Commit Graph

166 Commits

Author SHA1 Message Date
Christopher Faylor b50fe8212f * sigproc.cc (no_signals_available): Fix so that non-zero exit state is a true
condition rather than errnoneously only checking other states when exist_state
was zero.
2003-11-29 00:31:37 +00:00
Christopher Faylor 62e070d72e * pinfo.h (_pinfo::getthread2signal): Remove obsolete function.
* cygtls.h (_threadinfo): Define tid more precisely.
(_threadinfo::operator HANDLE): Define.
* exceptions.cc (_threadinfo::interupt_now): Use _threadinfo HANDLE operator to
derive thread handle.
(setup_handler): Ditto.
* sigproc.cc: Reorganize includes.
2003-11-29 00:26:40 +00:00
Christopher Faylor 13584f077b * pinfo.h (_pinfo::getsig): Remove obsolete function, here and throughout.
* exceptions.cc: Ditto.
* fhandler_termios.cc: Ditto.
* signal.cc: Ditto.
* sigproc.cc: Ditto.
* Makefile.in: Revert previous change which made a cygwin.din newer than a
version.h a warning rather than an error.
2003-11-28 22:13:57 +00:00
Christopher Faylor 9a4d574b8d Eliminate use of sigframe and sigthread throughout.
* Makefile.in (DLL_OFILES): Add sigfe.o.  Remove reliance on cygwin.def from
cygwin0.dll dependency since dependence on sigfe.o implies that.  Generate def
file on the fly using 'gendef'.
* configure.in: Don't auto-generate cygwin.def.
* configure: Regenerate.
* cygwin.din: Add SIGFE stuff where appropriate.
* dcrt0.cc (dll_crt0_1): Initialize cygwin tls early in process startup.  Set
_main_tls to address of the main thread's cygwin tls.
* debug.h: Remove now unneeded WFSO and WFMO declarations.
* exceptions.cc (_last_thread): Define.
(set_thread_state_for_signals): New function.
(reset_thread_exception_for_signals): Ditto.
(init_thread_for_signals): Ditto.
(delete_thread_for_signals): Ditto.
(capture_thread_for_signals): Ditto.
(handle_exceptions): Set return address explicitly for exceptions prior to
calling sig_send.
(interrupt_on_return): Eliminate.
(setup_handler): Add preliminary implementation for dealing with
thread-specific signals by querying _main_tls.
(signal_exit): Use cygthread::main_thread_id instead of mainthread.id.
(call_signal_handler_now): For now, just handle the main thread.
* fork.cc (vfork): Save and restore main _my_tls.
* gendef: New file.  Generates def file and sigfe.s file.
* gentls_offsets: New file.  Generates offsets for perl to use in sigfe.s.
* how-signals-work.txt: Mention that info is obsolete.
* init.cc (dll_entry): Initialize cygwin tls storage here.
* miscfuncs.cc (low_priority_sleep): Make a C function for easier calling from
asm.
* perthread.h (vfork_save::tls): New element.
* signal.cc (nanosleep): Replace previous use of
sigframe.call_signal_handler_now with straight call to call_signal_handler_now.
(abort): Ditto.
* syscalls.cc (readv): Ditto.
* termios.cc (tcsetattr): Ditto.
* wait.cc (wait4): Ditto.
* sigproc.cc (sig_dispatch_pending): Ditto.
(sig_send): Ditto.
* sigproc.h: Declare call_signal_handler_now.
* thread.cc (pthread::thread_init_wrapper): Initialize cygwin tls.  Remove
obsolete and unworking signal stuff.
* thread.h (verifyable_object::sigs): Eliminate.
(verifyable_object::sigmask): Eliminate.
(verifyable_object::sigtodo): Eliminate.
(verifyable_object::exit): Make attribute noreturn.
(verifyable_object::thread_init_wrapper): Ditto.
(pthread_null::exit): Ditto.
* winbase.h (__stackbase): Always define.
* winsup.h (low_priority_sleep): Declare as a "C" function.
