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Commit d6521504 authored by Yoni Fogel's avatar Yoni Fogel
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Addresses #293 

Renamed some accessor functions and made them nonstatic
so that the test programs can access them.

Allocated the fake selfread/selfwrite trees in the
function that requests them (and creates if necessary) instead of
toku_lt_create

git-svn-id: file:///svn/tokudb@1895 c7de825b-a66e-492c-adef-691d508d4ae1
parent 9b89cd9c
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Showing with 42 additions and 30 deletions
src/lock_tree/locktree.c
View file @ d6521504
......@@ -46,7 +46,7 @@ static int __toku_lt_txn_cmp(void* a, void* b) {
return a < b ? -1 : (a != b);
}
int __toku_lt_point_cmp(void* a, void* b) {
int toku_lt_point_cmp(void* a, void* b) {
int partial_result;
DBT point_1;
DBT point_2;
......@@ -153,7 +153,7 @@ static int __toku_p_makecopy(toku_lock_tree* tree, void** ppoint) {
/* Provides access to a selfwrite tree for a particular transaction.
Returns NULL if it does not exist yet. */
static toku_range_tree* __toku_lt_ifexist_selfwrite(toku_lock_tree* tree,
toku_range_tree* __toku_lt_ifexist_selfwrite(toku_lock_tree* tree,
DB_TXN* txn) {
assert(tree && txn);
//TODO: Implement real version.
......@@ -162,8 +162,7 @@ static toku_range_tree* __toku_lt_ifexist_selfwrite(toku_lock_tree* tree,
/* Provides access to a selfread tree for a particular transaction.
Returns NULL if it does not exist yet. */
static toku_range_tree* __toku_lt_ifexist_selfread(toku_lock_tree* tree,
DB_TXN* txn) {
toku_range_tree* __toku_lt_ifexist_selfread(toku_lock_tree* tree, DB_TXN* txn) {
assert(tree && txn);
//TODO: Implement.
return tree->selfread;
......@@ -173,9 +172,20 @@ static toku_range_tree* __toku_lt_ifexist_selfread(toku_lock_tree* tree,
Creates it if it does not exist. */
static int __toku_lt_selfwrite(toku_lock_tree* tree, DB_TXN* txn,
toku_range_tree** pselfwrite) {
int r;
assert(tree && txn && pselfwrite);
*pselfwrite = tree->selfwrite;
//TODO: Implement.
//TODO: Remove this, and use multiples per transaction
if (!tree->selfwrite)
{
r = toku_rt_create(&tree->selfwrite,
toku_lt_point_cmp, __toku_lt_txn_cmp, FALSE,
tree->malloc, tree->free, tree->realloc);
if(r!=0) return r;
}
assert(tree->selfwrite);
*pselfwrite = tree->selfwrite;
return 0;
}
......@@ -183,9 +193,20 @@ static int __toku_lt_selfwrite(toku_lock_tree* tree, DB_TXN* txn,
Creates it if it does not exist. */
static int __toku_lt_selfread(toku_lock_tree* tree, DB_TXN* txn,
toku_range_tree** pselfread) {
int r;
assert(tree && txn && pselfread);
*pselfread = tree->selfread;
//TODO: Implement.
//TODO: Remove this, and use multiples per transaction
if (!tree->selfread)
{
r = toku_rt_create(&tree->selfread,
toku_lt_point_cmp, __toku_lt_txn_cmp, FALSE,
tree->malloc, tree->free, tree->realloc);
if(r!=0) return r;
}
assert(tree->selfread);
*pselfread = tree->selfread;
return 0;
}
......@@ -216,8 +237,8 @@ static int __toku_lt_rt_dominates(toku_lock_tree* tree, toku_range* query,
return 0;
}
assert(numfound == 1);
*dominated = (__toku_lt_point_cmp(query->left, buf[0].left) >= 0 &&
__toku_lt_point_cmp(query->right, buf[0].right) <= 0);
*dominated = (toku_lt_point_cmp(query->left, buf[0].left) >= 0 &&
toku_lt_point_cmp(query->right, buf[0].right) <= 0);
return 0;
}
......@@ -396,7 +417,7 @@ static void __toku_lt_extend_extreme(toku_lock_tree* tree,toku_range* to_insert,
for (i = 0; i < numfound; i++) {
int c;
/* Find the extreme left end-point among overlapping ranges */
if ((c = __toku_lt_point_cmp(tree->buf[i].left, to_insert->left))
