path: root/winsup/cygwin/ChangeLog

2004-03-28  Corinna Vinschen  <corinna@vinschen.de>

	* shm.cc (shmat): Return (void *) -1 on error instead of NULL.

2004-03-27  Christopher Faylor  <cgf@redhat.com>

	* fhandler_nodevice.cc (fhandler_nodevice::open): Assume that errno has
	already been set if pc.error is nonzero.

2004-03-26  Christopher Faylor  <cgf@redhat.com>

	* cygheap.cc (cygheap_fixup_in_child): Improve strace output.

2004-03-26  Corinna Vinschen  <corinna@vinschen.de>

	* errno.cc (errmap): Map ERROR_SHARING_VIOLATION to EBUSY,
	ERROR_EOM_OVERFLOW and ERROR_NO_DATA_DETECTED to EIO.  Add mappings
	for ERROR_NO_MEDIA_IN_DRIVE, ERROR_DEVICE_REQUIRES_CLEANING and
	ERROR_DEVICE_DOOR_OPEN.
	* fhandler.h (class fhandler_dev_raw): Drop varblkop member.
	(fhandler_dev_raw::is_eom): De-virtualize.
	(fhandler_dev_raw::is_eof): Ditto.
	(class fhandler_dev_tape): Drop lasterr and dp member.  Add mt_mtx
	member.  Drop all private methods formerly used by ioctl.
	(fhandler_dev_tape::is_rewind_device): Use get_minor for clarity.
	(fhandler_dev_tape::driveno): New method.
	(fhandler_dev_tape::drive_init): New method.
	(fhandler_dev_tape::clear): Remove method.
	(fhandler_dev_tape::is_eom): Ditto.
	(fhandler_dev_tape::is_eof): Ditto.
	(fhandler_dev_tape::write_file): Ditto.
	(fhandler_dev_tape::read_file): Ditto.
	(fhandler_dev_tape::_lock): New method.
	(fhandler_dev_tape::unlock): New method.
	(fhandler_dev_tape::raw_read): New method.
	(fhandler_dev_tape::raw_write): New method.
	* fhandler_raw.cc (fhandler_dev_raw::is_eom): New method.
	(fhandler_dev_raw::is_eof): New method.
	(fhandler_dev_raw::open): Allow setting write through option by
	using the O_TEXT flag as ... flag.
	(fhandler_dev_raw::writebuf): Remove usage of varblkop and other
	tape specific code.
	(fhandler_dev_raw::raw_read): Ditto.
	(fhandler_dev_raw::dup): Ditto.
	* fhandler_tape.cc: Rewrite tape operations entirely.  Implement
	new tape driver classes mtinfo, mtinfo_drive and mtinfo_part.
	Reduce fhandler_dev_tape methods to mostly just calling appropriate
	mtinfo_drive methods.
	(mtinfo_init): New function adding the mtinfo shared memory area.
	* mtinfo.h: New file, containing the definition of the new tape
	driver classes.
	* shared.cc: Include mtinfo.h.
	(offsets): Add entry for mtinfo shared memory area.
	(memory_init): Call mtinfo_init.
	* shared_info.h (shared_locations): Add SH_MTINFO shared location.
	* include/cygwin/mtio.h: Change and add various comments.  Add GMT_xxx
	macros for new generic flags.  Add MT_ST_xxx bitfield definitions
	for MTSETDRVBUFFER ioctl.
	* include/cygwin/version.h: Bump API minor version number.

2004-03-26  Christopher Faylor  <cgf@redhat.com>

	* path.cc (path_conv::check): Use 'strchr' rather than 'strrchr' to
	find end of string, for efficiency.

2004-03-26 Thomas Pfaff <tpfaff@gmx.net>

	* include/cygwin/_types.h: New file.
	* include/sys/lock.h: Ditto.
	* include/sys/stdio.h: Ditto.
	* thread.cc: Include sys/lock.h
	(__cygwin_lock_init): New function.
	(__cygwin_lock_init_recursive): Ditto.
	(__cygwin_lock_fini): Ditto.
	(__cygwin_lock_lock): Ditto.
	(__cygwin_lock_trylock): Ditto.
	(__cygwin_lock_unlock): Ditto.
	(pthread::atforkprepare): Lock file pointer before fork.
	(pthread::atforkparent): Unlock file pointer after fork.
	(pthread::atforkchild): Ditto.

2004-03-26  Corinna Vinschen  <corinna@vinschen.de>

	* sem.cc (semget): Fix debug string.
	(semop): Ditto.
	* shm.cc (fixup_shms_after_fork): Ditto.
	(shmat): Ditto.
	(shmdt): Ditto.
	(shmget): Ditto.

2004-03-26  Christopher Faylor  <cgf@redhat.com>

	* sigproc.cc (wait_sig): Make sure that SIGCHLD is handled regardless
	of whether a signal is queued.

2004-03-26  Christopher Faylor  <cgf@redhat.com>

	* sigproc.cc (wait_sig): Report if not trying to send signal due to
	queued signal.

2004-03-25  Christopher Faylor  <cgf@redhat.com>

	* path.cc (normalize_posix_path): Reorganize to short circuit to DOS
	path handling whenever a '\' is detected.

	* signal.cc (sigaction): Make strace output more informative.
	* sigproc.cc (pending_signals::add): Just index directly into signal
	array rather than treating the array as a heap.
	(pending_signals::del): Ditto.
	(wait_sig): Don't send signal if we already have a similar signal
	queued.
	* sigproc.h (call_signal_handler_now): Remove obsolete declaration.

2004-03-23  Gerd Spalink  <Gerd.Spalink@t-online.de>

	* fhandler_dsp.cc (fhandler_dev_dsp::write): Remove type
	cast from argument to audio_out_->parsewav() to make reference
	work properly. Now .wav file headers are properly discarded.

2004-03-23  Corinna Vinschen  <corinna@vinschen.de>

	* fhandler_disk_file.cc (fhandler_base::fstat_fs): Use created
	handle regardless of nohandle state.  Clean up afterwards.

2004-03-23  Gerd Spalink  <Gerd.Spalink@t-online.de>

	* autoload.cc: Load eight more functions for waveIn support.
	* fhandler.h (class fhandler_dev_dsp): Add class Audio, class Audio_in
	and class Audio_out members and audio_in_, audio_out_ pointers so
	that future changes are restricted to file fhandler_dsp.cc.  
	* fhandler_dsp.cc (fhandler_dev_dsp::Audio): Add this class to treat
	things common to audio recording and playback.
	Add more format conversions.
	(fhandler_dev_dsp::Audio::queue): New queues for buffer management
	to fix incomplete cleanup of buffers passed to the wave device.
	(fhandler_dev_dsp::Audio_in): New, added class to implement audio
	recording.
	(fhandler_dev_dsp::Audio_out): Rework to use functionality provided
	by fhandler_dev_dsp::Audio.  Allocate memory audio buffers late,
	just before write.
	(fhandler_dev_dsp::Audio_out::start): Size of wave buffer allocated
	here depends on audio rate/bits/channels.
	(fhandler_dev_dsp::Audio_in::start): Ditto.
	(fhandler_dev_dsp::setupwav): Replaced by following function.
	(fhandler_dev_dsp::Audio_out::parsewav): Does not setup wave device
	any more. Discard wave header properly.
	(fhandler_dev_dsp::open): Add O_RDONLY and_RDWR as legal modes.
	Protect against re-open. Activate fork_fixup.
	(fhandler_dev_dsp::ioctl): Protect against actions when audio is
	active.  SNDCTL_DSP_GETFMTS only returns formats supported by
	mmsystem wave API, not all supported formats.  SNDCTL_DSP_GETBLKSIZE
	result now depends on current audio format.
	(fhandler_dev_dsp::fixup_after_fork): Call fork_fixup for the Audio
	classes to let them duplicate the CRITICAL_SECTION.

2004-03-19  Pierre Humblet  <pierre.humblet@ieee.org>
	    Christopher Faylor  <cgf@redhat.com>

	* init.cc (munge_threadfunc): Handle all instances of search_for.
	(prime_threads): Test threadfunc_ix[0].

2004-03-21  Christopher Faylor  <cgf@redhat.com>

	* cygheap.cc (init_cheap): Set initial_sz to something or suffer
	spurious output.
	(cygheap_fixup_in_child): Set alloc_sz to passed in size to ensure that
	children will have the right size heap.
	(_csbrk): Make output conditional on DEBUGGING.

2004-03-21  Christopher Faylor  <cgf@redhat.com>

	* cygheap.cc (init_cheap): Conditionalize debugging code.

2004-03-21  Christopher Faylor  <cgf@redhat.com>

	* cygheap.cc (init_cheap): Add ability to specify minimal cygwin heap
	size when debugging.
	(_csbrk): Report error in allocation to stderr.
	(ccalloc): Ditto.
	* dtable.cc (dtable::find_fifo): Remove use of atoms.
	* dtable.h (dtable::find_fifo): Ditto.
	* fhandler.h (fhandler_fifo): Ditto.
	* fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Ditto.
	(fhandler_fifo::set_use): Ditto.
	(fhandler_fifo::open_not_mine): Ditto.
	(fhandler_fifo::open): Ditto.
	* pinfo.cc (_pinfo::commune_recv): Ditto.
	(_pinfo::commune_send): Ditto.

