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-rw-r--r--erts/emulator/beam/erl_db_hash.c323
1 files changed, 142 insertions, 181 deletions
diff --git a/erts/emulator/beam/erl_db_hash.c b/erts/emulator/beam/erl_db_hash.c
index 426c7d2d48..a2690f6d6a 100644
--- a/erts/emulator/beam/erl_db_hash.c
+++ b/erts/emulator/beam/erl_db_hash.c
@@ -1154,8 +1154,9 @@ static int db_slot_hash(Process *p, DbTable *tbl, Eterm slot_term, Eterm *ret)
* Match traversal callbacks
*/
-typedef struct match_callbacks_t_ match_callbacks_t;
-struct match_callbacks_t_
+
+typedef struct traverse_context_t_ traverse_context_t;
+struct traverse_context_t_
{
/* Called when no match is possible.
* context_ptr: Pointer to context
@@ -1163,7 +1164,7 @@ struct match_callbacks_t_
*
* Both the direct return value and 'ret' are used as the traversal function return values.
*/
- int (*on_nothing_can_match)(match_callbacks_t* ctx, Eterm* ret);
+ int (*on_nothing_can_match)(traverse_context_t* ctx, Eterm* ret);
/* Called for each match result.
* context_ptr: Pointer to context
@@ -1174,7 +1175,7 @@ struct match_callbacks_t_
*
* Should return 1 for successful match, 0 otherwise.
*/
- int (*on_match_res)(match_callbacks_t* ctx, Sint slot_ix,
+ int (*on_match_res)(traverse_context_t* ctx, Sint slot_ix,
HashDbTerm*** current_ptr_ptr, Eterm match_res);
/* Called when either we've matched enough elements in this cycle or EOT was reached.
@@ -1188,7 +1189,7 @@ struct match_callbacks_t_
* Both the direct return value and 'ret' are used as the traversal function return values.
* If *mpp is set to NULL, it won't be deallocated (useful for trapping.)
*/
- int (*on_loop_ended)(match_callbacks_t* ctx, Sint slot_ix, Sint got,
+ int (*on_loop_ended)(traverse_context_t* ctx, Sint slot_ix, Sint got,
Sint iterations_left, Binary** mpp, Eterm* ret);
/* Called when it's time to trap
@@ -1201,16 +1202,20 @@ struct match_callbacks_t_
* Both the direct return value and 'ret' are used as the traversal function return values.
* If *mpp is set to NULL, it won't be deallocated (useful for trapping.)
*/
- int (*on_trap)(match_callbacks_t* ctx, Sint slot_ix, Sint got, Binary** mpp,
+ int (*on_trap)(traverse_context_t* ctx, Sint slot_ix, Sint got, Binary** mpp,
Eterm* ret);
+ Process* p;
+ DbTableHash* tb;
+ Eterm tid;
+ Eterm* prev_continuation_tptr;
};
/*
* Begin hash table match traversal
*/
-static int match_traverse(Process* p, DbTableHash* tb,
+static int match_traverse(traverse_context_t* ctx,
Eterm pattern,
extra_match_validator_t extra_match_validator, /* Optional */
Sint chunk_size, /* If 0, no chunking */
@@ -1218,9 +1223,9 @@ static int match_traverse(Process* p, DbTableHash* tb,
Eterm** hpp, /* Heap */
int lock_for_write, /* Set to 1 if we're going to delete or
modify existing terms */
- match_callbacks_t* ctx,
Eterm* ret)
{
+ DbTableHash* tb = ctx->tb;
Sint slot_ix; /* Slot index */
HashDbTerm** current_ptr; /* Refers to either the bucket pointer or
* the 'next' pointer in the previous term
@@ -1287,7 +1292,7 @@ static int match_traverse(Process* p, DbTableHash* tb,
for(;;) {
if (*current_ptr != NULL) {
if (!is_pseudo_deleted(*current_ptr)) {
- match_res = db_match_dbterm(&tb->common, p, mpi.mp,
+ match_res = db_match_dbterm(&tb->common, ctx->p, mpi.mp,
