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view src/os/unix/ngx_freebsd_config.h @ 6422:768e287a6f36

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Fixed sendfile in threads (or with aio preload) and subrequests. If sendfile in threads is used, it is possible that multiple subrequests will trigger multiple ngx_linux_sendfile_thread() calls, as operations are only serialized in output chain based on r->aio, that is, on subrequest level. This resulted in "task #N already active" alerts, in particular, when running proxy_store.t with "aio threads; sendfile on;". Fix is to tolerate duplicate calls, with an additional safety check that the file is the same as previously used. The same problem also affects "aio on; sendfile on;" on FreeBSD (previously known as "aio sendfile;"), where aio->preload_handler() could be called multiple times due to similar reasons, resulting in "second aio post" alerts. Fix is the same as well. It is also believed that similar problems can arise if a filter calls the next body filter multiple times for some reason. These are mostly theoretical though.
author Maxim Dounin <mdounin@mdounin.ru>
date Thu, 03 Mar 2016 21:14:12 +0300
parents 7142b04337d6
children 7f035fd1ec7b
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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_FREEBSD_CONFIG_H_INCLUDED_
#define _NGX_FREEBSD_CONFIG_H_INCLUDED_


#include <sys/types.h>
#include <sys/time.h>
#include <unistd.h>
#include <stdarg.h>
#include <stddef.h>             /* offsetof() */
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <errno.h>
#include <string.h>
#include <signal.h>
#include <pwd.h>
#include <grp.h>
#include <dirent.h>
#include <glob.h>
#include <time.h>
#include <sys/param.h>          /* ALIGN() */
#include <sys/mount.h>          /* statfs() */

#include <sys/filio.h>          /* FIONBIO */
#include <sys/uio.h>
#include <sys/stat.h>
#include <fcntl.h>

#include <sys/wait.h>
#include <sys/mman.h>
#include <sys/resource.h>
#include <sched.h>

#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>        /* TCP_NODELAY, TCP_NOPUSH */
#include <arpa/inet.h>
#include <netdb.h>
#include <sys/un.h>

#include <libutil.h>            /* setproctitle() before 4.1 */
#include <osreldate.h>
#include <sys/sysctl.h>

#include <dlfcn.h>


#if __FreeBSD_version < 400017

/*
 * FreeBSD 3.x has no CMSG_SPACE() and CMSG_LEN() and has the broken CMSG_DATA()
 */

#undef  CMSG_SPACE
#define CMSG_SPACE(l)       (ALIGN(sizeof(struct cmsghdr)) + ALIGN(l))

#undef  CMSG_LEN
#define CMSG_LEN(l)         (ALIGN(sizeof(struct cmsghdr)) + (l))

#undef  CMSG_DATA
#define CMSG_DATA(cmsg)     ((u_char *)(cmsg) + ALIGN(sizeof(struct cmsghdr)))

#endif


#include <ngx_auto_config.h>


#if (NGX_HAVE_POSIX_SEM)
#include <semaphore.h>
#endif


#if (NGX_HAVE_POLL)
#include <poll.h>
#endif


#if (NGX_HAVE_KQUEUE)
#include <sys/event.h>
#endif


#if (NGX_HAVE_FILE_AIO)
#include <aio.h>
typedef struct aiocb  ngx_aiocb_t;
#endif


#define NGX_LISTEN_BACKLOG        -1


#ifdef __DragonFly__
#define NGX_KEEPALIVE_FACTOR      1000
#endif


#ifndef IOV_MAX
#define IOV_MAX   1024
#endif


#ifndef NGX_HAVE_INHERITED_NONBLOCK
#define NGX_HAVE_INHERITED_NONBLOCK  1
#endif


#define NGX_HAVE_OS_SPECIFIC_INIT    1
#define NGX_HAVE_DEBUG_MALLOC        1


extern char **environ;
extern char  *malloc_options;


#endif /* _NGX_FREEBSD_CONFIG_H_INCLUDED_ */