newlib/winsup/cygwin/shared.cc

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/* shared.cc: shared data area support.
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
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2006, 2007, 2008 Red Hat, Inc.
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This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include "winsup.h"
#include "miscfuncs.h"
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#include <unistd.h>
#include "cygerrno.h"
#include "pinfo.h"
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.
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#include "path.h"
* devices.cc: New file. * devices.gperf: New file. * devices.shilka: New file. * cygwin-gperf: New file. * cygwin-shilka: New file. * fhandler_fifo.cc: New file. * fhandler_nodevice.cc : New file. Reorganize headers so that path.h precedes fhandler.h throughout. Remove device argument and unit arguments from fhandler constructors throughout. Remove pc arguments to fhandler functions and use internal pc element instead, throughout. Use dev element in pc throughout. Use major/minor elements rather than units and device numbers previously in fhandler class. Use correct methods for fhandler file names rather than directly accessing file name variables, throughout. * Makefile.in (DLL_OFILES): Add devices.o, fhandler_fifo.o * dcrt0.cc (dll_crt0_1): Call device::init. * devices.h: Renumber devices based on more Linux-like major/minor numbers. Add more devices. Declare standard device storage. (device): Declare struct. * dir.cc (opendir): Use new 'build_fh_name' to construct a fhandler_* type. * dtable.cc (dtable::get_debugger_info): Ditto. (cygwin_attach_handle_to_fd): Ditto. (dtable::release): Remove special FH_SOCKET case in favor of generic "need_fixup_before" test. (dtable::init_std_file_from_handle): Use either build_fh_dev or build_fh_name to build standard fhandler. (dtable::build_fh_name): Renamed from dtable::build_fhandler_from_name. Move out of dtable class. Don't accept a path_conv argument. Just build it here and pass it to: (build_fh_pc): Renamed from dtable::build_fhandler. Move out of dtable class. Use intrinsic device type in path_conv to create new fhandler. (build_fh_dev): Renamed from dtable::build_fhandler. Move out of dtable class. Simplify arguments to just take new 'device' type and a name. Just return pointer to fhandler rather than trying to insert into dtable. (dtable::dup_worker): Accommodate above build_fh name changes. (dtable::find_fifo): New (currently broken) function. (handle_to_fn): Use strechr for efficiency. * dtable.h: Reflect above build_fh name changes and argument differences. (fhandler_base *&operator []): Return self rather than copy of self. * fhandler.cc (fhandler_base::operator =): Use pc element to set normalized path. (fhandler_base::set_name): Ditto. (fhandler_base::raw_read): Use method to access name. (fhandler_base::write): Correctly use get_output_handle rather than get_handle. (handler_base::device_access_denied): New function. (fhandler_base::open): Eliminate pc argument and use pc element of fhandler_base throughout. (fhandler_base::fstat): Detect if device is based in filesystem and use fstat_fs to calculate stat, if so. (fhandler_base::fhandler_base): Eliminate handling of file names and, instead, just free appropriate component from pc. (fhandler_base::opendir): Remove path_conv parameter. * fhandler.h: Remove all device flags. (fhandler_base::pc): New element. (fhandler_base::set_name): Change argument to path_conv. (fhandler_base::error): New function. (fhandler_base::exists): New function. (fhandler_base::pc_binmode): New function. (fhandler_base::dev): New function. (fhandler_base::open_fs): New function. (fhandler_base::fstat_fs): New function. (fhandler_base::fstat_by_name): New function. (fhandler_base::fstat_by_handle): New function. (fhandler_base::isfifo): New function. (fhandler_base::is_slow): New function. (fhandler_base::is_auto_device): New function. (fhandler_base::is_fs_special): New function. (fhandler_base::device_access_denied): New function. (fhandler_base::operator DWORD&): New operator. (fhandler_base::get_name): Return normalized path from pc. (fhandler_base::get_win32_name): Return windows path from pc. (fhandler_base::isdevice): Renamed from is_device. (fhandler_base::get_native_name): Return device format. (fhandler_fifo): New class. (fhandler_nodevice): New class. (select_stuff::device_specific): Remove array. (select_stuff::device_specific_pipe): New class element. (select_stuff::device_specific_socket): New class element. (select_stuff::device_specific_serial): New class element. (select_stuff::select_stuff): Initialize new elements. * fhandler_disk_file.cc (fhandler_base::fstat_by_handle): Move to base class from fhandler_disk_file. (fhandler_base::fstat_by_name): Ditto. (fhandler_base::fstat_by_name): Ditto. (fhandler_disk_file::open): Move most functionality into fhandler_base::open_fs. (fhandler_base::open_fs): New function. (fhandler_disk_file::close): Move most functionality into fhandler_base::close_fs. (fhandler_base::close_fs): New function. * fhandler_mem.cc (fhandler_dev_mem::open): Use device name in debugging output. * fhandler_socket.cc (fhandler_socket::set_connect_secret): Copy standard urandom device into appropriate place. (fhandler_socket::accept): Reflect change in fdsock return value. * fhandler_tty.cc: See "throughouts" above. * net.cc: Accommodate fdsock change throughout. (fdsock): Return success or failure, accept fd argument and device argument. * path.cc (symlink_info::major): New element. (symlink_info::minor): New element. (symlink_info::parse_device): Declare new function. (fs_info::update): Accommodate changes in path_conv class. (path_conv::fillin): Ditto. (path_conv::return_and_clear_normalized_path): Eliminate. (path_conv::set_normalized_path): New function. (path_conv::path_conv): Set info in dev element. Use path_conv methods Check for FH_FS rather than FH_BAD to indicate when to fill in filesystem stuff. where appropriate rather than direct access. Use set_normalized_path to set normalized path. (windows_device_names): Eliminate. (get_dev): Ditto. (get_raw_device_number): Ditto. (get_device_number): Ditto. (win32_device_name): Call new device name parser to do most of the heavy lifting. (mount_info::conv_to_win32_path): Fill in dev field as appropriate. (symlink_worker): Handle new device files. (symlink_info::check): Ditto. (symlink_info::parse_device): Define new function. * path.h (executable_states): Move here from fhandler.h. (fs_info): Rename variables to *_storage and create methods for accessing same. (path_conv): Add dev element, remove devn and unit and adjust inline methods to accommodate. (set_normalized_path): Declare new function. * pinfo.cc (_pinfo::commune_recv): Add broken support for handling fifos. (_pinfo::commune_send): Ditto. * pipe.cc (fhandler_pipe::close): check for existence of handle before closing it. (handler_pipe::create): Rename from make_pipe. Change arguments to accept fhandler_pipe array. Accommodate fifos. (pipe): Rework to deal with fhandler_pipe::create changes. (_pipe): Ditto. * select.cc: Use individual device_specific types throughout rather than indexing with obsolete device number. (set_bits): Use is_socket call rather than checking device number. * shared_info.h (CURR_MOUNT_MAGIC): Update. (conv_to_win32_path): Reflect addition of device argument. * syscalls.cc (mknod_worker): New function. (open): Use build_fh_name to build fhandler. (chown_worker): Detect if this is an 'auto' device rather than an on-filesystem device and handle appropriately. (chmod_device): New function. (chmod): Detect if this is an 'auto' device rather than an on-filesystem device and handle appropriately. Use chmod_device to set mode of in-filesystem devices. (stat_worker): Eliminate path_conv argument. Call build_fh_name to construct fhandler. Use fh->error() rather than pc->error to detect errors in fhandler construction. (access_worker): New function pulled from access. Accommodate in-filesystem devices. (access): Use access_worker. (fpathconf): Detect if this is an 'auto' device rather than an on-filesystem device and handle appropriately. (mknod_worker): New function. (mknod32): New function. (chroot): Free normalized path -- assuming it was actually cmalloced. * tty.cc (create_tty_master): Tweak for new device class. (tty::common_init): Ditto. * winsup.h (stat_worker): Remove. (symlink_worker): Declare. * exceptions.cc (set_process_mask): Just call sig_dispatch_pending and don't worry about pending_signals since sig_dispatch_pending should always do the right thing now. (sig_handle): Reorganize SIGCONT handling to more closely conform to SUSv3. * pinfo.h: Move __SIG enum to sigproc.h. (PICOM_FIFO): New enum element. (_pinfo): Remove 'thread2signal' stuff throughout class. (_pinfo::commune_send): Make varargs. (_pinfo::sigtodo): Eliminate. (_pinfo::thread2signal): Ditto. * signal.cc (kill_worker): Eliminate call to setthread2signal. * sigproc.cc (local_sigtodo): Eliminate. (getlocal_sigtodo): Ditto. (sigelem): New class. (pending_signals): New class. (sigqueue): New variable, start of sigqueue linked list. (sigcatch_nonmain): Eliminate. (sigcatch_main): Eliminate. (sigcatch_nosync): Eliminate. (sigcomplete_nonmain): Eliminate. (pending_signals): Eliminate. (sig_clear): Call signal thread to clear pending signals, unless already in signal thread. (sigpending): Call signal thread to get pending signals. (sig_dispatch_pending): Eliminate use of pending_signals and just check sigqueue. (sigproc_terminate): Eliminate all of the obsolete semaphore stuff. Close signal pipe handle. (sig_send): Eliminate all of the obsolete semaphore stuff and use pipe to send signals. (getevent): Eliminate. (pending_signals::add): New function. (pending_signals::del): New function. (pending_signals::next): New function. (wait_sig): Eliminate all of the obsolete semaphore stuff. Use pipe to communicate and maintain a linked list of signals. * sigproc.h: Move __SIG defines here. Add __SIGPENDING. (sig_dispatch_pending): Remove "C" specifier. (sig_handle): Accept a mask argument. * thread.cc: Remove signal handling considerations throughout.
