flags.
(fhandler_base::open): Ditto.
* fhandler_floppy.cc (fhandler_dev_floppy::open): Don't allocate devbuf
in O_DIRECT case.
* fhandler_raw.cc (fhandler_dev_raw::ioctl): Don't allow buffer
changes in O_DIRECT case. Allow returning a buffer size 0, which
indicates O_DIRECT.
* fhandler_tape.cc (fhandler_dev_tape::open): Use O_SYNC flag to
hand down the !buffer_writes case. Don't allocate devbuf in O_DIRECT
case.
(fhandler_dev_tape::raw_read): Don't mess with devbuf if it's NULL.
* include/fcntl.h: Define _FDIRECT, O_DIRECT, O_DSYNC and O_RSYNC.
* include/cygwin/version.h: Bump API minor version.
* fhandler_tty.cc (fhandler_tty_slave::open): Don't free original windows
station since that will cause strange problems displaying fonts. Reset windows
station to original station after creating console.
* times.cc (hires_ms::usecs): Only reprime when calculated time is less than
system time.
(winpids::add): Alias the element that we are working on for slightly better
clarity. Honor the "make_copy" flag.
(winpids::release): Free and zero procinfo field if it was allocated via
malloc.
(winpids::~winpids): Free copied array.
* pinfo.h (class pinfo): Make winpids class a friend.
(winpids::make_copy): New field.
(winpids::copied): New array.
(winpids::reset): Reset npids after releasing pinfos or suffer a memory leak.
(winpids::winpids): Try harder to allocate all fields in the class.
(hires_ms::initime_us): Just define as LONGLONG.
(hires_ms::uptime): New function.
* select.cc (select_stuff::wait): Use gtod for timing to attempt to avoid
windows 32 bit wraparound.
* times.cc (systime): New function.
(times): Replace GetTickCount with gtod.uptime.
(hires_us::prime): Use systime() to calculate system time rather than calling
GetSystemTimeAsFileTime directly.
(hires_ms::prime): Ditto. Eliminate initime_ms.
(hires_ms::usecs): Try harder to detect wraparound.
* fhandler_proc.cc (format_proc_partitions): Set drive_size to zero to avoid a
compiler warning.
STATUS_ACCESS_VIOLATION, check if the page is a mmaped page beyond
a file's EOF. Generate SIGBUS instead of SIGSEGV then.
* mmap.cc (__PROT_ATTACH): New define.
(__PROT_FILLER): Ditto.
(fh_anonymous): Rename from fh_paging_file;
(fh_disk_file): New global static variable.
(attached): New inline function.
(filler): Ditto.
(gen_create_protect): Split off from gen_protect to use the file's
access mode to create mapping always with maximum allowed protections.
(gen_protect): Accomodate pages attached beyond EOF. Use symbolic
values instead of numerics when possible. Drop create parameter.
(gen_access): Use file's access mode instead of protection.
(CreateMapping9x): Create named mapping names so that different
creation access modes result in different mappings.
(CreateMappingNT): Only reserve attached pages, don't commit them.
(MapViewNT): Ditto. Set AT_ROUND_TO_PAGE for all non-NULL base
addresses.
(mmap_func_t): Define CreateMapping and MapView function pointers
with additional openflags parameter.
(class mmap_record): Add openflags member.
(mmap_record::mmap_record): Add openflags parameter.
(mmap_record::get_openflags): New accessor.
(mmap_record::attached): Call global attached function.
(mmap_record::filler): Call global filler function.
(mmap_record::gen_create_protect): Call global gen_create_protect
function.
(mmap_record::gen_protect): Drop create parameter.
(mmap_record::alloc_fh): Set fhandler's access flags.
(list::search_record): Accomodate filler pages.
(list::set): Use inode number as hash value.
(map::get_list_by_fd): Check hash value against file's inode number.
(mmap_is_attached_page): New function to evaluate if a given address
is on a attached page. Called from _cygtls::handle_exceptions.
(mmap_worker): New function to do mapping and bookkeeping in a
single call.
(mmap64): Use roundup2 to round length to pagesize alignment.
Initialize global fhandlers. Simplify anonymous initialization.
