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Update s_lock.c comments.

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This commit is contained in:
Bruce Momjian 2005-12-17 20:39:16 +00:00
parent 70cab220c8
commit 8d26730a9a
1 changed files with 14 additions and 12 deletions
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26
src/include/storage/s_lock.h
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@ -66,7 +66,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/storage/s_lock.h,v 1.143 2005/12/17 20:15:43 momjian Exp $
* $PostgreSQL: pgsql/src/include/storage/s_lock.h,v 1.144 2005/12/17 20:39:16 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -565,14 +565,16 @@ typedef unsigned char slock_t;
/***************************************************************************
/*
* ---------------------------------------------------------------------
* Platforms that use non-gcc inline assembly:
* ---------------------------------------------------------------------
*/
#if !defined(HAS_TEST_AND_SET) /* We didn't trigger above, let's try here */
#if defined(USE_UNIVEL_CC)
#if defined(USE_UNIVEL_CC) /* Unixware compiler */
#define HAS_TEST_AND_SET
typedef unsigned char slock_t;
@ -595,7 +597,7 @@ tas(volatile slock_t *s_lock)
#endif /* defined(USE_UNIVEL_CC) */
#if defined(__alpha) || defined(__alpha__)
#if defined(__alpha) || defined(__alpha__) /* Tru64 Unix Alpha compiler */
/*
* The Tru64 compiler doesn't support gcc-style inline asm, but it does
* have some builtin functions that accomplish much the same results.
@ -616,7 +618,7 @@ typedef unsigned long slock_t;
#endif /* __alpha || __alpha__ */
#if defined(__hppa) || defined(__hppa__)
#if defined(__hppa) || defined(__hppa__) /* HP PA-RISC, GCC and HP compilers */
/*
* HP's PA-RISC
*
@ -682,7 +684,7 @@ typedef unsigned int slock_t;
#endif /* HPUX on IA64, non gcc */
#if defined(__QNX__) && defined(__WATCOMC__)
#if defined(__QNX__) && defined(__WATCOMC__) /* QNX */
/*
* QNX 4 using WATCOM C
*/
@ -701,7 +703,7 @@ extern slock_t wc_tas(volatile slock_t *lock);
#endif /* __QNX__ and __WATCOMC__*/
#if defined(__sgi)
#if defined(__sgi) /* SGI compiler */
/*
* SGI IRIX 5
* slock_t is defined as a unsigned long. We use the standard SGI
@ -726,7 +728,7 @@ typedef unsigned long slock_t;
#endif /* __sgi */
#if defined(sinix)
#if defined(sinix) /* Sinux */
/*
* SINIX / Reliant UNIX
* slock_t is defined as a struct abilock_t, which has a single unsigned long
@ -744,7 +746,7 @@ typedef abilock_t slock_t;
#endif /* sinix */
#if defined(_AIX)
#if defined(_AIX) /* AIX */
/*
* AIX (POWER)
*/
@ -757,7 +759,7 @@ typedef unsigned int slock_t;
#endif /* _AIX */
#if defined (nextstep)
#if defined (nextstep) /* Nextstep */
#define HAS_TEST_AND_SET
typedef struct mutex slock_t;
@ -773,7 +775,7 @@ typedef struct mutex slock_t;
/* These are in s_lock.c */
#if defined(sun3)
#if defined(sun3) /* Sun3 */
#define HAS_TEST_AND_SET
typedef unsigned char slock_t;
@ -789,7 +791,7 @@ typedef unsigned char slock_t;
/* out-of-line assembler from src/backend/port/tas/foo.s */
#if defined(__sun) && defined(__i386)
#if defined(__sun) && defined(__i386) /* i386 using Sun compiler */
/*
* Solaris/386 (we only get here for non-gcc case)
*/