(modify_handle): Declare new function.
* debug.cc (modify_handle): Define new function.
* fhandler.h (fhandler_base::fork_fixup): Change return value from void to
bool.
* fhandler.cc (fhandler_base::fork_fixup): Return true if fork fixup has been
done.
* pipe.cc (fhandler_pipe::set_close_on_exec): Set inheritance of protected
handle via ModifyHandle if DEBUGGING.
(fhandler_pipe::fixup_after_fork): Protect guard handle if fork fixup has been
done.
SECURITY_ATTRIBUTES argument.
* pipe.cc (fhandler_pipe::open): Duplicate guard from other process and protect
it appropriately. Eliminate unneeded writepipe_exists temporary variable. Set
inheritance appropriately.
(fhandler_pipe::set_close_on_exec): Revert change which eliminated handling
guard inheritance.
(fhandler_pipe::fixup_after_fork): Ditto. Use correct name of entity being
checked by fork_fixup.
(fhandler_pipe::fixup_after_exec): Don't bother with guard here.
(fhandler_pipe::dup): Cosmetic changes and revert creation of writepipe_exists
as noninheritable.
(fhandler_pipe::create): Revert change which eliminated SECURITY_ATTRIBUTES
argument. Revert change which always made writepipe_exists noninheritable.
* dtable.cc (dtable::stdio_init): Cosmetic change.
* fhandler.h (fhandler_base::create_read_state): Protect handle.
(fhandler_pipe::create_guard): Ditto. Always mark the handle as inheritable.
(fhandler_pipe::is_slow): Return boolean value rather than numeric 1.
* pipe.cc (fhandler_pipe::fhandler_pipe): Always flag that we need fork fixup.
(fhandler_pipe::open): Don't pass security attributes to create_guard.
(fhandler_pipe::set_close_on_exec): Don't handle guard here.
(fhandler_pipe::close): Accommodate now-protected guard handle.
(fhandler_pipe::fixup_in_child): Don't proected read_state here.
(fhandler_pipe::fixup_after_exec): Close guard handle if close_on_exec.
(fhandler_pipe::fixup_after_fork): Don't bother with guard here.
(fhandler_pipe::dup): Don't set res to non-error prematurely. Use boolean
values where appropriate. Protect guard and read_state.
(fhandler_pipe::create): Don't call need_fork_fixup since it is now the
default. Don't protect read_state or guard.
* pipe.cc (fhandler_base::ready_for_read): Use bool values for "avail".
* spawn.cc (spawn_guts): Set cygheap->pid_handle as inheritable when
protecting.
* select.cc (fhandler_pipe::ready_for_read): Actually get the guard mutex for
blocking reads.
(fhandler_console::invisible_console): Declare new variable.
(fhandler_console::need_invisible): Ditto.
(fhandler_console::has_a): Ditto.
* fhandler_console.cc (set_console_state_for_spawn): Eliminate return value.
Set up an invisible console if necessary prior to spawning.
(fhandler_console::invisible_console): Define.
* fhandler_tty.cc (fhandler_tty_slave::open): Use
fhandler_console::invisible_console to setup an invisible console.
* pipe.cc (fhandler_pipe::fixup_in_child): Define new function from
fixup_after_exec.
(fhandler_pipe::fixup_after_exec): Use fixup_in_child when appropriate.
(fhandler_pipe::fixup_after_fork): Ditto.
* spawn.cc (handle): Reorganize and modernize a little.
(spawn_guts): Rely on set_console_state_for_spawn to set the console into the
right state but don't create the process with "detached" flag if we have no
controlling tty since that confuses 'cmd'.
* dtable.cc (dtable::stdio_init): Don't set console as controlling terminal if
we have an invisible console.
* sigproc.cc (child_info::sync): Use correct name in ForceCloseHandle1.
cygthread to handle extra argument, throughout.
* cygthread.h (cygthread::callproc): Declare new method.
(cygthread::cygthread): Add optional length argument to allow copying arguments
to executing thread.
* cygthread.cc (cygthread::callproc): Define new method.
(cygthread::stub): Use callfunc to invoke thread func to allow potentially
allocating stack memory which will be returned.
(cygthread::simplestub): Ditto.
(cygthread::cygthread): Accept arglen argument. Reset ev here prior to
activating thread. Wait for ev after activating thread if we're copying
contents to the thread. Wait until the end before setting h, to allow thread
synchronization.
