?? openmax.c
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#include "apue.h"#include <limits.h>#include <sys/resource.h>#define OPEN_MAX_GUESS 256longopen_max(void){ long openmax; struct rlimit rl; if ((openmax = sysconf(_SC_OPEN_MAX)) < 0 || openmax == LONG_MAX) { if (getrlimit(RLIMIT_NOFILE, &rl) < 0) err_sys("can't get file limit"); if (rl.rlim_max == RLIM_INFINITY) openmax = OPEN_MAX_GUESS; else openmax = rl.rlim_max; } return(openmax);}?? 快捷鍵說明
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