* include/cygwin/version.h: Bump API version to reflect sigwait export.
* include/sys/queue.h: Protect SLIST_ENTRY from previous declaration.
* signal.cc (sigwait): Implement.
* select.cc (fhandler_base::ready_for_read): Add debugging output.
* devices.h: Define more device pointers via their storage.
* devices.in: Don't parse things like /dev/inet/tcp, as they really have no
meaning.
* devices.cc: Regenerate.
* gendevices: Set proper protection for output file.
* cygtls.h: New file.
* gendef: New file.
* gentls_offsets: New file.
* tlsoffsets.h: New file.  Autogenerated.
* config/i386/longjmp.c: Remove.  File subsumed by gendef output.
* config/i386/makefrag: Remove obsolete file.
* fhandler.cc: Remove spurious access_worker declaration.
* spawn.cc (spawnve): Make debugging output more accurate.
* cygwin-gperf: Remove.
* devices.cc: Remove.
2003-11-28 20:55:59 +00:00
Christopher Faylor 0af8d6110b * sigproc.cc (sig_send): Correct below checkin. Use
thisframe.call_signal_handler.
2003-11-23 05:42:47 +00:00
Christopher Faylor 0670609d12 * sigproc.cc (proc_exists): A zombie process does not exist.
(sig_send): Improve debugging output.  Wait for pipe to be created before
trying to send to it.  Call call_signal_handler_now if sending a signal to
myself.
2003-11-23 05:34:00 +00:00
Christopher Faylor e6ba835513 * sigproc.cc (proc_subproc): Restrict permissions on ppid_handle.
* devices.shilka (device::parse): Restore check for tty in unit handling, but
without the previous typo.
* devices.cc: Regenerate.
* devices.h (DEV_CYGDRIVE_MAJOR): Change major number to one used by linux for
"user-mode virtual block device".
2003-09-28 15:46:00 +00:00
Christopher Faylor 7759daa979 * shared_info.h (CURR_MOUNT_MAGIC): Fix.
* sigproc.cc (sigpacket): New structure.
(sig_send): Fill out sigpacket structure to send to signal thread rather than
racily sending separate packets.
(wait_sig): Use sigpacket structure to receive info from signal sender.
2003-09-25 03:06:36 +00:00
Pierre Humblet 138847683d 2003-09-24 Pierre Humblet <pierre.humblet@ieee.org>
* shared_info.h (class user_info): New.
	(cygwin_user_h): New.
	(user_shared): New.
	(enum shared_locations): Replace SH_MOUNT_TABLE by SH_USER_SHARED;
	(mount_table): Change from variable to macro.
	* shared.cc: Use sizeof(user_info) in "offsets".
	(user_shared_initialize): Add "reinit" argument to indicate need
	to reinitialize the mapping. Replace "mount_table" by "user_shared"
	throughout. Call user_shared->mountinfo.init and
	user_shared->delqueue.init.
	(shared_info::initialize): Do not call delqueue.init.
	(memory_init): Add argument to user_shared_initialize.
	* child_info.h (child_info::mount_h): Delete.
	(child_info::user_h): New.
	* sigpproc.cc (init_child_info): Use user_h instead of mount_h.
	* dcrt0.cc (_dll_crt0): Ditto.
	* fhandler_disk_file.cc (fhandler_disk_file::close): Use
	user_shared->delqueue instead of cygwin_shared->delqueue.
	* fhandler_virtual.cc (fhandler_virtual::close): Ditto.
	* syscalls.cc (close_all_files): Ditto.
	(unlink): Ditto.
	(seteuid32): Add argument to user_shared_initialize.
2003-09-25 02:29:05 +00:00
Christopher Faylor 7ac6173643 * devices.cc: New file.
* 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.
2003-09-25 00:37:18 +00:00
Christopher Faylor 3400b4fc44 * dcrt0.cc (do_exit): Eliminate "C" linkage. Call events_terminate early.
(exit_states): Move out of source file into header file.