(cygthread::release): Don't reset ev here. Rely on that happening the next
time the thread is activated.
* pinfo.h (commune_process): Rename declaration from _pinfo::commune_process.
* pinfo.cc (commune_process): Ditto for definition. Modify slightly to allow
running as a separate cygthread.
* sigproc.cc (child_info::sync): Always wait for both subproc_ready and any
hProcess if we have a cygwin parent.
(talktome): Change argument to be a pointer to siginfo_t. Contiguously
allocate whole siginfo_t structure + any needed extra for eventual passing to
commune_process thread.
(wait_sig): Accommodate change in talktome argument.
* pipe.cc (fhandler_pipe::fixup_after_exec): Remove debugging.
eof_detected status flag. Delete is_eom and is_eof methods.
Move drive_size, bytes_per_sector, eom_detected status flag, as well
as the methods read_file, write_file, raw_read and raw_write to ...
(class fhandler_dev_floppy): ... here. Remove is_eom and is_eof
methods. Add dup method.
* fhandler_floppy.cc (IS_EOM): New macro.
(fhandler_dev_floppy::is_eom): Remove.
(fhandler_dev_floppy::is_eof): Remove.
(fhandler_dev_floppy::fhandler_dev_floppy): Initialize status flags.
(fhandler_dev_floppy::get_drive_info): Only call EX functions on
systems supporting them and stop suffering strange delays.
(fhandler_dev_floppy::read_file): Move here, drop setting
current_position.
(fhandler_dev_floppy::write_file): Move here, drop setting
current_position.
(fhandler_dev_floppy::open): Rearrange comment.
(fhandler_dev_floppy::dup): New method.
(fhandler_dev_floppy::get_current_position): New inline method. Use
instead of former current_position were appropriate.
(fhandler_dev_floppy::raw_read): Move here. Drop EOF handling.
(fhandler_dev_floppy::raw_write): Move here. Drop EOF handling.
(fhandler_dev_floppy::lseek): Remove useless conditions. Convert
sector_aligned_offset to LARGE_INTEGER to improve SetFilePointer call.
(fhandler_dev_floppy::ioctl): Move blocksize check in RDSETBLK case
to here.
* fhandler_raw.cc (fhandler_dev_raw::is_eom): Remove.
(fhandler_dev_raw::is_eof): Remove.
(fhandler_dev_raw::write_file): Remove.
(fhandler_dev_raw::read_file): Remove.
(fhandler_dev_raw::raw_read): Remove.
(fhandler_dev_raw::raw_write): Remove.
(fhandler_dev_raw::dup): Drop copying removed members.
(fhandler_dev_raw::ioctl): Drop blocksize testing.
* wincap.h: Implement has_disk_ex_ioctls throughout.
* wincap.cc: Ditto.
(wincap_vista): Preliminary wincaps for Windows Vista/Longhorn.
(wincapc::init): Add Vista/Longhorn handling.
* fhandler.h (fhandler_pipe::create_selectable): Declare.
(fhandler_fifo::close_one_end): Declare.
* fhandler_fifo.cc (fhandler_fifo::close_one_end): Define.
(fhandler_fifo::open_not_mine): Use close_one_end to close appropriate end of
pipe.
* pinfo.cc (_pinfo::commune_recv): Ditto.
* pipe.cc (fhandler_pipe::create_selectable): Rename from
create_selectable_pipe. Reorganize.
(fhandler_pipe::create): Use create_selectable.
* fhandler.h (fhandler_fifo::owner): Eliminate.
* fhandler_disk_file.cc (fhandler_base::fstat_fs): Handle on-disk devices
better.
(fhandler_base::fstat_helper): Ditto.
* fhandler_fifo.cc (fhandler_fifo::fhandler_fifo): Don't initialize obsolete
"owner".
(fhandler_fifo::open_not_mine): Add some debugging. Duplicate correct handle
when we own it.
(fhandler_fifo::open): Set flags from input, not from first pipe. Flag that
fork fixup is needed.
(fhandler_fifo::dup): Set errno correctly when DuplicateHandle fails.
* pinfo.cc (commune_send): Add debugging for fifo.
* cygwin/version.h: Bump API minor version to 127 to reflect exporting of
sigrelese.