&(*current_ptr)->dbterm, hpp, 2);
saved_current = *current_ptr;
if (ctx->on_match_res(ctx, slot_ix, &current_ptr, match_res)) {
@@ -1352,7 +1357,7 @@ done:
/*
* Continue hash table match traversal
*/
-static int match_traverse_continue(Process* p, DbTableHash* tb,
+static int match_traverse_continue(traverse_context_t* ctx,
Sint chunk_size, /* If 0, no chunking */
Sint iterations_left, /* Nr. of iterations left */
Eterm** hpp, /* Heap */
@@ -1361,9 +1366,9 @@ static int match_traverse_continue(Process* p, DbTableHash* tb,
Binary** mpp, /* Existing match program */
int lock_for_write, /* Set to 1 if we're going to delete or
modify existing terms */
- match_callbacks_t* ctx,
Eterm* ret)
{
+ DbTableHash* tb = ctx->tb;
HashDbTerm** current_ptr; /* Refers to either the bucket pointer or
* the 'next' pointer in the previous term
*/
@@ -1406,7 +1411,7 @@ static int match_traverse_continue(Process* p, DbTableHash* tb,
for(;;) {
if (*current_ptr != NULL) {
if (!is_pseudo_deleted(*current_ptr)) {
- match_res = db_match_dbterm(&tb->common, p, *mpp,
+ match_res = db_match_dbterm(&tb->common, ctx->p, *mpp,
&(*current_ptr)->dbterm, hpp, 2);
saved_current = *current_ptr;
if (ctx->on_match_res(ctx, slot_ix, &current_ptr, match_res)) {
@@ -1456,52 +1461,49 @@ done:
*/
static ERTS_INLINE int on_simple_trap(Export* trap_function,
- Process* p,
- DbTableHash* tb,
- Eterm tid,
- Eterm* prev_continuation_tptr,
- Sint slot_ix,
- Sint got,
- Binary** mpp,
- Eterm* ret)
+ traverse_context_t* ctx,
+ Sint slot_ix,
+ Sint got,
+ Binary** mpp,
+ Eterm* ret)
{
Eterm* hp;
Eterm egot;
Eterm mpb;
Eterm continuation;
- int is_first_trap = (prev_continuation_tptr == NULL);
+ int is_first_trap = (ctx->prev_continuation_tptr == NULL);
size_t base_halloc_sz = (is_first_trap ? ERTS_MAGIC_REF_THING_SIZE : 0);
- BUMP_ALL_REDS(p);
+ BUMP_ALL_REDS(ctx->p);
if (IS_USMALL(0, got)) {
- hp = HAllocX(p, base_halloc_sz + 5, ERTS_MAGIC_REF_THING_SIZE);
+ hp = HAllocX(ctx->p, base_halloc_sz + 5, ERTS_MAGIC_REF_THING_SIZE);
egot = make_small(got);
}
else {
- hp = HAllocX(p, base_halloc_sz + BIG_UINT_HEAP_SIZE + 5,
+ hp = HAllocX(ctx->p, base_halloc_sz + BIG_UINT_HEAP_SIZE + 5,
ERTS_MAGIC_REF_THING_SIZE);
egot = uint_to_big(got, hp);
hp += BIG_UINT_HEAP_SIZE;
}
if (is_first_trap) {
- if (is_atom(tid))
- tid = erts_db_make_tid(p, &tb->common);
- mpb = erts_db_make_match_prog_ref(p, *mpp, &hp);
+ if (is_atom(ctx->tid))
+ ctx->tid = erts_db_make_tid(ctx->p, &ctx->tb->common);
+ mpb = erts_db_make_match_prog_ref(ctx->p, *mpp, &hp);
*mpp = NULL; /* otherwise the caller will destroy it */
}
else {
- ASSERT(!is_atom(tid));
- mpb = prev_continuation_tptr[3];
+ ASSERT(!is_atom(ctx->tid));
+ mpb = ctx->prev_continuation_tptr[3];
}
continuation = TUPLE4(
hp,
- tid,
+ ctx->tid,
make_small(slot_ix),
mpb,
egot);
- ERTS_BIF_PREP_TRAP1(*ret, trap_function, p, continuation);
+ ERTS_BIF_PREP_TRAP1(*ret, trap_function, ctx->p, continuation);
return DB_ERROR_NONE;
}
@@ -1545,24 +1547,20 @@ static ERTS_INLINE int unpack_simple_continuation(Eterm continuation,
#define MAX_SELECT_CHUNK_ITERATIONS 1000
typedef struct {
- match_callbacks_t base;
- Process* p;
- DbTableHash* tb;
- Eterm tid;
+ traverse_context_t base;
Eterm* hp;
Sint chunk_size;
