mirror of
git://sourceware.org/git/newlib-cygwin.git
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47063f00e4
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.
85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
/* dtable.h: fd table definition.
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Copyright 2000, 2001 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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/* Initial and increment values for cygwin's fd table */
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#define NOFILE_INCR 32
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#include "thread.h"
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class suffix_info;
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class dtable
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{
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fhandler_base **fds;
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fhandler_base **fds_on_hold;
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int first_fd_for_open;
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int cnt_need_fixup_before;
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int console_fds;
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public:
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size_t size;
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dtable () : first_fd_for_open(3), cnt_need_fixup_before(0), console_fds(0) {}
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void init () {first_fd_for_open = 3;}
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void dec_need_fixup_before ()
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{ if (cnt_need_fixup_before > 0) --cnt_need_fixup_before; }
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void inc_need_fixup_before ()
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{ cnt_need_fixup_before++; }
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BOOL need_fixup_before ()
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{ return cnt_need_fixup_before > 0; }
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void dec_console_fds ();
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void inc_console_fds ()
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{ console_fds++; }
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BOOL has_console_fds ()
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{ return console_fds > 0; }
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int vfork_child_dup ();
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void vfork_parent_restore ();
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void vfork_child_fixup ();
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fhandler_base *dup_worker (fhandler_base *oldfh);
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int extend (int howmuch);
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void fixup_before_exec (DWORD win_proc_id);
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void fixup_before_fork (DWORD win_proc_id);
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void fixup_after_fork (HANDLE);
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fhandler_base *build_fhandler (int fd, DWORD dev, const char *name,
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int unit = -1);
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fhandler_base *build_fhandler (int fd, const char *name, HANDLE h = NULL,
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path_conv *pc = NULL,
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unsigned opts = PC_SYM_FOLLOW, suffix_info *si = NULL);
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inline int not_open (int fd)
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{
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SetResourceLock (LOCK_FD_LIST, READ_LOCK, "not_open");
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int res = fd < 0 || fd >= (int) size || fds[fd] == NULL;
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ReleaseResourceLock (LOCK_FD_LIST, READ_LOCK, "not open");
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return res;
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}
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void reset_unix_path_name (int fd, const char *name);
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int find_unused_handle (int start);
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int find_unused_handle () { return find_unused_handle (first_fd_for_open);}
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void release (int fd);
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void init_std_file_from_handle (int fd, HANDLE handle, DWORD access, const char *name);
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int dup2 (int oldfd, int newfd);
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void fixup_after_exec (HANDLE);
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inline fhandler_base *operator [](int fd) const { return fds[fd]; }
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select_record *select_read (int fd, select_record *s);
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select_record *select_write (int fd, select_record *s);
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select_record *select_except (int fd, select_record *s);
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operator fhandler_base **() {return fds;}
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};
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void dtable_init (void);
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void stdio_init (void);
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extern dtable fdtab;
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extern "C" int getfdtabsize ();
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extern "C" void setfdtabsize (int);
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