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#include "fhandler.h"
#include "dtable.h"
#include "cygheap.h"
#include "heap.h"
* 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.
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#include "shared_info_magic.h"
#include "registry.h"
#include "cygwin_version.h"
* shared.cc (user_shared_initialize): Fetch potentially changed Cygwin username from /etc/passwd before loading mount table. (shared_info::init_installation_root): New function fetching Cygwin's installation root dir and storing as native NT path in global shared memory. (shared_info::initialize): Call init_installation_root exactly once at first startup. * shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Add installation_root member. (shared_info::init_installation_root): Declare. * grp.cc (pwdgrp::read_group): Call pwdgrp::load with native WCHAR path. * passwd.cc (pwdgrp::read_passwd): Ditto. Avoid recursion. (etc::init): Take POBJECT_ATTRIBUTES instead of path_conv. * path.h (etc::init): Change prototype accordingly. * pwdgrp.h (class pwdgrp): Store path as UNICODE_STRING/PWCHAR instead of as path_conv. (pwdgrp::load): Accommodate prototype. * uinfo.cc (pwdgrp::load): Change argument type from char to wchar_t. Create native NT path here instead of calling path_conv. * mount.cc (find_root_from_cygwin_dll): Drop in favor of global initializaion in shared_info. (mount_info::init): Fetch native NT root dir from cygwin_shared. (mount_info::from_fstab): Expect native NT path and use native NT functions to access file. Convert username part in user fstab path according to special char transformation rules. * path.cc (tfx_chars): Convert slash to backslash. (transform_chars): Implement for path given as PWCHAR. (transform_chars): PUNICODE_STRING version calls PWCHAR version. Remove useless commented code.
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#include "pwdgrp.h"
* fhandler.h (-struct wsa_event): Move to wsa_event.h. Include wsa_event.h instead. * fhandler_socket.cc (NUM_SOCKS): Move to wsa_event.h. (wsa_events): Move from DLL shared area to cygwin_shared shared memory. Accommodate throughout. (socket_serial_number): Ditto. * fhandler_tape.cc (mt): Ditto. (mtinfo_init): Remove. (mt): Define as cygwin_shared->mt. * flock.cc (FLOCK_PARENT_DIR_ACCESS): Remove. (FLOCK_INODE_DIR_ACCESS): Move up in file. (FLOCK_MUTANT_ACCESS): Ditto. (FLOCK_EVENT_ACCESS): Ditto. (get_lock_parent_dir): Remove. (inode_t::inode_t): Call get_shared_parent_dir to get parent dir handle. Add a "flock-" prefix to file's lock directory name for clarity. * mtinfo.h (mtinfo_init): Drop declaration. * net.cc (last_used_bindresvport): Move from DLL shared area to cygwin_shared shared memory. (cygwin_bindresvport_sa): Accommodate above change. * sec_helper.cc (_everyone_sd): Move here from flock.cc. * security.h (SD_MIN_SIZE): Ditto. (everyone_sd): Ditto. * shared.cc (cygwin_shared_area): Remove. (cygwin_shared_h): New handle. (get_shared_parent_dir): New static function. (shared_name): Drop session_local argument. Call get_shared_parent_dir here. Add cygwin-shared subdir to object name. (offsets): Reinstantiate SH_CYGWIN_SHARED member. (open_shared): Revert change from 2007-03-29 for systems supporting SeCreateGlobalPrivilege. (shared_info::initialize): Call mtinfo's initialize here. (memory_init): Drop call to mtinfo_init. * shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Add members for global socket and tape info sharing. (enum shared_locations): Reinstantiate SH_CYGWIN_SHARED. (get_shared_parent_dir): Declare. (shared_name): Drop session_local argument from declaration. * wsa_event.h: New file. Move definitions of NUM_SOCKS and struct wsa_event here.
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#include "ntdll.h"
#include <alloca.h>
* shared.cc (user_shared_initialize): Fetch potentially changed Cygwin username from /etc/passwd before loading mount table. (shared_info::init_installation_root): New function fetching Cygwin's installation root dir and storing as native NT path in global shared memory. (shared_info::initialize): Call init_installation_root exactly once at first startup. * shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Add installation_root member. (shared_info::init_installation_root): Declare. * grp.cc (pwdgrp::read_group): Call pwdgrp::load with native WCHAR path. * passwd.cc (pwdgrp::read_passwd): Ditto. Avoid recursion. (etc::init): Take POBJECT_ATTRIBUTES instead of path_conv. * path.h (etc::init): Change prototype accordingly. * pwdgrp.h (class pwdgrp): Store path as UNICODE_STRING/PWCHAR instead of as path_conv. (pwdgrp::load): Accommodate prototype. * uinfo.cc (pwdgrp::load): Change argument type from char to wchar_t. Create native NT path here instead of calling path_conv. * mount.cc (find_root_from_cygwin_dll): Drop in favor of global initializaion in shared_info. (mount_info::init): Fetch native NT root dir from cygwin_shared. (mount_info::from_fstab): Expect native NT path and use native NT functions to access file. Convert username part in user fstab path according to special char transformation rules. * path.cc (tfx_chars): Convert slash to backslash. (transform_chars): Implement for path given as PWCHAR. (transform_chars): PUNICODE_STRING version calls PWCHAR version. Remove useless commented code.
