Commit Graph

449 Commits

Author SHA1 Message Date
Christopher Faylor 77f4a25028 * Makefile.in: Autogenerate some header files which provide magic numbers.
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.
2001-12-26 04:53:34 +00:00
Christopher Faylor 243a041bd0 * dll_init.h (class dll_list): Reorder functions to avoid compiler "can't
inline" warnings.
* security.h (class cygsid): Ditto.
* sigproc.cc (get_proc_lock): Ditto.
* sigproc.h (class sigframe): Ditto.
* sync.h (class muto): Ditto.
* fhandler.h (fhandler_base::get_guard): Actually MAKE virtual as previously
indicated.
* pipe.cc (make_pipe): Remove extraneous set_errno.
* syscalls.cc (_open): Ditto.
* select.cc (peek_pipe): Need to check that there is still something to read
from the pipe after acquiring the mutex since another process/thread could have
eaten the input before we got to acquiring the lock.  (Thanks to Nick Duffek
for this inspiration.)
2001-11-03 03:32:27 +00:00
Christopher Faylor 1229d4f4ee * dtable.cc (dtable::build_fhandler): Issue internal error on unknown device.
* 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.
2001-11-01 21:15:53 +00:00
Christopher Faylor 774cd790fc * sigproc.cc (sigproc_terminate): Don't signal main thread when exiting.
* sigproc.h (sigframe): Decorate some methods with `inline'.
(new_muto): Coerce pointer to new to void *.
2001-10-31 02:58:38 +00:00
Christopher Faylor 47063f00e4 Add "path.h" include throughout, where needed. Use new path_conv methods and
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.
2001-10-01 04:10:07 +00:00
Christopher Faylor 5e733918c0 * exceptions.cc (setup_handler): Always relinquish lock after we've
interrupted.
* fhandler.cc: Move pipe methods to pipe.cc.
* fhandler.h (fhandler_pipe): Add new methods.
* fork.cc (sync_with_parent): Make error messages more informative.
* pipe.cc (fhandler_pipe::fhandler_pipe): Move here from fhandler.cc.
(fhandler_pipe::lseek): Ditto.
(fhandler_pipe::set_close_on_exec): New method.
(fhandler_pipe::read): Ditto.
(fhandler_pipe::close): Ditto.
(fhandler_pipe::dup): Ditto.
(make_pipe): Create the guard mutex on the read side of the pipe.
* select.cc (peek_pipe): Use guard_mutex to discover if we have the right to
read on this pipe.
(fhandler_pipe::readh_for_read): Pass the read pipe guard mutex to peek_pipe.
* syscalls.cc (_read): Always detect signal catchers, for now.
* debug.cc (makethread): Eliminate hack to make thread inheritable.
* sigproc.cc (subproc_init): Don't use hack to make thread inheritable.
2001-09-22 16:55:02 +00:00
Christopher Faylor 9661a0c8b7 * dcrt0.cc (dll_crt0_1): Create vfork main storage here so that it can be
queried in waitsig later.
* sigproc.cc (wait_sig): Don't deliver a signal if in a vfork.
* fork.cc (vfork): Deliver all signals on parent return from vfork.
2001-09-15 00:47:44 +00:00
Christopher Faylor 6409b03b1a * sigproc.cc (NZOMBIES): Reduce substantially to minimize memory use. 2001-09-10 00:19:06 +00:00
Christopher Faylor e2ea684e4e * fork.cc (fork_parent): Stop malloc activity while fork is in control of the
heap.
* sigproc.cc (NZOMBIES): Rename from ZOMBIEMAX for clarity.
(zombies): Revert to original behavior.  Allocating zombie array resulted in
performance hit.
* winsup.h: Declare malloc lock routines.
2001-09-09 03:34:36 +00:00
Christopher Faylor 1ff9f4b937 * cygheap.h (init_cygheap): Move heap pointers here.
* include/sys/cygwin.h (perprocess): Remove heap pointers.
* dcrt0.cc (__cygwin_user_data): Reflect obsolete perprocess stuff.
(_dll_crt0): Don't initialize heap pointers.
(cygwin_dll_init): Ditto.
(release_upto): Use heap pointers from cygheap.
* heap.h: Ditto.
* fork.cc (fork_parent): Ditto.  Don't set heap pointers in ch.
(fork_child): Remove obsolete sigproc_fixup_after_fork.
* shared.cc (memory_init): Reorganize so that cygheap initialization is called
prior to regular heap since regular heap uses cygheap now.
* sigproc.cc (proc_subproc): Eliminate zombies allocation.
(sigproc_init): Move zombies alloation here.  Don't free up array on fork, just
reuse it.
(sigproc_fixup_after_fork): Eliminate.
* sigproc.h: Ditto.
* include/cygwin/version.h: Reflect change to perprocess structure.
2001-09-07 21:32:07 +00:00
Christopher Faylor 4ce15a4980 * cygheap.h (init_cygheap): Move bucket array here from cygheap.cc.
* cygheap.cc: Throughout use bucket array from cygheap.
* sigproc.cc (proc_subproc): Dynamically allocate zombie buffer to save DLL
space.
(sigproc_fixup_after_fork): Free zombie array after a fork.
* sigproc.h (sigproc_fixup_after_fork): Declare.
* dir.cc (mkdir): Expand buffer for security descriptor to 4K to avoid stack
corruption.
* fhandler.cc (fhandler_base::open): Ditto.
* path.cc (symlink): Ditto.
2001-09-06 03:39:18 +00:00
Christopher Faylor 5ac73dfead * cygwin.sc: Revert to previous NO_COPY behavior.
* winsup.h: Ditto.
* sigproc.cc: Ditto.
* autoload.cc: Ditto.
2001-08-31 18:16:16 +00:00
Christopher Faylor 5835f2cf8d * cygwin.sc: New file -- linker script for building cygwin DLL.
* Makefile.in: Use linker script to control location of cygheap.
* cygheap.cc (buckets): Make static.
(init_cheap): Remove special iswinnt handling.  Allocate cygheap at a fixed
location.  Display more info when allocation fails.
(cygheap_fixup_in_child): Try harder to move cygheap to correct location.
Display more info when allocation fails.
* fhandler.h (fhandler_socket): Add macros for tracking socket shutdown state.
* net.cc (cygwin_shutdown): Set appropriate shutdown value for future use.
* select.cc (select_stuff::cleanup): New method.
(cygwin_select): Call cleanup explicitly to avoid a race.
(select_stuff:~select_stuff): Call cleanup chain via cleanup method.