2004-03-19  Pierre Humblet <pierre.humblet@ieee.org>

        * dir.cc (rmdir): Reorganize error handling to reduce indentation.
 
2004-03-19  Christopher Faylor  <cgf@redhat.com>

	* include/cygwin/version.h: Bump DLL minor number to 10.

2004-03-18  Christopher Faylor  <cgf@redhat.com>

	* child_info.h (CURR_CHILD_INFO_MAGIC): Reset to new value.
	(child_info::cygheap_alloc_sz): New field.
	* cygheap.cc (init_cheap): Reduce size of cygwin stack until minimal
	hit when attempting initial allocation.
	(cygheap_setup_for_child): Use alloc_sz to create secondary memory
	mapped entry.  Store alloc_sz in cygheap_alloc_sz.
	(cygheap_fixup_in_child): Use cygheap_alloc_sz to map parent's cygheap.
	* cygheap.h (_CYGHEAPSIZE_SLOP): New define.
	(CYGHEAPSIZE): Use _CYGHEAPSIZE_SLOP.

2004-03-18  Corinna Vinschen  <corinna@vinschen.de>

	* fhandler_proc.cc (format_proc_meminfo): On NT, try to figure out
	real swap file usage by requesting SystemPagefileInformation.  Use
	GlobalMemoryStatus as fallback.
	* ntdll.h (_SYSTEM_INFORMATION_CLASS): Add SystemPagefileInformation.
	(struct _SYSTEM_PAGEFILE_INFORMATION): Define.

2004-03-17  Christopher Faylor  <cgf@redhat.com>

	* pipe.cc (fhandler_pipe::dup): Fix debugging message.

2004-03-17  Christopher Faylor  <cgf@redhat.com>

	* include/cygwin/version.h: Bump DLL minor number to 9.

2004-03-16  Christopher Faylor  <cgf@redhat.com>

	* sigproc.cc (proc_terminate): Release sync_proc_subproc when done
	terminating or suffer potential hangs.
	(get_proc_lock): Reorganize debugging output slightly.

2004-03-15  Christopher Faylor  <cgf@redhat.com>

	* cygtls.cc (_cygtls::fixup_after_fork): Just manipulate the signal
	stack if a signal occurred during the parent's fork.  Otherwise leave
	it alone.

2004-03-15  Christopher Faylor  <cgf@redhat.com>

	* exceptions.cc (try_to_debug): Report on tid of caller.

	* sync.cc (muto::acquire): Fix some races.
	* sync.h (muto): Expose some fields for easier debugging.

2004-03-15  Corinna Vinschen  <corinna@vinschen.de>

	* fhandler.h (fhandler_dev_tape::tape_get_pos): Declare with extra
	parameter for partition number.
	(fhandler_dev_tape::_tape_set_pos): Ditto.
	(fhandler_dev_tape::tape_partition): New method.
	(fhandler_dev_tape::tape_set_partition): New method.
	* fhandler_tape.cc (fhandler_dev_tape::open): Call private methods
	directly instead of ioctl.
	(fhandler_dev_tape::ioctl): Use long erase on MTERASE by default.
	Don't use absolute positioning on MTSEEK.  Call tape_set_partition
	on MTSETPART, tape_partition on MTMKPART.
	(fhandler_dev_tape::tape_get_pos): Add partition number parameter.
	Prefer logical position information over absolute position information.
	Return partition number.
	(fhandler_dev_tape::_tape_set_pos): Add partition number parameter.
	Use in SetTapePosition.
	(fhandler_dev_tape::tape_set_pos): Remove special TAPE_ABSOLUTE_BLOCK
	handling.
	(fhandler_dev_tape::tape_erase): Rewind before erasing.
	(fhandler_dev_tape::tape_status): Rearrange slightly. Try to get a
	MediaType even if no tape is loaded. Store active partition in
	mt_resid as on Linux.
	(fhandler_dev_tape::tape_partition): New method.
	(fhandler_dev_tape::tape_set_partition): New method.
	* include/cygwin/mtio.h: Fix copyright. Add comment to explain
	mt_resid content.
	* include/cygwin/version.h: Bump API minor number.

2004-03-14  Christopher Faylor  <cgf@redhat.com>

	* cygtls.cc (_cygtls::remove): Call remove_wq even when we can't
	necessarily get the cygtls table lock.
	* cygtls.h (_cygtls::remove_wq): Add wait argument.
	* sigproc.cc (_cygtls::remove_wq): Honor wait argument when acquiring
	lock.
	(proc_terminate): Don't NULL sync_proc_subproc since other threads may
	still try to access it.

2004-03-14  Corinna Vinschen  <corinna@vinschen.de>

	* errno.cc (errmap): Map ERROR_BEGINNING_OF_MEDIA and
	ERROR_SETMARK_DETECTED to EIO instead of ESPIPE.
	Handle ERROR_FILEMARK_DETECTED.
	* fhandler_tape.cc (TAPE_FUNC): Add comment that ERROR_BUS_RESET
	has still to be handled correctly.
	(fhandler_dev_tape::open): Accomodate fact that get.mt_dsreg
	also contains density code.
	(fhandler_dev_tape::ioctl): Rearrange slightly.  Reset devbuf also on
	MTNOP, MTWSM, MTSETBLK, MTSETDRVBUFFER, MTSETPART and MTMKPART.
	(fhandler_dev_tape::tape_set_pos): Rearrange.  Match behaviour to
	the Linux tape driver.
	(fhandler_dev_tape::tape_status): Call IOCTL_STORAGE_GET_MEDIA_TYPES_EX
	if available.  Return device type and density code in appropriate
	mtget members.
	* wincap.h (wincaps::has_ioctl_storage_get_media_types_ex): New element.
	* wincap.cc: Implement above element throughout.
	* include/cygwin/mtio.h: Add tape device types as returned by
	IOCTL_STORAGE_GET_MEDIA_TYPES_EX.
	(MT_TAPE_INFO): Use above type codes.
	(struct mtget): Change mt_dsreg comment.

2004-03-14  Pierre Humblet <pierre.humblet@ieee.org>

	* dir.cc (rmdir): Construct real_dir with flag PC_FULL.
	Use a loop instead of recursion to handle the current directory.

2004-03-14  Christopher Faylor  <cgf@redhat.com>

	* cygtls.cc (_cygtls::remove): Call remove_wq to ensure that wait stuff
	is removed from proc_subproc linked list.
	* cygtls.h (_cygtls::remove_wq): Declare.
	* sigproc.cc (_cygtls::remove_wq): Define.
	(proc_subproc): Label event handle appropriately.
	* spawn.cc (spawn_guts): Return -1 when wait() fails for spawn types
	that require waiting.

2004-03-13  Corinna Vinschen  <corinna@vinschen.de>

	* errno.cc (errmap): Handle ERROR_BUS_RESET.
	* fhandler.h (fhandler_dev_raw::write_file): New method, created
	from former static function.
	(fhandler_dev_raw::read_file): Ditto.
	(reset_devbuf): New inline method.
	(class fhandler_dev_tape): Add TAPE_GET_DRIVE_PARAMETERS
	member `dp'.
	(fhandler_dev_tape::write_file): New method.
	(fhandler_dev_tape::read_file): Ditto.
	(fhandler_dev_tape::tape_get_feature): Convert to inline method.
	(fhandler_dev_tape::tape_error): New method, created from former
	static function. 
	(fhandler_dev_tape::tape_get_blocksize): Remove declaration.
	* fhandler_raw.cc (fhandler_dev_raw::write_file): New method, created
	from former static function.
	(fhandler_dev_raw::read_file): Ditto.
	(fhandler_dev_raw::writebuf): Accomodate the fact that no devbuf
	exists under variable block size condition.
	(fhandler_dev_raw::raw_read): Ditto. Add local p pointer to simplify
	pointer arithmetic.
	(fhandler_dev_raw::raw_write): Always set devbufend to 0 when starting
	with writing. Accomodate the fact that no devbuf exists under
	variable block size condition.
	* fhandler_tape.cc: Various formatting changes.
	(TAPE_FUNC): New macro. Use throughout as tape function loop.
	(get_ll): Convert into macro.
	(IS_EOM): New macro.
	(IS_EOF): New macro.
	(fhandler_dev_tape::is_eom): Use IS_EOM macro.
	(fhandler_dev_tape::is_eof): Use IS_EOF macro.
	(fhandler_dev_tape::write_file): New method.
	(fhandler_dev_tape::read_file): New method.
	(fhandler_dev_tape::open): Get drive information block here once.
	(fhandler_dev_tape::lseek): Remove unneeded duplicate code.
	(fhandler_dev_tape::dup): Duplicate drive information block.
	(fhandler_dev_tape::ioctl): Remove drvbuf in variable block size mode.
	Return ERROR_INVALID_BLOCK_LENGTH instead of ERROR_MORE_DATA if
	buffer contains data which would get lost on buffer size changing.
	Use absolute tape positioning also if drive only supports logical
	block positioning.
	(fhandler_dev_tape::tape_error): New method, created from former
	static function.
	(fhandler_dev_tape::tape_get_pos): Allow logical block reporting.
	Workaround tape driver bug.
	(fhandler_dev_tape::_tape_set_pos): Reset device buffer and flags
	after successful repositioning.
	(fhandler_dev_tape::tape_set_pos): Allow logical block positioning.
	Workaround tape driver bug.
	(fhandler_dev_tape::tape_erase): Use dp instead of calling
	GetTapeParameters.
	(fhandler_dev_tape::tape_prepare): Ditto.
	(fhandler_dev_tape::tape_get_blocksize): Remove.
	(fhandler_dev_tape::tape_set_blocksize): Don't call tape_get_blocksize.
	Error handling already done in fhandler_dev_tape::ioctl.
	(fhandler_dev_tape::tape_status): Remove local `dp' variable.
	Accomodate logical tape reporting.  Call tape_get_feature instead
	of accessing feature words directly.
	(fhandler_dev_tape::tape_compression): Use dp instead of calling
	GetTapeParameters.  Fix resetting datcompression.

