Mercurial > hg > nginx-quic
view src/os/unix/ngx_linux_config.h @ 8743:5d09596909c6 stable-1.20
Upstream: fixed timeouts with gRPC, SSL and select (ticket #2229).
With SSL it is possible that an established connection is ready for
reading after the handshake. Further, events might be already disabled
in case of level-triggered event methods. If this happens and
ngx_http_upstream_send_request() blocks waiting for some data from
the upstream, such as flow control in case of gRPC, the connection
will time out due to no read events on the upstream connection.
Fix is to explicitly check the c->read->ready flag if sending request
blocks and post a read event if it is set.
Note that while it is possible to modify ngx_ssl_handshake() to keep
read events active, this won't completely resolve the issue, since
there can be data already received during the SSL handshake
(see 573bd30e46b4).
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Fri, 20 Aug 2021 03:53:56 +0300 |
| parents | 56923e8e01a5 |
| children | bb5152ed045b |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_LINUX_CONFIG_H_INCLUDED_ #define _NGX_LINUX_CONFIG_H_INCLUDED_ #ifndef _GNU_SOURCE #define _GNU_SOURCE /* pread(), pwrite(), gethostname() */ #endif #define _FILE_OFFSET_BITS 64 #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 <sys/vfs.h> /* statfs() */ #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_CORK */ #include <arpa/inet.h> #include <netdb.h> #include <sys/un.h> #include <time.h> /* tzset() */ #include <malloc.h> /* memalign() */ #include <limits.h> /* IOV_MAX */ #include <sys/ioctl.h> #include <crypt.h> #include <sys/utsname.h> /* uname() */ #include <dlfcn.h> #include <ngx_auto_config.h> #if (NGX_HAVE_POSIX_SEM) #include <semaphore.h> #endif #if (NGX_HAVE_SYS_PRCTL_H) #include <sys/prctl.h> #endif #if (NGX_HAVE_SENDFILE64) #include <sys/sendfile.h> #else extern ssize_t sendfile(int s, int fd, int32_t *offset, size_t size); #define NGX_SENDFILE_LIMIT 0x80000000 #endif #if (NGX_HAVE_POLL) #include <poll.h> #endif #if (NGX_HAVE_EPOLL) #include <sys/epoll.h> #endif #if (NGX_HAVE_SYS_EVENTFD_H) #include <sys/eventfd.h> #endif #include <sys/syscall.h> #if (NGX_HAVE_FILE_AIO) #include <linux/aio_abi.h> typedef struct iocb ngx_aiocb_t; #endif #if (NGX_HAVE_CAPABILITIES) #include <linux/capability.h> #endif #define NGX_LISTEN_BACKLOG 511 #ifndef NGX_HAVE_SO_SNDLOWAT /* setsockopt(SO_SNDLOWAT) returns ENOPROTOOPT */ #define NGX_HAVE_SO_SNDLOWAT 0 #endif #ifndef NGX_HAVE_INHERITED_NONBLOCK #define NGX_HAVE_INHERITED_NONBLOCK 0 #endif #define NGX_HAVE_OS_SPECIFIC_INIT 1 #define ngx_debug_init() extern char **environ; #endif /* _NGX_LINUX_CONFIG_H_INCLUDED_ */