newlib/winsup/cygwin/poll.cc

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/* poll.cc. Implements poll(2) via usage of select(2) call.
Copyright 2000, 2001, 2002 Red Hat, Inc.
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. */
#define __INSIDE_CYGWIN_NET__
#define FD_SETSIZE 16384 // lots of fds
#include "winsup.h"
#include <sys/time.h>
#include <sys/poll.h>
#include <sys/socket.h>
#include <stdlib.h>
#define USE_SYS_TYPES_FD_SET
#include <winsock2.h>
#include "security.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.
2001-10-01 06:10:07 +02:00
#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 "cygerrno.h"
#include "cygheap.h"
#include "sigproc.h"
extern "C" int
poll (struct pollfd *fds, unsigned int nfds, int timeout)
{
int max_fd = 0;
fd_set *read_fds, *write_fds, *except_fds;
struct timeval tv = { timeout / 1000, (timeout % 1000) * 1000 };
sigframe thisframe (mainthread);
for (unsigned int i = 0; i < nfds; ++i)
if (fds[i].fd > max_fd)
max_fd = fds[i].fd;
size_t fds_size = howmany (max_fd + 1, NFDBITS) * sizeof (fd_mask);
read_fds = (fd_set *) alloca (fds_size);
write_fds = (fd_set *) alloca (fds_size);
except_fds = (fd_set *) alloca (fds_size);
if (!read_fds || !write_fds || !except_fds)
{
set_errno (ENOMEM);
return -1;
}
memset (read_fds, 0, fds_size);
memset (write_fds, 0, fds_size);
memset (except_fds, 0, fds_size);
* autoload.cc (LoadFuncEx): Define via new LoadFuncEx2 macro. (LoadFuncEx2): Adapted from LoadFuncEx. Provides control of return value for nonexistent function. (NtQueryObject): Declare. (IsDebuggerPresent): Declare via LoadFuncEx2 and always return true if not available. * debug.h (being_debugged): Just rely on IsDebuggerPresent return value. * dtable.cc (handle_to_fn): New function. (dtable::init_std_file_from_handle): Attempt to derive std handle's name via handle_to_fn. (dtable::build_fhandler_from_name): Fill in what we can in path_conv structure when given a handle and path doesn't exist. * fhandler.cc (fhandler_base::open): Don't set the file pointer here. Use pc->exists () to determine if file exists rather than calling GetFileAttributes again. * fhandler.h (fhandler_base::exec_state_isknown): New method. (fhandler_base::fstat_helper): Add extra arguments to declaration. (fhandler_base::fstat_by_handle): Declare new method. (fhandler_base::fstat_by_name): Declare new method. * fhandler_disk_file (num_entries): Make __stdcall. (fhandler_base::fstat_by_handle): Define new method. (fhandler_base::fstat_by_name): Define new method. (fhandler_base:fstat): Call fstat_by_{handle,name} as appropriate. (fhandler_disk_file::fstat_helper): Accept extra arguments for filling out stat structure. Move handle or name specific stuff to new methods above. (fhandler_disk_file::open): Use real_path->exists rather than calling GetFileAttributes again. * ntdll.h (FILE_NAME_INFORMATION): Define new structure. (OBJECT_INFORMATION_CLASS): Partially define new enum. (OBJECT_NAME_INFORMATION): Define new structure. (NtQueryInformationFile): New declaration. (NtQueryObject): New declaration. * path.cc (path_conv::fillin): Define new method. * path.h (path_conv::fillin): Declare new method. (path_conv::drive_thpe): Rename from 'get_drive_type'. (path_conv::volser): Declare new method. (path_conv::volname): Declare new method. (path_conv::root_dir): Declare new method. * syscalls.cc (fstat64): Send real path_conv to fstat as second argument.
