changelog-2000

cygwin, 著名的在win32下模拟unix操作系统的东东

	* security.cc (set_process_privileges): Don't reopen parent process.
	Just use hMainProc.
	* signal.cc (signal): Track when a signal handler has been used.
	(sigaction): Ditto.
	* sigproc.cc (pchildren): Use default initializer.
	(zombies): Ditto.
	(sigproc_terminate): Avoid closing handles that will be closed on exit
	anyway.
	(wait_sig): Send signal to "parent" on EXECing, not FORKing.
	(wait_subproc): Send SIGCHLD here rather than in proc_wait to avoid
	potential muto conflicts.
	* sigproc.h (sigthread): Don't initialize to zero.  It's the default.
	* spawn.cc (spawn_guts): Fill in resources from exec parent prior to
	termination.
	* sync.h (muto): Don't initialize to zero.
	* syscalls.cc (close_all_files): Use one lock around entire loop and
	call fhandler close/release stuff directly.
	(_read): Don't use ready_for_read if there are not signal handlers
	active.

Sat Oct 14 12:24:24 2000  Christopher Faylor <[e-mail]>

	* dcrt0.cc (dll_crt0_1): Fix display of "title".
	(do_exit): Use pinfo exit method to exit.
	(__api_fatal): Ditto.
	* exceptions.cc (signal_exit): Ditto.
	* fork.cc (fork_child): Remove debugging stuff.  Use pinfo_fixup_after
	fork in place of exec_fixup_after_fork.
	* pinfo.cc (pinfo_fixup_after_fork): New method.
	(pinfo_fixup_in_spawned_child): Ditto.
	(_pinfo::exit): New method.
	(_pinfo::init): Remove recursion.  Detect pathological case where pinfo
	structure already exists for new pid.
	* pinfo.h (_pinfo): Reorganize slightly.  Add new method and new
	function declarations.
	* sigproc.cc (proc_exists): Previous simplification was a little to
	simple.  Try harder to detect if a process exists.
	(proc_terminate): Use PID_EXITED setting to determine if process is
	still around.
	(WFSO): Remove debugging statement.
	(WFMO): Ditto.
	* spawn.cc (exec_fixup_after_fork): Eliminate.
	(spawn_guts): Always set old_title to NULL.  Is it really needed?  Move
	hexec_proc to pinfo.cc.  Call pinfo_fixup_in_spawned_child to eliminate
	handle link after a spawn.
	* include/sys/cygwin.h: Remove PID_NOT_IN_USE.  Add PID_EXITED.

Sat Oct 14 10:54:00 2000  Corinna Vinschen <[e-mail]>

	* cygwin.din: Add symbol hstrerror.
	* net.cc: Change meaning of member `s' of struct host_errmap.
	(set_host_errno): Fix error in loop condition.
	(hstrerror): Ditto.
	(herror): Add appropriate functionality.
	* include/netdb.h: Add declaration of hstrerror.
	* include/cygwin/version.h: Bump CYGWIN_VERSION_API_MINOR to 29.

Sat Oct 14 01:45:25 2000  Christopher Faylor <[e-mail]>

	* cygheap.cc (cygheap_fixup_in_child): Don't page round cygheap copied
	from parent.
	* dcrt0.cc (do_exit): Don't cleanup pinfo on exit.  That happens
	automatically now.
	* exceptions.cc (signal_exit): Ditto.
	* fork.cc (fork_parent): Use stack_here value passed in from fork().
	(fork): Figure out top of stack here and pass it to fork_parent.
	* pinfo.cc (_pinfo::record_death): Eliminate.
	* pinfo.h (_pinfo): Ditto.
	* sigproc.cc (proc_exists): Simplify.
	(proc_terminate): Ditto.
	(remove_zombie): Don't cleanup pinfo stuff.
	(wait_sig): Send subproc_ready signal whether execed or spawned.
	* spawn.cc (spawn_guts): Always create subproc_ready event.  Use it for
	both exec and spawn.
	(_spawnve): Send proper mode to spawn_guts when mode != _P_OVERLAY.