(fhandler_socket::select_read): Set *_ready when shutdown has been called on
the socket.
(fhandler_socket::select_write): Ditto.
(fhandler_socket::select_except): Ditto.
* winsup.h: Move NO_COPY to "COMMON" section.
* autoload.cc (wsock_started): Avoid initializing NO_COPY value.
* sigproc.cc: Remove initialization from NO_COPY variables.
(sigproc_init): Initialize sig_loop_wait here, rather than via initialization.
(subproc_init): Initialize proc_loop_wait here, rather than via initialization.
2001-08-31 05:06:14 +00:00
Christopher Faylor 6b91b8d53b Throughout, reorganize header file inclusion to put security.h prior to
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.
2001-07-26 19:22:24 +00:00
Christopher Faylor 5457dfcb81 * child_info.h: Bump magic number.
(class child_info): Add an element.
* cygheap.cc (init_cheap): Allocate cygwin heap in shared memory area.
(cygheap_fixup_in_child): Map cygwin heap, passed from parent via shared memory
into correct address.
(cygheap_setup_for_child): New function.
* cygheap.h: Declare new functions.
* dcrt0.cc (dll_crt0_1): Accomodate new cygheap_fixup_in_child arguments.
Avoid protecting subproc_ready unless it is spawn/nowait.
* fork.cc (fork_parent): Use new cygheap_setup_for_child function to setup
cygwin heap info.  Close passed cygheap shared memory handle.
* spawn.cc (spawn_guts): Ditto.  Also, reorganize to avoid synchronization
between parent and child in non-P_OVERLAY case.
* sigproc.cc (wait_sig): Only signal subproc_ready when execing.
2001-07-17 03:41:52 +00:00
Christopher Faylor 125205875b * exceptions.cc (interrupt_setup): Move actions from setup_handler to here.
(setup_handler): Move actions after a successful interrupt to interrupt_setup.
* fork.cc (vfork): Augment debugging output.
* sigproc.cc (proc_subproc): Ditto.
* spawn.cc (spawn_guts): Ditto.  Correctly fill out progname when spawn
NO_WAIT.  Call signal handler when a signal arrives.
* sigproc.h: Declare a function.
2001-06-24 21:57:50 +00:00
Christopher Faylor 3ecfcf5715 * pinfo.cc: Use autoloaded ToolHelp functions throughout for Win9x.
* autoload.cc: Autoload ToolHelp functions.
2001-06-11 17:57:10 +00:00
Christopher Faylor 161edfaa00 * exceptions.cc (sigdelayed): Ensure that signal is cleared as the last
operation or suffer races.
* sigproc.cc (proc_subproc): Deal with zombie array overflow.
2001-06-10 16:00:23 +00:00
Christopher Faylor 63b61cd19f Revert much of previous erroneous checkin. Add ChangeLog entry.
* pinfo.h: Correctly set __SIGOFFSET.
* path.cc (hash_path_name): Avoid calling library functions for simple copying
of characters.
* shortcut.c: Use WIN32_LEAN_AND_MEAN.
* smallprint.c: Ditto.
* environ.cc (getwinenv): Minor clarity fix.
* localtime.c: No need to include windows.h
* string.h: New file.
2001-05-04 21:02:15 +00:00
Christopher Faylor 17743fbc49 * exceptions.cc (ctrl_c_handler): Always send signal to process if it has no
tty.
2001-05-04 20:39:38 +00:00
Christopher Faylor 70c7f359b1 * exceptions.cc (handle_exceptions): Break out of "loop" if the debugger
doesn't seem to be attaching to our process.
2001-05-03 15:00:38 +00:00
Christopher Faylor cba63823f8 * thread.cc (thread_init_wrapper): Use _REENT_INIT to initialize the reent
structure of newlib.
* sigproc.h (sig_send): Add exception parameter to sig_send.
* sigproc.cc (sig_send): Ditto.  Use it when setting frame info.
* exceptions.cc (handle_exceptions): Use exception flag when calling sig_send.
2001-04-27 18:50:59 +00:00
Christopher Faylor 968d91b2e6 * sigproc.h [sigthread]: Add exception field.
[sigframe::~sigframe]: Clear exception field.
[sigframe::set]: Set exception field from caller.
* sigproc.cc (sig_send): Set exception field when frame pointer is passed in.
* exceptions.cc (interrupt_on_return): Always treat exception as interruptible.
2001-04-25 19:11:37 +00:00
Christopher Faylor 0381fec68f Throughout, change fdtab references to cygheap->fdtab.
* child_info.h (cygheap_exec_info): Eliminate special fdtab stuff.
* spawn.cc (spawn_guts): Ditto.
* cygheap.cc (cygheap_init): Initialize fdtab, if appropriate.
* cygheap.h (CYGHEAPSIZE): Include size of init_cygheap.
(_cmalloc_entry): Include fdtab here.
* dtable.h (dtable): Declare/define new methods.
* dtable.cc (dtable::vfork_child_fixup): New method.
(dtable::fixup_after_exec): Remove unneeded extra arguments.
* dcrt0.cc (dll_crt0_1): Ditto.
* environ.cc (getwinenv): Use case sensitive comparison.
(winenv): Make a copy of environment cache to avoid realloc problems when
duplicate environment variables exist in the environment.  (From Egor Duda)
* net.cc (cygwin_socket): Revert Apr 14 change.
* include/sys/file.h: Protect against previous X_OK definition.
* passwd.cc: Eliminate passwd_sem throughout.
* security.cc: Ditto.
* cygwin.din: Export New functions.
* passwd.cc (read_etc_passwd): Make race safe.
(getpwuid_r): New function.
(getpwnam_r): New function.
2001-04-18 21:10:15 +00:00
Christopher Faylor f611148366 * sigproc.h (class sigframe): Implement 'unregister()' method.
(sigframe::~sigframe): Use unregister method.
(sigframe::call_signal_handler): Declare new method.
* exceptions.cc (sigframe::call_signal_handler): New method.  Unregisters
current sigframe before calling signal handler.
(setup_handler): Clear waiting threads prior to arming signal_arrived.
* syscalls.cc (_read): Change goto to loop.  Recalculate sigframe inside of
loop so that constructor is called when appropriate.
* wait.cc (wait4): Ditto.
* signal.cc: Change "sig" to "signal" in debugging messages throughout.
* sigproc.cc: Ditto.
2001-04-01 00:06:17 +00:00
Christopher Faylor 7cf3b655ec * shortcut.c (PATH_ALL_EXEC): Add parentheses to avoid a compiler warning.