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int invalid_fds = 0;
for (unsigned int i = 0; i < nfds; ++i)
{
fds[i].revents = 0;
if (!cygheap->fdtab.not_open (fds[i].fd))
* autoload.cc (LoadFuncEx): Define via new LoadFuncEx2 macro. (LoadFuncEx2): Adapted from LoadFuncEx. Provides control of return value for nonexistent function. (NtQueryObject): Declare. (IsDebuggerPresent): Declare via LoadFuncEx2 and always return true if not available. * debug.h (being_debugged): Just rely on IsDebuggerPresent return value. * dtable.cc (handle_to_fn): New function. (dtable::init_std_file_from_handle): Attempt to derive std handle's name via handle_to_fn. (dtable::build_fhandler_from_name): Fill in what we can in path_conv structure when given a handle and path doesn't exist. * fhandler.cc (fhandler_base::open): Don't set the file pointer here. Use pc->exists () to determine if file exists rather than calling GetFileAttributes again. * fhandler.h (fhandler_base::exec_state_isknown): New method. (fhandler_base::fstat_helper): Add extra arguments to declaration. (fhandler_base::fstat_by_handle): Declare new method. (fhandler_base::fstat_by_name): Declare new method. * fhandler_disk_file (num_entries): Make __stdcall. (fhandler_base::fstat_by_handle): Define new method. (fhandler_base::fstat_by_name): Define new method. (fhandler_base:fstat): Call fstat_by_{handle,name} as appropriate. (fhandler_disk_file::fstat_helper): Accept extra arguments for filling out stat structure. Move handle or name specific stuff to new methods above. (fhandler_disk_file::open): Use real_path->exists rather than calling GetFileAttributes again. * ntdll.h (FILE_NAME_INFORMATION): Define new structure. (OBJECT_INFORMATION_CLASS): Partially define new enum. (OBJECT_NAME_INFORMATION): Define new structure. (NtQueryInformationFile): New declaration. (NtQueryObject): New declaration. * path.cc (path_conv::fillin): Define new method. * path.h (path_conv::fillin): Declare new method. (path_conv::drive_thpe): Rename from 'get_drive_type'. (path_conv::volser): Declare new method. (path_conv::volname): Declare new method. (path_conv::root_dir): Declare new method. * syscalls.cc (fstat64): Send real path_conv to fstat as second argument.
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{
if (fds[i].events & POLLIN)
FD_SET(fds[i].fd, read_fds);
if (fds[i].events & POLLOUT)
FD_SET(fds[i].fd, write_fds);
if (fds[i].events & POLLPRI)
FD_SET(fds[i].fd, except_fds);
}
else if (fds[i].fd >= 0)
{
++invalid_fds;
fds[i].revents = POLLNVAL;
}
}
* autoload.cc (LoadFuncEx): Define via new LoadFuncEx2 macro. (LoadFuncEx2): Adapted from LoadFuncEx. Provides control of return value for nonexistent function. (NtQueryObject): Declare. (IsDebuggerPresent): Declare via LoadFuncEx2 and always return true if not available. * debug.h (being_debugged): Just rely on IsDebuggerPresent return value. * dtable.cc (handle_to_fn): New function. (dtable::init_std_file_from_handle): Attempt to derive std handle's name via handle_to_fn. (dtable::build_fhandler_from_name): Fill in what we can in path_conv structure when given a handle and path doesn't exist. * fhandler.cc (fhandler_base::open): Don't set the file pointer here. Use pc->exists () to determine if file exists rather than calling GetFileAttributes again. * fhandler.h (fhandler_base::exec_state_isknown): New method. (fhandler_base::fstat_helper): Add extra arguments to declaration. (fhandler_base::fstat_by_handle): Declare new method. (fhandler_base::fstat_by_name): Declare new method. * fhandler_disk_file (num_entries): Make __stdcall. (fhandler_base::fstat_by_handle): Define new method. (fhandler_base::fstat_by_name): Define new method. (fhandler_base:fstat): Call fstat_by_{handle,name} as appropriate. (fhandler_disk_file::fstat_helper): Accept extra arguments for filling out stat structure. Move handle or name specific stuff to new methods above. (fhandler_disk_file::open): Use real_path->exists rather than calling GetFileAttributes again. * ntdll.h (FILE_NAME_INFORMATION): Define new structure. (OBJECT_INFORMATION_CLASS): Partially define new enum. (OBJECT_NAME_INFORMATION): Define new structure. (NtQueryInformationFile): New declaration. (NtQueryObject): New declaration. * path.cc (path_conv::fillin): Define new method. * path.h (path_conv::fillin): Declare new method. (path_conv::drive_thpe): Rename from 'get_drive_type'. (path_conv::volser): Declare new method. (path_conv::volname): Declare new method. (path_conv::root_dir): Declare new method. * syscalls.cc (fstat64): Send real path_conv to fstat as second argument.
