Initial revision

1 files changed, 374 insertions, 0 deletions

diff --git a/libpager/ChangeLog b/libpager/ChangeLog
new file mode 100644
index 00000000..ed8e3cca
--- /dev/null
+++ b/libpager/ChangeLog
@@ -0,0 +1,374 @@
+Thu May  9 11:10:11 1996  Michael I. Bushnell, p/BSG  <mib@gnu.ai.mit.edu>
+
+	* pager-create.c: Get rid of link warning.
+
+	* pager-create.c (pager_create): ports_allocate_port ->
+ 	ports_create_port; if we get an error return a null structure.
+
+Thu May  2 11:17:17 1996  Michael I. Bushnell, p/BSG  <mib@gnu.ai.mit.edu>
+
+	* offer-page.c (pager_offer_page): Make sure we hold lock across
+ 	operation.  Also set incore bit when operation is complete.
+
+Tue Apr 30 12:40:33 1996  Michael I. Bushnell, p/BSG  <mib@gnu.ai.mit.edu>
+
+	* lock-object.c (_pager_lock_object): Eliminate spurious extra
+ 	lock acquisition around pagemap frobbing.
+
+Sun Apr 28 15:46:12 1996  Roland McGrath  <roland@delasyd.gnu.ai.mit.edu>
+
+	* pager-create.c (pager_create): Add link warning.
+
+Thu Apr 18 13:03:55 1996  Michael I. Bushnell, p/BSG  <mib@gnu.ai.mit.edu>
+
+	* data-return.c (_pager_do_write_request): If kernel didn't keep a
+	copy, turn off INCORE bit.  Don't track INIT bit for now.
+	* lock-object.c (_pager_lock_object): If SYNC and SHOULD_FLUSH,
+ 	then turn off PM_INCORE bits when flush is complete.
+	* data-request.c (_pager_seqnos_memory_object_data_request): Set
+ 	PM_INCORE.
+	* priv.h (PM_INIT): Comment out.
+	(PM_INCORE): New bit.
+	* offer-page.c: New file.
+	* Makefile (SRCS): Add offer-page.c.
+	* pager.h (pager_offer_page): New function.
+
+Thu Apr 11 17:50:57 1996  Michael I. Bushnell, p/BSG  <mib@gnu.ai.mit.edu>
+
+	* pager-memcpy.c (pager_memcpy [copy]): Return error_t so that
+	this function has the proper type as an arg for
+	hurd_catch_signal.
+	(pager_memcpy): Cast FAULT to proper type in call to
+	hurd_catch_signal.
+
+Tue Mar 26 15:38:06 1996  Michael I. Bushnell, p/BSG  <mib@gnu.ai.mit.edu>
+
+	* lock-completed.c: Include <stdio.h>.
+
+	* data-return.c (_pager_do_write_request): Delete unused label
+ 	`out'.
+
+	* pager-sync.c (pager_sync, pager_sync_some): Ask for RETURN_ALL
+	and not just RETURN_DIRTY, because we treat precious pages as
+	dirty in this library.
+	* pager-return.c (pager_return, pager_return_some): Likewise.
+
+Mon Mar 18 13:10:32 1996  Michael I. Bushnell, p/BSG  <mib@gnu.ai.mit.edu>
+
+	* pager.h (pager_return, pager_return_some): New declarations.
+	* Makefile (SRCS): Add pager-return.c.
+	* pager-return.c: New file.
+
+	* pager-flush.c (pager_flush): Lock request should be
+ 	VM_PROT_NO_CHANGE, not VM_PROT_NONE.
+	(pager_flush_some): Likewise.
+
+Wed Mar  6 17:53:20 1996  Miles Bader  <miles@gnu.ai.mit.edu>
+
+	* lock-object.c (_pager_lock_object): Correctly remove LR from
+	P's linked list of lock requests.
+	* pager-attr.c (pager_change_attributes): Likewise for attributes.
+
+	* lock-object.c (_pager_lock_object): Don't barf anymore.
+	* lock-completed.c (_pager_seqnos_memory_object_lock_completed): Ditto.
+	* Makefile (SRCS): Remove barf.c.
+
+Wed Feb 21 14:15:26 1996  Miles Bader  <miles@gnu.ai.mit.edu>
+
+	* lock-completed.c (_pager_seqnos_memory_object_lock_completed):
+	Get rid of bletcherous semi.
+	Make barf more voluminous.
+
+	* lock-completed.c (_pager_seqnos_memory_object_lock_completed):
+	Be picky about always releasing SEQNO.
+	* object-init.c (_pager_seqnos_memory_object_init): Likewise.
+
+Tue Feb 20 17:44:59 1996  Miles Bader  <miles@gnu.ai.mit.edu>
+
+	* lock-object.c (_pager_lock_object): Use barf instead of printf.
