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| author | Tatsuo Ishii <ishii@postgresql.org> | 1999-05-09 15:00:18 +0000 |
|---|---|---|
| committer | Tatsuo Ishii <ishii@postgresql.org> | 1999-05-09 15:00:18 +0000 |
| commit | 6458daa180586f9e49e67cfa4136094d139da950 (patch) | |
| tree | c7d1adc667019977a49131b4bd24d4797d10339f | |
| parent | 202e523d102348b932693d52773b793250d172ae (diff) | |
| download | postgresql-6458daa180586f9e49e67cfa4136094d139da950.tar.gz postgresql-6458daa180586f9e49e67cfa4136094d139da950.zip | |
Running lo_read/lo_write under different memory context
cause troubles. See
Message-Id: <199905090312.MAA00466@ext16.sra.co.jp>
for more details.
| -rw-r--r-- | src/backend/libpq/be-fsstubs.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/src/backend/libpq/be-fsstubs.c b/src/backend/libpq/be-fsstubs.c index 2ac4db63309..dec9c7ad6a6 100644 --- a/src/backend/libpq/be-fsstubs.c +++ b/src/backend/libpq/be-fsstubs.c @@ -7,7 +7,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/libpq/be-fsstubs.c,v 1.30 1999/05/09 00:54:30 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/libpq/be-fsstubs.c,v 1.31 1999/05/09 15:00:18 ishii Exp $ * * NOTES * This should be moved to a more appropriate place. It is here @@ -131,6 +131,9 @@ lo_close(int fd) int lo_read(int fd, char *buf, int len) { + MemoryContext currentContext; + int status; + if (fd < 0 || fd >= MAX_LOBJ_FDS) { elog(ERROR, "lo_read: large obj descriptor (%d) out of range", fd); @@ -141,13 +144,20 @@ lo_read(int fd, char *buf, int len) elog(ERROR, "lo_read: invalid large obj descriptor (%d)", fd); return -3; } + currentContext = MemoryContextSwitchTo((MemoryContext) fscxt); + + status = inv_read(cookies[fd], buf, len); - return inv_read(cookies[fd], buf, len); + MemoryContextSwitchTo(currentContext); + return(status); } int lo_write(int fd, char *buf, int len) { + MemoryContext currentContext; + int status; + if (fd < 0 || fd >= MAX_LOBJ_FDS) { elog(ERROR, "lo_write: large obj descriptor (%d) out of range", fd); @@ -158,8 +168,12 @@ lo_write(int fd, char *buf, int len) elog(ERROR, "lo_write: invalid large obj descriptor (%d)", fd); return -3; } + currentContext = MemoryContextSwitchTo((MemoryContext) fscxt); + + status = inv_write(cookies[fd], buf, len); - return inv_write(cookies[fd], buf, len); + MemoryContextSwitchTo(currentContext); + return(status); } |