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Diffstat (limited to 'winsup/cygwin/pipe.cc')
-rw-r--r--winsup/cygwin/pipe.cc72
1 files changed, 37 insertions, 35 deletions
diff --git a/winsup/cygwin/pipe.cc b/winsup/cygwin/pipe.cc
index 6fb9f06..d9eebb1 100644
--- a/winsup/cygwin/pipe.cc
+++ b/winsup/cygwin/pipe.cc
@@ -128,51 +128,53 @@ fhandler_pipe::dup (fhandler_base *child)
int
make_pipe (int fildes[2], unsigned int psize, int mode)
{
- SetResourceLock (LOCK_FD_LIST, WRITE_LOCK | READ_LOCK, "make_pipe");
-
HANDLE r, w;
- int fdr = -1, fdw = -1;
SECURITY_ATTRIBUTES *sa = (mode & O_NOINHERIT) ? &sec_none_nih : &sec_none;
int res = -1;
- if ((fdr = cygheap->fdtab.find_unused_handle ()) < 0)
- set_errno (ENMFILE);
- else if ((fdw = cygheap->fdtab.find_unused_handle (fdr + 1)) < 0)
- set_errno (ENMFILE);
- else if (!CreatePipe (&r, &w, sa, psize))
- __seterrno ();
+ cygheap_fdnew fdr;
+ if (fdr < 0)
+ /* saw an error */;
else
{
- fhandler_pipe *fhr = (fhandler_pipe *) cygheap->fdtab.build_fhandler (fdr, FH_PIPER, "/dev/piper");
- fhandler_pipe *fhw = (fhandler_pipe *) cygheap->fdtab.build_fhandler (fdw, FH_PIPEW, "/dev/pipew");
-
- int binmode = mode & O_TEXT ? 0 : 1;
- fhr->init (r, GENERIC_READ, binmode);
- fhw->init (w, GENERIC_WRITE, binmode);
- if (mode & O_NOINHERIT)
- {
- fhr->set_close_on_exec_flag (1);
- fhw->set_close_on_exec_flag (1);
- }
-
- fildes[0] = fdr;
- fildes[1] = fdw;
-
- res = 0;
- fhr->create_guard (sa);
- if (wincap.has_unreliable_pipes ())
+ cygheap_fdnew fdw (fdr, false);
+ if (fdw < 0)
+ set_errno (ENMFILE);
+ else if (!CreatePipe (&r, &w, sa, psize))
+ __seterrno ();
+ else
{
- char buf[80];
- int count = pipecount++; /* FIXME: Should this be InterlockedIncrement? */
- __small_sprintf (buf, pipeid_fmt, myself->pid, count);
- fhw->writepipe_exists = CreateEvent (sa, TRUE, FALSE, buf);
- fhr->orig_pid = myself->pid;
- fhr->id = count;
+ fhandler_pipe *fhr = (fhandler_pipe *) cygheap->fdtab.build_fhandler (fdr, FH_PIPER, "/dev/piper");
+ fhandler_pipe *fhw = (fhandler_pipe *) cygheap->fdtab.build_fhandler (fdw, FH_PIPEW, "/dev/pipew");
+
+ int binmode = mode & O_TEXT ? 0 : 1;
+ fhr->init (r, GENERIC_READ, binmode);
+ fhw->init (w, GENERIC_WRITE, binmode);
+ if (mode & O_NOINHERIT)
+ {
+ fhr->set_close_on_exec_flag (1);
+ fhw->set_close_on_exec_flag (1);
+ }
+
+ fildes[0] = fdr;
+ fildes[1] = fdw;
+
+ res = 0;
+ fhr->create_guard (sa);
+ if (wincap.has_unreliable_pipes ())
+ {
+ char buf[80];
+ int count = pipecount++; /* FIXME: Should this be InterlockedIncrement? */
+ __small_sprintf (buf, pipeid_fmt, myself->pid, count);
+ fhw->writepipe_exists = CreateEvent (sa, TRUE, FALSE, buf);
+ fhr->orig_pid = myself->pid;
+ fhr->id = count;
+ }
}
}
- syscall_printf ("%d = make_pipe ([%d, %d], %d, %p)", res, fdr, fdw, psize, mode);
- ReleaseResourceLock(LOCK_FD_LIST, WRITE_LOCK | READ_LOCK, "make_pipe");
+ syscall_printf ("%d = make_pipe ([%d, %d], %d, %p)", res, fildes[0],
+ fildes[1], psize, mode);
return res;
}