* exceptions.cc (setup_handler): Clarify debugging message.
* sigproc.cc (proc_subproc): Remove PROC_CHILDSTOPPED test.  It is handled by
normal PROC_CLEARWAIT case.
(wait_sig): Eliminate "dispatched" tracking.  Remove __SIGCHILDSTOPPED test.
Decrement counter again before jumping out of InterlockedDecrement loop so that
subsequent InterlockedIncrement will keep the counter at the correctly
decremented value and also detect when there are pending signals.
* sigproc.h: Remove __SIGCHILDSTOPPED element.
(procstuff): Remove PROC_CHILDSTOPPED element.
2001-03-10 23:37:50 +00:00
Egor Duda 0917ed5950 * sigproc.cc (getsem): Make semaphore always non-inheritable. 2001-02-21 11:40:22 +00:00
Christopher Faylor cde0c2fbca * fork.cc (fork_parent): Return EAGAIN when can't record pid.
* pinfo.h (pinfo::remember): Return value of call to proc_subproc.
* sigproc.cc (proc_subproc): Return error if can't record pid.
2001-02-10 04:20:52 +00:00
Christopher Faylor 2a6fc028ba Throughout, change 'cygwin_shared.mount' to 'mount_table'.
* child_info.h (child_info): Move shared_h, console_h to cygheap.  Add mount_h.
* cygheap.h (init_cygheap): Add shared_h, console_h.
* cygheap.cc (init_cheap): Initialize heap at a fixed location after the shared
memory regions.  Initialize cygheap->user name here.
* dcrt0.cc (dll_crt0_1): Call getpagesize () to initialize constants.  Remove
cygheap_init since it is done in shared_init now.
(_dll_crt0): Initialize mount_h, remove shared_h and console_h initialization.
* fhandler_console.cc (console_shared_h): Eliminate.
(get_tty_stuff): Use cygheap->console_h rather than console_shared_h.
* heap.cc (heap_init): Use page size constant calculated earlier in
initialization.
* shared.cc: Eliminate cygwin_shared_h.  Add cygwin_mount_h.
(mount_table_init): New function for initializing a user mount table.
(open_shared_file_map): Use constant for shared memory region.  Initialize
cygheap and mount table here.
(open_shared): Improve debugging output.
(shared_info::initialize): Eliminate call to mount.init.
(shared_terminate): Use cygheap->shared_h.  Close cygwin_mount_h.
(open_shared_file_map): Eliminate.
* shared_info.h (mount_info): Add a version field.
(shared_align_past): New macro for calculating location for shared memory
regions.
* sigproc.cc (init_child_info): Eliminate shared_h, console_h.
* spawn.cc (spawn_guts): Pass on cygwin_mount_h iff not a different user.
* syscalls.cc (system_info): New global holding system memory defaults.
(getpagesize): Use system_info.
* uinfo.cc (internal_getlogin): Only fill in user name if nonexistent.
* winsup.h: Declare system_info.
* passwd.cc (read_etc_passwd): Use cygheap->user.name () rather than retrieving
the name again.
2001-01-28 05:51:15 +00:00
Christopher Faylor a7cde2b98a * autoload.cc (LoadDLLinitfunc): Remove debugging statement.
* exceptions.cc (sig_handle_tty_stop): Move setting of PID_STOPPED to earlier
in interrupt.
((interrupt_setup): i.e., here.
(sig_handle): Don't queue multiple SIGSTOPS.
* fhandler.h (bg_check_types): Enumerate return value of bg_check for clarity.
* signal.cc (kill_pgrp): Minor cleanup.
* fhandler_termios.cc (fhandler_termios::bg_check): Use enumerated type for
function return.  Don't raise signal if a signal is already queued.
* fhandler_console.cc (fhandler_console::read): Use enumerated return type for
bg_check.
* select.cc: Ditto, throughout.
* read.cc: Ditto, throughout.
* termios.cc: Ditto, throughout.
(_read): YA interrupt detect simplification.
* wait.cc (wait4): Ditto.
2001-01-17 14:57:09 +00:00
Christopher Faylor c3d62298ba * debug.h: Add regparm attributes to some functions.
* signal.cc (sigaction): Don't treat SIGCONT specially.
* exceptions.cc (interrupt_setup): Save sa_flags of interrupted signal for
later use.
(sig_handler): Default any stopping signal to SIGSTOP.
(call_signal_handler): New function.
(sigdelayed0): New function.
* sigproc.cc (sigproc_init): Initialize SIGSTOP sigaction for special behavior.
* sigproc.h: Define call_signal_handler.
* syscalls.cc (_read): Allow restartable signal behavior.
2001-01-12 05:38:25 +00:00
Christopher Faylor 7416e1d2f6 * sigproc.cc (wait_sig): Allow SIGCONT when stopped. 2001-01-10 13:53:38 +00:00
Christopher Faylor 077ec4cb37 * pinfo.cc (codepage_init): Move function.
* 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.
2001-01-08 04:02:02 +00:00
Christopher Faylor 0d675c5d7f * sigproc.cc (wait_sig): Remove unneeded for loop iteration.
* exceptions.cc (interrupt_setup): Don't set signal mask here or races occur
with main thread.  Set it in sigdelayed instead.
(sigreturn): Reflect change in stack order of ebp and flags.
(sigdelayed): Set stack frame correctly.  Call set_process_mask here with flags
for last trapped signal.
(signal_dispatch): Add newmask.
* sigproc.cc (wait_sig): Eliminate ill-considered attempt to halt looping
signal processors.
2000-11-16 05:16:59 +00:00
Corinna Vinschen 66c161baac * cygheap.h: Move `token' and `impersonated' from class _pinfo
to class cygheap_user.
        * pinfo.h: Ditto.
        * fork.cc (fork_child): Change usage of `token' and `impersonated'
        accordingly.
        (fork_parent): Ditto.
        * security.cc (cygwin_set_impersonation_token): Ditto.
        * sigproc.cc (proc_subproc): Ditto.
        * spawn.cc (spawn_guts): Ditto.
        * syscalls.cc (seteuid): Ditto.
        * uinfo.cc (uinfo_init): Ditto.
2000-11-15 21:04:02 +00:00
Christopher Faylor 84aeff4126 Throughout use myself->ppid_handle rather than parent_alive.
* child_info.h (child_info): Eliminate parent_alive.
* dcrt0.cc (dll_crt0_1): Call fork_init for debugging pid creation.
