コード例 #1
0
ファイル: ngx_file.c プロジェクト: RocFang/nginx-code-reading
ngx_int_t
ngx_ext_rename_file(ngx_str_t *src, ngx_str_t *to, ngx_ext_rename_file_t *ext)
{
    u_char           *name;
    ngx_err_t         err;
    ngx_copy_file_t   cf;

#if !(NGX_WIN32)

    if (ext->access) {
        if (ngx_change_file_access(src->data, ext->access) == NGX_FILE_ERROR) {
            ngx_log_error(NGX_LOG_CRIT, ext->log, ngx_errno,
                          ngx_change_file_access_n " \"%s\" failed", src->data);
            err = 0;
            goto failed;
        }
    }

#endif

    if (ext->time != -1) {
        if (ngx_set_file_time(src->data, ext->fd, ext->time) != NGX_OK) {
            ngx_log_error(NGX_LOG_CRIT, ext->log, ngx_errno,
                          ngx_set_file_time_n " \"%s\" failed", src->data);
            err = 0;
            goto failed;
        }
    }

    if (ngx_rename_file(src->data, to->data) != NGX_FILE_ERROR) {
        return NGX_OK;
    }

    err = ngx_errno;

    if (err == NGX_ENOPATH) {

        if (!ext->create_path) {
            goto failed;
        }

        err = ngx_create_full_path(to->data, ngx_dir_access(ext->path_access));

        if (err) {
            ngx_log_error(NGX_LOG_CRIT, ext->log, err,
                          ngx_create_dir_n " \"%s\" failed", to->data);
            err = 0;
            goto failed;
        }

        if (ngx_rename_file(src->data, to->data) != NGX_FILE_ERROR) {
            return NGX_OK;
        }

        err = ngx_errno;
    }

#if (NGX_WIN32)
//deleted by fangpeng
#endif

    if (err == NGX_EXDEV) {

        cf.size = -1;
        cf.buf_size = 0;
        cf.access = ext->access;
        cf.time = ext->time;
        cf.log = ext->log;

        name = ngx_alloc(to->len + 1 + 10 + 1, ext->log);
        if (name == NULL) {
            return NGX_ERROR;
        }

        (void) ngx_sprintf(name, "%*s.%010uD%Z", to->len, to->data,
                           (uint32_t) ngx_next_temp_number(0));

        if (ngx_copy_file(src->data, name, &cf) == NGX_OK) {

            if (ngx_rename_file(name, to->data) != NGX_FILE_ERROR) {
                ngx_free(name);

                if (ngx_delete_file(src->data) == NGX_FILE_ERROR) {
                    ngx_log_error(NGX_LOG_CRIT, ext->log, ngx_errno,
                                  ngx_delete_file_n " \"%s\" failed",
                                  src->data);
                    return NGX_ERROR;
                }

                return NGX_OK;
            }

            ngx_log_error(NGX_LOG_CRIT, ext->log, ngx_errno,
                          ngx_rename_file_n " \"%s\" to \"%s\" failed",
                          name, to->data);

            if (ngx_delete_file(name) == NGX_FILE_ERROR) {
                ngx_log_error(NGX_LOG_CRIT, ext->log, ngx_errno,
                              ngx_delete_file_n " \"%s\" failed", name);

            }
        }

        ngx_free(name);

        err = 0;
    }

failed:

    if (ext->delete_file) {
        if (ngx_delete_file(src->data) == NGX_FILE_ERROR) {
            ngx_log_error(NGX_LOG_CRIT, ext->log, ngx_errno,
                          ngx_delete_file_n " \"%s\" failed", src->data);
        }
    }

    if (err) {
        ngx_log_error(NGX_LOG_CRIT, ext->log, err,
                      ngx_rename_file_n " \"%s\" to \"%s\" failed",
                      src->data, to->data);
    }

    return NGX_ERROR;
}
コード例 #2
0
ファイル: ngx_file.c プロジェクト: ThomasLau/nginxsrp
ngx_int_t
ngx_ext_rename_file(ngx_str_t *src, ngx_str_t *to, ngx_ext_rename_file_t *ext)
{
    ngx_err_t  err;

