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[bottlenecks.git] / rubbos / app / httpd-2.0.64 / srclib / apr / poll / unix / pollacc.c

diff --git a/rubbos/app/httpd-2.0.64/srclib/apr/poll/unix/pollacc.c b/rubbos/app/httpd-2.0.64/srclib/apr/poll/unix/pollacc.c
new file mode 100644 (file)
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+++ b/rubbos/app/httpd-2.0.64/srclib/apr/poll/unix/pollacc.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.h"
+#include "apr_poll.h"
+#include "apr_arch_networkio.h"
+#include "apr_arch_file_io.h"
+#if HAVE_POLL_H
+#include <poll.h>
+#endif
+#if HAVE_SYS_POLL_H
+#include <sys/poll.h>
+#endif
+
+APR_DECLARE(apr_status_t) apr_poll_setup(apr_pollfd_t **new, apr_int32_t num, apr_pool_t *cont)
+{
+    (*new) = (apr_pollfd_t *)apr_pcalloc(cont, sizeof(apr_pollfd_t) * (num + 1));
+    if ((*new) == NULL) {
+        return APR_ENOMEM;
+    }
+    (*new)[num].desc_type = APR_POLL_LASTDESC;
+    (*new)[0].p = cont;
+    return APR_SUCCESS;
+}
+
+static apr_pollfd_t *find_poll_sock(apr_pollfd_t *aprset, apr_socket_t *sock)
+{
+    apr_pollfd_t *curr = aprset;
+    
+    while (curr->desc.s != sock) {
+        if (curr->desc_type == APR_POLL_LASTDESC) {
+            return NULL;
+        }
+        curr++;
+    }
+
+    return curr;
+}
+
+APR_DECLARE(apr_status_t) apr_poll_socket_add(apr_pollfd_t *aprset, 
+                              apr_socket_t *sock, apr_int16_t event)
+{
+    apr_pollfd_t *curr = aprset;
+    
+    while (curr->desc_type != APR_NO_DESC) {
+        if (curr->desc_type == APR_POLL_LASTDESC) {
+            return APR_ENOMEM;
+        }
+        curr++;
+    }
+    curr->desc.s = sock;
+    curr->desc_type = APR_POLL_SOCKET;
+    curr->reqevents = event;
+
+    return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_poll_revents_get(apr_int16_t *event, apr_socket_t *sock, apr_pollfd_t *aprset)
+{
+    apr_pollfd_t *curr = find_poll_sock(aprset, sock);
+    if (curr == NULL) {
+        return APR_NOTFOUND;
+    }
+
+    (*event) = curr->rtnevents;
+    return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_poll_socket_mask(apr_pollfd_t *aprset, 
+                                  apr_socket_t *sock, apr_int16_t events)
+{
+    apr_pollfd_t *curr = find_poll_sock(aprset, sock);
+    if (curr == NULL) {
+        return APR_NOTFOUND;
+    }
+    
+    if (curr->reqevents & events) {
+        curr->reqevents ^= events;
+    }
+
+    return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_poll_socket_remove(apr_pollfd_t *aprset, apr_socket_t *sock)
+{
+    apr_pollfd_t *match = NULL;
+    apr_pollfd_t *curr;
+
+    for (curr = aprset; (curr->desc_type != APR_POLL_LASTDESC) &&
+             (curr->desc_type != APR_NO_DESC); curr++) {
+        if (curr->desc.s == sock) {
+            match = curr;
+        }
+    }
+    if (match == NULL) {
+        return APR_NOTFOUND;
+    }
+
+    /* Remove this entry by swapping the last entry into its place.
+     * This ensures that the non-APR_NO_DESC entries are all at the
+     * start of the array, so that apr_poll() doesn't have to worry
+     * about invalid entries in the middle of the pollset.
+     */
+    curr--;
+    if (curr != match) {
+        *match = *curr;
+    }
+    curr->desc_type = APR_NO_DESC;
+
+    return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_poll_socket_clear(apr_pollfd_t *aprset, apr_int16_t events)
+{
+    apr_pollfd_t *curr = aprset;
+
+    while (curr->desc_type != APR_POLL_LASTDESC) {
+        if (curr->reqevents & events) {
+            curr->reqevents &= ~events;
+        }
+        curr++;
+    }
+    return APR_SUCCESS;
+}
+
+#if APR_FILES_AS_SOCKETS
+/* I'm not sure if this needs to return an apr_status_t or not, but
+ * for right now, we'll leave it this way, and change it later if
+ * necessary.
+ */
+APR_DECLARE(apr_status_t) apr_socket_from_file(apr_socket_t **newsock, apr_file_t *file)
+{
+    (*newsock) = apr_pcalloc(file->pool, sizeof(**newsock));
+    (*newsock)->socketdes = file->filedes;
+    (*newsock)->cntxt = file->pool;
+    (*newsock)->timeout = file->timeout;
+    return APR_SUCCESS;
+}
+#endif