* winsup.h: Move exit_states here.  Remove "C" linkage from do_exit
declaration.
* debug.cc (lock_debug): Remove explicit (and incorrect) external for
exit_state.
* sigproc.cc (sig_dispatch_pending): Don't flush signals if exiting.
2003-09-23 04:02:07 +00:00
Christopher Faylor 11dcd1546f * fhandler_process.cc (fhandler_process::fill_filebuf): Open pinfo with
PID_MAP_RW.
* sigproc.cc (talktome): Ditto for winpids.
2003-09-17 02:10:13 +00:00
Christopher Faylor deb648cc8b * pinfo.h (winpids::pid_access): New element.
(winpids::winpids): Rejigger to set pinfo_access.
* pinfo.cc (winpids::add): Try to open shared memory region with supplied
pinfo_access first, then default to readonly.
* fhandler_termios.cc (tty_min::kill_pgrp): When getting list of pids to work
with, suggest opening with PID_MAP_RW.
* signal.cc (kill_pgrp): Ditto.
* sigproc.cc (sig_send): Perform a write check on todo prior to attempting to
increment it.  Return EACCES if we can't write to it.
2003-09-17 01:15:56 +00:00
Christopher Faylor 3ef50005c7 * dcrt0.cc (dlL_crt0_1): Set __argc_safe after __argc is absolutely know to be
set.
* exceptions.cc (sig_handle_tty_stop): Don't reset sigCONT event since it is
reset automatically.
* fork.cc (fork): Remove obsolete usage of PID_SPLIT_HEAP.
* include/sys/cygwin.h: Ditto.
* sigproc.cc (sig_send): Use sigframe init method to set frame since it checks
for previous ownership of the frame.
* sigproc.h (sigframe::init): Accept an "is_exception" argument.
2003-09-09 03:11:31 +00:00
Christopher Faylor 9547a8b3c3 * sigproc.cc (wait_sig_inited): Remove assertion since it is racy. 2003-09-08 21:10:23 +00:00
Christopher Faylor 75119e9980 * exceptions.cc (set_process_mask): Set pending signals only when signals
become unmasked.
* sigproc.cc (pending_signals): Flip back to a global.
(wait_sig): Don't set pending signals when there is an armed semaphore or
signal is blocked.
* shared.cc (shared_info::initialize): Add a username parameter for user-mode
mounts.  Reorganize to try to avoid startup race.
(memory_init): Move some stuff into shared_info::initialize.
* shared_info.h (shared_info::initialize): Change declaration.
(CURR_SHARED_MAGIC): Update.
2003-09-03 14:15:55 +00:00
Christopher Faylor c0a9bffd03 * cygheap.cc (cygheap_init): Allocate space for sigaction array in cygheap.
* cygheap.h (cygheap_types): Add HEAP_SIGS.
* exceptions.cc (signal_fixup_after_exec): Remove from this file.
* pinfo.h (pinfo::getsig): Just return global_sigs array.
(pinfo::sigs): Delete.
* sigproc.cc (signal_fixup_after_exec): Move it here.
(global_sigs): New global array, moved from pinfo structure.
(sigalloc): New function.  Allocate global sigaction array here.
(proc_subproc): Remove copysigs call.  It's automatic now.
* include/sys/cygwin.h (PID_NOCLDSTOP): New value.
* signal.cc (sigaction): Set myself->PID_NODCLDSTOP when appropriate.
* sigproc.h (sigalloc): Declare.
* fnmatch.c (fnmatch): Use C90 parameters.
(rangematch): Ditto.
* fhandler.cc (fhandler_base::raw_read): Use right coercion to avoid a compiler
warning.
2003-09-01 02:05:32 +00:00
Christopher Faylor f8e2f358c4 * Makefile.in (MALLOC_OFILES): Always fill in with correct malloc object.
* configure.in: Fill in MALLOC_OFILES with either debugging or regular malloc.
* configure: Regenerate.
* dlmalloc.c: Make various fruitless changes to attempt to get to work.