* fork.cc (fork_child): Reflect change to fixup_mmaps_after_fork arguments.
(slow_pid_reuse): New function to grab last 'n' pids to prevent pid reuse.
(fork_parent): Move last_fork_proc into slow_pid_reuse.  Handle fork_pids
debugging.  Eliminate unnecessary call to set_child_mmap_ptr.
(fork_init): New debugging function.
* mmap.cc (fixup_mmaps_after_fork): Renamed from recreate_mmaps_after_fork.
Rely on copied data after a fork.
(set_child_mmap_ptr): Eliminate.
* pinfo.h (_pinfo): Eliminate parent_alive, mmap_ptr and reflect above changes.
* spawn.cc (spawn_guts): Eliminate vestiges of "old way" of sending new hProc
to parent process.
2000-11-15 06:27:48 +00:00
Corinna Vinschen 1f0f8e127c * cygheap.cc (cygheap_root::cygheap_root): New function.
(cygheap_root::~cygheap_root): Ditto.
        (cygheap_root::operator=): Ditto.
        (cygheap_user::~cygheap_user): Ditto.
        (cygheap_user::set_name): Ditto.
        (cygheap_user::set_logsrv): Ditto.
        (cygheap_user::set_domain): Ditto.
        (cygheap_user::set_sid): Ditto.
        * cygheap.h (cygheap_root): New class.
        (cygheap_user): Ditto.
        (init_cygheap): Change type of `root' member to cygheap_root.
        Add `user' member.
        * dir.cc (opendir): Use new `cygheap_root' class.
        * dcrt0.cc (dll_crt0_1): Use new `cygheap_user' class.
        * fork.cc (fork_parent): Ditto.
        * grp.cc (getgroups): Ditto.
        * passwd.cc (search_for): Ditto.
        * path.cc: Use new `cygheap_root' class throughout.
        * pinfo.h (_pinfo): Remove `use_psid'. Move `username', `psid',
        `logsrv', `domain', `orig_{uid,gid}' and `real_{uid,gid}' to
        cygheap_user class.
        * security.cc: Use new `cygheap_user' class throughout.
        * shared.cc (sec_user): Ditto.
        * sigproc.cc (proc_subproc): Remove copy statements for user
        related information moved to `cygheap_user' class.
        * spawn.cc (spawn_guts): Invalidate current chroot settings
        when creating Windows environment. Use new `cygheap_user' class.
        * syscalls.cc: Use new `cygheap_user' class throughout.
        * uinfo.cc: Ditto.
        * uinfo.cc (internal_getlogin): Change parameters to reflect the
        move of user information to cygheap.
2000-11-15 00:13:09 +00:00
Christopher Faylor a4785603b8 * cygheap.h (init_cygheap): New struct holding values that live in the Cygwin
heap.
* child_info.h (child_info): Change pointer type of cygheap to init_cygheap.
* cygheap.cc (init_cheap): Point cygheap_max after contents of cygheap.  Move
some stuff into cygheap.h.
* dir.cc (opendir): Change to use root and rootlen in cygheap rather than in
myself.
(mkdir): Change to use umask in cygheap rather than in myself.
* path.cc: Ditto, throughout.
* syscalls.cc (_open): Ditto.  Change to use umask in cygheap rather than in
myself.
(chroot): Change to allocate root dir on the cygwin heap.
(umask): Change to use umask in cygheap rather than in myself.
(cygwin_bind): Ditto.
* sigproc.cc (proc_subproc): Don't copy umask or root stuff as this happens
automatically now.
* pinfo.h (_pinfo): Migrate stuff out of here and into init_cheap.
* dcrt0.cc (dll_crt0_1): Call cygheap_init later in startup for first cygwin
process.
2000-11-14 05:53:32 +00:00
Christopher Faylor c0188ae7cb * dcrt0.cc (sigthread::init): Reinstitute sigthread lock as a critical section.
(dll_crt0_1): Move sigthread lock initialization to earlier in startup.
* exceptions.cc (interrupt_on_return): Remove previous kludgy attempt to detect
an invalid frame.
(call_handler): Eliminate inner for loop.  Grab signal critical section lock
where appropriate.
* sigproc.cc (proc_subproc): Restore uid setting.
* sigproc.h (sigthread): Reinstitute sigthread lock as a critical section.
(sigframe): Grab the sigthread lock before clearing frame to avoid having the
signal thread use an invalid frame.
2000-11-06 23:12:05 +00:00
Christopher Faylor dd11f11fae * child_info.h (child_info): Add pppid_handle for closing the parent's of the
parent handle.
* dcrt0.cc (_dll_crt0): Close parent's parent handle when spawned or forked.
* debug.cc (add_handle): Correct erroneous reference to handle structure when
printing warning.
* exceptions.cc (interrupt_now): Always return 1.
(interrupt_on_return): Accept a sigthread argument.  Check to see if this
argument has been trashed prior to setting up the stack return.
(call_handler): Add a loop around attempts to dispatch signals to detect case
where interrupt_on_return fails.
(_sigdelayed): Set up a temporary frame pointer prior to calling stuff that
could trigger an interrupt or the stack walking code will be very confused.
* fork.cc (fork_parent): Move a lot of the setup of the child process into
proc_subproc.
* spawn.cc (spawn_guts): Ditto.  Use ppid_handle to contact logical parent when
reparenting.
* pinfo.h (_pinfo): Remember the logical handle of the parent process.
* sigproc.cc (proc_subproc): Record most stuff necessary for the _pinfo
structure that is inferrable from myself when adding children.
(wait_sig): Always set 'pending_signals' flag when about to kick off the signal
scanning loop.  Reset it only if there are no pending signals.
2000-11-06 06:36:32 +00:00
Christopher Faylor 95101076e5 * pinfo (wait_subproc): Son of neverending debug tweaking. 2000-11-05 18:47:28 +00:00
Christopher Faylor 914f7bf565 * pinfo (wait_subproc): Neverending debug tweaking. 2000-11-05 16:47:00 +00:00
Christopher Faylor 7edb836a68 * exceptions.cc (handle_sigsuspend): Record frame here for signalling.
(set_process_mask): Ditto.
2000-11-05 03:08:39 +00:00
Christopher Faylor 1ae469adf4 * sigproc.cc (wait_subproc): Still more debugging cleanup. 2000-11-04 19:25:55 +00:00
Christopher Faylor e46db834d9 * pinfo.cc (EnumProcessesNT): Avoid 0 pids.
(EnumProcesses9x): Ditto.
* sigproc.cc (remove_childe): Eliminate.
