/** max number of pages to commit in one writev() call */
#define MDB_COMMIT_PAGES 64
-static MDB_page *mdb_alloc_page(MDB_cursor *mc, int num);
-static int mdb_touch(MDB_cursor *mc);
+static MDB_page *mdb_page_alloc(MDB_cursor *mc, int num);
+static int mdb_page_touch(MDB_cursor *mc);
-static int mdb_search_page_root(MDB_cursor *mc,
+static int mdb_page_search_root(MDB_cursor *mc,
MDB_val *key, int modify);
-static int mdb_search_page(MDB_cursor *mc,
+static int mdb_page_search(MDB_cursor *mc,
MDB_val *key, int modify);
static int mdb_env_read_header(MDB_env *env, MDB_meta *meta);
static int mdb_env_read_meta(MDB_env *env, int *which);
static int mdb_env_write_meta(MDB_txn *txn);
-static int mdb_get_page(MDB_txn *txn, pgno_t pgno, MDB_page **mp);
+static int mdb_page_get(MDB_txn *txn, pgno_t pgno, MDB_page **mp);
-static MDB_node *mdb_search_node(MDB_cursor *mc, MDB_val *key, int *exactp);
-static int mdb_add_node(MDB_cursor *mc, indx_t indx,
+static MDB_node *mdb_node_search(MDB_cursor *mc, MDB_val *key, int *exactp);
+static int mdb_node_add(MDB_cursor *mc, indx_t indx,
MDB_val *key, MDB_val *data, pgno_t pgno, uint8_t flags);
-static void mdb_del_node(MDB_page *mp, indx_t indx, int ksize);
+static void mdb_node_del(MDB_page *mp, indx_t indx, int ksize);
static int mdb_del0(MDB_cursor *mc, MDB_node *leaf);
-static int mdb_read_data(MDB_txn *txn, MDB_node *leaf, MDB_val *data);
+static int mdb_node_read(MDB_txn *txn, MDB_node *leaf, MDB_val *data);
static int mdb_rebalance(MDB_cursor *mc);
static int mdb_update_key(MDB_page *mp, indx_t indx, MDB_val *key);
-static int mdb_move_node(MDB_cursor *csrc, MDB_cursor *cdst);
-static int mdb_merge(MDB_cursor *csrc, MDB_cursor *cdst);
-static int mdb_split(MDB_cursor *mc, MDB_val *newkey, MDB_val *newdata,
+static int mdb_node_move(MDB_cursor *csrc, MDB_cursor *cdst);
+static int mdb_page_merge(MDB_cursor *csrc, MDB_cursor *cdst);
+static int mdb_page_split(MDB_cursor *mc, MDB_val *newkey, MDB_val *newdata,
pgno_t newpgno);
-static MDB_page *mdb_new_page(MDB_cursor *mc, uint32_t flags, int num);
+static MDB_page *mdb_page_new(MDB_cursor *mc, uint32_t flags, int num);
-static void cursor_pop_page(MDB_cursor *mc);
-static int cursor_push_page(MDB_cursor *mc, MDB_page *mp);
+static void mdb_cursor_pop(MDB_cursor *mc);
+static int mdb_cursor_push(MDB_cursor *mc, MDB_page *mp);
-static int mdb_sibling(MDB_cursor *mc, int move_right);
+static int mdb_cursor_sibling(MDB_cursor *mc, int move_right);
static int mdb_cursor_next(MDB_cursor *mc, MDB_val *key, MDB_val *data, MDB_cursor_op op);
static int mdb_cursor_prev(MDB_cursor *mc, MDB_val *key, MDB_val *data, MDB_cursor_op op);
static int mdb_cursor_set(MDB_cursor *mc, MDB_val *key, MDB_val *data, MDB_cursor_op op,
static void mdb_default_cmp(MDB_txn *txn, MDB_dbi dbi);
/** @cond */
-static MDB_cmp_func memncmp, memnrcmp, intcmp, cintcmp, longcmp;
+static MDB_cmp_func mdb_cmp_memn, mdb_cmp_memnr, mdb_cmp_int, mdb_cmp_cint, mdb_cmp_long;
/** @endcond */
#ifdef _WIN32
* will always be satisfied by a single contiguous chunk of memory.
