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* * thread.h (pthread::static_cancel_self): Mark as noreturn.Christopher Faylor2011-05-041-1/+3
| | | | | | (pthread::cancel_self): Ditto. * thread.cc (pthread::cancel_self): Explicitly use pthread::exit to avoid a "function returns" error.
* * select.cc (cygwin_select): Make degenerate case cancelable.Corinna Vinschen2011-05-031-3/+3
| | | | | | | | | (select_stuff::destroy): New inline method to delete memory taken by select_stuff. (select_stuff::~select_stuff): Call destroy. (select_stuff::wait): Add case to allow canceling select. * select.h (select_stuff::destroy): Declare. * thread.cc: Mark poll, pselect and poll as cancelable.
* * cygwin.din (pthread_attr_getstack): Export.Yaakov Selkowitz2011-05-031-1/+70
| | | | | | | | | | | | | | | | | | | | | | | | | (pthread_attr_getstackaddr): Export. (pthread_getattr_np): Export. * ntdll.h (enum _THREAD_INFORMATION_CLASS): Add ThreadBasicInformation. (struct _THREAD_BASIC_INFORMATION): Define. (NtQueryInformationThread): Declare. * posix.sgml (std-susv4): Add pthread_attr_getstack. (std-gnu): Add pthread_getattr_np. (std-deprec): Add pthread_attr_getstackaddr. (std-notimpl): Remove pthread_attr_[gs]etstackaddr, as they were removed from SUSv4. * thread.cc (pthread_attr::pthread_attr): Initialize stackaddr. (pthread_attr_getstack): New function. (pthread_attr_getstackaddr): New function. (pthread_attr_setstacksize): Return EINVAL if passed size less than PTHREAD_STACK_MIN, as required by POSIX. (pthread_getattr_np): New function. * thread.h (class pthread_attr): Add stackaddr member. * include/pthread.h (pthread_attr_getstack): Declare. (pthread_attr_getstackaddr): Declare unconditionally. (pthread_attr_setstack): Declare inside false conditional for reference. (pthread_getattr_np): Declare. * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
* * thread.cc (cancelable_wait): Remove test for main thread.Corinna Vinschen2011-05-021-1/+1
| | | | * fhandler_fifo.cc (fhandler_fifo::open_nonserver): Ditto.
* * fhandler_windows.cc (fhandler_windows::read): UseCorinna Vinschen2011-05-011-0/+13
| | | | | | | | pthread::get_cancel_event to fetch thread's cancel event. * flock.cc (lf_setlock): Ditto. * posix_ipc.cc (ipc_cond_timedwait): Ditto. * thread.cc (pthread::get_cancel_event): New static method. * thread.h (pthread::get_cancel_event): Declare.
* * fcntl.cc (fcntl64): Call pthread_testcancel.Corinna Vinschen2011-04-301-80/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | * fhandler_socket.cc (fhandler_socket::connect): Ditto. (fhandler_socket::accept4): Ditto. (fhandler_socket::recvfrom): Ditto. (fhandler_socket::recvmsg): Ditto. (fhandler_socket::sendto): Ditto. (fhandler_socket::sendmsg): Ditto. * flock.cc (lf_setlock): Allow to cancel thread running blocking file lock. Try to make code more readable. (lockf): Call pthread_testcancel. * mmap.cc (msync): Ditto. * posix_ipc.cc (ipc_cond_timedwait): Call pthread::static_cancel_self rather than pthread_testcancel. * select.cc (cygwin_select): Call pthread_testcancel. * syscalls.cc (pread): Ditto. (pwrite): Ditto. (readv): Ditto. (writev): Ditto. (open): Ditto. (close): Ditto. (fsync): Ditto. * termios.cc (tcdrain): Ditto. * thread.cc: Align list of cancellation points with above changes. Mark not-implemented functions, too. (cancelable_wait): Don't set unused object indices to WAIT_FAILED since that could result in wrong behaviour. Set them to the invalid value WAIT_TIMEOUT + 1 instead.
* * thread.h (class pthread): Add bool member canceled.Corinna Vinschen2011-04-301-3/+13
| | | | | | | | * thread.cc (pthread::pthread): Initialize canceled to false. (pthread::cancel): Set canceled before setting cancel_event. (pthread::testcancel): Check for canceled. Only wait for cancel_event if canceled is true. Explain why. (pthread::_fixup_after_fork): Set canceled to false.
