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authorSverker Eriksson <[email protected]>2010-11-26 15:25:25 +0100
committerSverker Eriksson <[email protected]>2010-11-26 15:25:25 +0100
commit47b934a0eddc8e8cef5d1da6b08d4f698bc81528 (patch)
treee99a7a29ff53aa5a6f26e91e267822bf3e88670a /erts/emulator/beam/erl_nif.c
parente64306910f2e0d25c4327068ab02b24270be697d (diff)
parentcacb1e539b2ed8ac684245db7d27597719d4a9d3 (diff)
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Merge branch 'sverker/halfword-testcases/OTP-8884' into dev
* sverker/halfword-testcases/OTP-8884: NIF 64-bit integer get/make bugfix for halfword emulator. Teach erl_alloc.c not to disable internal allocators for halfword
Diffstat (limited to 'erts/emulator/beam/erl_nif.c')
-rw-r--r--erts/emulator/beam/erl_nif.c30
1 files changed, 24 insertions, 6 deletions
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c
index 1dd9c8bd4a..a680097c2d 100644
--- a/erts/emulator/beam/erl_nif.c
+++ b/erts/emulator/beam/erl_nif.c
@@ -99,6 +99,16 @@ static Eterm* alloc_heap_heavy(ErlNifEnv* env, unsigned need, Eterm* hp)
return hp;
}
+#if SIZEOF_LONG != ERTS_SIZEOF_ETERM
+static ERTS_INLINE void ensure_heap(ErlNifEnv* env, unsigned may_need)
+{
+ if (env->hp + may_need > env->hp_end) {
+ alloc_heap_heavy(env, may_need, env->hp);
+ env->hp -= may_need;
+ }
+}
+#endif
+
void erts_pre_nif(ErlNifEnv* env, Process* p, struct erl_module_nif* mod_nif)
{
env->mod_nif = mod_nif;
@@ -730,9 +740,8 @@ int enif_get_long(ErlNifEnv* env, Eterm term, long* ip)
{
#if SIZEOF_LONG == ERTS_SIZEOF_ETERM
return term_to_Sint(term, ip);
-#elif SIZEOF_INT == ERTS_SIZEOF_ETERM
- Sint i;
- return term_to_Sint(term, &i) ? (*ip = (long) i, 1) : 0;
+#elif SIZEOF_LONG == 8
+ return term_to_Sint64(term, ip);
#else
# error Unknown long word size
#endif
@@ -742,9 +751,8 @@ int enif_get_ulong(ErlNifEnv* env, Eterm term, unsigned long* ip)
{
#if SIZEOF_LONG == ERTS_SIZEOF_ETERM
return term_to_Uint(term, ip);
-#elif SIZEOF_INT == ERTS_SIZEOF_ETERM
- Uint u;
- return term_to_Uint(term, &u) ? (*ip = (unsigned long) u, 1) : 0;
+#elif SIZEOF_LONG == 8
+ return term_to_Uint64(term, ip);
#else
# error Unknown long word size
#endif
@@ -821,12 +829,22 @@ ERL_NIF_TERM enif_make_uint(ErlNifEnv* env, unsigned i)
ERL_NIF_TERM enif_make_long(ErlNifEnv* env, long i)
{
+#if SIZEOF_LONG == ERTS_SIZEOF_ETERM
return IS_SSMALL(i) ? make_small(i) : small_to_big(i, alloc_heap(env,2));
+#elif SIZEOF_LONG == 8
+ ensure_heap(env,3);
+ return erts_sint64_to_big(i, &env->hp);
+#endif
}
ERL_NIF_TERM enif_make_ulong(ErlNifEnv* env, unsigned long i)
{
+#if SIZEOF_LONG == ERTS_SIZEOF_ETERM
return IS_USMALL(0,i) ? make_small(i) : uint_to_big(i,alloc_heap(env,2));
+#elif SIZEOF_LONG == 8
+ ensure_heap(env,3);
+ return erts_uint64_to_big(i, &env->hp);
+#endif
}
#if HAVE_INT64 && SIZEOF_LONG != 8