db/pgbackrest
1
0
Fork 0
mirror of https://github.com/pgbackrest/pgbackrest.git synced 2025-01-18 04:58:51 +02:00
Code Issues Releases Activity

Refactor IoRead handling in backupFile().

Browse Source 
Store the value of storageReadIo() rather than calling it each time. This is slightly more efficient, but more importantly it will be needed for an upcoming commit.
This commit is contained in:
David Steele 2023-08-23 12:56:49 -04:00
parent 82c12fed12
commit 1e6efd73e1
1 changed files with 19 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
src/command/backup/file.c
View File

@ -199,14 +199,16 @@ backupFile(
StorageRead *const read = storageNewReadP(
storagePg(), file->pgFile, .ignoreMissing = file->pgFileIgnoreMissing, .compressible = compressible,
.limit = file->pgFileCopyExactSize ? VARUINT64(file->pgFileSize) : NULL);
ioFilterGroupAdd(ioReadFilterGroup(storageReadIo(read)), cryptoHashNew(hashTypeSha1));
ioFilterGroupAdd(ioReadFilterGroup(storageReadIo(read)), ioSizeNew());
IoRead *const readIo = storageReadIo(read);
ioFilterGroupAdd(ioReadFilterGroup(readIo), cryptoHashNew(hashTypeSha1));
ioFilterGroupAdd(ioReadFilterGroup(readIo), ioSizeNew());
// Add page checksum filter
if (file->pgFileChecksumPage)
{
ioFilterGroupAdd(
ioReadFilterGroup(storageReadIo(read)),
ioReadFilterGroup(readIo),
pageChecksumNew(
segmentNumber(file->pgFile), PG_SEGMENT_PAGE_DEFAULT, file->pgFilePageHeaderCheck,
storagePathP(storagePg(), file->pgFile)));
@ -251,7 +253,7 @@ backupFile(
// Add block incremental filter
ioFilterGroupAdd(
ioReadFilterGroup(storageReadIo(read)),
ioReadFilterGroup(readIo),
blockIncrNew(
file->blockIncrSuperSize, file->blockIncrSize, file->blockIncrChecksumSize, blockIncrReference,
bundleId, bundleOffset, blockMap, compress, encrypt));
@ -264,27 +266,27 @@ backupFile(
// Add compress filter
if (compress != NULL)
{
ioFilterGroupAdd(ioReadFilterGroup(storageReadIo(read)), compress);
ioFilterGroupAdd(ioReadFilterGroup(readIo), compress);
repoChecksum = true;
}
// Add encrypt filter
if (encrypt != NULL)
{
ioFilterGroupAdd(ioReadFilterGroup(storageReadIo(read)), encrypt);
ioFilterGroupAdd(ioReadFilterGroup(readIo), encrypt);
repoChecksum = true;
}
}
// Capture checksum of file stored in the repo if filters that modify the output have been applied
if (repoChecksum)
ioFilterGroupAdd(ioReadFilterGroup(storageReadIo(read)), cryptoHashNew(hashTypeSha1));
ioFilterGroupAdd(ioReadFilterGroup(readIo), cryptoHashNew(hashTypeSha1));
// Add size filter last to calculate repo size
ioFilterGroupAdd(ioReadFilterGroup(storageReadIo(read)), ioSizeNew());
ioFilterGroupAdd(ioReadFilterGroup(readIo), ioSizeNew());
// Open the source and destination and copy the file
if (ioReadOpen(storageReadIo(read)))
if (ioReadOpen(readIo))
{
// Setup the repo file for write. There is no need to write the file atomically (e.g. via a temp file on
// Posix) because checksums are tested on resume after a failed backup. The path does not need to be synced
@ -303,42 +305,41 @@ backupFile(
}
// Copy data from source to destination
ioCopyP(storageReadIo(read), storageWriteIo(write));
ioCopyP(readIo, storageWriteIo(write));
// Close the source
ioReadClose(storageReadIo(read));
ioReadClose(readIo);
MEM_CONTEXT_BEGIN(lstMemContext(result))
{
// Get sizes and checksum
fileResult->copySize = pckReadU64P(
ioFilterGroupResultP(ioReadFilterGroup(storageReadIo(read)), SIZE_FILTER_TYPE, .idx = 0));
ioFilterGroupResultP(ioReadFilterGroup(readIo), SIZE_FILTER_TYPE, .idx = 0));
fileResult->bundleOffset = bundleOffset;
fileResult->copyChecksum = pckReadBinP(
ioFilterGroupResultP(ioReadFilterGroup(storageReadIo(read)), CRYPTO_HASH_FILTER_TYPE, .idx = 0));
ioFilterGroupResultP(ioReadFilterGroup(readIo), CRYPTO_HASH_FILTER_TYPE, .idx = 0));
fileResult->repoSize = pckReadU64P(
ioFilterGroupResultP(ioReadFilterGroup(storageReadIo(read)), SIZE_FILTER_TYPE, .idx = 1));
ioFilterGroupResultP(ioReadFilterGroup(readIo), SIZE_FILTER_TYPE, .idx = 1));
// Get results of page checksum validation
if (file->pgFileChecksumPage)
{
fileResult->pageChecksumResult = pckDup(
ioFilterGroupResultPackP(ioReadFilterGroup(storageReadIo(read)), PAGE_CHECKSUM_FILTER_TYPE));
ioFilterGroupResultPackP(ioReadFilterGroup(readIo), PAGE_CHECKSUM_FILTER_TYPE));
}
// Get results of block incremental
if (file->blockIncrSize != 0)
{
fileResult->blockIncrMapSize = pckReadU64P(
ioFilterGroupResultP(ioReadFilterGroup(storageReadIo(read)), BLOCK_INCR_FILTER_TYPE));
ioFilterGroupResultP(ioReadFilterGroup(readIo), BLOCK_INCR_FILTER_TYPE));
}
// Get repo checksum
if (repoChecksum)
{
fileResult->repoChecksum = pckReadBinP(
ioFilterGroupResultP(
ioReadFilterGroup(storageReadIo(read)), CRYPTO_HASH_FILTER_TYPE, .idx = 1));
ioFilterGroupResultP(ioReadFilterGroup(readIo), CRYPTO_HASH_FILTER_TYPE, .idx = 1));
}
}
MEM_CONTEXT_END();