2004-03-12  Christopher Faylor  <cgf@redhat.com>

	* wait.cc (wait4): Initialize pointer on entry.  Avoid calling
	call_signal_handler twice since that guarantees exiting with errno set
	to EINTR.

2004-03-12  Corinna Vinschen  <corinna@vinschen.de>

	* exceptions.cc (sigpacket::process): Simplify code slightly.

2004-03-11  Christopher Faylor  <cgf@redhat.com>

	* cygtls.h (waitq): Declare structure here.
	(_cygtls::wq): Declare.
	* cygtls.cc (_cygtls::fixup_after_fork): Clear wq.thread_ev to avoid
	using an invalid event handle in forked process.
	* dcrt0.cc (waitq_storage): Delete.
	(threadstuff): Remove waitq_storage.
	* perthread.h (per_thread_waitq): Delete.
	(waitq_storage): Delete declaration.
	* sigproc.cc (sigproc_init): Remove perthread waitq consideration.
	* sigproc.h (waitq): Delete declaration.
	* wait.cc (wait4): Use _my_tls waitq structure rather than per_thread.

2004-03-11  Pierre Humblet  <pierre.humblet@ieee.org>

	* cygtls.h (_cygtls::newmask): Delete member.
	(_cygtls::deltamask): New member.
	* gendef (_sigdelayed): Replace the call to set_process_mask by a call
	to set_process_mask_delta.
	* exceptions.cc (handle_sigsuspend): Do not filter tempmask.  Or
	SIG_NONMASKABLE in deltamask as a flag.
	(_cygtls::interrupt_setup): Set deltamask only.
	(set_process_mask_delta): New function.
	(_cygtls::call_signal_handler): Replace the first call to
	set_process_mask by a call to set_process_mask_delta.
	* tlsoffsets.h: Regenerate.

2004-03-11  Christopher Faylor  <cgf@redhat.com>

	* cygtls.cc (_cygtls::fixup_after_fork): Remove unneeded setting of
	oldmask.
	* exceptions.cc: Remove some __I386__ conditionals.
	(handle_exceptions): Move ppid test to outside of a loop for
	efficiency.
	(setup_handler): Make debugging output more wordy.
	(_cygtls::call_signal_handler): To avoid a race, use lock/unlock to
	synchronize with signal thread and ensure that signal_arrived event has
	actually been set.
	* gendef (_sigfe): Use ebx for all sigstack manipulations to ensure
	that the register is saved.  Move setting of incyg to within stack lock
	to avoid setup_handler confusion.
	(_sigbe): Use ebx for all sigstack manipulations to ensure that the
	register is saved.
	(_cygtls::pop): Ditto.
	(_cygtls::lock): Ditto.
	(stabilize_sig_stack): Ditto.
	(setjmp): Ditto.
	(longjmp): Ditto.

2004-03-08  Jaakko Hyvatti  <jaakko.hyvatti@iki.fi>

	* fhandler_serial.cc (fhandler_serial::ioctl): Implement TIOCSBRK and
	TIOCCBRK.
	* include/sys/termios.h: Define TIOCSBRK and TIOCCBRK.

2004-03-08  Christopher Faylor  <cgf@redhat.com>

	* exceptions.cc (setup_handler): Avoid suspending a thread if it is in
	a cygwin function, in an exception, spinning, or locked.
	* gendef (_sigfe): Move incyg setting earlier.
	(sigreturn): Set incyg flag to avoid interrupting called cygwin
	functions.
	(sigdelayed): Ditto.
	(stabilize_sig_stack): Ditto.

	* sigproc.cc (proc_subproc): Don't restore process lock early in exec
	case.

	* cygtls.h: Reorganize fields in _cygtls slightly.
	* tlsoffsets.h: Regenerate.

2004-03-06  Christopher Faylor  <cgf@redhat.com>

	* fork.cc (fork_parent): Save parent pid in a temporary variable since
	child could conceivably exit before function returns, rendering the
	child's shared memory area invalid.

	* cygtls.h (_cygtls::incyg): Declare new field.
	(_cygtls::in_exception): Define new function.
	* exceptions.cc (setup_handler): Remove locked flag.  Use 'incyg' flag
	and in_exception function to determine when we're in a cygwin function.
	(_cygtls::call_signal_handler): Decrement incyg flag prior to calling a
	handler.  Increment it on return.
	* gendef (_sigfe): Increment incyg flag.  Use testl for zero testing
	rather than orl, for consistency.
	(_sigbe): Decrement incyg flag.  Use testl for zero testing rather than
	orl, for consistency.
	(_cygtls::pop): Use testl for zero testing rather than orl, for
	consistency.
	(stabilize_sig_stack): Ditto.

	* tlsoffsets.h: Regenerate.

2004-03-05  Christopher Faylor  <cgf@redhat.com>

	* gendef (sigdelayed): Handle return here rather than going through
	sigbe to ensure that flags are properly restored.

2004-03-04  Thomas Pfaff  <tpfaff@gmx.net>

	* include/pthread.h (PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP): New
	define.
	(PTHREAD_NORMAL_MUTEX_INITIALIZER_NP): Ditto.
	(PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP): Ditto.
	* thread.cc (pthread_mutex::is_good_initializer): Check for all
	posssible initializers
	(pthread_mutex::is_good_initializer_or_object): Ditto.
	(pthread_mutex::is_good_initializer_or_bad_object): Ditto.
	(verifyable_object_isvalid): Support up to three static initializers.
	(verifyable_object_isvalid (void const *,long)): Remove.
	(pthread_cond::is_good_initializer_or_bad_object): Remove unneeded
	objectState var.
	(pthread_cond::init): Condition remains unchanged when creation has
	failed.
	(pthread_rwlock::is_good_initializer_or_bad_object): Remove unneeded
	objectState var.
	(pthread_rwlock::init): Rwlock remains unchanged when creation has
	failed.
	(pthread_mutex::init): Remove obsolete comment.  Mutex remains
	unchanged when creation has failed.  Add support for new initializers.
	(pthread_mutex_getprioceiling): Do not create mutex, just return
	ENOSYS.
	(pthread_mutex_lock): Simplify.
	(pthread_mutex_trylock): Remove unneeded local themutex.
	(pthread_mutex_unlock): Just return EPERM if mutex is not initialized.
	(pthread_mutex_setprioceiling): Do not create mutex, just return
	ENOSYS.
	* thread.h (verifyable_object_isvalid): Support up to three static
	initializers.
	(verifyable_object_isvalid (void const *,long)): Remove prototype.
	(pthread_mutex::init): Add optional initializer to parameter list.

2004-03-03  Christopher Faylor  <cgf@redhat.com>

	* gendef (sigreturn): Call stabilize_sig_stack to ensure that there are
	no pending signals.  Restore edx later.
	(sigdelayed): Save edx earlier.

	* malloc_wrapper.cc (malloc_init): Add some more debugging output.

2004-03-02  Corinna Vinschen  <corinna@vinschen.de>

	* fhandler_raw.cc (fhandler_dev_raw::raw_read): When reading with
	variable block size, read only one block, read directly into user
	supplied buffer, return ENOMEM if user supplied buffer is smaller
	than size of next block to read.  Use read2 instead of bytes_to_read
	to count number of bytes read.
	* fhandler_tape.cc (fhandler_dev_tape::open): Add debug output.

2004-02-26  Brian Ford  <ford@vss.fsi.com>

	* miscfuncs.cc (check_invalid_virtual_addr): Assure the last page
	in the range is always tested.  Add appropriate const.
	* mmap.cc (mmap_record::alloc_fh): Remove unused static path_conf object.

