Mercurial > hg > nginx
view src/os/unix/ngx_posix_config.h @ 7534:ac5a741d39cf
Gzip: use zlib to write header and trailer.
When nginx is used with zlib patched with [1], which provides
integration with the future IBM Z hardware deflate acceleration, it ends
up computing CRC32 twice: one time in hardware, which always does this,
and one time in software by explicitly calling crc32().
crc32() calls were added in changesets 133:b27548f540ad ("nginx-0.0.1-
2003-09-24-23:51:12 import") and 134:d57c6835225c ("nginx-0.0.1-
2003-09-26-09:45:21 import") as part of gzip wrapping feature - back
then zlib did not support it.
However, since then gzip wrapping was implemented in zlib v1.2.0.4,
and it's already being used by nginx for log compression.
This patch replaces hand-written gzip wrapping with the one provided by
zlib. It simplifies the code, and makes it avoid computing CRC32 twice
when using hardware acceleration.
[1] https://github.com/madler/zlib/pull/410
author | Ilya Leoshkevich <iii@linux.ibm.com> |
---|---|
date | Fri, 12 Jul 2019 12:43:08 +0200 |
parents | fc0d06224eda |
children | 93bbb9fbf30d |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_POSIX_CONFIG_H_INCLUDED_ #define _NGX_POSIX_CONFIG_H_INCLUDED_ #if (NGX_HPUX) #define _XOPEN_SOURCE #define _XOPEN_SOURCE_EXTENDED 1 #define _HPUX_ALT_XOPEN_SOCKET_API #endif #if (NGX_TRU64) #define _REENTRANT #endif #if (NGX_GNU_HURD) #ifndef _GNU_SOURCE #define _GNU_SOURCE /* accept4() */ #endif #define _FILE_OFFSET_BITS 64 #endif #ifdef __CYGWIN__ #define timezonevar /* timezone is variable */ #define NGX_BROKEN_SCM_RIGHTS 1 #endif #include <sys/types.h> #include <sys/time.h> #if (NGX_HAVE_UNISTD_H) #include <unistd.h> #endif #if (NGX_HAVE_INTTYPES_H) #include <inttypes.h> #endif #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> #if (NGX_HAVE_SYS_PARAM_H) #include <sys/param.h> /* statfs() */ #endif #if (NGX_HAVE_SYS_MOUNT_H) #include <sys/mount.h> /* statfs() */ #endif #if (NGX_HAVE_SYS_STATVFS_H) #include <sys/statvfs.h> /* statvfs() */ #endif #if (NGX_HAVE_SYS_FILIO_H) #include <sys/filio.h> /* FIONBIO */ #endif #include <sys/ioctl.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 */ #include <arpa/inet.h> #include <netdb.h> #include <sys/un.h> #if (NGX_HAVE_LIMITS_H) #include <limits.h> /* IOV_MAX */ #endif #ifdef __CYGWIN__ #include <malloc.h> /* memalign() */ #endif #if (NGX_HAVE_CRYPT_H) #include <crypt.h> #endif #ifndef IOV_MAX #define IOV_MAX 16 #endif #include <ngx_auto_config.h> #if (NGX_HAVE_DLOPEN) #include <dlfcn.h> #endif #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_DEVPOLL) && !(NGX_TEST_BUILD_DEVPOLL) #include <sys/ioctl.h> #include <sys/devpoll.h> #endif #if (NGX_HAVE_FILE_AIO) #include <aio.h> typedef struct aiocb ngx_aiocb_t; #endif #define NGX_LISTEN_BACKLOG 511 #define ngx_debug_init() extern char **environ; #endif /* _NGX_POSIX_CONFIG_H_INCLUDED_ */