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#include <wchar.h>
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shared_info NO_COPY *cygwin_shared;
user_info NO_COPY *user_shared;
* fhandler.h (-struct wsa_event): Move to wsa_event.h. Include wsa_event.h instead. * fhandler_socket.cc (NUM_SOCKS): Move to wsa_event.h. (wsa_events): Move from DLL shared area to cygwin_shared shared memory. Accommodate throughout. (socket_serial_number): Ditto. * fhandler_tape.cc (mt): Ditto. (mtinfo_init): Remove. (mt): Define as cygwin_shared->mt. * flock.cc (FLOCK_PARENT_DIR_ACCESS): Remove. (FLOCK_INODE_DIR_ACCESS): Move up in file. (FLOCK_MUTANT_ACCESS): Ditto. (FLOCK_EVENT_ACCESS): Ditto. (get_lock_parent_dir): Remove. (inode_t::inode_t): Call get_shared_parent_dir to get parent dir handle. Add a "flock-" prefix to file's lock directory name for clarity. * mtinfo.h (mtinfo_init): Drop declaration. * net.cc (last_used_bindresvport): Move from DLL shared area to cygwin_shared shared memory. (cygwin_bindresvport_sa): Accommodate above change. * sec_helper.cc (_everyone_sd): Move here from flock.cc. * security.h (SD_MIN_SIZE): Ditto. (everyone_sd): Ditto. * shared.cc (cygwin_shared_area): Remove. (cygwin_shared_h): New handle. (get_shared_parent_dir): New static function. (shared_name): Drop session_local argument. Call get_shared_parent_dir here. Add cygwin-shared subdir to object name. (offsets): Reinstantiate SH_CYGWIN_SHARED member. (open_shared): Revert change from 2007-03-29 for systems supporting SeCreateGlobalPrivilege. (shared_info::initialize): Call mtinfo's initialize here. (memory_init): Drop call to mtinfo_init. * shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Add members for global socket and tape info sharing. (enum shared_locations): Reinstantiate SH_CYGWIN_SHARED. (get_shared_parent_dir): Declare. (shared_name): Drop session_local argument from declaration. * wsa_event.h: New file. Move definitions of NUM_SOCKS and struct wsa_event here.
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HANDLE NO_COPY cygwin_shared_h;
HANDLE NO_COPY cygwin_user_h;
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* fhandler.h (-struct wsa_event): Move to wsa_event.h. Include wsa_event.h instead. * fhandler_socket.cc (NUM_SOCKS): Move to wsa_event.h. (wsa_events): Move from DLL shared area to cygwin_shared shared memory. Accommodate throughout. (socket_serial_number): Ditto. * fhandler_tape.cc (mt): Ditto. (mtinfo_init): Remove. (mt): Define as cygwin_shared->mt. * flock.cc (FLOCK_PARENT_DIR_ACCESS): Remove. (FLOCK_INODE_DIR_ACCESS): Move up in file. (FLOCK_MUTANT_ACCESS): Ditto. (FLOCK_EVENT_ACCESS): Ditto. (get_lock_parent_dir): Remove. (inode_t::inode_t): Call get_shared_parent_dir to get parent dir handle. Add a "flock-" prefix to file's lock directory name for clarity. * mtinfo.h (mtinfo_init): Drop declaration. * net.cc (last_used_bindresvport): Move from DLL shared area to cygwin_shared shared memory. (cygwin_bindresvport_sa): Accommodate above change. * sec_helper.cc (_everyone_sd): Move here from flock.cc. * security.h (SD_MIN_SIZE): Ditto. (everyone_sd): Ditto. * shared.cc (cygwin_shared_area): Remove. (cygwin_shared_h): New handle. (get_shared_parent_dir): New static function. (shared_name): Drop session_local argument. Call get_shared_parent_dir here. Add cygwin-shared subdir to object name. (offsets): Reinstantiate SH_CYGWIN_SHARED member. (open_shared): Revert change from 2007-03-29 for systems supporting SeCreateGlobalPrivilege. (shared_info::initialize): Call mtinfo's initialize here. (memory_init): Drop call to mtinfo_init. * shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Add members for global socket and tape info sharing. (enum shared_locations): Reinstantiate SH_CYGWIN_SHARED. (get_shared_parent_dir): Declare. (shared_name): Drop session_local argument from declaration. * wsa_event.h: New file. Move definitions of NUM_SOCKS and struct wsa_event here.
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/* This function returns a handle to the top-level directory in the global
NT namespace used to implement global objects including shared memory. */
* Makefile.in (DLL_OFILES): Add kernel32.o. * 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.
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extern bool _cygwin_testing;
* fhandler.h (-struct wsa_event): Move to wsa_event.h. Include wsa_event.h instead. * fhandler_socket.cc (NUM_SOCKS): Move to wsa_event.h. (wsa_events): Move from DLL shared area to cygwin_shared shared memory. Accommodate throughout. (socket_serial_number): Ditto. * fhandler_tape.cc (mt): Ditto. (mtinfo_init): Remove. (mt): Define as cygwin_shared->mt. * flock.cc (FLOCK_PARENT_DIR_ACCESS): Remove. (FLOCK_INODE_DIR_ACCESS): Move up in file. (FLOCK_MUTANT_ACCESS): Ditto. (FLOCK_EVENT_ACCESS): Ditto. (get_lock_parent_dir): Remove. (inode_t::inode_t): Call get_shared_parent_dir to get parent dir handle. Add a "flock-" prefix to file's lock directory name for clarity. * mtinfo.h (mtinfo_init): Drop declaration. * net.cc (last_used_bindresvport): Move from DLL shared area to cygwin_shared shared memory. (cygwin_bindresvport_sa): Accommodate above change. * sec_helper.cc (_everyone_sd): Move here from flock.cc. * security.h (SD_MIN_SIZE): Ditto. (everyone_sd): Ditto. * shared.cc (cygwin_shared_area): Remove. (cygwin_shared_h): New handle. (get_shared_parent_dir): New static function. (shared_name): Drop session_local argument. Call get_shared_parent_dir here. Add cygwin-shared subdir to object name. (offsets): Reinstantiate SH_CYGWIN_SHARED member. (open_shared): Revert change from 2007-03-29 for systems supporting SeCreateGlobalPrivilege. (shared_info::initialize): Call mtinfo's initialize here. (memory_init): Drop call to mtinfo_init. * shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Add members for global socket and tape info sharing. (enum shared_locations): Reinstantiate SH_CYGWIN_SHARED. (get_shared_parent_dir): Declare. (shared_name): Drop session_local argument from declaration. * wsa_event.h: New file. Move definitions of NUM_SOCKS and struct wsa_event here.
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HANDLE
get_shared_parent_dir ()
{
static HANDLE dir;
UNICODE_STRING uname;
OBJECT_ATTRIBUTES attr;
NTSTATUS status;
* Makefile.in (DLL_OFILES): Add kernel32.o. * 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.