Add SUSv3 compatible check of file open mode vs. requested protection.
Try creating new file handles to allow maximum page protection.
Allow creating attached pages in case of mapping beyond EOF.
Close new file handle if one has been created.
(munmap): Align len to pagesize.
(msync): Rework argument checks. Align len to pagesize.
(mprotect): Ditto. Accomodate attached pages.
(mlock): Use roundup/rounddown macros instead of homemade expressions.
(munlock): Add page alignment as in mlock.
(fhandler_dev_zero::munmap): Fix unmapping of non-private mappings.
(fhandler_dev_zero::fixup_mmap_after_fork): Accomodate filler pages.
(fixup_mmaps_after_fork): Don't fail if attached pages couldn't be
created in child. Avoid superfluous call to VirtualFree. Check for
original allocation protection to fix PAGE_WRITECOPY protection.
* ntdll.h: Revert deletion of AT_ROUND_TO_PAGE define.
* winsup.h (mmap_is_attached_page): Declare.
* include/cygwin/version.h: Bump api minor number to 147, reflecting
obsolescence of d_ino.
(CYGWIN_VERSION_USER_API_VERSION_COMBINED): New convenience macro.
(CYGWIN_VERSION_CHECK_FOR_NEEDS_D_INO): New convenience macro.
doesn't care.
(exception_handler): Use real exception_list parameter type rather than void *
* tlsoffsets.h: Regenerate.
* cygtls.h (_cygtls::handle_exceptions): Use real exception_list parameter type
rather than void *.
(handle_threadlist_exception): Ditto.
(init_exception_handler): Ditto.
* cygtls.cc (_cygtls::handle_threadlist_exception ): Ditto.
(_cygtls::init_exception_handler): Add kludge to terminate linked list with a
loop, which seems to solve problem of RtlUnwind causing problems
* exceptions.cc (rtl_unwind): Use real exception_list parameter type rather
than void *.
(_cygtls::handle_exceptions): Ditto.
(_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.
(gen_protect): Convert to inline function.
(gen_access): Ditto.
(mmap_record::gen_protect): Add create parameter as in global function.
(mmap_record::alloc_page_map): Change condition so that always the
correct protection setting is set after mapping has been established.
(mmap64): For anonymous mappings set offset always to 0.
(fixup_mmaps_after_fork): Always call fixup_mmap_after_fork method
with the MAP_FIXED flag set.
(_major): Ditto.
(device::is_fs_special): New function.
* fhandler_disk_file.cc (fhandler_base::fstat_helper): Set the size to 0 for
devices rather than reporting the size of the symlink.
(fhandler_disk_file::readdir): Use is_fs_special to determine if .lnk should be
stripped.
* path.cc: Rename symlink_info::is_symlink to symlink_info::issymlink
throughout.
(symlink_info::isdevice): New field.
(path_conv::check): Use 'isdevice' to determine if just-parsed entity is a
device rather than relying on non-zero major/minor.
(symlink_info::parse_device): Set isdevice to true if we've discovered a
device.
(symlink_info::check): Clear isdevice field prior to processing. Use isdevice
to control debugging output.
(symlink_info::set): Set isdevice to false.
* path.h (path_conv::is_fs_special): New function.
* devices.cc: Regenerate.
within another already existing map, moved from mmap64 here.
(mmap64): Just call try_map now.
(fhandler_dev_zero::fixup_mmap_after_fork): Always create new private
map with PAGE_READWRITE protection.
(fixup_mmaps_after_fork): Fix comment.
(fhandler_dev_zero::munmap): Ditto.
(fhandler_dev_zero::msync): Ditto.
(fhandler_dev_zero::fixup_mmap_after_fork): Ditto.
* mmap.cc: Implement anonymous mapping using fhandler_dev_zero class.
Implement private anonymous maps using VirtualAlloc/VirtualFree. Fix
or add some more comments.
(fh_paging_file): Change to type fhandler_dev_zero.
(priv): New static inline function to avoid having lots of flag bit
tests in the code. Use throughout were appropriate.
(fixed): Ditto.
(anonymous): Ditto.
(noreserve): Ditto.
(autogrow): Ditto.
(gen_protect): Never generate PAGE_WRITECOPY protection for
private anonymous maps.
