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fix restoring highly compressed WAL

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gzip surprisingly emits a lot of zeroes when compression ratio is high.
It triggered branch where FIO_PAGE_ZERO is emitted in agent but not handled
in fio_sned_file_gz properly.

Fix it.
This commit is contained in:
Yura Sokolov
2024-03-14 17:53:31 +03:00
parent e39a31e369
commit 63c281066d
1 changed files with 16 additions and 5 deletions
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21
src/utils/file.c
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@@ -2537,11 +2537,22 @@ fio_send_file_gz(const char *from_fullpath, FILE* out, char **errormsg)
exit_code = hdr.arg;
goto cleanup;
}
else if (hdr.cop == FIO_PAGE)
else if (hdr.cop == FIO_PAGE || hdr.cop == FIO_PAGE_ZERO)
{
int rc;
Assert(hdr.size <= CHUNK_SIZE);
IO_CHECK(fio_read_all(fio_stdin, in_buf, hdr.size), hdr.size);
unsigned size;
if (hdr.cop == FIO_PAGE)
{
Assert(hdr.size <= CHUNK_SIZE);
size = hdr.size;
IO_CHECK(fio_read_all(fio_stdin, in_buf, hdr.size), hdr.size);
}
else
{
Assert(hdr.arg <= CHUNK_SIZE);
size = hdr.arg;
memset(in_buf, 0, hdr.arg);
}
/* We have received a chunk of compressed data, lets decompress it */
if (strm == NULL)
@@ -2552,7 +2563,7 @@ fio_send_file_gz(const char *from_fullpath, FILE* out, char **errormsg)
/* The fields next_in, avail_in initialized before init */
strm->next_in = (Bytef *)in_buf;
strm->avail_in = hdr.size;
strm->avail_in = size;
rc = inflateInit2(strm, 15 + 16);
@@ -2569,7 +2580,7 @@ fio_send_file_gz(const char *from_fullpath, FILE* out, char **errormsg)
else
{
strm->next_in = (Bytef *)in_buf;
strm->avail_in = hdr.size;
strm->avail_in = size;
}
strm->next_out = (Bytef *)out_buf; /* output buffer */