(cygthread::terminate_thread): Eliminat racy code which reset ev and
thread_sync. Remove a few nonsensical inuse checks. Exit at the bottom.
(cygthread::detach): Rewrite to again try to ensure that we don't say we're
signalled when we are not signalled.
* fhandler.cc (fhandler_base::raw_read): Revert to signalling read success
quickly.
* pipe.cc (fhandler_pipe::close): Use base method to close handle.
* sigproc.h (WAIT_SIG_PRIORITY): Just trundle along at normal priority to allow
the pipe thread to do its thing if possible.
* pinfo.h (pinfo::zap_cwd): Declare new function.
(pinfo::zap_cwd): Move 'cd out of the way code' here.
(pinfo::exit): Use it here.
* spawn.cc (spawn_guts): And here.
* cygthread.cc (cygthread::detach): Be more careful about ensuring that sigwait
is properly waited for to avoid later missynchronization.
(cygthread::terminate_thread): Return true if thread was actually terminated
and all handles were closed.
* fhandler_base.cc (fhandler_base::raw_read): Use signal_read_state rather than
raw calls to win32 api.
(fhandler_base::read): Ditto.
* fhandler.h (fhandler_pipe::fixup_after_exec): Use method to create read_state
signalling.
(fhandler_pipe::create): Ditto.
* Makefile.in: Make some more files -fomit-frame-pointer.
event in the event that the thread was actually in the process of exiting.
* pipe.cc (fhandler_pipe::dup): read_state is not supposed to be inheritable.
Fix that.
* path.cc (path_conv::check): Set symlen = 0 to avoid a compiler warning.
* devices.h (devices::parsedisk): Declare new function.
* devices.in (devices::parsedisk): Define new function.
* dtable.cc (dtable::init_std_file_from_handle): Use device numbers rather than
name.
* fhandler_proc.cc (format_proc_partitions): Use parsedisk to generate disk
names from numeric codes. (This was broken on two of my systems previously and
is still broken now)
"device:" entry.
* fhandler.h (fhandler_socket::open): New method.
(fhandler_pipe::open): New method.
* fhandler_proc.cc (fhandler_proc::exists): Return -2 in case of
/proc/self.
* fhandler_process.cc (fhandler_process::exists): Return -2 in
case of symlinks, -3 for pipes and -4 for sockets.
(fhandler_process::fstat): Handle pipes and sockets.
(fhandler_process::open): Handle opening /proc/<pid>/fd.
(fhandler_process::fill_filebuf): Generate empty names for
non exisiting file descriptors.
* fhandler_socket.cc (fhandler_socket::get_proc_fd_name): Always
generate "socket:[number]" strings as on Linux.
(fhandler_socket::open): New method.
(fhandler_socket::fstat): Always return socket type.
* path.cc (symlink_info::set): Remove unused second parameter.
(path_conv::check): Handle pipes and sockets in /proc.
Set correct device type for AF_LOCAL sockets.
* pinfo.cc (_pinfo::commune_recv): Generate empty names for
non exisiting file descriptors.
(_pinfo::fd): Ditto.
* pipe.cc (fhandler_pipe::open): New method.
fhandlers.
* dtable.h (class dtable): Add cygheap_fdenum as friend class.
* fhandler.h (fhandler_base::get_proc_fd_name): New virtual method
to return a name for /proc/<pid>/fd.
(fhandler_socket::get_proc_fd_name): Ditto.
(fhandler_pipe::get_proc_fd_name): Ditto.
(fhandler_virtual::opendir): Make virtual method.
(fhandler_process::opendir): New method.
* fhandler.cc (fhandler_base::get_proc_fd_name): New method.
* fhandler_process.cc: Include ctype.h.
(PROCESS_FD): Define.
(process_listing): Add "fd".
(fhandler_process::exists): Fix comment. Return 1 in case of "fd"
directory. Handle files below "fd".
(fhandler_process::fstat): Drop "self" handling. Set correct link
count for directories.
(fhandler_process::opendir): New method to handle "fd" directory.
(fhandler_process::readdir): Add "fd" handling.
(fhandler_process::open): Drop "self" handling.
(fhandler_process::fill_filebuf): Ditto. Add "fd" handling. Fix
"maps" output string.
* fhandler_registry.cc (fhandler_registry::fstat): Set correct link
count for directories.
