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authorGuilherme Andrade <[email protected]>2017-04-20 21:35:54 +0100
committerGuilherme Andrade <[email protected]>2017-04-20 21:51:16 +0100
commit1b37d0b010ea31b04b9d0a15d0bec9c75a013dc9 (patch)
treea543b013c074d8e763a31e0adf706f7cf922176a /erts/emulator/beam
parent0835f40ae25f97360dc393928796387d3cd6b16e (diff)
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erts: Remove enif_phash2_ranged
Diffstat (limited to 'erts/emulator/beam')
-rw-r--r--erts/emulator/beam/bif.c17
-rw-r--r--erts/emulator/beam/erl_nif.c14
-rw-r--r--erts/emulator/beam/erl_nif_api_funcs.h2
-rw-r--r--erts/emulator/beam/erl_utils.h1
-rw-r--r--erts/emulator/beam/utils.c10
5 files changed, 13 insertions, 31 deletions
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c
index d59adc18d6..214de3652f 100644
--- a/erts/emulator/beam/bif.c
+++ b/erts/emulator/beam/bif.c
@@ -4888,6 +4888,7 @@ BIF_RETTYPE phash2_1(BIF_ALIST_1)
BIF_RETTYPE phash2_2(BIF_ALIST_2)
{
Uint32 hash;
+ Uint32 final_hash;
Uint32 range;
/* Check for special case 2^32 */
@@ -4900,19 +4901,23 @@ BIF_RETTYPE phash2_2(BIF_ALIST_2)
}
range = (Uint32) u;
}
- hash = make_hash2_within_range(BIF_ARG_1, range);
-
+ hash = make_hash2(BIF_ARG_1);
+ if (range) {
+ final_hash = hash % range; /* [0..range-1] */
+ } else {
+ final_hash = hash;
+ }
/*
* Return either a small or a big. Use the heap for bigs if there is room.
*/
#if defined(ARCH_64)
- BIF_RET(make_small(hash));
+ BIF_RET(make_small(final_hash));
#else
- if (IS_USMALL(0, hash)) {
- BIF_RET(make_small(hash));
+ if (IS_USMALL(0, final_hash)) {
+ BIF_RET(make_small(final_hash));
} else {
Eterm* hp = HAlloc(BIF_P, BIG_UINT_HEAP_SIZE);
- BIF_RET(uint_to_big(hash, hp));
+ BIF_RET(uint_to_big(final_hash, hp));
}
#endif
}
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c
index 14abf461a3..f7777c8b92 100644
--- a/erts/emulator/beam/erl_nif.c
+++ b/erts/emulator/beam/erl_nif.c
@@ -1214,25 +1214,15 @@ int enif_compare(Eterm lhs, Eterm rhs)
return result;
}
+unsigned long enif_phash2(Eterm term)
+{
#if SIZEOF_LONG < 4
/* This *really* shouldn't happen */
# error Incompatible long word size
#endif
-
-unsigned long enif_phash2(Eterm term)
-{
return make_hash2(term) & ((1 << 27) - 1);
}
-unsigned long enif_phash2_ranged(Eterm term, unsigned long range)
-{
-#if SIZEOF_LONG > 4
- if (range > (unsigned long) UINT32_MAX)
- range = 0;
-#endif
- return make_hash2_within_range(term, range);
-}
-
int enif_get_tuple(ErlNifEnv* env, Eterm tpl, int* arity, const Eterm** array)
{
Eterm* ptr;
diff --git a/erts/emulator/beam/erl_nif_api_funcs.h b/erts/emulator/beam/erl_nif_api_funcs.h
index 8a3f9165d9..c096b18f91 100644
--- a/erts/emulator/beam/erl_nif_api_funcs.h
+++ b/erts/emulator/beam/erl_nif_api_funcs.h
@@ -48,7 +48,6 @@ ERL_NIF_API_FUNC_DECL(int,enif_get_tuple,(ErlNifEnv* env, ERL_NIF_TERM tpl, int*
ERL_NIF_API_FUNC_DECL(int,enif_is_identical,(ERL_NIF_TERM lhs, ERL_NIF_TERM rhs));
ERL_NIF_API_FUNC_DECL(int,enif_compare,(ERL_NIF_TERM lhs, ERL_NIF_TERM rhs));
ERL_NIF_API_FUNC_DECL(unsigned long,enif_phash2,(ERL_NIF_TERM term));
-ERL_NIF_API_FUNC_DECL(unsigned long,enif_phash2_ranged,(ERL_NIF_TERM term, unsigned long));
ERL_NIF_API_FUNC_DECL(ERL_NIF_TERM,enif_make_binary,(ErlNifEnv* env, ErlNifBinary* bin));
ERL_NIF_API_FUNC_DECL(ERL_NIF_TERM,enif_make_badarg,(ErlNifEnv* env));
ERL_NIF_API_FUNC_DECL(ERL_NIF_TERM,enif_make_int,(ErlNifEnv* env, int i));
@@ -211,7 +210,6 @@ ERL_NIF_API_FUNC_DECL(int, enif_compare_monitors,(const ErlNifMonitor*,const Erl
# define enif_is_identical ERL_NIF_API_FUNC_MACRO(enif_is_identical)
# define enif_compare ERL_NIF_API_FUNC_MACRO(enif_compare)
# define enif_phash2 ERL_NIF_API_FUNC_MACRO(enif_phash2)
-# define enif_phash2_ranged ERL_NIF_API_FUNC_MACRO(enif_phash2_ranged)
# define enif_make_binary ERL_NIF_API_FUNC_MACRO(enif_make_binary)
# define enif_make_badarg ERL_NIF_API_FUNC_MACRO(enif_make_badarg)
diff --git a/erts/emulator/beam/erl_utils.h b/erts/emulator/beam/erl_utils.h
index 75578c26d6..47289a0af1 100644
--- a/erts/emulator/beam/erl_utils.h
+++ b/erts/emulator/beam/erl_utils.h
@@ -119,7 +119,6 @@ Sint erts_list_length(Eterm);
int erts_is_builtin(Eterm, Eterm, int);
Uint32 block_hash(byte *, unsigned, Uint32);
Uint32 make_hash2(Eterm);
-Uint32 make_hash2_within_range(Eterm, Uint32);
Uint32 make_hash(Eterm);
Uint32 make_internal_hash(Eterm);
diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c
index 72c59b33c6..8f3f48f38f 100644
--- a/erts/emulator/beam/utils.c
+++ b/erts/emulator/beam/utils.c
@@ -1552,16 +1552,6 @@ make_hash2(Eterm term)
}
}
-Uint32
-make_hash2_within_range(Eterm term, Uint32 range)
-{
- Uint32 hash = make_hash2(term);
- if (range)
- return hash % range; /* [0..range-1] */
- else
- return hash; /* Special case: 2**32 */
-}
-
/* Term hash function for internal use.
*
* Limitation #1: Is not "portable" in any way between different VM instances.