2004-02-25  Christopher Faylor  <cgf@redhat.com>

	* exceptions.cc (setup_handler): Signal event for any sigwaitinfo, if it
	exists, to force signal to be handled.  Zero event here to prevent
	races.
	* signal.cc (sigwaitinfo): Use local handle value for everything since
	signal thread could zero event element at any time.  Detect when
	awaking due to thread not in mask and set return value and errno
	accordingly.  Don't set signal number to zero unless we've recognized
	the signal.
	* sigproc.cc (sigq): Rename from sigqueue throughout.

	* thread.cc (pthread::join): Handle signals received while waiting for
	thread to terminate.

2004-02-25  Christopher Faylor  <cgf@redhat.com>

	* cygwin.din: Export sighold, sigqueue.
	* exceptions.cc (sighold): Define new function.
	* signal.cc (handle_sigprocmask): Set correct errno for invalid signal.
	Simplify debugging output.
	(sigqueue): Define new function.
	* include/cygwin/signal.h (sighold): Declare new function.
	(sigqueue): Ditto.
	* include/cygwin/version.h: Bump API minor version number.
	* include/limits.h (TIMER_MAX): Define.
	(_POSIX_TIMER_MAX): Ditto.

2004-02-25  Brian Ford <ford@vss.fsi.com>,
	    Corinna Vinschen  <corinna@vinschen.de>

	* miscfuncs.cc (check_invalid_virtual_addr): New function.
	* winsup.h (check_invalid_virtual_addr): Declare.
	* mmap.cc (munmap): Call check_invalid_virtual_addr instead of
	IsBadReadPtr.

2004-02-24  Christopher Faylor  <cgf@redhat.com>

	* gendef (stabilize_sig_stack): Correctly align this pointer for call
	to _cygtls::call_signal_handler.
	* gentls_offsets: Output sizeof field.
	* tlsoffsets.h: Regenerate.

2004-02-24  Christopher Faylor  <cgf@redhat.com>

	* dcrt0.cc (_dll_crt0): Don't check sync_startup if threadfunc_ix is set.

	* external.cc (cygwin_internal): Implement CW_GET_BINMODE.
	* include/sys/cygwin.h: Declare CW_GET_BINMODE.

2004-02-24  Christopher Faylor  <cgf@redhat.com>

	* dcrt0.cc (_dll_crt0): Add some stern internal errors.

2004-02-24  Corinna Vinschen  <corinna@vinschen.de>

	* thread.cc (pthread::cancelable_wait): Rearrange slightly.
	Add do_sig_wait parameter.  Wait for signal_arrived if set to true.
	Return WAIT_SIGNALED if signal arrived.
	(pthread_cond::wait): Accomodate change to pthread::cancelable_wait.
	(pthread::join): Ditto.
	(semaphore::_timedwait): Ditto.
	(semaphore::_wait): Ditto.  Change to return int to allow status
	feedback.
	(semaphore::wait): Return return value from semaphore::_wait.
	* thread.h (WAIT_SIGNALED): New definition.
	(pthread::cancelable_wait): Change declaration.  Define do_sig_wait
	as false by default to not interfere with existing calls accidentally.
	(semaphore::_wait): Declare int.

2004-02-21  Christopher Faylor  <cgf@redhat.com>

	* exceptions.cc (sigpacket::process): Make sure that tls is filled in
	for SIGSTOP condition.
	(_cygtls::call_signal_handler): Restore signal mask using saved oldmask
	rather than current oldmask.

2004-02-20  Christopher Faylor  <cgf@redhat.com>

	* path.cc (conv_path_list): Return error condition.
	(copy1): New function.
	(copyenc): New function.
	(mount_item::fnmunge): Return error condition.  Use new functions to
	copy strings.
	(mount_item::build_win32): Ditto.
	(mount_info::conv_to_win32_path): Return error condition.
	(cygwin_conv_to_posix_path): Return result of path conversion.
	(cygwin_conv_to_full_posix_path): Ditto.
	(return_with_errno): New macro.
	(cygwin_win32_to_posix_path_list): Use new macro to potentially set
	errno.
	(cygwin_posix_to_win32_path_list): Ditto.
	* path.h (mount_item::fnmunge): Add size argument.
	(mount_item::build_win32): Ditto.

2004-02-20  Corinna Vinschen  <corinna@vinschen.de>

	* getopt.c: Avoid useless compiler warnings.

2004-02-20  Corinna Vinschen  <corinna@vinschen.de>

	* getopt.c: Replace with latest vanilla(!) OpenBSD version 1.16.

2004-02-18  Christopher Faylor  <cgf@redhat.com>

	* fork.cc (fork_child): Invert sense of test which defeated correct
	handling in a fork from a non-main thread.

	* dcrt0.cc (initial_env): Eliminate parameter and just send DebugBreak
	when appropriate.
	(dll_crt0_0): Reflect parameter change to initial_env.
	(dll_crt0_1): Don't call initial_env.

2004-02-18  Christopher Faylor  <cgf@redhat.com>

	* gendef (stabilize_sig_stack): New function.
	(setjmp): Import, add sig stack handling.  Store sig stack info.
	(longjmp): Call stabilize_sig_stack.  Restore sig stack info.
	* config/i386/setjmp.c: Remove.

2004-02-17  Corinna Vinschen  <corinna@vinschen.de>

	* fork.cc (fork_child): Move fixup_shms_after_fork so that
	signal_arrived is initialized when calling it.

2004-02-17  Christopher Faylor  <cgf@redhat.com>

	* Makefile.in (clean): Clean libserver, too.

	* fhandler.cc (fhandler_base::~fhandler_base): Remove path_conv cleanup.
	* syscalls.cc (chroot): Ditto.
	* path.cc (path_conv::~path_conv): Define new destructor.
	(conv_path_list_buf_size): Remove explicit path_conv cleanup.
	* path.h (path_conv::~path_conv): Declare new destructor.

2004-02-16  Christopher Faylor  <cgf@redhat.com>

	* Makefile.in: Compile flock.o with -fomit-frame-pointer.

2004-02-16  Christopher Faylor  <cgf@redhat.com>

	* Makefile.in: Compile dlfcn.o with -fomit-frame-pointer.

2004-02-16  Christopher Faylor  <cgf@redhat.com>

	* Makefile.in: Compile delqueue.o with -fomit-frame-pointer.

2004-02-16  Pierre Humblet <pierre.humblet@ieee.org>

	* syscalls.cc (rename): Do not test the MoveFile error code
	where MoveFileEx exists.

2004-02-15  Christopher Faylor  <cgf@redhat.com>

	* cygheap.cc (_csbrk): Report more debugging details on failing
	condition.

2004-02-14  Christopher Faylor  <cgf@redhat.com>

	* Makefile.in: Compile syscalls.o with -fomit-frame-pointer.

	* sigproc.cc: Eliminate unused variable.

2004-02-14  Corinna Vinschen  <corinna@vinschen.de>

	* getopt.c: Replace with latest NetBSD version 1.16.  Keep Cygwin
	specific changes as minimal as possible.

2004-02-13  Christopher Faylor  <cgf@redhat.com>

	* sigproc.cc (proc_subproc): Change warning back to silent debug
	output.

2004-02-13  Christopher Faylor  <cgf@redhat.com>

	* dcrt0.cc (alloc_stack_hard_way): Revert to previous implementation.
	(alloc_stack): Ditto.
	* exceptions.cc (ctrl_c_handler): Add debugging output.

2004-02-13  Christopher Faylor  <cgf@redhat.com>

	* Makefile.in (clean): Remove sigfe.s.
	(sigfe.s): Ensure that sigfe.s will be regenerated if it does not exist.
	* dll_init.cc (dll_dllcrt0): Simplify initializing tests.

	* exceptions.cc (setup_handler): Detect when stub caller is either
	spinning or has acquired the lock after being suspended to avoid
	windows problems with suspending a win32 API call.

	* cygtls.h (_cygtls::spinning): Declare new element.
	* gendef: Remove unused _siglist_index and _siglist declaration.
	(_sigfe): Set spinning element when potentially looping, waiting for lock.
	(_sigbe): Ditto.
	(_cygtls::lock): Ditto.
	(_longjmp): Ditto.
	* tlsoffsets.h: Regenerate.
	* pinfo.cc (_pinfo::exit): Set final exit state here.  Call sigproc_terminate if
	invoked with 'norecord'.  Clear any residual _cygtls stuff.
	* winsup.h (exit_states): Define ES_FINAL.
	* spawn.cc (spawn_guts): Don't call proc_terminate specifically when
	execing.  Let _pinfo::exit handle that case.

	* sigproc.cc (wait_subproc): Always exit loop early when proc_loop_wait.

	* init.cc (munge_threadfunc): Eliminate unused argument.
	(dll_entry): Reflect above change in call to munge_threadfunc.

2004-02-11  Christopher Faylor  <cgf@redhat.com>

	* gendef (_sigbe): Zero location on pop.
	(_cygtls::pop): Ditto.

2004-02-11  Christopher Faylor  <cgf@redhat.com>

	* dcrt0.cc (alloc_stack_hard_way): Eliminate second argument.
	(alloc_stack): Remove use of 'b' throughout.