(gen_access): Drop FILE_MAP_EXECUTE handling since it's not supported
correctly on 9x.
(VirtualProt9x): Move comment from mmap64 here.
(mmap_record::mmap_record): Gegerate correct device entry for
anonymous maps, though unused right now.
(mmap_record::priv): Call global priv function.
(mmap_record::fixed): Call global fixed function.
(mmap_record::anonymous): Call global anonymous function.
(mmap_record::noreserve): Call global noreserve function.
(mmap_record::autogrow): Call global autogrow function.
(list::anonymous): New method. Use throughout were appropriate.
(mmap_record::compatible_flags): Drop now useless ifdef.
(mmap_record::alloc_page_map): Accomodate private anonymous maps.
(mmap_record::map_pages): Accomodate MAP_NORESERVE mappings.
(mmap_record::unmap_pages): Accomodate private anonymous maps.
(mmap64): Simplify argument check. Don't remove the MAP_PRIVATE flag
for anonymous mappings on 9x anymore since that's now handled
gracefully.
(mprotect): Accomodate MAP_NORESERVE mappings. Fix case when
non-mmap areas are just MEM_RESERVEd.
(fhandler_dev_zero::mmap): Implement anonymous mapping here.
(fhandler_dev_zero::munmap): Ditto.
(fhandler_dev_zero::msyn): Ditto.
(fhandler_dev_zero::fixup_mmap_after_fork): Ditto.
(fixup_mmaps_after_fork): Accomodate private anonymous maps. Enhance
debug output in case VirtualProtect fails.
* include/sys/mman.h: Really define MAP_NORESERVE now.
* cygheap.cc (_csbrk): Call getpagesize instead of getshmlba.
* dcrt0.cc (dll_crt0_0): Call mmap_init.
* external.cc (cygwin_internal): Call getpagesize instead of getshmlba.
* fhandler.h (fhandler_base::mmap): Change access to prot parameter.
(fhandler_base::fixup_mmap_after_fork): Ditto.
(fhandler_disk_file::mmap): Ditto.
(fhandler_disk_file::fixup_mmap_after_fork): Ditto.
(fhandler_dev_mem::mmap): Ditto.
(fhandler_dev_mem::fixup_mmap_after_fork): Ditto.
* fhandler_mem.cc (fhandler_dev_mem::write): Call getsystempagesize
instead of getpagesize.
(fhandler_dev_mem::read): Ditto.
(fhandler_dev_mem::fstat): Ditto.
(fhandler_dev_mem::mmap): Move to mmap.cc.
(fhandler_dev_mem::munmap): Ditto.
(fhandler_dev_mem::msync): Ditto.
(fhandler_dev_mem::fixup_mmap_after_fork): Ditto.
* fhandler_proc.cc (format_proc_meminfo): Call getsystempagesize
instead of getpagesize.
* fhandler_process.cc (format_process_stat): Ditto.
(format_process_status): Ditto.
(get_mem_values): Ditto.
* mmap.cc: Fix formatting. Try to make more readable and modular.
Take advantage of pagesize==granularity.
(gen_protect): New static function to evaluate Windows
protection bits from POSIX protection and flags.
(gen_access): Ditto for Windows access mode.
(VirtualProt9x): Wrapper function to call VirtualProtect on 9x.
(VirtualProtNT): Ditto for NT.
(VirtualProtEx9x): Ditto for VirtualProtectEx on 9x.
(VirtualProtExNT): Ditto for NT.
(CreateMapping9x): Wrapper function for creating a mapping handle on 9x.
(CreateMappingNT): Ditto for NT.
(MapView9x): Wrapper function to map a view on 9x.
(MapViewNT): Ditto for NT.
(mmap_funcs_9x): Structure containing function pointers to wrapper
functions for 9x.
(mmap_funcs_nt): Ditto for NT.
(mmap_func): Pointer to wrapper functions used in subsequent code.
(mmap_init): Initialize mmap_func depending on OS.
(class mmap_record): Use sensible member names. Add POSIX protection
member. Drop Windows access flags member. Constify more methods.
Use accessors instead of direct member access inside of own methods.