* fhandler_socket.cc (fhandler_socket::get_proc_fd_name): New method.
* path.cc (symlink_info::set): Fix thinko.
* pinfo.cc (_pinfo::commune_recv): Rename pathbuf to path throughout.
Drop local path variable in PICOM_FIFO case. Fix debug output.
Close handles as early as possible. Add PICOM_FDS and PICOM_FD
handling.
(_pinfo::commune_send): Add PICOM_FDS and PICOM_FD handling.
(_pinfo::fd): New method.
(_pinfo::fds): New method.
* pinfo.h (enum picom): Add PICOM_FDS and PICOM_FD.
(_pinfo::fd): Declare.
(_pinfo::fds): Declare.
* pipe.cc (fhandler_pipe::get_proc_fd_name): New method.
starting.
* child_info.h (init_child_info): Remove pid argument from declaration.
* cygheap.h (init_cygheap::pid): New element.
* dcrt0.cc (dll_crt0_0): Eliminate handling of now-noexistent cygpid parameter
in child_info struct. Set forkee to 'true' rather than cygpid since the pid
value was never used.
(dll_crt0_1): Ditto.
(_dll_crt0): Ditto.
* fork.cc (fork_child): Don't wait for sigthread. This is handled in the fork
call now.
(fork_parent): Remove obsolete pid argument from init_child_info call. Don't
do anything special with cygpid when DEBUGGING.
(fork): Delay all signals during fork.
(fork_init): Don't do anything special when DEBUGGING.
* pinfo.cc (set_myself): Remove pid parameter. Use new pid field in cygheap.
(pinfo_init): Don't pass pid argument to set_myself.
* sigproc.cc (sig_send): Wait for dwProcessId to be non-zero as well as
sendsig.
(init_child_info): Eliminate handling of pid.
(wait_sig): Implement method to temporarily hold off sending signals.
* sigproc.h (__SIGHOLD): New enum.
(__SIGNOHOLD): Ditto.
* spawn.cc (spawn_guts): Remove obsolete pid argument from init_child_info
call.
* autoload.cc (NtQueryInformationFile): Return nonzero on error.
* ntdll.h (FILE_PIPE_LOCAL_INFORMATION): Add.
(NtQueryInformationFile): Fix types for last two arguments.
* pipe.cc: Include stdlib.h, limits.h, and ntdll.h.
(create_selectable_pipe): New function to create a pipe that can be used with
NtQueryInformationFile for select.
(fhandler_pipe::create): Call create_selectable_pipe instead of CreatePipe.
(pipe): Use DEFAULT_PIPEBUFSIZE as argument to create_pipe.
* select.cc: Include limits.h and ntdll.h.
(peek_pipe): Add select_printf output. Call NtQueryInformationFile to
implement select for write on pipes.
(fhandler_pipe::select_read): Reorder field assignments to be consistent with
fhandler_pipe::select_write.
(fhandler_pipe::select_write): Initialize startup, verify, cleanup, and
write_ready fields for select_record.
(fhandler_pipe::select_except): Tweak indentation to be consistent with
fhandler_pipe::select_write.
tty_min, mtinfo and fs_info thoroughout.
* fhandler.h: Redefine all set_close_on_exec methods to take a bool
argument.
(enum conn_state): Rename from connect_state.
(class fhandler_base): Rename some status flags to align with
accessor method names. Drop encoded flag entirely. Unify status
accessor methods. Const'ify all read accessor methods.
(class fhandler_socket): Ditto.
(class fhandler_dev_raw): Ditto.
* fhandler_disk_file.cc (fhandler_base::fstat_fs): Use fs.fs_is_fat()
instead of evaluating FATness of file system here.
(fhandler_disk_file::opendir): Drop call to set_encoded().
(fhandler_disk_file::readdir): Use pc.isencoded() directly.
* mtinfo.h (class mtinfo_drive): Const'ify all read accessor methods.
* path.cc (fsinfo_cnt): Add.
(fs_info::update): Accomodate class changes. Evaluate file system
name specific flags right here. Add thread safety for reading and
writing global fsinfo array.
* path.h (enum path_types): Drop values for flags kept in fs already.
(struct fs_info): Move status informatin into private struct type
status_flags. Add accessor methods. Remove path and file system
name string arrays in favor of status bits.