Eterm match_list;
- Eterm* prev_continuation_tptr;
} select_chunk_context_t;
-static int select_chunk_on_nothing_can_match(match_callbacks_t* ctx_base, Eterm* ret)
+static int select_chunk_on_nothing_can_match(traverse_context_t* ctx_base, Eterm* ret)
{
select_chunk_context_t* ctx = (select_chunk_context_t*) ctx_base;
*ret = (ctx->chunk_size > 0 ? am_EOT : NIL);
return DB_ERROR_NONE;
}
-static int select_chunk_on_match_res(match_callbacks_t* ctx_base, Sint slot_ix,
+static int select_chunk_on_match_res(traverse_context_t* ctx_base, Sint slot_ix,
HashDbTerm*** current_ptr_ptr,
Eterm match_res)
{
@@ -1574,7 +1572,7 @@ static int select_chunk_on_match_res(match_callbacks_t* ctx_base, Sint slot_ix,
return 0;
}
-static int select_chunk_on_loop_ended(match_callbacks_t* ctx_base,
+static int select_chunk_on_loop_ended(traverse_context_t* ctx_base,
Sint slot_ix, Sint got,
Sint iterations_left, Binary** mpp,
Eterm* ret)
@@ -1590,7 +1588,7 @@ static int select_chunk_on_loop_ended(match_callbacks_t* ctx_base,
}
else {
ASSERT(iterations_left < MAX_SELECT_CHUNK_ITERATIONS);
- BUMP_REDS(ctx->p, MAX_SELECT_CHUNK_ITERATIONS - iterations_left);
+ BUMP_REDS(ctx->base.p, MAX_SELECT_CHUNK_ITERATIONS - iterations_left);
if (ctx->chunk_size) {
Eterm continuation;
Eterm rest = NIL;
@@ -1609,14 +1607,14 @@ static int select_chunk_on_loop_ended(match_callbacks_t* ctx_base,
been in 'user space' */
}
if (rest != NIL || slot_ix >= 0) { /* Need more calls */
- Eterm tid = ctx->tid;
- ctx->hp = HAllocX(ctx->p,
+ Eterm tid = ctx->base.tid;
+ ctx->hp = HAllocX(ctx->base.p,
3 + 7 + ERTS_MAGIC_REF_THING_SIZE,
ERTS_MAGIC_REF_THING_SIZE);
- mpb = erts_db_make_match_prog_ref(ctx->p, *mpp, &ctx->hp);
+ mpb = erts_db_make_match_prog_ref(ctx->base.p, *mpp, &ctx->hp);
if (is_atom(tid))
- tid = erts_db_make_tid(ctx->p,
- &ctx->tb->common);
+ tid = erts_db_make_tid(ctx->base.p,
+ &ctx->base.tb->common);
continuation = TUPLE6(
ctx->hp,
tid,
@@ -1631,7 +1629,7 @@ static int select_chunk_on_loop_ended(match_callbacks_t* ctx_base,
} else { /* All data is exhausted */
if (ctx->match_list != NIL) { /* No more data to search but still a
result to return to the caller */
- ctx->hp = HAlloc(ctx->p, 3);
+ ctx->hp = HAlloc(ctx->base.p, 3);
*ret = TUPLE2(ctx->hp, ctx->match_list, am_EOT);
return DB_ERROR_NONE;
} else { /* Reached the end of the ttable with no data to return */
@@ -1645,7 +1643,7 @@ static int select_chunk_on_loop_ended(match_callbacks_t* ctx_base,
}
}
-static int select_chunk_on_trap(match_callbacks_t* ctx_base,
+static int select_chunk_on_trap(traverse_context_t* ctx_base,
Sint slot_ix, Sint got,
Binary** mpp, Eterm* ret)
{
@@ -1654,16 +1652,16 @@ static int select_chunk_on_trap(match_callbacks_t* ctx_base,
Eterm continuation;
Eterm* hp;
- BUMP_ALL_REDS(ctx->p);
+ BUMP_ALL_REDS(ctx->base.p);
- if (ctx->prev_continuation_tptr == NULL) {
- Eterm tid = ctx->tid;
+ if (ctx->base.prev_continuation_tptr == NULL) {
+ Eterm tid = ctx->base.tid;
/* First time we're trapping */
- hp = HAllocX(ctx->p, 7 + ERTS_MAGIC_REF_THING_SIZE,
+ hp = HAllocX(ctx->base.p, 7 + ERTS_MAGIC_REF_THING_SIZE,
ERTS_MAGIC_REF_THING_SIZE);
if (is_atom(tid))
- tid = erts_db_make_tid(ctx->p, &ctx->tb->common);
- mpb = erts_db_make_match_prog_ref(ctx->p, *mpp, &hp);
