APUE学习笔记 - Chapter 2 . Unix Standardization and Implementations
时间:2010-08-17 来源:Xing Liang
1.Unix 的标准
1.1 ISO C 1.2 POSIX( Poratble Operationg System Interface ) POSIX包含了ISO C中的标准程序 1.3 Single Unix Specification 2.Unix的实现 2.1 Unix SystemV Release 4 , AT&T's Unix System Laboratories 2.2 4.4BSD , Berkeley Software Distribution 2.3 FreeBSD, Based on 4.4BSD-Lite 2.4 Linux 2.5 Mac OS X , a combination of Mach Kernel and the FreeBSD Operationg system 2.6 Solaris, Based on System V Release 4 3.Limits 3.1 Compile-time limits,定义于头文件中,程序可以通过头文件进行判定。 3.2 Runtime limits,需要程序动态调用函数去获得相关的限制值 3.2.1 与文件和目录无关 sysconf 3.2.2 与文件和目录有关 pathconf/fpathconf
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