* * thread.cc: Update comment listing cancellation points per POSIX.Corinna Vinschen2011-04-291-173/+301
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* * ntdll.h (IsEventSignalled): New inline function.Corinna Vinschen2011-04-291-1/+2
| | | | | | | | | | | * cygthread.cc (cygthread::terminate_thread): Use IsEventSignalled in place of WaitForSingleObject on event with 0 timeout. * fhandler.cc (fhandler_base_overlapped::has_ongoing_io): Ditto. * fhandler_fifo.cc (fhandler_fifo::open_nonserver): Ditto. (fhandler_fifo::wait): Ditto. * fhandler_termios.cc (fhandler_termios::bg_check): Ditto. * select.cc (verify_tty_slave): Ditto. * thread.cc (pthread::testcancel): Ditto.
* 2011-04-02 Jon TURNEY <jon.turney@dronecode.org.uk>Jon TURNEY2011-04-191-3/+6
| | | | | | * thread.cc (semaphore::init): We cannot reliably infer anything from the existing contents of sem, so merely warn rather than return EBUSY if it looks like we are reinitialising a semaphore.
* * thread.cc (pthread_setschedprio): New function.Yaakov Selkowitz2011-04-151-0/+11
| | | | | | | | * include/pthread.h (pthread_setschedprio): Declare. * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump. * cygwin.din (pthread_setschedprio): Export. * posix.sgml (std-notimpl) Move pthread_setschedprio from here... (std-susv4) ...to here.
* * cygwin.din (pthread_spin_destroy): Export.Corinna Vinschen2011-03-291-3/+127
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (pthread_spin_init): Export. (pthread_spin_lock): Export. (pthread_spin_trylock): Export. (pthread_spin_unlock): Export. * posix.sgml (std-susv4): Add pthread_spin_destroy, pthread_spin_init, pthread_spin_lock, pthread_spin_trylock, pthread_spin_unlock. (std-notimpl): Remove pthread_spin_[...]. * pthread.cc (pthread_spin_init): New function. * thread.cc (pthread_spinlock::is_good_object): New function. (pthread_mutex::pthread_mutex): Rearrange initializers to accommodate protected data in pthread_mutex. (pthread_spinlock::pthread_spinlock): New constructor. (pthread_spinlock::lock): New method. (pthread_spinlock::unlock): New method. (pthread_spinlock::init): New method. (pthread_spin_lock): New function. (pthread_spin_trylock): New function. (pthread_spin_unlock): New function. (pthread_spin_destroy): New function. * thread.h (PTHREAD_SPINLOCK_MAGIC): Define. (class pthread_mutex): Change access level of members shared with derived classes to protected. (pthread_mutex::set_shared): New protected method. (class pthread_spinlock): New class, derived class of pthread_mutex. * include/pthread.h (pthread_spin_destroy): Declare. (pthread_spin_init): Declare. (pthread_spin_lock): Declare. (pthread_spin_trylock): Declare. (pthread_spin_unlock): Declare. * include/cygwin/types.h (pthread_spinlock_t): New typedef. * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
* * thread.cc (semaphore::init, destroy, close): Standards conformanceCorinna Vinschen2011-03-291-7/+26
| | | | | | fix. On a failure, return -1 and set errno. * thread.h (semaphore::terminate): Save errno since semaphore::close() may now modify it.
* * thread.cc (valid_sched_parameters): Declare extern here.Corinna Vinschen2010-04-061-0/+2
| | | | (sched_set_thread_priority): Ditto.
* Throughout change all calls of low_priority_sleep (0) to yield ().Christopher Faylor2010-03-121-1/+1
| | | | | | | | | | * miscfuncs.cc (yield): Rename from low_priority_sleep. Remove all of the logic which called Sleep() and just use SwitchToThread. * miscfuncs.h (yield): Rename from low_priority_sleep. (SLEEP_0_STAY_LOW): Delete unused define. * shared.cc (memory_init): Move heap_init() call directly after shared memory initialization to more closely mimic long-standing program flow. * tty.cc (tty_list::terminate): Replace call to low_priority_sleep with Sleep.
* * cygtls.h (_cygtls::init_exception_handler): Eliminate argument.Christopher Faylor2010-02-261-3/+1
| | | | | | | | | | | | | | | | | | | | (_cygtls::andreas): Convert to a pointer. (san): Convert to a real class with methods. Use a linked list to keep track of previous handlers on the "stack". (myfault): Rewrite to use new san class rather than calling directly into _cygtls. * cygtls.cc (_cygtls::init_exception_handler): Just assume that we're always using the standard exception handler. (_cygtls::init_thread): Reflect loss of argument to init_exception_handler. * dcrt0.cc (dll_crt0_1): Ditto. * dfcn.cc (dlopen): Ditto. (dlclose): Reset the exception handler after FreeLibrary. * dll_init.cc (dll_list::detach): Make sure that the exception handler is initialized before calling destructors. * exceptions.cc (_cygtls::handle_exceptions): Accommodate new andreas pointer. * thread.cc (verifyable_object_isvalid): Pass objectptr to faulted for explicit NULL pointer checking. * tlsoffsets.h: Regenerate.
