online +li~JClqA bѿ _I|+'/* 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 scoreboard.h * @brief Apache scoreboard library */ #ifndef APACHE_SCOREBOARD_H #define APACHE_SCOREBOARD_H #ifdef __cplusplus extern "C" { #endif #if APR_HAVE_SYS_TIME_H #include #include #endif #include "ap_config.h" #include "http_config.h" #include "apr_thread_proc.h" #include "apr_portable.h" #include "apr_shm.h" #include "apr_optional.h" /* Scoreboard file, if there is one */ #ifndef DEFAULT_SCOREBOARD #define DEFAULT_SCOREBOARD "logs/apache_runtime_status" #endif /* Scoreboard info on a process is, for now, kept very brief --- * just status value and pid (the latter so that the caretaker process * can properly update the scoreboard when a process dies). We may want * to eventually add a separate set of long_score structures which would * give, for each process, the number of requests serviced, and info on * the current, or most recent, request. * * Status values: */ #define SERVER_DEAD 0 #define SERVER_STARTING 1 /* Server Starting up */ #define SERVER_READY 2 /* Waiting for connection (or accept() lock) */ #define SERVER_BUSY_READ 3 /* Reading a client request */ #define SERVER_BUSY_WRITE 4 /* Processing a client request */ #define SERVER_BUSY_KEEPALIVE 5 /* Waiting for more requests via keepalive */ #define SERVER_BUSY_LOG 6 /* Logging the request */ #define SERVER_BUSY_DNS 7 /* Looking up a hostname */ #define SERVER_CLOSING 8 /* Closing the connection */ #define SERVER_GRACEFUL 9 /* server is gracefully finishing request */ #define SERVER_IDLE_KILL 10 /* Server is cleaning up idle children. */ #define SERVER_NUM_STATUS 11 /* number of status settings */ /* Type used for generation indices. Startup and every restart cause a * new generation of children to be spawned. Children within the same * generation share the same configuration information -- pointers to stuff * created at config time in the parent are valid across children. However, * this can't work effectively with non-forked architectures. So while the * arrays in the scoreboard never change between the parent and forked * children, so they do not require shm storage, the contents of the shm * may contain no pointers. */ typedef int ap_generation_t; /* Is the scoreboard shared between processes or not? * Set by the MPM when the scoreboard is created. */ typedef enum { SB_NOT_SHARED = 1, SB_SHARED = 2 } ap_scoreboard_e; /* stuff which is worker specific */ typedef struct worker_score worker_score; struct worker_score { #if APR_HAS_THREADS apr_os_thread_t tid; #endif int thread_num; /* 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 short conn_count; apr_off_t conn_bytes; unsigned long access_count; apr_off_t bytes_served; unsigned long my_access_count; apr_off_t my_bytes_served; apr_time_t start_time; apr_time_t stop_time;