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* fhandler.h (-struct wsa_event): Move to wsa_event.h. Include wsa_event.h instead. * fhandler_socket.cc (NUM_SOCKS): Move to wsa_event.h. (wsa_events): Move from DLL shared area to cygwin_shared shared memory. Accommodate throughout. (socket_serial_number): Ditto. * fhandler_tape.cc (mt): Ditto. (mtinfo_init): Remove. (mt): Define as cygwin_shared->mt. * flock.cc (FLOCK_PARENT_DIR_ACCESS): Remove. (FLOCK_INODE_DIR_ACCESS): Move up in file. (FLOCK_MUTANT_ACCESS): Ditto. (FLOCK_EVENT_ACCESS): Ditto. (get_lock_parent_dir): Remove. (inode_t::inode_t): Call get_shared_parent_dir to get parent dir handle. Add a "flock-" prefix to file's lock directory name for clarity. * mtinfo.h (mtinfo_init): Drop declaration. * net.cc (last_used_bindresvport): Move from DLL shared area to cygwin_shared shared memory. (cygwin_bindresvport_sa): Accommodate above change. * sec_helper.cc (_everyone_sd): Move here from flock.cc. * security.h (SD_MIN_SIZE): Ditto. (everyone_sd): Ditto. * shared.cc (cygwin_shared_area): Remove. (cygwin_shared_h): New handle. (get_shared_parent_dir): New static function. (shared_name): Drop session_local argument. Call get_shared_parent_dir here. Add cygwin-shared subdir to object name. (offsets): Reinstantiate SH_CYGWIN_SHARED member. (open_shared): Revert change from 2007-03-29 for systems supporting SeCreateGlobalPrivilege. (shared_info::initialize): Call mtinfo's initialize here. (memory_init): Drop call to mtinfo_init. * shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Add members for global socket and tape info sharing. (enum shared_locations): Reinstantiate SH_CYGWIN_SHARED. (get_shared_parent_dir): Declare. (shared_name): Drop session_local argument from declaration. * wsa_event.h: New file. Move definitions of NUM_SOCKS and struct wsa_event here.
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if (!dir)
{
* Makefile.in (DLL_OFILES): Add kernel32.o. * 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.
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WCHAR bnoname[MAX_PATH];
__small_swprintf (bnoname, L"\\BaseNamedObjects\\%s%s",
cygwin_version.shared_id,
_cygwin_testing ? cygwin_version.dll_build_date : "");
RtlInitUnicodeString (&uname, bnoname);
* fhandler.h (-struct wsa_event): Move to wsa_event.h. Include wsa_event.h instead. * fhandler_socket.cc (NUM_SOCKS): Move to wsa_event.h. (wsa_events): Move from DLL shared area to cygwin_shared shared memory. Accommodate throughout. (socket_serial_number): Ditto. * fhandler_tape.cc (mt): Ditto. (mtinfo_init): Remove. (mt): Define as cygwin_shared->mt. * flock.cc (FLOCK_PARENT_DIR_ACCESS): Remove. (FLOCK_INODE_DIR_ACCESS): Move up in file. (FLOCK_MUTANT_ACCESS): Ditto. (FLOCK_EVENT_ACCESS): Ditto. (get_lock_parent_dir): Remove. (inode_t::inode_t): Call get_shared_parent_dir to get parent dir handle. Add a "flock-" prefix to file's lock directory name for clarity. * mtinfo.h (mtinfo_init): Drop declaration. * net.cc (last_used_bindresvport): Move from DLL shared area to cygwin_shared shared memory. (cygwin_bindresvport_sa): Accommodate above change. * sec_helper.cc (_everyone_sd): Move here from flock.cc. * security.h (SD_MIN_SIZE): Ditto. (everyone_sd): Ditto. * shared.cc (cygwin_shared_area): Remove. (cygwin_shared_h): New handle. (get_shared_parent_dir): New static function. (shared_name): Drop session_local argument. Call get_shared_parent_dir here. Add cygwin-shared subdir to object name. (offsets): Reinstantiate SH_CYGWIN_SHARED member. (open_shared): Revert change from 2007-03-29 for systems supporting SeCreateGlobalPrivilege. (shared_info::initialize): Call mtinfo's initialize here. (memory_init): Drop call to mtinfo_init. * shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Add members for global socket and tape info sharing. (enum shared_locations): Reinstantiate SH_CYGWIN_SHARED. (get_shared_parent_dir): Declare. (shared_name): Drop session_local argument from declaration. * wsa_event.h: New file. Move definitions of NUM_SOCKS and struct wsa_event here.
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InitializeObjectAttributes (&attr, &uname, OBJ_INHERIT | OBJ_OPENIF,
NULL, everyone_sd (CYG_SHARED_DIR_ACCESS));
status = NtCreateDirectoryObject (&dir, CYG_SHARED_DIR_ACCESS, &attr);
if (!NT_SUCCESS (status))
* Makefile.in (DLL_OFILES): Add kernel32.o. * 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.
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api_fatal ("NtCreateDirectoryObject(%S): %p", &uname, status);
}
return dir;
}
HANDLE
get_session_parent_dir ()
{
static HANDLE dir;
UNICODE_STRING uname;
OBJECT_ATTRIBUTES attr;
NTSTATUS status;
if (!dir)
{
PROCESS_SESSION_INFORMATION psi;
status = NtQueryInformationProcess (GetCurrentProcess (),
ProcessSessionInformation,
&psi, sizeof psi, NULL);
if (!NT_SUCCESS (status) || psi.SessionId == 0)
dir = get_shared_parent_dir ();
else
{
WCHAR bnoname[MAX_PATH];
__small_swprintf (bnoname,
L"\\Sessions\\BNOLINKS\\%d\\%s%s",
psi.SessionId, cygwin_version.shared_id,
_cygwin_testing ? cygwin_version.dll_build_date : "");
RtlInitUnicodeString (&uname, bnoname);
InitializeObjectAttributes (&attr, &uname, OBJ_INHERIT | OBJ_OPENIF,
NULL, everyone_sd(CYG_SHARED_DIR_ACCESS));
status = NtCreateDirectoryObject (&dir, CYG_SHARED_DIR_ACCESS, &attr);
if (!NT_SUCCESS (status))
api_fatal ("NtCreateDirectoryObject(%S): %p", &uname, status);
}
* fhandler.h (-struct wsa_event): Move to wsa_event.h. Include wsa_event.h instead. * fhandler_socket.cc (NUM_SOCKS): Move to wsa_event.h. (wsa_events): Move from DLL shared area to cygwin_shared shared memory. Accommodate throughout. (socket_serial_number): Ditto. * fhandler_tape.cc (mt): Ditto. (mtinfo_init): Remove. (mt): Define as cygwin_shared->mt. * flock.cc (FLOCK_PARENT_DIR_ACCESS): Remove. (FLOCK_INODE_DIR_ACCESS): Move up in file. (FLOCK_MUTANT_ACCESS): Ditto. (FLOCK_EVENT_ACCESS): Ditto. (get_lock_parent_dir): Remove. (inode_t::inode_t): Call get_shared_parent_dir to get parent dir handle. Add a "flock-" prefix to file's lock directory name for clarity. * mtinfo.h (mtinfo_init): Drop declaration. * net.cc (last_used_bindresvport): Move from DLL shared area to cygwin_shared shared memory. (cygwin_bindresvport_sa): Accommodate above change. * sec_helper.cc (_everyone_sd): Move here from flock.cc. * security.h (SD_MIN_SIZE): Ditto. (everyone_sd): Ditto. * shared.cc (cygwin_shared_area): Remove. (cygwin_shared_h): New handle. (get_shared_parent_dir): New static function. (shared_name): Drop session_local argument. Call get_shared_parent_dir here. Add cygwin-shared subdir to object name. (offsets): Reinstantiate SH_CYGWIN_SHARED member. (open_shared): Revert change from 2007-03-29 for systems supporting SeCreateGlobalPrivilege. (shared_info::initialize): Call mtinfo's initialize here. (memory_init): Drop call to mtinfo_init. * shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Add members for global socket and tape info sharing. (enum shared_locations): Reinstantiate SH_CYGWIN_SHARED. (get_shared_parent_dir): Declare. (shared_name): Drop session_local argument from declaration. * wsa_event.h: New file. Move definitions of NUM_SOCKS and struct wsa_event here.
