From 180a9797b03472e6881066d9752f2f0d81e1880f Mon Sep 17 00:00:00 2001 From: Willy Tarreau Date: Mon, 7 Feb 2022 17:23:50 +0100 Subject: [PATCH] tools/nolibc/unistd: add usleep() This call is trivial to implement based on select() to complete sleep() and msleep(), let's add it. Signed-off-by: Willy Tarreau Signed-off-by: Paul E. McKenney --- tools/include/nolibc/unistd.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/tools/include/nolibc/unistd.h b/tools/include/nolibc/unistd.h index 87b448f..1c25e20 100644 --- a/tools/include/nolibc/unistd.h +++ b/tools/include/nolibc/unistd.h @@ -38,6 +38,14 @@ unsigned int sleep(unsigned int seconds) } static __attribute__((unused)) +int usleep(unsigned int usecs) +{ + struct timeval my_timeval = { usecs / 1000000, usecs % 1000000 }; + + return sys_select(0, 0, 0, 0, &my_timeval); +} + +static __attribute__((unused)) int tcsetpgrp(int fd, pid_t pid) { return ioctl(fd, TIOCSPGRP, &pid); -- 2.7.4