changelog-2000

cygwin, 著名的在win32下模拟unix操作系统的东东

Thu Oct 26 11:51:59 2000  Corinna Vinschen <[e-mail]>

	* dtable.cc (dtable::release): Check for socket. Change
	cnt_need_fixup_before accordingly.
	(dtable::dup2): Ditto.
	(dtable::fixup_before_fork): New method.
	(dtable::fixup_before_exec): Ditto.
	* dtable.h (class dtable): Add member `cnt_need_fixup_before'. Add
	definition for methods `dec_need_fixup_before', `inc_need_fixup_before',
	`need_fixup_before', `fixup_before_exec' and `fixup_before_fork'.
	* fhandler.h (class fhandler_base): Slight rearrangements. Add
	definitions for methods `fixup_before_fork_exec'.
	(class fhandler_socket): Eliminate superfluous constructor.
	Add member `prot_info_ptr'. Add destructor. Add definitions for
	methods `dup', `fixup_before_fork_exec', `fixup_after_fork' and
	`fixup_after_exec'.
	* fork.cc (fork_parent): Care for file types which need a fixup
	before fork. Start child in suspended state then.
	* net.cc: New global variable `ws2_32_handle' and `wsadata'.
	(fdsock): Check for Winsock version. Call `set_socket_inheritance'
	only if Winsock version < 2.0. Care for `need_fixup' count in fdtab.
	(cygwin_socket): Eliminate call to `set_socket_inheritance'.
	(cygwin_accept): Ditto.
	(cygwin_rcmd): Ditto.
	(cygwin_rresvport): Ditto.
	(cygwin_rexec): Ditto.
	(socketpair): Ditto.
	(fhandler_socket::fhandler_socket): Set `need_fork_fixup'. Allocate
	space for the WSAPROTOCOL_INFOA struct used in fixup.
	(fhandler_socket::~fhandler_socket): New destructor.
	(fhandler_socket::fixup_before_fork_exec): New method.
	(fhandler_socket::fixup_after_fork): Ditto.
	(fhandler_socket::dup): Ditto.
	(wsock_init): New static function.
	(LoadDLLinitfunc (wsock32)): Rearranged.
	(LoadDLLinitfunc (ws2_32)): New function.
	(dummy_autoload): Add autoload statemants for `WSADuplicateSocketA'
	and `WSASocketA'.
	* spawn.cc (spawn_guts): Care for file types which need a fixup
	before exec. Start child in suspended state then.

Wed Oct 25 20:49:59 2000  Christopher Faylor <[e-mail]>

	* signal.cc (kill_pgrp): Don't limit sending of signals to stopped
	processes when sig < 0.
	(kill_worker): Only send SIGCONT to stopped processes when sendSIGCONT.

Wed Oct 25 13:56:39 2000  Christopher Faylor <[e-mail]>

	* exceptions.cc (sig_handle): Just make sure that wait_sig loops when
	receiving a SIGCONT.  Don't block waiting for completion that will
	never occur.

Wed Oct 25 09:59:14 2000  Christopher Faylor <[e-mail]>

	* dtable.cc (dtable::fixup_after_exec): Use variable rather than
	constantly indexing into fds array.
	(dtable::fixup_after_fork): Ditto.

Wed Oct 25 10:43:00 2000  Corinna Vinschen <[e-mail]>

	* fhandler.cc (fhandler_base::fcntl): Treat O_NONBLOCK and OLD_O_NDELAY
	as exactly the same. If one is set, both are set.
	* net.cc (fhandler_socket::fcntl): Ditto.

Tue Oct 24 23:58:35 2000  Christopher Faylor <[e-mail]>

	* dcrt0.cc (do_exit): Remove debugging statement.

Tue Oct 24 23:45:09 2000  Christopher Faylor <[e-mail]>

	* dcrt0.cc (do_exit): Don't bother looking for pgrp children to send
	SIGHUP if process has never created any children.
	* fork.cc (fork): Set flag indicating that there is another process
	with our process group.
	* spawn.cc (spawn_guts): Ditto.
	* pinfo.h (set_has_pgid_children): New methods for setting when process
	has children in its process group.
	* syscalls.cc (setpgid): Clear has_gid_children if pgid changes.