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}
return dir;
}
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char * __stdcall
* fhandler.h (-struct wsa_event): Move to wsa_event.h. Include wsa_event.h instead. * fhandler_socket.cc (NUM_SOCKS): Move to wsa_event.h. (wsa_events): Move from DLL shared area to cygwin_shared shared memory. Accommodate throughout. (socket_serial_number): Ditto. * fhandler_tape.cc (mt): Ditto. (mtinfo_init): Remove. (mt): Define as cygwin_shared->mt. * flock.cc (FLOCK_PARENT_DIR_ACCESS): Remove. (FLOCK_INODE_DIR_ACCESS): Move up in file. (FLOCK_MUTANT_ACCESS): Ditto. (FLOCK_EVENT_ACCESS): Ditto. (get_lock_parent_dir): Remove. (inode_t::inode_t): Call get_shared_parent_dir to get parent dir handle. Add a "flock-" prefix to file's lock directory name for clarity. * mtinfo.h (mtinfo_init): Drop declaration. * net.cc (last_used_bindresvport): Move from DLL shared area to cygwin_shared shared memory. (cygwin_bindresvport_sa): Accommodate above change. * sec_helper.cc (_everyone_sd): Move here from flock.cc. * security.h (SD_MIN_SIZE): Ditto. (everyone_sd): Ditto. * shared.cc (cygwin_shared_area): Remove. (cygwin_shared_h): New handle. (get_shared_parent_dir): New static function. (shared_name): Drop session_local argument. Call get_shared_parent_dir here. Add cygwin-shared subdir to object name. (offsets): Reinstantiate SH_CYGWIN_SHARED member. (open_shared): Revert change from 2007-03-29 for systems supporting SeCreateGlobalPrivilege. (shared_info::initialize): Call mtinfo's initialize here. (memory_init): Drop call to mtinfo_init. * shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Add members for global socket and tape info sharing. (enum shared_locations): Reinstantiate SH_CYGWIN_SHARED. (get_shared_parent_dir): Declare. (shared_name): Drop session_local argument from declaration. * wsa_event.h: New file. Move definitions of NUM_SOCKS and struct wsa_event here.
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shared_name (char *ret_buf, const char *str, int num)
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{
* Makefile.in (DLL_OFILES): Add kernel32.o. * 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.
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__small_sprintf (ret_buf, "%s.%d", str, num);
return ret_buf;
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}
#define page_const (65535)
#define pround(n) (((size_t) (n) + page_const) & ~page_const)
static ptrdiff_t offsets[] =
{
* fhandler.h (-struct wsa_event): Move to wsa_event.h. Include wsa_event.h instead. * fhandler_socket.cc (NUM_SOCKS): Move to wsa_event.h. (wsa_events): Move from DLL shared area to cygwin_shared shared memory. Accommodate throughout. (socket_serial_number): Ditto. * fhandler_tape.cc (mt): Ditto. (mtinfo_init): Remove. (mt): Define as cygwin_shared->mt. * flock.cc (FLOCK_PARENT_DIR_ACCESS): Remove. (FLOCK_INODE_DIR_ACCESS): Move up in file. (FLOCK_MUTANT_ACCESS): Ditto. (FLOCK_EVENT_ACCESS): Ditto. (get_lock_parent_dir): Remove. (inode_t::inode_t): Call get_shared_parent_dir to get parent dir handle. Add a "flock-" prefix to file's lock directory name for clarity. * mtinfo.h (mtinfo_init): Drop declaration. * net.cc (last_used_bindresvport): Move from DLL shared area to cygwin_shared shared memory. (cygwin_bindresvport_sa): Accommodate above change. * sec_helper.cc (_everyone_sd): Move here from flock.cc. * security.h (SD_MIN_SIZE): Ditto. (everyone_sd): Ditto. * shared.cc (cygwin_shared_area): Remove. (cygwin_shared_h): New handle. (get_shared_parent_dir): New static function. (shared_name): Drop session_local argument. Call get_shared_parent_dir here. Add cygwin-shared subdir to object name. (offsets): Reinstantiate SH_CYGWIN_SHARED member. (open_shared): Revert change from 2007-03-29 for systems supporting SeCreateGlobalPrivilege. (shared_info::initialize): Call mtinfo's initialize here. (memory_init): Drop call to mtinfo_init. * shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Add members for global socket and tape info sharing. (enum shared_locations): Reinstantiate SH_CYGWIN_SHARED. (get_shared_parent_dir): Declare. (shared_name): Drop session_local argument from declaration. * wsa_event.h: New file. Move definitions of NUM_SOCKS and struct wsa_event here.
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- pround (sizeof (shared_info))
- pround (sizeof (user_info))
- pround (sizeof (console_state))
- pround (sizeof (_pinfo)),
- pround (sizeof (user_info))
- pround (sizeof (console_state))
- pround (sizeof (_pinfo)),
- pround (sizeof (console_state))
- pround (sizeof (_pinfo)),
- pround (sizeof (_pinfo)),
0
};
#define off_addr(x) ((void *)((caddr_t) cygwin_hmodule + offsets[x]))
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void * __stdcall
open_shared (const char *name, int n, HANDLE& shared_h, DWORD size,
shared_locations& m, PSECURITY_ATTRIBUTES psa, DWORD access)
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{
void *shared;
void *addr;
if (m == SH_JUSTCREATE || m == SH_JUSTOPEN)
addr = NULL;
else
{
addr = off_addr (m);
VirtualFree (addr, 0, MEM_RELEASE);
}
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char map_buf[MAX_PATH];
char *mapname = NULL;
if (shared_h)
m = SH_JUSTOPEN;
else
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{
if (name)
mapname = shared_name (map_buf, name, n);
if (m == SH_JUSTOPEN)
* fhandler.h (-struct wsa_event): Move to wsa_event.h. Include wsa_event.h instead. * fhandler_socket.cc (NUM_SOCKS): Move to wsa_event.h. (wsa_events): Move from DLL shared area to cygwin_shared shared memory. Accommodate throughout. (socket_serial_number): Ditto. * fhandler_tape.cc (mt): Ditto. (mtinfo_init): Remove. (mt): Define as cygwin_shared->mt. * flock.cc (FLOCK_PARENT_DIR_ACCESS): Remove. (FLOCK_INODE_DIR_ACCESS): Move up in file. (FLOCK_MUTANT_ACCESS): Ditto. (FLOCK_EVENT_ACCESS): Ditto. (get_lock_parent_dir): Remove. (inode_t::inode_t): Call get_shared_parent_dir to get parent dir handle. Add a "flock-" prefix to file's lock directory name for clarity. * mtinfo.h (mtinfo_init): Drop declaration. * net.cc (last_used_bindresvport): Move from DLL shared area to cygwin_shared shared memory. (cygwin_bindresvport_sa): Accommodate above change. * sec_helper.cc (_everyone_sd): Move here from flock.cc. * security.h (SD_MIN_SIZE): Ditto. (everyone_sd): Ditto. * shared.cc (cygwin_shared_area): Remove. (cygwin_shared_h): New handle. (get_shared_parent_dir): New static function. (shared_name): Drop session_local argument. Call get_shared_parent_dir here. Add cygwin-shared subdir to object name. (offsets): Reinstantiate SH_CYGWIN_SHARED member. (open_shared): Revert change from 2007-03-29 for systems supporting SeCreateGlobalPrivilege. (shared_info::initialize): Call mtinfo's initialize here. (memory_init): Drop call to mtinfo_init. * shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Add members for global socket and tape info sharing. (enum shared_locations): Reinstantiate SH_CYGWIN_SHARED. (get_shared_parent_dir): Declare. (shared_name): Drop session_local argument from declaration. * wsa_event.h: New file. Move definitions of NUM_SOCKS and struct wsa_event here.
