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authorTom Lane <tgl@sss.pgh.pa.us>2021-10-22 16:43:38 -0400
committerTom Lane <tgl@sss.pgh.pa.us>2021-10-22 16:43:38 -0400
commit2e01d050d989d67f491349018a09574427d1d0ba (patch)
treeb5455bc753b6918bdf4482218ffe3afb9a7de3e7
parent476006023538730d2291125b883bfe07d03f3dfa (diff)
Fix frontend version of sh_error() in simplehash.h.
The code does not expect sh_error() to return, but the patch that made this header usable in frontend didn't get that memo. While here, plaster unlikely() on the tests that decide whether to invoke sh_error(), and add our standard copyright notice. Noted by Andres Freund. Back-patch to v13 where this frontend support came in. Discussion: https://postgr.es/m/0D54435C-1199-4361-9D74-2FBDCF8EA164@anarazel.de
-rw-r--r--src/include/lib/simplehash.h14
1 files changed, 9 insertions, 5 deletions
diff --git a/src/include/lib/simplehash.h b/src/include/lib/simplehash.h
index 3d3273a6bbb..e70d5a3714f 100644
--- a/src/include/lib/simplehash.h
+++ b/src/include/lib/simplehash.h
@@ -55,6 +55,11 @@
* presence is relevant to determine whether a lookup needs to continue
* looking or is done - buckets following a deleted element are shifted
* backwards, unless they're empty or already at their optimal position.
+ *
+ * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/lib/simplehash.h
*/
#include "port/pg_bitutils.h"
@@ -218,7 +223,8 @@ SH_SCOPE void SH_STAT(SH_TYPE * tb);
#define SIMPLEHASH_H
#ifdef FRONTEND
-#define sh_error(...) pg_log_error(__VA_ARGS__)
+#define sh_error(...) \
+ do { pg_log_fatal(__VA_ARGS__); exit(1); } while(0)
#define sh_log(...) pg_log_info(__VA_ARGS__)
#else
#define sh_error(...) elog(ERROR, __VA_ARGS__)
@@ -247,7 +253,7 @@ SH_COMPUTE_PARAMETERS(SH_TYPE * tb, uint64 newsize)
* Verify that allocation of ->data is possible on this platform, without
* overflowing Size.
*/
- if ((((uint64) sizeof(SH_ELEMENT_TYPE)) * size) >= SIZE_MAX / 2)
+ if (unlikely((((uint64) sizeof(SH_ELEMENT_TYPE)) * size) >= SIZE_MAX / 2))
sh_error("hash table too large");
/* now set size */
@@ -532,10 +538,8 @@ restart:
*/
if (unlikely(tb->members >= tb->grow_threshold))
{
- if (tb->size == SH_MAX_SIZE)
- {
+ if (unlikely(tb->size == SH_MAX_SIZE))
sh_error("hash table size exceeded");
- }
/*
* When optimizing, it can be very useful to print these out.