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if (invalid_fds)
return invalid_fds;
* autoload.cc (LoadFuncEx): Define via new LoadFuncEx2 macro. (LoadFuncEx2): Adapted from LoadFuncEx. Provides control of return value for nonexistent function. (NtQueryObject): Declare. (IsDebuggerPresent): Declare via LoadFuncEx2 and always return true if not available. * debug.h (being_debugged): Just rely on IsDebuggerPresent return value. * dtable.cc (handle_to_fn): New function. (dtable::init_std_file_from_handle): Attempt to derive std handle's name via handle_to_fn. (dtable::build_fhandler_from_name): Fill in what we can in path_conv structure when given a handle and path doesn't exist. * fhandler.cc (fhandler_base::open): Don't set the file pointer here. Use pc->exists () to determine if file exists rather than calling GetFileAttributes again. * fhandler.h (fhandler_base::exec_state_isknown): New method. (fhandler_base::fstat_helper): Add extra arguments to declaration. (fhandler_base::fstat_by_handle): Declare new method. (fhandler_base::fstat_by_name): Declare new method. * fhandler_disk_file (num_entries): Make __stdcall. (fhandler_base::fstat_by_handle): Define new method. (fhandler_base::fstat_by_name): Define new method. (fhandler_base:fstat): Call fstat_by_{handle,name} as appropriate. (fhandler_disk_file::fstat_helper): Accept extra arguments for filling out stat structure. Move handle or name specific stuff to new methods above. (fhandler_disk_file::open): Use real_path->exists rather than calling GetFileAttributes again. * ntdll.h (FILE_NAME_INFORMATION): Define new structure. (OBJECT_INFORMATION_CLASS): Partially define new enum. (OBJECT_NAME_INFORMATION): Define new structure. (NtQueryInformationFile): New declaration. (NtQueryObject): New declaration. * path.cc (path_conv::fillin): Define new method. * path.h (path_conv::fillin): Declare new method. (path_conv::drive_thpe): Rename from 'get_drive_type'. (path_conv::volser): Declare new method. (path_conv::volname): Declare new method. (path_conv::root_dir): Declare new method. * syscalls.cc (fstat64): Send real path_conv to fstat as second argument.
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int ret = cygwin_select (max_fd + 1, read_fds, write_fds, except_fds, timeout < 0 ? NULL : &tv);
* autoload.cc (LoadFuncEx): Define via new LoadFuncEx2 macro. (LoadFuncEx2): Adapted from LoadFuncEx. Provides control of return value for nonexistent function. (NtQueryObject): Declare. (IsDebuggerPresent): Declare via LoadFuncEx2 and always return true if not available. * debug.h (being_debugged): Just rely on IsDebuggerPresent return value. * dtable.cc (handle_to_fn): New function. (dtable::init_std_file_from_handle): Attempt to derive std handle's name via handle_to_fn. (dtable::build_fhandler_from_name): Fill in what we can in path_conv structure when given a handle and path doesn't exist. * fhandler.cc (fhandler_base::open): Don't set the file pointer here. Use pc->exists () to determine if file exists rather than calling GetFileAttributes again. * fhandler.h (fhandler_base::exec_state_isknown): New method. (fhandler_base::fstat_helper): Add extra arguments to declaration. (fhandler_base::fstat_by_handle): Declare new method. (fhandler_base::fstat_by_name): Declare new method. * fhandler_disk_file (num_entries): Make __stdcall. (fhandler_base::fstat_by_handle): Define new method. (fhandler_base::fstat_by_name): Define new method. (fhandler_base:fstat): Call fstat_by_{handle,name} as appropriate. (fhandler_disk_file::fstat_helper): Accept extra arguments for filling out stat structure. Move handle or name specific stuff to new methods above. (fhandler_disk_file::open): Use real_path->exists rather than calling GetFileAttributes again. * ntdll.h (FILE_NAME_INFORMATION): Define new structure. (OBJECT_INFORMATION_CLASS): Partially define new enum. (OBJECT_NAME_INFORMATION): Define new structure. (NtQueryInformationFile): New declaration. (NtQueryObject): New declaration. * path.cc (path_conv::fillin): Define new method. * path.h (path_conv::fillin): Declare new method. (path_conv::drive_thpe): Rename from 'get_drive_type'. (path_conv::volser): Declare new method. (path_conv::volname): Declare new method. (path_conv::root_dir): Declare new method. * syscalls.cc (fstat64): Send real path_conv to fstat as second argument.
