この記事は「fukuoka.ex Elixir／Phoenix Advent Calendar 2019」16日目です。 昨日の「fukuoka.ex Elixir／Phoenix Advent Calendar 2019」は @pojiro さんの「作って学ぶPhoenix、IoTサーバー」でした。 前回は「#NervesJP Advent Calendar 2019」12日目と13日目にそれぞれ「Nerves の可能性は IoT だけじゃない(前編)〜ElixirとPelemayで世界の消費電力を抑える」と「Nerves の可能性は IoT だけじゃない(後編)〜Nervesで世界の消費電力を抑える」をお届けしました。 さて2019年11月の頭にこんなツイートをして反響を呼びました。 今日知った衝撃の事実。Elixir は，Erlang を GCC でコンパイルするのか，Clang で
Erlang: How to integrate C with Erlang program example or Erlang NIFs (Native Implemented Functions) usage Erlang programmers know that Erlang/OTP platform can reduce the program code length and speed-up development process about 75% compared to C. However Erlang is interpreted language, so overall Erlan program will be slower than equal one written in C. Thanks to Erlang developers Erlang HiPe is
View Source erl_nif API functions for an Erlang NIF library. Description A NIF library contains native implementation of some functions of an Erlang module. The native implemented functions (NIFs) are called like any other functions without any difference to the caller. A NIF library is built as a dynamically linked library file and loaded in runtime by calling erlang:load_nif/2. Warning Use this
kernel void logisticsmap( global int *mu, global int *p, global int *input, global int *output) { int x, m, pp; size_t i = get_global_id(0); x = input[i]; m = mu[i]; pp = p[i]; x = m * x * (x + 1) % pp; x = m * x * (x + 1) % pp; x = m * x * (x + 1) % pp; x = m * x * (x + 1) % pp; x = m * x * (x + 1) % pp; x = m * x * (x + 1) % pp; x = m * x * (x + 1) % pp; x = m * x * (x + 1) % pp; x = m * x * (x
View Source NIFs This section outlines an example of how to solve the example problem in Problem Example by using Native Implemented Functions (NIFs). NIFs are a simpler and more efficient way of calling C-code than using port drivers. NIFs are most suitable for synchronous functions, such as foo and bar in the example, that do some relatively short calculations without side effects and return the
Flatten a list You are encouraged to solve this task according to the task description, using any language you may know. Task Write a function to flatten the nesting in an arbitrary list of values. Your program should work on the equivalent of this list: [[1], 2, [[3, 4], 5], [[[]]], [[[6]]], 7, 8, []] Where the correct result would be the list: [1, 2, 3, 4, 5, 6, 7, 8] Related task Tree traversal
Go vs D vs Erlang vs C in real life: MQTT broker implementation shootout. At work we recently started using the MQTT protocol, which uses a publish / subscribe model. It’s simple in the good way and well thought out. We went with an open source implementation named Mosquitto. A few weeks ago on the way back from lunch break my colleague Jeff told me he was writing an MQTT broker in Go, his new fav
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