63 lines
2 KiB
C
63 lines
2 KiB
C
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#ifndef _ROSE_COMPRESSION_PAGELAYOUT_H__
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#define _ROSE_COMPRESSION_PAGELAYOUT_H__
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#include "compression.h" // for plugin_id
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namespace rose {
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// XXX need to be able to de-init this stuff.
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static int cmp_num = 1;
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static int init_num = 1;
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template <class FORMAT, class COMPRESSOR>
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class SingleColumnTypePageLayout {
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public:
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typedef FORMAT FMT;
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static inline void initPageLayout() {
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stasis_page_impl_register(FMT::impl());
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// XXX these should register template instantiations of worker
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// threads that are statically compiled to deal with the tree
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// we're instantiating.
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lsmTreeRegisterComparator(cmp_num, FMT::TUP::cmp);
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lsmTreeRegisterPageInitializer
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(init_num, (lsm_page_initializer_t)initPage);
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my_cmp_num = cmp_num;
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cmp_num++;
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my_init_num = init_num;
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init_num++;
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}
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static inline FORMAT * initPage(Page *p, const typename FORMAT::TUP * t) {
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const column_number_t column_count = t->column_count();
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plugin_id_t pluginid = plugin_id<FORMAT, COMPRESSOR, typename COMPRESSOR::TYP>();
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plugin_id_t * plugins = new plugin_id_t[column_count];
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for(column_number_t c = 0; c < column_count; c++) {
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plugins[c] = pluginid;
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}
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FORMAT * f = new FORMAT(-1,p,column_count,plugins);
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for(column_number_t c = 0; c < column_count; c++) {
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COMPRESSOR* com = (COMPRESSOR*) f->compressor(c);
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typename COMPRESSOR::TYP val = *(typename COMPRESSOR::TYP*)(t->get(c));
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com->offset(val);
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}
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return f;
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}
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static inline int cmp_id() {
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return my_cmp_num;
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}
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static inline int init_id() {
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return my_init_num;
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}
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private:
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static int my_cmp_num;
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static int my_init_num;
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};
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template <class FORMAT, class COMPRESSOR>
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int SingleColumnTypePageLayout<FORMAT,COMPRESSOR>::my_cmp_num = -1;
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template <class FORMAT, class COMPRESSOR>
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int SingleColumnTypePageLayout<FORMAT,COMPRESSOR>::my_init_num = -1;
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template <class PAGELAYOUT>
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recordid TlsmTableAlloc();
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}
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#endif // _ROSE_COMPRESSION_PAGELAYOUT_H__
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