+ tid = erts_db_make_tid(ctx->base.p, &ctx->base.tb->common);
+ mpb = erts_db_make_match_prog_ref(ctx->base.p, *mpp, &hp);
continuation = TUPLE6(
hp,
tid,
@@ -1676,17 +1674,17 @@ static int select_chunk_on_trap(match_callbacks_t* ctx_base,
}
else {
/* Not the first time we're trapping; reuse continuation terms */
- hp = HAlloc(ctx->p, 7);
+ hp = HAlloc(ctx->base.p, 7);
continuation = TUPLE6(
hp,
- ctx->prev_continuation_tptr[1],
+ ctx->base.prev_continuation_tptr[1],
make_small(slot_ix),
- ctx->prev_continuation_tptr[3],
- ctx->prev_continuation_tptr[4],
+ ctx->base.prev_continuation_tptr[3],
+ ctx->base.prev_continuation_tptr[4],
ctx->match_list,
make_small(got));
}
- ERTS_BIF_PREP_TRAP1(*ret, &ets_select_continue_exp, ctx->p,
+ ERTS_BIF_PREP_TRAP1(*ret, &ets_select_continue_exp, ctx->base.p,
continuation);
return DB_ERROR_NONE;
}
@@ -1706,22 +1704,22 @@ static int db_select_chunk_hash(Process *p, DbTable *tbl, Eterm tid,
ctx.base.on_nothing_can_match = select_chunk_on_nothing_can_match;
ctx.base.on_match_res = select_chunk_on_match_res;
ctx.base.on_loop_ended = select_chunk_on_loop_ended;
- ctx.base.on_trap = select_chunk_on_trap,
- ctx.p = p;
- ctx.tb = &tbl->hash;
- ctx.tid = tid;
+ ctx.base.on_trap = select_chunk_on_trap;
+ ctx.base.p = p;
+ ctx.base.tb = &tbl->hash;
+ ctx.base.tid = tid;
+ ctx.base.prev_continuation_tptr = NULL;
ctx.hp = NULL;
ctx.chunk_size = chunk_size;
ctx.match_list = NIL;
- ctx.prev_continuation_tptr = NULL;
return match_traverse(
- ctx.p, ctx.tb,
+ &ctx.base,
pattern, NULL,
ctx.chunk_size,
MAX_SELECT_CHUNK_ITERATIONS,
&ctx.hp, 0,
- &ctx.base, ret);
+ ret);
}
/*
@@ -1731,7 +1729,7 @@ static int db_select_chunk_hash(Process *p, DbTable *tbl, Eterm tid,
*/
static
-int select_chunk_continue_on_loop_ended(match_callbacks_t* ctx_base,
+int select_chunk_continue_on_loop_ended(traverse_context_t* ctx_base,
Sint slot_ix, Sint got,
Sint iterations_left, Binary** mpp,
Eterm* ret)
@@ -1742,14 +1740,14 @@ int select_chunk_continue_on_loop_ended(match_callbacks_t* ctx_base,
Eterm* hp;
ASSERT(iterations_left <= MAX_SELECT_CHUNK_ITERATIONS);
- BUMP_REDS(ctx->p, MAX_SELECT_CHUNK_ITERATIONS - iterations_left);
+ BUMP_REDS(ctx->base.p, MAX_SELECT_CHUNK_ITERATIONS - iterations_left);
if (ctx->chunk_size) {
Sint rest_size = 0;
if (got > ctx->chunk_size) {
/* Cannot write destructively here,
the list may have
been in user space */
- hp = HAlloc(ctx->p, (got - ctx->chunk_size) * 2);
+ hp = HAlloc(ctx->base.p, (got - ctx->chunk_size) * 2);
while (got-- > ctx->chunk_size) {
rest = CONS(hp, CAR(list_val(ctx->match_list)), rest);
hp += 2;
@@ -1758,13 +1756,13 @@ int select_chunk_continue_on_loop_ended(match_callbacks_t* ctx_base,
}
}
if (rest != NIL || slot_ix >= 0) {
- hp = HAlloc(ctx->p, 3 + 7);
+ hp = HAlloc(ctx->base.p, 3 + 7);
continuation = TUPLE6(
hp,
- ctx->prev_continuation_tptr[1],
+ ctx->base.prev_continuation_tptr[1],
make_small(slot_ix),
- ctx->prev_continuation_tptr[3],
- ctx->prev_continuation_tptr[4],
+ ctx->base.prev_continuation_tptr[3],
+ ctx->base.prev_continuation_tptr[4],
rest,
make_small(rest_size));
hp += 7;
@@ -1772,7 +1770,7 @@ int select_chunk_continue_on_loop_ended(match_callbacks_t* ctx_base,
return DB_ERROR_NONE;
} else {
if (ctx->match_list != NIL) {
