Commit Graph

110 Commits

Author SHA1 Message Date
Christopher Faylor 083abe5428 * sync.h (new_muto): Just accept an argument which denotes the name of the
muto.  Use this argument to construct static storage.
* cygheap.cc (cygheap_init): Reflect above change.
* exceptions.cc (events_init): Ditto.
* malloc.cc (malloc_init): Ditto.
* path.cc (cwdstuff::init): Ditto.
* cygheap.h (cwdstuff): Change name of lock element to make it less generic.
* path.cc (cwdstuff::get_hash): Ditto.
(cwdstuff::get_initial): Ditto.
(cwdstuff::set): Ditto.
(cwdstuff::get): Ditto.
* sigproc.cc (proc_subproc): Ditto.
* debug.cc (lock_debug): Change to method.  Use method rather than macro
throughout.
* tty.h (tty_min::kill_pgrp): Declare new method.
* fhandler_termios.cc (tty_min::kill_pgrp): New method.
(fhandler_termios::line_edit): Use new method for killing process.
* dcrt0.cc (do_exit): Ditto.
* dtable.cc (dtable::get_debugger_info): New method for inheriting dtable info
from a debugger.
* tty.cc (tty_init): Attempt to grab file handle info from parent debugger, if
appropriate.  # dtable.cc (dtable::stdio_init): Make this a method.
(dtable::init_std_file_from_handle): Don't set fd unless it's not open.
(dtable::build_fhandler_from_name): Move name setting to
dtable::build_fhandler.
(dtable::build_fhandler): Add win32 name parameter.
* dcrt0.cc (dll_crt0_1): Change to use dtable stdio_init.
* dtable.h (dtable): Reflect build_fhandler parameter change.
* mmap.cc (mmap_record::alloc_fh): Don't set name parameter in build_fhandler.
* net.cc (fdsock): Remove set_name call since it is now handled by
build_fhandler.
* sigproc.cc (proc_subproc): Release muto as early as possible.
2002-02-22 19:33:41 +00:00
Christopher Faylor cecb74ae47 * fork.cc (fork_parent): Use sec_user_nih to control process/thread
inheritance/permission.
* spawn.cc (spawn_guts): Ditto.
* security.cc (create_token): Initialize token so that it is not tested for
bogus value later.  Use sec_user to control process/thread creation.
* security.h (__sec_user): Rename declaration from sec_user.
(sec_user_nih): Declare here as inline function wrapper for __sec_user.
(sec_user): Ditto.
* sigproc.cc (czombies): Allocate a character array for zombies to avoid
constructor overhead
(extremely hackish, I know).
(cpchildren): Ditto.
(pchildren): New define.
(zombies): Ditto.
(getsem): Use sec_user_nih to control semaphore inheritance/permission.
2002-02-19 05:58:44 +00:00
Christopher Faylor 2bd22312df * times.cc (hires::prime): Restore thread priority on failure condition.
* uinfo.cc (uinfo_init): Use more robust method for determining if process was
invoked from a non-cygwin process.
* sync.h (muto::init): Eliminate "inheritance" parameter.
(new_muto): Reflect removal of parameter.
* sync.cc (muto::init): Ditto.
* cygheap.cc (cygheap_init): Ditto.
* debug.cc (threadname_init): Ditto.
* exceptions.cc (events_init): Ditto.
* malloc.cc (malloc_init): Ditto.
* path.cc (cwdstuff::init): Ditto.
* sigproc.cc (sigproc_init): Ditto.
* grp.cc (group_lock): Use different method for locking with static member.
(read_etc_group): REALLY ensure that read lock mutex is released.
* passwd.cc (passwd_lock): Use different method for locking with static member.
(read_etc_passwd): REALLY ensure that read lock mutex is released.
* shared.cc (sec_user): Correct reversed inheritance test.
2002-02-17 04:59:55 +00:00
Christopher Faylor 907dc7d0c9 * exceptions.cc (unused_sig_wrapper): Eliminate unused parameter to asm.
* external.cc (cygwin_internal): Change CW_STRACE_ON to CW_STRACE_TOGGLE.
* strace.cc (strace::hello): Toggle strace on and off.
* sync.cc (muto::init): Renamed from constructor.
* sync.h (muto::new): Delete.
(muto::delete): Ditto.
(new_muto): Simplify.  Use muto.init for nearly everything.
* uinfo.cc (uinfo_init): Avoid closing a NULL handle.
* include/sys/cygwin.h (cygwin_getinfo_types): Rename CW_STRACE_OFF to
CW_STRACE_TOGGLE.  Delete CW_STRACE_OFF.
* include/sys/strace.h (strace): Add "inited" field.
2002-02-14 21:20:06 +00:00
Christopher Faylor 494a66d9c5 * external.cc (cygwin_internal): Initialize various internal settings if
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.
2002-01-29 02:02:03 +00:00
Christopher Faylor 994fe87b6e * Makefile.in (new-cygwin1.dll): Just use -lsupc++ for link.
* sigproc.cc (proc_exists): Change existence criteria.
* sync.h (new_muto): Add volatile to definition to avoid gcc optimization
problems.
2002-01-19 18:15:23 +00:00
Christopher Faylor 33ad2bf9d1 Add copyright stuff 2002-01-13 20:03:03 +00:00
Christopher Faylor 06486d9e55 * exceptions.cc (sig_handle): Accept a second argument indicating whether the
signal came from this process or not.
* sigproc.h: Reflect sig_handle arg change.
* signal.cc (kill_pgrp): Add sigframe info.
(abort): New function.  Eliminates newlib function of same name.
* sigproc.cc (wait_sig): Pass "signal from this process" value as arg 2.
2002-01-11 02:24:06 +00:00
Christopher Faylor a2e12d0c37 * sigproc.cc (getsem): Clean up debugging output. 2002-01-07 22:18:36 +00:00
Christopher Faylor 4a08cbfefb * sigproc.cc (getsem): Set errno when unable to create own semaphore.
Reorganize to make clearer that error should only come from initial creation of
process semaphore.
2002-01-07 16:47:12 +00:00
Christopher Faylor aaf219f01e * cygmagic: Add define name to warning.
* dcrt0.cc (_dll_crt0): Check for changes in child_info size.
(multiple_cygwin_problem): Avoid "proc" errors when testing.  Just assume new
cygwin proc.
* shared_info.h (mount_info): Add 'cb' element for sanity checks.
(shared_info): Ditto.
* child_info.h (child_info): Add fhandler_union_size element for sanity
checking.
* shared.cc (open_shared): Detect shared region size mismatch between parent
and child.
(shared_info::initialize): Detect shared region size mismatch with expectation.
(memory_Init): Ditto.
* sigproc.cc (init_child_info): Correctly set cb in passed structure.
* shared.cc (open_shared):
2001-12-26 21:35:16 +00:00
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