+	* lock-completed.c (_pager_seqnos_memory_object_lock_completed): Ditto.
+	* Makefile (SRCS): Add barf.c.
+
+	* data-return.c (_pager_do_write_request): Always wait for and
+	release SEQNO if OBJECT is a valid pager.
+	* data-request.c (_pager_seqnos_memory_object_data_request): Likewise.
+	* object-terminate.c (_pager_seqnos_memory_object_terminate): Likewise.
+
+Tue Feb 20 16:05:42 1996  Michael I. Bushnell, p/BSG  <mib@gnu.ai.mit.edu>
+
+	* lock-object.c (_pager_lock_object): Print debugging message when
+	SYNC.
+	* lock-completed.c (_pager_seqnos_memory_object_lock_completed):
+	Print a notice when an incoming lock completion corresponds to no
+	outstanding lock request.
+
+Tue Feb 20 15:10:29 1996  Miles Bader  <miles@gnu.ai.mit.edu>
+
+	* lock-object.c (_pager_lock_object): Remove `sync = 0'.
+
+Fri Jan  5 17:09:43 1996  Roland McGrath  <roland@churchy.gnu.ai.mit.edu>
+
+	* pager-memcpy.c: New file.
+	* Makefile (SRCS): Add pager-memcpy.c.
+
+Thu Jan  4 15:37:21 1996  Roland McGrath  <roland@churchy.gnu.ai.mit.edu>
+
+	* pager.h: Declare pager_memcpy.
+
+Mon Oct  9 14:57:48 1995  Roland McGrath  <roland@churchy.gnu.ai.mit.edu>
+
+	* priv.h: Declare _pager_page_errors extern, not common.
+
+        * Makefile: Specify shared library dependencies.
+
+Wed Sep 13 14:49:53 1995  Michael I. Bushnell, p/BSG  <mib@duality.gnu.ai.mit.edu>
+
+	* lock-completed.c (_pager_seqnos_memory_object_lock_completed):
+ 	Don't push the locks_pending field negative in the case where the
+ 	pager was terminated before we get called.
+
+Tue Sep  5 15:50:12 1995  Miles Bader  <miles@churchy.gnu.ai.mit.edu>
+
+	* chg-compl.c (_pager_seqnos_memory_object_change_completed):
+	Don't push the attrs_pending field negative in the case where the
+	pager was terminated before we get called.
+
+Wed Aug 23 15:00:46 1995  Miles Bader  <miles@churchy.gnu.ai.mit.edu>
+
+	* Makefile (SRCS): Make this the main list of files, from which
+	the others are derived.
+	(COBJS, REMHDRS): Removed.
+	(OBJS): Derived mostly from $(SRCS).
+
+Fri Jul 21 16:43:19 1995  Michael I Bushnell  <mib@geech.gnu.ai.mit.edu>
+
+	* object-create.c (_pager_seqnos_memory_object_create): Drop
+	initial reference created by ports_intern_external_reference when
+	we're done with P.
+
+Thu Jul  6 15:36:36 1995  Michael I Bushnell  <mib@duality.gnu.ai.mit.edu>
+
+	* Makefile: Removed dependencies that are now automatically
+ 	generated.
+
+Mon Jun 26 20:15:03 1995  Michael I Bushnell  <mib@duality.gnu.ai.mit.edu>
+
+	* get-upi.c: New file.
+	* pager.h (pager_get_upi): New function.
+	* Makefile (COBJS): Add get-upi.o.
+
+Thu Jun 22 11:43:15 1995  Michael I Bushnell  <mib@duality.gnu.ai.mit.edu>
+
+	* object-init.c (_pager_seqnos_memory_object_init): Rather than an
+	empty `if' body and an unconditional return, how about a real
+	test?
+
+	* notify-stubs.c: New file.
+	* Makefile (COBJS): Add notify-stubs.o.
+
+Tue Jun 20 12:44:22 1995  Michael I Bushnell  <mib@duality.gnu.ai.mit.edu>
+
+	* chg-compl.c (_pager_seqnos_memory_object_change_completed): Use
+	new ports routines.
+	* pager-shutdown.c (pager_shutdown): Likewise.
+	* object-terminate.c (_pager_free_structure): Likewise.
+	* object-init.c (_pager_seqnos_memory_object_init): Likewise.
+	* lock-completed.c (_pager_seqnos_memory_object_lock_completed):
+	Likewise.
+	* data-unlock.c (_pager_seqnos_memory_object_data_unlock): Likewise.
+	* data-return.c (_pager_do_write_request): Likewise.
+	* data-request.c (_pager_seqnos_memory_object_data_request):
+	Likewise.
