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Diffstat (limited to 'rubbos/app/httpd-2.0.64/include/mpm_common.h')
| -rw-r--r-- | rubbos/app/httpd-2.0.64/include/mpm_common.h | 298 |
1 files changed, 0 insertions, 298 deletions
diff --git a/rubbos/app/httpd-2.0.64/include/mpm_common.h b/rubbos/app/httpd-2.0.64/include/mpm_common.h deleted file mode 100644 index 68ead5f7..00000000 --- a/rubbos/app/httpd-2.0.64/include/mpm_common.h +++ /dev/null @@ -1,298 +0,0 @@ -/* 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. - */ - -/* The purpose of this file is to store the code that MOST mpm's will need - * this does not mean a function only goes into this file if every MPM needs - * it. It means that if a function is needed by more than one MPM, and - * future maintenance would be served by making the code common, then the - * function belongs here. - * - * This is going in src/main because it is not platform specific, it is - * specific to multi-process servers, but NOT to Unix. Which is why it - * does not belong in src/os/unix - */ - -#ifndef APACHE_MPM_COMMON_H -#define APACHE_MPM_COMMON_H - -#include "ap_config.h" - -#if APR_HAVE_NETINET_TCP_H -#include <netinet/tcp.h> /* for TCP_NODELAY */ -#endif - -#include "mpm.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * @package Multi-Processing Modules functions - */ - -/* The maximum length of the queue of pending connections, as defined - * by listen(2). Under some systems, it should be increased if you - * are experiencing a heavy TCP SYN flood attack. - * - * It defaults to 511 instead of 512 because some systems store it - * as an 8-bit datatype; 512 truncated to 8-bits is 0, while 511 is - * 255 when truncated. - */ -#ifndef DEFAULT_LISTENBACKLOG -#define DEFAULT_LISTENBACKLOG 511 -#endif - -/** - * Make sure all child processes that have been spawned by the parent process - * have died. This includes process registered as "other_children". - * @warning This is only defined if the MPM defines - * AP_MPM_WANT_RECLAIM_CHILD_PROCESSES - * @param terminate Either 1 or 0. If 1, send the child processes SIGTERM - * each time through the loop. If 0, give the process time to die - * on its own before signalling it. - * @tip This function requires that some macros are defined by the MPM: <pre> - * MPM_CHILD_PID -- Get the pid from the specified spot in the scoreboard - * MPM_NOTE_CHILD_KILLED -- Note the child died in the scoreboard - * </pre> - * @tip The MPM child processes which are reclaimed are those listed - * in the scoreboard as well as those currently registered via - * ap_register_extra_mpm_process(). - */ -#ifdef AP_MPM_WANT_RECLAIM_CHILD_PROCESSES -void ap_reclaim_child_processes(int terminate); -#endif - -/** - * Tell ap_reclaim_child_processes() about an MPM child process which has no - * entry in the scoreboard. - * @warning This is only defined if the MPM defines - * AP_MPM_WANT_RECLAIM_CHILD_PROCESSES - * @param pid The process id of an MPM child process which should be - * reclaimed when ap_reclaim_child_processes() is called. - * @tip If an extra MPM child process terminates prior to calling - * ap_reclaim_child_processes(), remove it from the list of such processes - * by calling ap_unregister_extra_mpm_process(). - */ -#ifdef AP_MPM_WANT_RECLAIM_CHILD_PROCESSES -void ap_register_extra_mpm_process(pid_t pid); -#endif - -/** - * Unregister an MPM child process which was previously registered by a - * call to ap_register_extra_mpm_process(). - * @warning This is only defined if the MPM defines - * AP_MPM_WANT_RECLAIM_CHILD_PROCESSES - * @param pid The process id of an MPM child process which no longer needs to - * be reclaimed. - * @return 1 if the process was found and removed, 0 otherwise - */ -#ifdef AP_MPM_WANT_RECLAIM_CHILD_PROCESSES -int ap_unregister_extra_mpm_process(pid_t pid); -#endif - -/** - * Determine if any child process has died. If no child process died, then - * this process sleeps for the amount of time specified by the MPM defined - * macro SCOREBOARD_MAINTENANCE_INTERVAL. - * @param status The return code if a process has died - * @param ret The process id of the process that died - * @param p The pool to allocate out of - */ -#ifdef AP_MPM_WANT_WAIT_OR_TIMEOUT -void ap_wait_or_timeout(apr_exit_why_e *status, int *exitcode, apr_proc_t *ret, - apr_pool_t *p); -#endif - -/** - * Log why a child died to the error log, if the child died without the - * parent signalling it. - * @param pid The child that has died - * @param status The status returned from ap_wait_or_timeout - * @return 0 on success, APEXIT_CHILDFATAL if MPM should terminate - */ -#ifdef AP_MPM_WANT_PROCESS_CHILD_STATUS -int ap_process_child_status(apr_proc_t *pid, apr_exit_why_e why, int status); -#endif - -#if