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Merge pull request #189 from benbjohnson/increase-max-nodes-per-page 

Increase max nodes per page.
pull/34/head
Ben Johnson 2014-06-10 10:06:01 -06:00
parent c9b983c853 fd7b0efeb5
commit 5e9ce18567
1 changed files with 4 additions and 5 deletions
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9
page.go
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@ -10,7 +10,6 @@ const pageHeaderSize = int(unsafe.Offsetof(((*page)(nil)).ptr))
const maxAllocSize = 0xFFFFFFF const maxAllocSize = 0xFFFFFFF
const minKeysPerPage = 2 const minKeysPerPage = 2
const maxNodesPerPage = 65535
const branchPageElementSize = int(unsafe.Sizeof(branchPageElement{})) const branchPageElementSize = int(unsafe.Sizeof(branchPageElement{}))
const leafPageElementSize = int(unsafe.Sizeof(leafPageElement{})) const leafPageElementSize = int(unsafe.Sizeof(leafPageElement{}))
@ -57,23 +56,23 @@ func (p *page) meta() *meta {
// leafPageElement retrieves the leaf node by index // leafPageElement retrieves the leaf node by index
func (p *page) leafPageElement(index uint16) *leafPageElement { func (p *page) leafPageElement(index uint16) *leafPageElement {
n := &((*[maxNodesPerPage]leafPageElement)(unsafe.Pointer(&p.ptr)))[index] n := &((*[0xFFFFFFF]leafPageElement)(unsafe.Pointer(&p.ptr)))[index]
return n return n
} }
// leafPageElements retrieves a list of leaf nodes. // leafPageElements retrieves a list of leaf nodes.
func (p *page) leafPageElements() []leafPageElement { func (p *page) leafPageElements() []leafPageElement {
return ((*[maxNodesPerPage]leafPageElement)(unsafe.Pointer(&p.ptr)))[:] return ((*[0xFFFFFFF]leafPageElement)(unsafe.Pointer(&p.ptr)))[:]
} }
// branchPageElement retrieves the branch node by index // branchPageElement retrieves the branch node by index
func (p *page) branchPageElement(index uint16) *branchPageElement { func (p *page) branchPageElement(index uint16) *branchPageElement {
return &((*[maxNodesPerPage]branchPageElement)(unsafe.Pointer(&p.ptr)))[index] return &((*[0xFFFFFFF]branchPageElement)(unsafe.Pointer(&p.ptr)))[index]
} }
// branchPageElements retrieves a list of branch nodes. // branchPageElements retrieves a list of branch nodes.
func (p *page) branchPageElements() []branchPageElement { func (p *page) branchPageElements() []branchPageElement {
return ((*[maxNodesPerPage]branchPageElement)(unsafe.Pointer(&p.ptr)))[:] return ((*[0xFFFFFFF]branchPageElement)(unsafe.Pointer(&p.ptr)))[:]
} }
// dump writes n bytes of the page to STDERR as hex output. // dump writes n bytes of the page to STDERR as hex output.