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Add const to BufFileWrite

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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
This commit is contained in:
Peter Eisentraut
2022-12-30 10:02:59 +01:00
parent 5f2f99c9c6
commit faf3750657
6 changed files with 12 additions and 12 deletions
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4
src/backend/storage/file/buffile.c
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@@ -622,7 +622,7 @@ BufFileRead(BufFile *file, void *ptr, size_t size)
* ereport().
*/
void
BufFileWrite(BufFile *file, void *ptr, size_t size)
BufFileWrite(BufFile *file, const void *ptr, size_t size)
{
size_t nthistime;
@@ -655,7 +655,7 @@ BufFileWrite(BufFile *file, void *ptr, size_t size)
file->pos += nthistime;
if (file->nbytes < file->pos)
file->nbytes = file->pos;
ptr = (char *) ptr + nthistime;
ptr = (const char *) ptr + nthistime;
size -= nthistime;
}
}