aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator/beam/erl_db_util.h
diff options
context:
space:
mode:
authorMicael Karlberg <[email protected]>2011-03-07 13:23:00 +0100
committerMicael Karlberg <[email protected]>2011-03-07 13:23:00 +0100
commit0674fe5dfde78dd611ee17d97541c4f02fddf774 (patch)
treeef23074d46e14a2af8b983315986d97226aca419 /erts/emulator/beam/erl_db_util.h
parentd9ca1a4e66bed40b4bf4ed7b9e734192d6f6d00a (diff)
parent29a6063aadd2b3b81442a711ee262ff347ca88fc (diff)
downloadotp-0674fe5dfde78dd611ee17d97541c4f02fddf774.tar.gz
otp-0674fe5dfde78dd611ee17d97541c4f02fddf774.tar.bz2
otp-0674fe5dfde78dd611ee17d97541c4f02fddf774.zip
Merge branch 'dev' into bmk/snmp/snmpc/OTP-9004
Diffstat (limited to 'erts/emulator/beam/erl_db_util.h')
-rw-r--r--erts/emulator/beam/erl_db_util.h76
1 files changed, 40 insertions, 36 deletions
diff --git a/erts/emulator/beam/erl_db_util.h b/erts/emulator/beam/erl_db_util.h
index 10ba755e80..bb1751d309 100644
--- a/erts/emulator/beam/erl_db_util.h
+++ b/erts/emulator/beam/erl_db_util.h
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 1998-2010. All Rights Reserved.
+ * Copyright Ericsson AB 1998-2011. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
@@ -86,6 +86,9 @@ typedef struct {
Uint new_size;
int mustResize;
void* lck;
+#if HALFWORD_HEAP
+ unsigned char* abs_vec; /* [i] true if dbterm->tpl[i] is absolute Eterm */
+#endif
} DbUpdateHandle;
@@ -206,8 +209,7 @@ typedef struct db_fixation {
*/
typedef struct db_table_common {
- erts_refc_t ref;
- erts_refc_t fixref; /* fixation counter */
+ erts_refc_t ref; /* fixation counter and delete counter */
#ifdef ERTS_SMP
erts_smp_rwmtx_t rwlock; /* rw lock on table */
erts_smp_mtx_t fixlock; /* Protects fixations,megasec,sec,microsec */
@@ -253,10 +255,17 @@ typedef struct db_table_common {
(DB_BAG | DB_SET | DB_DUPLICATE_BAG)))
#define IS_TREE_TABLE(Status) (!!((Status) & \
DB_ORDERED_SET))
-#define NFIXED(T) (erts_refc_read(&(T)->common.fixref,0))
+#define NFIXED(T) (erts_refc_read(&(T)->common.ref,0))
#define IS_FIXED(T) (NFIXED(T) != 0)
-Eterm erts_ets_copy_object(Eterm, Process*);
+/*
+ * tplp is an untagged pointer to a tuple we know is large enough
+ * and dth is a pointer to a DbTableHash.
+ */
+#define GETKEY(dth, tplp) (*((tplp) + ((DbTableCommon*)(dth))->keypos))
+
+
+ERTS_GLB_INLINE Eterm db_copy_key(Process* p, DbTable* tb, DbTerm* obj);
Eterm db_copy_from_comp(DbTableCommon* tb, DbTerm* bp, Eterm** hpp,
ErlOffHeap* off_heap);
int db_eq_comp(DbTableCommon* tb, Eterm a, DbTerm* b);
@@ -265,9 +274,23 @@ DbTerm* db_alloc_tmp_uncompressed(DbTableCommon* tb, DbTerm* org);
ERTS_GLB_INLINE Eterm db_copy_object_from_ets(DbTableCommon* tb, DbTerm* bp,
Eterm** hpp, ErlOffHeap* off_heap);
ERTS_GLB_INLINE int db_eq(DbTableCommon* tb, Eterm a, DbTerm* b);
-ERTS_GLB_INLINE Eterm db_do_read_element(DbUpdateHandle* handle, Sint position);
+Wterm db_do_read_element(DbUpdateHandle* handle, Sint position);
#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE Eterm db_copy_key(Process* p, DbTable* tb, DbTerm* obj)
+{
+ Eterm key = GETKEY(tb, obj->tpl);
+ if IS_CONST(key) return key;
+ else {
+ Uint size = size_object_rel(key, obj->tpl);
+ Eterm* hp = HAlloc(p, size);
+ Eterm res = copy_struct_rel(key, size, &hp, &MSO(p), obj->tpl, NULL);
+ ASSERT(eq_rel(res,NULL,key,obj->tpl));
+ return res;
+ }
+}
+
ERTS_GLB_INLINE Eterm db_copy_object_from_ets(DbTableCommon* tb, DbTerm* bp,
Eterm** hpp, ErlOffHeap* off_heap)
{
@@ -275,49 +298,27 @@ ERTS_GLB_INLINE Eterm db_copy_object_from_ets(DbTableCommon* tb, DbTerm* bp,
return db_copy_from_comp(tb, bp, hpp, off_heap);
}
else {
- return copy_shallow(bp->tpl, bp->size, hpp, off_heap);
+ return copy_shallow_rel(bp->tpl, bp->size, hpp, off_heap, bp->tpl);
}
}
ERTS_GLB_INLINE int db_eq(DbTableCommon* tb, Eterm a, DbTerm* b)
{
if (!tb->compress) {
- return eq(a, make_tuple(b->tpl));
+ return eq_rel(a, NULL, make_tuple_rel(b->tpl,b->tpl), b->tpl);
}
else {
return db_eq_comp(tb, a, b);
}
}
-/* Must be called to read elements after db_lookup_dbterm.
