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firestar5683
ab81464bd1
Add navigation and map matching providers with the vendored map service sources. Co-authored-by: Daniel Koepping <elkoled@gmail.com> Co-authored-by: Danny <dannyirwin31@yahoo.com> Co-authored-by: Prabhaav Pillai <prabhaav@msu.edu> Co-authored-by: dirwin31 <83434411+dirwin31@users.noreply.github.com>
29 lines
753 B
Go
29 lines
753 B
Go
package gomsgq
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import (
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"unsafe"
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"github.com/edsrzf/mmap-go"
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)
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type Header struct {
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NumReaders *uint64
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WritePointer *uint64
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WriteUid *uint64
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ReadPointers []uint64
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ReadValids []uint64
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ReadUids []uint64
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}
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func (h *Header) Init(m mmap.MMap) {
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h.NumReaders = (*uint64)(unsafe.Pointer(&m[0]))
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h.WritePointer = (*uint64)(unsafe.Pointer(&m[8]))
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h.WriteUid = (*uint64)(unsafe.Pointer(&m[16]))
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readPointers := unsafe.Slice((*uint64)(unsafe.Pointer(&m[24])), NUM_READERS)
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h.ReadPointers = readPointers
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readValids := unsafe.Slice((*uint64)(unsafe.Pointer(&m[24+NUM_READERS*8])), NUM_READERS)
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h.ReadValids = readValids
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readUids := unsafe.Slice((*uint64)(unsafe.Pointer(&m[24+2*NUM_READERS*8])), NUM_READERS)
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h.ReadUids = readUids
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}
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