upload http

JIRA: BOTTLENECK-10

Change-Id: I7598427ff904df438ce77c2819ee48ac75ffa8da
Signed-off-by: hongbotian <hongbo.tianhongbo@huawei.com>

1 files changed, 298 insertions, 0 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
new file mode 100644
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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.
+ */
+
+/* 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 */