#if !(NGX_WIN32)

    if (ext->access) {
        if (ngx_change_file_access(src->data, ext->access) == NGX_FILE_ERROR) {
            ngx_log_error(NGX_LOG_CRIT, ext->log, ngx_errno,
                          ngx_change_file_access_n " \"%s\" failed", src->data);
            err = 0;
            goto failed;
        }
    }

#endif

    if (ext->time != -1) {
        if (ngx_set_file_time(src->data, ext->fd, ext->time) != NGX_OK) {
            ngx_log_error(NGX_LOG_CRIT, ext->log, ngx_errno,
                          ngx_set_file_time_n " \"%s\" failed", src->data);
            err = 0;
            goto failed;
        }
    }

    if (ngx_rename_file(src->data, to->data) != NGX_FILE_ERROR) {
        return NGX_OK;
    }

    err = ngx_errno;

    if (err
#if (NGX_WIN32)
            == ERROR_PATH_NOT_FOUND
#else
            == NGX_ENOENT
#endif
       )
    {
        if (!ext->create_path) {
            goto failed;
        }

        err = ngx_create_full_path(to->data, ngx_dir_access(ext->path_access));

        if (err) {
            ngx_log_error(NGX_LOG_CRIT, ext->log, err,
                          ngx_create_dir_n " \"%s\" failed", to->data);
            err = 0;
            goto failed;
        }

        if (ngx_rename_file(src->data, to->data) != NGX_FILE_ERROR) {
            return NGX_OK;
        }

        err = ngx_errno;
        goto failed;
    }

#if (NGX_WIN32)

    if (err == NGX_EEXIST) {
        if (ngx_win32_rename_file(src, to, ext->log) == NGX_OK) {

            if (ngx_rename_file(src->data, to->data) != NGX_FILE_ERROR) {
                return NGX_OK;
            }

            err = ngx_errno;

        } else {
            err = 0;
        }
    }

#endif

failed:

    if (ext->delete_file) {
        if (ngx_delete_file(src->data) == NGX_FILE_ERROR) {
            ngx_log_error(NGX_LOG_CRIT, ext->log, ngx_errno,
                          ngx_delete_file_n " \"%s\" failed", src->data);
        }
    }

    if (err && ext->log_rename_error) {
        ngx_log_error(NGX_LOG_CRIT, ext->log, err,
                      ngx_rename_file_n " \"%s\" to \"%s\" failed",
                      src->data, to->data);
    }

    ext->rename_error = err;

    return NGX_ERROR;
}
コード例 #3
0
ファイル: ngx_cycle.c プロジェクト: 247687009/tengine
ngx_cycle_t *
ngx_init_cycle(ngx_cycle_t *old_cycle)
{
    void                *rv;
    char               **senv, **env;
    u_char              *temppath;
    ngx_err_t            err;
    ngx_uint_t           i, n;
    ngx_log_t           *log;
    ngx_time_t          *tp;
    ngx_conf_t           conf;
    ngx_pool_t          *pool;
    ngx_cycle_t         *cycle, **old;
    ngx_command_t       *cmd;
    ngx_shm_zone_t      *shm_zone, *oshm_zone;
    ngx_list_part_t     *part, *opart;
    ngx_open_file_t     *file;
    ngx_listening_t     *ls, *nls;
    ngx_core_conf_t     *ccf, *old_ccf;
    ngx_core_module_t   *module;
    char                 hostname[NGX_MAXHOSTNAMELEN];

    ngx_timezone_update();

    /* force localtime update with a new timezone */

    tp = ngx_timeofday();
    tp->sec = 0;

    ngx_time_update();

    ngx_increase_pipe_generation();


    log = old_cycle->log;

    pool = ngx_create_pool(NGX_CYCLE_POOL_SIZE, log);
    if (pool == NULL) {
        return NULL;
    }
    pool->log = log;

    cycle = ngx_pcalloc(pool, sizeof(ngx_cycle_t));
    if (cycle == NULL) {
        ngx_destroy_pool(pool);
        return NULL;
    }

    cycle->pool = pool;
    cycle->log = log;
    cycle->old_cycle = old_cycle;

    cycle->conf_prefix.len = old_cycle->conf_prefix.len;
    cycle->conf_prefix.data = ngx_pstrdup(pool, &old_cycle->conf_prefix);
    if (cycle->conf_prefix.data == NULL) {
        ngx_destroy_pool(pool);
        return NULL;
    }