2008-04-18 22:13:37 +02:00
shared_h = OpenFileMapping (access, FALSE, mapname);
else
{
shared_h = CreateFileMapping (INVALID_HANDLE_VALUE, psa,
PAGE_READWRITE, 0, size, mapname);
* fhandler.h (-struct wsa_event): Move to wsa_event.h. Include wsa_event.h instead. * fhandler_socket.cc (NUM_SOCKS): Move to wsa_event.h. (wsa_events): Move from DLL shared area to cygwin_shared shared memory. Accommodate throughout. (socket_serial_number): Ditto. * fhandler_tape.cc (mt): Ditto. (mtinfo_init): Remove. (mt): Define as cygwin_shared->mt. * flock.cc (FLOCK_PARENT_DIR_ACCESS): Remove. (FLOCK_INODE_DIR_ACCESS): Move up in file. (FLOCK_MUTANT_ACCESS): Ditto. (FLOCK_EVENT_ACCESS): Ditto. (get_lock_parent_dir): Remove. (inode_t::inode_t): Call get_shared_parent_dir to get parent dir handle. Add a "flock-" prefix to file's lock directory name for clarity. * mtinfo.h (mtinfo_init): Drop declaration. * net.cc (last_used_bindresvport): Move from DLL shared area to cygwin_shared shared memory. (cygwin_bindresvport_sa): Accommodate above change. * sec_helper.cc (_everyone_sd): Move here from flock.cc. * security.h (SD_MIN_SIZE): Ditto. (everyone_sd): Ditto. * shared.cc (cygwin_shared_area): Remove. (cygwin_shared_h): New handle. (get_shared_parent_dir): New static function. (shared_name): Drop session_local argument. Call get_shared_parent_dir here. Add cygwin-shared subdir to object name. (offsets): Reinstantiate SH_CYGWIN_SHARED member. (open_shared): Revert change from 2007-03-29 for systems supporting SeCreateGlobalPrivilege. (shared_info::initialize): Call mtinfo's initialize here. (memory_init): Drop call to mtinfo_init. * shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Add members for global socket and tape info sharing. (enum shared_locations): Reinstantiate SH_CYGWIN_SHARED. (get_shared_parent_dir): Declare. (shared_name): Drop session_local argument from declaration. * wsa_event.h: New file. Move definitions of NUM_SOCKS and struct wsa_event here.
2008-04-18 22:13:37 +02:00
if (GetLastError () == ERROR_ALREADY_EXISTS)
m = SH_JUSTOPEN;
}
if (shared_h)
/* ok! */;
else if (m != SH_JUSTOPEN)
api_fatal ("CreateFileMapping %s, %E. Terminating.", mapname);
else
return NULL;
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}
shared = (shared_info *)
MapViewOfFileEx (shared_h, access, 0, 0, 0, addr);
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if (!shared && addr)
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{
shared = (shared_info *) MapViewOfFileEx (shared_h,
FILE_MAP_READ|FILE_MAP_WRITE,
0, 0, 0, NULL);
#ifdef DEBUGGING
system_printf ("relocating shared object %s(%d) from %p to %p", name, n, addr, shared);
#endif
offsets[0] = 0;
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}
if (!shared)
api_fatal ("MapViewOfFileEx '%s'(%p), %E. Terminating.", mapname, shared_h);
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if (m == SH_CYGWIN_SHARED && offsets[0])
{
ptrdiff_t delta = (caddr_t) shared - (caddr_t) off_addr (0);
offsets[0] = (caddr_t) shared - (caddr_t) cygwin_hmodule;
for (int i = SH_USER_SHARED + 1; i < SH_TOTAL_SIZE; i++)
{
unsigned size = offsets[i + 1] - offsets[i];
offsets[i] += delta;
if (!VirtualAlloc (off_addr (i), size, MEM_RESERVE, PAGE_NOACCESS))
continue; /* oh well */
}
offsets[SH_TOTAL_SIZE] += delta;
}
debug_printf ("name %s, n %d, shared %p (wanted %p), h %p", mapname, n, shared, addr, shared_h);
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return shared;
}
/* Second half of user shared initialization: Initialize content. */
void
user_shared_initialize ()
{
DWORD sversion = (DWORD) InterlockedExchange ((LONG *) &user_shared->version, USER_VERSION_MAGIC);
/* Wait for initialization of the Cygwin per-user shared, if necessary */
if (!sversion)
{
cygpsid sid (cygheap->user.sid ());
struct passwd *pw = internal_getpwsid (sid);
/* Correct the user name with what's defined in /etc/passwd before
loading the user fstab file. */
if (pw)
cygheap->user.set_name (pw->pw_name);
user_shared->mountinfo.init (); /* Initialize the mount table. */
user_shared->cb = sizeof (*user_shared);
}
else
{
while (!user_shared->cb)
low_priority_sleep (0); // Should be hit only very very rarely
if (user_shared->version != sversion)
multiple_cygwin_problem ("user shared memory version", user_shared->version, sversion);
else if (user_shared->cb != sizeof (*user_shared))
multiple_cygwin_problem ("user shared memory size", user_shared->cb, sizeof (*user_shared));
}
}
/* First half of user shared initialization: Create shared mem region. */
void
user_shared_create (bool reinit)
{
char name[UNLEN + 1] = ""; /* Large enough for SID */
if (reinit)
{
if (!UnmapViewOfFile (user_shared))
debug_printf("UnmapViewOfFile %E");
if (!ForceCloseHandle (cygwin_user_h))
debug_printf("CloseHandle %E");
cygwin_user_h = NULL;
}
if (!cygwin_user_h)
cygheap->user.get_windows_id (name);
shared_locations sh_user_shared = SH_USER_SHARED;
user_shared = (user_info *) open_shared (name, USER_VERSION,
cygwin_user_h, sizeof (user_info),
sh_user_shared, &sec_none);
debug_printf ("opening user shared for '%s' at %p", name, user_shared);
ProtectHandleINH (cygwin_user_h);
debug_printf ("user shared version %x", user_shared->version);
if (reinit)
user_shared_initialize ();
}
void __stdcall
shared_destroy ()
{
ForceCloseHandle (cygwin_shared_h);
UnmapViewOfFile (cygwin_shared);
ForceCloseHandle (cygwin_user_h);
UnmapViewOfFile (user_shared);
}
* shared.cc (user_shared_initialize): Fetch potentially changed Cygwin username from /etc/passwd before loading mount table. (shared_info::init_installation_root): New function fetching Cygwin's installation root dir and storing as native NT path in global shared memory. (shared_info::initialize): Call init_installation_root exactly once at first startup. * shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Add installation_root member. (shared_info::init_installation_root): Declare. * grp.cc (pwdgrp::read_group): Call pwdgrp::load with native WCHAR path. * passwd.cc (pwdgrp::read_passwd): Ditto. Avoid recursion. (etc::init): Take POBJECT_ATTRIBUTES instead of path_conv. * path.h (etc::init): Change prototype accordingly. * pwdgrp.h (class pwdgrp): Store path as UNICODE_STRING/PWCHAR instead of as path_conv. (pwdgrp::load): Accommodate prototype. * uinfo.cc (pwdgrp::load): Change argument type from char to wchar_t. Create native NT path here instead of calling path_conv. * mount.cc (find_root_from_cygwin_dll): Drop in favor of global initializaion in shared_info. (mount_info::init): Fetch native NT root dir from cygwin_shared. (mount_info::from_fstab): Expect native NT path and use native NT functions to access file. Convert username part in user fstab path according to special char transformation rules. * path.cc (tfx_chars): Convert slash to backslash. (transform_chars): Implement for path given as PWCHAR. (transform_chars): PUNICODE_STRING version calls PWCHAR version. Remove useless commented code.