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if (ret > 0)
for (unsigned int i = 0; i < nfds; ++i)
{
if (fds[i].fd >= 0)
{
if (cygheap->fdtab.not_open (fds[i].fd))
* autoload.cc (LoadFuncEx): Define via new LoadFuncEx2 macro. (LoadFuncEx2): Adapted from LoadFuncEx. Provides control of return value for nonexistent function. (NtQueryObject): Declare. (IsDebuggerPresent): Declare via LoadFuncEx2 and always return true if not available. * debug.h (being_debugged): Just rely on IsDebuggerPresent return value. * dtable.cc (handle_to_fn): New function. (dtable::init_std_file_from_handle): Attempt to derive std handle's name via handle_to_fn. (dtable::build_fhandler_from_name): Fill in what we can in path_conv structure when given a handle and path doesn't exist. * fhandler.cc (fhandler_base::open): Don't set the file pointer here. Use pc->exists () to determine if file exists rather than calling GetFileAttributes again. * fhandler.h (fhandler_base::exec_state_isknown): New method. (fhandler_base::fstat_helper): Add extra arguments to declaration. (fhandler_base::fstat_by_handle): Declare new method. (fhandler_base::fstat_by_name): Declare new method. * fhandler_disk_file (num_entries): Make __stdcall. (fhandler_base::fstat_by_handle): Define new method. (fhandler_base::fstat_by_name): Define new method. (fhandler_base:fstat): Call fstat_by_{handle,name} as appropriate. (fhandler_disk_file::fstat_helper): Accept extra arguments for filling out stat structure. Move handle or name specific stuff to new methods above. (fhandler_disk_file::open): Use real_path->exists rather than calling GetFileAttributes again. * ntdll.h (FILE_NAME_INFORMATION): Define new structure. (OBJECT_INFORMATION_CLASS): Partially define new enum. (OBJECT_NAME_INFORMATION): Define new structure. (NtQueryInformationFile): New declaration. (NtQueryObject): New declaration. * path.cc (path_conv::fillin): Define new method. * path.h (path_conv::fillin): Declare new method. (path_conv::drive_thpe): Rename from 'get_drive_type'. (path_conv::volser): Declare new method. (path_conv::volname): Declare new method. (path_conv::root_dir): Declare new method. * syscalls.cc (fstat64): Send real path_conv to fstat as second argument.
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fds[i].revents = POLLHUP;
else
{
if (FD_ISSET(fds[i].fd, read_fds))
{
char peek[1];
fhandler_socket *sock =
cygheap->fdtab[fds[i].fd]->is_socket ();
if (!sock)
fds[i].revents |= POLLIN;
else
{
/* The following action can change errno. We have to
reset it to it's old value. */
int old_errno = get_errno ();
switch (sock->recvfrom (peek, sizeof (peek), MSG_PEEK,
NULL, NULL))
{
case -1: /* Something weird happened */
/* When select returns that data is available,
that could mean that the socket is in
listen mode and a client tries to connect.
