_raise(rb_eArgError, "NULL pointer given");

}

return newString(ptr, ptr ? strlen(ptr) : 0);

}

#define STR_BUF_MIN_SIZE 1

extern "C" VALUE

rb_str_buf_new(long capacity)

{

capacity = MAX(capacity, STR_BUF_MIN_SIZE);

return newString(NULL, 0, MAX(capacity, STR_BUF_MIN_SIZE), false);

}

extern "C" VALUE

rb_str_dup(VALUE str)

{

return callMethod(str, "dup", 0, NULL);

}

extern "C" VALUE

rb_str_dup_frozen(VALUE str)

{

return rb_str_freeze(rb_str_dup(str));

}

extern "C" VALUE

rb_str_append(VALUE str, VALUE str2)

{

return callMethod(str, "<<", 1, str2);

}

extern "C" VALUE

rb_str_cat(VALUE str, const char *ptr, long len)

{

if (len < 0) {

rb_raise(rb_eArgError, "negative string size (or size too big)");

}

return rb_str_concat(str, rb_str_new(ptr, len));

}

#undef rb_str_cat2

extern "C" VALUE

rb_str_cat2(VALUE str, const char *ptr)

{

return rb_str_cat(str, ptr, ptr ? strlen(ptr) : 0);

}

extern "C" VALUE

rb_str_concat(VALUE str, VALUE other)

{

return callMethod(str, "concat", 1, other);

}

extern "C" VALUE

rb_str_plus(VALUE str1, VALUE str2)

{

return callMethod(str1, "+", 1, str2);

}

extern "C" VALUE

rb_str_buf_cat(VALUE str, const char *ptr, long len)

{

if (len == 0) return str;

if (len < 0) {

rb_raise(rb_eArgError, "negative string size (or size too big)");

}

return callMethod(str, "concat", 1, rb_str_new(ptr, len));

}

#undef rb_str_buf_cat2

VALUE

rb_str_buf_cat2(VALUE str, const char *ptr)

{

return rb_str_buf_cat(str, ptr, ptr ? strlen(ptr) : 0);

}

VALUE

rb_str_buf_append(VALUE str, VALUE str2)

{

return callMethod(str, "concat", 1, str2);

}

extern "C" int

rb_str_cmp(VALUE str1, VALUE str2)

{

return NUM2INT(callMethod(str1, "<=>", 1, str2));

}

extern "C" void

rb_str_update(VALUE str, long beg, long len, VALUE val)

{

callMethod(str, "[]=", 3, LONG2NUM(beg), LONG2NUM(len), val);

}

extern "C" VALUE

rb_str_inspect(VALUE str)

{

return callMethod(str, "inspect", 0);

}

extern "C" VALUE

rb_str_split(VALUE str, const char *sep)

{

return callMethod(str, "split", 1, rb_str_new2(sep));

}

extern "C" VALUE

rb_str2inum(VALUE str, int base)

{

return callMethod(str, "to_i", 1, INT2NUM(base));

}

extern "C" VALUE

rb_str_substr(VALUE str, long beg, long len)

{

return callMethod(str, "[]", 2, LONG2NUM(beg), LONG2NUM(len));

}

extern "C" VALUE

rb_tainted_str_new(const char* ptr, long len)

{

return newString(ptr, len, len, true);

}

#undef rb_tainted_str_new_cstr

extern "C" VALUE

rb_tainted_str_new_cstr(const char *ptr)

{

int len;

if (!ptr) {

rb_raise(rb_eArgError, "NULL pointer given");

}

len = strlen(ptr);

return newString(ptr, len, len, true);

}

extern "C" VALUE

rb_str_to_str(VALUE obj)

{

return rb_convert_type(obj, T_STRING, "String", "to_str");

}

extern "C" VALUE

rb_string_value(VALUE* ptr)

{

if (TYPE(*ptr) != T_STRING) {

*ptr = rb_str_to_str(*ptr);

}

return *ptr;

}

extern "C" char*

rb_string_value_ptr(VALUE* object_variable)

{

VALUE str = rb_string_value(object_variable);

return (char*) (RSTRING_PTR(str));

}

extern "C" char*

rb_string_value_cstr(VALUE* object_variable)

{

VALUE str = rb_string_value(object_variable);

long long str_size = NUM2LL(callMethod(str, "length", 0));

char* cstr = (char*) (RSTRING_PTR(str));

if ((unsigned int) str_size != strlen(cstr)) {

rb_raise(rb_eArgError, "string contains NULL byte");

}

return cstr;

}

extern "C" VALUE

rb_str_freeze(VALUE str)

{

return callMethodA(str, "freeze", 0, NULL);

}

extern "C" VALUE

rb_str_intern(VALUE str)

{

return callMethodA(str, "to_sym", 0, NULL);

}

extern "C" VALUE

rb_str_length(VALUE str)

{

return INT2NUM(jruby_str_length(str));

}

extern "C" VALUE

rb_String(VALUE obj)

{

return rb_convert_type(obj, T_STRING, "String", "to_s");

}

extern "C" VALUE

rb_check_string_type(VALUE val)

{

return rb_check_convert_type(val, 0, "String", "to_str");

}

extern "C" VALUE

rb_str_resize(VALUE str, long size) {

long length = (long) jruby_str_length(str);

if (size != length) {

JLocalEnv env;

env->CallVoidMethod(valueToObject(env, str), RubyString_resize_method, (jint)size);

checkExceptions(env);

jruby_rstring(str)->len = size;

}

return str;

}

extern "C" void

rb_str_set_len(VALUE str, long size) {

rb_str_resize(str, size);

}

static RubyString*

jruby_str(VALUE v)

{

if (TYPE(v) != T_STRING) {

rb_raise(rb_eTypeError, "wrong type (expected String)");

}

return (RubyString *) v;

}

extern "C" char*

jruby_str_cstr(VALUE v)

{

return jruby_str(v)->toRString(false)->ptr;

}

extern "C" char*

jruby_str_cstr_readonly(VALUE v)

{

return jruby_str(v)->toRString(true)->ptr;

}

extern "C" int

jruby_str_length(VALUE v)

{

return jruby_str(v)->length();

}

extern "C" struct RString*

jruby_rstring(VALUE v)

{

return jruby_str(v)->toRString(false);

}

extern "C" char*

rb_str2cstr(VALUE str, long* len)

{

char* cstr = RSTRING_PTR(str);

if (len) {

*len = RSTRING_LEN(str);

} else if ((unsigned int) RSTRING_LEN(str) != strlen(cstr)) {

rb_warn("string contains \\0 character");

}

return cstr;

}

jruby/cext/src/string.cpp at tmpdir-failure · MSNexploder/jruby · GitHub

Expand file tree

Breadcrumbs

string.cpp

Latest commit

History

Breadcrumbs

string.cpp

File metadata and controls