* * thread.cc (pthread_mutex::unlock): Don't attempt to unlock if there is anChristopher Faylor2010-02-231-5/+5
| | | | error.
* * include/sys/strace.h: Define _STRACE_SPECIAL.Christopher Faylor2010-02-221-51/+92
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (strace_printf_wrap): Fix NOSTRACE definitions. (strace_printf_wrap1): Fix NOSTRACE definitions. (special_printf): Define. * thread.cc: Perform minor syntax fix in a comment. Rename "is_good_initialzer*" to "is_initializer*" throughout. Use pthread_printf rather than debug_printf throughout. Add extra pthread_printf debugging throughout. (pthread_mutex::_new_mutex): New constant value. (pthread_mutex::_unlocked_mutex): Ditto. (pthread_mutex::_destroyed_mutex): Ditto. (pthread_mutex::no_owner): Define new function. (pthread_mutex::can_be_unlocked): Detect no_owner situation. Handle PTHREAD_MUTEX_NORMAL as a special case. (pthread::create_cancel_event): Use C++ boolean values. (pthread::precreate): Use method to set mutex type. (pthread_cond::pthread_cond): Ditto. (pthread_rwlock::pthread_rwlock): Ditto. (pthread_mutex::pthread_mutex): Set owner to _new_mutex initially. (pthread_mutex::~pthread_mutex): Reset various elements to make it clearer if they are incorrectly reused. (pthread_mutex::lock): Add clarifying comment. (pthread_mutex::unlock): Attempt to handle various mutex types correctly. In particular, reinstate ability to have one thread unlock another thread's mutex if type == PTHREAD_MUTEX_NORMAL. (semaphore::_fixup_after_fork): Avoid redundancy. (pthread_mutex::_fixup_after_fork): Ditto. Fix debugging statement. (__pthread_cond_dowait): Accommodate changes to remove previously inexplicable use can_be_unblocked() as a static function. * thread.h: Rename "is_good_initialzer*" to "is_initializer*" throughout. (pthread_mutex): Reorganize. Make many things private. (pthread_mutex::no_owner): Define new method. (pthread_mutex::_new_mutex): Define new constant. (pthread_mutex::_unlocked_mutex): Ditto. (pthread_mutex::_destroyed_mutex): Ditto.
* * pthread.cc (pthread_mutex_init): Explicitly fill out third arg toChristopher Faylor2010-02-121-55/+14
| | | | | | | | | | | | | | | | | | | | pthread_mutex::init. * thread.cc: Remov some obsolete comments. (verifyable_object_isvalid): Reflect change to use thread_magic_t for magic numbers. (pthread_mutex::pthread_mutex): Set magic number to invalid initially until we've verified that everything is valid. (pthread_mutex::unlock): Fix a comment. (verifyable_object::verifyable_object): Delete here. (~verifyable_object::~verifyable_object): Ditto. (pthread_mutex::init): Don't run is_good_initializer for non-static objects. * thread.h (thread_magic_t): New typedef. (verifyable_object::verifyable_object): Use thread_magic_t; (verifyable_object::magic): Ditto. (pthread_mutex::is_good_initializer_or_bad_object): Remove unneeded variable names. (pthread_mutex::can_be_unlocked): Ditto. (pthread_mutex::init): Ditto. Remove default for third argument.
