소형 내장형 시스템을 위한 단일 스택 멀티 스레드 구현

• Published in: 한국컴퓨터정보학회논문지 Vol. 21; no. 4; pp. 1 - 8
• Main Author: 김용석(Yong-Seok Kim)
• Format: Journal Article
• Language: Korean
• Published: 한국컴퓨터정보학회 01.04.2016
• Subjects: 컴퓨터학; C preprocessor; Stack sharing; Multi-threading; IoT
• ISSN: 1598-849X; 2383-9945

In small embedded systems including IoT devices, memory size is very small and it is important to reduce memory amount for execution of application programs. For multi-threaded applications, stack may consume a large amount of memory because each thread has its own stack of sufficiently large size for worst case. This paper presents an implementation of single stack multi-threading, called SSThread (Single Stack Thread), by sharing a stack for all threads to reduce stack memory size. By using SSThread, multi-threaded applications can be programmed based on normal C language environment and there is no requirement of transporting multi-threading operating systems. It consists of several library functions and various C macro definitions. Even though some functional restrictions in comparison to operating systems supporting complete multi-thread functionalities, it is very useful for small embedded systems with tiny memory size and it is simple to setup programming environment for multi-thread applications. KCI Citation Count: 0