postgres.git / summary / log / commit / refs

commit    57b2e1049e7fdb0ca7882c74520e409507462eb2
Author:   Andres Freund <andres@anarazel.de>
Date:     Wed Nov 12 17:52:49 2014 +0000
First released in: 9.5.0, 9.4.0

    Add interrupt checks to contrib/pg_prewarm.
    
    Currently the extension's pg_prewarm() function didn't check
    interrupts once it started "warming" data. Since individual calls can
    take a long while it's important for them to be interruptible.
    
    Backpatch to 9.4 where pg_prewarm was introduced.


 contrib/pg_prewarm/pg_prewarm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/contrib/pg_prewarm/pg_prewarm.c b/contrib/pg_prewarm/pg_prewarm.c
index df20e888eff..32c724e5ce2 100644
--- a/contrib/pg_prewarm/pg_prewarm.c
+++ b/contrib/pg_prewarm/pg_prewarm.c
@@ -159,6 +159,7 @@ pg_prewarm(PG_FUNCTION_ARGS)
 		 */
 		for (block = first_block; block <= last_block; ++block)
 		{
+			CHECK_FOR_INTERRUPTS();
 			PrefetchBuffer(rel, forkNumber, block);
 			++blocks_done;
 		}
@@ -177,6 +178,7 @@ pg_prewarm(PG_FUNCTION_ARGS)
 		 */
 		for (block = first_block; block <= last_block; ++block)
 		{
+			CHECK_FOR_INTERRUPTS();
 			smgrread(rel->rd_smgr, forkNumber, block, blockbuffer);
 			++blocks_done;
 		}
@@ -190,6 +192,7 @@ pg_prewarm(PG_FUNCTION_ARGS)
 		{
 			Buffer		buf;
 
+			CHECK_FOR_INTERRUPTS();
 			buf = ReadBufferExtended(rel, forkNumber, block, RBM_NORMAL, NULL);
 			ReleaseBuffer(buf);
 			++blocks_done;


[parent: c4d360d18259]