Class: CBOR::Buffer

Inherits:
Object
  • Object
show all
Defined in:
ext/cbor/buffer_class.c

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ Object 



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
 
# File 'ext/cbor/buffer_class.c', line 126

static VALUE Buffer_initialize(int argc, VALUE* argv, VALUE self)
{
    VALUE io = Qnil;
    VALUE options = Qnil;

    if(argc == 0 || (argc == 1 && argv[0] == Qnil)) {
        /* Qnil */

    } else if(argc == 1) {
        VALUE v = argv[0];
        if(rb_type(v) == T_HASH) {
            options = v;
        } else {
            io = v;
        }

    } else if(argc == 2) {
        io = argv[0];
        options = argv[1];
        if(rb_type(options) != T_HASH) {
            rb_raise(rb_eArgError, "expected Hash but found %s.", rb_obj_classname(io));
        }

    } else {
        rb_raise(rb_eArgError, "wrong number of arguments (%d for 0..1)", argc);
    }

    BUFFER(self, b);

    MessagePack_Buffer_initialize(b, io, options);

    return self;
}

Instance Method Details

#<<(string_or_buffer) ⇒ Object 



196
197
198
199
200
201
202
203
204
205
206
 
# File 'ext/cbor/buffer_class.c', line 196

static VALUE Buffer_append(VALUE self, VALUE string_or_buffer)
{
    BUFFER(self, b);

    VALUE string = string_or_buffer;  // TODO optimize if string_or_buffer is a Buffer
    StringValue(string);

    msgpack_buffer_append_string(b, string);

    return self;
}

#clear ⇒ Object 



160
161
162
163
164
165
 
# File 'ext/cbor/buffer_class.c', line 160

static VALUE Buffer_clear(VALUE self)
{
    BUFFER(self, b);
    msgpack_buffer_clear(b);
    return Qnil;
}

#close ⇒ Object 



468
469
470
471
472
473
474
475
 
# File 'ext/cbor/buffer_class.c', line 468

static VALUE Buffer_close(VALUE self)
{
    BUFFER(self, b);
    if(b->io != Qnil) {
        return rb_funcall(b->io, s_close, 0);
    }
    return Qnil;
}

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


174
175
176
177
178
179
180
181
182
 
# File 'ext/cbor/buffer_class.c', line 174

static VALUE Buffer_empty_p(VALUE self)
{
    BUFFER(self, b);
    if(msgpack_buffer_top_readable_size(b) == 0) {
        return Qtrue;
    } else {
        return Qfalse;
    }
}

#flush ⇒ Object 



455
456
457
458
459
460
 
# File 'ext/cbor/buffer_class.c', line 455

static VALUE Buffer_flush(VALUE self)
{
    BUFFER(self, b);
    msgpack_buffer_flush(b);
    return self;
}

#io ⇒ Object 



462
463
464
465
466
 
# File 'ext/cbor/buffer_class.c', line 462

static VALUE Buffer_io(VALUE self)
{
    BUFFER(self, b);
    return b->io;
}

#read(*args) ⇒ Object 



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
 
# File 'ext/cbor/buffer_class.c', line 382

static VALUE Buffer_read(int argc, VALUE* argv, VALUE self)
{
    VALUE out = Qnil;
    unsigned long n = -1;
    bool all = false;

    switch(argc) {
    case 2:
        out = argv[1];
        /* pass through */
    case 1:
        n = FIX2ULONG(argv[0]);
        break;
    case 0:
        all = true;
        break;
    default:
        rb_raise(rb_eArgError, "wrong number of arguments (%d for 0..2)", argc);
    }

    BUFFER(self, b);

    if(out != Qnil) {
        CHECK_STRING_TYPE(out);
    }

    if(all) {
        return read_all(b, out);
    }

    if(n == 0) {
        /* do nothing */
        MAKE_EMPTY_STRING(out);
        return out;
    }

#ifndef DISABLE_BUFFER_READ_TO_S_OPTIMIZE
    if(!msgpack_buffer_has_io(b) && out == Qnil &&
            msgpack_buffer_all_readable_size(b) <= n) {
        /* same as to_s && clear; optimize */
        VALUE str = msgpack_buffer_all_as_string(b);
        msgpack_buffer_clear(b);

        if(RSTRING_LEN(str) == 0) {
            return Qnil;
        } else {
            return str;
        }
    }
#endif