Tue Oct 24 20:38:00 2000  Corinna Vinschen <[e-mail]>

	* ntdll.h: New file.
	* fhandler_mem.cc: Move ntdll.dll specific definitions and
	declarations to ntdll.h.
	* sysconf.cc (sysconf): Add support for _SC_NPROCESSORS_CONF,
	_SC_NPROCESSORS_ONLN, _SC_PHYS_PAGES and _SC_AVPHYS_PAGES.

Tue Oct 24 20:00:00 2000  Corinna Vinschen <[e-mail]>

	* fhandler.cc (fhandler_base::fcntl): Behave properly when passed
	previous version of O_NDELAY.
	* syscalls.cc: Move OLD_O_NDELAY to winsup.h.
	* winsup.h: Define OLD_O_NDELAY now.

Mon Oct 23 21:47:55 2000  Christopher Faylor <[e-mail]>

	* exceptions.cc (signal_exit): Kill any executing child process if
	we're dying.
	* path.h: Remove unneeded extern.
	* spawn.cc (std_suffixes): Make static.  Don't set dwProcessId here
	since it makes the process unsignalable.  Set strace flag that this is
	an execed process stub.
	* strace.cc (strace::vsprntf): Use strace flag to indicate when to
	visually flag that this is an exec stub.
	* include/sys/strace.h (strace): Add 'execing' flag.

Mon Oct 23 16:43:33 2000  Christopher Faylor <[e-mail]>

	* sigproc.cc (proc_subproc): Don't send a false positive if WNOHANG and
	no processes are available for waiting.

Mon Oct 23 22:27:00 2000  Corinna Vinschen <[e-mail]>

	* fhandler.cc (fhandler_base::fcntl): Setting flags in F_SETFL
	branch according to Linux documentation.

Mon Oct 23 21:43:00 2000  Corinna Vinschen <[e-mail]>

	* fcntl.cc (_fcntl): Rearrange as wrapper function. Move all
	functionality except F_DUPFD to fhandler classes.
	* fhandler.cc (fhandler_base::fcntl): New method.
	* net.cc (fhandler_socket::fcntl): Ditto.
	* fhandler.h (class fhandler_base): Add method prototype for fcntl().
	(class fhandler_socket): Ditto.

Mon Oct 23 12:44:35 2000  Christopher Faylor <[e-mail]>

	* sigproc.cc (proc_subproc): Correctly handle flags for WNOHANG case.

Mon Oct 23 10:00:00 2000  Corinna Vinschen <[e-mail]>

	* security.cc: Eliminate C++ comments throughout.

Sun Oct 22 23:33:00 2000  Christopher Faylor <[e-mail]>

	* fork.cc (fork): Set sigframe here, since it can pause for a
	considerable amount of time.
	* environ.cc (_addenv): Add debugging.
	* fhandler.cc: Eliminate unneeded include.
	* smallprint.c: Ditto.

Sun Oct 22 12:07:00 2000  Corinna Vinschen <[e-mail]>

	* pinfo.cc (pinfo_init): Eliminate call to `set_process_privileges'.
	* security.cc (write_sd): Call `set_process_privileges' on the first
	call to `write_sd'.
	(set_process_privileges): Eliminate adjusting SE_BACKUP_NAME privilege.

Sat Oct 21 16:57:23 2000  Christopher Faylor <[e-mail]>

	* pinfo.cc (pinfo::init): Make PID_EXECED signal creation as well as
	PID_IN_USE.

Sat Oct 21 01:52:54 2000  Christopher Faylor <[e-mail]>

	* spawn.cc (spawn_guts): Don't do the reparenting step if we notice
	that the child has exited prior to sending the subprocess_ready signal
	(?).