*/
static MDB_page *
-mdb_alloc_page(MDB_cursor *mc, int num)
+mdb_page_alloc(MDB_cursor *mc, int num)
{
MDB_txn *txn = mc->mc_txn;
MDB_page *np;
txnid_t *kptr, oldest;
mdb_cursor_init(&m2, txn, FREE_DBI, NULL);
- mdb_search_page(&m2, NULL, 0);
+ mdb_page_search(&m2, NULL, 0);
leaf = NODEPTR(m2.mc_pg[m2.mc_top], 0);
kptr = (txnid_t *)NODEKEY(leaf);
MDB_val data;
pgno_t *idl;
- mdb_read_data(txn, leaf, &data);
+ mdb_node_read(txn, leaf, &data);
idl = (ID *) data.mv_data;
mop = malloc(sizeof(MDB_oldpages) + MDB_IDL_SIZEOF(idl) - sizeof(pgno_t));
mop->mo_next = txn->mt_env->me_pghead;
* @return 0 on success, non-zero on failure.
*/
static int
-mdb_touch(MDB_cursor *mc)
+mdb_page_touch(MDB_cursor *mc)
{
MDB_page *mp = mc->mc_pg[mc->mc_top];
pgno_t pgno;
if (!F_ISSET(mp->mp_flags, P_DIRTY)) {
MDB_page *np;
- if ((np = mdb_alloc_page(mc, 1)) == NULL)
+ if ((np = mdb_page_alloc(mc, 1)) == NULL)
return ENOMEM;
DPRINTF("touched db %u page %zu -> %zu", mc->mc_dbi, mp->mp_pgno, np->mp_pgno);
assert(mp->mp_pgno != np->mp_pgno);
/* should only be one record now */
if (env->me_pghead) {
/* make sure first page of freeDB is touched and on freelist */
- mdb_search_page(&mc, NULL, 1);
+ mdb_page_search(&mc, NULL, 1);
}
/* save to free list */
if (!MDB_IDL_IS_ZERO(txn->mt_free_pgs)) {
/* make sure last page of freeDB is touched and on freelist */
key.mv_size = MAXKEYSIZE+1;
key.mv_data = NULL;
- mdb_search_page(&mc, &key, 1);
+ mdb_page_search(&mc, &key, 1);
mdb_midl_sort(txn->mt_free_pgs);
#if DEBUG > 1
/* only for aligned size_t's */
static int
-longcmp(const MDB_val *a, const MDB_val *b)
+mdb_cmp_long(const MDB_val *a, const MDB_val *b)
{
return (*(size_t *)a->mv_data < *(size_t *)b->mv_data) ? -1 :
*(size_t *)a->mv_data > *(size_t *)b->mv_data;
/* only for aligned ints */
static int
-intcmp(const MDB_val *a, const MDB_val *b)
+mdb_cmp_int(const MDB_val *a, const MDB_val *b)
{
return (*(unsigned int *)a->mv_data < *(unsigned int *)b->mv_data) ? -1 :
*(unsigned int *)a->mv_data > *(unsigned int *)b->mv_data;
/* ints must always be the same size */
static int
-cintcmp(const MDB_val *a, const MDB_val *b)
+mdb_cmp_cint(const MDB_val *a, const MDB_val *b)
{
#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned short *u, *c;
}
static int
-memncmp(const MDB_val *a, const MDB_val *b)
+mdb_cmp_memn(const MDB_val *a, const MDB_val *b)
{
int diff;
ssize_t len_diff;
}
static int
-memnrcmp(const MDB_val *a, const MDB_val *b)
+mdb_cmp_memnr(const MDB_val *a, const MDB_val *b)
{
const unsigned char *p1, *p2, *p1_lim;
ssize_t len_diff;
* If no entry larger or equal to the key is found, returns NULL.
*/
static MDB_node *
-mdb_search_node(MDB_cursor *mc, MDB_val *key, int *exactp)
+mdb_node_search(MDB_cursor *mc, MDB_val *key, int *exactp)
{
unsigned int i = 0, nkeys;
int low, high;
cmp = mc->mc_dbx->md_cmp;
/* Branch pages have no data, so if using integer keys,
- * alignment is guaranteed. Use faster intcmp.
+ * alignment is guaranteed. Use faster mdb_cmp_int.