Thu Oct 12 23:11:05 2000  Christopher Faylor <[e-mail]>

	* dtable.cc (dtable::fixup_after_fork): Revert thinko below.
	* pinfo.cc (set_myself): Show pid in initial strace line.

Thu Oct 12 17:58:03 2000  Christopher Faylor <[e-mail]>

	* child_info: Bump child_info "version".
	(child_info): Move some fields from child_info_spawn to here.
	* cygheap.cc: Make cygheap pointers NOCOPY.
	* dcrt0.cc (dll_crt0_1): Copy cygwin heap here regardless of whether
	we've been forked or execed.
	* dtable.cc (dtable::fixup_after_fork): Just release close-on-exec fds.
	* exceptions.cc (stackdump): Respond to C warning.
	* fork.cc: Reorganize to minimize stack copying.
	(fork_child): New function.
	(fork_parent): Ditto.
	(sync_with_child): Don't suspend the forkee.
	(sync_with_parent): Ditto.  Make into a function.
	* heap.cc (heap_init): Add some debugging output.
	* path.cc (path_conv::check): Add an assertion.
	(has_suffix): Ditto.
	* security.cc (get_pw_sid): Defend against NULL.
	* sigproc.cc (proc_subproc): Fix debugging output.
	(wait_sig): Ditto.
	* strace.cc: Make statics NO_COPY throughout.
	(strace::vsprntf): Defend against NULL.

Thu Oct 12 00:25:29 2000  Christopher Faylor <[e-mail]>

	* errno.cc (seterrno_from_win_error): Fix debugging output.
	* fhandler.cc (fhandler_base::fstat): Move to inline method in
	fhandler.h.
	(fhandler_base::set_io_handle): Ditto.
	* fhandler.h (fhandler_base): Make some methods inline.
	* fhandler_console.cc (fhandler_console::write_normal): Make buffer
	larger.
	* sigproc.h (sigframe::sigframe): Actually use set ebp parameter
	correctly.
	* spawn.cc (spawn_guts): Set dwProcessId when exec'ing.  Just exit
	immediately after reparenting.
	* syscalls.cc: Sprinkle sigframe stuff throughout.
	* wait.cc (wait4): Set signal frame here.

Tue Oct 10 19:54:06 2000  Christopher Faylor <[e-mail]>

	* dcrt0.cc (__api_fatal): Don't rely on small_printf to display errors.
	Always display problems to the console, if possible.

Tue Oct 10 15:21:10 2000  Christopher Faylor <[e-mail]>

	* path.cc (cwdstuff::get): Set EINVAL when length is zero.

Mon Oct  9 14:07:04 2000  Christopher Faylor <[e-mail]>

	* path.cc (mount_info::cygdrive_posix_path): Handle e:foo construction
	correctly.

Mon Oct  9 16:44:00 2000  Corinna Vinschen <[e-mail]>

	* fhandler_mem.cc (fhandler_dev_mem::fhandler_dev_mem):
	Fix debug output.

Mon Oct  9 15:58:00 2000  Corinna Vinschen <[e-mail]>

	* fhandler_mem.cc: Eliminate unused include statements.
	(fhandler_dev_mem::fhandler_dev_mem): Check for 9X/ME.

Mon Oct  9 15:11:00 2000  Corinna Vinschen <[e-mail]>

	* fhandler.h (fhandler_dev_mem): Erase member `init_phase' and
	member function `init'.
	* fhandler_mem.cc: Add typedefs for NT internal data types
	`SYSTEM_INFORMATION_CLASS' and `SYSTEM_BASIC_INFORMATION'.
	Add prototype for `NtQuerySystemInformation' function.
	(fhandler_dev_mem::fhandler_dev_mem): Takes over initialization task
	from `init'. Use `NtQuerySystemInformation' function to evaluate the
	size of physical memory instead of interval search.
	(fhandler_dev_mem::init): Eliminated.
	(fhandler_dev_mem::open): Don't call `init'.
	(fhandler_dev_mem::read): Eliminate check for `init_phase'.
	(dummy_autoload): Add load statement for `NtQuerySystemInformation'.

