diff options
Diffstat (limited to 'manual')
| -rw-r--r-- | manual/resource.texi | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/manual/resource.texi b/manual/resource.texi index 0c394f2620..df77408e68 100644 --- a/manual/resource.texi +++ b/manual/resource.texi @@ -1367,12 +1367,12 @@ affinity mask can be retrieved from the system. @comment sched.h @comment GNU -@deftypefun int sched_getaffinity (pid_t @var{pid}, cpu_set_t *@var{cpuset}) +@deftypefun int sched_getaffinity (pid_t @var{pid}, size_t @var{cpusetsize}, cpu_set_t *@var{cpuset}) This functions stores the CPU affinity mask for the process or thread -with the ID @var{pid} in the memory pointed to by @var{cpuset}. If -successful, the function always initializes all bits in the -@code{cpu_set_t} object and returns zero. +with the ID @var{pid} in the @var{cpusetsize} bytes long bitmap +pointed to by @var{cpuset}. If successful, the function always +initializes all bits in the @code{cpu_set_t} object and returns zero. If @var{pid} does not correspond to a process or thread on the system the or the function fails for some other reason, it returns @code{-1} @@ -1395,12 +1395,12 @@ interface must be provided for that. @comment sched.h @comment GNU -@deftypefun int sched_setaffinity (pid_t @var{pid}, const cpu_set_t *@var{cpuset}) +@deftypefun int sched_setaffinity (pid_t @var{pid}, size_t @var{cpusetsize}, const cpu_set_t *@var{cpuset}) -This function installs the affinity mask pointed to by @var{cpuset} -for the process or thread with the ID @var{pid}. If successful the -function returns zero and the scheduler will in future take the -affinity information into account. +This function installs the @var{cpusetsize} bytes long affinity mask +pointed to by @var{cpuset} for the process or thread with the ID @var{pid}. +If successful the function returns zero and the scheduler will in future +take the affinity information into account. If the function fails it will return @code{-1} and @code{errno} is set to the error code: |