changelog-2001

cygwin, 著名的在win32下模拟unix操作系统的东东

	* fhandler_disk_file.cc (fhandler_disk_file::fhandler_disk_file):
	Define new method which passes devtype through.
	(fhandler_disk_file::open): Tweak debug output.
	(fhandler_disk_file::opendir): Nuke first argument.  Use info from
	path_conv and class rather than calling fstat.
	(fhandler_cygdrive::set_drives): New method.
	(fhandler_cygdrive::iscygdrive_root): New method.
	(fhandler_cygdrive::opendir): New method.
	(fhandler_cygdrive::readdir): New method.
	(fhandler_cygdrive::telldir): New method.
	(fhandler_cygdrive::seekdir): New method.
	(fhandler_cygdrive::rewinddir): New method.
	(fhandler_cygdrive::closedir): New method.
	(fhandler_cygdrive::fstat): New method.
	* path.cc (iscygdrive_device): Assume cygdriveness is already verified.
	(path_conv::check): Treat FH_CYGDRIVE "method" as a special case,
	setting file attributes as needed.
	(mount_info::conv_to_win32_path): Allow stand-alone /cygdrive, meaning
	"the directory which contains all of the drives on the system".
	(fillout_mntent): Use cyg_tolower for conversions.
	(mount_info::cygdrive_win32_path): Replace unused argument with unit
	number.
	* shared_info.h (mount_info::cygdrive_win32_path): Reflect argument
	change.

2001-11-21  Christopher Faylor  <[e-mail]>

	* Makefile.in (DLL_OFILES): Add fhandler_disk_file.o.
	* cygheap.h (cygheap_fdnew::operator =): New operator.
	* dir.cc: Add invalid struct checking throughout.  Use methods for all
	directory manipulation throughout.
	* fhandler.cc: Move fhandler_disk_file stuff to own file.
	(fhandler_base::opendir): New method.
	(fhandler_base::readdir): New method.
	(fhandler_base::telldir): New method.
	(fhandler_base::seekdir): New method.
	(fhandler_base::rewinddir): New method.
	(fhandler_base::closedir): New method.
	* fhandler_disk_file.cc: New file.
	* fhandler.h (fhandler_base): Declare new virtual methods.
	(fhandler_disk_file): Ditto.
	(fhandler_cygdrive): New class.

	* path.cc (conv_path_list): Use strccpy to break apart path.

2001-11-17  Nick Duffek  <[e-mail]>

	* path.cc (conv_path_list): Copy source paths before modifying them.

2001-11-17  Corinna Vinschen  <[e-mail]>

	* fhandler_raw.cc (fhandler_dev_raw::clear): Don't reset unit.
	* fhandler_tape.cc (fhandler_dev_tape::fhandler_dev_tape): Add debug
	output.

2001-11-15  Egor Duda  <[e-mail]>

	* include/pthread.h (PTHREAD_COND_INITIALIZER): Define.
	* thread.cc (__pthread_cond_destroy): Add support for
	PTHREAD_COND_INITIALIZER.
	(__pthread_cond_init): Ditto.
	(__pthread_cond_broadcast): Ditto.
	(__pthread_cond_signal): Ditto.
	(__pthread_cond_dowait): Ditto.
	(__pthread_mutex_init): Handle PTHREAD_MUTEX_INITIALIZER correctly,
	don't return error when it's passed as parameter.
	* winsup.h (check_null_invalid_struct): Call correct function.

2001-11-14  Christopher Faylor  <[e-mail]>

	* exceptions.cc: Add stdlib.h include for alloca declaration.
	* poll.cc: Ditto.
	* termios.cc: Ditto.

2001-11-14  Christopher Faylor  <[e-mail]>

	* syscalls.cc (_write): Only allow zero length when fd is valid.

2001-11-14  Corinna Vinschen  <[e-mail]>

	* fhandler.cc (fhandler_disk_file::fstat): Add setting access time
	and creation time to last modification time for files on filesystems
	not supporting multiple timestamps.
	(fhandler_disk_file::fstat_helper): Set access time and creation
	time in incoming Windows structure instead of in stat buf to avoid
	incorrectly overwriting Epoch timestamp.

2001-11-14  Corinna Vinschen  <[e-mail]>

	* winsup.h: Remove alloca definition since it's now defined through
	inclusion of stdlib.h.
	* lib/cygwin_crt0.c: Ditto.

2001-11-13  Christopher Faylor  <[e-mail]>

	* syscalls.cc (_write): Allow zero length as per SUSv2.

2001-11-13  Corinna Vinschen  <[e-mail]>

	* dir.cc (mkdir): Add HIDDEN file attribute if file has leading dot
	and HIDDEN_DOT_FILES is defined.
	* fhandler.cc (fhandler_base::open): Ditto.
	* path.cc (symlink): Ditto.
	* syscalls.cc (_rename): Ditto and remove HIDDEN file attribute if
	new filename does not begin with a dot.

2001-11-12  Christopher Faylor  <[e-mail]>

	* fhandler_console.cc (fhandler_console::read): Revert 2001-10-23
	change to only honor keydown events.