    MAKE_EMPTY_STRING(out);
    read_until_eof(b, out, n);

    if(RSTRING_LEN(out) == 0) {
        return Qnil;
    } else {
        return out;
    }
}

#read_all(*args) ⇒ Object 



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
 
# File 'ext/cbor/buffer_class.c', line 336

static VALUE Buffer_read_all(int argc, VALUE* argv, VALUE self)
{
    VALUE out = Qnil;
    unsigned long n = 0;
    bool all = false;

    switch(argc) {
    case 2:
        out = argv[1];
        /* pass through */
    case 1:
        n = FIX2ULONG(argv[0]);
        break;
    case 0:
        all = true;
        break;
    default:
        rb_raise(rb_eArgError, "wrong number of arguments (%d for 0..2)", argc);
    }

    BUFFER(self, b);

    if(out != Qnil) {
        CHECK_STRING_TYPE(out);
    }

    if(all) {
        return read_all(b, out);
    }

    if(n == 0) {
        /* do nothing */
        MAKE_EMPTY_STRING(out);
        return out;
    }

    if(!msgpack_buffer_ensure_readable(b, n)) {
        rb_raise(rb_eEOFError, "end of buffer reached");
    }

    MAKE_EMPTY_STRING(out);
    msgpack_buffer_read_to_string_nonblock(b, out, n);

    return out;
}

#size ⇒ Object 



167
168
169
170
171
172
 
# File 'ext/cbor/buffer_class.c', line 167

static VALUE Buffer_size(VALUE self)
{
    BUFFER(self, b);
    size_t size = msgpack_buffer_all_readable_size(b);
    return SIZET2NUM(size);
}

#skip(sn) ⇒ Object 



301
302
303
304
305
306
307
308
309
310
311
312
313
314
 
# File 'ext/cbor/buffer_class.c', line 301

static VALUE Buffer_skip(VALUE self, VALUE sn)
{
    BUFFER(self, b);

    unsigned long n = FIX2ULONG(sn);

    /* do nothing */
    if(n == 0) {
        return ULONG2NUM(0);
    }

    size_t sz = read_until_eof(b, Qnil, n);
    return ULONG2NUM(sz);
}

#skip_all(sn) ⇒ Object 



316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
 
# File 'ext/cbor/buffer_class.c', line 316

static VALUE Buffer_skip_all(VALUE self, VALUE sn)
{
    BUFFER(self, b);

    unsigned long n = FIX2ULONG(sn);

    /* do nothing */
    if(n == 0) {
        return self;
    }

    if(!msgpack_buffer_ensure_readable(b, n)) {
        rb_raise(rb_eEOFError, "end of buffer reached");
    }

    msgpack_buffer_skip_nonblock(b, n);

    return self;
}

#to_a ⇒ Object 



449
450
451
452
453
 
# File 'ext/cbor/buffer_class.c', line 449

static VALUE Buffer_to_a(VALUE self)
{
    BUFFER(self, b);
    return msgpack_buffer_all_as_string_array(b);
}

#to_str ⇒ Object Also known as: to_s 



443
444
445
446
447
 
# File 'ext/cbor/buffer_class.c', line 443

static VALUE Buffer_to_str(VALUE self)
{
    BUFFER(self, b);
    return msgpack_buffer_all_as_string(b);
}

#write(string_or_buffer) ⇒ Object 



184
185
186
187
188
189
190
191
192
193
194
 
# File 'ext/cbor/buffer_class.c', line 184

static VALUE Buffer_write(VALUE self, VALUE string_or_buffer)
{
    BUFFER(self, b);

    VALUE string = string_or_buffer;  // TODO optimize if string_or_buffer is a Buffer
    StringValue(string);

    size_t length = msgpack_buffer_append_string(b, string);

    return SIZET2NUM(length);
}

#write_to(io) ⇒ Object 



477
478
479
480
481
482
 
# File 'ext/cbor/buffer_class.c', line 477

static VALUE Buffer_write_to(VALUE self, VALUE io)
{
    BUFFER(self, b);
    size_t sz = msgpack_buffer_flush_to_io(b, io, s_write, true);
    return ULONG2NUM(sz);
}