(class path_conv): Use new fs_info status information where
appropriate.
(path_conf::fs_has_ea): Rename from fs_fast_ea.
(path_conf::fs_has_acls): New method.
(path_conf::root_dir): Remove.
(path_conf::volname): Remove.
* syscalls (statfs): Evaluate root dir locally.
* tty.h (class tty_min): Unify status accessor methods. Const'ify
all read accessor methods.
* devices.gperf: New file.
* devices.shilka: New file.
* cygwin-gperf: New file.
* cygwin-shilka: New file.
* fhandler_fifo.cc: New file.
* fhandler_nodevice.cc : New file. Reorganize headers so that path.h precedes
fhandler.h throughout. Remove device argument and unit arguments from fhandler
constructors throughout. Remove pc arguments to fhandler functions and use
internal pc element instead, throughout. Use dev element in pc throughout.
Use major/minor elements rather than units and device numbers previously in
fhandler class. Use correct methods for fhandler file names rather than
directly accessing file name variables, throughout.
* Makefile.in (DLL_OFILES): Add devices.o, fhandler_fifo.o
* dcrt0.cc (dll_crt0_1): Call device::init.
* devices.h: Renumber devices based on more Linux-like major/minor numbers.
Add more devices. Declare standard device storage.
(device): Declare struct.
* dir.cc (opendir): Use new 'build_fh_name' to construct a fhandler_* type.
* dtable.cc (dtable::get_debugger_info): Ditto.
(cygwin_attach_handle_to_fd): Ditto.
(dtable::release): Remove special FH_SOCKET case in favor of generic
"need_fixup_before" test.
(dtable::init_std_file_from_handle): Use either build_fh_dev or build_fh_name
to build standard fhandler.
(dtable::build_fh_name): Renamed from dtable::build_fhandler_from_name. Move
out of dtable class. Don't accept a path_conv argument. Just build it here
and pass it to:
(build_fh_pc): Renamed from dtable::build_fhandler. Move out of dtable class.
Use intrinsic device type in path_conv to create new fhandler.
(build_fh_dev): Renamed from dtable::build_fhandler. Move out of dtable class.
Simplify arguments to just take new 'device' type and a name. Just return
pointer to fhandler rather than trying to insert into dtable.
(dtable::dup_worker): Accommodate above build_fh name changes.
(dtable::find_fifo): New (currently broken) function.
(handle_to_fn): Use strechr for efficiency.
* dtable.h: Reflect above build_fh name changes and argument differences.
(fhandler_base *&operator []): Return self rather than copy of self.
* fhandler.cc (fhandler_base::operator =): Use pc element to set normalized
path.
(fhandler_base::set_name): Ditto.
(fhandler_base::raw_read): Use method to access name.
(fhandler_base::write): Correctly use get_output_handle rather than get_handle.
(handler_base::device_access_denied): New function.
(fhandler_base::open): Eliminate pc argument and use pc element of
fhandler_base throughout.
(fhandler_base::fstat): Detect if device is based in filesystem and use
fstat_fs to calculate stat, if so.
(fhandler_base::fhandler_base): Eliminate handling of file names and, instead,
just free appropriate component from pc.
(fhandler_base::opendir): Remove path_conv parameter.
* fhandler.h: Remove all device flags.
(fhandler_base::pc): New element.
(fhandler_base::set_name): Change argument to path_conv.
(fhandler_base::error): New function.
(fhandler_base::exists): New function.
(fhandler_base::pc_binmode): New function.
(fhandler_base::dev): New function.
(fhandler_base::open_fs): New function.
(fhandler_base::fstat_fs): New function.
(fhandler_base::fstat_by_name): New function.
(fhandler_base::fstat_by_handle): New function.
(fhandler_base::isfifo): New function.
(fhandler_base::is_slow): New function.
(fhandler_base::is_auto_device): New function.
(fhandler_base::is_fs_special): New function.
(fhandler_base::device_access_denied): New function.
(fhandler_base::operator DWORD&): New operator.
(fhandler_base::get_name): Return normalized path from pc.
(fhandler_base::get_win32_name): Return windows path from pc.
(fhandler_base::isdevice): Renamed from is_device.
(fhandler_base::get_native_name): Return device format.
(fhandler_fifo): New class.
(fhandler_nodevice): New class.
