Update. cvs/libc-ud-970930

1997-09-30 18:03  Ulrich Drepper  <drepper@cygnus.com>

	* Makerules: Undo last change.
	* csu/Makefile: Define before-compile at the right place.

	* aclocal.m4: Remove a.out file created by assembler test.

	* set-init.c: Find set-hooks.h using <...>.

	Update to db 2.3.10.
	* db2/Makefile: Update.
	* db2/db.h: Likewise.
	* db2/db_185.h: Likewise.
	* db2/db_int.h: Likewise.
	* db2/btree/bt_close.c: Likewise.
	* db2/btree/bt_conv.c: Likewise.
	* db2/btree/bt_cursor.c: Likewise.
	* db2/btree/bt_put.c: Likewise.
	* db2/btree/bt_rec.c: Likewise.
	* db2/btree/bt_recno.c: Likewise.
	* db2/btree/btree.src: Likewise.
	* db2/btree/btree_auto.c: Likewise.
	* db2/clib/getlong.c: Likewise.
	* db2/db/db.c: Likewise.
	* db2/db/db_auto.c: Likewise.
	* db2/db/db_conv.c: Likewise.
	* db2/db/db_pr.c: Likewise.
	* db2/db/db_ret.c: Likewise.
	* db2/db/db_thread.c: Likewise.
	* db2/hash/hash.c: Likewise.
	* db2/hash/hash_auto.c: Likewise.
	* db2/hash/hash_conv.c: Likewise.
	* db2/hash/hash_dup.c: Likewise.
	* db2/hash/hash_func.c: Likewise.
	* db2/hash/hash_page.c: Likewise.
	* db2/hash/hash_rec.c: Likewise.
	* db2/include/btree.h: Likewise.
	* db2/include/btree_ext.h: Likewise.
	* db2/include/db.h.src: Likewise.
	* db2/include/db_185.h.src: Likewise.
	* db2/include/db_cxx.h: Likewise.
	* db2/include/db_ext.h: Likewise.
	* db2/include/db_int.h.src: Likewise.
	* db2/include/db_page.h: Likewise.
	* db2/include/db_shash.h: Likewise.
	* db2/include/lock.h: Likewise.
	* db2/include/log.h: Likewise.
	* db2/include/log_ext.h: Likewise.
	* db2/include/mp.h: Likewise.
	* db2/include/shqueue.h: Likewise.
	* db2/include/txn.h: Likewise.
	* db2/lock/lock.c: Likewise.
	* db2/lock/lock_deadlock.c: Likewise.
	* db2/log/log.c: Likewise.
	* db2/log/log_archive.c: Likewise.
	* db2/log/log_auto.c: Likewise.
	* db2/log/log_get.c: Likewise.
	* db2/log/log_put.c: Likewise.
	* db2/log/log_register.c: Likewise.
	* db2/mp/mp_bh.c: Likewise.
	* db2/mp/mp_fget.c: Likewise.
	* db2/mp/mp_fopen.c: Likewise.
	* db2/mp/mp_fput.c: Likewise.
	* db2/mp/mp_fset.c: Likewise.
	* db2/mp/mp_open.c: Likewise.
	* db2/mutex/mutex.c: Likewise.
	* db2/os/db_os_dir.c: Likewise.
	* db2/progs/db_checkpoint/db_checkpoint.c: Likewise.
	* db2/progs/db_deadlock/db_deadlock.c: Likewise.
	* db2/progs/db_dump185/db_dump185.c: Likewise.
	* db2/progs/db_load/db_load.c: Likewise.
	* db2/progs/db_recover/db_recover.c: Likewise.
	* db2/txn/txn.c: Likewise.
	* db2/txn/txn_auto.c: Likewise.

	* elf/link.h: Define struct libname_list outside struct link_map
	to not confuse C++ compilers.