    cycle->prefix.len = old_cycle->prefix.len;
    cycle->prefix.data = ngx_pstrdup(pool, &old_cycle->prefix);
    if (cycle->prefix.data == NULL) {
        ngx_destroy_pool(pool);
        return NULL;
    }

    cycle->conf_file.len = old_cycle->conf_file.len;
    cycle->conf_file.data = ngx_pnalloc(pool, old_cycle->conf_file.len + 1);
    if (cycle->conf_file.data == NULL) {
        ngx_destroy_pool(pool);
        return NULL;
    }
    ngx_cpystrn(cycle->conf_file.data, old_cycle->conf_file.data,
                old_cycle->conf_file.len + 1);

    cycle->conf_param.len = old_cycle->conf_param.len;
    cycle->conf_param.data = ngx_pstrdup(pool, &old_cycle->conf_param);
    if (cycle->conf_param.data == NULL) {
        ngx_destroy_pool(pool);
        return NULL;
    }


    n = old_cycle->paths.nelts ? old_cycle->paths.nelts : 10;

    cycle->paths.elts = ngx_pcalloc(pool, n * sizeof(ngx_path_t *));
    if (cycle->paths.elts == NULL) {
        ngx_destroy_pool(pool);
        return NULL;
    }

    cycle->paths.nelts = 0;
    cycle->paths.size = sizeof(ngx_path_t *);
    cycle->paths.nalloc = n;
    cycle->paths.pool = pool;


    if (old_cycle->open_files.part.nelts) {
        n = old_cycle->open_files.part.nelts;
        for (part = old_cycle->open_files.part.next; part; part = part->next) {
            n += part->nelts;
        }

    } else {
        n = 20;
    }

    if (ngx_list_init(&cycle->open_files, pool, n, sizeof(ngx_open_file_t))
        != NGX_OK)
    {
        ngx_destroy_pool(pool);
        return NULL;
    }


    if (old_cycle->shared_memory.part.nelts) {
        n = old_cycle->shared_memory.part.nelts;
        for (part = old_cycle->shared_memory.part.next; part; part = part->next)
        {
            n += part->nelts;
        }

    } else {
        n = 1;
    }

    if (ngx_list_init(&cycle->shared_memory, pool, n, sizeof(ngx_shm_zone_t))
        != NGX_OK)
    {
        ngx_destroy_pool(pool);
        return NULL;
    }

    n = old_cycle->listening.nelts ? old_cycle->listening.nelts : 10;

    cycle->listening.elts = ngx_pcalloc(pool, n * sizeof(ngx_listening_t));
    if (cycle->listening.elts == NULL) {
        ngx_destroy_pool(pool);
        return NULL;
    }

    cycle->listening.nelts = 0;
    cycle->listening.size = sizeof(ngx_listening_t);
    cycle->listening.nalloc = n;
    cycle->listening.pool = pool;


    ngx_queue_init(&cycle->reusable_connections_queue);


    cycle->conf_ctx = ngx_pcalloc(pool, ngx_max_module * sizeof(void *));
    if (cycle->conf_ctx == NULL) {
        ngx_destroy_pool(pool);
        return NULL;
    }


    if (gethostname(hostname, NGX_MAXHOSTNAMELEN) == -1) {
        ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "gethostname() failed");
        ngx_destroy_pool(pool);
        return NULL;
    }

    /* on Linux gethostname() silently truncates name that does not fit */

    hostname[NGX_MAXHOSTNAMELEN - 1] = '\0';
    cycle->hostname.len = ngx_strlen(hostname);

    cycle->hostname.data = ngx_pnalloc(pool, cycle->hostname.len);
    if (cycle->hostname.data == NULL) {
        ngx_destroy_pool(pool);
        return NULL;
    }

    ngx_strlow(cycle->hostname.data, (u_char *) hostname, cycle->hostname.len);


    for (i = 0; ngx_modules[i]; i++) {
        if (ngx_modules[i]->type != NGX_CORE_MODULE) {
            continue;
        }

        module = ngx_modules[i]->ctx;

        if (module->create_conf) {
            rv = module->create_conf(cycle);
            if (rv == NULL) {
                ngx_destroy_pool(pool);
                return NULL;
            }
            cycle->conf_ctx[ngx_modules[i]->index] = rv;
        }
    }


    senv = environ;


