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Rev	Author	Line No.	Line
2	-	1	`.TH SLEEP 2`
		2	`.SH NAME`
		3	`sleep, alarm \- delay, ask for delayed note`
		4	`.SH SYNOPSIS`
		5	`.B #include <u.h>`
		6	`.br`
		7	`.B #include <libc.h>`
		8	`.PP`
		9	`.B`
		10	`int sleep(long millisecs)`
		11	`.PP`
		12	`.B`
		13	`long alarm(unsigned long millisecs)`
		14	`.SH DESCRIPTION`
		15	`.I Sleep`
		16	`suspends the current process for the number`
		17	`of milliseconds specified by the argument.`
		18	`The actual suspension time may be a little more or less than`
		19	`the requested time. If`
		20	`.I millisecs`
		21	`is 0, the process`
		22	`gives up the CPU if another process is waiting to run, returning`
		23	`immediately if not.`
		24	`Sleep returns \-1 if interrupted, 0 otherwise.`
		25	`.PP`
		26	`.I Alarm`
		27	`causes an`
		28	`.B alarm`
		29	`note (see`
		30	`.IR notify (2))`
		31	`to be sent to the invoking process after the number of milliseconds`
		32	`given by the argument.`
		33	`Successive calls to`
		34	`.I alarm`
		35	`reset the alarm clock.`
		36	`A zero argument clears the alarm.`
		37	`The return value is the amount of time previously remaining in`
		38	`the alarm clock.`
		39	`.SH SOURCE`
		40	`.B /sys/src/libc/9syscall`
		41	`.SH SEE ALSO`
		42	`.IR intro (2)`
		43	`.SH DIAGNOSTICS`
		44	`These functions set`
		45	`.IR errstr .`

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