Mercurial > hg > nginx-quic
view src/os/win32/ngx_win32_config.h @ 8759:56dec0d4e5b1 quic
QUIC: avoid excessive buffer allocations in stream output.
Previously, when a few bytes were send to a QUIC stream by the application, a
4K buffer was allocated for these bytes. Then a STREAM frame was created and
that entire buffer was used as data for that frame. The frame with the buffer
were in use up until the frame was acked by client. Meanwhile, when more
bytes were send to the stream, more buffers were allocated and assigned as
data to newer STREAM frames. In this scenario most buffer memory is unused.
Now the unused part of the stream output buffer is available for further
stream output while earlier parts of the buffer are waiting to be acked.
This is achieved by splitting the output buffer.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Fri, 24 Dec 2021 18:13:51 +0300 |
parents | efd71d49bde0 |
children | d1aa8cc3e387 |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_WIN32_CONFIG_H_INCLUDED_ #define _NGX_WIN32_CONFIG_H_INCLUDED_ #undef WIN32 #define WIN32 0x0400 #define _WIN32_WINNT 0x0501 #define STRICT #define WIN32_LEAN_AND_MEAN /* enable getenv() and gmtime() in msvc8 */ #define _CRT_SECURE_NO_WARNINGS #define _CRT_SECURE_NO_DEPRECATE /* enable gethostbyname() in msvc2015 */ #if !(NGX_HAVE_INET6) #define _WINSOCK_DEPRECATED_NO_WARNINGS #endif /* * we need to include <windows.h> explicitly before <winsock2.h> because * the warning 4201 is enabled in <windows.h> */ #include <windows.h> #ifdef _MSC_VER #pragma warning(disable:4201) #endif #include <winsock2.h> #include <ws2tcpip.h> /* ipv6 */ #include <mswsock.h> #include <shellapi.h> #include <stddef.h> /* offsetof() */ #ifdef __MINGW64_VERSION_MAJOR /* GCC MinGW-w64 supports _FILE_OFFSET_BITS */ #define _FILE_OFFSET_BITS 64 #elif defined __GNUC__ /* GCC MinGW's stdio.h includes sys/types.h */ #define _OFF_T_ #define __have_typedef_off_t #endif #include <stdio.h> #include <stdlib.h> #include <stdarg.h> #ifdef __GNUC__ #include <stdint.h> #endif #include <ctype.h> #include <locale.h> #ifdef __WATCOMC__ #define _TIME_T_DEFINED typedef long time_t; /* OpenWatcom defines time_t as "unsigned long" */ #endif #include <time.h> /* localtime(), strftime() */ #ifdef _MSC_VER /* the end of the precompiled headers */ #pragma hdrstop #pragma warning(default:4201) /* disable some "-W4" level warnings */ /* 'type cast': from function pointer to data pointer */ #pragma warning(disable:4054) /* 'type cast': from data pointer to function pointer */ #pragma warning(disable:4055) /* 'function' : different 'const' qualifiers */ #pragma warning(disable:4090) /* unreferenced formal parameter */ #pragma warning(disable:4100) /* FD_SET() and FD_CLR(): conditional expression is constant */ #pragma warning(disable:4127) /* conversion from 'type1' to 'type2', possible loss of data */ #pragma warning(disable:4244) /* conversion from 'size_t' to 'type', possible loss of data */ #pragma warning(disable:4267) /* array is too small to include a terminating null character */ #pragma warning(disable:4295) #endif #ifdef __WATCOMC__ /* symbol 'ngx_rbtree_min' has been defined, but not