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Diffstat (limited to 'unix/os/doc/zintpr.hlp')
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1 files changed, 34 insertions, 0 deletions
diff --git a/unix/os/doc/zintpr.hlp b/unix/os/doc/zintpr.hlp new file mode 100644 index 00000000..6899c8e1 --- /dev/null +++ b/unix/os/doc/zintpr.hlp @@ -0,0 +1,34 @@ +.help zintpr May84 "System Interface" +.ih +NAME +zintpr -- interrupt a process +.ih +SYNOPSIS +.nf +zintpr (pid, exception, status) + +int pid # process id of process to be interrupted +int exception # exception to be raised +int status +.fi +.ih +DESCRIPTION +The indicated virtual exception is raised in the process associated with +the process-id \fIpid\fR. Currently only the interrupt exception X_INT +may be sent to a process. +.ih +RETURN VALUE +ERR is returned for a bad process-id. OK is returned if the operation +is successful. +.ih +NOTES +The exception X_INT is also raised by the host terminal driver when +the interrupt control sequence is typed by the user at the terminal. +If the identical exception cannot be raised by a user process it may +be possible to use a different exception and have the kernel map both +to X_INT. In principle it should be possible for a process to interrupt +itself, though this capability may be machine dependent. +.ih +SEE ALSO +zxwhen +.endhelp |