Sat Oct 21 00:46:36 2000  Christopher Faylor <[e-mail]>

	* fhandler.h (fhandler_console): Remove tcsetpgrp.
	* fhandler_console.cc (fhandler_console::tcsetpgrp): Eliminate.
	* fork.cc (fork_parent): Avoid returning same pid twice in a row
	regardless of OS.
	* pinfo.cc (pinfo::init): Rename create argument to flags and treat it
	as such.
	* signal.cc (set_sigcatchers): New function.
	(signal): Use set_sigcatchers to increment or decrement sigcatcher
	tracker.
	(sigaction): Ditto.  Add debugging output.
	* spawn.cc (spawn_guts): Always quote first argv[0] argument when it's
	a COMSPEC shell.

2000-10-20  DJ Delorie  <[e-mail]>

	* times.cc (to_time_t): pass zero time as epoch
	* fhandler.cc (fstat): copy atime/ctime from mtime if they're zero

Thu Oct 19 23:31:41 2000  Christopher Faylor <[e-mail]>

	* external.cc (fillout_pinfo): Pass PID_NOREDIR flag to pinfo init to
	avoid finding execed processes twice.
	* signal.cc (kill_pgrp): Ditto.
	* spawn.cc (spawn_guts): Avoid passing first argument to CreateProcess
	when running a windows shell so that CreateProcess will locate the
	shell.  Reorganize so that correct error is returned when CreateProcess
	fails.

Thu Oct 19 13:55:31 2000  Christopher Faylor <[e-mail]>

	* dcrt0.cc (sigthread::init): Correct overzealous ifdef.
	* exceptions.cc (call_handler): Avoid calling sigthread acquire lock.
	* sigproc.h (sigthread): Comment out lock for now.
	* sync.cc (muto::acquire): Add a minor optimization.

2000-10-18  DJ Delorie  <[e-mail]>

	* Makefile.in: add miscfuncs.cc
	* miscfuncs.cc: new, miscellaneous functions
	* winsup.h: define table-driven tolower/toupper
	* environ.cc: use them
	* fhandler_console.cc: ditto
	* fhandler_termios: ditto
	* path.cc: ditto
	(strncasematch, strcasematch, strcasestr): move to miscfuncs.cc

Wed Oct 18 20:50:27 2000  Christopher Faylor <[e-mail]>

	* sigproc.h (sigthread): Eliminate locking for now since per thread
	signalling is not available.
	* dcrt0.cc (sigthread::init): Ditto.
	(dll_crt0_1): Move set_process_privileges call (temporarily?) to
	pinfo_init.
	(pinfo_init): Only call set_process_privileges when allow_ntsec.

2000-10-18  DJ Delorie  <[e-mail]>

	* dcrt0.cc (dll_crt0_1): init cygcwd before forkee branch

	* environ.cc (conv_start_chars): Cache a table of "first
	characters" for environment variables needing conversion.
	(getwinenv): Use it.
	(environ_init): Create it, also check first chars for TERM and
	CYGWIN.

	* path.cc: Use lookup table for case insensitive comparisons.

Wed Oct 18 00:48:49 2000  Christopher Faylor <[e-mail]>

	* exceptions.cc (call_handler): Make signal pending if sigsave.sig is
	still active.
	* syscalls.cc (_read): Don't clear errno.
	* sigproc.cc (wait_sig): Don't scan the waiting process list after a
	SIGCHLD if there are no zombies to reap.
	* winsup.h: Use __builtin_strcmp.
	* environ.cc (posify): Don't initialize len unless it is required
	(from DJ Delorie <[e-mail]>).

Tue Oct 17 14:50:31 2000  Christopher Faylor <[e-mail]>

	* sigproc.cc (proc_subproc): Remove unneeded test for correct process
	in PROC_ADDCHILD.  Return 0 when terminated child has just been
	reparented.
	(wait_subproc): Only send SIGCHLD when proc_subproc returns != 0.
	* strace.cc (strace::vsprntf): Only strip .exe extension from program
	name.