2004-02-11  Christopher Faylor  <cgf@redhat.com>

	Rename _threadinfo to _cygtls, throughout.
	* cygtls.h (_cygtls::call_signal_handler): Rename from
	call_signal_handler_now.
	(_cygtls::push): Make second argument mandatory.
	(_cygtls::fixup_after_fork): Declare new function.
	(_cygtls::lock): Ditto.
	* cygtls.cc (_cygtls::fixup_after_fork): Define new function.
	* dcrt0.cc (cygwin_finished_initializing): Define as bool.
	(alloc_stack): Use _tlstop rather than arbitrary variable in probably
	vain attempt to avoid strange fork problem on CTRL-C.
	(dll_crt0_0): Remove obsolete winpids::init call.
	* dll_init.cc (dll_dllcrt0): Detect forkee condition as equivalent to
	initializing.
	* winsup.h (cygwin_finished_initializing): Declare as bool.
	* exceptions.cc (handle_exceptions): Rely on
	cygwin_finished_initializing to determine how to handle exception
	during process startup.
	(_cygtls::call_signal_handler): Rename from call_signal_handler_now.
	(_cygtls::interrupt_now): Fill in second argument to push.
	(signal_fixup_after_fork): Eliminate.
	(setup_handler): Initialize locked to avoid potential inappropriate
	unlock.  Resume thread if it has acquired the stack lock.
	(ctrl_c_handler): Just exit if ctrl-c is hit before cygiwn has finished
	initializing.
	* fork.cc (sync_with_child): Don't call abort since it can cause exit
	deadlocks.
	(sync_with_child): Change debugging output slightly.
	(fork_child): Set cygwin_finished_initializing here.  Call _cygtls fork
	fixup and explicitly call sigproc_init.
	(fork_parent): Release malloc lock on fork failure.
	(vfork): Call signal handler via _my_tls.
	* sigproc.cc (sig_send): Ditto.
	* syscalls.cc (readv): Ditto.
	* termios.cc (tcsetattr): Ditto.
	* wait.cc (wait4): Ditto.
	* signal.cc (nanosleep): Ditto.
	(abort): Ditto.
	(kill_pgrp): Avoid killing self if exiting.
	* sync.cc (muto::acquire): Remove (temporarily?) ill-advised
	exiting_thread check.
	* gendef (_sigfe): Be more agressive in protecting stack pointer from
	other access by signal thread.
	(_cygtls::locked): Define new function.
	(_sigbe): Ditto.
	(_cygtls::pop): Protect edx.
	(_cygtls::lock): Use guaranteed method to set eax to 1.
	(longjmp): Aggressively protect signal stack.
	* miscfuncs.cc (low_priority_sleep): Reduce "sleep time" for secs == 0.
	* pinfo.cc (winpids::set): Counterintuitively use malloc's lock to
	protect simultaneous access to the pids list since there are
	pathological conditions which can cause malloc to call winpid.
	(winpids::init): Eliminate.
	* pinfo.h (winpids::cs): Eliminate declaration.
	* pinfo.h (winpids::init): Eliminate definition.

2004-02-11  Corinna Vinschen  <corinna@vinschen.de>

	* security.cc (get_nt_object_attribute): Fix error handling.

2004-02-09  Ralf Habacker  <ralf.habacker@freenet.de>

	* fhandler_socket.cc (fhandler_socket::ioctl): Add FIONREAD handling.

2004-02-08  Christopher Faylor  <cgf@redhat.com>

	* debug.h (console_printf): Define for non-debugging condition.

	* cygtls.h (_threadinfo::lock): Remove wait argument.
	(_threadinfo::interrupt_setup): Remove retaddr argument.
	* exceptions.cc (_threadinfo::interrupt_setup): Ditto.
	(_threadinfo::interrupt_now): Accommodate change to interrupt_setup
	argument.
	(setup_handler): Ditto.  Always lock sig stack prior to determining
	interrupt method.
	* gendef (_sigfe): Correct thinko regarding cmpxchg.
	(_sigbe): Ditto.
	(_threadinfo::lock): Ditto.
	(_threadinfo::pop): Eliminate left-over stack unlock.
	* sigproc.cc (proc_subproc): Change debugging output to printed
	warning.

2004-02-08  Christopher Faylor  <cgf@redhat.com>

	* localtime.cc (localtime_r): Call tzset.

	* Makefile.in: Make version.h/cygwin.din version check a warning since
	it is not foolproof.

	* cygheap.h (CYGHEAPSIZE): Bump size down.

	* cygtls.h (_threadinfo::stacklock): New element.
	(_threadinfo::pop): Make regparm.
	(_threadinfo::lock): New function.
	(_threadinfo::unlock): New function.
	* cygtls.cc (_threadinfo::push): Wait for a lock on the stack before
	performing the operation.
	(_threadinfo::pop): Move to another file.
	* cygwin.din: More SIGFE changes.
	* exceptions.cc (try_to_debug): Always display messages on console.
	(handle_exceptions): Unwind stack only when actually about to call
	sig_send.
	(setup_handler): Lock stack prior to performing any operations.
	* gendef (_sigfe): Ditto.
	(_sigbe): Ditto.
	(_threadinfo::pop): Ditto.  Move here.
	* gen_tlsoffsets: Generate positive offsets.
	* tlsoffsets.h: Regenerate.

2004-02-06  Corinna Vinschen  <corinna@vinschen.de>

	* cygserver.h (CYGWIN_SERVER_VERSION_API): Bump.
	* cygserver_ipc.h (struct proc): Add signal_arrived member.
	(ipc_set_proc_info): Inititalize blk.signal_arrived.

2004-02-06  Pierre Humblet <pierre.humblet@ieee.org>

	* uinfo.cc (cygheap_user::init): Use sec_user_nih to build a
	security descriptor. Set both the process and the default DACLs.
	* fork.cc (fork_parent): Use sec_none_nih security attributes.
	* spawn.cc (spawn_guts): Ditto.

2004-02-05  Christopher Faylor  <cgf@redhat.com>

	* cygwin.din: Make many more functions SIGFE.
	* include/cygwin/version.h (CYGWIN_VERSION_SHARED_DATA): Bump.

2004-02-05  Pierre Humblet <pierre.humblet@ieee.org>

	* security.h (SID): New macro.
	(well_known_*_sid): Change type to cygpsid.
	(cygsid::init): Delete declaration.
	* sec_helper.cc (well_known_*_sid): Define using above SID macro.
	(cygsid::init): Delete.
	* dcrt0.cc (dll_crt0_0): Do not call cygsid::init.
	* security.cc (get_user_local_groups): Change the second argument type
	to cygpsid.

2004-02-03  Christopher Faylor  <cgf@redhat.com>

	* cygtls.h (_local_storage::signamebuf): Increase size to prevent
	overflow on really odd values.
	* tlsoffsets.h: Regenerate.

2004-02-03  Christopher Faylor  <cgf@redhat.com>

	* Makefile.in (DLL_OFILES): Add strsig.o.
	* cygtls.h (_local_storage::signamebuf): New element.
	* sysconf.cc (sysconf): Implement _SC_RTSIG_MAX.
	* tlsoffsets.h: Regenerate.
	* include/limits.h (_POSIX_RTSIG_MAX): New define.
	(RTSIG_MAX): Ditto.
	* include/cygwin/signal.h (SIGRTMIN): New define.
	(SIGRTMAX): Ditto.
	(NSIG): Bump.
	* strsig.cc: New file.

2004-02-03  Jason Tishler <jason@tishler.net>

	* window.cc (Winmain): Show windows error code in error output when
	RegisterClass fails.

2004-02-02  Christopher Faylor  <cgf@redhat.com>

	* fhandler.h (*::fixup_after_exec): Eliminate unused handle argument.
	* fhandler.h (dtable::fixup_after_exec): Eliminate unused handle
	argument.
	* dcrt0.cc (dll_crt0_1): Reflect elimination of unused handle argument
	to fixup_after_exec.
	* dtable.cc (dtable::fixup_after_exec): Ditto.
	* fhandler_console.cc (fhandler_console::fixup_after_exec): Ditto.
	* fhandler_dsp.cc (fhandler_dsp::fixup_after_exec): Ditto.
	* fhandler_raw.cc (fhandler_raw::fixup_after_exec): Ditto.
	* fhandler_socket.cc (fhandler_socket::fixup_after_exec): Ditto.
	* fhandler_virtual.cc (fhandler_virtual::fixup_after_exec): Ditto.
	* pipe.cc (fhandler_pipe::fixup_after_exec): Ditto.

2004-02-02  Pierre Humblet <pierre.humblet@ieee.org>

	* spawn.cc (spawn_guts): Do not set ciresrv.parent.
	* child_info.h (child_info_spawn::~child_info_spawn): Do not close
	parent.  Update CURR_CHILD_INFO_MAGIC.
	* dcrt0.cc (dll_crt0_0): Do not close spawn_info->parent.  Pass NULL to
	cygheap->fdtab.fixup_after_exec().

2004-02-02  Christopher Faylor  <cgf@redhat.com>

	Throughout, change name from set_inheritance to set_no_inheritance to
	better reflect input arguments of this function.

