From afea5f9539cbf1eeaa85ec77d79eb2f59724f470 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 09:34:15 +0200 Subject: Adding upstream version 1.52.0. Signed-off-by: Daniel Baumann --- src/libevent_util.h | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 src/libevent_util.h (limited to 'src/libevent_util.h') diff --git a/src/libevent_util.h b/src/libevent_util.h new file mode 100644 index 0000000..1d1ee91 --- /dev/null +++ b/src/libevent_util.h @@ -0,0 +1,75 @@ +/* + * nghttp2 - HTTP/2 C Library + * + * Copyright (c) 2014 Tatsuhiro Tsujikawa + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +#ifndef LIBEVENT_UTIL_H +#define LIBEVENT_UTIL_H + +#include "nghttp2_config.h" + +#include +#include + +namespace nghttp2 { + +namespace util { + +class EvbufferBuffer { +public: + EvbufferBuffer(); + // If |limit| is not -1, at most min(limit, bufmax) size bytes are + // added to evbuffer_. + EvbufferBuffer(evbuffer *evbuffer, uint8_t *buf, size_t bufmax, + ssize_t limit = -1); + ~EvbufferBuffer(); + void reset(evbuffer *evbuffer, uint8_t *buf, size_t bufmax, + ssize_t limit = -1); + int flush(); + int add(const uint8_t *data, size_t datalen); + size_t get_buflen() const; + int write_buffer(); + // Returns the number of written bytes to evbuffer_ so far. reset() + // resets this value to 0. + size_t get_writelen() const; + +private: + evbuffer *evbuffer_; + evbuffer *bucket_; + uint8_t *buf_; + size_t bufmax_; + size_t buflen_; + ssize_t limit_; + size_t writelen_; +}; + +// These functions are provided to reduce epoll_ctl syscall. Avoid +// calling bufferevent_enable/disable() unless it is required by +// sniffing current enabled events. +void bev_enable_unless(bufferevent *bev, int events); +void bev_disable_unless(bufferevent *bev, int events); + +} // namespace util + +} // namespace nghttp2 + +#endif // LIBEVENT_UTIL_H -- cgit v1.2.3