Adding upstream version 2.4.57.upstream/2.4.57

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 110 insertions, 0 deletions

diff --git a/server/mpm_fdqueue.h b/server/mpm_fdqueue.h
new file mode 100644
index 0000000..1047f88
--- /dev/null
+++ b/server/mpm_fdqueue.h
@@ -0,0 +1,110 @@
+/* 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.
+ */
+
+/**
+ * @file  server/mpm_fdqueue.h
+ * @brief fd queue declarations
+ *
+ * @addtogroup APACHE_MPM_EVENT
+ * @{
+ */
+
+#ifndef MPM_FDQUEUE_H
+#define MPM_FDQUEUE_H
+
+#include <apr.h>
+
+/* This code is not AP_DECLARE()ed/exported, and used by MPMs event/worker
+ * only (for now), not worth thinking about w/o threads either...
+ */
+#if APR_HAS_THREADS
+
+#include "ap_mpm.h"
+
+#include <apr_ring.h>
+#include <apr_pools.h>
+#include <apr_thread_mutex.h>
+#include <apr_thread_cond.h>
+#include <apr_network_io.h>
+
+struct fd_queue_info_t; /* opaque */
+struct fd_queue_elem_t; /* opaque */
+typedef struct fd_queue_info_t fd_queue_info_t;
+typedef struct fd_queue_elem_t fd_queue_elem_t;
+
+AP_DECLARE(apr_status_t) ap_queue_info_create(fd_queue_info_t **queue_info,
+                                              apr_pool_t *pool, int max_idlers,
+                                              int max_recycled_pools);
+AP_DECLARE(apr_status_t) ap_queue_info_set_idle(fd_queue_info_t *queue_info,
+                                                apr_pool_t *pool_to_recycle);
+AP_DECLARE(apr_status_t) ap_queue_info_try_get_idler(fd_queue_info_t *queue_info);
+AP_DECLARE(apr_status_t) ap_queue_info_wait_for_idler(fd_queue_info_t *queue_info,
+                                                      int *had_to_block);
+AP_DECLARE(apr_uint32_t) ap_queue_info_num_idlers(fd_queue_info_t *queue_info);
+AP_DECLARE(apr_status_t) ap_queue_info_term(fd_queue_info_t *queue_info);
+
+AP_DECLARE(void) ap_queue_info_pop_pool(fd_queue_info_t *queue_info,
+                                        apr_pool_t **recycled_pool);
+AP_DECLARE(void) ap_queue_info_push_pool(fd_queue_info_t *queue_info,
+                                         apr_pool_t *pool_to_recycle);
+AP_DECLARE(void) ap_queue_info_free_idle_pools(fd_queue_info_t *queue_info);
+
+struct timer_event_t
+{
+    APR_RING_ENTRY(timer_event_t) link;
+    apr_time_t when;
+    ap_mpm_callback_fn_t *cbfunc;
+    void *baton;
+    int canceled;
+    apr_array_header_t *remove;
+};
+typedef struct timer_event_t timer_event_t;
+
+struct fd_queue_t
+{
+    APR_RING_HEAD(timers_t, timer_event_t) timers;
+    fd_queue_elem_t *data;
+    unsigned int nelts;
+    unsigned int bounds;
+    unsigned int in;
+    unsigned int out;
+    apr_thread_mutex_t *one_big_mutex;
+    apr_thread_cond_t *not_empty;
+    volatile int terminated;
+};
+typedef struct fd_queue_t fd_queue_t;
+
+AP_DECLARE(apr_status_t) ap_queue_create(fd_queue_t **pqueue,
+                                         int capacity, apr_pool_t *p);
+AP_DECLARE(apr_status_t) ap_queue_push_socket(fd_queue_t *queue,
+                                              apr_socket_t *sd, void *sd_baton,
+                                              apr_pool_t *p);
+AP_DECLARE(apr_status_t) ap_queue_push_timer(fd_queue_t *queue,
+                                             timer_event_t *te);
+AP_DECLARE(apr_status_t) ap_queue_pop_something(fd_queue_t *queue,
+                                                apr_socket_t **sd, void **sd_baton,
+                                                apr_pool_t **p, timer_event_t **te);
+#define                  ap_queue_pop_socket(q_, s_, p_) \
+                            ap_queue_pop_something((q_), (s_), NULL, (p_), NULL)
+
+AP_DECLARE(apr_status_t) ap_queue_interrupt_all(fd_queue_t *queue);
+AP_DECLARE(apr_status_t) ap_queue_interrupt_one(fd_queue_t *queue);
+AP_DECLARE(apr_status_t) ap_queue_term(fd_queue_t *queue);
+
+#endif /* APR_HAS_THREADS */
+
+#endif /* MPM_FDQUEUE_H */
+/** @} */