+	* pager-create.c (pager_create): New parm BUCKET.  Allocate port
+	using new ports interface.  Arrange to have _pager_class
+	initialized at startup.
+	* clean.c, dropweak.c: New files.
+	* no-senders.c: Rename pager_no_senders to
+	_pager_do_seqnos_mach_notify_no_senders.  Lookup up port right
+	ourselves.  Remove function pager_clean (now in clean.c).
+	* priv.h (_pager_class): New var.
+	(_pager_clean, _pager_real_dropweak): New decls.
+	* Makefile (COBJS): Delete reference.o.  Add clean.o and dropweak.o
+	(OBJS): Add notifyServer.o.
+	(demuxer.o): Depend on notify_S.h.
+	* demuxer.c: Include "notify_S.h".
+	(pager_demuxer): Declare and use _pager_seqnos_notify_server.
+	* pager.h: Include <hurd/ports.h>.
+	(pager_no_senders, pager_reference, pager_unreference,
+	pager_port_type, pager_clean): Remove declarations.
+	(pager_create): New parm BUCKET.
+	(pager_clean): Doc fix.
+	(pager_dropweak): New decl.
+	* reference.c: Deleted file.
+
+Thu May 11 11:19:44 1995  Miles Bader  <miles@churchy.gnu.ai.mit.edu>
+
+	* priv.h (PM_NEXTERROR, SET_PM_NEXTERROR): Mask 2-bit error code
+	with 0x3, not 0x2!
+
+	* mark-error.c (_pager_mark_next_request_error,
+	_pager_mark_object_error): Put the error code in the correct place
+	in the pagemap rather than always at the beginning.
+	(pager_get_error): Get the error code from the pagemap rather than
+	just using the pagemap offset!
+
+Wed Nov 23 00:28:19 1994  Roland McGrath  <roland@churchy.gnu.ai.mit.edu>
+
+	* demuxer.c (pager_demuxer): Call
+	_pager_seqnos_memory_object_server, not
+	seqnos_memory_object_server.
+
+Tue Nov  8 14:15:01 1994  Michael I Bushnell  <mib@geech.gnu.ai.mit.edu>
+
+	* lock-object.c (_pager_lock_object): Hammer SYNC to zero for now;
+	there's some deadlock bug in noticing when the sync finishes.
+
+Tue Aug 30 17:55:34 1994  Michael I Bushnell  <mib@geech.gnu.ai.mit.edu>
+
+	* data-return.c: Include <assert.h>.
+	(_pager_seqnos_memory_object_data_return): Use return correctly.
+
+Mon Aug 29 17:30:52 1994  Michael I Bushnell  <mib@geech.gnu.ai.mit.edu>
+
+	* priv.h (PM_INIT): New pagemap bit.
+	* data-return.c (_pager_do_write-request): Set PM_INIT for
+	affected pages.  New var `omitdata' hold a bitmap of the
+	pages that we are not actually writing.  Set accordingly
+	while looking through pagemap before starting I/O.  Don't
+	actually call I/O on these pages or frob the page map with them
+	later.
+
+	* data-return.c (_pager_seqnos_memory_object_data_return): Split
+	into two functions; _pager_do_write_request does the real work
+	now.
+
+	* object-create.c: New file.
+	* data-init.c: New file.
+
+Fri Jul 22 11:54:05 1994  Michael I Bushnell  <mib@geech.gnu.ai.mit.edu>
+
+	* Makefile: Rewritten to use new scheme.
+	* data-request.c: Include "memory_object_S.h" instead of
+	"memory_object.h".
+	* data-return.c: Likewise.
+	* data-unlock.c: Likewise.
+	* lock-completed: Likewise.
+	* stubs.c: Likewise.
+	* object-init.c: Likewise.
+	* demuxer.c: Likewise.
+	* object-terminate.c: Likewise.
+
+Tue Jul  5 14:14:17 1994  Michael I Bushnell  (mib@churchy.gnu.ai.mit.edu)
+
+	* Makefile (TAGSHDRS): New variable.
+
+Wed Jun  1 11:41:24 1994  Michael I Bushnell  (mib@churchy.gnu.ai.mit.edu)
+
+	* pager-attr.c (pager_change_attributes): Return immediately
+	if we are already in the requested state.
+
+	* lock-completed.c (_pager_seqnos_memory_object_lock_completed):
+	Call ports_done_with_port before returning to free reference
+	created by ports_check_port_type.
+	* chg-compl.c (_pager_seqnos_memory_object_change_completed):
+	Likewise.
+
+	* seqnos.c (_pager_release_seqno): New second arg SEQNO.
+	Set p->seqno here.  All callers changed.
+	(_pager_wait_for_seqno): Don't set p->seqno here; then it
+	might get released before we actually call _pager_release_seqno.