    ngx_memzero(&conf, sizeof(ngx_conf_t));
    /* STUB: init array ? */
    conf.args = ngx_array_create(pool, 10, sizeof(ngx_str_t));
    if (conf.args == NULL) {
        ngx_destroy_pool(pool);
        return NULL;
    }

    conf.temp_pool = ngx_create_pool(NGX_CYCLE_POOL_SIZE, log);
    if (conf.temp_pool == NULL) {
        ngx_destroy_pool(pool);
        return NULL;
    }


    conf.ctx = cycle->conf_ctx;
    conf.cycle = cycle;
    conf.pool = pool;
    conf.log = log;
    conf.module_type = NGX_CORE_MODULE;
    conf.cmd_type = NGX_MAIN_CONF;

#if 0
    log->log_level = NGX_LOG_DEBUG_ALL;
#endif

    if (ngx_conf_param(&conf) != NGX_CONF_OK) {
        environ = senv;
        ngx_destroy_cycle_pools(&conf);
        return NULL;
    }

    if (ngx_conf_parse(&conf, &cycle->conf_file) != NGX_CONF_OK) {
        environ = senv;
        ngx_destroy_cycle_pools(&conf);
        return NULL;
    }

    if (ngx_show_directives) {
        ngx_log_stderr(0, "all available directives:");

        for (i = 0; ngx_module_names[i]; i++) {
            ngx_log_stderr(0, "%s:", ngx_module_names[i]);

            cmd = ngx_modules[i]->commands;
            if(cmd == NULL) {
                continue;
            }

            for ( /* void */ ; cmd->name.len; cmd++) {
                ngx_log_stderr(0, "    %V", &cmd->name);
            }
        }

#if (NGX_DSO)
        ngx_show_dso_directives(&conf);
#endif
        return cycle;
    }

    if (ngx_show_modules) {
        ngx_log_stderr(0, "loaded modules:");

        for (i = 0; ngx_module_names[i]; i++) {

#if (NGX_DSO)
            ngx_uint_t major, minor;

            if (ngx_is_dynamic_module(&conf,
                                      ngx_module_names[i], &major,
                                      &minor) == NGX_OK)
            {
                ngx_log_stderr(0, "    %s (shared, %ui.%ui)",
                               ngx_module_names[i],
                               major, minor);
            } else {
#endif
            ngx_log_stderr(0, "    %s (static)", ngx_module_names[i]);

#if (NGX_DSO)
            }
#endif
        }

        ngx_destroy_cycle_pools(&conf);
        return cycle;
    }

    if (ngx_test_config && !ngx_quiet_mode) {
        ngx_log_stderr(0, "the configuration file %s syntax is ok",
                       cycle->conf_file.data);
    }

    for (i = 0; ngx_modules[i]; i++) {
        if (ngx_modules[i]->type != NGX_CORE_MODULE) {
            continue;
        }

        module = ngx_modules[i]->ctx;

        if (module->init_conf) {
            if (module->init_conf(cycle, cycle->conf_ctx[ngx_modules[i]->index])
                == NGX_CONF_ERROR)
            {
                environ = senv;
                ngx_destroy_cycle_pools(&conf);
                return NULL;
            }
        }
    }

    if (ngx_process == NGX_PROCESS_SIGNALLER) {
        return cycle;
    }

    ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);

    if (ngx_test_config) {

        if (ngx_create_pidfile(&ccf->pid, log) != NGX_OK) {
            goto failed;
        }

    } else if (!ngx_is_init_cycle(old_cycle)) {

        /*
         * we do not create the pid file in the first ngx_init_cycle() call
         * because we need to write the demonized process pid
         */

        old_ccf = (ngx_core_conf_t *) ngx_get_conf(old_cycle->conf_ctx,
                                                   ngx_core_module);
        if (ccf->pid.len != old_ccf->pid.len
            || ngx_strcmp(ccf->pid.data, old_ccf->pid.data) != 0)
        {
            /* new pid file name */

            if (ngx_create_pidfile(&ccf->pid, log) != NGX_OK) {
                goto failed;
            }

            ngx_delete_pidfile(old_cycle);
        }
    }


    if (ngx_test_lockfile(cycle->lock_file.data, log) != NGX_OK) {
        goto failed;
    }


    if (ngx_create_paths(cycle, ccf->user) != NGX_OK) {
        goto failed;
    }


    if (ngx_log_open_default(cycle) != NGX_OK) {
        goto failed;
    }


    /* open pipes */

    if (!ngx_is_init_cycle(old_cycle)) {
        if (ngx_open_pipes(cycle) == NGX_ERROR) {
            ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, "can not open pipes");
            goto failed;
        }
    }