if ((c = toku_lt_point_cmp(tree->buf[i].left, to_insert->left))
<= 0) {
assert(*alloc_left || c < 0);
assert(tree->buf[i].left != to_insert->left);
......@@ -405,7 +426,7 @@ static void __toku_lt_extend_extreme(toku_lock_tree* tree,toku_range* to_insert,
to_insert->left = tree->buf[i].left;
}
/* Find the extreme right end-point */
if ((c = __toku_lt_point_cmp(tree->buf[i].right, to_insert->right))
if ((c = toku_lt_point_cmp(tree->buf[i].right, to_insert->right))
>= 0) {
assert(*alloc_right || c > 0);
assert(tree->buf[i].right != to_insert->left ||
......@@ -425,7 +446,7 @@ static int __toku_lt_alloc_extreme(toku_lock_tree* tree, toku_range* to_insert,
int r;
if (alloc_left && alloc_right &&
__toku_lt_point_cmp(to_insert->left, to_insert->right) == 0) {
toku_lt_point_cmp(to_insert->left, to_insert->right) == 0) {
*alloc_right = FALSE;
copy_left = TRUE;
}
......@@ -468,7 +489,7 @@ static void __toku_lt_free_points(toku_lock_tree* tree, toku_range* to_insert,
/*
We will maintain the invariant: (separately for read and write
environments)
(__toku_lt_point_cmp(a, b) == 0 && a.txn == b.txn) => a == b
(toku_lt_point_cmp(a, b) == 0 && a.txn == b.txn) => a == b
*/
/* Do not double-free. */
if (tree->buf[i].right != tree->buf[i].left &&
......@@ -646,7 +667,7 @@ int toku_lt_create(toku_lock_tree** ptree, DB* db, BOOL duplicates,
temp_tree->free = user_free;
temp_tree->realloc = user_realloc;
r = toku_rt_create(&temp_tree->mainread,
__toku_lt_point_cmp, __toku_lt_txn_cmp, TRUE,
toku_lt_point_cmp, __toku_lt_txn_cmp, TRUE,
user_malloc, user_free, user_realloc);
if (0) {
died2:
......@@ -655,7 +676,7 @@ int toku_lt_create(toku_lock_tree** ptree, DB* db, BOOL duplicates,
}
if (r!=0) goto died1;
r = toku_rt_create(&temp_tree->borderwrite,
__toku_lt_point_cmp, __toku_lt_txn_cmp, FALSE,
toku_lt_point_cmp, __toku_lt_txn_cmp, FALSE,
user_malloc, user_free, user_realloc);
if (0) {
died3:
......@@ -663,16 +684,7 @@ int toku_lt_create(toku_lock_tree** ptree, DB* db, BOOL duplicates,
goto died2;
}
if (r!=0) goto died2;
//TODO: Remove this, and use multiples per transaction
r = toku_rt_create(&temp_tree->selfwrite,
__toku_lt_point_cmp, __toku_lt_txn_cmp, FALSE,
user_malloc, user_free, user_realloc);
assert(temp_tree->selfwrite);
//TODO: Remove this, and use multiples per transaction
r = toku_rt_create(&temp_tree->selfread,
__toku_lt_point_cmp, __toku_lt_txn_cmp, FALSE,
user_malloc, user_free, user_realloc);
assert(temp_tree->selfread);
temp_tree->buflen = __toku_default_buflen;
temp_tree->buf = (toku_range*)
user_malloc(temp_tree->buflen * sizeof(toku_range));
......@@ -732,7 +744,7 @@ int toku_lt_acquire_range_read_lock(toku_lock_tree* tree, DB_TXN* txn,
/* Verify left <= right. */
if ((key_left != key_right || data_left != data_right) &&
__toku_lt_point_cmp(&left, &right) > 0) return EDOM;
toku_lt_point_cmp(&left, &right) > 0) return EDOM;
__toku_init_query(&query, &left, &right);
......@@ -942,7 +954,7 @@ int toku_lt_acquire_range_write_lock(toku_lock_tree* tree, DB_TXN* txn,
/* Verify left <= right. */
if ((key_left != key_right || data_left != data_right) &&
__toku_lt_point_cmp(&left, &right) > 0) return EDOM;
toku_lt_point_cmp(&left, &right) > 0) return EDOM;
return ENOSYS;
......
src/lock_tree/locktree.h
View file @ d6521504
......@@ -52,7 +52,7 @@ typedef struct {
*
* Return values conform to cmp from quicksort(3).
*/
int __toku_lt_point_cmp(void* a, void* b);
int toku_lt_point_cmp(void* a, void* b);
/*
* Create a lock tree. Should be called only inside DB->open.
......
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