*/
- if (cmp == cintcmp && IS_BRANCH(mp)) {
+ if (cmp == mdb_cmp_cint && IS_BRANCH(mp)) {
if (NODEPTR(mp, 1)->mn_ksize == sizeof(size_t))
- cmp = longcmp;
+ cmp = mdb_cmp_long;
else
- cmp = intcmp;
+ cmp = mdb_cmp_int;
}
if (IS_LEAF2(mp)) {
}
static void
-cursor_pop_page(MDB_cursor *mc)
+mdb_cursor_pop(MDB_cursor *mc)
{
MDB_page *top;
}
static int
-cursor_push_page(MDB_cursor *mc, MDB_page *mp)
+mdb_cursor_push(MDB_cursor *mc, MDB_page *mp)
{
DPRINTF("pushing page %zu on db %u cursor %p", mp->mp_pgno,
mc->mc_dbi, (void *) mc);
}
static int
-mdb_get_page(MDB_txn *txn, pgno_t pgno, MDB_page **ret)
+mdb_page_get(MDB_txn *txn, pgno_t pgno, MDB_page **ret)
{
MDB_page *p = NULL;
}
static int
-mdb_search_page_root(MDB_cursor *mc, MDB_val *key, int modify)
+mdb_page_search_root(MDB_cursor *mc, MDB_val *key, int modify)
{
MDB_page *mp = mc->mc_pg[mc->mc_top];
DKBUF;
i = NUMKEYS(mp)-1;
} else {
int exact;
- node = mdb_search_node(mc, key, &exact);
+ node = mdb_node_search(mc, key, &exact);
if (node == NULL)
i = NUMKEYS(mp) - 1;
else {
assert(i < NUMKEYS(mp));
node = NODEPTR(mp, i);
- if ((rc = mdb_get_page(mc->mc_txn, NODEPGNO(node), &mp)))
+ if ((rc = mdb_page_get(mc->mc_txn, NODEPGNO(node), &mp)))
return rc;
mc->mc_ki[mc->mc_top] = i;
- if ((rc = cursor_push_page(mc, mp)))
+ if ((rc = mdb_cursor_push(mc, mp)))
return rc;
if (modify) {
- if ((rc = mdb_touch(mc)) != 0)
+ if ((rc = mdb_page_touch(mc)) != 0)
return rc;
mp = mc->mc_pg[mc->mc_top];
}
* If modify is true, visited pages are updated with new page numbers.
*/
static int
-mdb_search_page(MDB_cursor *mc, MDB_val *key, int modify)
+mdb_page_search(MDB_cursor *mc, MDB_val *key, int modify)
{
int rc;
pgno_t root;
return MDB_NOTFOUND;
}
- if ((rc = mdb_get_page(mc->mc_txn, root, &mc->mc_pg[0])))
+ if ((rc = mdb_page_get(mc->mc_txn, root, &mc->mc_pg[0])))
return rc;
mc->mc_snum = 1;
if (mc->mc_dbi > MAIN_DBI && !mc->mc_dbx->md_dirty) {
MDB_cursor mc2;
mdb_cursor_init(&mc2, mc->mc_txn, MAIN_DBI, NULL);
- rc = mdb_search_page(&mc2, &mc->mc_dbx->md_name, 1);
+ rc = mdb_page_search(&mc2, &mc->mc_dbx->md_name, 1);
if (rc)
return rc;
mc->mc_dbx->md_dirty = 1;
}
if (!F_ISSET(mc->mc_pg[0]->mp_flags, P_DIRTY)) {
- if ((rc = mdb_touch(mc)))
+ if ((rc = mdb_page_touch(mc)))
return rc;
mc->mc_db->md_root = mc->mc_pg[0]->mp_pgno;
}
}
- return mdb_search_page_root(mc, key, modify);
+ return mdb_page_search_root(mc, key, modify);
}
static int
-mdb_read_data(MDB_txn *txn, MDB_node *leaf, MDB_val *data)
+mdb_node_read(MDB_txn *txn, MDB_node *leaf, MDB_val *data)
{
MDB_page *omp; /* overflow mpage */
pgno_t pgno;
*/
data->mv_size = NODEDSZ(leaf);
memcpy(&pgno, NODEDATA(leaf), sizeof(pgno));
- if ((rc = mdb_get_page(txn, pgno, &omp))) {
+ if ((rc = mdb_page_get(txn, pgno, &omp))) {
DPRINTF("read overflow page %zu failed", pgno);
return rc;
}
}
static int
-mdb_sibling(MDB_cursor *mc, int move_right)
+mdb_cursor_sibling(MDB_cursor *mc, int move_right)