	* cygheap.h (CYGHEAPSIZE): Increase size of cygheap to something closer
	to the 21st century.

2004-02-02  Corinna Vinschen  <corinna@vinschen.de>

	* cygerrno.h (set_errno): Replace semicolon with comma in non-DEBUGGING
	version to avoid compile time error.

2004-02-01  Christopher Faylor  <cgf@redhat.com>

	* cygerrno.h (set_errno): Set global errno whenever setting thread
	specific version.
	* debug.cc (__set_errno): Ditto.

	* exceptions.cc (handle_sigsuspend): Remove spurious
	sig_dispatch_pending call.
	(set_signal_mask): When there seem to be pending signals to dispatch,
	tell signal_dispatch_pending/sig_send not to specifically call any
	handlers.
	* sigproc.h (sig_dispatch_pending): Change declaration to void.
	* sigproc.cc (sig_dispatch_pending): Change definition to void.  Take
	an argument to determine whether to tell sig_send to wait for handler
	to be called.
	* sigproc.cc (sig_send): Don't call signal handler when sig ==
	__SIGFLUSHFAST.
	(wait_sig): Honor __SIGFLUSHFAST.  Guard against sigpacket::process
	nuking si_signo.
	* sigproc.h (__SIGFLUSHFAST): Define new special signal.
	(sig_dispatch_pending): Change declaration to void.  Take optional
	boolean argument.

	* fork.cc (vfork): Add debugging output.

2004-01-26  Christopher Faylor  <cgf@redhat.com>

	* exceptions.cc (sig_handle_tty_stop): Avoid races by waiting for both
	signal_arrived and for sigCONT.
	(sigpacket::process): Enforce sending of both signal_arrived and
	sigCONT, where appropriate.
	* gendef (sigreturn): Save tls pointer in ebx so that it can jump into
	sigdelayed and use the same register.

2004-01-26  Christopher Faylor  <cgf@redhat.com>

	* cygtls.cc (_threadinfo::init_thread): Add more local reent stdio
	initialization.
	* dcrt0.cc (initial_env): Can it really be true that XP doesn't allow
	attaching a debugger during DLL attach?  Add temporary workaround.
	(dll_crt0_0): Ensure that _impure_ptr stdio is initialized before any
	threads.
	(dll_crt0_1): Move _impure_ptr initialization to dll_crt0_0.
	* exceptions.cc (try_to_debug): Reinstate old method for looping while
	debugging.
	* syscalls.cc (_cygwin_istext_for_stdio): Regularize debugging output.
	Remove hopefully extraneous check.
	(setmode_helper): Add debugging output for improbable case.  Use
	"binary" rather "raw" for consistency.

2004-01-25  Christopher Faylor  <cgf@redhat.com>

	* fhandler.cc (fhandler_base::fhaccess): Avoid always setting errno to
	EACCESS when return value is < 0.  Rely on errno being set properly.

2004-01-25  Christopher Faylor  <cgf@redhat.com>

	* sigproc.cc (proc_subproc): Don't protect *child's* handle.

2004-01-24  Christopher Faylor  <cgf@redhat.com>

	* fhandler.h (fhandler_base::fhaccess): Return int for compatibility
	with access.
	* fhandler.cc (fhandler_base::fhaccess): Return int.  Use consistent
	variable name for exit value.  Exit at bottom, printing debugging
	information, like other cygwin functions.

2004-01-23  Christopher Faylor  <cgf@redhat.com>

	* cygheap.cc (init_cygheap::close_ctty): Protect YA vforkism.
	* fhandler.h (fhandler_base::has_acls): Make pass through for path_conv
	method.
	(fhandler_base::isremote): Ditto.
	(fhandler_base::is_fs_special): Ditto.
	(fhandler_base::has_attribute): Ditto.  Define new function.
	(fhandler_base::fhaccess): Declare new function based on access_worker.
	(fhandler_base::set_has_acls): Eliminate obsolete function.
	(fhandler_base::set_isremote): Ditto.
	* fhandler.cc (fhandler_base::fhaccess): Move from syscalls.cc and into
	fhandler_base class.  Use fhandler methods to access data rather than
	path_conv stuff.
	(fhandler_base::device_access_denied): Use fhaccess method.
	* fhandler_disk_file.cc (fhandler_disk_file::opendir): Ditto.
	(fhandler_base::open_fs): Remove calls to obsolete functions.
	* fhandler_virtual.cc (fhandler_virtual::open): Ditto.
	* winsup.h (access_worker): Remove obsolete access_worker declaration.
	*syscalls.cc (access_worker): Move function to fhandler.cc.
	(access): Use fhaccess method.

	* pinfo.cc (_pinfo::set_ctty): Clarify debugging output.
	* sigproc.cc (sig_dispatch_pending): Ditto.
	* syscalls.cc (setsid): Perform minor rearrangement.

2004-01-23  Pierre Humblet <pierre.humblet@ieee.org>

	* fhandler_socket.cc (fhandler_socket::create_secret_event): Avoid
	creating multiple handles. Always allow event inheritance but set the
	handle inheritance appropriately. Improve error handling.
	(fhandler_socket::check_peer_secret_event): Improve error handling.
	(fhandler_socket::close_secret_event): Simply call CloseHandle.
	(fhandler_socket::set_close_on_exec): Set secret event inheritance.

2004-01-23  Christopher Faylor  <cgf@redhat.com>

	* configure.in: Remove NEWVFORK default.
	* configure: Regenerate.
	* dcrt0.cc: Conditionalize vfork stuff throughout.
	* dtable.cc: Ditto.
	* perthread.h: Ditto.
	* pipe.cc (fhandler_pipe::close): Ditto.
	* spawn.cc (spawnve): Ditto.
	* syscalls.cc (setsid): Ditto.
	* exceptions.cc (sigpacket::process): Use macro to refer to vfork pid.

	* debug.cc (verify_handle): Define new function.
	* debug.h (VerifyHandle): Define new macro.
	(verify_handle): Declare new function
	* fhandler.cc (fhandler_base::dup): Verify that dup'ed handle is not
	supposed to be in use.
	(fhandler_base::set_inheritance): Ditto.
	(fhandler_base::fork_fixup): Ditto.
	* fhandler_socket.cc (fhandler_socket::dup): Ditto.
	* fhandler_tty.cc (fhandler_tty_slave::open): Ditto.
	* net.cc (set_socket_inheritance): Ditto.
	* pinfo.cc (pinfo_fixup_after_exec): Ditto.
	* sigproc.cc (proc_subproc): Ditto.
	(sig_send): Ditto.
	* spawn.cc (spawn_guts): Ditto.
	* thread.cc (pthread::init_mainthread): Ditto.
	* pipe.cc (fhandler_pipe::close): Close read_state with
	ForceCloseHandle since it was protected.
	(fhandler_pipe::fixup_after_exec): Protect read_state handle.
	(fhandler_pipe::dup): Correctly close open handles on error condition.
	Verify that dup'ed handle is not supposed to be in use.
	(fhandler_pipe::create): Protect read_state.

2004-01-23  Christopher Faylor  <cgf@redhat.com>

	* exceptions.cc (sig_handle_tty_stop): Fix boneheaded mistake by using
	correct check for parent state rather than inverted check mistakenly
	introduced on 2003-09-15.

2004-01-22  Brian Ford  <ford@vss.fsi.com>

	* fhandler_serial.cc (fhandler_serial::raw_write): Prevent a deadlock
	when the input buffer overflows.
	(fhandler_serial::raw_read): Correct to print the actual error and only
	call PurgeComm when necessary.

2004-01-22  Christopher Faylor  <cgf@redhat.com>

	* dcrt0.cc (reent_data): Make global.
	* cygwin.din: Reexport reent_data.

2004-01-22  Christopher Faylor  <cgf@redhat.com>

	* cygtls.cc (_threadinfo::remove): Don't assume that we are removing
	_my_tls.
	* exceptions.cc (setup_handler): Improve debugging output.
	(call_signal_handler_now): Remove ill-advised debugger call.
	* sigproc.cc (sigcomplete_main): Delete.
	(sig_send): Honor FIXME and avoid using main thread's completion event
	for everything or suffer races.
	(pending_signals::add): Default stored mask to current process mask
	rather than mask at time of signal send.
	(wait_sig): Add debugging output.
	* sigproc.h (sigpacket::mask_storage): Delete.

2004-01-22  Christopher Faylor  <cgf@redhat.com>

	* fhandler.cc (fhandler_base::open): Revert isfs change.

2004-01-21  Christopher Faylor  <cgf@redhat.com>

	* devices.in: Change raw com device to more correct form.

2004-01-21  Christopher Faylor  <cgf@redhat.com>

	* fhandler.cc (fhandler_base::open): Use major numbers rather than
	device numbers to control special behavior for devices which take
	units.
	* fhandler_raw.cc (fhandler_dev_raw::writebuf): Ditto.
	(fhandler_dev_raw::fstat): Ditto.
	(fhandler_dev_raw::open): Ditto.
	(fhandler_dev_raw::ioctl): Ditto.

