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Add const to BufFileWrite
Make data buffer argument to BufFileWrite a const pointer and bubble this up to various callers and related APIs. This makes the APIs clearer and more consistent. Discussion: https://www.postgresql.org/message-id/flat/11dda853-bb5b-59ba-a746-e168b1ce4bdb%40enterprisedb.com
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6 files changed

+12
-12
lines changed

6 files changed

+12
-12
lines changed

‎src/backend/access/gist/gistbuildbuffers.c

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -38,7 +38,7 @@ static long gistBuffersGetFreeBlock(GISTBuildBuffers *gfbb);
3838
static void gistBuffersReleaseBlock(GISTBuildBuffers *gfbb, long blocknum);
3939

4040
static void ReadTempFileBlock(BufFile *file, long blknum, void *ptr);
41-
static void WriteTempFileBlock(BufFile *file, long blknum, void *ptr);
41+
static void WriteTempFileBlock(BufFile *file, long blknum, const void *ptr);
4242

4343

4444
/*
@@ -764,7 +764,7 @@ ReadTempFileBlock(BufFile *file, long blknum, void *ptr)
764764
}
765765

766766
static void
767-
WriteTempFileBlock(BufFile *file, long blknum, void *ptr)
767+
WriteTempFileBlock(BufFile *file, long blknum, const void *ptr)
768768
{
769769
if (BufFileSeekBlock(file, blknum) != 0)
770770
elog(ERROR, "could not seek to block %ld in temporary file", blknum);

‎src/backend/backup/backup_manifest.c

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -21,7 +21,7 @@
2121
#include "utils/builtins.h"
2222
#include "utils/json.h"
2323

24-
static void AppendStringToManifest(backup_manifest_info *manifest, char *s);
24+
static void AppendStringToManifest(backup_manifest_info *manifest, const char *s);
2525

2626
/*
2727
* Does the user want a backup manifest?
@@ -385,7 +385,7 @@ SendBackupManifest(backup_manifest_info *manifest, bbsink *sink)
385385
* Append a cstring to the manifest.
386386
*/
387387
static void
388-
AppendStringToManifest(backup_manifest_info *manifest, char *s)
388+
AppendStringToManifest(backup_manifest_info *manifest, const char *s)
389389
{
390390
int len = strlen(s);
391391

‎src/backend/storage/file/buffile.c

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -622,7 +622,7 @@ BufFileRead(BufFile *file, void *ptr, size_t size)
622622
* ereport().
623623
*/
624624
void
625-
BufFileWrite(BufFile *file, void *ptr, size_t size)
625+
BufFileWrite(BufFile *file, const void *ptr, size_t size)
626626
{
627627
size_t nthistime;
628628

@@ -655,7 +655,7 @@ BufFileWrite(BufFile *file, void *ptr, size_t size)
655655
file->pos += nthistime;
656656
if (file->nbytes < file->pos)
657657
file->nbytes = file->pos;
658-
ptr = (char *) ptr + nthistime;
658+
ptr = (const char *) ptr + nthistime;
659659
size -= nthistime;
660660
}
661661
}

‎src/backend/utils/sort/logtape.c

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -220,7 +220,7 @@ struct LogicalTapeSet
220220
};
221221

222222
static LogicalTape *ltsCreateTape(LogicalTapeSet *lts);
223-
static void ltsWriteBlock(LogicalTapeSet *lts, long blocknum, void *buffer);
223+
static void ltsWriteBlock(LogicalTapeSet *lts, long blocknum, const void *buffer);
224224
static void ltsReadBlock(LogicalTapeSet *lts, long blocknum, void *buffer);
225225
static long ltsGetBlock(LogicalTapeSet *lts, LogicalTape *lt);
226226
static long ltsGetFreeBlock(LogicalTapeSet *lts);
@@ -235,7 +235,7 @@ static void ltsInitReadBuffer(LogicalTape *lt);
235235
* No need for an error return convention; we ereport() on any error.
236236
*/
237237
static void
238-
ltsWriteBlock(LogicalTapeSet *lts, long blocknum, void *buffer)
238+
ltsWriteBlock(LogicalTapeSet *lts, long blocknum, const void *buffer)
239239
{
240240
/*
241241
* BufFile does not support "holes", so if we're about to write a block
@@ -759,7 +759,7 @@ LogicalTapeSetForgetFreeSpace(LogicalTapeSet *lts)
759759
* There are no error returns; we ereport() on failure.
760760
*/
761761
void
762-
LogicalTapeWrite(LogicalTape *lt, void *ptr, size_t size)
762+
LogicalTapeWrite(LogicalTape *lt, const void *ptr, size_t size)
763763
{
764764
LogicalTapeSet *lts = lt->tapeSet;
765765
size_t nthistime;
@@ -826,7 +826,7 @@ LogicalTapeWrite(LogicalTape *lt, void *ptr, size_t size)
826826
lt->pos += nthistime;
827827
if (lt->nbytes < lt->pos)
828828
lt->nbytes = lt->pos;
829-
ptr = (char *) ptr + nthistime;
829+
ptr = (const char *) ptr + nthistime;
830830
size -= nthistime;
831831
}
832832
}

‎src/include/storage/buffile.h

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -39,7 +39,7 @@ typedef struct BufFile BufFile;
3939
extern BufFile *BufFileCreateTemp(bool interXact);
4040
extern void BufFileClose(BufFile *file);
4141
extern size_t BufFileRead(BufFile *file, void *ptr, size_t size);
42-
extern void BufFileWrite(BufFile *file, void *ptr, size_t size);
42+
extern void BufFileWrite(BufFile *file, const void *ptr, size_t size);
4343
extern int BufFileSeek(BufFile *file, int fileno, off_t offset, int whence);
4444
extern void BufFileTell(BufFile *file, int *fileno, off_t *offset);
4545
extern int BufFileSeekBlock(BufFile *file, long blknum);

‎src/include/utils/logtape.h

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -66,7 +66,7 @@ extern LogicalTape *LogicalTapeCreate(LogicalTapeSet *lts);
6666
extern LogicalTape *LogicalTapeImport(LogicalTapeSet *lts, int worker, TapeShare *shared);
6767
extern void LogicalTapeSetForgetFreeSpace(LogicalTapeSet *lts);
6868
extern size_t LogicalTapeRead(LogicalTape *lt, void *ptr, size_t size);
69-
extern void LogicalTapeWrite(LogicalTape *lt, void *ptr, size_t size);
69+
extern void LogicalTapeWrite(LogicalTape *lt, const void *ptr, size_t size);
7070
extern void LogicalTapeRewindForRead(LogicalTape *lt, size_t buffer_size);
7171
extern void LogicalTapeFreeze(LogicalTape *lt, TapeShare *share);
7272
extern size_t LogicalTapeBackspace(LogicalTape *lt, size_t size);

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