23 typedef struct buffer buffer_type;
25 struct buffer  struct
55 buffer_invariant(buffer_type *ATTR_UNUSED(buffer))  in buffer_invariant()  argument
60 buffer_invariant(buffer_type *buffer)  in buffer_invariant()  argument
62 	assert(buffer);  in buffer_invariant()
63 	assert(buffer->_position <= buffer->_limit);  in buffer_invariant()
64 	assert(buffer->_limit <= buffer->_capacity);  in buffer_invariant()
65 	assert(buffer->_data);  in buffer_invariant()
79 void buffer_create_from(buffer_type *buffer, void *data, size_t size);
85 void buffer_clear(buffer_type *buffer);
92 void buffer_flip(buffer_type *buffer);
98 void buffer_rewind(buffer_type *buffer);
101 buffer_position(buffer_type *buffer)  in buffer_position()  argument
103 	return buffer->_position;  in buffer_position()
111 buffer_set_position(buffer_type *buffer, size_t mark)  in buffer_set_position()  argument
113 	assert(mark <= buffer->_limit);  in buffer_set_position()
114 	buffer->_position = mark;  in buffer_set_position()
123 buffer_skip(buffer_type *buffer, ssize_t count)  in buffer_skip()  argument
125 	assert(buffer->_position + count <= buffer->_limit);  in buffer_skip()
126 	buffer->_position += count;  in buffer_skip()
130 buffer_limit(buffer_type *buffer)  in buffer_limit()  argument
132 	return buffer->_limit;  in buffer_limit()
140 buffer_set_limit(buffer_type *buffer, size_t limit)  in buffer_set_limit()  argument
142 	assert(limit <= buffer->_capacity);  in buffer_set_limit()
143 	buffer->_limit = limit;  in buffer_set_limit()
144 	if (buffer->_position > buffer->_limit)  in buffer_set_limit()
145 		buffer->_position = buffer->_limit;  in buffer_set_limit()
150 buffer_capacity(buffer_type *buffer)  in buffer_capacity()  argument
152 	return buffer->_capacity;  in buffer_capacity()
160 void buffer_set_capacity(buffer_type *buffer, size_t capacity);
169 void buffer_reserve(buffer_type *buffer, size_t amount);
175 buffer_at(buffer_type *buffer, size_t at)  in buffer_at()  argument
177 	assert(at <= buffer->_limit);  in buffer_at()
178 	return buffer->_data + at;  in buffer_at()
186 buffer_begin(buffer_type *buffer)  in buffer_begin()  argument
188 	return buffer_at(buffer, 0);  in buffer_begin()
196 buffer_end(buffer_type *buffer)  in buffer_end()  argument
198 	return buffer_at(buffer, buffer->_limit);  in buffer_end()
205 buffer_current(buffer_type *buffer)  in buffer_current()  argument
207 	return buffer_at(buffer, buffer->_position);  in buffer_current()
215 buffer_remaining_at(buffer_type *buffer, size_t at)  in buffer_remaining_at()  argument
217 	buffer_invariant(buffer);  in buffer_remaining_at()
218 	assert(at <= buffer->_limit);  in buffer_remaining_at()
219 	return buffer->_limit - at;  in buffer_remaining_at()
227 buffer_remaining(buffer_type *buffer)  in buffer_remaining()  argument
229 	return buffer_remaining_at(buffer, buffer->_position);  in buffer_remaining()
238 buffer_available_at(buffer_type *buffer, size_t at, size_t count)  in buffer_available_at()  argument
240 	return count <= buffer_remaining_at(buffer, at);  in buffer_available_at()
244 buffer_available(buffer_type *buffer, size_t count)  in buffer_available()  argument
246 	return buffer_available_at(buffer, buffer->_position, count);  in buffer_available()
250 buffer_write_at(buffer_type *buffer, size_t at, const void *data, size_t count)  in buffer_write_at()  argument
252 	assert(buffer_available_at(buffer, at, count));  in buffer_write_at()
253 	memcpy(buffer->_data + at, data, count);  in buffer_write_at()
257 buffer_write(buffer_type *buffer, const void *data, size_t count)  in buffer_write()  argument
259 	buffer_write_at(buffer, buffer->_position, data, count);  in buffer_write()
260 	buffer->_position += count;  in buffer_write()
264 try_buffer_write_at(buffer_type *buffer, size_t at, const void *data, size_t count)  in try_buffer_write_at()  argument
