kqueue和kevent可以用于此目的。OSX 10.6和FreeBSD 8.1增加了对EVFILT_USER的支持，我们可以使用它从...
CLOCK_BOOTTIME和CLOCK_MONOTONIC类似,也是单调上述,在系统初始化的时候设定的基准数值是0,不过CLOCK_BOOTTIME计算系统suspend的时间,也就是说,不论是running还是suspend(这些都算是启动时间),CLOCK_BOOTTIME都会累积计时,直到系统reset或者shutdown。 CLOCK_REALTIME_ALARM和CLOCK_BOOTTIME_ALARM主要用于Alarmtimer,这种tim...
You need the TAI timestamp or leap second aware date math to account for leap seconds. Contributor Grinnz commented Sep 6, 2023 • edited $ cat x.pl use Time::Local (); $timet = time(); ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = gmtime($timet); $rev_tl...
CLOCK_BOOTTIME和CLOCK_MONOTONIC类似,也是单调上述,在系统初始化的时候设定的基准数值是0,不过CLOCK_BOOTTIME计算系统suspend的时间,也就是说,不论是running还是suspend(这些都算是启动时间),CLOCK_BOOTTIME都会累积计时,直到系统reset或者shutdown。 CLOCK_REALTIME_ALARM和CLOCK_BOOTTIME_ALARM主要用于Alarmtimer,这种tim...
(sqlfs_t *, const char *path, off_t size); int sqlfs_proc_utime(sqlfs_t *, const char *path, struct utimbuf *buf); int sqlfs_proc_open(sqlfs_t *, const char *path, struct fuse_file_info *fi); int sqlfs_proc_read(sqlfs_t *, const char *path, char *buf, size_t ...
2. VP makes semaphore-based programs easier to understand and verify. 3... KC Tai,RH Carver - 《Operating Systems Review》 被引量: 0发表: 1996年 Semaphore queue priority assignment for real-time multiprocessor synchronization Prior work on real-time scheduling with global shared resources in ...
#define CLOCK_TAI 11 #define MAX_CLOCKS 16 POSIX标准定义了4种类型的clock,CLOCK_REALTIME、CLOCK_MONOTONIC、CLOCK_PROCESS_CPUTIME_ID和CLOCK_THREAD_CPUTIME_ID,其他是linux specific。如果一个clock的timeline是基于CPU运行时间的,那么我们称之CPU-time clock。CPU-time clock主要是用来为某个进程或者线程的执...
#define CLOCK_TAI 11 #define MAX_CLOCKS 16 POSIX标准定义了4种类型的clock,CLOCK_REALTIME、CLOCK_MONOTONIC、CLOCK_PROCESS_CPUTIME_ID和CLOCK_THREAD_CPUTIME_ID,其他是linux specific。如果一个clock的timeline是基于CPU运行时间的,那么我们称之CPU-time clock。CPU-time clock主要是用来为某个进程或者线程的执...