- hp = HAlloc(ctx->p, 3);
+ hp = HAlloc(ctx->base.p, 3);
*ret = TUPLE2(hp, ctx->match_list, am_EOT);
return DB_ERROR_NONE;
} else {
@@ -1829,18 +1827,18 @@ static int db_select_continue_hash(Process* p, DbTable* tbl, Eterm continuation,
ctx.base.on_match_res = select_chunk_on_match_res;
ctx.base.on_loop_ended = select_chunk_continue_on_loop_ended;
ctx.base.on_trap = select_chunk_on_trap;
- ctx.p = p;
- ctx.tb = &tbl->hash;
- ctx.tid = tid;
+ ctx.base.p = p;
+ ctx.base.tb = &tbl->hash;
+ ctx.base.tid = tid;
+ ctx.base.prev_continuation_tptr = tptr;
ctx.hp = NULL;
ctx.chunk_size = chunk_size;
ctx.match_list = match_list;
- ctx.prev_continuation_tptr = tptr;
return match_traverse_continue(
- ctx.p, ctx.tb, ctx.chunk_size,
- iterations_left, &ctx.hp, slot_ix, got, &mp, 0,
- &ctx.base, ret);
+ &ctx.base, ctx.chunk_size,
+ iterations_left, &ctx.hp, slot_ix, got, &mp, 0,
+ ret);
badparam:
*ret = NIL;
@@ -1858,75 +1856,61 @@ badparam:
#define MAX_SELECT_COUNT_ITERATIONS 1000
-typedef struct {
- match_callbacks_t base;
- Process* p;
- DbTableHash* tb;
- Eterm tid;
- Eterm* prev_continuation_tptr;
-} select_count_context_t;
-
-static int select_count_on_nothing_can_match(match_callbacks_t* ctx_base,
+static int select_count_on_nothing_can_match(traverse_context_t* ctx_base,
Eterm* ret)
{
*ret = make_small(0);
return DB_ERROR_NONE;
}
-static int select_count_on_match_res(match_callbacks_t* ctx_base, Sint slot_ix,
+static int select_count_on_match_res(traverse_context_t* ctx_base, Sint slot_ix,
HashDbTerm*** current_ptr_ptr,
Eterm match_res)
{
return (match_res == am_true);
}
-static int select_count_on_loop_ended(match_callbacks_t* ctx_base,
+static int select_count_on_loop_ended(traverse_context_t* ctx,
Sint slot_ix, Sint got,
Sint iterations_left, Binary** mpp,
Eterm* ret)
{
- select_count_context_t* ctx = (select_count_context_t*) ctx_base;
ASSERT(iterations_left <= MAX_SELECT_COUNT_ITERATIONS);
BUMP_REDS(ctx->p, MAX_SELECT_COUNT_ITERATIONS - iterations_left);
*ret = erts_make_integer(got, ctx->p);
return DB_ERROR_NONE;
}
-static int select_count_on_trap(match_callbacks_t* ctx_base,
+static int select_count_on_trap(traverse_context_t* ctx,
Sint slot_ix, Sint got,
Binary** mpp, Eterm* ret)
{
- select_count_context_t* ctx = (select_count_context_t*) ctx_base;
return on_simple_trap(
- &ets_select_count_continue_exp,
- ctx->p,
- ctx->tb,
- ctx->tid,
- ctx->prev_continuation_tptr,
+ &ets_select_count_continue_exp, ctx,
slot_ix, got, mpp, ret);
}
static int db_select_count_hash(Process *p, DbTable *tbl, Eterm tid,
Eterm pattern, Eterm *ret)
{
- select_count_context_t ctx;
+ traverse_context_t ctx;
Sint iterations_left = MAX_SELECT_COUNT_ITERATIONS;
Sint chunk_size = 0;
- ctx.base.on_nothing_can_match = select_count_on_nothing_can_match;
- ctx.base.on_match_res = select_count_on_match_res;
- ctx.base.on_loop_ended = select_count_on_loop_ended;
- ctx.base.on_trap = select_count_on_trap;
+ ctx.on_nothing_can_match = select_count_on_nothing_can_match;
+ ctx.on_match_res = select_count_on_match_res;
+ ctx.on_loop_ended = select_count_on_loop_ended;
+ ctx.on_trap = select_count_on_trap;
ctx.p = p;
ctx.tb = &tbl->hash;
ctx.tid = tid;
ctx.prev_continuation_tptr = NULL;
return match_traverse(
- ctx.p, ctx.tb,