Unfortunately, recvfrom() doesn't make much
sense then. It returns WSAENOTCONN in that
case. Since that's not actually an error,
we must not set POLLERR but POLLIN. */
if (WSAGetLastError () != WSAENOTCONN)
fds[i].revents |= POLLERR;
else
fds[i].revents |= POLLIN;
break;
case 0: /* Closed on the read side. */
fds[i].revents |= POLLHUP;
break;
default:
fds[i].revents |= POLLIN;
break;
}
set_errno (old_errno);
}
}
* autoload.cc (LoadFuncEx): Define via new LoadFuncEx2 macro. (LoadFuncEx2): Adapted from LoadFuncEx. Provides control of return value for nonexistent function. (NtQueryObject): Declare. (IsDebuggerPresent): Declare via LoadFuncEx2 and always return true if not available. * debug.h (being_debugged): Just rely on IsDebuggerPresent return value. * dtable.cc (handle_to_fn): New function. (dtable::init_std_file_from_handle): Attempt to derive std handle's name via handle_to_fn. (dtable::build_fhandler_from_name): Fill in what we can in path_conv structure when given a handle and path doesn't exist. * fhandler.cc (fhandler_base::open): Don't set the file pointer here. Use pc->exists () to determine if file exists rather than calling GetFileAttributes again. * fhandler.h (fhandler_base::exec_state_isknown): New method. (fhandler_base::fstat_helper): Add extra arguments to declaration. (fhandler_base::fstat_by_handle): Declare new method. (fhandler_base::fstat_by_name): Declare new method. * fhandler_disk_file (num_entries): Make __stdcall. (fhandler_base::fstat_by_handle): Define new method. (fhandler_base::fstat_by_name): Define new method. (fhandler_base:fstat): Call fstat_by_{handle,name} as appropriate. (fhandler_disk_file::fstat_helper): Accept extra arguments for filling out stat structure. Move handle or name specific stuff to new methods above. (fhandler_disk_file::open): Use real_path->exists rather than calling GetFileAttributes again. * ntdll.h (FILE_NAME_INFORMATION): Define new structure. (OBJECT_INFORMATION_CLASS): Partially define new enum. (OBJECT_NAME_INFORMATION): Define new structure. (NtQueryInformationFile): New declaration. (NtQueryObject): New declaration. * path.cc (path_conv::fillin): Define new method. * path.h (path_conv::fillin): Declare new method. (path_conv::drive_thpe): Rename from 'get_drive_type'. (path_conv::volser): Declare new method. (path_conv::volname): Declare new method. (path_conv::root_dir): Declare new method. * syscalls.cc (fstat64): Send real path_conv to fstat as second argument.
2002-05-28 03:55:40 +02:00
if (FD_ISSET(fds[i].fd, write_fds))
fds[i].revents |= POLLOUT;
if (FD_ISSET(fds[i].fd, except_fds))
fds[i].revents |= POLLPRI;
}
}
}
* autoload.cc (LoadFuncEx): Define via new LoadFuncEx2 macro. (LoadFuncEx2): Adapted from LoadFuncEx. Provides control of return value for nonexistent function. (NtQueryObject): Declare. (IsDebuggerPresent): Declare via LoadFuncEx2 and always return true if not available. * debug.h (being_debugged): Just rely on IsDebuggerPresent return value. * dtable.cc (handle_to_fn): New function. (dtable::init_std_file_from_handle): Attempt to derive std handle's name via handle_to_fn. (dtable::build_fhandler_from_name): Fill in what we can in path_conv structure when given a handle and path doesn't exist. * fhandler.cc (fhandler_base::open): Don't set the file pointer here. Use pc->exists () to determine if file exists rather than calling GetFileAttributes again. * fhandler.h (fhandler_base::exec_state_isknown): New method. (fhandler_base::fstat_helper): Add extra arguments to declaration. (fhandler_base::fstat_by_handle): Declare new method. (fhandler_base::fstat_by_name): Declare new method. * fhandler_disk_file (num_entries): Make __stdcall. (fhandler_base::fstat_by_handle): Define new method. (fhandler_base::fstat_by_name): Define new method. (fhandler_base:fstat): Call fstat_by_{handle,name} as appropriate. (fhandler_disk_file::fstat_helper): Accept extra arguments for filling out stat structure. Move handle or name specific stuff to new methods above. (fhandler_disk_file::open): Use real_path->exists rather than calling GetFileAttributes again. * ntdll.h (FILE_NAME_INFORMATION): Define new structure. (OBJECT_INFORMATION_CLASS): Partially define new enum. (OBJECT_NAME_INFORMATION): Define new structure. (NtQueryInformationFile): New declaration. (NtQueryObject): New declaration. * path.cc (path_conv::fillin): Define new method. * path.h (path_conv::fillin): Declare new method. (path_conv::drive_thpe): Rename from 'get_drive_type'. (path_conv::volser): Declare new method. (path_conv::volname): Declare new method. (path_conv::root_dir): Declare new method. * syscalls.cc (fstat64): Send real path_conv to fstat as second argument.
2002-05-28 03:55:40 +02:00
return ret;
}