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help / color / mirror / Atom feedFrom: Kyotaro Horiguchi <[email protected]>
Subject: [PATCH 3/3] Rename smgrDoPendingDeletes to smgrDoPendingOperations
Date: Wed, 29 May 2019 23:03:22 +0900
The function longer does only deletions but also syncs. Rename the
function to refect that. smgrGetPendingDeletes is not renamed since it
does not change behavior.
---
src/backend/access/transam/xact.c | 4 +--
src/backend/catalog/storage.c | 57 ++++++++++++++++++++-------------------
src/include/catalog/storage.h | 2 +-
3 files changed, 32 insertions(+), 31 deletions(-)
diff --git a/src/backend/access/transam/xact.c b/src/backend/access/transam/xact.c
index d7930c077d..cc0c43b2dd 100644
--- a/src/backend/access/transam/xact.c
+++ b/src/backend/access/transam/xact.c
@@ -2228,7 +2228,7 @@ CommitTransaction(void)
* Other backends will observe the attendant catalog changes and not
* attempt to access affected files.
*/
- smgrDoPendingDeletes(true);
+ smgrDoPendingOperations(true);
AtCommit_Notify();
AtEOXact_GUC(true, 1);
@@ -2716,7 +2716,7 @@ AbortTransaction(void)
ResourceOwnerRelease(TopTransactionResourceOwner,
RESOURCE_RELEASE_AFTER_LOCKS,
false, true);
- smgrDoPendingDeletes(false);
+ smgrDoPendingOperations(false);
AtEOXact_GUC(false, 1);
AtEOXact_SPI(false);
diff --git a/src/backend/catalog/storage.c b/src/backend/catalog/storage.c
index e4bcdc390f..6ebe75aa37 100644
--- a/src/backend/catalog/storage.c
+++ b/src/backend/catalog/storage.c
@@ -53,17 +53,17 @@
* but I'm being paranoid.
*/
-typedef struct PendingRelDelete
+typedef struct PendingRelOps
{
RelFileNode relnode; /* relation that may need to be deleted */
BackendId backend; /* InvalidBackendId if not a temp rel */
bool atCommit; /* T=work at commit; F=work at abort */
bool dosync; /* T=work is sync; F=work is delete */
int nestLevel; /* xact nesting level of request */
- struct PendingRelDelete *next; /* linked-list link */
-} PendingRelDelete;
+ struct PendingRelOps *next; /* linked-list link */
+} PendingRelOps;
-static PendingRelDelete *pendingDeletes = NULL; /* head of linked list */
+static PendingRelOps *pendingDeletes = NULL; /* head of linked list */
/*
* RelationCreateStorage
@@ -79,7 +79,7 @@ static PendingRelDelete *pendingDeletes = NULL; /* head of linked list */
SMgrRelation
RelationCreateStorage(RelFileNode rnode, char relpersistence)
{
- PendingRelDelete *pending;
+ PendingRelOps *pending;
SMgrRelation srel;
BackendId backend;
bool needs_wal;
@@ -110,8 +110,8 @@ RelationCreateStorage(RelFileNode rnode, char relpersistence)
log_smgrcreate(&srel->smgr_rnode.node, MAIN_FORKNUM);
/* Add the relation to the list of stuff to delete at abort */
- pending = (PendingRelDelete *)
- MemoryContextAlloc(TopMemoryContext, sizeof(PendingRelDelete));
+ pending = (PendingRelOps *)
+ MemoryContextAlloc(TopMemoryContext, sizeof(PendingRelOps));
pending->relnode = rnode;
pending->backend = backend;
pending->atCommit = false; /* delete if abort */
@@ -127,8 +127,8 @@ RelationCreateStorage(RelFileNode rnode, char relpersistence)
*/
if (relpersistence == RELPERSISTENCE_PERMANENT && !XLogIsNeeded())
{
- pending = (PendingRelDelete *)
- MemoryContextAlloc(TopMemoryContext, sizeof(PendingRelDelete));
+ pending = (PendingRelOps *)
+ MemoryContextAlloc(TopMemoryContext, sizeof(PendingRelOps));
pending->relnode = rnode;
pending->backend = backend;
pending->atCommit = true;
@@ -167,11 +167,11 @@ log_smgrcreate(const RelFileNode *rnode, ForkNumber forkNum)
void
RelationDropStorage(Relation rel)
{
- PendingRelDelete *pending;
+ PendingRelOps *pending;
/* Add the relation to the list of stuff to delete at commit */
- pending = (PendingRelDelete *)
- MemoryContextAlloc(TopMemoryContext, sizeof(PendingRelDelete));
+ pending = (PendingRelOps *)
+ MemoryContextAlloc(TopMemoryContext, sizeof(PendingRelOps));
pending->relnode = rel->rd_node;
pending->backend = rel->rd_backend;
pending->atCommit = true; /* delete if commit */
@@ -185,9 +185,9 @@ RelationDropStorage(Relation rel)
* present in the pending-delete list twice, once with atCommit true and
* once with atCommit false. Hence, it will be physically deleted at end
* of xact in either case (and the other entry will be ignored by
- * smgrDoPendingDeletes, so no error will occur). We could instead remove
- * the existing list entry and delete the physical file immediately, but
- * for now I'll keep the logic simple.