2004-01-21  Nicholas Wourms  <nwourms@netscape.net>

	* signal.cc (sigaction): Fix if-statement typo.

2004-01-21  Christopher Faylor  <cgf@redhat.com>

	* cygtls.cc (handle_threadlist_exception): Change logic, improve
	debugging output.

2004-01-21  Christopher Faylor  <cgf@redhat.com>

	* fhandler_tty.cc (fhandler_tty::ioctl): Semi-revert 2003-09-26 change
	for TIOCSWINSZ.  It is not an error for ioctl_request_event to be
	missing.

2004-01-20  Christopher Faylor  <cgf@redhat.com>

	* sigproc.cc (pending_signals::save): New function.
	(pending_signals::restore): Ditto.
	(sig_clear): Save/restore current queue pointer.
	(wait_sig): Delete signals marked as such.
	* sigproc.h (__SIGDELETE): New enum.

2004-01-20  Christopher Faylor  <cgf@redhat.com>

	* include/cygwin/version.h: Bump DLL minor number to 8.

	* cygmalloc.h: Make more concessions to attempts to get debugging
	malloc working.
	* debug.h: Ditto.
	* dlmalloc.cc: Ditto.
	* dlmalloc.h: Ditto.
	* malloc_wrapper.cc: Ditto.

	* perthread.h (perthread::create): Use calloc to ensure zeroed memory.

2004-01-20  Christopher Faylor  <cgf@redhat.com>

	* sec_acl.cc (setacl): Make sure sd_ret is large enough.

2004-01-19  Christopher Faylor  <cgf@redhat.com>

	* sigproc.cc (sigproc_terminate): Don't close sendsig handle when
	execing since we're not closing what we think we're closing.
	(sig_send): Improve debugging when exiting due to no_signals_available.

	* wincap.h (wincaps::cant_debug_dll_entry): New element.
	* wincap.cc: Implement above element throughout.
	* dcrt0.cc (initial_env): Accommodate changes necessary to allow
	initial debugging for systems which do not allow debugging in
	dll_entry.
	(dll_crt0_0): Add initial_env call back here.

	* Makefile.in (install-man): Use mandir as target for installation.

2004-01-19  Christopher Faylor  <cgf@redhat.com>

	* include/cygwin/version.h: Bump DLL minor number to 7 (should have been
	done earlier).

2004-01-19  Christopher Faylor  <cgf@redhat.com>

	* cygwin/include/signal.h: Add copyright notice.

	* cygwin.din: Make clock SIGFE.  Add clock_gettime, sigwaitinfo,
	timer_create, timer_delete, timer_settime.
	* include/cygwin/version.h: Reflect above additions.
	* fork.cc (fork_child): Call fixup_timers_after_fork.
	* signal.cc (sigwait): Remove unused variable.
	* timer.cc: New file.
	(clock_gettime): Define new function.
	(timer_tracker): Define new struct used by timer functions.
	(timer_tracker::timer_tracker): New function.
	(to_us): New function.
	(timer_thread): New function.
	(timer_tracker::settime): New function.
	(timer_create): New function.
	(timer_settime): New function.
	(timer_delete): New function.
	(fixup_timers_after_fork): New function.
	* cygthread.cc: Bump thread count.

2004-01-17  Christopher Faylor  <cgf@redhat.com>

	* signal.cc (sigwaitinfo): Define new function.
	(sigwait): Redefine based on sigwaitinfo.
	* include/cygwin/signal.h (sigwaitinfo): Declare.
	(sigwait): Ditto.

2004-01-17  Christopher Faylor  <cgf@redhat.com>

	* dtable.cc (dtable::vfork_parent_restore): Avoid double close of ctty
	when ctty == ctty_on_hold.

2004-01-16  Christopher Faylor  <cgf@redhat.com>

	* cygtls.h (_threadinfo::threadkill): New element.
	(_threadinfo::set_threadkill): Declare new function.
	(_threadinfo::reset_threadkill): Declare new function.
	* dcrt0.cc (dcrt0_1): Call here so that it will be possible to attach
	to running process with #(*& Windows Me/9x.
	(initial_env): Try to initialize strace if uninitialized.
	* gendef: Don't zero signal if threadkill is set since that will happen
	in the called function.
	* signal.cc (sigwait): Ensure cleanup in error conditions.
	* sigproc.cc (sig_send): Clear packet mask storage.
	(wait_subproc): Fill in child exit code in siginfo_t structure.
	* thread.cc (pthread_kill): Set threadkill flag.
	* tlsoffsets.h: Regenerate.

2004-01-16  Christopher Faylor  <cgf@redhat.com>

	Throughout, use siginfo_t to fill out all signal information for
	"kernel" signals.
	* cygtls.h (_threadinfo::set_siginfo): Declare new function.
	* cygtls.cc (_threadinfo::set_siginfo): Define new function.
	* dcrt0.cc (do_exit): Accommodate siginfo_t considerations.
	* exceptions.cc (handle_exceptions): Ditto.
	(sig_handle_tty_stop): Ditto.
	(ctrl_c_handler): Use killsys() to send signal.
	(sigpacket::process): Rename from sig_handle.  Use siginfo_t field from
	sigpacket for everything.
	(tty_min::kill_pgrp): Accommodate siginfo_t considerations.
	(fhandler_termios::bg_check): Ditto.
	* fhandler_tty.cc (fhandler_tty_slave::ioctl): Use killsys() to send signal.
	* signal.cc (kill_worker): Rewrite to use siginfo_t second argument.
	(kill_pgrp): Ditto.
	(kill0): Define new function pulled from kill().
	(kill): Rewrite as frontend to kill0.
	(killsys): Define new function.
	* sigproc.cc (sigelem): Eliminate.
	(sigpacket): Move to sigproc.h.  Subsume sigelem.
	(pending_signals): Use sigpacket rather than sigelem for everything.
	(sig_clear): Ditto.
	(wait_sig): Ditto.
	(sig_send): Rewrite to use siginfo_t argument.
	(sig_send): New function wratpper to sig_send with siginfo_t argument.
	(wait_subproc): Accommodate siginfo_t considerations.
	* thread.cc (pthread_kill): Ditto.
	* sigproc.h (sigpacket): Move here.
	(sigpacket::process): Declare "new" function.
	(sig_handle): Eliminate declaration.
	(sig_send): Declare with new paramaters.
	(killsys): Declare new function.
	(kill_pgrp): Declare.
	* winsup.h: Move some signal-specific stuff to sigproc.h.
	* include/cygwin/signal.h: Tweak some siginfo_t stuff.

2004-01-16  Christopher Faylor  <cgf@redhat.com>

	* fhandler_console.cc (fhandler_console::close): Remove obsolete test
	for vfork_cleanup.
	* pipe.cc (fhandler_pipe::close): Add comment.

2004-01-16  Christopher Faylor  <cgf@redhat.com>

	* cygheap.cc (init_cygheap::close_ctty): Don't NULL ctty if it is still
	active.

2004-01-16  Christopher Faylor  <cgf@redhat.com>

	* dtable.cc (dtable::vfork_parent_restore): Store ctty_on_hold prior to
	calling close_all_files since it will be zeroed.

2004-01-15  Christopher Faylor  <cgf@redhat.com>

	* gentls_offsets: Reinstate unlink of temp files.

2004-01-14  Christopher Faylor  <cgf@redhat.com>

	* fhandler_console.cc (fhandler_console::close): Fix debugging output.
	(fhandler_console::fixup_after_fork): Decrement open_fhs prior to call
	to fhandler_console::open since this would cause incrementing too much
	incrementing in child processes.  (Probably needs to be handled more
	elegantly someday)
	(fhandler_console::fixup_after_exec): Ditto.

2004-01-14  Christopher Faylor  <cgf@redhat.com>

	* cygtls.h (_threadinfo::call): Remove regparm declaration to work
	around compiler bug.

2004-01-13  Christopher Faylor  <cgf@redhat.com>

	* autoload.cc (TryEnterCriticalSection): Remove.
	* dcrt0.cc (dll_crt0_0): Delete inappropriate setting of
	_my_tls.stackptr to NULL since it has really bad consequences.  Make
	'si' an automatic variable.

2004-01-13  Christopher Faylor  <cgf@redhat.com>

	* cygtls.cc (_threadinfo::init_thread): Correct thinko which caused
	thread list to be allocated every time.
	* cygtls.h (CYGTLS_PADSIZE): Define as const int.
	* sync.h: Make multiple inclusion safe.
	(muto::next): Eliminate.
	(muto::exiting_thread): New variable.
	(muto::set_exiting_thread): New function.
	(new_muto): Change to use different section for mutos since c++ give
	inexplicable warning in some cases otherwise.
	(new_muto1): Ditto.
	* dcrt0.cc (do_exit): Call muto::set_exiting_thread here.
	* sync.cc (muto_start): Eliminate.
	(muto::acquire): Always give exiting thread a lock.  Never give thread
	a lock if exiting.
	(muto::release): Ditto for releasing.
	* dtable.cc (dtable::init_lock): Unline function and define here.
	* dtable.h (lock_cs): Define as a muto since critical sections seem to
	work oddly on Windows Me.
	(lock): Accommodate switch to muto.
	(unlock): Ditto.
	* exceptions.cc (setup_handler): Don't worry about acquiring mutos
	since that hasn't mattered for a long time.
	(signal_exit): Ditto: muto stuff will be handled automatically on exit
	now.

