access/heap/hio.c

80 ReadBufferBI(Relation relation, BlockNumber targetBlock,
87 		return ReadBufferExtended(relation, MAIN_FORKNUM, targetBlock,
93 		if (BufferGetBlockNumber(bistate->current_buf) == targetBlock)
111 	buffer = ReadBufferExtended(relation, MAIN_FORKNUM, targetBlock,
334 	BlockNumber targetBlock,
377 		targetBlock = InvalidBlockNumber;
381 		targetBlock = BufferGetBlockNumber(bistate->current_buf);
383 		targetBlock = RelationGetTargetBlock(relation);
385 	if (targetBlock == InvalidBlockNumber && use_fsm)
391 		targetBlock = GetPageWithFreeSpace(relation, len + saveFreeSpace);
398 		if (targetBlock == InvalidBlockNumber)
403 				targetBlock = nblocks - 1;
408 	while (targetBlock != InvalidBlockNumber)
426 			buffer = ReadBufferBI(relation, targetBlock, RBM_NORMAL, bistate);
428 				visibilitymap_pin(relation, targetBlock, vmbuffer);
431 		else if (otherBlock == targetBlock)
436 				visibilitymap_pin(relation, targetBlock, vmbuffer);
439 		else if (otherBlock < targetBlock)
442 			buffer = ReadBuffer(relation, targetBlock);
444 				visibilitymap_pin(relation, targetBlock, vmbuffer);
451 			buffer = ReadBuffer(relation, targetBlock);
453 				visibilitymap_pin(relation, targetBlock, vmbuffer);
479 		if (otherBuffer == InvalidBuffer || targetBlock <= otherBlock)
481 								 targetBlock, otherBlock, vmbuffer,
485 								 otherBlock, targetBlock, vmbuffer_other,
510 			RelationSetTargetBlock(relation, targetBlock);
523 		else if (otherBlock != targetBlock)
537 		targetBlock = RecordAndGetPageWithFreeSpace(relation,
538 													targetBlock,
572 			targetBlock = GetPageWithFreeSpace(relation, len + saveFreeSpace);
578 			if (targetBlock != InvalidBlockNumber)
638 		targetBlock = BufferGetBlockNumber(buffer);
639 		Assert(targetBlock > otherBlock);
655 								 otherBlock, targetBlock, vmbuffer_other,