Sun Oct  8 22:38:40 2000  Christopher Faylor <[e-mail]>

	* dtable.cc (set_std_handle): Use std_consts array to control
	SetStdHandle settings.
	(dtable::fixup_after_fork): Ditto.
	* exceptions.cc (set_sig_errno): Remove some debugging output.
	* path.cc (path_conv::check): Don't OR need_directory with flags sent
	to symlink_info::check.
	(symlink_info::check): Use PATH_ALL_EXEC to determine when a file is
	executable.
	* path.h (path_types): Add PATH_ALL_EXEC.
	(isexec): Use PATH_ALL_EXEC so that cygexec types will be considered
	executable.
	* pinfo.h (_pinfo): Add a process handle that is kept open throughout
	the life of a cygwin pid.
	* sigproc.cc (proc_exists): Remove hopefully obsolete stuff.
	(proc_subproc): Set up process handle that is kept open throughout the
	life of a cygwin pid.  Reorganize PROC_WAIT stuff to use common code.
	(proc_terminate): Close pid lifetime process handle.
	(checkstate): Cleanup.
	(stopped_or_terminated): Move zombie cleanup.
	(remove_zombie): To here.
	* spawn.cc (spawn_guts): Reorganize reparenting code for 1247th time.

Sat Oct  7 13:59:15 2000  Christopher Faylor <[e-mail]>

	* fhandler.h (fhandler_base): Remove obsolete _rpos and _rsize
	elements.
	* fhandler.cc (fhandler_base::open): Ditto.
	* fhandler.cc (fhandler_base::fhandler_base): Ditto.
	(fhandler_base::read): Ditto.  Add more debugging output.  Don't issue
	a \r when \r\n detected.
	* pipe.cc (make_pipe): Streamline slightly.  Make debug output more
	interesting.
	* strace.cc (strace::vsprintf): Use __progname where appropriate to
	distinguish strace output when exec'ing.

Sat Oct  7 19:25:00 2000  Corinna Vinschen <[e-mail]>

	* fhandler.h (fhandler_dev_mem): Add methods mmap, munmap and msync.
	Add `unit' member.
	* fhandler_mem.cc (fhandler_dev_mem): Initialize `unit' as well.
	(init): Care for differences between /dev/mem, /dev/kmem (not
	implemented yet) and /dev/port.
	(open): Change debug message to reflect the device.
	(mmap): New function.
	(munmap): Ditto.
	(msync): Ditto.
	(fstat): Use unit when setting st_dev in stat structure.
	* mmap.cc (mmap): Handle MAP_ANONYMOUS flag.
	Change error handling slightly.
	* path.cc (get_device_number): Handle /dev/port.

Fri Oct  6 23:21:29 2000  Christopher Faylor <[e-mail]>

	* syscalls.cc (_read): Behave properly when passed previous version of
	O_NDELAY.  Fix up debugging output.

Thu Oct  5 20:34:48 2000  Christopher Faylor <[e-mail]>

	* net.cc (set_socket_inheritance): Rename from duplicate_socket.  Use
	NT specific call when appropriate.
	(__set_winsock_errno): Rename from set_winsock_errno.  Accept function
	and line as arguments.
	* path.cc (path_conv::check): Continue the neverending battle to make
	cygwin properly understand that path specs ending in a slash require
	that the path refer to a directory.  Windows does not do this by
	default.
	(symlink_info::check): Remove ENOTDIR test.  Move it to
	path_conv::check.
	* path.h: Remove obsolete constant.
	* winsup.h (set_winsock_errno): New macro.

Thu Oct  5 14:58:00 2000  Corinna Vinschen <[e-mail]>

	* fhandler.h: Add mmap(), munmap() and msync() to fhandler_base
	and fhandler_disk_file.
	* mmem.cc (mmap): Eliminated device dependent implementation details.
	These are moved to the appropriate fhandler class.
	(munmap): Ditto.
	(msync): Ditto.
	(fhandler_base::mmap): New method.
	(fhandler_base::munmap): Ditto.
	(fhandler_base::msync): Ditto.
	(fhandler_disk_file::mmap): Ditto.
	(fhandler_disk_file::munmap): Ditto.
	(fhandler_disk_file::msync): Ditto.