+ * smgrDoPendingOperations, so no error will occur). We could instead
+ * remove the existing list entry and delete the physical file
+ * immediately, but for now I'll keep the logic simple.
*/
RelationCloseSmgr(rel);
@@ -213,9 +213,9 @@ RelationDropStorage(Relation rel)
void
RelationPreserveStorage(RelFileNode rnode, bool atCommit)
{
- PendingRelDelete *pending;
- PendingRelDelete *prev;
- PendingRelDelete *next;
+ PendingRelOps *pending;
+ PendingRelOps *prev;
+ PendingRelOps *next;
prev = NULL;
for (pending = pendingDeletes; pending != NULL; pending = next)
@@ -406,7 +406,8 @@ RelationCopyStorage(SMgrRelation src, SMgrRelation dst,
}
/*
- * smgrDoPendingDeletes() -- Take care of relation deletes at end of xact.
+ * smgrDoPendingOperations() -- Take care of relation deletes and syncs at
+ * end of xact.
*
* This also runs when aborting a subxact; we want to clean up a failed
* subxact immediately.
@@ -417,12 +418,12 @@ RelationCopyStorage(SMgrRelation src, SMgrRelation dst,
* already recovered the physical storage.
*/
void
-smgrDoPendingDeletes(bool isCommit)
+smgrDoPendingOperations(bool isCommit)
{
int nestLevel = GetCurrentTransactionNestLevel();
- PendingRelDelete *pending;
- PendingRelDelete *prev;
- PendingRelDelete *next;
+ PendingRelOps *pending;
+ PendingRelOps *prev;
+ PendingRelOps *next;
int nrels = 0,
i = 0,
maxrels = 0;
@@ -518,7 +519,7 @@ smgrGetPendingDeletes(bool forCommit, RelFileNode **ptr)
int nestLevel = GetCurrentTransactionNestLevel();
int nrels;
RelFileNode *rptr;
- PendingRelDelete *pending;
+ PendingRelOps *pending;
nrels = 0;
for (pending = pendingDeletes; pending != NULL; pending = pending->next)
@@ -558,8 +559,8 @@ smgrGetPendingDeletes(bool forCommit, RelFileNode **ptr)
void
PostPrepare_smgr(void)
{
- PendingRelDelete *pending;
- PendingRelDelete *next;
+ PendingRelOps *pending;
+ PendingRelOps *next;
for (pending = pendingDeletes; pending != NULL; pending = next)
{
@@ -580,7 +581,7 @@ void
AtSubCommit_smgr(void)
{
int nestLevel = GetCurrentTransactionNestLevel();
- PendingRelDelete *pending;
+ PendingRelOps *pending;
for (pending = pendingDeletes; pending != NULL; pending = pending->next)
{
@@ -599,7 +600,7 @@ AtSubCommit_smgr(void)
void
AtSubAbort_smgr(void)
{
- smgrDoPendingDeletes(false);
+ smgrDoPendingOperations(false);
}
void
diff --git a/src/include/catalog/storage.h b/src/include/catalog/storage.h
index 3579d3f3eb..43836cf11c 100644
--- a/src/include/catalog/storage.h
+++ b/src/include/catalog/storage.h
@@ -30,7 +30,7 @@ extern void RelationCopyStorage(SMgrRelation src, SMgrRelation dst,
* These functions used to be in storage/smgr/smgr.c, which explains the
* naming
*/
-extern void smgrDoPendingDeletes(bool isCommit);
+extern void smgrDoPendingOperations(bool isCommit);
extern int smgrGetPendingDeletes(bool forCommit, RelFileNode **ptr);
extern void AtSubCommit_smgr(void);
extern void AtSubAbort_smgr(void);
--
2.16.3
----Next_Part(Wed_Jul_10_13_19_14_2019_952)----
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