Linux command
nanosleep 命令
文本
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常用示例
Sleep for 1 second (C code)
struct timespec ts = {1, 0}; nanosleep(&ts, NULL);
Sleep for 500 milliseconds
struct timespec ts = {0, 500000000L}; nanosleep(&ts, NULL);
Sleep with remaining time
nanosleep(&req, &rem);
说明
nanosleep suspends execution of the calling thread for the specified duration. Unlike sleep(), it provides nanosecond precision and handles interruption gracefully. The function returns immediately if interrupted by a signal, storing remaining time in rem.
参数
- req
- Requested sleep time (seconds and nanoseconds).
- rem
- Remaining time if interrupted (can be NULL).
FAQ
What is the nanosleep command used for?
nanosleep suspends execution of the calling thread for the specified duration. Unlike sleep(), it provides nanosecond precision and handles interruption gracefully. The function returns immediately if interrupted by a signal, storing remaining time in rem.
How do I run a basic nanosleep example?
Run `struct timespec ts = {1, 0}; nanosleep(&ts, NULL);` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does req do in nanosleep?
Requested sleep time (seconds and nanoseconds).