    /* open the new files */

    part = &cycle->open_files.part;
    file = part->elts;

    temppath = ngx_palloc(conf.temp_pool, NGX_MAX_PATH);

    for (i = 0; /* void */ ; i++) {

        if (i >= part->nelts) {
            if (part->next == NULL) {
                break;
            }
            part = part->next;
            file = part->elts;
            i = 0;
        }

        if (file[i].name.len == 0) {
            continue;
        }

        if (file[i].name.len >= NGX_MAX_PATH) {
            ngx_log_error(NGX_LOG_EMERG, log, 0,
                          "path \"%s\" is too long",
                          file[i].name.data);
            goto failed;
        }

        ngx_cpystrn(temppath, file[i].name.data, file[i].name.len + 1);

        err = ngx_create_full_path(temppath, 0755);
        if (err != 0) {
            ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
                          ngx_create_dir_n " \"%s\" failed",
                          file[i].name.data);
            goto failed;
        }

        file[i].fd = ngx_open_file(file[i].name.data,
                                   NGX_FILE_APPEND,
                                   NGX_FILE_CREATE_OR_OPEN,
                                   NGX_FILE_DEFAULT_ACCESS);

        ngx_log_debug3(NGX_LOG_DEBUG_CORE, log, 0,
                       "log: %p %d \"%s\"",
                       &file[i], file[i].fd, file[i].name.data);

        if (file[i].fd == NGX_INVALID_FILE) {
            ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
                          ngx_open_file_n " \"%s\" failed",
                          file[i].name.data);
            goto failed;
        }

#if !(NGX_WIN32)
        if (fcntl(file[i].fd, F_SETFD, FD_CLOEXEC) == -1) {
            ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
                          "fcntl(FD_CLOEXEC) \"%s\" failed",
                          file[i].name.data);
            goto failed;
        }
#endif
    }

#if (NGX_SYSLOG)

    if (cycle->log->syslog != NULL
        && cycle->log->syslog->fd != NGX_INVALID_FILE)
    {
        ngx_close_socket(cycle->log->syslog->fd);
    }

#endif

    cycle->log = &cycle->new_log;
    pool->log = &cycle->new_log;


    /* create shared memory */

    part = &cycle->shared_memory.part;
    shm_zone = part->elts;

    for (i = 0; /* void */ ; i++) {

        if (i >= part->nelts) {
            if (part->next == NULL) {
                break;
            }
            part = part->next;
            shm_zone = part->elts;
            i = 0;
        }

        if (shm_zone[i].shm.size == 0) {
            ngx_log_error(NGX_LOG_EMERG, log, 0,
                          "zero size shared memory zone \"%V\"",
                          &shm_zone[i].shm.name);
            goto failed;
        }

        shm_zone[i].shm.log = cycle->log;

        opart = &old_cycle->shared_memory.part;
        oshm_zone = opart->elts;

        for (n = 0; /* void */ ; n++) {

            if (n >= opart->nelts) {
                if (opart->next == NULL) {
                    break;
                }
                opart = opart->next;
                oshm_zone = opart->elts;
                n = 0;
            }

            if (shm_zone[i].shm.name.len != oshm_zone[n].shm.name.len) {
                continue;
            }

            if (ngx_strncmp(shm_zone[i].shm.name.data,
                            oshm_zone[n].shm.name.data,
                            shm_zone[i].shm.name.len)
                != 0)
            {
                continue;
            }

            if (shm_zone[i].tag == oshm_zone[n].tag
                && shm_zone[i].shm.size == oshm_zone[n].shm.size)
            {
                shm_zone[i].shm.addr = oshm_zone[n].shm.addr;

                if (shm_zone[i].init(&shm_zone[i], oshm_zone[n].data)
                    != NGX_OK)
                {
                    goto failed;
                }

                goto shm_zone_found;
            }

            ngx_shm_free(&oshm_zone[n].shm);

            break;
        }

        if (ngx_shm_alloc(&shm_zone[i].shm) != NGX_OK) {
            goto failed;
        }