(proc_subproc): Move remove_child stuff here.
(wait_subproc): Synchronize with proc_subproc when error occurs.  Add more
debugging info.
* sigproc.h (procstuff): Add an entry.
* spawn.cc (spawn_guts): Add sigframe here.
2000-11-04 05:54:57 +00:00
Christopher Faylor c2445f2abc * sigproc.cc (wait_subproc): Refine debug output. 2000-11-04 01:08:23 +00:00
Christopher Faylor bb5d559a73 * pinfo.cc (pinfo::init): Reverse order of setting status and pid info in an
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.
2000-11-03 04:27:03 +00:00
Christopher Faylor 018a91fa2e * sigproc.cc (wait_sig): Add braces to avoid confusion. 2000-10-27 15:38:32 +00:00
Christopher Faylor 06571ff689 * sigproc.cc (proc_subproc): Don't send a false positive if WNOHANG and no
processes are available for waiting.
2000-10-23 20:50:36 +00:00
Christopher Faylor f80cdaeecb * sigproc.cc (proc_subproc): Correctly handle flags for WNOHANG case. 2000-10-23 16:50:21 +00:00
Christopher Faylor ac944e37d0 * exceptions.cc (call_handler): Make signal pending if sigsave.sig is still
active.
* syscalls.cc (_read): Don't clear errno.
* sigproc.cc (wait_sig): Don't scan the waiting process list after a SIGCHLD if
there are no zombies to reap.
* winsup.h: Use __builtin_strcmp.
* environ.cc (posify): Don't initialize len unless it is required
(from DJ Delorie <dj@redhat.com>).
2000-10-18 04:53:37 +00:00
Christopher Faylor 3f7bd53115 * sigproc.cc (proc_subproc): Remove unneeded test for correct process in
PROC_ADDCHILD.  Return 0 when terminated child has just been reparented.
(wait_subproc): Only send SIGCHLD when proc_subproc returns != 0.
* strace.cc (strace::vsprntf): Only strip .exe extension from program name.
2000-10-17 18:55:58 +00:00
Christopher Faylor 92e1969051 * debug.cc (add_handle): Issue warning on attempts to add the same handle more
than once.
* fhandler_tty.cc (fhandler_tty_slave::open): Protect some handles.
(fhandler_tty_common::close): Use proper name when closing handles.
(fhandler_pty_master::close): Don't close to_slave or from_slave since they've
already been closed earlier in the function.
* sigproc.cc (proc_subproc): Don't protect vchild->hProcess.  Expect that the
caller will do this, instead.
* tty.cc (tty_list::terminate): Use proper name when closing handles.
(tty::make_pipes): Protect some handles.
2000-10-17 01:42:04 +00:00
Christopher Faylor 166b2571ce * Makefile.in: Remove some obsolete stuff.
* dcrt0.cc (dll_crt0_1): Call signal_fixup_after_exec where appropriate.  Set
myself->uid from parent version.  Just use ThreadItem Init method.  Close or
store hexec_proc as appropriate.
(_dll_crt0): Store user_data->forkee here so that proper tests can be made
subsequently.
(do_exit): Remove hExeced stuff.
* environ.cc (environ_init): Accept environ count as well as environ pointer.
* environ.h: Reflect above change.
* pinfo.cc (pinfo_init): Ditto.  Accept environ count.
(fixup_in_spawned_child): Remove.
* spawn.cc (spawn_guts): Move signal code to dll_crt0_1.  Don't suspend execing
process since it is no longer necessary.  Store envc.
* exceptions.cc (signal_fixup_after_exec): New function.
(call_handler): Remove hExeced test.
* child_info.h (cygheap_exec_info): Store envc as well as envp.
(child_info_spawn): Store hexec_proc so that it can be closed in child.
* path.cc (normalize_posix_path): Avoid intermediate use of temporary cwd buf.
(normalize_win32_path): Ditto.
(cwdstuff::get_initial): Always set lock.
* sigproc.h: Remove hExeced.
* strace.cc (strace::vsprntf): Modify to 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.
2000-10-16 23:55:58 +00:00
Christopher Faylor 1dc16fc74b * exceptions.cc (set_console_handler): Don't allocate
console_handler_thread_waiter.  It is obsolete.
(ctrl_c_handler): Don't use console_handler_thread_waiter.
* path.cc (hash_path_name): Fix handling of relative names.  Make case
insensitive.
* path.h (suffix_info): Use initializers.
* pinfo.h (_pinfo): Avoid initializers for null case.
* resource.cc (fill_rusage): Zero rest of rusage structure.
* 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.
2000-10-15 01:37:07 +00:00
Christopher Faylor aece55b982 * 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.
2000-10-14 05:52:38 +00:00
Christopher Faylor 1ec4f618fe * 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.
2000-10-12 22:15:47 +00:00
Christopher Faylor 164a681ca5 * 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.
2000-10-09 02:53:44 +00:00
Christopher Faylor a5855dc341 * 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.
2000-10-05 04:53:17 +00:00
Christopher Faylor f9f2ed0e2b * exceptions.cc (handle_exceptions): Just "core dump" if SIGSEGV in signal
thread.
* external.cc (fillout_pinfo): Fix compiler warning.
* sigproc.h: Eliminate special asm naming for sig_dispatch_pending.
* sigproc.cc (sig_send): Remove debugging statements.
2000-09-16 02:36:11 +00:00
Christopher Faylor 3b0d65eab9 * sigproc.h (sigframe::set): Eliminate second argument. Default bp to current
frame pointer rather than using this within the function, which is unstable
when this method is not inlined.
* net.cc: Eliminate use of second argument to sigframe.set throughout.
* select.cc (cygwin_select): Ditto.
* sigproc.cc (sig_send): Ditto.
2000-09-08 03:12:13 +00:00
Christopher Faylor f0338f545d Break out more header info into separate files. Use appropriate header files
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.
2000-09-08 02:56:55 +00:00
Christopher Faylor 29ac7f89e3 Split out tty and shared_info stuff into their own headers and use throughout.
Include sys/termios.h for files which need it.
* tty.h: New file.
* shared_info.h: New file.
* fhandler.h: Move inline methods that rely on tty stuff to
fhandler_console.cc.
* fhandler_tty.cc (fhandler_pty_master::process_slave_output): Set
output_done_event immediately after reading data to speed up tty output
processing.
(process_output): Set write_error to errno or zero.
(fhandler_tty_slave::write): Check previous write error prior to writing to
slave end of pipe.  This allows tty output to be slightly less synchronous.