* * dcrt0.cc (_dll_crt0): Set _main_tls as early as possible.Christopher Faylor2010-02-101-61/+56
| | | | | | | | | | | | | | | | | | | | | | | | | | | | * thread.cc (pthread_mutex::can_be_unlocked): Remove check for MUTEX_OWNER_ANONYMOUS since it is racy and unsafe. (pthread::init_mainthread): Initialize thread directly from _my_tls. (pthread::self): Ditto. (pthread::get_tls_self_pointer): Delete. (pthread_mutex::pthread_mutex): Use an event rather than a semaphore. (pthread_mutex::lock): Rename from _<func>. Derive self directly. (pthread_mutex::tryunlock): Ditto. (pthread_mutex::destroy): Ditto. (pthread_mutex::unlock): Ditto. Accommodate change from semaphore to event. (pthread_mutex::_fixup_after_fork): Accommodate change from semaphore to event. (pthread_mutex::init): Don't attempt to initialize a semaphore unless it is in an initialized state. Do this check under mutex_initialization_lock.lock * thread.h (fast_mutex::init): Use event rather than semaphore. (fast_mutex::lock): Ditto. (pthread_mutex::_lock): Delete. (pthread_mutex::_unlock): Ditto. (pthread_mutex::_trylock): Ditto. (pthread_mutex::_destroy): Ditto. (pthread_mutex::get_pthread_self): Ditto. (pthread_mutex::get_tls_self_pointer): Ditto. (pthread_mutex::lock): Un-inline. (pthread_mutex::unlock): Ditto. (pthread_mutex::trylock): Ditto. (pthread_mutex::destroy): Ditto.
* * cygtls.h (struct _cygtls): Remove unneeded elements.Christopher Faylor2010-02-101-5/+1
| | | | | * thread.cc (pthread::exit): Avoid potential double call to _my_tls.remove. * tlsoffsets.h: Regenerate.
* Throughout, replace hMainProc with GetCurrentProcess/NtCurrentProcessCorinna Vinschen2009-12-181-2/+3
| | | | | | | | | | | | according to context. Throughout, replace hMainThread with GetCurrentThread/NtCurrentThread according to context. * dcrt0.cc (dll_crt0_0): Drop duplication of GetCurrentProcess to hMainProc. Drop duplication of GetCurrentThread to hMainThread. * dtable.cc (dtable::stdio_init): Remove useless comment. * globals.cc (hMainProc): Remove. (hMainThread): Remove. * ntdll.h (NtCurrentProcess): Define. (NtCurrentThread: Define.
* * thread.cc (__cygwin_lock_lock): Delete racy optimisation.Dave Korn2009-06-041-14/+4
| | | | (__cygwin_lock_unlock): Likewise.
* * thread.h (struct pthread_rwlock::RWLOCK_READER): Add counter n.Corinna Vinschen2009-01-201-4/+16
| | | | | | | | * thread.cc (pthread_rwlock::rdlock): If a thread already owns a read lock, just count the number of locks for it, per SUSv4. (pthread_rwlock::tryrdlock): Ditto. (pthread_rwlock::unlock): If a thread has more than one concurrent read locks, just count down.
* * pthread.cc (pthread_mutex::_unlock): Avoid unlocking a mutex if theChristopher Faylor2008-11-071-10/+13
| | | | | | | | | | | recursion_counter is already 0. (pthread_mutex::_destroy): Don't consider a mutex busy if its recursion_counter == 0. (pthread_mutex::_fixup_after_fork): Set recursion_counter to 0 to flag that we've just forked. Don't reset the owner of this mutex since the forkee may think it still owns the mutex. Reinstate initialization of win32_obj_id. * fhandler_floppy.cc (fhandler_dev_floppy::raw_read): Initialize a variable to bypass a C++ warning.
* * thread.cc (pthread_mutex::_fixup_after_fork): Reinstate DEBUGGINGChristopher Faylor2008-09-301-1/+4
| | | | conditional.
* * thread.cc (pthread_mutex::_fixup_after_fork): Just reset lock to pristineChristopher Faylor2008-09-301-22/+6
| | | | state after fork. Don't recreate a mutex since it may not actually be needed.