+ &ctx,
pattern, NULL,
chunk_size, iterations_left, NULL, 0,
- &ctx.base, ret);
+ ret);
}
/*
@@ -1935,7 +1919,7 @@ static int db_select_count_hash(Process *p, DbTable *tbl, Eterm tid,
static int db_select_count_continue_hash(Process* p, DbTable* tbl,
Eterm continuation, Eterm* ret)
{
- select_count_context_t ctx;
+ traverse_context_t ctx;
Eterm* tptr;
Eterm tid;
Binary* mp;
@@ -1949,19 +1933,19 @@ static int db_select_count_continue_hash(Process* p, DbTable* tbl,
return DB_ERROR_BADPARAM;
}
- ctx.base.on_match_res = select_count_on_match_res;
- ctx.base.on_loop_ended = select_count_on_loop_ended;
- ctx.base.on_trap = select_count_on_trap;
+ ctx.on_match_res = select_count_on_match_res;
+ ctx.on_loop_ended = select_count_on_loop_ended;
+ ctx.on_trap = select_count_on_trap;
ctx.p = p;
ctx.tb = &tbl->hash;
ctx.tid = tid;
ctx.prev_continuation_tptr = tptr;
return match_traverse_continue(
- ctx.p, ctx.tb, chunk_size,
+ &ctx, chunk_size,
MAX_SELECT_COUNT_ITERATIONS,
NULL, slot_ix, got, &mp, 0,
- &ctx.base, ret);
+ ret);
}
#undef MAX_SELECT_COUNT_ITERATIONS
@@ -1976,24 +1960,20 @@ static int db_select_count_continue_hash(Process* p, DbTable* tbl,
#define MAX_SELECT_DELETE_ITERATIONS 1000
typedef struct {
- match_callbacks_t base;
- Process* p;
- DbTableHash* tb;
- Eterm tid;
- Eterm* prev_continuation_tptr;
+ traverse_context_t base;
erts_aint_t fixated_by_me;
Uint last_pseudo_delete;
HashDbTerm* free_us;
} select_delete_context_t;
-static int select_delete_on_nothing_can_match(match_callbacks_t* ctx_base,
+static int select_delete_on_nothing_can_match(traverse_context_t* ctx_base,
Eterm* ret)
{
*ret = make_small(0);
return DB_ERROR_NONE;
}
-static int select_delete_on_match_res(match_callbacks_t* ctx_base, Sint slot_ix,
+static int select_delete_on_match_res(traverse_context_t* ctx_base, Sint slot_ix,
HashDbTerm*** current_ptr_ptr,
Eterm match_res)
{
@@ -2003,9 +1983,9 @@ static int select_delete_on_match_res(match_callbacks_t* ctx_base, Sint slot_ix,
if (match_res != am_true)
return 0;
- if (NFIXED(ctx->tb) > ctx->fixated_by_me) { /* fixated by others? */
+ if (NFIXED(ctx->base.tb) > ctx->fixated_by_me) { /* fixated by others? */
if (slot_ix != ctx->last_pseudo_delete) {
- if (!add_fixed_deletion(ctx->tb, slot_ix, ctx->fixated_by_me))
+ if (!add_fixed_deletion(ctx->base.tb, slot_ix, ctx->fixated_by_me))
goto do_erase;
ctx->last_pseudo_delete = slot_ix;
}
@@ -2018,41 +1998,37 @@ static int select_delete_on_match_res(match_callbacks_t* ctx_base, Sint slot_ix,
del->next = ctx->free_us;
ctx->free_us = del;
}
- erts_atomic_dec_nob(&ctx->tb->common.nitems);
+ erts_atomic_dec_nob(&ctx->base.tb->common.nitems);
return 1;
}
-static int select_delete_on_loop_ended(match_callbacks_t* ctx_base,
+static int select_delete_on_loop_ended(traverse_context_t* ctx_base,
Sint slot_ix, Sint got,
Sint iterations_left, Binary** mpp,
Eterm* ret)
{
select_delete_context_t* ctx = (select_delete_context_t*) ctx_base;
- free_term_list(ctx->tb, ctx->free_us);
+ free_term_list(ctx->base.tb, ctx->free_us);
ctx->free_us = NULL;
ASSERT(iterations_left <= MAX_SELECT_DELETE_ITERATIONS);
- BUMP_REDS(ctx->p, MAX_SELECT_DELETE_ITERATIONS - iterations_left);
+ BUMP_REDS(ctx->base.p, MAX_SELECT_DELETE_ITERATIONS - iterations_left);
