msgpack

How do I unpack and extract data properly using msgpack-c?

由 ⅰ亾dé卋堺 提交于 2019-11-29 03:36:41
问题 I'm currently trying to use msgpack in a project written in C. I'm using msgpack for the purpose of serializing the contents of a struct, which is then to be sent over the network, and deserialized back into a corresponding struct on the other side. Condensed version of what I'm trying to do: #include <stdio.h> #include <msgpack.h> #include <stdbool.h> typedef someStruct{ uint32_t a; uint32_t b; float c; } someStruct; int main (void){ someStruct data; /* ... Fill 'data' with some data for

Performant Entity Serialization: BSON vs MessagePack (vs JSON)

由 ﹥＞﹥吖頭↗ 提交于 2019-11-27 16:37:28
Recently I've found MessagePack , an alternative binary serialization format to Google's Protocol Buffers and JSON which also outperforms both. Also there's the BSON serialization format that is used by MongoDB for storing data. Can somebody elaborate the differences and the dis-/advantages of BSON vs MessagePack ? Just to complete the list of performant binary serialization formats: There are also Gobs which are going to be the successor of Google's Protocol Buffers . However in contrast to all the other mentioned formats those are not language-agnostic and rely on Go's built-in reflection

Using MessagePack with Android

由 允我心安 提交于 2019-11-27 13:20:22
Has someone tried to use MessagePack with an Android app? Is it possible? I have tried to use the Jar from msgpack-java and received the following Exception: Caused by: java.lang.ExceptionInInitializerError at org.msgpack.Packer.pack(Packer.java:532) at org.msgpack.MessagePack.pack(MessagePack.java:31) ... 15 more Caused by: java.lang.ExceptionInInitializerError at org.msgpack.template.TemplateRegistry.<clinit>(TemplateRegistry.java:38) ... 17 more Caused by: java.lang.VerifyError: org.msgpack.template.BeansFieldEntryReader at org.msgpack.template.builder.BeansTemplateBuilder.<init

anaconda将.ipynb文件做成.exe文件.

由 允我心安 提交于 2019-11-27 11:03:50
## 1、打开anaconda prompt ## 2、安装pyinstaller（可以在默认目录，也可以在其他目录） 输入命令： pip install pyinstaller 注：如果出现如： distributed 1.21.8 requires msgpack, which is not installed. 需要安装msgpack： 解决命令如下： pip install msgpack 如果出现： You are using pip version 10.0.1, however version 19.1.1 is available. You should consider upgrading via the 'python -m pip install --upgrade pip' command. 解决命令如下： python -m pip install --upgrade pip ## 3、在jupyter notebook中打开***.ipynb文件 下载为.py文件，将文件保存在目录下（默认目录或自己上面选择了的目录） ## 4、在promt窗口中，输入命令:** pyinstaller -F ***.py ## 5.在目录下的dict文件夹里面，有.py打包好的exe文件，（其余生成的文件不用管） 来源： https://www.cnblogs.com

How do I read and write with msgpack? [closed]

由 点点圈 提交于 2019-11-27 02:15:29
How do I serialize / deserialize a dictionary data with msgpack ? Martin Thoma The Python docs seem not to be so good, so here is my try. Installation pip install msgpack Read and Write msgpack #!/usr/bin/env python # -*- coding: utf-8 -*- import msgpack # Define data data = {'a list': [1, 42, 3.141, 1337, 'help'], 'a string': 'bla', 'another dict': {'foo': 'bar', 'key': 'value', 'the answer': 42}} # Write msgpack file with open('data.msgpack', 'w') as outfile: msgpack.pack(data, outfile) # Read msgpack file with open('data.msgpack') as data_file: # data_loaded = json.load(data_file) data

Performant Entity Serialization: BSON vs MessagePack (vs JSON)

由 偶尔善良 提交于 2019-11-26 18:43:00
问题 Recently I've found MessagePack , an alternative binary serialization format to Google's Protocol Buffers and JSON which also outperforms both. Also there's the BSON serialization format that is used by MongoDB for storing data. Can somebody elaborate the differences and the dis-/advantages of BSON vs MessagePack ? Just to complete the list of performant binary serialization formats: There are also Gobs which are going to be the successor of Google's Protocol Buffers . However in contrast to

Using MessagePack with Android

由 给你一囗甜甜゛ 提交于 2019-11-26 16:18:23
问题 Has someone tried to use MessagePack with an Android app? Is it possible? I have tried to use the Jar from msgpack-java and received the following Exception: Caused by: java.lang.ExceptionInInitializerError at org.msgpack.Packer.pack(Packer.java:532) at org.msgpack.MessagePack.pack(MessagePack.java:31) ... 15 more Caused by: java.lang.ExceptionInInitializerError at org.msgpack.template.TemplateRegistry.<clinit>(TemplateRegistry.java:38) ... 17 more Caused by: java.lang.VerifyError: org

How do I read and write with msgpack? [closed]

由 本小妞迷上赌 提交于 2019-11-26 09:59:27
问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago . How do I serialize / deserialize a dictionary data with msgpack? 回答1: The Python docs seem not to be so good, so here is my try. Installation pip install msgpack Read and Write msgpack #!/usr/bin/env python # -*- coding: utf-8 -*- import msgpack # Define data data = {'a list': [1,

Node.js 环境搭建及简单应用

由 时光毁灭记忆、已成空白 提交于 2019-11-25 22:52:39
Node.js 是一个基于 Chrome V8 引擎的 JavaScript 运行环境。Node.js 使用了一个事件驱动、非阻塞式 I/O 的模型。如果你想创建自己的服务，那么Node.js是一个非常好的选择。今天就来介绍一下 Node.js 环境搭建及简单应用。 1.安装 Node.js 首先下载安装 Node.js，官方网站下载即可。 官方地址：https://nodejs.org/en/ 安装好后可以通过命令提示符查看安装版本是否正确，如下如所示： 这时你有可能会问到 npm 是什么？ 简单来说 npm 就是 Node.js 的包管理工具（package manager），Node.js 已经内置 npm，不用单独安装。具体可以参考廖雪峰老师的介绍，这里就不再展开说明。 廖雪峰老师介绍地址：https://www.liaoxuefeng.com/wiki/1022910821149312/1023025597810528 2.安装 WebStorm WebStorm 是jetbrains公司旗下一款JavaScript 开发工具。目前已经被广大中国JS开发者誉为“Web前端开发神器”、“最强大的HTML5编辑器”、“最智能的JavaScript IDE”等。这里我们将会用它来编写服务端代码，同样去官方网站下载即可，不过软件需要激活，具体激活方式可以自行百度，强力建议支持正版
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