{
int rc;
MDB_node *indx;
return MDB_NOTFOUND; /* root has no siblings */
}
- cursor_pop_page(mc);
+ mdb_cursor_pop(mc);
DPRINTF("parent page is page %zu, index %u",
mc->mc_pg[mc->mc_top]->mp_pgno, mc->mc_ki[mc->mc_top]);
: (mc->mc_ki[mc->mc_top] == 0)) {
DPRINTF("no more keys left, moving to %s sibling",
move_right ? "right" : "left");
- if ((rc = mdb_sibling(mc, move_right)) != MDB_SUCCESS)
+ if ((rc = mdb_cursor_sibling(mc, move_right)) != MDB_SUCCESS)
return rc;
} else {
if (move_right)
assert(IS_BRANCH(mc->mc_pg[mc->mc_top]));
indx = NODEPTR(mc->mc_pg[mc->mc_top], mc->mc_ki[mc->mc_top]);
- if ((rc = mdb_get_page(mc->mc_txn, NODEPGNO(indx), &mp)))
+ if ((rc = mdb_page_get(mc->mc_txn, NODEPGNO(indx), &mp)))
return rc;;
- cursor_push_page(mc, mp);
+ mdb_cursor_push(mc, mp);
return MDB_SUCCESS;
}
if (mc->mc_ki[mc->mc_top] + 1u >= NUMKEYS(mp)) {
DPUTS("=====> move to next sibling page");
- if (mdb_sibling(mc, 1) != MDB_SUCCESS) {
+ if (mdb_cursor_sibling(mc, 1) != MDB_SUCCESS) {
mc->mc_flags |= C_EOF;
return MDB_NOTFOUND;
}
mdb_xcursor_init1(mc, leaf);
}
if (data) {
- if ((rc = mdb_read_data(mc->mc_txn, leaf, data) != MDB_SUCCESS))
+ if ((rc = mdb_node_read(mc->mc_txn, leaf, data) != MDB_SUCCESS))
return rc;
if (F_ISSET(leaf->mn_flags, F_DUPDATA)) {
if (mc->mc_ki[mc->mc_top] == 0) {
DPUTS("=====> move to prev sibling page");
- if (mdb_sibling(mc, 0) != MDB_SUCCESS) {
+ if (mdb_cursor_sibling(mc, 0) != MDB_SUCCESS) {
mc->mc_flags &= ~C_INITIALIZED;
return MDB_NOTFOUND;
}
mdb_xcursor_init1(mc, leaf);
}
if (data) {
- if ((rc = mdb_read_data(mc->mc_txn, leaf, data) != MDB_SUCCESS))
+ if ((rc = mdb_node_read(mc->mc_txn, leaf, data) != MDB_SUCCESS))
return rc;
if (F_ISSET(leaf->mn_flags, F_DUPDATA)) {
}
}
- rc = mdb_search_page(mc, key, 0);
+ rc = mdb_page_search(mc, key, 0);
if (rc != MDB_SUCCESS)
return rc;
assert(IS_LEAF(mp));
set2:
- leaf = mdb_search_node(mc, key, exactp);
+ leaf = mdb_node_search(mc, key, exactp);
if (exactp != NULL && !*exactp) {
/* MDB_SET specified and not an exact match. */
return MDB_NOTFOUND;
if (leaf == NULL) {
DPUTS("===> inexact leaf not found, goto sibling");
- if ((rc = mdb_sibling(mc, 1)) != MDB_SUCCESS)
+ if ((rc = mdb_cursor_sibling(mc, 1)) != MDB_SUCCESS)
return rc; /* no entries matched */
mp = mc->mc_pg[mc->mc_top];
assert(IS_LEAF(mp));
}
} else if (op == MDB_GET_BOTH || op == MDB_GET_BOTH_RANGE) {
MDB_val d2;
- if ((rc = mdb_read_data(mc->mc_txn, leaf, &d2)) != MDB_SUCCESS)
+ if ((rc = mdb_node_read(mc->mc_txn, leaf, &d2)) != MDB_SUCCESS)
return rc;
rc = mc->mc_dbx->md_dcmp(data, &d2);
if (rc) {
} else {
if (mc->mc_xcursor)
mc->mc_xcursor->mx_cursor.mc_flags = 0;
- if ((rc = mdb_read_data(mc->mc_txn, leaf, data)) != MDB_SUCCESS)
+ if ((rc = mdb_node_read(mc->mc_txn, leaf, data)) != MDB_SUCCESS)
return rc;
}
}
int rc;
MDB_node *leaf;
- rc = mdb_search_page(mc, NULL, 0);
+ rc = mdb_page_search(mc, NULL, 0);