referenced */ #pragma disable_message(202) #endif #ifdef __BORLANDC__ /* the end of the precompiled headers */ #pragma hdrstop /* functions containing (for|while|some if) are not expanded inline */ #pragma warn -8027 /* unreferenced formal parameter */ #pragma warn -8057 /* suspicious pointer arithmetic */ #pragma warn -8072 #endif #include <ngx_auto_config.h> #define ngx_inline __inline #define ngx_cdecl __cdecl #ifdef _MSC_VER typedef unsigned __int32 uint32_t; typedef __int32 int32_t; typedef unsigned __int16 uint16_t; #define ngx_libc_cdecl __cdecl #elif defined __BORLANDC__ typedef unsigned __int32 uint32_t; typedef __int32 int32_t; typedef unsigned __int16 uint16_t; #define ngx_libc_cdecl __cdecl #else /* __WATCOMC__ */ typedef unsigned int uint32_t; typedef int int32_t; typedef unsigned short int uint16_t; #define ngx_libc_cdecl #endif typedef __int64 int64_t; typedef unsigned __int64 uint64_t; #if __BORLANDC__ typedef int intptr_t; typedef u_int uintptr_t; #endif #ifndef __MINGW64_VERSION_MAJOR /* Windows defines off_t as long, which is 32-bit */ typedef __int64 off_t; #define _OFF_T_DEFINED #endif #ifdef __WATCOMC__ /* off_t is redefined by sys/types.h used by zlib.h */ #define __TYPES_H_INCLUDED typedef int dev_t; typedef unsigned int ino_t; #elif __BORLANDC__ /* off_t is redefined by sys/types.h used by zlib.h */ #define __TYPES_H typedef int dev_t; typedef unsigned int ino_t; #endif #ifndef __GNUC__ #ifdef _WIN64 typedef __int64 ssize_t; #else typedef int ssize_t; #endif #endif typedef uint32_t in_addr_t; typedef u_short in_port_t; typedef int sig_atomic_t; #ifdef _WIN64 #define NGX_PTR_SIZE 8 #define NGX_SIZE_T_LEN (sizeof("-9223372036854775808") - 1) #define NGX_MAX_SIZE_T_VALUE 9223372036854775807 #define NGX_TIME_T_LEN (sizeof("-9223372036854775808") - 1) #define NGX_TIME_T_SIZE 8 #define NGX_MAX_TIME_T_VALUE 9223372036854775807 #else #define NGX_PTR_SIZE 4 #define NGX_SIZE_T_LEN (sizeof("-2147483648") - 1) #define NGX_MAX_SIZE_T_VALUE 2147483647 #define NGX_TIME_T_LEN (sizeof("-2147483648") - 1) #define NGX_TIME_T_SIZE 4 #define NGX_MAX_TIME_T_VALUE 2147483647 #endif #define NGX_OFF_T_LEN (sizeof("-9223372036854775807") - 1) #define NGX_MAX_OFF_T_VALUE 9223372036854775807 #define NGX_SIG_ATOMIC_T_SIZE 4 #define NGX_HAVE_LITTLE_ENDIAN 1 #define NGX_HAVE_NONALIGNED 1 #define NGX_WIN_NT 200000 #define NGX_LISTEN_BACKLOG 511 #ifndef NGX_HAVE_INHERITED_NONBLOCK #define NGX_HAVE_INHERITED_NONBLOCK 1 #endif #ifndef NGX_HAVE_CASELESS_FILESYSTEM #define NGX_HAVE_CASELESS_FILESYSTEM 1 #endif #ifndef NGX_HAVE_WIN32_TRANSMITPACKETS #define NGX_HAVE_WIN32_TRANSMITPACKETS 1 #define NGX_HAVE_WIN32_TRANSMITFILE 0 #endif #ifndef NGX_HAVE_WIN32_TRANSMITFILE #define NGX_HAVE_WIN32_TRANSMITFILE 1 #endif #if (NGX_HAVE_WIN32_TRANSMITPACKETS) || (NGX_HAVE_WIN32_TRANSMITFILE) #define NGX_HAVE_SENDFILE 1 #endif #ifndef NGX_HAVE_SO_SNDLOWAT /* setsockopt(SO_SNDLOWAT) returns error WSAENOPROTOOPT */ #define NGX_HAVE_SO_SNDLOWAT 0 #endif #ifndef NGX_HAVE_FIONREAD #define NGX_HAVE_FIONREAD 1 #endif #define NGX_HAVE_GETADDRINFO 1 #define ngx_random rand #define ngx_debug_init() #endif /* _NGX_WIN32_CONFIG_H_INCLUDED_ */