内容简介
#include <unistd.h> int getdtablesize(void);
描述
getdtablesize() 返回文件的最大数量进程可以打开的,比一个文件描述符的最大可能值多一个。返回值
当前限制在每个进程打开的文件数。注意
getdtablesize() is implemented as a libc library function. The glibc version callsgetrlimit(2) and returns the current RLIMIT_NOFILE limit, or OPEN_MAX when that fails. The libc4 and libc5 versions return OPEN_MAX (set to 256 since Linux 0.98.4).遵循于
SVr4, 4.4BSD (the getdtablesize() function first appeared in 4.2BSD).另请参阅