defined(TCP_NODELAY) && !defined(MPE) && !defined(TPF) -/** - * Turn off the nagle algorithm for the specified socket. The nagle algorithm - * says that we should delay sending partial packets in the hopes of getting - * more data. There are bad interactions between persistent connections and - * Nagle's algorithm that have severe performance penalties. - * @param s The socket to disable nagle for. - */ -void ap_sock_disable_nagle(apr_socket_t *s); -#else -#define ap_sock_disable_nagle(s) /* NOOP */ -#endif - -#ifdef HAVE_GETPWNAM -/** - * Convert a username to a numeric ID - * @param name The name to convert - * @return The user id corresponding to a name - * @deffunc uid_t ap_uname2id(const char *name) - */ -AP_DECLARE(uid_t) ap_uname2id(const char *name); -#endif - -#ifdef HAVE_GETGRNAM -/** - * Convert a group name to a numeric ID - * @param name The name to convert - * @return The group id corresponding to a name - * @deffunc gid_t ap_gname2id(const char *name) - */ -AP_DECLARE(gid_t) ap_gname2id(const char *name); -#endif - -#define AP_MPM_HARD_LIMITS_FILE APACHE_MPM_DIR "/mpm_default.h" - -#ifdef AP_MPM_USES_POD - -typedef struct ap_pod_t ap_pod_t; - -struct ap_pod_t { - apr_file_t *pod_in; - apr_file_t *pod_out; - apr_pool_t *p; - apr_sockaddr_t *sa; -}; - -/** - * Open the pipe-of-death. The pipe of death is used to tell all child - * processes that it is time to die gracefully. - * @param p The pool to use for allocating the pipe - */ -AP_DECLARE(apr_status_t) ap_mpm_pod_open(apr_pool_t *p, ap_pod_t **pod); - -/** - * Check the pipe to determine if the process has been signalled to die. - */ -AP_DECLARE(apr_status_t) ap_mpm_pod_check(ap_pod_t *pod); - -/** - * Close the pipe-of-death - */ -AP_DECLARE(apr_status_t) ap_mpm_pod_close(ap_pod_t *pod); - -/** - * Write data to the pipe-of-death, signalling that one child process - * should die. - * @param p The pool to use when allocating any required structures. - */ -AP_DECLARE(apr_status_t) ap_mpm_pod_signal(ap_pod_t *pod); - -/** - * Write data to the pipe-of-death, signalling that all child process - * should die. - * @param p The pool to use when allocating any required structures. - * @param num The number of child processes to kill - */ -AP_DECLARE(void) ap_mpm_pod_killpg(ap_pod_t *pod, int num); -#endif - -/* - * These data members are common to all mpms. Each new mpm - * should either use the appropriate ap_mpm_set_* function - * in their command table or create their own for custom or - * OS specific needs. These should work for most. - */ - -/** - * The maximum number of requests each child thread or - * process handles before dying off - */ -#ifdef AP_MPM_WANT_SET_MAX_REQUESTS -extern int ap_max_requests_per_child; -const char *ap_mpm_set_max_requests(cmd_parms *cmd, void *dummy, - const char *arg); -#endif - -/** - * The filename used to store the process id. - */ -#ifdef AP_MPM_WANT_SET_PIDFILE -extern const char *ap_pid_fname; -const char *ap_mpm_set_pidfile(cmd_parms *cmd, void *dummy, - const char *arg); -#endif - -/** - * The name of lockfile used when Apache needs to lock the accept() call. - */ -#ifdef AP_MPM_WANT_SET_LOCKFILE -extern const char *ap_lock_fname; -const char *ap_mpm_set_lockfile(cmd_parms *cmd, void *dummy, - const char *arg); -#endif - -/** - * The system mutex implementation to use for the accept mutex. - */ -#ifdef AP_MPM_WANT_SET_ACCEPT_LOCK_MECH -extern apr_lockmech_e ap_accept_lock_mech; -extern const char ap_valid_accept_mutex_string[]; -const char *ap_mpm_set_accept_lock_mech(cmd_parms *cmd, void *dummy, - const char *arg); -#endif - -/* - * Set the scorboard file. - */ -#ifdef AP_MPM_WANT_SET_SCOREBOARD -const char *ap_mpm_set_scoreboard(cmd_parms *cmd, void *dummy, - const char *arg); -#endif - -/* - * The directory that the server changes directory to dump core. - */ -#ifdef AP_MPM_WANT_SET_COREDUMPDIR -extern char ap_coredump_dir[MAX_STRING_LEN]; -extern int ap_coredumpdir_configured; -const char *ap_mpm_set_coredumpdir(cmd_parms *cmd, void *dummy, - const char *arg); -#endif - -#ifdef AP_MPM_WANT_SIGNAL_SERVER -int ap_signal_server(int *, apr_pool_t *); -void ap_mpm_rewrite_args(process_rec *); -#endif - -#ifdef AP_MPM_WANT_SET_MAX_MEM_FREE -extern apr_uint32_t ap_max_mem_free; -extern const char *ap_mpm_set_max_mem_free(cmd_parms *cmd, void *dummy, - const char *arg); -#endif - -#ifdef AP_MPM_WANT_FATAL_SIGNAL_HANDLER -extern apr_status_t ap_fatal_signal_setup(server_rec *s, apr_pool_t *pconf); -extern apr_status_t ap_fatal_signal_child_setup(server_rec *s); -#endif - -#if AP_ENABLE_EXCEPTION_HOOK -extern const char *ap_mpm_set_exception_hook(cmd_parms *cmd, void *dummy, - const char *arg); -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* !APACHE_MPM_COMMON_H */ |