* * Makefile.in (DLL_OFILES): Add kernel32.o.Corinna Vinschen2008-04-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * autoload.cc (WSACloseEvent): Remove. (WSACreateEvent): Remove. * cygheap.cc (cygheap_init): Drop initializing shared_prefix. * cygheap.h (struct init_cygheap): Drop shared_prefix and shared_prefix_buf members. * fhandler_socket.cc (sock_shared_name): New static function. (search_wsa_event_slot): Convert name buffers to WCHAR. Call NtCreateMutant/NtOpenMutant to create mutexes in session local namespace. (fhandler_socket::init_events): Ditto. Fix debug output. (fhandler_socket::release_events): Close mutexes using NtClose. (fhandler_socket::dup): Ditto. * kernel32.cc: New file, implementing Win32 calls in a Cygwin-specific way. * mmap.cc (MapView): Make static. * ntdll.h: Fix status code sorting. (STATUS_OBJECT_NAME_EXISTS): Define. (SEMAPHORE_QUERY_STATE): Define. (CYG_SHARED_DIR_ACCESS): Define. (CYG_MUTANT_ACCESS): Define. (CYG_EVENT_ACCESS): Define. (CYG_SEMAPHORE_ACCESS): Define. (enum _PROCESSINFOCLASS): Define ProcessSessionInformation. (struct _PROCESS_SESSION_INFORMATION): Define. (NtCreateSemaphore): Declare. (NtOpenSemaphore): Declare. * flock.cc: Use CYG_xxx_ACCESS access masks where appropriate. * posix_ipc.cc (ipc_mutex_init): Use native functions to create mutex. Create in cygwin-shared subdir. (ipc_cond_init): Ditto for event. (ipc_mutex_close): Use NtClose. (ipc_cond_close): Ditto. (mq_open): Drop "cyg" prefix from mqh_uname. * shared.cc (CYG_SHARED_DIR_ACCESS): Drop definition here. (_cygwin_testing): Declare extern on file level. (get_shared_parent_dir): Change name of shared directory. Add name to api_fatal output. (get_session_parent_dir): New function. (shared_name): Simplify. (shared_info::initialize): Call get_session_parent_dir. * shared_info.h (get_session_parent_dir): Declare. * smallprint.cc (__small_vswprintf): Fix bug in multibyte string conversion. * thread.cc (semaphore::semaphore): Align semaphore name to object names in posix IPC functions. * include/cygwin/version.h (CYGWIN_VERSION_SHARED_DATA): Bump.
* Remove unneeded header files from source files throughout.Christopher Faylor2008-04-071-11/+0
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* Add miscfuncs.h to files as needed throughout.Christopher Faylor2008-04-071-0/+1
| | | | | | | | | | | | * mount.cc: New file. * path.cc: Move mount-specific stuff into mount.cc. Move common stuff into miscfuncs.cc. Remove unneeded includes. * miscfuncs.cc: Move some common path functions here. * miscfuncs.h: New file. * winsup.h: Move miscelleneous functions to miscfuncs.h. * dcrt0.cc: Remove unneeded includes. * Makefile.in (DLL_OFILES): Add mount.o. * include/cygwin/config.h: Fix a minor typo.
* * Fix copyright dates.Corinna Vinschen2008-04-011-1/+1
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* Perform whitespace cleanup throughout.Christopher Faylor2008-02-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | * dcrt0.cc (signal_shift_subtract): Eliminate ancient backwards compatibility. (check_sanity_and_sync): Ditto. * winsup.h (SIGTOMASK): Ditto. Just use constant in signal calculation. * include/cygwin/version: Remove backwards signal mask compatibility define. * path.cc (symlink_info::check_sysfile): Cosmetic change. * registry.cc (get_registry_hive_path): Remove unneeded variable. * exceptions.cc (handle_sigsuspend): Eliminate thread signal mask and use either main sigmask or current thread sigmask. (set_process_mask): Ditto. (sighold): Ditto. (sigrelse): Ditto. (sigset): Ditto. (set_process_mask_delta): Ditto. (_cygtls::call_signal_handler): Ditto. * fhandler_process.cc (format_process_status): Ditto. * fhandler_termios.cc (fhandler_termios::bg_check): Ditto. * pinfo.h (class pinfo): Ditto. * select.cc (pselect): Ditto. * signal.cc (sigprocmask): Ditto. (abort): Ditto. (sigpause): Ditto. (sigsend): Ditto. (wait_sig): Ditto. * thread.h (pthread::parent_tls): New member. * thread.cc (pthread::pthread): Record parent_tls here. (pthread::thread_init_wrapper): Initialize sigmask from parent thread.
* * syscalls.cc (_isatty): Define as an alias to isatty to override newlibChristopher Faylor2008-02-131-2/+18
| | | | | | version. * thread.cc (pthread_kill): Deal with signal 0 as per POSIX and also avoid manipulating an invalid thread.
* * fhandler_registry.cc: Use NAME_MAX + 1 instead of CYG_MAX_PATHCorinna Vinschen2007-12-051-1/+1
| | | | | | | | | | | | | | | | | | | | throughout for subkey name buffer size. * fhandler_socket.cc (search_wsa_event_slot): Use MAX_PATH instead of CYG_MAX_PATH for mutext name buffer size. (fhandler_socket::init_events): Ditto. * fhandler_virtual.cc (fhandler_virtual::opendir): Check path length against PATH_MAX instead of against CYG_MAX_PATH. * registry.cc (get_registry_hive_path): Use PATH_MAX instead of CYG_MAX_PATH for registry value path buffer size. * shared.cc (open_shared): Use MAX_PATH instead of CYG_MAX_PATH for shared memory name buffer size. * thread.cc (semaphore::semaphore): Use MAX_PATH instead of CYG_MAX_PATH for semaphore name buffer size. * uinfo.cc (cygheap_user::env_userprofile): Use PATH_MAX instead of CYG_MAX_PATH for temporary path name buffer size. * winf.h (LINE_BUF_CHUNK): Define as MAX_PATH * 2. * include/sys/dirent.h: Include sys/limits.h. Define name buffer sizes using NAME_MAX.