2008-07-24 20:25:52 +02:00
/* Use absolute path of cygwin1.dll to derive the Win32 dir which
is our installation root. Note that we can't handle Cygwin installation
root dirs of more than 4K path length. I assume that's ok... */
void
shared_info::init_installation_root ()
{
if (!GetModuleFileNameW (cygwin_hmodule, installation_root, PATH_MAX))
api_fatal ("Can't initialize Cygwin installation root dir.\n"
"GetModuleFileNameW(%p, %p, %u), %E",
cygwin_hmodule, installation_root, PATH_MAX);
PWCHAR p = installation_root;
if (wcsncmp (p, L"\\\\?\\", 4)) /* No long path prefix. */
{
if (!wcsncasecmp (p, L"\\\\", 2)) /* UNC */
{
p = wcpcpy (p, L"\\??\\UN");
GetModuleFileNameW (cygwin_hmodule, p, PATH_MAX - 6);
*p = L'C';
}
else
{
p = wcpcpy (p, L"\\??\\");
GetModuleFileNameW (cygwin_hmodule, p, PATH_MAX - 4);
}
}
installation_root[1] = L'?';
PWCHAR w = wcsrchr (installation_root, L'\\');
if (w)
{
*w = L'\0';
w = wcsrchr (installation_root, L'\\');
}
if (!w)
api_fatal ("Can't initialize Cygwin installation root dir.\n"
"Invalid DLL path");
*w = L'\0';
}
Add case-sensitivity. Unconditionally handle mount points case-sensitive. Unconditionally handle virtual paths case-sensitive. Unconditionally handle registry paths case-insensitive. Otherwise, accommodate case-sensitivity of given path throughout. * cygheap.cc (cygheap_root::set): Get additional caseinsensitive parameter and store it. * cygheap.h (struct cygheap_root_mount_info): Add member caseinsensitive. * dlfcn.cc (get_full_path_of_dll): Drop PC_NOFULL parameter from call to path_conv::check. * environ.cc (pcheck_case): Remove. (check_case_init): Remove. (known): Drop "check_case" option. * exceptions.cc (open_stackdumpfile): Add comment. * fhandler.cc (fhandler_base::get_default_fmode): Call pathmatch instead of strcasematch. * fhandler_disk_file.cc: Accommodate case-sensitivity of given path throughout. (__DIR_mounts::check_mount): Unconditionally check virtual paths case-sensitive. (fhandler_disk_file::link): Drop case clash handling. (fhandler_disk_file::open): Ditto. (fhandler_disk_file::readdir_helper): Drop managed mount code. * mount.cc: Remove managed mount code and datastructures. (struct opt): Remove "managed" option. Add "posix=0" and "posix=1" options. (fillout_mntent): Remove "managed" output. Add "posix" output. * path.cc (struct symlink_info): Remove case_clash member and case_check method. (pcheck_case): Remove. (path_prefix_p): Take additional bool parameter "caseinsensitive". (pathnmatch): Ditto. (pathmatch): Ditto. (mkrelpath): Ditto. (fs_info::update): Set caseinsensitive flag according to file system name and FILE_CASE_SENSITIVE_SEARCH flag. Add comment. (tfx_chars_managed): Remove. (transform_chars): Drop "managed" parameter. Always use tfx_chars. (get_nt_native_path): Drop "managed" parameter. Make sure drive letters are always upper case. (getfileattr): Change second parameter to denote caseinsensitivity. (path_conv::check): Initialize caseinsensitive to OBJ_CASE_INSENSITIVE. Set caseinsensitive according to global obcaseinsensitive flag, file system case sensitivity and MOUNT_NOPOSIX mount flag. Drop case_clash and all the related code. (symlink_worker): Drop case clash handling. (symlink_info::set): Drop setting case_clash. (symlink_info::case_check): Remove. (cwdstuff::set): Add comment. (etc::init): Take path_conv instead of PUNICODE_STRING as parameter to allow case sensitivity. * path.h (enum pathconv_arg): Drop PC_SYM_IGNORE. (enum case_checking): Remove. (enum path_types): Drop PATH_ENC, add PATH_NOPOSIX flag. (struct fs_info): Add caseinsensitive flag and accessor methods. (class path_conv): Add caseinsensitive member and define objcaseinsensitive method. Drop case_clash member and isencoded method. (pathmatch): Change prototype according to above change. (pathnmatch): Ditto. (path_prefix_p): Ditto. (get_nt_native_path): Ditto. (class etc): Ditto. (fnunmunge): Remove prototype. * shared.cc (shared_info::init_obcaseinsensitive): Initialize obcaseinsensitive flag from obcaseinsensitive registry value. (shared_info::initialize): Call init_obcaseinsensitive here by the first process creating the shared memory. * shared_info.h (mount_item::fnmunge): Remove. (shared_info::obcaseinsensitive): Rename from obcaseinsensitivity. (shared_info::init_obcaseinsensitive): Declare. * syscalls.cc (try_to_bin): Add comment. * include/sys/mount.h (MOUNT_ENC): Remove flag. (MOUNT_NOPOSIX): Add flag.
2008-07-16 22:20:45 +02:00
/* Initialize obcaseinsensitive. Default to case insensitive on pre-XP. */
void
shared_info::init_obcaseinsensitive ()
{
HKEY key;
DWORD size = sizeof (DWORD);
obcaseinsensitive = 1;
if (RegOpenKeyEx (HKEY_LOCAL_MACHINE,
"SYSTEM\\CurrentControlSet\\Control\\Session Manager\\kernel",
0, KEY_READ, &key) == ERROR_SUCCESS)
{
RegQueryValueEx (key, "obcaseinsensitive", NULL, NULL,
(LPBYTE) &obcaseinsensitive, &size);
RegCloseKey (key);
}
debug_printf ("obcaseinsensitive set to %d", obcaseinsensitive);
}
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void
shared_info::initialize ()
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{
DWORD sversion = (DWORD) InterlockedExchange ((LONG *) &version, SHARED_VERSION_MAGIC);
if (sversion)
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{
if (sversion != SHARED_VERSION_MAGIC)
{
InterlockedExchange ((LONG *) &version, sversion);
multiple_cygwin_problem ("system shared memory version", sversion, SHARED_VERSION_MAGIC);
}
while (!cb)
low_priority_sleep (0); // Should be hit only very very rarely
}
heap_init ();
get_session_parent_dir (); /* Create session dir if first process. */
if (!sversion)
{
* shared.cc (user_shared_initialize): Fetch potentially changed Cygwin username from /etc/passwd before loading mount table. (shared_info::init_installation_root): New function fetching Cygwin's installation root dir and storing as native NT path in global shared memory. (shared_info::initialize): Call init_installation_root exactly once at first startup. * shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Add installation_root member. (shared_info::init_installation_root): Declare. * grp.cc (pwdgrp::read_group): Call pwdgrp::load with native WCHAR path. * passwd.cc (pwdgrp::read_passwd): Ditto. Avoid recursion. (etc::init): Take POBJECT_ATTRIBUTES instead of path_conv. * path.h (etc::init): Change prototype accordingly. * pwdgrp.h (class pwdgrp): Store path as UNICODE_STRING/PWCHAR instead of as path_conv. (pwdgrp::load): Accommodate prototype. * uinfo.cc (pwdgrp::load): Change argument type from char to wchar_t. Create native NT path here instead of calling path_conv. * mount.cc (find_root_from_cygwin_dll): Drop in favor of global initializaion in shared_info. (mount_info::init): Fetch native NT root dir from cygwin_shared. (mount_info::from_fstab): Expect native NT path and use native NT functions to access file. Convert username part in user fstab path according to special char transformation rules. * path.cc (tfx_chars): Convert slash to backslash. (transform_chars): Implement for path given as PWCHAR. (transform_chars): PUNICODE_STRING version calls PWCHAR version. Remove useless commented code.