+	* priv.h (_pager_release_seqno): Declare new second arg.
+
+	* priv.h (KERNEL_INIT_RACE): New compilation option.  All the
+	changes in this block are conditionalized by this macro.
+	* priv.h (struct pager): New members init_head and init_tail.
+	(struct pending_init): New type.
+	* object-init.c (_pager_seqnos_memory_object_init): If the object
+	is not ready for init, then queue the init for later processing.
+	* object-terminate.c (_pager_seqnos_memory_object_terminate): If
+	there is a pending init, return it here.
+	* no-senders.c (pager_clean): Destroy all pending inits here.
+
+	* object-terminate.c (_pager_free_structure): Don't unlock
+	interlock or free the seqno here.
+	(_pager_seqnos_memory_object_terminate): Unlock interlock and
+	free seqno after calling _pager_free_structure.
+	* no-senders.c (pager_clean): Unlock interlock after calling
+	_pager_free_structure.  Don't free seqno here at all.
+
+Tue May 24 15:25:54 1994  Michael I Bushnell  (mib@churchy.gnu.ai.mit.edu)
+
+	* data-return.c (_pager_seqnos_memory_object_data_return): New
+	vars NPAGES, I, and PAGERRS.  Rename var PM_ENTRY to be
+	PM_ENTRIES.  Deal with multiple-page data_return calls by dealing
+	with multiple pagemap slots and calling pager_write_page multiple
+	times.
+
+	* data-return.c (_pager_seqnos_memory_object_data_return): Fix
+	printf messages; include length in bogus length messages.
+
+	*data-unlock (_pager_seqnos_memory_object_data_unlock): Likewise.
+
+Mon May 23 13:06:31 1994  Michael I Bushnell  (mib@churchy.gnu.ai.mit.edu)
+
+	* data-request.c (_pager_seqnos_memory_object_data_request):
+	Report length in bogus arg messages; terminate messages with
+	newlines.
+
+	* chg-compl.c: Include <stdio.h>.
+
+	* priv.h (struct pager [may_cache, copy_strategy]):  New members.
+	* pager.h (pager_create_pager): Added new args MAY_CACHE and
+	COPY_STRATEGY.
+	(pager_report_attributes): Deleted declaration.
+	* object-init.c (_pager_seqnos_memory_object_init): Set attributes
+	from values in P rather than by calling pager_report_attributes.
+	* pager-attr.c (pager_change_attributes): Don't panic if the
+	pager isn't yet initialized by the kernel; record the provided
+	values in may_cache and copy_strategy.
+
+	* pager-attr.c: Spelling fix.
+	Include <assert.h>.
+	* Makefile (COBJS): Added pager-attr.o.
+
+Fri May 20 15:41:12 1994  Michael I Bushnell  (mib@geech.gnu.ai.mit.edu)
+
+	* lock-completed.c (_pager_seqnos_memory_object_lock_completed):
+	Delete unneeded variable wakeup.  Break out of loop as soon
+	as we find the right record.  Call condition_broadcast only
+	if we need bother.
+
+	* pager.h (pager_change_attributes, pager_report_attributes):
+	New declarations.
+	* priv.h (struct attribute_request): New structure.
+	(struct pager [attribute_requests]): New member.
+	* pager-create.c (pager_create): Initialize new member.
+	* object-init.c (_pager_seqnos_memory_object_init): Call
+	pager_report_attributes for correct args to memory_object_ready.
+	* pager-attr.c: New file.
+	* object-terminate.c (_pager_free_structure): Wakeup pending
+	pager_change_attribute requests.
+	* stubs.c (_pager_seqnos_memory_object_change_completed): Deleted
+	function.
+	* chg-compl.c: New file.
+	* Makefile (COBJS): Added chg-compl.o.
+
+Thu May  5 07:49:21 1994  Roland McGrath  (roland@churchy.gnu.ai.mit.edu)
+
+	* stubs.c (_pager_seqnos_memory_object_supply_completed): Change
+	RESULT arg to type kern_return_t; error_t is not compatible.
+
+	* demuxer.c (pager_demuxer): Declare seqnos_memory_object_server.
+
+	* stubs.c, lock-completed.c: Changed return type of all RPC server
+	functions to kern_return_t.  error_t is not compatible with the
+	declarations in the mig-generated header files.
+
+	* Makefile: Change uses of $(headers) to $(includedir).
+
+Tue Apr 26 15:08:57 1994  Michael I Bushnell  (mib@geech.gnu.ai.mit.edu)
+
+	* object-init.c (_pager_seqnos_memory_object_init): Only check
+	for inits of active objects AFTER waiting for seqno; otherwise we
+	could race against a prior terminate.
+