266 	if(!buffer_available_at(buffer, at, count))  in try_buffer_write_at()
268 	memcpy(buffer->_data + at, data, count);  in try_buffer_write_at()
273 try_buffer_write(buffer_type *buffer, const void *data, size_t count)  in try_buffer_write()  argument
275 	if(!try_buffer_write_at(buffer, buffer->_position, data, count))  in try_buffer_write()
277 	buffer->_position += count;  in try_buffer_write()
282 buffer_write_string_at(buffer_type *buffer, size_t at, const char *str)  in buffer_write_string_at()  argument
284 	buffer_write_at(buffer, at, str, strlen(str));  in buffer_write_string_at()
288 buffer_write_string(buffer_type *buffer, const char *str)  in buffer_write_string()  argument
290 	buffer_write(buffer, str, strlen(str));  in buffer_write_string()
294 try_buffer_write_string_at(buffer_type *buffer, size_t at, const char *str)  in try_buffer_write_string_at()  argument
296 	return try_buffer_write_at(buffer, at, str, strlen(str));  in try_buffer_write_string_at()
300 try_buffer_write_string(buffer_type *buffer, const char *str)  in try_buffer_write_string()  argument
302 	return try_buffer_write(buffer, str, strlen(str));  in try_buffer_write_string()
306 buffer_write_u8_at(buffer_type *buffer, size_t at, uint8_t data)  in buffer_write_u8_at()  argument
308 	assert(buffer_available_at(buffer, at, sizeof(data)));  in buffer_write_u8_at()
309 	buffer->_data[at] = data;  in buffer_write_u8_at()
313 buffer_write_u8(buffer_type *buffer, uint8_t data)  in buffer_write_u8()  argument
315 	buffer_write_u8_at(buffer, buffer->_position, data);  in buffer_write_u8()
316 	buffer->_position += sizeof(data);  in buffer_write_u8()
320 buffer_write_u16_at(buffer_type *buffer, size_t at, uint16_t data)  in buffer_write_u16_at()  argument
322 	assert(buffer_available_at(buffer, at, sizeof(data)));  in buffer_write_u16_at()
323 	write_uint16(buffer->_data + at, data);  in buffer_write_u16_at()
327 buffer_write_u16(buffer_type *buffer, uint16_t data)  in buffer_write_u16()  argument
329 	buffer_write_u16_at(buffer, buffer->_position, data);  in buffer_write_u16()
330 	buffer->_position += sizeof(data);  in buffer_write_u16()
334 buffer_write_u32_at(buffer_type *buffer, size_t at, uint32_t data)  in buffer_write_u32_at()  argument
336 	assert(buffer_available_at(buffer, at, sizeof(data)));  in buffer_write_u32_at()
337 	write_uint32(buffer->_data + at, data);  in buffer_write_u32_at()
341 buffer_write_u32(buffer_type *buffer, uint32_t data)  in buffer_write_u32()  argument
343 	buffer_write_u32_at(buffer, buffer->_position, data);  in buffer_write_u32()
344 	buffer->_position += sizeof(data);  in buffer_write_u32()
348 buffer_write_u64_at(buffer_type *buffer, size_t at, uint64_t data)  in buffer_write_u64_at()  argument
350 	assert(buffer_available_at(buffer, at, sizeof(data)));  in buffer_write_u64_at()
351 	write_uint64(buffer->_data + at, data);  in buffer_write_u64_at()
355 buffer_write_u64(buffer_type *buffer, uint64_t data)  in buffer_write_u64()  argument
357 	buffer_write_u64_at(buffer, buffer->_position, data);  in buffer_write_u64()
358 	buffer->_position += sizeof(data);  in buffer_write_u64()
362 try_buffer_write_u8_at(buffer_type *buffer, size_t at, uint8_t data)  in try_buffer_write_u8_at()  argument
364 	if(!buffer_available_at(buffer, at, sizeof(data)))  in try_buffer_write_u8_at()
366 	buffer->_data[at] = data;  in try_buffer_write_u8_at()
371 try_buffer_write_u8(buffer_type *buffer, uint8_t data)  in try_buffer_write_u8()  argument
373 	if(!try_buffer_write_u8_at(buffer, buffer->_position, data))  in try_buffer_write_u8()
375 	buffer->_position += sizeof(data);  in try_buffer_write_u8()
380 try_buffer_write_u16_at(buffer_type *buffer, size_t at, uint16_t data)  in try_buffer_write_u16_at()  argument
382 	if(!buffer_available_at(buffer, at, sizeof(data)))  in try_buffer_write_u16_at()