        if (ngx_init_zone_pool(cycle, &shm_zone[i]) != NGX_OK) {
            goto failed;
        }

        if (shm_zone[i].init(&shm_zone[i], NULL) != NGX_OK) {
            goto failed;
        }

    shm_zone_found:

        continue;
    }


    /* handle the listening sockets */

    if (old_cycle->listening.nelts) {
        ls = old_cycle->listening.elts;
        for (i = 0; i < old_cycle->listening.nelts; i++) {
            ls[i].remain = 0;
        }

        nls = cycle->listening.elts;
        for (n = 0; n < cycle->listening.nelts; n++) {

            for (i = 0; i < old_cycle->listening.nelts; i++) {
                if (ls[i].ignore) {
                    continue;
                }

                if (ngx_cmp_sockaddr(nls[n].sockaddr, nls[n].socklen,
                                     ls[i].sockaddr, ls[i].socklen, 1)
                    == NGX_OK)
                {
                    nls[n].fd = ls[i].fd;
                    nls[n].previous = &ls[i];
                    ls[i].remain = 1;

                    if (ls[i].backlog != nls[n].backlog) {
                        nls[n].listen = 1;
                    }

#if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)

                    /*
                     * FreeBSD, except the most recent versions,
                     * could not remove accept filter
                     */
                    nls[n].deferred_accept = ls[i].deferred_accept;

                    if (ls[i].accept_filter && nls[n].accept_filter) {
                        if (ngx_strcmp(ls[i].accept_filter,
                                       nls[n].accept_filter)
                            != 0)
                        {
                            nls[n].delete_deferred = 1;
                            nls[n].add_deferred = 1;
                        }

                    } else if (ls[i].accept_filter) {
                        nls[n].delete_deferred = 1;

                    } else if (nls[n].accept_filter) {
                        nls[n].add_deferred = 1;
                    }
#endif

#if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)

                    if (ls[i].deferred_accept && !nls[n].deferred_accept) {
                        nls[n].delete_deferred = 1;

                    } else if (ls[i].deferred_accept != nls[n].deferred_accept)
                    {
                        nls[n].add_deferred = 1;
                    }
#endif
                    break;
                }
            }

            if (nls[n].fd == (ngx_socket_t) -1) {
                nls[n].open = 1;
#if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
                if (nls[n].accept_filter) {
                    nls[n].add_deferred = 1;
                }
#endif
#if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
                if (nls[n].deferred_accept) {
                    nls[n].add_deferred = 1;
                }
#endif
            }
        }

    } else {
        ls = cycle->listening.elts;
        for (i = 0; i < cycle->listening.nelts; i++) {
            ls[i].open = 1;
#if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
            if (ls[i].accept_filter) {
                ls[i].add_deferred = 1;
            }
#endif
#if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
            if (ls[i].deferred_accept) {
                ls[i].add_deferred = 1;
            }
#endif
        }
    }

    if (ngx_open_listening_sockets(cycle) != NGX_OK) {
        goto failed;
    }

    if (!ngx_test_config) {
        ngx_configure_listening_sockets(cycle);
    }


    /* commit the new cycle configuration */

    if (!ngx_use_stderr) {
        (void) ngx_log_redirect_stderr(cycle);
    }

    pool->log = cycle->log;

    for (i = 0; ngx_modules[i]; i++) {
        if (ngx_modules[i]->init_module) {
            if (ngx_modules[i]->init_module(cycle) != NGX_OK) {
                /* fatal */
                exit(1);
            }
        }
    }


    /* close and delete stuff that lefts from an old cycle */

    /* free the unnecessary shared memory */

    opart = &old_cycle->shared_memory.part;
    oshm_zone = opart->elts;

    for (i = 0; /* void */ ; i++) {

        if (i >= opart->nelts) {
            if (opart->next == NULL) {
                goto old_shm_zone_done;
            }
            opart = opart->next;
            oshm_zone = opart->elts;
            i = 0;
        }

        part = &cycle->shared_memory.part;
        shm_zone = part->elts;

        for (n = 0; /* void */ ; n++) {

            if (n >= part->nelts) {
                if (part->next == NULL) {
                    break;
                }
                part = part->next;
                shm_zone = part->elts;
                n = 0;
            }

            if (oshm_zone[i].shm.name.len == shm_zone[n].shm.name.len
                && ngx_strncmp(oshm_zone[i].shm.name.data,
                               shm_zone[n].shm.name.data,
                               oshm_zone[i].shm.name.len)
                == 0)
            {
                goto live_shm_zone;
            }
        }

        ngx_shm_free(&oshm_zone[i].shm);

    live_shm_zone:

        continue;
    }

old_shm_zone_done:


    /* close the unnecessary listening sockets */

    ls = old_cycle->listening.elts;
    for (i = 0; i < old_cycle->listening.nelts; i++) {

        if (ls[i].remain || ls[i].fd == (ngx_socket_t) -1) {
            continue;
        }

        if (ngx_close_socket(ls[i].fd) == -1) {
            ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
                          ngx_close_socket_n " listening socket on %V failed",
                          &ls[i].addr_text);
        }

#if (NGX_HAVE_UNIX_DOMAIN)

        if (ls[i].sockaddr->sa_family == AF_UNIX) {
            u_char  *name;

            name = ls[i].addr_text.data + sizeof("unix:") - 1;

            ngx_log_error(NGX_LOG_WARN, cycle->log, 0,
                          "deleting socket %s", name);

            if (ngx_delete_file(name) == NGX_FILE_ERROR) {
                ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno,
                              ngx_delete_file_n " %s failed", name);
            }
        }

#endif
    }


    /* close the unnecessary open files */

    part = &old_cycle->open_files.part;
    file = part->elts;

    for (i = 0; /* void */ ; i++) {

        if (i >= part->nelts) {
            if (part->next == NULL) {
                break;
            }
            part = part->next;
            file = part->elts;
            i = 0;
        }

        if (file[i].fd == NGX_INVALID_FILE || file[i].fd == ngx_stderr) {
            continue;
        }

        if (ngx_close_file(file[i].fd) == NGX_FILE_ERROR) {
            ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
                          ngx_close_file_n " \"%s\" failed",
                          file[i].name.data);
        }
    }

    ngx_destroy_pool(conf.temp_pool);

    if (ngx_process == NGX_PROCESS_MASTER || ngx_is_init_cycle(old_cycle)) {

        /*
         * perl_destruct() frees environ, if it is not the same as it was at
         * perl_construct() time, therefore we save the previous cycle
         * environment before ngx_conf_parse() where it will be changed.
         */

        env = environ;
        environ = senv;

        ngx_destroy_pool(old_cycle->pool);
        cycle->old_cycle = NULL;

        environ = env;

        return cycle;
    }


    if (ngx_temp_pool == NULL) {
        ngx_temp_pool = ngx_create_pool(128, cycle->log);
        if (ngx_temp_pool == NULL) {
            ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
                          "could not create ngx_temp_pool");
            exit(1);
        }

        n = 10;
        ngx_old_cycles.elts = ngx_pcalloc(ngx_temp_pool,
                                          n * sizeof(ngx_cycle_t *));
        if (ngx_old_cycles.elts == NULL) {
            exit(1);
        }
        ngx_old_cycles.nelts = 0;
        ngx_old_cycles.size = sizeof(ngx_cycle_t *);
        ngx_old_cycles.nalloc = n;
        ngx_old_cycles.pool = ngx_temp_pool;

        ngx_cleaner_event.handler = ngx_clean_old_cycles;
        ngx_cleaner_event.log = cycle->log;
        ngx_cleaner_event.data = &dumb;
        dumb.fd = (ngx_socket_t) -1;
    }

    ngx_temp_pool->log = cycle->log;

    old = ngx_array_push(&ngx_old_cycles);
    if (old == NULL) {
        exit(1);
    }
    *old = old_cycle;

    if (!ngx_cleaner_event.timer_set) {
        ngx_add_timer(&ngx_cleaner_event, 30000);
        ngx_cleaner_event.timer_set = 1;
    }

    return cycle;


failed:

    if (!ngx_is_init_cycle(old_cycle)) {
        old_ccf = (ngx_core_conf_t *) ngx_get_conf(old_cycle->conf_ctx,
                                                   ngx_core_module);
        if (old_ccf->environment) {
            environ = old_ccf->environment;
        }
    }