* fhandler_console.cc (fhandler_console::tcsetpgrp): Moved here from
fhandler.h.
(fhandler_console::set_input_state): Ditto.
2000-09-07 16:23:51 +00:00
Christopher Faylor 8dec7b0379 * sigproc.cc: Add include file for proper definitions.
* spawn.cc: Ditto.
* winsup.h: Define cfree to avoid newlib pollution.
2000-09-06 21:03:10 +00:00
Christopher Faylor 0ef7862533 * sigproc.cc (mychild): New function.
(proc_subproc): Use mychild() to determine if a specific pid is valid for
wait()ing.
2000-09-02 01:19:58 +00:00
Christopher Faylor 837528aa51 * sigproc.cc (sigproc_init): Create wait_sig_inited without auto-reset to avoid
potential races.
(init_child_info): Avoid unneeded test.
2000-09-01 21:04:34 +00:00
Christopher Faylor 488c7683e3 * sigproc.cc (proc_info): Rename proc_exists which takes a pid to "pid_exists".
* shared.h: Split out "child_info" stuff into a new header file and use where
necessary.  Declare pid_exists.
* child_info.h: New file.
2000-09-01 20:54:22 +00:00
Christopher Faylor fde520bf6c * pinfo.h (pinfo): Un-inline release.
* pinfo.cc (pinfo::release): Move here from pinfo.h.
* sigproc.cc (proc_terminate): Remove bogus 'pinfo child' which caused strange
destruction of random regions of memory when destructor was invoked.
2000-08-26 03:48:37 +00:00
Christopher Faylor 3c2c374555 * dcrt0.cc (dll_crt0_1): Move set_os_type.
(_dll_crt0): To here.
(cygwin_dll_init): And here.
* external.cc (fillout_pinfo): Use more foolproof method for scanning for pids.
* pinfo.cc (set_myself): Eliminate myself_identity.init.
* sigproc.cc (wait_sig): Do it here instead to reduce the amount of time where
there could potentially be two processes with the same pid.
* spawn.cc (spawn_guts): Eliminate duplicate initialization.
* include/sys/cygwin.h: Mark unused PID_* elements.
2000-08-26 01:36:20 +00:00
Christopher Faylor 239b06b864 * external.cc (cygwin_internal): Add CW_INIT_EXCEPTIONS to allow cygwin
exception handling on threads not created by cygwin.
* sigproc.cc (proc_terminate): Don't release pinfo structs since we are
exiting.
* include/sys/cygwin.h: Add CW_INIT_EXCEPTIONS.
2000-08-25 02:27:42 +00:00
Christopher Faylor bccd5e0d85 * winsup.h: Eliminate inclusion of most of the cygwin .h files. Use .h files
only in sources which require them.
* Makefile.in: Generate dependencies with -MD option.
2000-08-22 05:10:20 +00:00
Christopher Faylor 9e2baf8dfa * cygerrno.h: New file. Use this throughout whenever errno manipulation is
required.
* errno.cc: Use DWORD to hold Windows errors.
(geterrno_from_win_error): New function.
(seterrno_from_win_error): Use geterrno_from_win_error to convert supplied
windows error (suggested by Corinna Vinschen).
* path.cc (symlink_info): Add error element.
* path.cc (path_conv::check): Remove errno setting.  Use new symlink_info errno
element to set path_conv error, where appropriate.
(symlink_info::check): Set error element rather than attempting to manipulate
errno.  Add more checks for trailing / and /..  even though they are currently
useless.  Avoid setting EINVAL.
* path.cc (normalize_posix_path): Correct check for trailing /.
2000-08-22 03:58:47 +00:00
Christopher Faylor e2ebe11776 * winsup.h: Split out dtable definitions into separate header file.
* dtable.h: New file.
* sigproc.h: Eliminate pinfo.h usage here.  Use it in source files that need
it.
2000-08-12 05:35:42 +00:00
DJ Delorie 4c8d72ded5 * winsup.h: take out protections of environ, errno, allow C use
* *.cc: put winsup.h before other headers (for __INSIDE_CYGWIN__);
use cur_environ() instead of just environ
* times.cc: remove import protections
* glob.c: add winsup.h
* localtime.c: ditto
* smallprint.c: ditto
* Makefile.in: don't __INSIDE_CYGWIN__ as it messes up profiling.
2000-08-02 16:28:18 +00:00
Christopher Faylor a5a965ff62 * strace.h: Add kludgy workarounds to avoid using deprecated methods for
variable argument macros when possible.
* sigproc.cc: Throughout, use sigproc_printf rather than sip_printf.
* strace.cc (strace::prntf): Remove 'active' check, since callers are supposed
to ensure this.
(__system_printf): Remove.  Subsumed by strace::prntf.
* winsup.h: Define "NEW_MACRO_VARARGS" to indicate when to use new macro
varargs capability.
2000-08-02 03:42:31 +00:00
Christopher Faylor 84c7d40932 * include/cygwin/version.h: Bump DLL minor version number to 5 due to all of
the changes below.  Redefine process structure to avoid a fixed size table.
Redefine pinfo/_pinfo classes.  Use these throughout.
* dcrt0.cc (dll_crt0_1): Accomodate set_myself argument change.
(__api_fatal): Accomodate _pinfo::record_death argument change.
* exceptions.cc (really_exit): Ditto.
(sig_handle_tty_stop): Use pinfo constructor to access process info.
(events_init): Don't create pinfo_mutex since it is no longer required.
* external.cc (fillout_pinfo): Use winpids class to iterate over all system
pids.
(cygwin_internal): lock_pinfo_for_update and unlock_pinfo are now noops.
* fhandler_termios.cc (fhandler_termios::set_ctty): Use pinfo constructor to
access process info.
* fork.cc (fork): Reorganize to initialize child info after the child has
started since that is when we know the child's winpid, which is necessary to
allocate the pinfo shared memory.
* mmap.cc (recreate_mmaps_after_fork): Change arg type to _pinfo.
* pinfo.cc: Rename pinfo methods to _pinfo throughout.  Eliminate pinfo_list
stuff.
(set_myself): Accept a pid argument now.  Call pinfo initializer to initialize
myself.  Detect when this is an "execed" process and create an "indirect" pid
block.
(pinfo_init): Accomodate set_myself arg change.
(procinfo): Remove.
(pinfo::lock_pinfo): Remove.
(pinfo::unlock_pinfo): Remove.
(pinfo::init): New method.  Allocates shared memory space for process pinfo
structure.
