diff options
Diffstat (limited to 'src/backend/tcop/postgres.c')
| -rw-r--r-- | src/backend/tcop/postgres.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c index 3986bee47be..4947b291375 100644 --- a/src/backend/tcop/postgres.c +++ b/src/backend/tcop/postgres.c @@ -7,7 +7,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.128 1999/08/31 04:26:40 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.129 1999/09/24 00:24:52 tgl Exp $ * * NOTES * this is the "main" module of the postgres backend and @@ -113,7 +113,22 @@ char relname[80]; /* current relation name */ /* note: these declarations had better match tcopprot.h */ DLLIMPORT sigjmp_buf Warn_restart; -bool InError; + +bool InError = true; + +/* + * Note: InError is a flag to elog() telling whether it is safe to longjmp + * back to PostgresMain. It is "false", allowing an error longjmp, during + * normal processing. It is "true" during startup, when we have not yet + * set the Warn_restart jmp_buf, and also "true" in the interval when we + * have executed a longjmp back to PostgresMain and not yet finished cleaning + * up after the error. In either case, elog(ERROR) should be treated as a + * fatal exit condition rather than attempting to recover --- since there is + * noplace to recover to in the first case, and we don't want to risk an + * infinite loop of "error recoveries" in the second case. + * + * Therefore, InError starts out "true" at program load time, as shown above. + */ extern int NBuffers; @@ -1469,7 +1484,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[]) if (!IsUnderPostmaster) { puts("\nPOSTGRES backend interactive interface "); - puts("$Revision: 1.128 $ $Date: 1999/08/31 04:26:40 $\n"); + puts("$Revision: 1.129 $ $Date: 1999/09/24 00:24:52 $\n"); } /* ---------------- @@ -1479,6 +1494,7 @@ PostgresMain(int argc, char *argv[], int real_argc, char *real_argv[]) * so we abort the current transaction and start a new one. * * Note: elog(ERROR) does a siglongjmp() to transfer control here. + * See comments with the declaration of InError, above. * ---------------- */ |