* dlmalloc.h: Ditto.
* malloc.cc (free): Check malloc pool when debugging.
* path.cc (win32_device_name): Eliminate compiler warning.
* sigproc.cc (sig_dispatch_pending): Remove use of was_pending.  Let
thisframe.call_signal_handler decide if handler should be called rather than
using bogus was_pending check.
* exceptions.cc (interrupt_setup): Remove accidentally checked in debugging
code.
* heap.cc (sbrk): Save rounded addess in user_heap_max.
2003-08-31 18:26:58 +00:00
Christopher Faylor b939e87080 * sigproc.cc (sig_dispatch_pending): Remove explicit call to
thisframe.call_signal_handler.
2003-08-30 20:43:06 +00:00
Christopher Faylor 99a8fab5a6 * sigproc.h: Make some functions regparm.
* sigproc.cc (checkstate): Make regparm.
(getevent): Change parameters in declaration, rename from getsem, make regparm.
(sig_send): Recognize that nosync is now an event.  Remove some old cruft from
previous interrupt anywhere signal handler.
(getevent): Change parameters in definition, rename from getsem.  Allocate
event rather than semaphore.
(wait_sig): Treat sigcatch_nosync as an event.
2003-08-29 02:59:06 +00:00
Christopher Faylor 5e8355c765 * exceptions.cc (sigreturn): Fix problem where old return address was not
properly restored for a nested signal.
2003-08-29 02:05:00 +00:00
Christopher Faylor e2bc5017fa * syscalls.cc (mount): Don't check win32_path when doing cygdrive mount. 2003-08-28 02:04:16 +00:00
Christopher Faylor 90f4768b78 * sigproc.cc (wait_sig): Count number of iterations through 'more_signals' loop
and issue a warning if DEBUGGING and excessive.
(WFSO): When debugging and infinite timeout, loop.
2003-08-27 20:42:52 +00:00
Christopher Faylor 095abc79ba * sigproc.cc (wait_sig): Remove redundant test in do/while. 2003-08-22 03:40:49 +00:00
Christopher Faylor a9f7754462 * sigproc.cc (wait_sig): Avoid infinite loop. 2003-08-22 01:07:01 +00:00
Christopher Faylor d688945c44 * miscfuncs.cc (low_priority_sleep): Sleep at same priority as main thread.
* sigproc.cc (wait_sig): Keep looping if there are more signals to consider and
we are flushing signals.
(sig_send): Put nonsync signals in the correct bucket.
2003-08-21 03:18:46 +00:00
Christopher Faylor 6f6d673cc5 * sigproc.cc (wait_sig): Ensure that myself->getsigtodo array is flushed on a
__SIGFLUSH.  Christopher Faylor <cgf@redhat.com>
* exceptions.cc (_sigreturn): Handle nested signals without growing the stack.
2003-08-20 05:15:33 +00:00
Christopher Faylor 5f31e0f305 * exceptions.cc (pending_signals): Remove unneeded declaration.
* sigproc.cc (pending_signals): Make static.
(wait_sig): Use defined values rather than integers for rc.  Never scan both
todo arrays as this could cause hangs if signals arrive from two different
sources.  Rename saw_pending_signals to saw_failed_interrupt.  Exit loop when
signal found.  Enter low-priority sleep, if necessary, after finished
signalling completion.  Set pending_signals when blocked
(from Pierre Humblet).
2003-08-20 02:31:26 +00:00
Christopher Faylor 06bb489932 * signal.cc (sigpending): Move.
* sigproc.cc (sigpending): To here.
(getlocal_sigtodo): Return process-local signal array.
(sigpending): Accommodate new process-local signal array.
(sig_send): Ditto.
(sig_set_pending): Ditto.
(wait_sig): Ditto.
2003-08-19 05:47:44 +00:00
Christopher Faylor 05cb7b17cb Throughout, eliminate argument to sig_dispatch_pending.