(pinfo::record_death): Don't call locking functions.
(cygwin_winpid_to_pid): Simplify by using new pinfo constructor.
(EnumProcessesW95): New function for iterating over processes on Windows 95.
(winpids::winpids): New constructor for winpids class.  Sets up a list of
process ids.
(enum_init): Initialize w95/wnt pid enumerators.
* shared.cc (shared-info::initialize): Remove pid initialization.
* shared.h: Move pinfo stuff into pinfo.h.
(class shared_info): Remove pinfo_list element.
* signal.cc (kill_worker): Use pinfo constructor to access process info.
(kill_pgrp): Ditto.  Use winpids methods to access list of processes.
* sigproc.cc: Throughout, modify to use _pinfo where appropriate.
(proc_exists (pid_t)): New function.  Determines if a process exists based on
the pid.
(proc_exists (_pinfo *p): Use new proc_exists function above.
(proc_subproc): Copy pinfo stuff around rather than _pinfo pointers.  Try to be
careful about releasing shared memory when we don't need it anymore.  Remove
pinfo locks.
(remove_zombies): Remove pinfo memory when zombie is going away.
* sigproc.h: Reflect _pinfo/pinfo changes in sigproc.cc.
* spawn.cc (spawn_guts): Eliminate pinfo *child argument.  Reorganize to only
initialize child pinfo after process has been started and we know the windows
pid.
(_spawnve): Reflect spawn_guts changes.
* syscalls.cc (setpgid): Use pinfo constructor to access process info.
(getpgid): Ditto.
(internal_getlogin): Use _pinfo.
* winsup.h: Eliminate pinfo_mutex.  Eliminate spawn_guts declaration since it
is static now.  Reflect set_myself argument change.
* include/sys/cygwin.h: Add some PID_* enums to accomodate new pinfo stuff.
* include/cygwin/version.h: Update minor version for cygdrive changes below.
2000-07-29 16:24:59 +00:00
Christopher Faylor b4e59f5f14 * acconfig.h: Add support for NEWVFORK.
* config.h.in: Ditto.
* configure.in: Add --enable-vfork option.
* configure: Regenerate.
* dcrt0.cc (quoted): Detect and fix up quoted backslashes.
* sigproc.cc (proc_subproc): Correctly name handle of newly added child process
to avoid erroneous debugging messages about closing the wrong handle.
2000-07-16 17:38:41 +00:00
Christopher Faylor e1e61b9ae5 * sigproc.h (sigframe::set): Accept a default frame pointer.
* sigproc.cc (sig_send): Use passed in frame pointer, if appropriate.
2000-05-26 06:24:58 +00:00
Christopher Faylor 12e659efa8 * dcrt0.cc (dll_crt0_1): Initialize mainthread stuff here before anything needs
it.
* sigproc.cc (sigproc_init): Move mainthread initialization out of here.
* sigproc.h (sigthread): Add init() method.
(sigframe): Don't try to initialize muto.
* sync.cc: Undef WaitForSingleObject to avoid recursion.
2000-05-18 03:20:01 +00:00
Christopher Faylor 6201d15e3c * path.cc (mount_info::cygdrive_posix_path): Don't add trailing slash if
referring to something like c:\.
* dcrt0.cc (dll_crt0_1): Move uinfo initialization prior to sig_send
initialization to give signal thread a chance to finish.
* debug.cc (WFSO): Move to sigproc.cc
(WFMO): Ditto.
* exceptions.cc (interruptible): Allocate slightly more space for directory
just for paranoia's sake.
(call_handler): Eliminate nonmain argument.  Determine if main thread has set a
frame pointer and use it if so.
(sig_handle): Eliminate nonmain argument.
* net.cc: Record frame information in appropriate routines throughout.
* select.cc (select): Ditto.
* sigproc.cc: Use sigthread structure to record mainthread id throughout.
(sig_send): Record frame information for signal handler.
(wait_sig): Reflect argument change in sig_handle.
(WFSO): Move here and record frame information for signal handler.
(WFMO): Ditto.
* sigproc.h: Implement new "sigthread" class.  Implement "sigframe" class for
manipulating signal frame info.
* thread.cc (__pthread_kill): Use standard _kill() function rather than calling
sig_send directly.
* winsup.h: Eliminate ebp element from signal_dispatch class.
2000-05-17 05:49:51 +00:00
Christopher Faylor 4f7831c1f5 * environ.cc: Add TMPDIR to the list of environment variables which are
converted to POSIX format.
* sigproc.cc (proc_terminate): Don't attempt to delete when a muto pointer is
NULL.
2000-03-25 05:25:27 +00:00
Christopher Faylor 332600d80c Pipe changes throughout suggested by Eric Fifer <EFifer@sanwaint.com>
* debug.cc (threadname_init): Pass name of lock as arg 2 of new_muto.
* malloc.cc (malloc_init): Ditto.
* sigproc.cc (sigproc_init): Ditto.
* exceptions.cc (events_init): Ditto.
(call_handler): Eliminate special case for hExeced.  Report locked thread in
debugging output.
* fhandler.cc (fhandker_pipe::fhandler_pipe): Propagate device type to base
class.
* fhandler.h (fhandler_pipe): Ditto.
* hinfo.cc (hinfo::build_fhandler): Pass specific type of pipe to constructor.
* spawn.cc (spawn_guts): Eliminate dependency on signal when waiting for
subprocess.
* strace.cc: Remove obsolete #ifdef.
* sync.cc (muto::muto): Save the name of the muto.
(muto:~muto): Also release the muto.
* sync.h: Add a muto name field.
* select.cc (peek_pipe): Avoid doing a PeekNamedPipe on the write end of a
pipe.
2000-03-15 04:49:36 +00:00
Christopher Faylor 774ea16211 * fhandler_console.cc (fhandler_console::read): Don't even think about breaking
on interrupt if executing in a "cygwin" thread.
* fhandler_tty.cc (fhandler_pty_master::process_slave_output): Streamline,
simplify code.
* sigproc.cc (sig_send): Remove debugging statement.
2000-03-12 04:44:37 +00:00
Christopher Faylor 1e8b88023c * sigproc.cc: Set wait_sig priority to normal. 2000-03-11 15:51:46 +00:00
Christopher Faylor 7fecc3e4d6 * sigproc.cc (wait_sig): Add addtional debugging output. 2000-03-10 18:04:20 +00:00
Christopher Faylor af1dc7ccea * environ.cc: Eliminate oldstack CYGWIN option.
