Move all C code into repo.

1 files changed, 26 insertions, 0 deletions

diff --git a/page.go b/page.go
index 3f1e6b3..fe639fa 100644
--- a/page.go
+++ b/page.go
@@ -17,6 +17,26 @@ const (
 	KeepPage     = 0x8000 /**< leave this page alone during spill */
 )
 
+// maxCommitPages is the maximum number of pages to commit in one writev() call.
+const maxCommitPages 64
+
+/* max bytes to write in one call */
+const maxWriteByteCount 0x80000000U    // TODO: #define MAX_WRITE 0x80000000U >> (sizeof(ssize_t) == 4))
+
+// TODO:
+// #if defined(IOV_MAX) && IOV_MAX < MDB_COMMIT_PAGES
+// #undef MDB_COMMIT_PAGES
+// #define MDB_COMMIT_PAGES	IOV_MAX
+// #endif
+
+// TODO: #define MDB_PS_MODIFY	1
+// TODO: #define MDB_PS_ROOTONLY	2
+// TODO: #define MDB_PS_FIRST	4
+// TODO: #define MDB_PS_LAST		8
+
+// TODO: #define MDB_SPLIT_REPLACE	MDB_APPENDDUP	/**< newkey is not new */
+
+
 type page struct {
 	header struct {
 		id                int
@@ -28,6 +48,11 @@ type page struct {
 	metadata []byte
 }
 
+type pageState struct {
+	head int  /**< Reclaimed freeDB pages, or NULL before use */
+	last int  /**< ID of last used record, or 0 if !mf_pghead */
+}
+
 // nodeCount returns the number of nodes on the page.
 func (p *page) nodeCount() int {
 	return 0 // (p.header.lower - unsafe.Sizeof(p.header) >> 1
@@ -42,3 +67,4 @@ func (p *page) remainingSize() int {
 func (p *page) remainingSize() int {
 	return p.header.upper - p.header.lower
 }
+