* Drop old SetResourceLock stuff in favor of mutos.Corinna Vinschen2007-11-271-37/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * dcrt0.cc (_reslock): Remove. (__cygwin_user_data): Accommodate removal of resourcelocks member. (dll_crt0_0): Don't initialize resourcelocks. * exceptions.cc (_cygtls::signal_exit): Drop resourcelocks handling. * mmap.cc (mmap_guard): New muto. (LIST_LOCK): Define. (LIST_UNLOCK): Define. (mmap_list::search_record): Remove. (mmap_list::try_map): Include code for anonymous case from mmap_list::search_record. (mmap_is_attached_or_noreserve): Access bookkeeping lists in a thread safe way. (mmap64): Replace SetResourceLock/ReleaseResourceLock by LIST_LOCK/LIST_UNLOCK. Lock at the latest possible point. (munmap): Replace SetResourceLock/ReleaseResourceLock by LIST_LOCK/LIST_UNLOCK. (msync): Ditto. (mprotect): Ditto. * thread.cc (ResourceLocks::Lock): Remove. (SetResourceLock): Remove. (ReleaseResourceLock): Remove. (ResourceLocks::Init): Remove. (ResourceLocks::Delete): Remove. * thread.h (SetResourceLock): Drop declaration. (ReleaseResourceLock): Ditto. (class ResourceLocks): Drop definition. * include/sys/cygwin.h (class ResourceLocks): Drop forward declaration. (struct per_process): Replace resourcelocks with additional unused2 element. (per_process_overwrite): Accommodate above change.
* * thread.cc (pthread_key_create): Drop check for incoming valid object.Corinna Vinschen2007-11-061-5/+0
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* * cygheap.cc (cygheap_init): Fix formatting. Remove comment. SetCorinna Vinschen2007-03-291-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | shared_prefix depending only on terminal service capability. * dcrt0.cc (dll_crt0_1): Don't call set_cygwin_privileges here. * fhandler_fifo.cc (fhandler_fifo::open): Create the mutex as global object. * posix_ipc.cc (ipc_mutex_init): Use cygheap->shared_prefix. (ipc_cond_init): Ditto. * sec_helper.cc (privilege_name): Make static. Use LookupPrivilegeName directly to be independent of the state of cygheap. (set_privilege): Take a LUID as parameter instead of an index value. Only print debug output in case of failure. (set_cygwin_privileges): Add comment. Use LookupPrivilegeValue to get privilege LUIDs. (init_global_security): Call set_cygwin_privileges here. * security.h (privilege_name): Drop declaration. (set_privilege): Declare according to above change. (set_process_privilege): Call privilege_luid to get LUID. (_push_thread_privilege): Ditto. * shared.cc (open_shared): Add comment. On systems supporting the SeCreateGlobalPrivilege, try to create/open global shared memory first. Fall back to local shared memory if that fails. * thread.cc (semaphore::semaphore): Use cygheap->shared_prefix. * wincap.h (wincapc::has_create_global_privilege): New element. * wincap.cc: Implement above element throughout.
* * dcrt0.cc (child_info_fork::alloc_stack_hard_way): Change sense of guard test.Christopher Faylor2007-02-221-9/+24
| | | | | | | | | | | | | | | | | | | | | | Increase size of stack reserved and increase size before the current stack pointer. Use pointers when doing arithmetic. (dll_crt0_1): Initialize exception handler when we notice we're the child of a fork from non-main thread. * fork.cc (frok::parent): Make argument volatile. (frok::child): Ditto. (lock_signals): New class. (lock_pthread): Ditto. (hold_everhthing): Ditto. (frok::parent): Move atforkprepare and atforkparent to lock_pthread class. (fork): Make ischild boolean. Use hold_everything variable within limited scope to set various mutexes in such a way as to avoid deadlocks. * thread.h (pthread_mutex::tid): New variable, active when debugging for tracking thread id of owner. (pthread_mutex::set_owner): Set tid when debugging. * thread.cc (pthread_mutex::pthread_mutex): Clear tid. (pthread_mutex::_unlock): Ditto when unlocking. (pthread_mutex::fixup_after_fork): Set tid to special value after forking since owner is unknown.