2000-10-16  Charles Wilson  <[e-mail]>

	* fhandler_clipboard.cc: new file
	* Makefile.in: include fhandler_clipboard.o in DLL_OFILES list.
	* fhandler.h: add FH_CLIPBOARD to the devices enum.
	(fhandler_dev_clipboard): new
	* path.cc (windows_device_names): add "\\dev\\clipboard"
	(get_device_number): check for "clipboard"
	* dcrt0.cc: declare a few more functions from winuser.h
	* dtable.cc (dtable::build_fhandler): check for FH_CLIPBOARD in
	switch().

Mon Oct 16 21:36:57 2000  Christopher Faylor <[e-mail]>

	* debug.cc (add_handle): Issue warning on attempts to add the same
	handle more than once.
	* fhandler_tty.cc (fhandler_tty_slave::open): Protect some handles.
	(fhandler_tty_common::close): Use proper name when closing handles.
	(fhandler_pty_master::close): Don't close to_slave or from_slave since
	they've already been closed earlier in the function.
	* sigproc.cc (proc_subproc): Don't protect vchild->hProcess.  Expect
	that the caller will do this, instead.
	* tty.cc (tty_list::terminate): Use proper name when closing handles.
	(tty::make_pipes): Protect some handles.

Mon Oct 16 18:37:22 2000  Christopher Faylor <[e-mail]>

	* Makefile.in: Remove some obsolete stuff.
	* dcrt0.cc (dll_crt0_1): Call signal_fixup_after_exec where appropriate.
	Set myself->uid from parent version.
	Just use ThreadItem Init method.  Close or store hexec_proc as appropriate.
	(_dll_crt0): Store user_data->forkee here so that proper tests can be made
	subsequently.
	(do_exit): Remove hExeced stuff.
	* environ.cc (environ_init): Accept environ count as well as environ pointer.
	* environ.h: Reflect above change.
	* pinfo.cc (pinfo_init): Ditto.  Accept environ count.
	(fixup_in_spawned_child): Remove.
	* spawn.cc (spawn_guts): Move signal code to dll_crt0_1.  Don't suspend
	execing process since it is no longer necessary.  Store envc.
	* exceptions.cc (signal_fixup_after_exec): New function.
	(call_handler): Remove hExeced test.
	* child_info.h (cygheap_exec_info): Store envc as well as envp.
	(child_info_spawn): Store hexec_proc so that it can be closed in child.
	* path.cc (normalize_posix_path): Avoid intermediate use of temporary cwd buf.
	(normalize_win32_path): Ditto.
	(cwdstuff::get_initial): Always set lock.
	* sigproc.h: Remove hExeced.
	* strace.cc (strace::vsprntf): Modify to accommodate for lack of hExeced.
	* thread.cc (MTinterface::Init): Merge Init1 and ClearReent into this method.
	(MTinterface::Init1): Eliminate.
	(MTinterface::ClearReent): Eliminate.
	* thread.h: Reflect above changes.
	* include/sys/strace.h (strace): Make microseconds() public.

Sun Oct 15 21:54:52 2000  Christopher Faylor <[e-mail]>

	Make various functions 'regparm', throughout.
	* pinfo.h (_pinfo): Inline simple signal manipulation functions.
	Requires inclusion of thread.h which was removed from .cc files, where
	appropriate.  throughout.
	* pinfo.cc: Eliminate signal manipulation functions.
	(_pinfo::exit): Calculate total rusage for exiting process here.
	* cygheap.cc (size2bucket): Eliminate.
	(init_buckets): Ditto.
	(_cmalloc): Calculate size and bits in a loop rather than going through
	a function call.
	(_crealloc): Use stored array index to calculate allocated size.
	* spawn.cc (spawn_guts): Use _pinfo exit method to exit, calculating
	cpu usage.

Sat Oct 14 21:24:16 2000  Christopher Faylor <[e-mail]>

	* exceptions.cc (set_console_handler): Don't allocate
	console_handler_thread_waiter.  It is obsolete.
	(ctrl_c_handler): Don't use console_handler_thread_waiter.
	* path.cc (hash_path_name): Fix handling of relative names.  Make case
	insensitive.
	* path.h (suffix_info): Use initializers.
	* pinfo.h (_pinfo): Avoid initializers for null case.
	* resource.cc (fill_rusage): Zero rest of rusage structure.