* exceptions.cc (setup_handler): Move non-interruptible condition handling
(back) to wait_sig (as suggested by Pierre Humblet).
(set_process_mask): Don't worry about calling sig_dispatch_pending from
sigthread since it is detected in the function anyway.
(sig_handle): Eliminate thisproc arg.  Don't call sig_dispatch_pending on
SIGCONT since that should happen automatically.
* sigproc.cc (sig_dispatch_pending): Eliminate justwake argument.  Just return
when called from sigthread.
(wait_sig): Change some variables to bool.  Change inner while to an if.  Move
uninterruptible signal handling here.
(sigproc_terminate): Don't call sig_dispatch_pending.  Just increment semaphore
on exit.
* speclib: Use slightly different (but still flawed) method for determining
symbols to extract from libraries.
2003-08-19 04:10:42 +00:00
Christopher Faylor c433f4617f Throughout, remove "include <errno.h>" from files which already include
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.
2003-06-16 03:24:13 +00:00
Corinna Vinschen 5c768c978c * shared_info.h: Match shared_name declaration with below change.
* shared.cc (shared_name): Use incoming char * parameter instead of
	local static buffer.
	(open_shared): Accomodate new calling convention for shared_name.
	* exceptions.cc (events_init): Ditto.
	* sigproc.cc (getsem): Ditto.
	* syscalls.cc (login): Ditto.
	(logout): Ditto.
	(pututline): Ditto.
2003-05-21 08:01:57 +00:00
Christopher Faylor 85738bf7e3 Joe Buehler <jhpb@draco.hekimian.com>
* fork.cc (fork_parent): Don't copy signals from parent to child here.
* sigproc.cc (proc_subproc): Copy signals from parent to child pinfo here.
2003-03-26 04:18:01 +00:00
Christopher Faylor 3543669fd3 * cygwin.din: Export btowc, trunc.
* include/cygwin/version.h: Reflect new exports.
* syscalls.cc (_stat): Rename to stat to avoid newlib wrapper.
* syscalls.cc (_fstat): Ditto.
* fhandler_console.cc (fhandler_console::close): Correct check for current tty.
Add debugging output when console is freed.
(set_console_state_for_spawn): Add debugging output.
* fhandler_tty.cc (fhandler_tty_slave::open): Don't decrement console open flag
when vforking.
* sigproc.cc (sigproc_terminate): Fix debugging output.
* spawn.cc (handle): Eliminate second argument.
(spawn_guts): Reflect elimination of argument change to handle.
* syscalls.cc (setsid): Add debugging output when console is freed.
* syscalls.cc (rename): Revert assumption that DELETE_ON_CLOSE works on Win9x.
2003-03-17 19:08:11 +00:00
Christopher Faylor 5cd8241242 * fhandler.cc (fhandler_base::open): Move some filesystem specific stuff.
(fhandler_disk_file::open): Accept some filesystem specific stuff.
* sigproc.cc (wait_for_sigthread): Become slightly more thread safe.
(sig_send): Don't assume that signal thread is ready.
2003-02-21 04:33:53 +00:00
Christopher Faylor c0b813e500 * sigproc.cc (sig_dispatch_pending): Remove assertion. 2002-11-29 00:43:50 +00:00
Christopher Faylor a0d3c309e4 * exceptions.cc (handle_sigsuspend): Force pending signal delivery before
waiting for signals to happen.
* signal.cc (sleep): Force pending signal delivery before sleeping.
(usleep): Ditto.
(signal): Force pending signal delivery before manipulating signal stuff.
(sigprocmask): Ditto.
(kill_worker): Ditto.
(abort): Ditto.
(sigaction): Ditto.
* syscalls.cc (readv): Force pending signal delivery before I/O.
(writev): Ditto.
(open): Ditto.
* net.cc: Ditto, throughout.
* sigproc.cc (sig_dispatch_pending): Deliver any pending signals prior to
returning.
* tty.cc (tty::make_pipes): Increase pipe buffer size.
