libc/winsup/cygwin/dtable.h
Christopher Faylor 792011508a * cygheap.cc (_cfree): Add regparm attribute.
(_crealloc): Ditto.
* dcrt0.cc (dll_crt0_1): Default to always checking for executable for now.
* dtable.cc (dtable::not_open): Move method.
* dtable.h (dtable): Here.
* exceptions.cc (ctrl_c_handler): Don't expect process group leader to handle a
signal if it doesn't exist.
* fhandler.h (fhandler_base): Make openflags protected.
* localtime.c (tzsetwall): Check for __CYGWIN__ as well as __WIN32__.
* path.cc (path_conv::check): Add some comments.  Change strcat to assignment.
* lib/_cygwin_S_IEXEC.cc (_cygwin_bob__): Eliminate.
* fhandler_tty.cc (fhandler_console::dup): Set controlling terminal if
necessary.
* fhandler_tty.cc (fhandler_tty_slave::dup): Ditto.
2001-05-08 15:16:49 +00:00

74 lines
2.2 KiB
C++

/* dtable.h: fd table definition.
Copyright 2000 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. */
/* Initial and increment values for cygwin's fd table */
#define NOFILE_INCR 32
#include "thread.h"
class dtable
{
fhandler_base **fds;
fhandler_base **fds_on_hold;
int first_fd_for_open;
int cnt_need_fixup_before;
public:
size_t size;
dtable () : first_fd_for_open(3), cnt_need_fixup_before(0) {}
void init () {first_fd_for_open = 3;}
void dec_need_fixup_before ()
{ if (cnt_need_fixup_before > 0) --cnt_need_fixup_before; }
void inc_need_fixup_before ()
{ ++cnt_need_fixup_before; }
BOOL need_fixup_before ()
{ return cnt_need_fixup_before > 0; }
int vfork_child_dup ();
void vfork_parent_restore ();
void vfork_child_fixup ();
fhandler_base *dup_worker (fhandler_base *oldfh);
int extend (int howmuch);
void fixup_before_exec (DWORD win_proc_id);
void fixup_before_fork (DWORD win_proc_id);
void fixup_after_fork (HANDLE);
fhandler_base *build_fhandler (int fd, DWORD dev, const char *name,
int unit = -1);
fhandler_base *build_fhandler (int fd, const char *name, HANDLE h);
int not_open (int fd)
{
SetResourceLock (LOCK_FD_LIST, READ_LOCK, "not_open");
int res = fd < 0 || fd >= (int) size || fds[fd] == NULL;
ReleaseResourceLock (LOCK_FD_LIST, READ_LOCK, "not open");
return res;
}
int find_unused_handle (int start);
int find_unused_handle () { return find_unused_handle (first_fd_for_open);}
void release (int fd);
void init_std_file_from_handle (int fd, HANDLE handle, DWORD access, const char *name);
int dup2 (int oldfd, int newfd);
void fixup_after_exec (HANDLE);
inline fhandler_base *operator [](int fd) { return fds[fd]; }
select_record *select_read (int fd, select_record *s);
select_record *select_write (int fd, select_record *s);
select_record *select_except (int fd, select_record *s);
operator fhandler_base **() {return fds;}
};
void dtable_init (void);
void stdio_init (void);
extern dtable fdtab;
extern "C" int getfdtabsize ();
extern "C" void setfdtabsize (int);