	* include/features.h: Recognize _XOPEN_SOURCE == 500 and set
	__USE_UNIX98.
	* manual/creature.texi: Explain this.

	* libc.map: Add new functions.

	* libio/Makefile (routines): Add fseeko and ftello.
	* libio/ftello.c: New file.
	* libio/fseeko.c: New file.
	* libio/stdio.h: Add prototypes for new functions.
	* manual/stdio.texi: Document fseeko and ftello.

	* posix/Makefile (routines): Add pread and pwrite.
	* sysdeps/posix/pread.c: New file.
	* sysdeps/posix/pwrite.c: New file.
	* sysdeps/stub/pread.c: New file.
	* sysdeps/stub/pwrite.c: New file.
	* posix/unistd.h: Add prototypes for pread and pwrite.
	Pretty print header.
	Define gid_t, uid_t, off_t, pid_t if __USE_UNIX98.
	Declare ctermid and cuserid if __USE_UNIX98.
	(swab): Change to take void * arguments.
	* string/swab.c: Change parameter to void *.
	* posix/sys/types: Define gid_t, uid_t, off_t, pid_t only if not
	already happened.
	* manual/llio.texi: Document pread and pwrite.

	* string/strings.h: Don't simply include string.h.  Define BSD
	functions according to Unix98.
	* stdlib/tst-strtol.c: Include <string.h> not <strings.h>.
	* sunrpc/clnt_simp.c: Likewise.

	* malloc/Makefile (aux): Add set-freeres.
	* malloc/mtrace.c: Define function release_libc_mem which calls the
	__libc_subfreeres handler.
	(mtrace): Register release_libc_mem.
	* malloc/set-freeres.c: New file.

	* intl/dcgettext.c: Define free_mem function and add to
	__libc_subfreeres list.
	* intl/finddomain.c: Likewise.
	* intl/gettextP.h (struct loaded_domain): Add new fields use_mmap
	and mmap_size.  Add prototype for _nl_unloaded_domain.
	* intl/loadmsgcat.c: Define new function _nl_unload_domain.
	(_nl_load_domain): Store informaiton about mmap use and file size.
	* intl/localealias.c (read_alias_file): Optimize locale alias file
	reading by avoid frequen mallocs.
	Define free_mem function and add to __libc_subfreeres list.

	* locale/localeinfo.h: Make a difference between MAX_USAGE_COUNT and
	undeletable.
	Add prototype for _nl_unload_locale.
	* locale/C-collate: Mark data as undeletable by using UNDELETABLE.
	* locale/C-ctype: Likewise.
	* locale/C-messages: Likewise.
	* locale/C-monetary: Likewise.
	* locale/C-numeric: Likewise.
	* locale/C-time: Likewise.
	* locale/findlocale.c (_nl_find_locale, _nl_remove_locale): Handle
	MAX_USAGE_COUNT and UNDELETABLE.
	(free_mem): New function.  Add it to __libc_subfreeres list.
	* locale/loadlocale.c: Define _nl_unload_locale function.

	* misc/hsearch.c: Register hdestroy in __libc_subfreeres list.

	* stdlib/fmtmsg.c (addseverity): Handle illegal severity arguments
	correctly
	Define free_mem function and add to __libc_subfreeres list.

	* locale/programs/localedef.c (options): short form os verbose is v.
	Reported by Andreas Jaeger.

	* misc/sys/select.h: Define pselect only is __USE_POSIX since this
	header is used in some others as well for historical reasons.

	* resolv/resolv.h: Include <netinet/in.h> to make self-contained.

	* string/bits/string2.h: Add missing braces and optimize strcmp a
	bit more.
	* sysdeps/i386/i486/bits/string.h: Likewise.

	* sunrpc/rpc/auth_des.h: Include rpc/auth.h to be self-contained.
	Pretty print.

	* sysdeps/mach/hurd/cthreads.c: Add copyright text.

	* sysdeps/unix/sysv/linux/syscalls.list: Correct prctl entry.

