stopcpu.2

来自「<B>Digital的Unix操作系统VAX 4.2源码</B>」· 2 代码 · 共 42 行

.TH stopcpu 2 
.SH Name
stopcpu \- stop a CPU
.SH Syntax
.B stopcpu(\fIcpunumber\fP)
.br
int \fIcpunumber\fP;
.SH Description
The
.PN stopcpu 
system call stops the CPU specified by 
.I cpunumber.
.NXR "SMP" "stopcpu"
Any nid-boot CPU can be stopped using this system call. Only a superuser
can execute the 
.PN stopcpu
system call. 
.SH Return Values
The 
.PN stopcpu
call returns 0 if the CPU was stopped successfully, or else it returns
-1 and sets errno appropriately.
.SH Diagnostics
.TP 15
[EPERM]
The caller is not a superuser
.TP 15
[EACCES]
Trying to stop boot CPU
.TP 15
[EBUSY]
The CPU is already stopped or no such CPU present
.TP 15
[EINVAL]
Invalid value for 
.I cpunumber.
A value 
.I cpunumber
is between 0 and 31.
.SH See Also
startcpu (2), startcpu (8), stopcpu (8)