if (rc != MDB_SUCCESS)
return rc;
assert(IS_LEAF(mc->mc_pg[mc->mc_top]));
} else {
if (mc->mc_xcursor)
mc->mc_xcursor->mx_cursor.mc_flags = 0;
- if ((rc = mdb_read_data(mc->mc_txn, leaf, data)) != MDB_SUCCESS)
+ if ((rc = mdb_node_read(mc->mc_txn, leaf, data)) != MDB_SUCCESS)
return rc;
}
}
lkey.mv_size = MAXKEYSIZE+1;
lkey.mv_data = NULL;
- rc = mdb_search_page(mc, &lkey, 0);
+ rc = mdb_page_search(mc, &lkey, 0);
if (rc != MDB_SUCCESS)
return rc;
assert(IS_LEAF(mc->mc_pg[mc->mc_top]));
} else {
if (mc->mc_xcursor)
mc->mc_xcursor->mx_cursor.mc_flags = 0;
- if ((rc = mdb_read_data(mc->mc_txn, leaf, data)) != MDB_SUCCESS)
+ if ((rc = mdb_node_read(mc->mc_txn, leaf, data)) != MDB_SUCCESS)
return rc;
}
}
if (mc->mc_dbi > MAIN_DBI && !mc->mc_dbx->md_dirty) {
MDB_cursor mc2;
mdb_cursor_init(&mc2, mc->mc_txn, MAIN_DBI, NULL);
- rc = mdb_search_page(&mc2, &mc->mc_dbx->md_name, 1);
+ rc = mdb_page_search(&mc2, &mc->mc_dbx->md_name, 1);
if (rc)
return rc;
mc->mc_dbx->md_dirty = 1;
}
for (mc->mc_top = 0; mc->mc_top < mc->mc_snum; mc->mc_top++) {
if (!F_ISSET(mc->mc_pg[mc->mc_top]->mp_flags, P_DIRTY)) {
- rc = mdb_touch(mc);
+ rc = mdb_page_touch(mc);
if (rc)
return rc;
if (!mc->mc_top) {
MDB_page *np;
/* new database, write a root leaf page */
DPUTS("allocating new root leaf page");
- if ((np = mdb_new_page(mc, P_LEAF, 1)) == NULL) {
+ if ((np = mdb_page_new(mc, P_LEAF, 1)) == NULL) {
return ENOMEM;
}
mc->mc_snum = 0;
- cursor_push_page(mc, np);
+ mdb_cursor_push(mc, np);
mc->mc_db->md_root = np->mp_pgno;
mc->mc_db->md_depth++;
mc->mc_dbx->md_dirty = 1;
memcpy(NODEDATA(leaf), &dummy, sizeof(dummy));
goto put_sub;
}
- mdb_del_node(mc->mc_pg[mc->mc_top], mc->mc_ki[mc->mc_top], 0);
+ mdb_node_del(mc->mc_pg[mc->mc_top], mc->mc_ki[mc->mc_top], 0);
do_sub = 1;
rdata = &xdata;
xdata.mv_size = sizeof(MDB_db);
memcpy(NODEDATA(leaf), data->mv_data, data->mv_size);
goto done;
}
- mdb_del_node(mc->mc_pg[mc->mc_top], mc->mc_ki[mc->mc_top], 0);
+ mdb_node_del(mc->mc_pg[mc->mc_top], mc->mc_ki[mc->mc_top], 0);
} else {
DPRINTF("inserting key at index %i", mc->mc_ki[mc->mc_top]);
}
new_sub:
nsize = IS_LEAF2(mc->mc_pg[mc->mc_top]) ? key->mv_size : mdb_leaf_size(mc->mc_txn->mt_env, key, rdata);
if (SIZELEFT(mc->mc_pg[mc->mc_top]) < nsize) {
- rc = mdb_split(mc, key, rdata, P_INVALID);
+ rc = mdb_page_split(mc, key, rdata, P_INVALID);
} else {
/* There is room already in this leaf page. */
- rc = mdb_add_node(mc, mc->mc_ki[mc->mc_top], key, rdata, 0, 0);
+ rc = mdb_node_add(mc, mc->mc_ki[mc->mc_top], key, rdata, 0, 0);
}
if (rc != MDB_SUCCESS)
}
/* add all the child DB's pages to the free list */
- rc = mdb_search_page(&mc->mc_xcursor->mx_cursor, NULL, 0);
+ rc = mdb_page_search(&mc->mc_xcursor->mx_cursor, NULL, 0);
if (rc == MDB_SUCCESS) {
MDB_node *ni;
MDB_cursor *mx;
mc->mc_db->md_entries -=
mx->mc_db->md_entries;
- cursor_pop_page(mx);
+ mdb_cursor_pop(mx);
while (mx->mc_snum > 1) {