(select_stuff::device_specific): Remove array.
(select_stuff::device_specific_pipe): New class element.
(select_stuff::device_specific_socket): New class element.
(select_stuff::device_specific_serial): New class element.
(select_stuff::select_stuff): Initialize new elements.
* fhandler_disk_file.cc (fhandler_base::fstat_by_handle): Move to base class
from fhandler_disk_file.
(fhandler_base::fstat_by_name): Ditto.
(fhandler_base::fstat_by_name): Ditto.
(fhandler_disk_file::open): Move most functionality into
fhandler_base::open_fs.
(fhandler_base::open_fs): New function.
(fhandler_disk_file::close): Move most functionality into
fhandler_base::close_fs.
(fhandler_base::close_fs): New function.
* fhandler_mem.cc (fhandler_dev_mem::open): Use device name in debugging
output.
* fhandler_socket.cc (fhandler_socket::set_connect_secret): Copy standard
urandom device into appropriate place.
(fhandler_socket::accept): Reflect change in fdsock return value.
* fhandler_tty.cc: See "throughouts" above.
* net.cc: Accommodate fdsock change throughout.
(fdsock): Return success or failure, accept fd argument and device argument.
* path.cc (symlink_info::major): New element.
(symlink_info::minor): New element.
(symlink_info::parse_device): Declare new function.
(fs_info::update): Accommodate changes in path_conv class.
(path_conv::fillin): Ditto.
(path_conv::return_and_clear_normalized_path): Eliminate.
(path_conv::set_normalized_path): New function.
(path_conv::path_conv): Set info in dev element. Use path_conv methods Check
for FH_FS rather than FH_BAD to indicate when to fill in filesystem stuff.
where appropriate rather than direct access. Use set_normalized_path to set
normalized path.
(windows_device_names): Eliminate.
(get_dev): Ditto.
(get_raw_device_number): Ditto.
(get_device_number): Ditto.
(win32_device_name): Call new device name parser to do most of the heavy
lifting.
(mount_info::conv_to_win32_path): Fill in dev field as appropriate.
(symlink_worker): Handle new device files.
(symlink_info::check): Ditto.
(symlink_info::parse_device): Define new function.
* path.h (executable_states): Move here from fhandler.h.
(fs_info): Rename variables to *_storage and create methods for accessing same.
(path_conv): Add dev element, remove devn and unit and adjust inline methods to
accommodate.
(set_normalized_path): Declare new function.
* pinfo.cc (_pinfo::commune_recv): Add broken support for handling fifos.
(_pinfo::commune_send): Ditto.
* pipe.cc (fhandler_pipe::close): check for existence of handle before closing
it.
(handler_pipe::create): Rename from make_pipe. Change arguments to accept
fhandler_pipe array. Accommodate fifos.
(pipe): Rework to deal with fhandler_pipe::create changes.
(_pipe): Ditto.
* select.cc: Use individual device_specific types throughout rather than
indexing with obsolete device number.
(set_bits): Use is_socket call rather than checking device number.
* shared_info.h (CURR_MOUNT_MAGIC): Update.
(conv_to_win32_path): Reflect addition of device argument.
* syscalls.cc (mknod_worker): New function.
(open): Use build_fh_name to build fhandler.
(chown_worker): Detect if this is an 'auto' device rather than an on-filesystem
device and handle appropriately.
(chmod_device): New function.
(chmod): Detect if this is an 'auto' device rather than an on-filesystem device
and handle appropriately. Use chmod_device to set mode of in-filesystem
devices.
(stat_worker): Eliminate path_conv argument. Call build_fh_name to construct
fhandler. Use fh->error() rather than pc->error to detect errors in fhandler
construction.
(access_worker): New function pulled from access. Accommodate in-filesystem
devices.
(access): Use access_worker.
(fpathconf): Detect if this is an 'auto' device rather than an on-filesystem
device and handle appropriately.
(mknod_worker): New function.
(mknod32): New function.
(chroot): Free normalized path -- assuming it was actually cmalloced.
* tty.cc (create_tty_master): Tweak for new device class.
(tty::common_init): Ditto.
* winsup.h (stat_worker): Remove.
(symlink_worker): Declare.
* exceptions.cc (set_process_mask): Just call sig_dispatch_pending and don't
worry about pending_signals since sig_dispatch_pending should always do the
right thing now.
