* 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.
(child_info_fork::mount_table): Remove.
(child_info_fork::myself_addr): Remove.
* fork.cc (fork_child): Don't set either of the above.
* dcrt0.cc (dll_crt0_1): Call memory_init as early as possible.
* fhandler_console.cc (console_state): Move to shared_info.h.
(fhandler_console::get_tty_stuff): Reflect open_shared arg change.
* pinfo.cc (myself_addr): Remove definition.
(pinfo::init): Get myself address from open_shared.
* pinfo.h (myself_addr): Remove declaration.
* shared.cc (open_shared): Rework so that known shared memory locations are
protected. Take shared memory type as fifth argument.
(memory_init): Reflect open_shared arg change.
* shared_info.h (shared_locations): New enum.
(console_state): Move here.
(open_shared): Reflect open_shared arg change in declaration.
(child_info_fork::heaptop): Remove obsolete element.
(child_info_fork::heabbase): Ditto.
(child_info_fork::heapptr): Ditto.
(child_info_fork::mount_table): New element.
(child_info_fork::myself_addr): Ditto.
* dcrt0.cc (dll_crt0_1): Set mount_table and myself_addr when forking.
(initial_env): Add newline to "sleeping" message.
* dll_init.cc (reserve_upto): Accommodate cygwin heap when freeing memory.
Make debugging output a little more descriptive.
* fork.cc (fork_parent): Save mount_table and myself_addr.
* pinfo.cc (myself_addr): New variable.
(set_myself): Pass PID_MYSELF flag to init.
(pinfo::Init): Honor PID_MYSELF. Save address where myself shared memory
resides in myself_addr, for fork.
* pinfo.h (myself_addr): Declare.
* shared.cc (memory_init): On fork, use previously saved address for location
of mount table.
* include/sys/cygwin.h (PID_MYSELF): New value.
* dtable.cc (dtable::stdio_init): Don't pass access type to
init_std_file_from_handle. It's always the same.
(dtable::init_std_file_from_handle): Remove access type argument. Assume
read/write.
* dtable.h (dtable::init_std_file_from_handle): Ditto for declaration.
* exceptions.cc (try_to_debug): Don't try to debug if already being debugged.
* fhandler_console.cc (shared_console_info_save): New variable.
(fhandler_console::get_tty_stuff): Save address of shared console stuff for
fork.
Initialize thread_sync event here which is used to Suspend using an event
rather than relying on SuspendThread/ResumeThread.
(cygthread::init): Save handle to runner thread for future termination.
(cygthread::cygthread): Only resume thread when it is actually suspended.
Otherwise signal thread completion event.
(cygthread::terminate): Forcibly terminate runner thread and any helper
threads. Call DisableThreadLibrary calls if execing.
* cygthread.h (cygthread::thread_sync): Declare.
* dcrt0.cc (do_exit): Eliminate calls to obsolete window_terminate and
shared_terminate.
* exceptions.cc (events_terminate): Don't bother closing title_mutex since it
is going away anyway.
* pinfo.cc (_pinfo::exit): Call cygthread::terminate to ensure that threads are
shut down before process exit or otherwise strange races seem to occur.
* shared.cc (shared_terminate): Eliminate.
* shared.h (shared_terminate): Eliminate declaration.
* winsup.h (window_terminate): Eliminate declaration.
* spawn.cc (spawn_guts): Call cygthread::terminate early in process if execing.
Call DisableThreadLibrary calls if execing.
* window.cc (Winmain): Call ExitThread to force exit.
(window_terminate): Eliminate.
* dcrt0.cc (do_exit): Track exit state more closely.
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.
* environ.cc (spenv::retrieve): Add debugging statements.
* pinfo.cc (set_myself): Don't call strace.hello if already stracing.
* strace.cc (strace): Move NO_COPY keyword so that it will actually take
effect.
Drop ZwQuerySystemInformation since NtQuerySystemInformation was
already available.
* fhandler_proc.cc (format_proc_uptime): Replace call to
ZwQuerySystemInformation by call to NtQuerySystemInformation.
(format_proc_stat): Ditto.
* fhandler_process.cc (format_process_stat): Replace call to
ZwQueryInformationProcess by call to NtQueryInformationProcess.
(get_process_state): Ditto.
(get_mem_values): Ditto. Replace call to ZwQueryVirtualMemory by
call to NtQueryVirtualMemory.
* ntdll.h: Cleanup. Drop ZwQuerySystemInformation since
NtQuerySystemInformation was already available. Replace declarations
of ZwXXX functions by declarations of NtXXX.
