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Fix missing abort checks in pg_backup_directory.c.

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Parallel restore from directory format failed to respond to control-C
in a timely manner, because there were no checkAborting() calls in the
code path that reads data from a file and sends it to the backend.
If any worker was in the midst of restoring data for a large table,
you'd just have to wait.

This fix doesn't do anything for the problem of aborting a long-running
server-side command, but at least it fixes things for data transfers.

Back-patch to 9.3 where parallel restore was introduced.
This commit is contained in:
Tom Lane 2016-05-29 13:18:48 -04:00
parent 210981a4a9
commit 3c8aa6654a
1 changed files with 8 additions and 0 deletions

8
src/bin/pg_dump/pg_backup_directory.c

@ -406,7 +406,12 @@ _PrintFileData(ArchiveHandle *AH, char *filename)
buflen = ZLIB_OUT_SIZE; buflen = ZLIB_OUT_SIZE;
while ((cnt = cfread(buf, buflen, cfp))) while ((cnt = cfread(buf, buflen, cfp)))
{
/* Are we aborting? */
checkAborting(AH);
ahwrite(buf, 1, cnt, AH); ahwrite(buf, 1, cnt, AH);
}
free(buf); free(buf);
if (cfclose(cfp) !=0) if (cfclose(cfp) !=0)
@ -543,6 +548,9 @@ _ReadBuf(ArchiveHandle *AH, void *buf, size_t len)
{ {
lclContext *ctx = (lclContext *) AH->formatData; lclContext *ctx = (lclContext *) AH->formatData;
/* Are we aborting? */
checkAborting(AH);
/* /*
* If there was an I/O error, we already exited in cfread(), so here we * If there was an I/O error, we already exited in cfread(), so here we
* exit on short reads. * exit on short reads.