(mmap_record::gen_protect): Class wrapper to evaluate matching
Windows protection bits.
(mmap_record::gen_access): Ditto for Windows access flags.
(mmap_record::compatible_flags): New function to check if flags are
compatible with flags of existing map.
(list::add_record): Drop offset and length arguments.
(class map): Change counters to unsigned. Match usage throughout.
(mmapped_areas): Convert from pointer to global struct.
(mmap_record::alloc_page_map): Simplify.
(mmap_record::map_pages): Ditto.
(mmap_record::fixup_page_map): Delete.
(mmap64): Simplify. Add workaround for Windows 98 bug. Fix bug on
NT that existing anonymous mappings weren't searched for a match.
(munmap): Add workaround for Windows 98 bug.
(msync): Simplify.
(mprotect): Handle existing maps correctly.
(mlock): Add local pagesize variable and enlightening comment.
(fhandler_disk_file::mmap): Main functionality now in CreateMapping/
MapView wrapper functions.
(fhandler_disk_file::fixup_mmap_after_fork): Call MapView wrapper.
(fhandler_dev_mem::mmap): Moved from fhandler_mem.cc. Simplify by
calling MapViewNT.
(fhandler_dev_mem::munmap): Moved from fhandler_mem.cc.
(fhandler_dev_mem::msync): Ditto.
(fhandler_dev_mem::fixup_mmap_after_fork): Ditto. Call MapViewNT.
(fixup_mmaps_after_fork): Restructure and hopefully speed up loop for
setting protection and memory content on MAP_PRIVATE maps.
* ntdll.h (AT_ROUND_TO_PAGE): Remove define.
(AT_EXTENDABLE_FILE): Add define.
(NtCreateSection): Add prototype.
* syscalls.cc (getpagesize): Return granularity as pagesize now.
(getsystempagesize): New function to retrieve "real" pagesize.
(getshmlba): Delete since it's replaced by getpagesize now.
* wincap.h (wincaps::has_mmap_alignment_bug): New element.
* wincap.cc: Implement above element throughout.
* winsup.h (getshmlba): Drop prototype.
(getsystempagesize): Add prototype.
(mmap_init): Ditto.
* include/sys/mman.h: (Not yet) define MAP_NORESERVE.
whenever ctty == -1 regardles of whetehr there's a windows station already
assigned. Close the old windows station in this situation.
* pinfo.cc (_pinfo::set_ctty): Reinstate incrementing of console count when
recording ctty so that the current tty is always around.
bool parameter.
(fhandler_console::fixup_after_exec): Accommodate fixup_after_fork_exec's
parameter.
(fhandler_console::fixup_after_fork): Ditto.
* fhandler_console.cc (fhandler_console::fixup_after_fork_exec): Avoid opening
new console only when close_on_exec AND execing.
(fhandler_console::fixup_after_fork): Use fixup_after_fork_exec.
(fhandler_console::fixup_after_exec): Ditto.
* fhandler_console.cc (fhandler_console::fixup_after_fork): Delete definition.
(fhandler_console::fixup_after_fork_exec): Rename from fixup_after_exec.
* pinfo.cc (_pinfo::set_ctty): Don't play with console count here.
* syscalls.cc (close_all_files): Don't close cygheap ctty if hExeced since the
child will be copying information from us.
(setsid): Use myctty() rather than raw ctty #.
(init_cygheap::console_count): Renamed from open_fhs. Make private.
* cygheap.cc (init_cygheap::manage_console_count): Define new function.
* dtable.cc (dtable::fixup_after_exec): Always call fixup_after_exec on
elements of fd even when they are about to be closed.
* fhandler.h (report_tty_counts): Remove open_fhs from debugging output.
* fhandler_console.cc (fhandler_console::open): Use manage_console_count rather
than manipulating count directly.
(fhandler_console::close): Ditto.
(fhandler_console::fixup_after_fork): Ditto.
(fhandler_console::fixup_after_exec): Ditto. Don't close handles if
close_on_exec.
* fhandler_tty.cc (fhandler_tty_slave::open): Use manage_console_count() rather
than manipulating count directly. Reflect change in arguments to
report_tty_counts().
(fhandler_tty_slave::close): Ditto for both.