Thu Oct  5 01:52:43 2000  Christopher Faylor <[e-mail]>

	* net.cc: General cleanup.
	(fdsock): Return pointer to created fhandler_socket.
	(cygwin_socket): Use pointer returned by fdsock.  Return correct errno
	when fd < 0.

Thu Oct  5 00:48:40 2000  Christopher Faylor <[e-mail]>

	* exceptions.cc (interruptible): Add extra debugging.
	* sigproc.h (wait_sig): Fill in frame pointer, by default, prior to
	calling or suffer confusion due to September 7 change below.

Wed Oct  4 23:10:27 2000  Christopher Faylor <[e-mail]>

	* include/netinet/tcp.h: Remove winsock.h include.
	* include/sys/cygwin.h: Move windows specific reference within
	conditional.

Thu Oct  5  1:13:00 2000  Corinna Vinschen <[e-mail]>

	* include/sys/mman.h: Add missing MAP_FAILED macro.

Wed Oct  4 18:48:00 2000  Corinna Vinschen <[e-mail]>

	* fhandler.h (fhandler_dev_mem): Add method `init'. Add members
	`mem_size' and `init_phase'.
	* fhandler_mem.cc (init): New function to figure out the size of
	the physical memory.
	(open): Add checking for illegal flags. Change usage of access mode.
	(write): Add intended functionality.
	(read): Add parameter checking. Eliminate page size constant. Use
	getpagesize() instead. Don't touch errno and don't create debug output
	while init() is running.
	(lseek): Add bounds checking. Fix SEEK_END.
	(fstat): Eliminate page size constant. Use getpagesize() instead.
	(dup): Add intended functionality.

Mon Oct  2 22:15:00 2000  Corinna Vinschen <[e-mail]>

	* dcrt0.cc: Add LoadDLLFunc statement for RegEnumValueA().
	* net.cc: Change comments related to get_ifconf.
	(get_2k_ifconf): Eliminate `type' variable. Eliminate `sa' parameter.
	(get_nt_ifconf): Ditto.
	(get_9x_ifconf): Ditto. Rewritten.
	(get_ifconf): Change calls to OS specific functions.

Mon Oct  2 15:15:01 2000  Christopher Faylor <[e-mail]>

	* signal.cc (sigaction): Allow new action == oldaction.

Mon Oct  2 11:05:00 2000  Corinna Vinschen <[e-mail]>

	* fhandler_mem.cc: Load ntdll functions via autoload method.
	(load_ntdll_funcs): Eliminated.

Sun Oct  1 16:36:00 2000  Corinna Vinschen <[e-mail]>

	* fhandler_mem.cc (load_ntdll_funcs): Add missing __stdcall qualifiers.

Sun Oct  1 22:20:39 2000  Christopher Faylor <[e-mail]>

	* cygheap.cc (cygheap_init): Born again function.
	(_cmalloc): Reorganize to accommodate muto locking.
	(_cfree): Use muto lock to avoid multi-thread problems.
	* cygheap.h (incygheap): Just use cygheap_max to find upper cygwin heap
	bounds.
	* dcrt0.cc (dll_crt0_1): Reinstitute cygheap_init call.
	* path.cc (getcwd): Just return cwdstuff::get result, allowing correct
	handling of negative length.
	(cwdstuff::get): Malloc a buffer if one is not available.

Sun Oct  1  2:56:00 2000  Corinna Vinschen <[e-mail]>

	* Makefile.in: Add fhandler_mem.o to the dependencies.
	* dtable.cc (dtable::build_fhandler): Add case for FH_MEM.
	* fhandler.h: Add FH_MEM device type.  Add class fhandler_dev_mem.
	* fhandler_mem.cc: New file. Implementation of class fhandler_dev_mem.
	* path.cc: Add /dev/mem to windows_device_names.
	(get_device_number): Add FH_MEM type.

Sat Sep 30 00:43:42 2000  Christopher Faylor <[e-mail]>

	* cygheap.cc (init_cheap): Set aside space for heap walk pointer.