2008-07-24 20:25:52 +02:00
init_installation_root ();/* Initialize installation root dir. */
init_obcaseinsensitive ();/* Initialize obcaseinsensitive. */
tty.init (); /* Initialize tty table. */
mt.initialize (); /* Initialize shared tape information. */
cb = sizeof (*this); /* Do last, after all shared memory initialization */
}
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if (cb != SHARED_INFO_CB)
system_printf ("size of shared memory region changed from %u to %u",
SHARED_INFO_CB, cb);
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}
void __stdcall
memory_init ()
2000-02-17 20:38:33 +01:00
{
getpagesize ();
/* Initialize the Cygwin heap, if necessary */
if (!cygheap)
{
cygheap_init ();
cygheap->user.init ();
}
* fhandler.h (-struct wsa_event): Move to wsa_event.h. Include wsa_event.h instead. * fhandler_socket.cc (NUM_SOCKS): Move to wsa_event.h. (wsa_events): Move from DLL shared area to cygwin_shared shared memory. Accommodate throughout. (socket_serial_number): Ditto. * fhandler_tape.cc (mt): Ditto. (mtinfo_init): Remove. (mt): Define as cygwin_shared->mt. * flock.cc (FLOCK_PARENT_DIR_ACCESS): Remove. (FLOCK_INODE_DIR_ACCESS): Move up in file. (FLOCK_MUTANT_ACCESS): Ditto. (FLOCK_EVENT_ACCESS): Ditto. (get_lock_parent_dir): Remove. (inode_t::inode_t): Call get_shared_parent_dir to get parent dir handle. Add a "flock-" prefix to file's lock directory name for clarity. * mtinfo.h (mtinfo_init): Drop declaration. * net.cc (last_used_bindresvport): Move from DLL shared area to cygwin_shared shared memory. (cygwin_bindresvport_sa): Accommodate above change. * sec_helper.cc (_everyone_sd): Move here from flock.cc. * security.h (SD_MIN_SIZE): Ditto. (everyone_sd): Ditto. * shared.cc (cygwin_shared_area): Remove. (cygwin_shared_h): New handle. (get_shared_parent_dir): New static function. (shared_name): Drop session_local argument. Call get_shared_parent_dir here. Add cygwin-shared subdir to object name. (offsets): Reinstantiate SH_CYGWIN_SHARED member. (open_shared): Revert change from 2007-03-29 for systems supporting SeCreateGlobalPrivilege. (shared_info::initialize): Call mtinfo's initialize here. (memory_init): Drop call to mtinfo_init. * shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Add members for global socket and tape info sharing. (enum shared_locations): Reinstantiate SH_CYGWIN_SHARED. (get_shared_parent_dir): Declare. (shared_name): Drop session_local argument from declaration. * wsa_event.h: New file. Move definitions of NUM_SOCKS and struct wsa_event here.
2008-04-18 22:13:37 +02:00
/* Initialize general shared memory */
shared_locations sh_cygwin_shared;
* fhandler.h (-struct wsa_event): Move to wsa_event.h. Include wsa_event.h instead. * fhandler_socket.cc (NUM_SOCKS): Move to wsa_event.h. (wsa_events): Move from DLL shared area to cygwin_shared shared memory. Accommodate throughout. (socket_serial_number): Ditto. * fhandler_tape.cc (mt): Ditto. (mtinfo_init): Remove. (mt): Define as cygwin_shared->mt. * flock.cc (FLOCK_PARENT_DIR_ACCESS): Remove. (FLOCK_INODE_DIR_ACCESS): Move up in file. (FLOCK_MUTANT_ACCESS): Ditto. (FLOCK_EVENT_ACCESS): Ditto. (get_lock_parent_dir): Remove. (inode_t::inode_t): Call get_shared_parent_dir to get parent dir handle. Add a "flock-" prefix to file's lock directory name for clarity. * mtinfo.h (mtinfo_init): Drop declaration. * net.cc (last_used_bindresvport): Move from DLL shared area to cygwin_shared shared memory. (cygwin_bindresvport_sa): Accommodate above change. * sec_helper.cc (_everyone_sd): Move here from flock.cc. * security.h (SD_MIN_SIZE): Ditto. (everyone_sd): Ditto. * shared.cc (cygwin_shared_area): Remove. (cygwin_shared_h): New handle. (get_shared_parent_dir): New static function. (shared_name): Drop session_local argument. Call get_shared_parent_dir here. Add cygwin-shared subdir to object name. (offsets): Reinstantiate SH_CYGWIN_SHARED member. (open_shared): Revert change from 2007-03-29 for systems supporting SeCreateGlobalPrivilege. (shared_info::initialize): Call mtinfo's initialize here. (memory_init): Drop call to mtinfo_init. * shared_info.h (SHARED_INFO_CB): Accommodate change to shared_info. (CURR_SHARED_MAGIC): Ditto. (class shared_info): Add members for global socket and tape info sharing. (enum shared_locations): Reinstantiate SH_CYGWIN_SHARED. (get_shared_parent_dir): Declare. (shared_name): Drop session_local argument from declaration. * wsa_event.h: New file. Move definitions of NUM_SOCKS and struct wsa_event here.
2008-04-18 22:13:37 +02:00
cygwin_shared = (shared_info *) open_shared ("shared",
CYGWIN_VERSION_SHARED_DATA,
cygwin_shared_h,
sizeof (*cygwin_shared),
sh_cygwin_shared = SH_CYGWIN_SHARED);
cygwin_shared->initialize ();
user_shared_create (false);
2000-02-17 20:38:33 +01:00
}
unsigned
shared_info::heap_slop_size ()
{
if (!heap_slop_inited)
{
/* Fetch from registry, first user then local machine. */
for (int i = 0; i < 2; i++)
{
reg_key reg (i, KEY_READ, NULL);
if ((heap_slop = reg.get_int ("heap_slop_in_mb", 0)))
break;
heap_slop = wincap.heapslop ();
}
heap_slop <<= 20;
heap_slop_inited = true;
}
return heap_slop;
}
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unsigned
shared_info::heap_chunk_size ()
{
if (!heap_chunk)
{
/* Fetch from registry, first user then local machine. */
for (int i = 0; i < 2; i++)
{
reg_key reg (i, KEY_READ, NULL);
/* Note that reserving a huge amount of heap space does not result in
the use of swap since we are not committing it. */
/* FIXME: We should not be restricted to a fixed size heap no matter
what the fixed size is. */
if ((heap_chunk = reg.get_int ("heap_chunk_in_mb", 0)))
break;
heap_chunk = 384; /* Default */
}
if (heap_chunk < 4)
heap_chunk = 4 * 1024 * 1024;
else
heap_chunk <<= 20;
if (!heap_chunk)
heap_chunk = 384 * 1024 * 1024;
}
return heap_chunk;
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}