-/* Copyright 2001-2004 The Apache Software Foundation
- *
- * Licensed 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
+/* 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
*
* limitations under the License.
*/
+/**
+ * @file scoreboard.h
+ * @brief Apache scoreboard library
+ */
+
#ifndef APACHE_SCOREBOARD_H
#define APACHE_SCOREBOARD_H
SB_SHARED = 2
} ap_scoreboard_e;
-#define SB_WORKING 0 /* The server is busy and the child is useful. */
-#define SB_IDLE_DIE 1 /* The server is idle and the child is superfluous. */
- /* The child should check for this and exit gracefully. */
-
/* stuff which is worker specific */
-/***********************WARNING***************************************/
-/* These are things that are used by mod_status. Do not put anything */
-/* in here that you cannot live without. This structure will not */
-/* be available if mod_status is not loaded. */
-/*********************************************************************/
typedef struct worker_score worker_score;
-
struct worker_score {
int thread_num;
#if APR_HAS_THREADS
apr_os_thread_t tid;
#endif
+ /* With some MPMs (e.g., worker), a worker_score can represent
+ * a thread in a terminating process which is no longer
+ * represented by the corresponding process_score. These MPMs
+ * should set pid and generation fields in the worker_score.
+ */
+ pid_t pid;
+ ap_generation_t generation;
unsigned char status;
unsigned long access_count;
apr_off_t bytes_served;
typedef struct {
int server_limit;
int thread_limit;
- int lb_limit;
ap_scoreboard_e sb_type;
- ap_generation_t running_generation; /* the generation of children which
- * should still be serving requests. */
+ ap_generation_t running_generation; /* the generation of children which
+ * should still be serving requests.
+ */
apr_time_t restart_time;
+ int lb_limit;
} global_score;
/* stuff which the parent generally writes and the children rarely read */
typedef struct process_score process_score;
-struct process_score{
+struct process_score {
pid_t pid;
ap_generation_t generation; /* generation of this child */
ap_scoreboard_e sb_type;
/* stuff which is lb specific */
typedef struct lb_score lb_score;
-struct lb_score{
+struct lb_score {
/* TODO: make a real stuct from this */
unsigned char data[1024];
};
global_score *global;
process_score *parent;
worker_score **servers;
- lb_score **balancers;
+ lb_score *balancers;
} scoreboard;
typedef struct ap_sb_handle_t ap_sb_handle_t;
AP_DECLARE(void) ap_create_sb_handle(ap_sb_handle_t **new_sbh, apr_pool_t *p,
int child_num, int thread_num);
-AP_DECLARE(int) find_child_by_pid(apr_proc_t *pid);
+int find_child_by_pid(apr_proc_t *pid);
AP_DECLARE(int) ap_update_child_status(ap_sb_handle_t *sbh, int status, request_rec *r);
AP_DECLARE(int) ap_update_child_status_from_indexes(int child_num, int thread_num,
int status, request_rec *r);
-void ap_time_process_request(int child_num, int thread_num, int status);
+void ap_time_process_request(ap_sb_handle_t *sbh, int status);
AP_DECLARE(worker_score *) ap_get_scoreboard_worker(int x, int y);
AP_DECLARE(process_score *) ap_get_scoreboard_process(int x);
AP_DECLARE(global_score *) ap_get_scoreboard_global(void);
-AP_DECLARE(lb_score *) ap_get_scoreboard_lb(int child_num, int lb_num);
+AP_DECLARE(lb_score *) ap_get_scoreboard_lb(int lb_num);
AP_DECLARE_DATA extern scoreboard *ap_scoreboard_image;
AP_DECLARE_DATA extern const char *ap_scoreboard_fname;