if (got) {
- try_shrink(ctx->tb);
+ try_shrink(ctx->base.tb);
}
- *ret = erts_make_integer(got, ctx->p);
+ *ret = erts_make_integer(got, ctx->base.p);
return DB_ERROR_NONE;
}
-static int select_delete_on_trap(match_callbacks_t* ctx_base,
+static int select_delete_on_trap(traverse_context_t* ctx_base,
Sint slot_ix, Sint got,
Binary** mpp, Eterm* ret)
{
select_delete_context_t* ctx = (select_delete_context_t*) ctx_base;
- free_term_list(ctx->tb, ctx->free_us);
+ free_term_list(ctx->base.tb, ctx->free_us);
ctx->free_us = NULL;
return on_simple_trap(
- &ets_select_delete_continue_exp,
- ctx->p,
- ctx->tb,
- ctx->tid,
- ctx->prev_continuation_tptr,
+ &ets_select_delete_continue_exp, &ctx->base,
slot_ix, got, mpp, ret);
}
@@ -2066,20 +2042,20 @@ static int db_select_delete_hash(Process *p, DbTable *tbl, Eterm tid,
ctx.base.on_match_res = select_delete_on_match_res;
ctx.base.on_loop_ended = select_delete_on_loop_ended;
ctx.base.on_trap = select_delete_on_trap;
- ctx.p = p;
- ctx.tb = &tbl->hash;
- ctx.tid = tid;
- ctx.prev_continuation_tptr = NULL;
- ctx.fixated_by_me = ctx.tb->common.is_thread_safe ? 0 : 1; /* TODO: something nicer */
+ ctx.base.p = p;
+ ctx.base.tb = &tbl->hash;
+ ctx.base.tid = tid;
+ ctx.base.prev_continuation_tptr = NULL;
+ ctx.fixated_by_me = ctx.base.tb->common.is_thread_safe ? 0 : 1;
ctx.last_pseudo_delete = (Uint) -1;
ctx.free_us = NULL;
return match_traverse(
- ctx.p, ctx.tb,
+ &ctx.base,
pattern, NULL,
chunk_size,
MAX_SELECT_DELETE_ITERATIONS, NULL, 1,
- &ctx.base, ret);
+ ret);
}
/*
@@ -2104,19 +2080,19 @@ static int db_select_delete_continue_hash(Process* p, DbTable* tbl,
ctx.base.on_match_res = select_delete_on_match_res;
ctx.base.on_loop_ended = select_delete_on_loop_ended;
ctx.base.on_trap = select_delete_on_trap;
- ctx.p = p;
- ctx.tb = &tbl->hash;
- ctx.tid = tid;
- ctx.prev_continuation_tptr = tptr;
- ctx.fixated_by_me = ONLY_WRITER(p, ctx.tb) ? 0 : 1; /* TODO: something nicer */
+ ctx.base.p = p;
+ ctx.base.tb = &tbl->hash;
+ ctx.base.tid = tid;
+ ctx.base.prev_continuation_tptr = tptr;
+ ctx.fixated_by_me = ONLY_WRITER(p, ctx.base.tb) ? 0 : 1;
ctx.last_pseudo_delete = (Uint) -1;
ctx.free_us = NULL;
return match_traverse_continue(
- ctx.p, ctx.tb, chunk_size,
+ &ctx.base, chunk_size,
MAX_SELECT_DELETE_ITERATIONS,
NULL, slot_ix, got, &mp, 1,
- &ctx.base, ret);
+ ret);
}
#undef MAX_SELECT_DELETE_ITERATIONS
@@ -2130,26 +2106,17 @@ static int db_select_delete_continue_hash(Process* p, DbTable* tbl,
#define MAX_SELECT_REPLACE_ITERATIONS 1000
-typedef struct {
- match_callbacks_t base;
- Process* p;
- DbTableHash* tb;
- Eterm tid;
- Eterm* prev_continuation_tptr;
-} select_replace_context_t;
-
-static int select_replace_on_nothing_can_match(match_callbacks_t* ctx_base,
+static int select_replace_on_nothing_can_match(traverse_context_t* ctx_base,
Eterm* ret)
{
*ret = make_small(0);
return DB_ERROR_NONE;
}
-static int select_replace_on_match_res(match_callbacks_t* ctx_base, Sint slot_ix,
+static int select_replace_on_match_res(traverse_context_t* ctx, Sint slot_ix,
HashDbTerm*** current_ptr_ptr,
Eterm match_res)
{
- select_replace_context_t* ctx = (select_replace_context_t*) ctx_base;
DbTableHash* tb = ctx->tb;
HashDbTerm* new;
HashDbTerm* next;