2002-11-22 20:51:13 +00:00
Christopher Faylor 13af9a149d * exceptions.cc (sigthread::get_winapi_lock): Just do standard 'give up
timeslice' wait.
(setup_handler): Revamp YA to attempt to deliver signal multiple times on
failure rather than punting to wait_sig.
* miscfuncs.cc (low_priority_sleep): Accept INFINITE sleep to mean "don't reset
the priority after setting it to idle".  Return previous priority.
* winsup.h (SLEEP_0_STAY_LOW): Define.
(low_priority_sleep): Return an int.
* sigproc.h: Define WAIT_SIG_PRIORITY here.
* sigproc.cc: Remove WAIT_SIG_PRIORITY definition.
2002-11-22 04:43:47 +00:00
Christopher Faylor 6597785dc2 * exceptions.cc (setup_handler): Add debugging output. Set thread priority to
idle if pending signals to allow other threads to get into interruptible state.
* miscfuncs.cc (sys_mbstowcs): Save current thread in variable to avoid an OS
call.
* wait.cc (wait_sig): Reset thread priority each time through loop since the
priority may have been set down to deal with pending signals.
2002-11-15 04:35:13 +00:00
Christopher Faylor c0a02a4b42 * miscfuncs.cc (low_priority_sleep): New function. Use throughout where code
is supposed to be giving up time slice.
* fhandler_console.cc (fhandler_console::read): Switch button 2/3 output escape
sequences to be consistent with xterm.
2002-11-13 19:36:12 +00:00
Christopher Faylor 5806add291 * sigproc.cc (WAIT_SIG_PRIORITY): Bump to THREAD_PRIORITY_TIME_CRITICAL. 2002-11-05 04:23:41 +00:00
Christopher Faylor 43a299881f * sigproc.cc (WAIT_SIG_PRIORITY): Bump to highest priority. 2002-11-05 02:58:10 +00:00
Christopher Faylor 831d6fa520 * external.cc (cygwin_internal): Implement CW_CMDLINE.
* pinfo.h (SIGCOMMUNE): New signal type.
(commune_result): New structure for commune functions.
(picom): New enum for commune functions.
(_pinfo::hello_pid): New.  Pid who's communicating with me.
(_pinfo::tothem): New.  Handle of communicating pipe.
(_pinfo::fromthem): Ditto.
(_pinfo::commune_recv): Declare.
(_pinfo::commune_send): Declare.
(_pinfo::alive): Declare.
(_pinfo::cmdline): Declare.
(_pinfo::lock): Declare.
* pinfo.cc (set_myself): Initialize new _pinfo lock.
(_pinfo::alive): Define.  Determines if process still exists.
(_pinfo::commune_recv): Define.  Receive info from another cooperating process.
(_pinfo::commune_send): Define.  Send info to another cooperating process.
(_pinfo::cmdline): Define.  Determine command line of a given process.
* include/sys/cygwin.h (CW_CMDLINE): Define.
*sigproc.cc (talktome): Communicate with any processes who want to talk to me.
(wait_sig): Honor __SIGCOMMUNE.
* fhandler.cc (fhandler_virtual::fixup_after_exec): Declare.
* fhandler_proc.cc: Use malloc/free/realloc throughout rather than cmalloc
since buffers don't need to be propagated to subprocesses.
* fhandler_registry.cc: Ditto.
* fhandler_virtual.cc: Ditto.
(fhandler_virtual::fixup_after_exec): Define.
* fhandler_process.cc: Ditto for malloc/free/realloc.
(process_listin): Add "cmdline".
(fhandler_process::fill_filebuf): Implement PROCESS_CMDLINE.
* miscfuncs.cc (isalpha_array): New array populated with xor values for alpha
characters to switch from one case to another.
* string.h (cygwin_strcasematch): New asm implementation of case match.
* string.h (cygwin_nstrcasematch): New asm implementation of counted case
match.
2002-10-30 21:05:18 +00:00
Christopher Faylor 5ec14fe40a Change _function() to function() throughout.
