diff options
Diffstat (limited to 'src/backend/storage/buf_internals.h')
| -rw-r--r-- | src/backend/storage/buf_internals.h | 39 |
1 files changed, 31 insertions, 8 deletions
diff --git a/src/backend/storage/buf_internals.h b/src/backend/storage/buf_internals.h index 84583867fa..90e9c38487 100644 --- a/src/backend/storage/buf_internals.h +++ b/src/backend/storage/buf_internals.h @@ -6,7 +6,7 @@ * * Copyright (c) 1994, Regents of the University of California * - * $Id: buf_internals.h,v 1.1.1.1 1996/07/09 06:21:52 scrappy Exp $ + * $Id: buf_internals.h,v 1.2 1996/07/22 22:59:42 scrappy Exp $ * * NOTE * If BUFFERPAGE0 is defined, then 0 will be used as a @@ -135,18 +135,41 @@ struct sbufdesc { * It eats up more shared memory, of course, but we're (allegedly) * going to make some of these types bigger soon anyway... -pma 1/2/93 */ + +/* NO spinlock */ + #if defined(PORTNAME_ultrix4) char sb_pad[60]; /* no slock_t */ #endif /* mips */ -#if defined(PORTNAME_sparc) || defined(PORTNAME_sparc_solaris) || defined(PORTNAME_irix5) - char sb_pad[56]; /* has slock_t */ -#endif /* sparc || irix5 */ -#if defined(PORTNAME_hpux) - char sb_pad[44]; /* has slock_t */ -#endif /* alpha */ + +/* HAS_TEST_AND_SET -- platform dependent size */ + +#if defined(PORTNAME_aix) + char sb_pad[44]; /* typedef unsigned int slock_t; */ +#endif /* aix */ #if defined(PORTNAME_alpha) - char sb_pad[40]; /* has slock_t */ + char sb_pad[40]; /* typedef msemaphore slock_t; */ #endif /* alpha */ +#if defined(PORTNAME_hpux) + char sb_pad[44]; /* typedef struct { int sem[4]; } slock_t; */ +#endif /* hpux */ +#if defined(PORTNAME_irix5) + char sb_pad[44]; /* typedef abilock_t slock_t; */ +#endif /* irix5 */ +#if defined(PORTNAME_next) + char sb_pad[56]; /* typedef struct mutex slock_t; */ +#endif /* next */ + +/* HAS_TEST_AND_SET -- default 1 byte spinlock */ + +#if defined(PORTNAME_BSD44_derived) || \ + defined(PORTNAME_bsdi) || \ + defined(PORTNAME_i86pc_solaris) || \ + defined(PORTNAME_linux) || \ + defined(PORTNAME_sparc) || \ + defined(PORTNAME_sparc_solaris) + char sb_pad[56]; /* has slock_t */ +#endif /* 1 byte slock_t */ }; /* |