2001-11-11  Christopher Faylor  <[e-mail]>

	* include/cygwin/version.h: Bump version to 1.3.6.

2001-11-10  Christopher Faylor  <[e-mail]>

	* dtable.cc (dtable::build_fhandler): Don't increment console fd count
	if new operation fails.  Increment fork_fixup field here.
	(dtable::dup2): Don't increment fork_fixup field here.
	* net.cc (fdsock): Ditto.

2001-11-08  Corinna Vinschen  <[e-mail]>

	* select.cc: Set errno using set_sig_errno() throughout.
	* signal.cc (signal): Always set SA_RESTART flag.
	* syscalls.cc (_read): Revert previous patch.

2001-11-08  Corinna Vinschen  <[e-mail]>

	* select.cc (fhandler_tty_slave::ready_for_read):  Return 0 on EBADF.
	* syscalls.cc (_read): If ready_for_read() failed, save errno from
	being overwritten by signal handler call.

2001-11-07  Corinna Vinschen  <[e-mail]>

	* lib/getopt.c (getopt_internal): Reset optind to 1 only if optreset
	is not set.

2001-11-06  Christopher Faylor  <[e-mail]>

	* select.cc (fhandler_tty_slave::ready_for_read): Correct inverted
	not_open test.

2001-11-05  Christopher Faylor  <[e-mail]>

	* include/cygwin/version.h: Bump version to 1.3.5.

2001-11-05  Corinna Vinschen  <[e-mail]>

	* mmap.cc (mmap_record::find_empty): Add input parameter check.

2001-11-04  Christopher Faylor  <[e-mail]>

	* dtable.cc (dtable::build_fhandler): Fix debug_printf to avoid SEGV
	due to incorrect parameter placement.

2001-11-04  Christopher Faylor  <[e-mail]>

	* fhandler.h (fhandler_pipe::broken_pipe): Renamed from saweof.
	(fhandler_pipe::set_eof): Reflect above change.
	* pipe.cc (fhandler_pipe::fhandler_pipe): Ditto.
	(fhandler_pipe::read): Ditto.
	(fhandler_pipe::hiteof): Ditto.

2001-11-04  Christopher Faylor  <[e-mail]>

	* pipe.cc (fhandler_pipe::read): Narrow eof return to just the "broken
	pipe" test.

2001-11-04  Christopher Faylor  <[e-mail]>

	* select.cc: Add more comments throughout.  Use bool 'true' where
	appropriate throughout.
	(fhandler_socket::select_read): Remove duplicate setting for *_ready
	which inadvertently overrode previous, correct setting.
	(fhandler_socket::select_write): Ditto.

2001-11-03  Christopher Faylor  <[e-mail]>

	* select.cc (verify_console): New function.
	(verify_windows): Ditto.
	(fhandler_console::select_read): Really do need to verify that there is
	something to read.
	(fhandler_console::select_windows): Ditto.

2001-11-03  Christopher Faylor  <[e-mail]>

	* fhandler.h (fhandler_base::ready_for_read): Remove unused argument.
	(fhandler_tty_slave::ready_for_read): Ditto.
	(select_record): Remove poll, initialize peek.
	* select.cc: Remove all poll functions, throughout.  Change second
	argument of peek_* functions to 'bool' throughout.  Specifically
	initialize *_ready variables throughout.
	(select_stuff::poll): Subsume previous poll functionality.
	(peek_pipe): Don't grab guard mutex when in select loop.
	select()/read() is racy by design so there is no need to worry about a
	race in select().
	(fhandler_base::ready_for_read): Remove unused argument.
	(fhandler_tty_slave::ready_for_read): Ditto.
	* syscalls.cc (_read): Eliminate third argument in ready_for_read call.

2001-11-03  Corinna Vinschen  <[e-mail]>

	* security.cc (get_supplementary_group_sidlist): New function.
	(get_group_sidlist): Call get_supplementary_group_sidlist() to
	retrieve list of supplementary groups SIDs from /etc/group and
	add them to the user's group list.

2001-11-03  Christopher Faylor  <[e-mail]>

	* fhandler.cc (fhandler_base::read): Return just read ahead characters
	if slow device.
	* fhandler.h (fhandler_base::set_eof): New virtual method.
	(fhandler_pipe::set_eof): New method.
	* pipe.cc (fhandler_pipe::fhandler_pipe): Clear saweof flag.
	(fhandler_pipe::read): Return immediately if hit eof.
	(fhandler_pipe::hit_eof): Return true if saweof flag is set.
	* select.cc (peek_pipe): Don't call PeekNamedPipe if we couldn't grab
	the guard mutex.

2001-11-02  Egor Duda  <[e-mail]>

	* dll_init.h (class dll_list): Reorder functions to avoid compiler
	"can't inline" warnings.
	* security.h (class cygsid): Ditto.
	* sigproc.cc (get_proc_lock): Ditto.
	* sigproc.h (class sigframe): Ditto.
	* sync.h (class muto): Ditto.