	* sysdeps/unix/sysv/linux/sys/mman.h: Get definition of size_t.

	* time/time.h: Pretty print.

1997-09-29  Paul Eggert  <eggert@twinsun.com>

	* time/strftime.c: Synchronize with GNU Emacs strftime.c.
	(HAVE_MEMCPY): Define if emacs is defined and HAVE_BCOPY isn't.
	(gmtime_r, localtime_r): Undef before defining.
	(iso_week_days): Use __inline__, not inline.

1997-09-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/m68k/fpu/bits/mathinline.h: Rename exp2{,l,f} to
	__ieee754_exp2{,l,f}.
	* sysdeps/m68k/fpu/s_exp2.c: Likewise.
	* sysdeps/m68k/fpu/s_exp2l.c: Likewise.
	* sysdeps/m68k/fpu/s_exp2f.c: Likewise.

1997-09-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/soinit.c (__EH_FRAME_BEGIN__): Don't make the .eh_frame
	section read-only, it contains relocations.
	* elf/sofini.c (__FRAME_END__): Likewise.

1997-09-29 03:08  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/i386/i486/bits/string.h [__PIC__] (__strspn_cg, __strcspn_cg,
	__strpbrk_cg, __strstr_cg): Optimize even more.  No spill register
	needed.  Patch by NIIBE Yutaka <gniibe@mri.co.jp>.

1997-09-28 08:27  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/nis_call.c (__do_niscall2): Fix return code, add missing
	  break in switch case.

	* nis/nis_mkdir.c: Fix return codes to match Solaris version.
	* nis/nis_rmdir.c: Likewise.

	* nis/rpcsvc/yp_prot.h: Rename struct keydat to struct keydat_t
	for C++.

1997-09-28 04:32  Ulrich Drepper  <drepper@cygnus.com>

	* configure.in: Fix typo.
	Patch by Zack Weinberg <zack@rabi.phys.columbia.edu>.

1997-09-25 20:14  Philip Blundell  <Philip.Blundell@pobox.com>

	* sysdeps/unix/sysv/linux/scsi/sg.h: New file.
	* sysdeps/unix/sysv/linux/Makefile: Install <scsi/sg.h>.

2 files changed, 27 insertions, 22 deletions

diff --git a/db2/lock/lock.c b/db2/lock/lock.c
index 8fc91334a7..a2a3b208f2 100644
--- a/db2/lock/lock.c
+++ b/db2/lock/lock.c
@@ -8,7 +8,7 @@
 #include "config.h"
 
 #ifndef lint
-static const char sccsid[] = "@(#)lock.c	10.31 (Sleepycat) 8/17/97";
+static const char sccsid[] = "@(#)lock.c	10.36 (Sleepycat) 9/24/97";
 #endif /* not lint */
 
 #ifndef NO_SYSTEM_INCLUDES
@@ -201,7 +201,7 @@ lock_open(path, flags, mode, dbenv, ltp)
 	 * Create the lock table structure.
 	 */
 	if ((lt = (DB_LOCKTAB *)calloc(1, sizeof(DB_LOCKTAB))) == NULL) {
-		__db_err(dbenv, "%s", strerror(errno));
+		__db_err(dbenv, "%s", strerror(ENOMEM));
 		return (ENOMEM);
 	}
 	lt->dbenv = dbenv;
@@ -319,8 +319,10 @@ lock_vec(lt, locker, flags, list, nlist, elistp)
 		case DB_LOCK_GET:
 			ret = __lock_get_internal(lt, locker, flags,
 			    list[i].obj, list[i].mode, &lp);
-			if (ret == 0)
+			if (ret == 0) {
 				list[i].lock = LOCK_TO_OFFSET(lt, lp);
+				lt->region->nrequests++;
+			}
 			break;
 		case DB_LOCK_PUT:
 			lp = OFFSET_TO_LOCK(lt, list[i].lock);
@@ -351,7 +353,7 @@ lock_vec(lt, locker, flags, list, nlist, elistp)
 		case DB_LOCK_PUT_OBJ:
 