(sig_handle): Reorganize SIGCONT handling to more closely conform to SUSv3.
* pinfo.h: Move __SIG enum to sigproc.h.
(PICOM_FIFO): New enum element.
(_pinfo): Remove 'thread2signal' stuff throughout class.
(_pinfo::commune_send): Make varargs.
(_pinfo::sigtodo): Eliminate.
(_pinfo::thread2signal): Ditto.
* signal.cc (kill_worker): Eliminate call to setthread2signal.
* sigproc.cc (local_sigtodo): Eliminate.
(getlocal_sigtodo): Ditto.
(sigelem): New class.
(pending_signals): New class.
(sigqueue): New variable, start of sigqueue linked list.
(sigcatch_nonmain): Eliminate.
(sigcatch_main): Eliminate.
(sigcatch_nosync): Eliminate.
(sigcomplete_nonmain): Eliminate.
(pending_signals): Eliminate.
(sig_clear): Call signal thread to clear pending signals, unless already in
signal thread.
(sigpending): Call signal thread to get pending signals.
(sig_dispatch_pending): Eliminate use of pending_signals and just check
sigqueue.
(sigproc_terminate): Eliminate all of the obsolete semaphore stuff. Close
signal pipe handle.
(sig_send): Eliminate all of the obsolete semaphore stuff and use pipe to send
signals.
(getevent): Eliminate.
(pending_signals::add): New function.
(pending_signals::del): New function.
(pending_signals::next): New function.
(wait_sig): Eliminate all of the obsolete semaphore stuff. Use pipe to
communicate and maintain a linked list of signals.
* sigproc.h: Move __SIG defines here. Add __SIGPENDING.
(sig_dispatch_pending): Remove "C" specifier.
(sig_handle): Accept a mask argument.
* thread.cc: Remove signal handling considerations throughout.
cygerrno.h.
* include/cygwin/config.h (__DYNAMIC_REENT__): Define.
* include/cygwin/version.h: Bump API minor version.
* cygwin.din: Export __getreent
* cygerrno.h: Include errno.h. Fix places where _impure_ptr is used directly
to store the errno value.
* debug.cc (__set_errno): Ditto.
* errno.cc: Remove _RRENT_ONLY define to get errno.cc compiled.
* signal.cc: Rename _reent_clib to _REENT throughout.
* thread.h (reent_clib): Remove prototype.
* thread.cc (reent_clib): Rename reent_clib to __getreent. Return _impure_ptr
until MTinterface is initialized.
(reent_winsup): Fix a possible SEGV when _r == NULL. Return NULL instead.
* MTinterface::fixup_after_fork: Switch reent back to _impure_ptr to keep
signal handling running when fork is called from a thread other than the
mainthread.
needed.
* dtable.cc (dtable::vfork_parent_restore): Remove assertion.
* pipe.cc (fhandler_pipe::close): Don't close read_state during fork_fixup
since it wasn't inherited.
whose second arguments are both the lenght and the return value.
* fhandler.cc (fhandler_base::read): Rework slightly to use second argument as
input/output. Tweak CRLF stuff.
(fhandler_base::readv): Accommodate fhandler_*::read changes.
* cygthread.h (cygthread::detach): Declare as taking optional handle argument.
(cygthread::detach): When given a handle argument, wait for the handle to be
signalled before waiting for thread to detach. Return true when signal
detected.
(cygthread::detach): Accept a "wait_for_signal" argument.
(cygthread::terminate_thread): New function.
* cygthread.cc (cygthread::stub): Set stack pointer argument.
(cygthread::terminate_thread): New function. Forcibly terminate thread.
(cygthread::detach): Optionally wait for signals and kill thread when signal
arrives.
* exceptions.cc (signal_exit): Set signal_arrived prior to exiting to wake up
anything blocking on signals.
* fhandler.h (fhandler_base::set_r_no_interrupt): Change to accept bool
argument.
(fhandler_pipe::ready_for_read): Declare.
* pipe.cc (pipeargs): New structure.
(read_pipe): New thread stub wrapper for normal pipe read.
(fhandler_pipe::read): Modify to call reader in a cygthread, terminating on
signal, as appropriate.
* select.cc (fhandler_pipe::ready_for_read): Define new function.
Christopher Faylor
Corinna Vinschen
Pierre Humblet