    /* rollback the new cycle configuration */

    part = &cycle->open_files.part;
    file = part->elts;

    for (i = 0; /* void */ ; i++) {

        if (i >= part->nelts) {
            if (part->next == NULL) {
                break;
            }
            part = part->next;
            file = part->elts;
            i = 0;
        }

        if (file[i].fd == NGX_INVALID_FILE || file[i].fd == ngx_stderr) {
            continue;
        }

        if (ngx_close_file(file[i].fd) == NGX_FILE_ERROR) {
            ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
                          ngx_close_file_n " \"%s\" failed",
                          file[i].name.data);
        }
    }

    ngx_close_pipes();

    if (ngx_test_config) {
        ngx_destroy_cycle_pools(&conf);
        return NULL;
    }

    ls = cycle->listening.elts;
    for (i = 0; i < cycle->listening.nelts; i++) {
        if (ls[i].fd == (ngx_socket_t) -1 || !ls[i].open) {
            continue;
        }

        if (ngx_close_socket(ls[i].fd) == -1) {
            ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
                          ngx_close_socket_n " %V failed",
                          &ls[i].addr_text);
        }
    }

    ngx_destroy_cycle_pools(&conf);

    return NULL;
}
コード例 #4
0
static ngx_int_t
ngx_rtmp_record_ensure_directory(ngx_rtmp_session_t *s, ngx_str_t *path)
{
    size_t                    len;
    ngx_file_info_t           fi;
    ngx_rtmp_record_ctx_t       *ctx;
    ngx_rtmp_record_app_conf_t  *hacf;

    static u_char  zpath[NGX_MAX_PATH + 1] = {0};

    hacf = ngx_rtmp_get_module_app_conf(s, ngx_rtmp_record_module);

    if (path->len + 1 > sizeof(zpath)) {
        ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, "record: too long path");
        return NGX_ERROR;
    }

    ngx_snprintf(zpath, sizeof(zpath), "%V%Z", path);

    if (ngx_file_info(zpath, &fi) == NGX_FILE_ERROR) {

        if (ngx_errno != NGX_ENOENT) {
            ngx_log_error(NGX_LOG_ERR, s->connection->log, ngx_errno,
                          "record: " ngx_file_info_n " failed on '%V'", path);
            return NGX_ERROR;
        }

        /* ENOENT */

        if (ngx_create_full_path(zpath, NGX_RTMP_RECORD_DIR_ACCESS) == NGX_FILE_ERROR) {
            ngx_log_error(NGX_LOG_ERR, s->connection->log, ngx_errno,
                          "record: " ngx_create_dir_n " failed on '%V'", path);
            return NGX_ERROR;
        }

        ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
                       "record: directory '%V' created", path);

    } else {

        if (!ngx_is_dir(&fi)) {
            ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
                          "record: '%V' exists and is not a directory", path);
            return  NGX_ERROR;
        }

        ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
                       "record: directory '%V' exists", path);
    }

    ctx = ngx_rtmp_get_module_ctx(s, ngx_rtmp_record_module);

    len = path->len;
    if (path->data[len - 1] == '/') {
        len--;
    }

    if (len + 1 + ngx_strlen(ctx->name) + 1 > sizeof(zpath)) {
        ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, "record: too long path");
        return NGX_ERROR;
    }

    ngx_snprintf(zpath, sizeof(zpath) - 1, "%*s/%s%Z", len, path->data,
                 ctx->name);

    if (ngx_file_info(zpath, &fi) != NGX_FILE_ERROR) {

        if (ngx_is_dir(&fi)) {
            ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
                           "record: directory '%s' exists", zpath);
            return NGX_OK;
        }

        ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
                      "record: '%s' exists and is not a directory", zpath);

        return  NGX_ERROR;
    }

    if (ngx_errno != NGX_ENOENT) {
        ngx_log_error(NGX_LOG_ERR, s->connection->log, ngx_errno,
                      "record: " ngx_file_info_n " failed on '%s'", zpath);
        return NGX_ERROR;
    }

    /* NGX_ENOENT */

    if (ngx_create_full_path(zpath, NGX_RTMP_RECORD_DIR_ACCESS) == NGX_FILE_ERROR) {
        ngx_log_error(NGX_LOG_ERR, s->connection->log, ngx_errno,
                      "record: " ngx_create_dir_n " failed on '%s'", zpath);
        return NGX_ERROR;
    }

    ngx_log_debug1(NGX_LOG_DEBUG_RTMP, s->connection->log, 0,
                   "record: directory '%s' created", zpath);

    return NGX_OK;
}