 			/* Look up the object in the hash table. */
-			__db_hashlookup(lt->hashtab, __db_lockobj, links,
+			HASHLOOKUP(lt->hashtab, __db_lockobj, links,
 			    list[i].obj, sh_obj, lt->region->table_size,
 			    __lock_ohash, __lock_cmp);
 			if (sh_obj == NULL) {
@@ -596,8 +598,8 @@ __lock_put_internal(lt, lockp, do_all)
 
 	/* Check if object should be reclaimed. */
 	if (SH_TAILQ_FIRST(&sh_obj->holders, __db_lock) == NULL) {
-		__db_hashremove_el(lt->hashtab, __db_lockobj, links, sh_obj,
-		    lt->region->table_size, __lock_lhash);
+		HASHREMOVE_EL(lt->hashtab, __db_lockobj,
+		    links, sh_obj, lt->region->table_size, __lock_lhash);
 		__db_shalloc_free(lt->mem, SH_DBT_PTR(&sh_obj->lockobj));
 		SH_TAILQ_INSERT_HEAD(&lt->region->free_objs, sh_obj, links,
 		    __db_lockobj);
@@ -676,8 +678,12 @@ __lock_get_internal(lt, locker, flags, obj, lock_mode, lockp)
 	 * Now we have a lock and an object and we need to see if we should
 	 * grant the lock.  We use a FIFO ordering so we can only grant a
 	 * new lock if it does not conflict with anyone on the holders list
-	 * OR anyone on the waiters list.  In case of conflict, we put the
-	 * new lock on the end of the waiters list.
+	 * OR anyone on the waiters list.  The reason that we don't grant if
+	 * there's a conflict is that this can lead to starvation (a writer
+	 * waiting on a popularly read item will never ben granted).  The
+	 * downside of this is that a waiting reader can prevent an upgrade
+	 * from reader to writer, which is not uncommon.  In case of conflict,
+	 * we put the new lock on the end of the waiters list.
 	 */
 	for (lp = SH_TAILQ_FIRST(&sh_obj->holders, __db_lock);
 	    lp != NULL;
@@ -1042,7 +1048,7 @@ __lock_dump_locker(lt, op)
 
 	ptr = SH_DBT_PTR(&op->lockobj);
 	memcpy(&locker, ptr, sizeof(u_int32_t));
-	printf("L %lu", (u_long)locker);
+	printf("L %lx", (u_long)locker);
 
 	lp = SH_LIST_FIRST(&op->heldby, __db_lock);
 	if (lp == NULL) {
@@ -1095,7 +1101,7 @@ __lock_is_locked(lt, locker, dbt, mode)
 	lrp = lt->region;
 
 	/* Look up the object in the hash table. */
-	__db_hashlookup(lt->hashtab, __db_lockobj, links,
+	HASHLOOKUP(lt->hashtab, __db_lockobj, links,
 	    dbt, sh_obj, lrp->table_size, __lock_ohash, __lock_cmp);
 	if (sh_obj == NULL)
 		return (0);
@@ -1171,7 +1177,7 @@ __lock_printlock(lt, lp, ispgno)
 		stat = "UNKNOWN";
 		break;
 	}
-	printf("\t%lu\t%s\t%lu\t%s\t",
+	printf("\t%lx\t%s\t%lu\t%s\t",
 	    (u_long)lp->holder, mode, (u_long)lp->refcount, stat);
 
 	lockobj = (DB_LOCKOBJ *)((u_int8_t *)lp + lp->obj);
@@ -1243,11 +1249,11 @@ __lock_getobj(lt, locker, dbt, type, objp)
 