for (i=0; i<NUMKEYS(mx->mc_pg[mx->mc_top]); i++) {
MDB_page *mp;
pgno_t pg;
ni = NODEPTR(mx->mc_pg[mx->mc_top], i);
pg = NODEPGNO(ni);
- if ((rc = mdb_get_page(mc->mc_txn, pg, &mp)))
+ if ((rc = mdb_page_get(mc->mc_txn, pg, &mp)))
return rc;
/* free it */
mdb_midl_append(mc->mc_txn->mt_free_pgs, pg);
}
- rc = mdb_sibling(mx, 1);
+ rc = mdb_cursor_sibling(mx, 1);
if (rc)
break;
}
/* Allocate a page and initialize it
*/
static MDB_page *
-mdb_new_page(MDB_cursor *mc, uint32_t flags, int num)
+mdb_page_new(MDB_cursor *mc, uint32_t flags, int num)
{
MDB_page *np;
- if ((np = mdb_alloc_page(mc, num)) == NULL)
+ if ((np = mdb_page_alloc(mc, num)) == NULL)
return NULL;
DPRINTF("allocated new mpage %zu, page size %u",
np->mp_pgno, mc->mc_txn->mt_env->me_psize);
}
static int
-mdb_add_node(MDB_cursor *mc, indx_t indx,
+mdb_node_add(MDB_cursor *mc, indx_t indx,
MDB_val *key, MDB_val *data, pgno_t pgno, uint8_t flags)
{
unsigned int i;
DPRINTF("data size is %zu, put on overflow page",
data->mv_size);
node_size += sizeof(pgno_t);
- if ((ofp = mdb_new_page(mc, P_OVERFLOW, ovpages)) == NULL)
+ if ((ofp = mdb_page_new(mc, P_OVERFLOW, ovpages)) == NULL)
return ENOMEM;
DPRINTF("allocated overflow page %zu", ofp->mp_pgno);
flags |= F_BIGDATA;
}
static void
-mdb_del_node(MDB_page *mp, indx_t indx, int ksize)
+mdb_node_del(MDB_page *mp, indx_t indx, int ksize)
{
unsigned int sz;
indx_t i, j, numkeys, ptr;
mx->mx_dbx.md_name.mv_size = node->mn_ksize;
mx->mx_cursor.mc_snum = 0;
mx->mx_cursor.mc_flags = 0;
- if (mx->mx_dbx.md_cmp == intcmp && mx->mx_db.md_pad == sizeof(size_t))
- mx->mx_dbx.md_cmp = longcmp;
+ if (mx->mx_dbx.md_cmp == mdb_cmp_int && mx->mx_db.md_pad == sizeof(size_t))
+ mx->mx_dbx.md_cmp = mdb_cmp_long;
}
static void
/* Move a node from csrc to cdst.
*/
static int
-mdb_move_node(MDB_cursor *csrc, MDB_cursor *cdst)
+mdb_node_move(MDB_cursor *csrc, MDB_cursor *cdst)
{
int rc;
MDB_node *srcnode;
DKBUF;
/* Mark src and dst as dirty. */
- if ((rc = mdb_touch(csrc)) ||
- (rc = mdb_touch(cdst)))
+ if ((rc = mdb_page_touch(csrc)) ||
+ (rc = mdb_page_touch(cdst)))
return rc;
if (IS_LEAF2(csrc->mc_pg[csrc->mc_top])) {
unsigned int snum = csrc->mc_snum;
MDB_node *s2;
/* must find the lowest key below src */
- mdb_search_page_root(csrc, NULL, 0);
+ mdb_page_search_root(csrc, NULL, 0);
s2 = NODEPTR(csrc->mc_pg[csrc->mc_top], 0);
key.mv_size = NODEKSZ(s2);
key.mv_data = NODEKEY(s2);
/* Add the node to the destination page.
*/
- rc = mdb_add_node(cdst, cdst->mc_ki[cdst->mc_top], &key, &data, NODEPGNO(srcnode),
+ rc = mdb_node_add(cdst, cdst->mc_ki[cdst->mc_top], &key, &data, NODEPGNO(srcnode),
srcnode->mn_flags);
if (rc != MDB_SUCCESS)
return rc;
/* Delete the node from the source page.
*/
- mdb_del_node(csrc->mc_pg[csrc->mc_top], csrc->mc_ki[csrc->mc_top], key.mv_size);
+ mdb_node_del(csrc->mc_pg[csrc->mc_top], csrc->mc_ki[csrc->mc_top], key.mv_size);
/* Update the parent separators.