-** Will decompress if needed. */
-ERTS_GLB_INLINE Eterm db_do_read_element(DbUpdateHandle* handle, Sint position)
-{
- Eterm elem = handle->dbterm->tpl[position];
- if (!is_header(elem)) {
- return elem;
- }
- ASSERT(((DbTableCommon*)handle->tb)->compress);
- ASSERT(!handle->mustResize);
- handle->dbterm = db_alloc_tmp_uncompressed((DbTableCommon*)handle->tb, handle->dbterm);
- handle->mustResize = 1;
- return handle->dbterm->tpl[position];
-}
-
#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
-/* optimised version of copy_object (normal case? atomic object) */
-#define COPY_OBJECT(obj, p, objp) \
- if (IS_CONST(obj)) { *(objp) = (obj); } \
- else { *objp = erts_ets_copy_object(obj, p); }
#define DB_READ (DB_PROTECTED|DB_PUBLIC)
#define DB_WRITE DB_PUBLIC
#define DB_INFO (DB_PROTECTED|DB_PUBLIC|DB_PRIVATE)
-/* tb is an DbTableCommon and obj is an Eterm (tagged) */
-#define TERM_GETKEY(tb, obj) db_getkey((tb)->common.keypos, (obj))
-
#define ONLY_WRITER(P,T) (((T)->common.status & (DB_PRIVATE|DB_PROTECTED)) \
&& (T)->common.owner == (P)->id)
@@ -338,12 +339,11 @@ Eterm db_copy_element_from_ets(DbTableCommon* tb, Process* p, DbTerm* obj,
Uint pos, Eterm** hpp, Uint extra);
int db_has_variable(Eterm obj);
int db_is_variable(Eterm obj);
-Eterm db_do_read_element(DbUpdateHandle* handle, Sint position);
void db_do_update_element(DbUpdateHandle* handle,
Sint position,
Eterm newval);
void db_finalize_resize(DbUpdateHandle* handle, Uint offset);
-Eterm db_add_counter(Eterm** hpp, Eterm counter, Eterm incr);
+Eterm db_add_counter(Eterm** hpp, Wterm counter, Eterm incr);
Eterm db_match_set_lint(Process *p, Eterm matchexpr, Uint flags);
Binary *db_match_set_compile(Process *p, Eterm matchexpr,
Uint flags);
@@ -360,7 +360,6 @@ typedef struct match_prog {
struct erl_heap_fragment *saved_program_buf;
Eterm saved_program;
Uint heap_size; /* size of: heap + eheap + stack */
- Uint eheap_offset;
Uint stack_offset;
#ifdef DMC_DEBUG
UWord* prog_end; /* End of program */
@@ -424,11 +423,16 @@ Binary *db_match_compile(Eterm *matchexpr, Eterm *guards,
Eterm *body, int num_matches,
Uint flags,
DMCErrInfo *err_info);
-Eterm db_prog_match_and_copy(DbTableCommon* tb, Process* c_p, Binary* bprog,
- int all, DbTerm* obj, Eterm** hpp, Uint extra);
/* Returns newly allocated MatchProg binary with refc == 0*/
-Eterm db_prog_match(Process *p, Binary *prog, Eterm term, Eterm *termp, int arity,
+
+Eterm db_match_dbterm(DbTableCommon* tb, Process* c_p, Binary* bprog,
+ int all, DbTerm* obj, Eterm** hpp, Uint extra);
+
+Eterm db_prog_match(Process *p, Binary *prog, Eterm term, Eterm* base,
+ Eterm *termp, int arity,
+ enum erts_pam_run_flags in_flags,
Uint32 *return_flags /* Zeroed on enter */);
+
/* returns DB_ERROR_NONE if matches, 1 if not matches and some db error on
error. */
DMCErrInfo *db_new_dmc_err_info(void);