network/stack/net_buffer.cpp

82 	uint16			used;		// defines how much memory is used by this node
123 			uint16 space = used + header->tail_space;
622 		dprintf("  node %p, offset %lu, used %u, header %u, tail %u, "
623 			"header %p\n", node, node->offset, node->used, node->HeaderSpace(),
630 		dump_block((char*)node->start, min_c(node->used, 64), "    ");
683 		size += node->used;
956 	node->used = 0;
995 	// Move all used and tail space to the header space, which is useful in case
1016 	while (node != NULL && node->offset + node->used <= offset)
1048 		if (append_data(dest, node->start, node->used) < B_OK) {
1056 	int32 diff = node->offset + node->used - size;
1057 	if (append_data(dest, node->start, node->used - diff) < B_OK) {
1195 		if (append_data(duplicate, node->start, node->used) < B_OK) {
1281 		node->used = sourceNode->used;
1286 			// has to be used carefully
1421 			with->size -= node->used;
1442 		buffer->size += node->used;
1485 		size_t written = min_c(size, node->used - offset);
1532 		size_t bytesRead = min_c(size, node->used - offset);
1612 			node->used += willConsume;
1624 			offset += node->used;
1633 		node->used += size;
1708 		node->used += previousTailSpace;
1718 				// last data_header and not all available space is used
1735 			node->used = sizeUsed;
1764 		*_contiguousBuffer = node->start + node->used;
1766 	node->used += size;
1782 	size_t used = buffer->size;
1796 		write_data(buffer, used, data, size);
1832 		if (node->used > left)
1837 		left -= node->used;
1846 		size_t cut = min_c(node->used, left);
1853 		node->used -= cut;
1910 	int32 diff = node->used + node->offset - newSize;
1912 	node->used -= diff;
1914 	if (node->used > 0)
1980 		clone->used = min_c(bytes, node->used - offset);
1991 		bytes -= clone->used;
1992 		buffer->size += clone->used;
1993 		sizeAppended += clone->used;
2203 	if (size > node->used - offset)
2232 		size_t bytes = min_c(size, node->used - offset);
2269 		if (node->used > 0) {
2271 			iovecs[count].iov_len = node->used;
2290 		if (node->used > 0)