Evbuffer_add_buffer_reference

Author: mucs

August undefined, 2024

http://www.cppblog.com/mysileng/archive/2013/02/05/197748.html Webevbuffer_add_buffer(struct evbuffer *outbuf, struct evbuffer *inbuf) {struct evbuffer_chain *pinned, *last; size_t in_total_len, out_total_len; int result = 0; EVBUFFER_LOCK2(inbuf, …

evbuffer(3) - NetBSD Manual Pages

Webint evbuffer_add_buffer (struct evbuffer *outbuf, struct evbuffer *inbuf); /* * Copy data from one evbuffer into another evbuffer. This is a non-destructive add. The data from one buffer is copied: into the other buffer. However, no unnecessary memory copies occur. Note that buffers already containing buffer references can't be added: to other ... WebSep 29, 2024 · As a result, evbuffers can be used to pass data around without actually incurring the overhead of copying the data. A new evbuffer can be allocated with … swatching sennelier watercolours

c - libevent based echo server got stuck - Stack Overflow

WebThe function event_add() schedules the execution of the ev event when the event specified in event_set() occurs or in at least the time spec‐ ified in the tv. If tv is NULL, no timeout … WebNov 18, 2012 · The evbuffer_add_buffer () function moves all data from src to the end of dst. It returns 0 on success, -1 on failure. The evbuffer_remove_buffer () function … WebApr 17, 2009 · evhttp_find_header (), evhttp_clear_headers () Adds a virtual host to the http server. A virtual host is a newly initialized evhttp object that has request callbacks set on it via evhttp_set_cb () or evhttp_set_gencb (). It most not … swatching colored pencils

【转】libevent学习笔记【使用篇】——7. evbuffer：缓冲IO的实 …

evbuffer(3) - NetBSD Manual Pages

WebJan 6, 2014 · 1 Preamble: lightweight http server written in C based on libevent v2 (evhttp), Linux, ARM, glibc2.3.4 I'm trying to serve big files (over 2GB) using evbuffer_add_file () on 32 bit system. The libevent was compiled with -D_FILE_OFFSET_BITS=64 flag. Here is the simplified code: WebC++ (Cpp) evbuffer_add - 30 examples found. These are the top rated real world C++ (Cpp) examples of evbuffer_add extracted from open source projects. You can rate … swatching stampWebApr 13, 2015 · Libevent bufferevent's evbuffer_add. I am using Libevent library 2.0 for socket communication. In order to add data to evbuffer, I am using evbuffer_add. The … swatching in the round knitting

"WebMay 18, 2024 · 向evbuffer对象中追加数据，使用evbuffer_add ()函数： 1 int evbuffer_add(struct evbuffer *buf, const void *data, size_t datlen); 该函数将data中的datlen长度的字节，追加到buf结尾。除此之外，还可以按照指定格式向evbuffer中追加数据，类似于C语言中的printf ()和vprintf ()函数： 1 2 int evbuffer_add_printf(struct … " - Evbuffer_add_buffer_reference

Evbuffer_add_buffer_reference

evbuffer_add_buffer(3) - OpenBSD manual pages

WebJan 8, 2013 · evbuffer_add_buffer() adds the contents of one buffer to the other without incurring any unnecessary memory copies. evbuffer_add() and evbuffer_add_buffer() do … WebEvent notification library. Contribute to libevent/libevent development by creating an account on GitHub.

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WebJan 8, 2013 · typedef void (* evbuffer_cb) (struct evbuffer *buffer, size_t old_len, size_t new_len, void *arg) Type definition for a callback that is invoked whenever data is added or removed from an evbuffer. An evbuffer may have one or more callbacks set at a time. The order in which they are executed is undefined. 这个函数向buf 的末尾添加 datalen 字节的数据data。函数在成功时返回0，失败时返回-1. 这些函数添加格式化的数据到buf末尾。格式参数fmt和其他参数的处理分别与C库函数printf和vprintf相同。函数返回添加的字节数。这个函数修改缓冲区的最后一块，或者添加一个新的块，使得缓冲区足以容纳datlen字节，而不需 … See more 这两个函数的功能很简明：evbuffer_new()分配和返回一个新的空evbuffer；而evbuffer_free()释放evbuffer和其内容。这两个函数 … See more 为提高效率，libevent具有将数据从一个evbuffer移动到另一个的优化函数。函数evbuffer_add_buffer()将src中的所有数据移动到dst末尾，成功时返回0，失败时返回-1。 … See more 默认情况下，在多个线程中同时访问evbuffer是不安全的。如果需要这样的访问，可以在evbuffer 上调用evbuffer_enable_locking() … See more 除了将数据移动到目标缓冲区前面不同外，这两个函数的行为分别与evbuffer_add()和evbuffer_add_buffer()相同。使用这些函数时 … See more

WebThe function event_add() schedules the execution of the ev event when the event specified in event_set() occurs or in at least the time spec‐ ified in the tv. If tv is NULL, no timeout … WebStandard Library API Reference Rust by Example The Cargo Guide Clippy Documentation ☰ In libevent_sys? Function libevent_sys:: evbuffer_add_cb source · [−] pub unsafe …

WebApr 17, 2009 · the evhttp object to which to add a virtual host : pattern : the glob pattern against which the hostname is matched. The match is case insensitive and follows … WebFeb 1, 2013 · int evbuffer_add (struct evbuffer *buf, const void *data, size_t datlen) 该函数用于添加一段用户数据到evbuffer中。很简单，就是先判断是否有足够的空闲内存，如果没有则调用evbuffer_expand 扩充之，然后直接memcpy，更新off指标。 int evbuffer_remove (struct evbuffer *buf, void *data, size_t datlen) 该函数用于将evbuffer中的数据复制给用 …

http://www.cppblog.com/mysileng/archive/2013/02/01/197671.html

WebJul 27, 2024 · int evbuffer_add_buffer_reference(struct evbuffer *outbuf, struct evbuffer *inbuf); evbuffer_add_buffer_reference()行为就相当于你把数据从outbuf拷贝到inbuf， … swatching in the roundWebMay 16, 2024 · Clone via HTTPS Clone with Git or checkout with SVN using the repository’s web address. swatching markersWebFeb 5, 2013 · evbuffer_remove_buffer()函数从src中移动datlen字节到dst末尾，尽量少进行复制。如果字节数小于datlen，所有字节被移动。函数返回移动的字节数。 … swatching watercolorsWebNov 21, 2014 · evbuffer_add_buffer () moves the data off the src evbuffer and appends it to dst. evbuffer_add_printf () appends a printf (3) style formatted string specified by fmt … skull made out of flowersWebDec 6, 2011 · buf the event buffer to be appended to data pointer to the beginning of the data buffer datlen the number of bytes to be copied from the data buffer. This is source … skull maceration cleaningWebNov 27, 2024 · 1 Answer Sorted by: 0 Figured out the cause of the problem: in the function echo_event_cb, there is a call evutil_closesocket (fd); This is not only unnecessary, it's harmful! After the call to close socket is removed, it works perfect. It's unnecessary because the bufferedevent was created with BEV_OPT_CLOSE_ON_FREE. Share Follow skull made of flowers fleece shirtWebDec 29, 2013 · Thanks for the solution, but I can't find any blocking code in bufferevent_free on flushing pending data. bufferevent_free just clear the callback, cancel ctrl data, and decref_and_unlock bufferevent. I'm calling the evbuffer_write function myself currently to try to flush data. But write() in evbuffer_write may still have remain data. swatching template