@@ -2175,11 +2142,10 @@ static int select_replace_on_match_res(match_callbacks_t* ctx_base, Sint slot_ix
return 0;
}
-static int select_replace_on_loop_ended(match_callbacks_t* ctx_base, Sint slot_ix,
+static int select_replace_on_loop_ended(traverse_context_t* ctx, Sint slot_ix,
Sint got, Sint iterations_left,
Binary** mpp, Eterm* ret)
{
- select_replace_context_t* ctx = (select_replace_context_t*) ctx_base;
ASSERT(iterations_left <= MAX_SELECT_REPLACE_ITERATIONS);
/* the more objects we've replaced, the more reductions we've consumed */
BUMP_REDS(ctx->p,
@@ -2189,23 +2155,18 @@ static int select_replace_on_loop_ended(match_callbacks_t* ctx_base, Sint slot_i
return DB_ERROR_NONE;
}
-static int select_replace_on_trap(match_callbacks_t* ctx_base,
+static int select_replace_on_trap(traverse_context_t* ctx,
Sint slot_ix, Sint got,
Binary** mpp, Eterm* ret)
{
- select_replace_context_t* ctx = (select_replace_context_t*) ctx_base;
return on_simple_trap(
- &ets_select_replace_continue_exp,
- ctx->p,
- ctx->tb,
- ctx->tid,
- ctx->prev_continuation_tptr,
+ &ets_select_replace_continue_exp, ctx,
slot_ix, got, mpp, ret);
}
static int db_select_replace_hash(Process *p, DbTable *tbl, Eterm tid, Eterm pattern, Eterm *ret)
{
- select_replace_context_t ctx;
+ traverse_context_t ctx;
Sint chunk_size = 0;
/* Bag implementation presented both semantic consistency and performance issues,
@@ -2213,21 +2174,21 @@ static int db_select_replace_hash(Process *p, DbTable *tbl, Eterm tid, Eterm pat
*/
ASSERT(!(tbl->hash.common.status & DB_BAG));
- ctx.base.on_nothing_can_match = select_replace_on_nothing_can_match;
- ctx.base.on_match_res = select_replace_on_match_res;
- ctx.base.on_loop_ended = select_replace_on_loop_ended;
- ctx.base.on_trap = select_replace_on_trap;
+ ctx.on_nothing_can_match = select_replace_on_nothing_can_match;
+ ctx.on_match_res = select_replace_on_match_res;
+ ctx.on_loop_ended = select_replace_on_loop_ended;
+ ctx.on_trap = select_replace_on_trap;
ctx.p = p;
ctx.tb = &tbl->hash;
ctx.tid = tid;
ctx.prev_continuation_tptr = NULL;
return match_traverse(
- ctx.p, ctx.tb,
+ &ctx,
pattern, db_match_keeps_key,
chunk_size,
MAX_SELECT_REPLACE_ITERATIONS, NULL, 1,
- &ctx.base, ret);
+ ret);
}
/*
@@ -2235,7 +2196,7 @@ static int db_select_replace_hash(Process *p, DbTable *tbl, Eterm tid, Eterm pat
*/
static int db_select_replace_continue_hash(Process* p, DbTable* tbl, Eterm continuation, Eterm* ret)
{
- select_replace_context_t ctx;
+ traverse_context_t ctx;
Eterm* tptr;
Eterm tid ;
Binary* mp;
@@ -2250,19 +2211,19 @@ static int db_select_replace_continue_hash(Process* p, DbTable* tbl, Eterm conti
}
/* Proceed */
- ctx.base.on_match_res = select_replace_on_match_res;
- ctx.base.on_loop_ended = select_replace_on_loop_ended;
- ctx.base.on_trap = select_replace_on_trap;
+ ctx.on_match_res = select_replace_on_match_res;
+ ctx.on_loop_ended = select_replace_on_loop_ended;
+ ctx.on_trap = select_replace_on_trap;
ctx.p = p;
ctx.tb = &tbl->hash;
ctx.tid = tid;
ctx.prev_continuation_tptr = tptr;
return match_traverse_continue(
- ctx.p, ctx.tb, chunk_size,
+ &ctx, chunk_size,
MAX_SELECT_REPLACE_ITERATIONS,
NULL, slot_ix, got, &mp, 1,
- &ctx.base, ret);
+ ret);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-30 07:32:19 +0000