* pinfo.cc (winpids::enumNT): Replace call to ZwQuerySystemInformation
by call to NtQuerySystemInformation.
where appropriate, throughout. Remove unneeded exceptions.h, where
appropriate, throughout. Remove unneeded perprocess.h, where appropriate,
throughout.
required to allow use of some things from user loaded DLL.
(CW_STRACE_ON): Add new feature.
(CW_CYGWIN_PID_TO_WINPID): Ditto.
* pinfo.cc (set_myself): Call "strace.hello" to initiate possible strace
session.
(pinfo::init): Guard against dereferencing uninitialized myself.
* sigproc.cc (wait_sig): Call strace.hello() when __SIGTRACE "signal" received.
* strace.cc (strace::hello): New method.
* wincap.cc (wincapc::init): Avoid initializing if already initialized.
* wincap.h (wincapc::wincapc): New method.
* include/sys/cygwin.h: Add new CW_ enums. Kludge typedefs of {g,u}id_t if
required.
* strace.h (strace::hello): Declare new method.
Force dependencies for files which depend on autogenerated headers to ensure
that they are always built.
* child_info.h (child_info): Add new fields to accommodate new magic number
header stuff.
* dcrt0.cc: Rely on "child_info_magic.h" to ensure that correct child_info
magic numbers are used.
(dll_crt0_1): Temporarily remove _cygwin_testing_magic test.
(_dll_crt0): Do more testing on magic numbers from fork_info structure. Call
"multiple_cygwin_problem" where appropriate.
(multiple_cygwin_problem): Rename from multiple_cygwin_die. Issue a warning or
die, as appropriate based on cygwin version/magic number mismatch.
* pinfo.cc (pinfo::exit): Don't attempt to dereference `this' if it doesn't
exist. This can happen when a fatal error occurs early in process
initialization.
* shared.cc: Rely on "shared_info_magic.h" to accommodate that new magic number
header stuff.
(shared_info::initialize): Use new magic number stuff, for shared region.
(memory_init): Ditto, for mount table.
* shared_info.h: Accomodate new magic number stuff for shared region and mount
table.
* sigproc.cc: Rely on "child_info_magic.h" to accommodate new magic number
header stuff.
(init_child_info): Initialize new fields in child_info) to accomodate magic
numbers.
* winsup.h: Rename multiple_cygwin_die to multiple_cygwin_problem.
* include/cygwin/version.h: Define macros for manipulating version magic.
* cygmagic: New shell script for generating magic numbers.
* 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.
SNDCTL_DSP_GETBLKSIZE operation. Remove obsolete 'name' arg from fhandler_*
constructors throughout.
* winsup.h (winsock_active): New macro.
(winsock2_active): Ditto.
* autoload.cc (wsock_init): Use new macros to decide if winsock or winsock2 is
loaded.
(nonexist_wsock32): Dummy function to force winsock load.
(nonexist_ws2_32): Dummy function to force winsock2 load.
* fhandler.h (fhandler_socket::fstat): Declare new method. Currently unused.
* fhandler_socket.cc (fhandler_socket::fixup_before_fork_exec): Check that
winsock2 is active before trying WSADuplicateSocketA.
(fhandler_socket::fixup_after_fork): Add extra check for winsock2_active.
Otherwise use iffy procedures for Windows 95.
(fhandler_socket::fixup_after_exec): Add debugging.
(fhandler_socket::dup): Add debugging.
(fhandler_socket::fstat): New method.
(fhandler_socket::set_close_on_exec): Attempt to perform iffy stuff on Windows
95.
* errno.cc (_sys_nerr): Work around compiler strangeness.
* pinfo.cc (winpids::add): Add extra element at end of allocated array for
setting to NULL.
(winpids::enumNT): Ditto.
(winpids::init): Don't modify pidlist if it hasn't been allocated
(possibly due to malloc problem).
operators to simplify testing for directory and attributes, throughout.
* path.h (path_conv::exists): New method.
(path_conv::has_attribute): Ditto.
(path_conv::isdir): Ditto.
(path_conv::DWORD &): New operator.
(path_conv::int &): Ditto.
* dir.cc (rmdir): Eliminate a goto.
* dtable.cc (dtable::build_fhandler): Accept opt and suffix info for
path_conv.check. Return fh == NULL on path_conv error. Pass unit to set_name
as appropriate.
(dtable::reset_unix_path_name): New method.
* dtable.h (dtable): Declare new method. Reflect arg changes to
build_fhandler.
* fhandler.cc (fhandler_disk_dummy_name): Eliminate.
(fhandler_base::set_name): Expect paths to be NULL. Build unix_path_name from
win32_path_name when it is a device.
(fhandler_base::reset_unix_path_name): New method.
(fhandler_base::raw_read): Report EISDIR when ERROR_INVALID_FUNCTION or
ERROR_INVALID_PARAMETER and reading a directory.