* * cygwin.din (sem_unlink): Export.Corinna Vinschen2007-02-201-195/+242
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * posix_ipc.cc: Include thread.h and semaphore.h. Remove TODO comment. (ipc_names): Add max_len member. Set to maximum length of the path before tacking on the prefix path. Set prefix path for named semaphors to /dev/shm, as on Linux. (enum ipc_type_t): Change sem to semaphore to avoid name conflicts. (check_path): Detect empty paths. Use ipc_names's max_len member. Use __small_sprintf to create full object path name. Special case semaphores. (ipc_cond_init): Drop superfluous strcpy. (class ipc_flock): New class to simplify file locking in subsequent code. (struct mq_hdr): Raise size of mqh_uname to allow adding a unique LUID to the name. (mq_open): Fix formatting. Create unique synchronization object names using AllocateLocallyUniqueId. (struct sem_finfo): New structure defining named semaphore file content. (sem_open): Move here. Rework implementation to allow kernel persistent implementation of POSIX named semaphores. (_sem_close): Implement sem_close. (sem_close): Move here. Just call _sem_close with do_close parameter set to true. (sem_unlink): New function. * pthread.cc (mangle_sem_name): Remove. (sem_open): Move to posix_ipc.cc. (sem_close): Ditto. * syscalls.cc (close_all_files): Call semaphore::terminate here. * thread.cc: Fix formatting. Rearrange semaphore functions so that they are close together. (semaphore::semaphore): Rework to play nicely with new named semaphore implementation. (semaphore::_terminate): Call _sem_close if semaphore is a named semaphore. (semaphore::destroy): Don't destroy named semaphores. Return EINVAL instead. (semaphore::close): Only destroy named semaphores. Return EINVAL otherwise. (semaphore::open): Rework to play nicely with new named semaphore implementation. Loop through existing semaphores to be able to return same sem_t pointer as a former call on the same named semaphore. (semaphore::getinternal): New function called from _sem_close. * thread.h (class List): Make mx and head public. (class semaphore): Fix formatting. Align method declarations with implementation in thread.cc. Add members used for named semaphores. (semaphore::terminate): New static method. * include/semaphore.h: Redefine SEM_FAILED. Fix formatting. (sem_unlink): Add declaration. * include/cygwin/version.h: Bump API minor number.
* * thread.cc (verifyable_object_isvalid): Check for NULL specifically.Christopher Faylor2006-05-271-4/+6
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* * thread.cc (pthread_mutex::is_good_initializer_or_bad_object): Delete.Corinna Vinschen2006-03-221-55/+27
| | | | | | | | | (pthread_cond::is_good_initializer_or_bad_object): Delete. (pthread_rwlock::is_good_initializer_or_bad_object): Delete. (pthread_cond::init): Remove disabled code. Guard assignment to object to initialize against access violation. (pthread_rwlock::init): Ditto. (pthread_mutex::init): Ditto.
* * thread.cc (pthread_cond::init): Disable validity test of objectCorinna Vinschen2006-03-221-6/+12
| | | | | | to initialize since test of uninitialized content is unreliable. (pthread_rwlock::init): Ditto. (pthread_mutex::init): Ditto.
* Always zero all elements of siginfo_t throughout.Christopher Faylor2006-02-061-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | * cygtls.h (_cygtls::thread_context): Declare new field. (_cygtls::thread_id): Ditto. (_cygtls::signal_exit): Move into this class. (_cygtls::copy_context): Declare new function. (_cygtls::signal_debugger): Ditto. * cygtls.cc (_cygtls::init_thread): Fill out thread id field. * exceptions.cc (exception): Change message when exception info is unknown. Copy context to thread local storage. (_cygtls::handle_exceptions): Avoid double test for fault_guarded. Reflect move of signal_exit to _cygtls class. (sigpacket::process): Copy context to thread local storage. (_cygtls::signal_exit): Move to _cygtls class. Call signal_debugger to notify debugger of exiting signal (WIP). Call stackdump here (WIP). (_cygtls::copy_context): Define new function. (_cygtls::signal_debugger): Ditto. * tlsoffsets.h: Regenerate. * include/cygwin.h (_fpstate): New internal structure. (ucontext): Declare new structure (WIP). (__COPY_CONTEXT_SIZE): New define. * exceptions.cc (_cygtls::interrupt_setup): Clear "threadkill" field when there is no sigwaiting thread. (setup_handler): Move event handling into interrupt_setup.