*/
}
static int
-mdb_merge(MDB_cursor *csrc, MDB_cursor *cdst)
+mdb_page_merge(MDB_cursor *csrc, MDB_cursor *cdst)
{
int rc;
indx_t i, j;
assert(cdst->mc_snum > 1);
/* Mark dst as dirty. */
- if ((rc = mdb_touch(cdst)))
+ if ((rc = mdb_page_touch(cdst)))
return rc;
/* Move all nodes from src to dst.
key.mv_size = csrc->mc_db->md_pad;
key.mv_data = METADATA(csrc->mc_pg[csrc->mc_top]);
for (i = 0; i < NUMKEYS(csrc->mc_pg[csrc->mc_top]); i++, j++) {
- rc = mdb_add_node(cdst, j, &key, NULL, 0, 0);
+ rc = mdb_node_add(cdst, j, &key, NULL, 0, 0);
if (rc != MDB_SUCCESS)
return rc;
key.mv_data = (char *)key.mv_data + key.mv_size;
key.mv_data = NODEKEY(srcnode);
data.mv_size = NODEDSZ(srcnode);
data.mv_data = NODEDATA(srcnode);
- rc = mdb_add_node(cdst, j, &key, &data, NODEPGNO(srcnode), srcnode->mn_flags);
+ rc = mdb_node_add(cdst, j, &key, &data, NODEPGNO(srcnode), srcnode->mn_flags);
if (rc != MDB_SUCCESS)
return rc;
}
/* Unlink the src page from parent and add to free list.
*/
- mdb_del_node(csrc->mc_pg[csrc->mc_top-1], csrc->mc_ki[csrc->mc_top-1], 0);
+ mdb_node_del(csrc->mc_pg[csrc->mc_top-1], csrc->mc_ki[csrc->mc_top-1], 0);
if (csrc->mc_ki[csrc->mc_top-1] == 0) {
key.mv_size = 0;
if ((rc = mdb_update_key(csrc->mc_pg[csrc->mc_top-1], 0, &key)) != MDB_SUCCESS)
csrc->mc_db->md_leaf_pages--;
else
csrc->mc_db->md_branch_pages--;
- cursor_pop_page(csrc);
+ mdb_cursor_pop(csrc);
return mdb_rebalance(csrc);
}
DPUTS("collapsing root page!");
mdb_midl_append(mc->mc_txn->mt_free_pgs, mc->mc_pg[mc->mc_top]->mp_pgno);
mc->mc_db->md_root = NODEPGNO(NODEPTR(mc->mc_pg[mc->mc_top], 0));
- if ((rc = mdb_get_page(mc->mc_txn, mc->mc_db->md_root,
+ if ((rc = mdb_page_get(mc->mc_txn, mc->mc_db->md_root,
&mc->mc_pg[mc->mc_top])))
return rc;
mc->mc_db->md_depth--;
DPUTS("reading right neighbor");
mn.mc_ki[ptop]++;
node = NODEPTR(mc->mc_pg[ptop], mn.mc_ki[ptop]);
- if ((rc = mdb_get_page(mc->mc_txn, NODEPGNO(node), &mn.mc_pg[mn.mc_top])))
+ if ((rc = mdb_page_get(mc->mc_txn, NODEPGNO(node), &mn.mc_pg[mn.mc_top])))
return rc;
mn.mc_ki[mn.mc_top] = 0;
mc->mc_ki[mc->mc_top] = NUMKEYS(mc->mc_pg[mc->mc_top]);
DPUTS("reading left neighbor");
mn.mc_ki[ptop]--;
node = NODEPTR(mc->mc_pg[ptop], mn.mc_ki[ptop]);
- if ((rc = mdb_get_page(mc->mc_txn, NODEPGNO(node), &mn.mc_pg[mn.mc_top])))
+ if ((rc = mdb_page_get(mc->mc_txn, NODEPGNO(node), &mn.mc_pg[mn.mc_top])))
return rc;
mn.mc_ki[mn.mc_top] = NUMKEYS(mn.mc_pg[mn.mc_top]) - 1;
mc->mc_ki[mc->mc_top] = 0;
* Otherwise we should try to merge them.
*/
if (PAGEFILL(mc->mc_txn->mt_env, mn.mc_pg[mn.mc_top]) >= FILL_THRESHOLD && NUMKEYS(mn.mc_pg[mn.mc_top]) >= 2)
- return mdb_move_node(&mn, mc);
+ return mdb_node_move(&mn, mc);
else { /* FIXME: if (has_enough_room()) */
if (mc->mc_ki[ptop] == 0)
- return mdb_merge(&mn, mc);
+ return mdb_page_merge(&mn, mc);
else
- return mdb_merge(mc, &mn);
+ return mdb_page_merge(mc, &mn);
}
}
pg++;
}
}
- mdb_del_node(mc->mc_pg[mc->mc_top], mc->mc_ki[mc->mc_top], mc->mc_db->md_pad);
+ mdb_node_del(mc->mc_pg[mc->mc_top], mc->mc_ki[mc->mc_top], mc->mc_db->md_pad);
mc->mc_db->md_entries--;
rc = mdb_rebalance(mc);
if (rc != MDB_SUCCESS)
* refer to a node in the new right sibling page.
