RTEMS | Draft: add programmatic interface for data produced by cpuuse (!232)

[Kinsey Moore (@opticron)]

Kinsey Moore started a new discussion on cpukit/libmisc/cpuuse/cpuusagereport.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/232#note_112679

 > +bool cpu_usage_visitor( Thread_Control *the_thread, void *arg )
 > +{
 > +
 > +  cpuuse_info cpuuse_data;
 > +   cpu_usage_context *ctx;
 > +
 > +  ctx = arg;
 > +  _Thread_Get_name( the_thread, cpuuse_data.name, sizeof( cpuuse_data.name ) );
 > +
 > +  cpuuse_data.time_used_after_last_reset = _Thread_Get_CPU_time_used_after_last_reset(the_thread );
 > +  _TOD_Get_uptime( &cpuuse_data.uptime );
 > +  _Timestamp_Subtract( &ctx->uptime_at_last_reset, &cpuuse_data.uptime, &ctx->total );
 > +  _Timestamp_Divide( &cpuuse_data.time_used_after_last_reset, &ctx->total, &cpuuse_data.ival, &cpuuse_data.fval );
 > +  cpuuse_data.seconds = _Timestamp_Get_seconds( &cpuuse_data.time_used_after_last_reset );
 > +  cpuuse_data.nanoseconds = _Timestamp_Get_nanoseconds( &cpuuse_data.time_used_after_last_reset ) /
 > +  TOD_NANOSECONDS_PER_MICROSECOND;

Make sure that lines don't go over 80 columns and that continuation lines are indented with 2 spaces.

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/232#note_112679
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