Line data    Source code

       1             : /*
       2             :  * SPDX-License-Identifier: MPL-2.0
       3             :  *
       4             :  * This Source Code Form is subject to the terms of the Mozilla Public
       5             :  * License, v. 2.0.  If a copy of the MPL was not distributed with this
       6             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       7             :  *
       8             :  * Copyright 2024 MonetDB Foundation;
       9             :  * Copyright August 2008 - 2023 MonetDB B.V.;
      10             :  * Copyright 1997 - July 2008 CWI.
      11             :  */
      12             : 
      13             : #include "monetdb_config.h"
      14             : #include "stream.h"
      15             : #include "stream_internal.h"
      16             : 
      17             : 
      18             : 
      19             : static ssize_t
      20           0 : stream_blackhole_write(stream *restrict s, const void *restrict buf, size_t elmsize, size_t cnt)
      21             : {
      22           0 :         (void) s;
      23           0 :         (void) buf;
      24           0 :         (void) elmsize;
      25           0 :         return (ssize_t) cnt;
      26             : }
      27             : 
      28             : static void
      29           0 : stream_blackhole_close(stream *s)
      30             : {
      31           0 :         (void) s;
      32             :         /* no resources to close */
      33           0 : }
      34             : 
      35             : stream *
      36           0 : stream_blackhole_create(void)
      37             : {
      38           0 :         stream *s;
      39           0 :         if ((s = create_stream("blackhole")) == NULL) {
      40             :                 return NULL;
      41             :         }
      42             : 
      43           0 :         s->read = NULL;
      44           0 :         s->write = stream_blackhole_write;
      45           0 :         s->close = stream_blackhole_close;
      46           0 :         s->flush = NULL;
      47           0 :         s->readonly = false;
      48           0 :         return s;
      49             : }