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The processor_info() function returns the status of the processor specified by processorid in the processor_info_t structure pointed to
by infop.
The structure processor_info_t contains the following members:
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int pi_state;
char pi_processor_type[PI_TYPELEN];
char pi_fputypes[PI_FPUTYPE];
int pi_clock;
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The pi_state member is the current state of the processor, either P_ONLINE, P_OFFLINE, or P_POWEROFF.
The pi_processor_type member is a null-terminated ASCII string specifying the type of the processor.
The pi_fputypes member is a null-terminated ASCII string containing the comma-separated types of floating-point units (FPUs) attached to the processor. This string will be empty
if no FPU is attached.
The pi_clock member is the processor clock frequency rounded to the nearest megahertz. It may be 0 if not known.
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