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-rw-r--r--file_io/unix/pipe.c292
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diff --git a/file_io/unix/pipe.c b/file_io/unix/pipe.c
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+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "apr_arch_file_io.h"
+#include "apr_strings.h"
+#include "apr_portable.h"
+
+#include "apr_arch_inherit.h"
+
+/* Figure out how to get pipe block/nonblock on BeOS...
+ * Basically, BONE7 changed things again so that ioctl didn't work,
+ * but now fcntl does, hence we need to do this extra checking.
+ * The joys of beta programs. :-)
+ */
+#if defined(BEOS)
+#if !defined(BONE7)
+# define BEOS_BLOCKING 1
+#else
+# define BEOS_BLOCKING 0
+#endif
+#endif
+
+static apr_status_t pipeblock(apr_file_t *thepipe)
+{
+#if !defined(BEOS) || !BEOS_BLOCKING
+ int fd_flags;
+
+ fd_flags = fcntl(thepipe->filedes, F_GETFL, 0);
+# if defined(O_NONBLOCK)
+ fd_flags &= ~O_NONBLOCK;
+# elif defined(O_NDELAY)
+ fd_flags &= ~O_NDELAY;
+# elif defined(O_FNDELAY)
+ fd_flags &= ~O_FNDELAY;
+# else
+ /* XXXX: this breaks things, but an alternative isn't obvious...*/
+ return APR_ENOTIMPL;
+# endif
+ if (fcntl(thepipe->filedes, F_SETFL, fd_flags) == -1) {
+ return errno;
+ }
+#else /* BEOS_BLOCKING */
+
+# if BEOS_BONE /* This only works on BONE 0-6 */
+ int on = 0;
+ if (ioctl(thepipe->filedes, FIONBIO, &on, sizeof(on)) < 0) {
+ return errno;
+ }
+# else /* "classic" BeOS doesn't support this at all */
+ return APR_ENOTIMPL;
+# endif
+
+#endif /* !BEOS_BLOCKING */
+
+ thepipe->blocking = BLK_ON;
+ return APR_SUCCESS;
+}
+
+static apr_status_t pipenonblock(apr_file_t *thepipe)
+{
+#if !defined(BEOS) || !BEOS_BLOCKING
+ int fd_flags = fcntl(thepipe->filedes, F_GETFL, 0);
+
+# if defined(O_NONBLOCK)
+ fd_flags |= O_NONBLOCK;
+# elif defined(O_NDELAY)
+ fd_flags |= O_NDELAY;
+# elif defined(O_FNDELAY)
+ fd_flags |= O_FNDELAY;
+# else
+ /* XXXX: this breaks things, but an alternative isn't obvious...*/
+ return APR_ENOTIMPL;
+# endif
+ if (fcntl(thepipe->filedes, F_SETFL, fd_flags) == -1) {
+ return errno;
+ }
+
+#else /* BEOS_BLOCKING */
+
+# if BEOS_BONE /* This only works on BONE 0-6 */
+ int on = 1;
+ if (ioctl(thepipe->filedes, FIONBIO, &on, sizeof(on)) < 0) {
+ return errno;
+ }
+# else /* "classic" BeOS doesn't support this at all */
+ return APR_ENOTIMPL;
+# endif
+
+#endif /* !BEOS_BLOCKING */
+
+ thepipe->blocking = BLK_OFF;
+ return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_file_pipe_timeout_set(apr_file_t *thepipe, apr_interval_time_t timeout)
+{
+ if (thepipe->is_pipe == 1) {
+ thepipe->timeout = timeout;
+ if (timeout >= 0) {
+ if (thepipe->blocking != BLK_OFF) { /* blocking or unknown state */
+ return pipenonblock(thepipe);
+ }
+ }
+ else {
+ if (thepipe->blocking != BLK_ON) { /* non-blocking or unknown state */
+ return pipeblock(thepipe);
+ }
+ }
+ return APR_SUCCESS;
+ }
+ return APR_EINVAL;
+}
+
+APR_DECLARE(apr_status_t) apr_file_pipe_timeout_get(apr_file_t *thepipe, apr_interval_time_t *timeout)
+{
+ if (thepipe->is_pipe == 1) {
+ *timeout = thepipe->timeout;
+ return APR_SUCCESS;
+ }
+ return APR_EINVAL;
+}
+
+APR_DECLARE(apr_status_t) apr_os_pipe_put_ex(apr_file_t **file,
+ apr_os_file_t *thefile,
+ int register_cleanup,
+ apr_pool_t *pool)
+{
+ int *dafile = thefile;
+
+ (*file) = apr_pcalloc(pool, sizeof(apr_file_t));
+ (*file)->pool = pool;
+ (*file)->eof_hit = 0;
+ (*file)->is_pipe = 1;
+ (*file)->blocking = BLK_UNKNOWN; /* app needs to make a timeout call */
+ (*file)->timeout = -1;
+ (*file)->ungetchar = -1; /* no char avail */
+ (*file)->filedes = *dafile;
+ if (!register_cleanup) {
+ (*file)->flags = APR_FOPEN_NOCLEANUP;
+ }
+ (*file)->buffered = 0;
+#if APR_HAS_THREADS
+ (*file)->thlock = NULL;
+#endif
+ if (register_cleanup) {
+ apr_pool_cleanup_register((*file)->pool, (void *)(*file),
+ apr_unix_file_cleanup,
+ apr_pool_cleanup_null);
+ }
+#ifndef WAITIO_USES_POLL
+ /* Start out with no pollset. apr_wait_for_io_or_timeout() will
+ * initialize the pollset if needed.