* exceptions.cc (sfta): Eliminate obsolete function.
(sgmb): Eliminate obsolete function.
(class stack_info): Remove MS method for walking the stack.
(stack_info::init): Just initialize required fields.
(stack_info::brute_force): Rename to stack_info::walk.
(handle_exceptions): Pass derived frame pointer to sig_send.
(interrupt_setup): Clear saved frame pointer here.
(interrupt_on_return): thestack is no longer a pointer.
(call_handler): Accept a flag to indicate when a signal was sent from other
than the main thread.  Use saved frame pointer for determining where to place
signal handler call.
(sig_handle): Accept "nonmain" argument.  Pass it to call_handler.
* fhandler_tty.cc (fhandler_tty_common::__acquire_output_mutex): Change
debugging output slightly.
* (fhandler_tty_common::__release_output_mutex): Ditto.
(fhandler_tty_slave::read): Fix a comment, remove a goto.
* sigproc.cc (sig_send): Accept an optional frame pointer argument for use when
suspending the main process.  sigcomplete_main is an autoreset event now.  Save
frame pointer for non-main operation.
(wait_sig): Make sigcomplete_main an autoreset event.  Eliminate NOSIGQUEUE.
Pass rc to sig_handle to signify if this was a nonmain process.
* sigproc.h: Reflect change to sig_send argument.
* syscalls.cc (swab): Eliminate swab function since it is now available in
newlib.
* winsup.h (signal_dispatch): Change CONTEXT cx to DWORD ebp.
2000-03-09 21:04:05 +00:00
Christopher Faylor cba95ef1c8 * sigproc.cc (sig_send): Eliminate sync_sig_send synchronization since it
didn't seem to affect the "bash hangs" problem.
2000-03-07 18:32:40 +00:00
Christopher Faylor 5abc9b830b Throughout use strace class in place of individual functions and variables.
* cygwin.din: Eliminate _strace_wm.
* sigproc.cc (wait_sig): Temporarily add more debugging output.
* include/cygwin/version.h: Bump minor api to reflect export change.
2000-03-07 05:33:09 +00:00
Christopher Faylor 68997e887d * exceptions.cc (call_handler): Streamline to use only one call to
ResumeThread.
* sigproc.cc (sig_send): Use a muto around the ReleaseSemaphore.  Remove
priority setting since it didn't solve anything.
2000-03-05 06:34:55 +00:00
Christopher Faylor b528f63495 * sigproc.cc (sig_send): Temporarily set priority to highest while sending a
signal.
2000-02-29 05:47:17 +00:00
Christopher Faylor 716254905c * pinfo.cc (set_myself): Add build date to strace output.
* sigproc.cc (proc_subproc): Only clear wait event when not attending to a
signal.
2000-02-28 16:25:34 +00:00
Christopher Faylor d542443ea4 * dcrt0.cc (set_os_type): Record OS name string.
(getprogname): Eliminate obsolete function.
(dll_crt0_1): Move initial strace initialization output to set_myself.
* exceptions.cc (interruptible): Add debugging output.
(interrupt_setup): New function.
(interrupt_now): Use interrupt_setup to set up common interrupt handler stuff.
(interrupt_on_return): Ditto.
(call_handler): Move signal_arrived arm and clear threads to region where
signalled thread is suspended or suffer races.
* pinfo.cc (set_myself): Output interesting information when strace is first
initialized.  Initialize progname here.
* sigproc.cc (sig_dispatch_pending): Modify to ensure that flush signal are
sent synchronously.
* strace.cc (strace_vsprintf): Move code into strace program.
* uname.cc (uname): Use 'osname' global to construct cygwin name + Windows type
+ version.
2000-02-28 05:05:33 +00:00
Christopher Faylor 8656ee07ef * exceptions.cc (interruptible): Make a little more structured.
(call_handler): Allow signals to be sent even if signalled thread is stopped.
Change order of signal_arrived arming/waiting threads clearing to eliminate a
race.
(reset_signal_arrived): New helper function.
* malloc.cc (malloc_init): Use mutos so that signal handler can keep track of
who owns the lock.
(__malloc_lock): Ditto.
(__malloc_unlock): Ditto.
* sync.h (new_muto): Actually use a muto for the "buffer".
* Makefile.in: Fix a dependency.
2000-02-26 01:11:54 +00:00
Christopher Faylor d3bda1df95 * exceptions.cc (call_handler): Use new muto linked list to look for all
potential mutos owned by suspended thread.  Clear waiting threads while thread
is stopped.
(proc_subproc): Clarify debugging output.
* sync.h (class muto): Add 'next' field.
(new_muto): Keep linked list alive.
2000-02-24 19:54:01 +00:00
Christopher Faylor 9aa07a8f60 Fix final round of gcc warnings relating to unused parameters.
* debug.cc (iscygthread): New function.
* debug.h: Declare it.
* exceptions.cc (set_process_mask): Flush pending signals.
(handle_sigsuspend): No need to flush pending signals.
(call_handler): Refine previous tests of muto ownership.  Only clear wait()'s
when we have definitely responded to a signal.
* fhandler_console.cc (fhandler_console::read): Don't set EINTR if executing in
a "cygwin" thread.
* sigproc.cc (proc_subproc): Use second argument to control whether CLEARWAIT
actually sets "signalled" flag.
* sync.h (muto): Add 'unstable' method.
2000-02-24 06:45:32 +00:00
Christopher Faylor f02f1f1444 * exceptions.cc (interruptible): Change method for determining if something is
interruptible.
(call_handler): Avoid suspending a thread if it owns a mutex.  Only set
signal_arrived if the thread was actually interrupted.
(events_init): Initialize module information needed by interruptible().
(sigdelayed): Don't call sig_dispatch_pending since it could screw up
* init.cc (dll_entry): Record module handle of main for use by interruptible().
(proc_subproc): Reorganize handling of terminated child so that the bulk of the
processing comes from the signal thread.
(wait_sig): Force processing of waiting threads if SIGCHLD is not processed.
* sync.cc (muto::release): Set tid == 0 after lock is released or signal
processor will be confused.
2000-02-24 02:49:44 +00:00
Christopher Faylor 01cf5d0f5d Respond to more g++ warnings relating to initializing structures. 2000-02-23 04:07:13 +00:00
Christopher Faylor 9cec3d45aa Respond to a multitude of g++ warnings. 2000-02-21 05:20:38 +00:00
Christopher Faylor 1fd5e000ac import winsup-2000-02-17 snapshot 2000-02-17 19:38:33 +00:00