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dtrace_probe_t
2007 Sep 05
4
a piece of code in dtrace pseudo device
Dear all:
In dtrace.c, function dtrace_probe_create(), there''re a piece of code:
id = (dtrace_id_t)(uintptr_t)vmem_alloc(dtrace_arena, 1,
VM_BESTFIT | VM_SLEEP);
id is uint32_t, and I think id is used as an index to array dtrace_probes[]
but why not just use id = cur_value + 1, cur_value is a global variable to
record the lastest...