2001-11-02  Christopher Faylor  <[e-mail]>

	* fhandler.h (fhandler_base::get_guard): Actually MAKE virtual as
	previously indicated.
	* pipe.cc (make_pipe): Remove extraneous set_errno.
	* syscalls.cc (_open): Ditto.
	* select.cc (peek_pipe): Need to check that there is still something to
	read from the pipe after acquiring the mutex since another
	process/thread could have eaten the input before we got to acquiring
	the lock.  (Thanks to Nick Duffek for this inspiration.)

2001-11-01  Christopher Faylor  <[e-mail]>

	* fhandler.h: Change Windows 'BOOL's to c++ 'bool's for all variables.
	* select.cc (fhandler_base::ready_for_read): Set read_ready to zero
	prior to testing it or it will be uninitialized.

	* Makefile.in (CFLAGS): Move setting to Makefile.common.

2001-11-01  Christopher Faylor  <[e-mail]>

	* cygheap.h (cygheap_fdmanip::isopen): Set appropriate errno if fd not
	open.
	* select.cc (fhandler_base::ready_for_read): Release an open guard
	mutex when exiting with an error condition.
	* syscalls.cc (_read): Check frequently for closed fd as a kludge until
	something better is invented.

2001-11-01  Christopher Faylor  <[e-mail]>

	* dtable.cc (dtable::build_fhandler): Issue internal error on unknown
	device.
	* fhandler.cc (fhandler_base::close): Show both name and handle in
	debugging output.

	* fhandler.h (fhandler_base::get_guard): New virtual method.
	(fhandler_pipe::get_guard): New method.
	(fhandler_socket::ready_for_read): Delete declaration.
	(fhandler_pipe::ready_for_read): Ditto.
	(fhandler_serial::ready_for_read): Ditto.
	(fhandler_console::ready_for_read): Ditto.
	(fhandler_tty_common::ready_for_read): Ditto.
	(fhandler_windows::ready_for_read): Ditto.
	(struct select_record::peek): Declare new method.
	* select.cc (MAKEready): Delete.
	(peek_pipe): Use get_guard method to retrieve potential guard mutex
	handle.
	(fhandler_base::ready_for_read): Rewrite as generic ready-for-read
	handler.  Should only be called for "slow" devices.
	(fhandler_socket::ready_for_read): Delete definition.
	(fhandler_pipe::ready_for_read): Ditto.
	(fhandler_serial::ready_for_read): Ditto.
	(fhandler_console::ready_for_read): Ditto.
	(fhandler_tty_common::ready_for_read): Ditto.
	(fhandler_windows::ready_for_read): Ditto.
	(fhandler_pipe::select_read): Fill in new peek record in select_record
	structure.
	(fhandler_console::select_read): Ditto.
	(fhandler_tty_common::select_read): Ditto.
	(fhandler_serial::select_read): Ditto.
	(fhandler_socket::select_read): Ditto.
	(fhandler_socket::select_read): Ditto.
	(fhandler_tty_slave::ready_for_read): Check for tty not open.  Set
	errnos appropriately.
	* syscalls.cc (_read): Allow ready_for_read to set errno.

	* pinfo.cc (pinfo::init): Return spawn/NO_WAIT process as valid if it
	is initializing.
	* sigproc.cc (getsem): Adjust wait for process to initialize downward
	to avoid huge waits.

2001-10-31  Christopher Faylor  <[e-mail]>

	* environ.cc: Set reset_com to false to mimic linux behavior more
	closely.

2001-10-31  Corinna Vinschen  <[e-mail]>

	* dtable.cc (dtable::vfork_child_dup): Revert impersonation
	before duplicating fhandler.

2001-10-30  Christopher Faylor  <[e-mail]>

	* exceptions.cc (signal_exit): Weight the odds against the main thread
	running when signal thread is exiting.

2001-10-30  Christopher Faylor  <[e-mail]>

	* sigproc.cc (sigproc_terminate): Don't signal main thread when exiting.
	* sigproc.h (sigframe): Decorate some methods with `inline'.
	(new_muto): Coerce pointer to new to void *.

2001-10-30  Christopher Faylor  <[e-mail]>

	* fhandler.cc (fhandler_base::fork_fixup): Pass old handle to
	setclexec_pid.

2001-10-30  Christopher Faylor  <[e-mail]>

	* cygheap.h (cygheap_fdmanip::cygheap_fdmanip): Clear fh.
	(cygheap_fdmanip::isopen): New method.
	* syscalls.cc (_read): Avoid accessing closed fd.

	* path.h (fe_types): New enum.
	(path_conv::set_path): New method.
	(find_exec): Change null_if_not_found argument to something more
	generic.
	* spawn.cc (find_exec): Default to returning the POSIX path rather than
	the windows path, unless instructed otherwise.
	(spawn_guts): Force call to find_exec to use native paths.
	* dlfcn.cc (check_path_access): Accommodate new find_exec arguments.
	* environ.h (win_env::get_posix): New method.

2001-10-30  Corinna Vinschen  <[e-mail]>

	* fhandler_socket.cc (fhandler_socket::close): Add error handling.