 	/* Look up the object in the hash table. */
 	if (type == DB_LOCK_OBJTYPE) {
-		__db_hashlookup(lt->hashtab, __db_lockobj, links, dbt, sh_obj,
+		HASHLOOKUP(lt->hashtab, __db_lockobj, links, dbt, sh_obj,
 		    lrp->table_size, __lock_ohash, __lock_cmp);
 		obj_size = dbt->size;
 	} else {
-		__db_hashlookup(lt->hashtab, __db_lockobj, links, locker,
+		HASHLOOKUP(lt->hashtab, __db_lockobj, links, locker,
 		    sh_obj, lrp->table_size, __lock_locker_hash,
 		    __lock_locker_cmp);
 		obj_size = sizeof(locker);
@@ -1288,8 +1294,8 @@ __lock_getobj(lt, locker, dbt, type, objp)
 		sh_obj->lockobj.size = obj_size;
 		sh_obj->lockobj.off = SH_PTR_TO_OFF(&sh_obj->lockobj, p);
 
-		__db_hashinsert(lt->hashtab, __db_lockobj, links, sh_obj,
-		    lrp->table_size, __lock_lhash);
+		HASHINSERT(lt->hashtab,
+		    __db_lockobj, links, sh_obj, lrp->table_size, __lock_lhash);
 
 		if (type == DB_LOCK_LOCKER)
 			lrp->nlockers++;
@@ -1325,8 +1331,8 @@ __lock_freeobj(lt, obj)
 	DB_LOCKTAB *lt;
 	DB_LOCKOBJ *obj;
 {
-	__db_hashremove_el(lt->hashtab, __db_lockobj, links,
-	    obj, lt->region->table_size, __lock_lhash);
+	HASHREMOVE_EL(lt->hashtab,
+	    __db_lockobj, links, obj, lt->region->table_size, __lock_lhash);
 	__db_shalloc_free(lt->mem, SH_DBT_PTR(&obj->lockobj));
 	SH_TAILQ_INSERT_HEAD(&lt->region->free_objs, obj, links, __db_lockobj);
 }
diff --git a/db2/lock/lock_deadlock.c b/db2/lock/lock_deadlock.c
index f753958b21..f947f901c3 100644
--- a/db2/lock/lock_deadlock.c
+++ b/db2/lock/lock_deadlock.c
@@ -11,7 +11,7 @@
 static const char copyright[] =
 "@(#) Copyright (c) 1997\n\
 	Sleepycat Software Inc.  All rights reserved.\n";
-static const char sccsid[] = "@(#)lock_deadlock.c	10.20 (Sleepycat) 8/21/97";
+static const char sccsid[] = "@(#)lock_deadlock.c	10.21 (Sleepycat) 9/6/97";
 #endif
 
 #ifndef NO_SYSTEM_INCLUDES
@@ -300,8 +300,8 @@ retry:	count = lt->region->nlockers;
 			for (lp = SH_TAILQ_FIRST(&op->holders, __db_lock);
 			    lp != NULL;
 			    lp = SH_TAILQ_NEXT(lp, links, __db_lock)) {
-				if ((__set_errno(__lock_getobj(lt, lp->holder,
-				    NULL, DB_LOCK_LOCKER, &lockerp))) != 0) {
+				if (__lock_getobj(lt, lp->holder,
+				    NULL, DB_LOCK_LOCKER, &lockerp) != 0) {
 					__db_err(dbenv,
 					    "warning unable to find object");
 					continue;
@@ -472,8 +472,7 @@ __dd_debug(dbenv, idmap, bitmap, nlockers)
 	 * Alloc space to print 10 bytes per item waited on.
 	 */
 	if ((msgbuf = (char *)malloc((nlockers + 1) * 10 + 64)) == NULL) {
-		__set_errno(ENOMEM);
-		__db_err(dbenv, "%s", strerror(errno));
+		__db_err(dbenv, "%s", strerror(ENOMEM));
 		return;
 	}