(fhandler_tty_slave::dup): Ditto for both.
(fhandler_tty_slave::ioctl): Use myctty() rather than raw ctty #.
(fhandler_tty_slave::fixup_after_fork): Reflect change in arguments to
report_tty_counts().
(fhandler_tty_master::init_console): Use manage_console_count() rather than
manipulating count directly.
* fhandler_clipboard.cc (fhandler_dev_clipboard::fixup_after_exec): Don't
perform any operations if close_on_exec.
* fhandler_dsp.cc (fhandler_dev_dsp::fixup_after_exec): Ditto.
* fhandler_raw.cc (fhandler_dev_raw::fixup_after_exec): Ditto.
* fhandler_serial.cc (fhandler_serial::fixup_after_exec): Ditto.
* pinfo.h (_pinfo::_ctty): Declare new function.
(myctty): Declare new macro.
(__ctty): Declare new macro.
* pinfo.cc (_pinfo::_ctty): Define new function.
(_pinfo::set_ctty): Use manage_console_count() rather than manipulating count
directly.
* signal.cc (kill_pgrp): Use myctty() and __ctty() macros rather than raw ctty
#.
* syscalls.cc (setsid): Ditto. Use manage_console_count() rather than
manipulating count directly.
* hires.h (hires_ms::minperiod): Remove static designation.
(hires::began_period): New field.
* signal.cc: Include headers required for cygheap.h now that gtod lives in the
cygheap.
* timer.c: Ditto.
* times.cc (gtod): Delete variable.
(gtod::minperiod): Ditto.
(gtod::began_period): Define.
(hires_ms::prime): Add more debugging output. Call timeBeginPeriod only when
!began_period.
process lock should make that unnecessary.
* fork.cc (stack_base): Eliminate.
(frok::parent): Subsume stack_base and just set stack stuff here. Report on
priority class in debugging output.
* spawn.cc (spawn_guts): Report on priority class in debugging output.
deadlocks.
(class locked_process): Move to another header.
* sync.h (lock_process): Define here.
* cygtls.cc (_cygtls::fixup_after_fork): Reset spinning state as well as
stacklock state.
* dcrt0.cc (lock_process::locker): Define.
(dtable::lock_cs): Delete.
* dtable.cc (dtable_init): Eliminate call to init_lock().
(dtable::fixup_after_fork): Ditto.
(dtable::init_lock): Delete definition.
* dtable.h (dtable::init_lock): Delete declaration.
(dtable::lock): Use process lock rather than dtable-specific lock.
(dtable::unlock): Ditto.
* sigproc.cc (sigproc_init): Minor change to debugging output.
* times.cc (utime_worker): Use build_fh_pc rather than reinterpreting the posix
path name again. Return any error from path_conv immediately.
(lutimes): Export.
* times.cc (utimes_worker): Created from utimes, add nofollow flag
to implement utimes and lutimes.
(utimes): Just call utimes_worker.
(lutimes): New function.
(futimes): Ditto.
* include/cygwin/version.h: Bump API minor version.
cygthread to handle extra argument, throughout.
* cygthread.h (cygthread::callproc): Declare new method.
(cygthread::cygthread): Add optional length argument to allow copying arguments
to executing thread.
* cygthread.cc (cygthread::callproc): Define new method.
(cygthread::stub): Use callfunc to invoke thread func to allow potentially
allocating stack memory which will be returned.
(cygthread::simplestub): Ditto.
(cygthread::cygthread): Accept arglen argument. Reset ev here prior to
activating thread. Wait for ev after activating thread if we're copying
contents to the thread. Wait until the end before setting h, to allow thread
synchronization.
(cygthread::release): Don't reset ev here. Rely on that happening the next
time the thread is activated.
* pinfo.h (commune_process): Rename declaration from _pinfo::commune_process.
* pinfo.cc (commune_process): Ditto for definition. Modify slightly to allow
running as a separate cygthread.
* sigproc.cc (child_info::sync): Always wait for both subproc_ready and any
hProcess if we have a cygwin parent.
(talktome): Change argument to be a pointer to siginfo_t. Contiguously
allocate whole siginfo_t structure + any needed extra for eventual passing to
commune_process thread.