+ */
+ (*file)->pollset = NULL;
+#endif
+ return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_os_pipe_put(apr_file_t **file,
+ apr_os_file_t *thefile,
+ apr_pool_t *pool)
+{
+ return apr_os_pipe_put_ex(file, thefile, 0, pool);
+}
+
+static apr_status_t file_pipe_create(apr_file_t **in, apr_file_t **out,
+ apr_pool_t *pool_in, apr_pool_t *pool_out)
+{
+ int filedes[2];
+
+ if (pipe(filedes) == -1) {
+ return errno;
+ }
+
+ (*in) = (apr_file_t *)apr_pcalloc(pool_in, sizeof(apr_file_t));
+ (*in)->pool = pool_in;
+ (*in)->filedes = filedes[0];
+ (*in)->is_pipe = 1;
+ (*in)->fname = NULL;
+ (*in)->buffered = 0;
+ (*in)->blocking = BLK_ON;
+ (*in)->timeout = -1;
+ (*in)->ungetchar = -1;
+ (*in)->flags = APR_INHERIT;
+#if APR_HAS_THREADS
+ (*in)->thlock = NULL;
+#endif
+#ifndef WAITIO_USES_POLL
+ (*in)->pollset = NULL;
+#endif
+ (*out) = (apr_file_t *)apr_pcalloc(pool_out, sizeof(apr_file_t));
+ (*out)->pool = pool_out;
+ (*out)->filedes = filedes[1];
+ (*out)->is_pipe = 1;
+ (*out)->fname = NULL;
+ (*out)->buffered = 0;
+ (*out)->blocking = BLK_ON;
+ (*out)->flags = APR_INHERIT;
+ (*out)->timeout = -1;
+#if APR_HAS_THREADS
+ (*out)->thlock = NULL;
+#endif
+#ifndef WAITIO_USES_POLL
+ (*out)->pollset = NULL;
+#endif
+ apr_pool_cleanup_register((*in)->pool, (void *)(*in), apr_unix_file_cleanup,
+ apr_pool_cleanup_null);
+ apr_pool_cleanup_register((*out)->pool, (void *)(*out), apr_unix_file_cleanup,
+ apr_pool_cleanup_null);
+ return APR_SUCCESS;
+}
+
+static void file_pipe_block(apr_file_t **in, apr_file_t **out, apr_int32_t blocking)
+{
+ switch (blocking) {
+ case APR_FULL_BLOCK:
+ break;
+ case APR_READ_BLOCK:
+ apr_file_pipe_timeout_set(*out, 0);
+ break;
+ case APR_WRITE_BLOCK:
+ apr_file_pipe_timeout_set(*in, 0);
+ break;
+ default:
+ apr_file_pipe_timeout_set(*out, 0);
+ apr_file_pipe_timeout_set(*in, 0);
+ break;
+ }
+}
+
+APR_DECLARE(apr_status_t) apr_file_pipe_create(apr_file_t **in,
+ apr_file_t **out, apr_pool_t *pool)
+{
+ return file_pipe_create(in, out, pool, pool);
+}
+
+APR_DECLARE(apr_status_t) apr_file_pipe_create_ex(apr_file_t **in,
+ apr_file_t **out,
+ apr_int32_t blocking,
+ apr_pool_t *pool)
+{
+ apr_status_t status;
+
+ if ((status = file_pipe_create(in, out, pool, pool)) != APR_SUCCESS) {
+ return status;
+ }
+
+ file_pipe_block(in, out, blocking);
+
+ return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_file_pipe_create_pools(apr_file_t **in,
+ apr_file_t **out, apr_int32_t blocking, apr_pool_t *pool_in, apr_pool_t *pool_out)
+{
+ apr_status_t status;
+
+ if ((status = file_pipe_create(in, out, pool_in, pool_out)) != APR_SUCCESS) {
+ return status;
+ }
+
+ file_pipe_block(in, out, blocking);
+
+ return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_file_namedpipe_create(const char *filename,
+ apr_fileperms_t perm, apr_pool_t *pool)
+{
+ mode_t mode = apr_unix_perms2mode(perm);
+
+ if (mkfifo(filename, mode) == -1) {
+ return errno;
+ }
+ return APR_SUCCESS;
+}
+
+
+