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* fhandler.cc (fhandler_base::fork_fixup): Don't protect handle.

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* dlfcn.cc: Fix to confirm to coding standards.  Reorganize includes throughout
to accomodate new cygheap.h usage.
* cygheap.h (cygheap_fdmanip): New class: simplifies locking and retrieval of
fds from cygheap->fdtab.
(cygheap_fdget): Ditto.
(cygheap_fdnew): Ditto.
* fcntl.cc (_fcntl): Use new method to lock fdtab and retrieve info.
* ioctl.cc (ioctl): Ditto.
* mmap.cc (mmap): Ditto.
* net.cc: Ditto, throughout.
* passwd.cc (getpass): Ditto.
* path.cc (fchdir): Ditto.
* pipe.cc (make_pipe): Ditto.
* sec_acl.cc (facl): Ditto.
* syscalls.cc: Ditto, throughout.
* termios.cc: Ditto, throughout.
This commit is contained in:
Christopher Faylor
2001-10-15 23:39:33 +00:00
parent fff126983e
commit df63bd490a
24 changed files with 398 additions and 396 deletions
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73
winsup/cygwin/cygheap.h
View File

@ -176,6 +176,79 @@ struct init_cygheap
extern init_cygheap *cygheap;
extern void *cygheap_max;
class cygheap_fdmanip
{
protected:
int fd;
fhandler_base **fh;
bool locked;
public:
cygheap_fdmanip () {}
virtual ~cygheap_fdmanip ()
{
if (locked)
ReleaseResourceLock (LOCK_FD_LIST, WRITE_LOCK | READ_LOCK, "cygheap_fdmanip");
}
void release ()
{
cygheap->fdtab.release (fd);
}
operator int &() {return fd;}
operator fhandler_base* &() {return *fh;}
void operator = (fhandler_base *fh) {*this->fh = fh;}
fhandler_base *operator -> () const {return *fh;}
};
class cygheap_fdnew : public cygheap_fdmanip
{
public:
cygheap_fdnew (int seed_fd = -1, bool lockit = true)
{
if (lockit)
SetResourceLock (LOCK_FD_LIST, WRITE_LOCK | READ_LOCK, "cygheap_fdnew");
if (seed_fd < 0)
fd = cygheap->fdtab.find_unused_handle ();
else
fd = cygheap->fdtab.find_unused_handle (seed_fd + 1);
if (fd >= 0)
{
locked = lockit;
fh = cygheap->fdtab + fd;
}
else
{
set_errno (EMFILE);
if (lockit)
ReleaseResourceLock (LOCK_FD_LIST, WRITE_LOCK | READ_LOCK, "cygheap_fdnew");
locked = false;
}
}
};
class cygheap_fdget : public cygheap_fdmanip
{
public:
cygheap_fdget (int fd, bool lockit = false)
{
if (lockit)
SetResourceLock (LOCK_FD_LIST, READ_LOCK, "cygheap_fdget");
if (fd >= 0 && fd < (int) cygheap->fdtab.size
&& *(fh = cygheap->fdtab + fd) != NULL)
{
this->fd = fd;
locked = lockit;
}
else
{
this->fd = -1;
set_errno (EBADF);
if (lockit)
ReleaseResourceLock (LOCK_FD_LIST, READ_LOCK, "cygheap_fdget");
locked = false;
}
}
};
class child_info;
void *__stdcall cygheap_setup_for_child (child_info *ci, bool dup_later) __attribute__ ((regparm(2)));
void __stdcall cygheap_setup_for_child_cleanup (void *, child_info *, bool) __attribute__ ((regparm(3)));