(wait_sig): Accommodate change in talktome argument.
* pipe.cc (fhandler_pipe::fixup_after_exec): Remove debugging.
from ws2_32. Rearrange symbol order accordingly. None of the ws2_32
functions is optional right now.
(wsadata): Move from net.cc here. Define NO_COPY.
(wsock_init): Drop unused symbols ws2_32_handle and wsock32_handle.
(load_wsock32): Remove.
(WSACleanup): Remove.
* fhandler_socket.cc: Drop Winsock 1 accommodations throughout.
(fhandler_socket::readv): Accomodate new POSIX style struct msghdr.
(fhandler_socket::writev): Ditto.
(fhandler_socket::recvmsg): Ditto. Handle "old" applications using
former struct msghdr correctly.
* net.cc: Drop Winsock 1 accommodations throughout.
(wsadata): Move definition to autoload.cc.
(set_socket_inheritance): Remove.
(convert_ws1_ip_optname): New static function to convert Winsock1
IPPROTO_IP option values into Winsock2 IPPROTO_IP option values.
(cygwin_setsockopt): Remove wrong and incomplete cleartext printing
of optname. For "old" applications, convert optname from Winsock1
to Winsock2 values before using them. Add comment to describe the
IP_TOS weirdness on W2K and above.
(cygwin_getsockopt): Remove wrong and incomplete cleartext printing
of optname. For "old" applications, convert optname from Winsock1
to Winsock2 values before using them.
* select.cc (start_thread_socket): Forget about winsock2_active.
* winsup.h (wsock32_handle): Remove declaration.
(ws2_32_handle): Ditto.
(netapi32_handle): Ditto.
(wsadata): Ditto.
(winsock2_active): Remove definition.
* include/cygwin/socket.h: Change formatting slightly.
(socklen_t): Move definition up in file.
(struct msghdr): Convert to POSIX style.
(struct cmsghdr): New type.
(CMSG_ALIGN): New macro.
(CMSG_LEN): Ditto.
(CMSG_SPACE): Ditto.
(CMSG_FIRSTHDR): Ditto.
(CMSG_NXTHDR): Ditto.
(CMSG_DATA): Ditto.
(SCM_RIGHTS): Ditto.
(struct OLD_msghdr): Define old msghdr structure for Cygwin internal
purposes.
(MSG_TRUNC): New macro.
(MSG_CTRUNC): Ditto.
(IP_OPTIONS): Redefine IPPROTO_IP option values to Winsock2 values.
Keep Winsock1 values for Cygwin internal purposes.
* include/cygwin/version.h: Bump API minor version.
(CYGWIN_VERSION_CHECK_FOR_USING_ANCIENT_MSGHDR): Define to check for
applications using old struct msghdr.
(CYGWIN_VERSION_CHECK_FOR_USING_WINSOCK1_VALUES): Define to check for
applications using old Winsock1 IPPROTO_IP values.
to add the priority to the message in a syslog conformant way.
(vsyslog): If facility isn't set in the priority, use default facility
as given in call to openlog. Fix agressive use of spaces in syslog
output. Call try_connect_syslogd with priority parameter.
* dtable.h (class dtable): Add class process_lock as a friend.
* dcrt0.cc (get_exit_lock): Delete.
(do_exit): Use process_lock class instead of get_exit_lock.
* exceptions.cc (signal_exit): Ditto.
* pinfo.cc (pinfo::exit): Ditto.
(_pinfo::commune_process): Set process lock around this whole function.
(_pinfo::commune_request): Use process_lock rather than myself.lock.
* pinfo.h (pinfo::_lock): Delete.
(pinfo::initialize_lock): Delete.
(pinfo::lock): Delete.
(pinfo::unlock): Delete.
* winsup.h (get_exit_lock): Delete declaration.
instead.
(get_exit_lock): New function. Grabs the lock and sets initial exit_state.
* exceptions.cc (try_to_debug): Use low_priority_sleep.
(sigpacket::process): Avoid handler if this is an exec stub.
(signal_exit): Use get_exit_lock rather than manipulating the exit_lock
critical section directly.
* pinfo.cc (pinfo::exit): Ditto.