*/
static int
-mdb_split(MDB_cursor *mc, MDB_val *newkey, MDB_val *newdata, pgno_t newpgno)
+mdb_page_split(MDB_cursor *mc, MDB_val *newkey, MDB_val *newdata, pgno_t newpgno)
{
uint8_t flags;
int rc = MDB_SUCCESS, ins_new = 0;
DKEY(newkey), mc->mc_ki[mc->mc_top]);
if (mc->mc_snum < 2) {
- if ((pp = mdb_new_page(mc, P_BRANCH, 1)) == NULL)
+ if ((pp = mdb_page_new(mc, P_BRANCH, 1)) == NULL)
return ENOMEM;
/* shift current top to make room for new parent */
mc->mc_pg[1] = mc->mc_pg[0];
mc->mc_db->md_depth++;
/* Add left (implicit) pointer. */
- if ((rc = mdb_add_node(mc, 0, NULL, NULL, mp->mp_pgno, 0)) != MDB_SUCCESS) {
+ if ((rc = mdb_node_add(mc, 0, NULL, NULL, mp->mp_pgno, 0)) != MDB_SUCCESS) {
/* undo the pre-push */
mc->mc_pg[0] = mc->mc_pg[1];
mc->mc_ki[0] = mc->mc_ki[1];
}
/* Create a right sibling. */
- if ((rp = mdb_new_page(mc, mp->mp_flags, 1)) == NULL)
+ if ((rp = mdb_page_new(mc, mp->mp_flags, 1)) == NULL)
return ENOMEM;
mdb_cursor_copy(mc, &mn);
mn.mc_pg[mn.mc_top] = rp;
if (SIZELEFT(mn.mc_pg[ptop]) < mdb_branch_size(mc->mc_txn->mt_env, &sepkey)) {
mn.mc_snum--;
mn.mc_top--;
- rc = mdb_split(&mn, &sepkey, NULL, rp->mp_pgno);
+ rc = mdb_page_split(&mn, &sepkey, NULL, rp->mp_pgno);
/* Right page might now have changed parent.
* Check if left page also changed parent.
}
} else {
mn.mc_top--;
- rc = mdb_add_node(&mn, mn.mc_ki[ptop], &sepkey, NULL, rp->mp_pgno, 0);
+ rc = mdb_node_add(&mn, mn.mc_ki[ptop], &sepkey, NULL, rp->mp_pgno, 0);
mn.mc_top++;
}
if (IS_LEAF2(rp)) {
rkey.mv_size = 0;
}
- rc = mdb_add_node(mc, j, &rkey, &rdata, pgno, flags);
+ rc = mdb_node_add(mc, j, &rkey, &rdata, pgno, flags);
}
/* reset back to original page */
mdb_default_cmp(MDB_txn *txn, MDB_dbi dbi)
{
if (txn->mt_dbs[dbi].md_flags & MDB_REVERSEKEY)
- txn->mt_dbxs[dbi].md_cmp = memnrcmp;
+ txn->mt_dbxs[dbi].md_cmp = mdb_cmp_memnr;
else if (txn->mt_dbs[dbi].md_flags & MDB_INTEGERKEY)
- txn->mt_dbxs[dbi].md_cmp = cintcmp;
+ txn->mt_dbxs[dbi].md_cmp = mdb_cmp_cint;
else
- txn->mt_dbxs[dbi].md_cmp = memncmp;
+ txn->mt_dbxs[dbi].md_cmp = mdb_cmp_memn;
if (txn->mt_dbs[dbi].md_flags & MDB_DUPSORT) {
if (txn->mt_dbs[dbi].md_flags & MDB_INTEGERDUP) {
if (txn->mt_dbs[dbi].md_flags & MDB_DUPFIXED)
- txn->mt_dbxs[dbi].md_dcmp = intcmp;
+ txn->mt_dbxs[dbi].md_dcmp = mdb_cmp_int;
else
- txn->mt_dbxs[dbi].md_dcmp = cintcmp;
+ txn->mt_dbxs[dbi].md_dcmp = mdb_cmp_cint;
} else if (txn->mt_dbs[dbi].md_flags & MDB_REVERSEDUP) {
- txn->mt_dbxs[dbi].md_dcmp = memnrcmp;
+ txn->mt_dbxs[dbi].md_dcmp = mdb_cmp_memnr;
} else {
- txn->mt_dbxs[dbi].md_dcmp = memncmp;
+ txn->mt_dbxs[dbi].md_dcmp = mdb_cmp_memn;
}
} else {
txn->mt_dbxs[dbi].md_dcmp = NULL;
projects / platform / upstream / lmdb.git / commitdiff