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hurd: fix usleep(ULONG_MAX) 

* sysdeps/mach/usleep.c (usleep): Clamp timeout when rouding up.
This commit is contained in:
Samuel Thibault 2020-06-28 22:39:03 +00:00
parent 3c9f67e7a5
commit 1f3413338e
1 changed files with 5 additions and 1 deletions
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6
sysdeps/mach/usleep.c
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@ -25,11 +25,15 @@ int
usleep (useconds_t useconds)
{
mach_port_t recv;
useconds_t useconds_up = useconds + 999;
if (useconds_up < useconds)
useconds_up = UINT32_MAX;
recv = __mach_reply_port ();
(void) __mach_msg (NULL, MACH_RCV_MSG|MACH_RCV_TIMEOUT|MACH_RCV_INTERRUPT,
0, 0, recv, (useconds + 999) / 1000, MACH_PORT_NULL);
0, 0, recv, useconds_up / 1000, MACH_PORT_NULL);
__mach_port_destroy (mach_task_self (), recv);
return 0;