* winsup.h (get_exit_lock): Declare.
(exit_lock): Delete declaration.
commune_send to commune_request throughout.
* pinfo.h (PICOM_EXTRASTR): New flag.
(PICOM_FIFO): Define with new flag.
(_pinfo::hello_pid): Delete.
(_pinfo::tothem): Delete.
(_pinfo::fromthem): Delete.
(_pinfo::commune_process): Rename from commune_recv. Add a siginfo_t argument
to declaration.
(_pinfo::commune_request): Rename from commune_send. Change DWORD to
__uint32_t in declaration.
* pinfo.cc (_pinfo::commune_process): Rename from commune_recv. Add siginfo_t
argument. Use information from argument rather than reading from another pipe.
Synchronize with other process's commune event.
(_pinfo::commune_request): Rename from commune_send. Change DWORD to __uint32
in argument. Fill out information in new siginfo_t element and rely on
extended operation of sig_send rather than trying to deal with synchronization
issues here. Use process handle and read pipe information filled out by
sig_send to gather information from the other process.
* sigproc.cc (sig_send): Take special action if "communing" to ensure
synchronization with the other process and to return information about the
other process to the caller.
(talktome): Accept a siginfo_t and handle arguments. Read additional
information from the signal pipe when _si_commune._si_code has the
PICOM_EXTRASTR flag set.
(wait_sig): Pass the transmitted siginfo_t struct and the pipe handle to
talktome. Close pipe read handle as soon as possible after we detect that
we're exiting.
eof_detected status flag. Delete is_eom and is_eof methods.
Move drive_size, bytes_per_sector, eom_detected status flag, as well
as the methods read_file, write_file, raw_read and raw_write to ...
(class fhandler_dev_floppy): ... here. Remove is_eom and is_eof
methods. Add dup method.
* fhandler_floppy.cc (IS_EOM): New macro.
(fhandler_dev_floppy::is_eom): Remove.
(fhandler_dev_floppy::is_eof): Remove.
(fhandler_dev_floppy::fhandler_dev_floppy): Initialize status flags.
(fhandler_dev_floppy::get_drive_info): Only call EX functions on
systems supporting them and stop suffering strange delays.
(fhandler_dev_floppy::read_file): Move here, drop setting
current_position.
(fhandler_dev_floppy::write_file): Move here, drop setting
current_position.
(fhandler_dev_floppy::open): Rearrange comment.
(fhandler_dev_floppy::dup): New method.
(fhandler_dev_floppy::get_current_position): New inline method. Use
instead of former current_position were appropriate.
(fhandler_dev_floppy::raw_read): Move here. Drop EOF handling.
(fhandler_dev_floppy::raw_write): Move here. Drop EOF handling.
(fhandler_dev_floppy::lseek): Remove useless conditions. Convert
sector_aligned_offset to LARGE_INTEGER to improve SetFilePointer call.
(fhandler_dev_floppy::ioctl): Move blocksize check in RDSETBLK case
to here.
* fhandler_raw.cc (fhandler_dev_raw::is_eom): Remove.
(fhandler_dev_raw::is_eof): Remove.
(fhandler_dev_raw::write_file): Remove.
(fhandler_dev_raw::read_file): Remove.
(fhandler_dev_raw::raw_read): Remove.
(fhandler_dev_raw::raw_write): Remove.
(fhandler_dev_raw::dup): Drop copying removed members.
(fhandler_dev_raw::ioctl): Drop blocksize testing.
* wincap.h: Implement has_disk_ex_ioctls throughout.
* wincap.cc: Ditto.
(wincap_vista): Preliminary wincaps for Windows Vista/Longhorn.
(wincapc::init): Add Vista/Longhorn handling.
eof_detected status flag. Delete is_eom and is_eof methods.
Move drive_size, bytes_per_sector, eom_detected status flag, as well
as the methods read_file, write_file, raw_read and raw_write to ...
(class fhandler_dev_floppy): ... here. Remove is_eom and is_eof
methods. Add dup method.
* fhandler_floppy.cc (IS_EOM): New macro.
(fhandler_dev_floppy::is_eom): Remove.
(fhandler_dev_floppy::is_eof): Remove.