384 	write_uint16(buffer->_data + at, data);  in try_buffer_write_u16_at()
389 try_buffer_write_u16(buffer_type *buffer, uint16_t data)  in try_buffer_write_u16()  argument
391 	if(!try_buffer_write_u16_at(buffer, buffer->_position, data))  in try_buffer_write_u16()
393 	buffer->_position += sizeof(data);  in try_buffer_write_u16()
398 try_buffer_write_u32_at(buffer_type *buffer, size_t at, uint32_t data)  in try_buffer_write_u32_at()  argument
400 	if(!buffer_available_at(buffer, at, sizeof(data)))  in try_buffer_write_u32_at()
402 	write_uint32(buffer->_data + at, data);  in try_buffer_write_u32_at()
407 try_buffer_write_u32(buffer_type *buffer, uint32_t data)  in try_buffer_write_u32()  argument
409 	if(!try_buffer_write_u32_at(buffer, buffer->_position, data))  in try_buffer_write_u32()
411 	buffer->_position += sizeof(data);  in try_buffer_write_u32()
416 try_buffer_write_u64_at(buffer_type *buffer, size_t at, uint64_t data)  in try_buffer_write_u64_at()  argument
418 	if(!buffer_available_at(buffer, at, sizeof(data)))  in try_buffer_write_u64_at()
420 	write_uint64(buffer->_data + at, data);  in try_buffer_write_u64_at()
425 try_buffer_write_u64(buffer_type *buffer, uint64_t data)  in try_buffer_write_u64()  argument
427 	if(!try_buffer_write_u64_at(buffer, buffer->_position, data))  in try_buffer_write_u64()
429 	buffer->_position += sizeof(data);  in try_buffer_write_u64()
434 buffer_read_at(buffer_type *buffer, size_t at, void *data, size_t count)  in buffer_read_at()  argument
436 	assert(buffer_available_at(buffer, at, count));  in buffer_read_at()
437 	memcpy(data, buffer->_data + at, count);  in buffer_read_at()
441 buffer_read(buffer_type *buffer, void *data, size_t count)  in buffer_read()  argument
443 	buffer_read_at(buffer, buffer->_position, data, count);  in buffer_read()
444 	buffer->_position += count;  in buffer_read()
448 buffer_read_u8_at(buffer_type *buffer, size_t at)  in buffer_read_u8_at()  argument
450 	assert(buffer_available_at(buffer, at, sizeof(uint8_t)));  in buffer_read_u8_at()
451 	return buffer->_data[at];  in buffer_read_u8_at()
455 buffer_read_u8(buffer_type *buffer)  in buffer_read_u8()  argument
457 	uint8_t result = buffer_read_u8_at(buffer, buffer->_position);  in buffer_read_u8()
458 	buffer->_position += sizeof(uint8_t);  in buffer_read_u8()
463 buffer_read_u16_at(buffer_type *buffer, size_t at)  in buffer_read_u16_at()  argument
465 	assert(buffer_available_at(buffer, at, sizeof(uint16_t)));  in buffer_read_u16_at()
466 	return read_uint16(buffer->_data + at);  in buffer_read_u16_at()
470 buffer_read_u16(buffer_type *buffer)  in buffer_read_u16()  argument
472 	uint16_t result = buffer_read_u16_at(buffer, buffer->_position);  in buffer_read_u16()
473 	buffer->_position += sizeof(uint16_t);  in buffer_read_u16()
478 buffer_read_u32_at(buffer_type *buffer, size_t at)  in buffer_read_u32_at()  argument
480 	assert(buffer_available_at(buffer, at, sizeof(uint32_t)));  in buffer_read_u32_at()
481 	return read_uint32(buffer->_data + at);  in buffer_read_u32_at()
485 buffer_read_u32(buffer_type *buffer)  in buffer_read_u32()  argument
487 	uint32_t result = buffer_read_u32_at(buffer, buffer->_position);  in buffer_read_u32()
488 	buffer->_position += sizeof(uint32_t);  in buffer_read_u32()
493 buffer_read_u64_at(buffer_type *buffer, size_t at)  in buffer_read_u64_at()  argument
495 	assert(buffer_available_at(buffer, at, sizeof(uint64_t)));  in buffer_read_u64_at()
496 	return read_uint64(buffer->_data + at);  in buffer_read_u64_at()
500 buffer_read_u64(buffer_type *buffer)  in buffer_read_u64()  argument
502 	uint64_t result = buffer_read_u64_at(buffer, buffer->_position);  in buffer_read_u64()
503 	buffer->_position += sizeof(uint64_t);  in buffer_read_u64()
513 int buffer_printf(buffer_type *buffer, const char *format, ...)