(fhandler_disk_file::fstat): Don't call stat_dev since we should now never be
calling fhandler_disk_file methods with devices.
(fhandler_base::fhandler_base): Clear {unix,win32}_path_name.
(fhandler_base::~fhandler_base): Always free {unix,win32}_path_name.
(fhandler_disk_file::fhandler_disk_file): Remove set_no_free_names kludge.
(fhandler_disk_file::open): Ditto.
* fhandler.h (fhandler_base::no_free_names): Eliminate.
(fhandler_base::set_no_free_names): Ditto.
* fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Don't set
unix_path_name here.
* path.cc (fchdir): Lock fd table throughout. Use new
dtable::reset_unix_path_name method to reset path.
* syscalls.cc (stat_worker): Reorganize to always call fstat method. Pass
path_conv method to fhandler_*::open.
(chroot): Elminate a goto.
* dcrt0.cc (set_os_type): Set 'iswinnt' appropriately.
* cygheap.cc (init_cheap): Revert to using VirtualAlloc for allocating cygheap.
(cygheap_setup_for_child_cleanup): New function. Standard function to call
after calling CreateProcess to cleanup cygheap info passed to child.
(cygheap_fixup_in_child): Copy cygheap from shared memory into allocated space
under Windows 9x or if can't relocate shared space under NT.
* cygheap.h: Declare new function.
* spawn.cc (spawn_guts): Use cygheap_fixup_in_child.
* fork.cc (fork_parent): Ditto.
* winsup.h: Declare iswinnt.
fhandler.h.
* fhandler.h (fhandler_base::get_inheritance): New method.
* fhandler_socket.cc (fhandler_socket::create_secret_event): Use proper
close-on-exec inheritance when creating.
(fhandler_socket::check_peer_secret_event): Create handle as non-inheritable.
* environ.cc (codepage_init): To here.
* exceptoins.cc (SIG_NONMASKABLE): Remove SIGCONT from consideration since it
is supposed to be maskable.
* signal.cc (sigaction): Ditto.
* sigproc.cc (wait_sig): Ditto.
* winsup.h: Eliminate global declaration of codepage_init.
* dcrt0.cc (dll_crt0_1): Translate command line to OEM if current codepage is
OEM.
* environ.cc: Add new option 'codepage' to CYGWIN environment variable.
* fhandler_clipboard.cc (fhandler_clipboard::read): Read clipboard in OEM mode
if current codepage is OEM.
* fhandler_console.cc (fhandler_console::read): Only translate console input if
current codepage is ANSI.
* fhandler_console.cc (fhandler_console::write_normal): Translate output data
if current codepage is ANSI.
* pinfo.cc (codepage_init): New function. Setup current codepage from CYGWIN
environment variable and set codepage for file APIs.
* security.cc (read_sd): Translate file name to it if current codepage is OEM.
* winsup.h: (sys_wcstombs,sys_mbstowcs): Use current codepage for translations
between multibyte and widechar string and vice versa.
(winpids::enumNT): New method renamed from EnumProcessesNT. Use add method to
add elements to the lists.
(winpids::enum9x): New method renamed from EnumProcesses9x. Use add method to
add elements to the lists.
(winpids::enum_init): Accept 'winpid' parameter to control whether to add all
windows pids to the list.
(winpids::release): New method.
* pinfo.h (winpids): Reflect above changes.
* signal.cc (kill_pgrp): Ditto.
* external.cc (fillout_pinfo): Ditto.
execed process to avoid a race.
* sigproc.cc (wait_subproc): Print more info when a WFSO error occurs.
* automode.c: New file.
* syscalls.cc (close_all_files): Streamline slightly.
* cygheap.cc (ccalloc): Clear *entire* allocated array.
(EnumProcesses9x): Rename from EnumProcessesW95. Change arguments to be more
useful for cygwin.
(winpids::init): Accomodate argument changes.
(enum_init): Ditto.
* pinfo.h (winpids): Make pidlist dynamically extendable by storing it as a
pointer and remembering the size.
* ntdll.h: Add extra definitions needed for EnumProcessesNT. Reformat via
'indent'.
* security.cc (write_sd): Call `set_process_privileges' on the first
call to `write_sd'.
(set_process_privileges): Eliminate adjusting SE_BACKUP_NAME privilege.
* 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.
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.
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.
* 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 accomodate 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. 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.
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.
* 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.
* 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.
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.
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.
throughout.
* shared.h: Remove.
* cygwin_version.h: New file.
* delqueue.h: New file.
* environ.h: New file.
* host_dependent.h: New file.
* perprocess.h: New file.
* registry.h: New file.
* security.h: New file.