(fhandler_dev_floppy::fhandler_dev_floppy): Initialize status flags.
(fhandler_dev_floppy::get_drive_info): Only call EX functions on
systems supporting them and stop suffering strange delays.
(fhandler_dev_floppy::read_file): Move here, drop setting
current_position.
(fhandler_dev_floppy::write_file): Move here, drop setting
current_position.
(fhandler_dev_floppy::open): Rearrange comment.
(fhandler_dev_floppy::dup): New method.
(fhandler_dev_floppy::get_current_position): New inline method. Use
instead of former current_position were appropriate.
(fhandler_dev_floppy::raw_read): Move here. Drop EOF handling.
(fhandler_dev_floppy::raw_write): Move here. Drop EOF handling.
(fhandler_dev_floppy::lseek): Remove useless conditions. Convert
sector_aligned_offset to LARGE_INTEGER to improve SetFilePointer call.
(fhandler_dev_floppy::ioctl): Move blocksize check in RDSETBLK case
to here.
* fhandler_raw.cc (fhandler_dev_raw::is_eom): Remove.
(fhandler_dev_raw::is_eof): Remove.
(fhandler_dev_raw::write_file): Remove.
(fhandler_dev_raw::read_file): Remove.
(fhandler_dev_raw::raw_read): Remove.
(fhandler_dev_raw::raw_write): Remove.
(fhandler_dev_raw::dup): Drop copying removed members.
(fhandler_dev_raw::ioctl): Drop blocksize testing.
* wincap.h: Implement has_disk_ex_ioctls throughout.
* wincap.cc: Ditto.
(wincap_vista): Preliminary wincaps for Windows Vista/Longhorn.
(wincapc::init): Add Vista/Longhorn handling.
(alloc_stack): Use tls stuff for stack info rather than calling VirtualQuery.
(dll_crt0_0): Initialize _impure_ptr stuff much earlier. Move
init_console_handler here.
* fork.cc (class frok): New class renamed from local fork() struct.
(stack_base): Change argument type. Use tls stuff to determine stack info
rather than calling VirtualQuery.
(frok::child): Rename from fork_child. Eliminate now unneeded arguments.
(frok::parent): Rename from fork_parent and ditto. Set error and errno as
appropriate. Fixup impersonation in cleanup, if needed. Try harder to set
errno appropriately.
(fork): Define "grouped" as a frok type. Deal with errors from fork_parent
here.
* init.cc (dll_entry): Remove init_console_handler call.
try IOCTL_DISK_GET_DRIVE_GEOMETRY_EX and
IOCTL_DISK_GET_PARTITION_INFO_EX ioctls first, to allow access to GPT
partitioned disks. Fall back to old non-EX ioctls otherwise.
Add comment to explain NT4 weirdness.
drive_size, current_position and bytes_per_sector.
(fhandler_dev_floppy::get_drive_info): Declare.
* fhandler_floppy.cc (fhandler_dev_floppy::is_eom): Define ERROR_SEEK
and ERROR_SECTOR_NOT_FOUND as end-of-medium conditions.
(fhandler_dev_floppy::get_drive_info): New method to have one function
retrieving drive info.
(fhandler_dev_floppy::open): Call get_drive_info to get drive
information right from the start.
(fhandler_dev_floppy::lseek): Use and set drive information members.
Especially keep track of current_position.
(fhandler_dev_floppy::ioctl): Ditto.
* fhandler_raw.cc (fhandler_dev_raw::write_file): Keep track of
current_position.
(fhandler_dev_raw::read_file): Ditto.
(fhandler_dev_raw::raw_read): Never try to read beyond end-of-medium.
(fhandler_dev_raw::dup): Handle new drive information members.
be overridden.
* exceptions.cc (_cygtls::call_signal_handler): Call signal handler with extra
siginfo_t * and void * parameters when SA_SIGINFO flag is set.
* signal.cc (signal): Clear SA_SIGINFO flag.
(sigqueue): Fix incorrect setting of si_code.
* sigproc.cc (signal_fixup_after_exec): Clear SA_SIGINFO flag when setting
handler to SIG_DFL.
Christopher Faylor
Corinna Vinschen