* cygwin.din: Remove last vestiges (?) of newlib wrappers.
* cygthread.cc (cygthread::detach): Always wait for event or suffer an
apparently inavoidable race.
* dcrt0.cc (dll_crt0_1): Allocate threads after stack has been relocated.
* debub.cc (lock_debug): Don't acquire lock on exit.
* fork.cc (fork_child): Recreate mmaps before doing anything else since Windows
has a habit of using blocks of memory in the child that could previously have
been occupied by shared memory in the parent.
* mmap.cc (fhandler_disk_file::fixup_mmap_after_fork): Issue error here and
provide some details about what went wrong.
(fixup_mmaps_after_fork): Remove error message.
* shared.cc (open_shared): Move warning message so that more detail is
possible.
* sigproc.cc (sigproc_init): Initialize sync_proc_subproc to avoid a race.
(sigproc_terminate): Specifically wait for process thread to terminate.
2002-10-21 01:00:58 +00:00
Christopher Faylor bfda61d419 * sigproc.cc (wait_sig): Remove obsolete sigchld logic. 2002-10-20 04:17:59 +00:00
Christopher Faylor 969203ce91 * cygthread.cc (cygthread::stub): Reintroduce clearing of __name but do it
before SetEvent to eliminate a race.
(cygthread::terminate): Accumulate list of threads to check for termination and
call WaitForMultipleObjects on list rather than waiting for each thread
individually.
* sigproc.cc (subproc_init): Zap hwait_subproc thread handle since it is no
longer used.
* spawn.cc (spawn_guts): Fix so that cygthread::terminate is *really* called
only for exec.
2002-10-14 03:51:44 +00:00
Christopher Faylor 2a3bf3e2ce * Makefile.in (new-cygwin1.dll): Reorganize library order.
* dcrt0.cc (do_exit): Move thread stuff after vfork stuff or threads are
terminated during vfork.
* sigproc.cc (proc_terminate): Grab proc lock prior to signalling subproc
thread exit to avoid an extra "wait-for-thread-to-exit".
2002-10-10 05:23:23 +00:00
Christopher Faylor c4ec64d76b * cygthread.cc (cygthread::stub): Don't create an event for "cygself" threads.
Assume that they exit via an ExitThread call.
* cygthread.h (cygthread::SetThreadPriority): New function.
(cygthread::zap_h): New function.
* dcrt0.cc (do_exit): Move cygthread::terminate earlier and establish
exit_state guard.
* fhandler.h (fhandler_tty_master::output_thread): Delete.
* fhandler_tty.cc (fhandler_tty_master::init): Set priority for threads via
method.  Zap handles when done.  Don't treat process_output specially.
(process_output): Call ExitThread directly.
(fhandler_tty_master::fixup_after_fork): Don't worry about output_thread.
(fhandler_tty_master::fixup_after_exec): Ditto.
* sigproc.cc (proc_terminate): Don't detach from hwait_subproc.  Just let it
exit.
(sigproc_init): Close thread handle after initialization.
(wait_sig): Use GetCurrentThread() as SetThreadPriority call rather than
*event* handle.  Call ExitThread directly on termination.
(wait_subproc): Call ExitThread directly on termination.
* tty.cc (tty_list::terminate): Don't attempt t detach from output_thread.
2002-10-09 05:55:40 +00:00
Christopher Faylor c90e1cf179 * fhandler.cc (fhandler_base::dup): Don't set handle on failure. Caller has
already taken care of that.
* fhandler_console.cc (fhandler_console::open): Initialize handles to NULL.
(fhandler_console::close): Ditto.  GNUify non-GNU formatted functions calls
throughout.
2002-09-22 03:38:57 +00:00
Christopher Faylor 3bacc423cf * pinfo.h (pinfo::remember): Arrange for destructor call if proc_subproc
returns error.
* sigproc.cc (zombies): Store 1 + total zombies since proc_subproc uses
NZOMBIES element.
2002-08-19 14:59:27 +00:00