2004-01-12  Christopher Faylor  <cgf@redhat.com>

	* Makefile.in (DLL_IMPORTS): Link advapi32 to ensure proper DLL
	initialization.
	* autoload.cc (RegCloseKey): Arbitrarily choose this function as a
	"seed" to pull the advapi32 link library in.  So, comment out the
	autoloading.
	* cygtls.cc (_threadinfo::init_thread): Just clear CYGTLS_PADSIZE.
	(_threadinfo::remove): Add debugging.
	(_threadinfo::find_tls): Ditto.
	* cygtls.h (_threadinfo::padding): Make zero length (for now?).
	* dcrt0.cc (dll_crt0_0): Move more initialization here from dll_crt0_1.
	(dll_crt0_1): See above.
	* dtable.h (dtable::lock): Remove commented out critical section
	locking.
	* dtable.h (dtable::init_lock): Remove commented out critical section
	locking.
	* dtable.h (dtable::unlock): Remove commented out critical section
	locking.
	* exceptions.cc (interruptible): bool'ize.
	* init.cc (threadfunc_fe): Revert to storing threadfunc at stack
	bottom.
	(munge_threadfunc): Ditto.  Avoid adding overhead to
	calibration_thread.
	(prime_threads): Don't initialize tls stuff.
	(dll_entry): Make minor change to initialization order.
	* tlsoffsets.h: Regenerate.

	* sigproc.cc (wait_sig): Add sanity check for end of process thread
	exit.

	* select.h: Make minor formatting change.

2004-01-10  Christopher Faylor  <cgf@redhat.com>

	* Makefile.in: Add still more -fomit-frame-pointer functions.
	* dtable.h (dtable::lock): New function.
	(dtable::unlock): New function.
	(dtable::init_lock): New function.
	* cygheap.h (HEAP_TLS): Declare new enum value.
	(init_cygheap::threadlist): Declare new array.
	(init_cygheap::sthreads): Declare new variable.
	(cygheap_fdmanip::~cygheap_fdmanip): Use new dtable lock/unlock
	functions.
	(cygheap_fdnew::cygheap_fdnew): Ditto.
	(cygheap_fdget::cygheap_fdget): Ditto.
	* dtable.cc (dtable_init): Initialize fdtab critical section.
	(dtable::fixup_after_fork): Ditto.
	(dtable::fixup_after_exec): Ditto.
	(dtable::dup2): Use lock/unlock calls to protect access to fdtab.
	(dtable::find_fifo): Ditto.
	(dtable::fixup_before_fork): Ditto.
	(dtable::fixup_before_exec): Ditto.
	(dtable::set_file_pointers_for_exec): Ditto.
	(dtable::vfork_child_dup): Ditto.
	(dtable::vfork_parent_restore): Ditto.
	* syscalls.cc (close_all_files): Ditto.
	* sync.h (muto::acquired): Declare new function.
	(new_muto1): Declare new macro used to specify name of muto storage.
	* sync.cc (muto::acquired): Define new function.

	* cygthread.cc (cygthread::stub): Remove signal chain removal call
	since it is handled during initialization now.
	* cygthread.cc (cygthread::simplestub): Remove signal chain removal
	call since it is handled during initialization now.
	* cygtls.cc (sentry): New class used for locking.  Use throughout.
	(_threadinfo::reset_exception): Don't pop stack.
	(_threadinfo::find_tls): Move from exceptions.cc.
	(_threadinfo::init_thread): Initialize array of threads rather than
	linked list.  Take second argument indicating thread function for this
	thread.
	(_threadinfo::remove): Search thread array rather than linked list.
	Use sentry to lock.  Only unlock if we got the lock.
	(_threadinfo::find_tls): Ditto for first two.
	(handle_threadlist_exception): Handle exceptions when manipulating the
	thread list in case of premature thread termination.
	(_threadinfo::init_threadlist_exceptions): Ditto.
	* cygtls.h (TLS_STACK_SIZE): Decrease size.
	(_threadinfo::padding): Add element to avoid overwriting lower part of
	stack.
	(_threadinfo::remove): Add a "wait" argument to control how long we
	wait for a lock before removing.
	* exceptions.cc (init_exception_handler): Make global.  Take argument
	to control exception handler being set.
	(ctrl_c_handler): Wait forever when removing self from signal chain.
	(_threadinfo::find_tls): Move to cygtls.cc.
	(sig_handle): Reorganize detection for thread-specific signals.
	* heap.cc (heap_init): Rework slightly.  Make fatal error more verbose.
	Remove malloc initialization since it can't happen during dll attach.
	* init.cc (search_for): Move address to search for on stack here.
	(threadfunc_ix): Ditto for stack offset.  Make shared so that stack
	walk potentially only has to be done once when cygwin processes are
	running.
	(threadfunc_fe): Use standard tls to store thread function (may change
	back later).
	(calibration_thread): New function.  Potentially called to find
	threadfunc_ix.
	(munge_threadfunc): Search for "search_for" value on stack.  Output
	warning when thread func not found on stack.  Use standard tls to store
	thread function.
	(prime_threads): New function.  Called to prime thread front end.
	(dll_entry): Call dll_crt0_0 here when DLL_PROCESS_ATTACH.  Call
	prime_threads here.  Try to remove thread from signal list here.
	* sigproc.cc (wait_sig): Initialize threadlist exception stuff here.
	* thread.cc (pthread::exit): Pass argument to signal list remove
	function.
	* thread.h: Remove obsolete *ResourceLock defines.

	* tlsoffsets.h: Regenerate.

	* winsup.h (spf): Define temporary debug macro to be deleted later.

	* dcrt0.cc (dll_crt0_0): New function, called during DLL
	initialization.  Mainly consists of code pulled from dll_crt0_1.
	(dll_crt0_1): See above.
	(_dll_crt0): Wait for initial calibration thread to complete, if
	appropriate.  Move some stuff to dll_crt0_0.
	(initialize_main_tls): Accommodate argument change to
	_thread_info::init_thread.
	* fork.cc (fork_child): Ditto.
	(sync_with_child): Fix debug message.
	* external.cc (cygwin_internal): Remove special considerations for
	uninitialized dll since initialization happens during dll attach now.

	* dlfcn.cc (dlopen): Remove obsolete *ResourceLock calls.
	(dlclose): Ditto.

2004-01-05  Christopher Faylor  <cgf@redhat.com>

	* cygheap.h (init_cygheap::close_ctty): Declare new function.
	* cygheap.cc (init_cygheap::close_ctty): Define new function.
	* syscalls.cc (close_all_files): Use close_ctty.
	(setsid): Ditto.

	* cygthread.cc (cygthread::stub): Remove exception initialization.
	* cygthread.cc (cygthread::stub): Remove exception initialization.
	(cygthread::simplestub): Ditto.
	* thread.cc (pthread::thread_init_wrapper): Ditto.
	* cygtls.cc (_last_thread): Make static.
	(_threadinfo::call2): Initialize exception handler here.
	(_threadinfo::find_tls): Move here.
	* exceptions.cc (_threadinfo::find_tls): Move.

	* dcrt0.cc (__api_fatal): Add prefix info to message here rather than
	including it in every call to function.
	* winsup.h (api_fatal): Accommodate above change.
	* debug.cc (add_handle): Don't do anything if cygheap not around.
	(mark_closed): Ditto.

	* dll_init.cc (dll_list::detach): Fix debug output.
	* fork.cc (sync_with_child): Ditto.
	(vfork): Improve debug output.
	* heap.cc (heap_init): Ditto.

	* exceptions.cc (try_to_debug): Clarify message when debugger attaches.

2004-01-03  Christopher Faylor  <cgf@redhat.com>

	* exceptions.cc (_threadinfo::interrupt_now): Avoid double call to
	sigdelayed.
	* pinfo.cc (_pinfo::commune_send): Avoid inexplicable test which caused
	most pids to be shown as "<defunct>" on Win9x.

2004-01-02  Christopher Faylor  <cgf@redhat.com>

	* cygheap.h (init_cygheap): Play more vfork shell games and move
	ctty_on_hold and open_fhs_on_hold (back) here.
	* dcrt0.cc (_dll_crt0): Just set impure_ptr_ptr here and let later
	initialization deal with tls.
	* dtable.cc (dtable::vfork_child_fixup): Move ctty considerations here.
	(dtable:vfork_parent_restore): And here.
	* fork.cc (vfork): Reflect change to ctty handling.
	* perthread.h (vfork_save::fhctty): Eliminate.

	* cygwin.din: Make more exports NOSIGFE that will never be interrupted
	by a signal.

	* init.cc (dll_entry): Set stackptr to NULL to catch problems earlier.