* * cygtls.h (_cygtls::el): New field.Christopher Faylor2005-12-031-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (_cygtls::handle_exceptions): New function declaration. (_cygtls::handle_threadlist_exception): Ditto. (_cygtls::init_exception_handler): Ditto. (_cygtls::init_threadlist_exceptions): Remove arg from declaration. * cygtls.cc (_cygtls::call2): Don't initialize exceptions here. (_cygtls::init_thread): Do it here instead and use member function. (_cygtls::handle_threadlist_exception): Move into _cygtls class. (_cygtls::init_exception_handler): Ditto. Rely on existence of 'el' memmber in _cygtls. (_cygtls::init_threadlist_exceptions): Ditto. * dcrt0.cc (dll_crt0_1): Remove exception_list definition and setting since it now commonly resides in the tls. * exceptions.cc (init_exception_handler): Move to cygtls.cc. (init_exceptions): Ditto. (rtl_unwind): New, safe wrapper function for RtlUnwind. (_cygtls::handle_exceptions): Move to _cygtls. Call rtl_unwind to unwind frames and eliminate copying of structures. Put address of failing instruction in si_addr, not the address on the stack. Return 0 to indicate that we've handled this exception. * external.cc (cygwin_internal): Make CW_INIT_EXCEPTIONS a no-op. * sigproc.cc (wait_sig): Accommodate argument change to _cygtls::init_threadlist_exceptions. * tlsoffsets.h: Regenerate. * include/exceptions.h (exception_list): Add more stuff to the exception list. Apparently windows needs this? (init_exceptions): Remove bogus declaration. * include/cygwin/signal.h (SI_USER): Redefine as zero as per SUSv3. * thread.cc (pthread_kill): Set si_pid and si_uid. * timer.cc (timer_thread): Set si_code to SI_TIMER.
* * thread.h: Revert patch from 2005-09-05.Corinna Vinschen2005-09-061-4/+5
| | | | | * thread.cc (pthread_mutex::can_be_unlocked): Return true also if mutex is owned by MUTEX_OWNER_ANONYMOUS.
* white spaceChristopher Faylor2005-08-121-1/+1
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* * thread.cc (pthread::create(3 args)): Make bool.Corinna Vinschen2005-08-051-5/+9
| | | | | | | (pthread_null::create): Ditto. (pthread::create(4 args)): Check return of inner create rather than calling is_good_object(). * thread.h: Ditto.
* * thread.cc (pthread_cond_timedwait): Check abstime for validityCorinna Vinschen2005-08-051-4/+16
| | | | | according to SUSv3. Rewrite timeout check and waitlength calculation to avoid overflow problems.
* Eliminate (void) cast on standalone function calls throughout.Christopher Faylor2005-07-061-1/+1
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* Change foo (void) to foo () for all c++ functions throughout. Remove allChristopher Faylor2005-07-051-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | fhandler_*::dump functions throughout. * fhandler.h (fhandler_dev_mem::close): Remove pass-through function in favor of virtual method. (handler_dev_raw::close): Ditto. (fhandler_dev_clipboard::fixup_after_exec): New method. * fhandler_dev_mem.cc (fhandler_dev_mem::close): Eliminate pass through * fhandler_dev_raw.cc (fhandler_dev_raw::close): Ditto. * fhandler_clipboard.cc (fhandler_dev_clipboard::close): Don't go to extra effort when execing. (fhandler_dev_clipboard::fixup_after_exec): New function. * fhandler_console.cc (fhandler_console::close): Don't do "extra stuff" when we know we're execing. * fhandler_disk_file.cc (fhandler_disk_file::close): Ditto. * fhandler_dsp.cc (fhandler_dev_dsp::close): Ditto. * fhandler_fifo.cc (fhandler_fifo.cc::close): Ditto. function in favor of base function. * fhandler_random.cc (fhandler_dev_random::close): Ditto. * fhandler_registry.cc (fhandler_registry::close): Ditto. * fhandler_tty.cc (fhandler_tty_slave::close): Ditto. * fhandler_virtual.cc (fhandler_virtual::close): Ditto. * pinfo.cc (proc_waiter): Remove unneeded hExeced declaration. * sigproc.cc: Ditto. * winsup.h (hExeced): Define here. * fhandler_virtual.cc (fhandler_virtual::fixup_after_exec): Just call close() to reinitialize things to known state.
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