diff options
Diffstat (limited to 'erts/emulator/beam/erl_nif.c')
| -rw-r--r-- | erts/emulator/beam/erl_nif.c | 93 |
1 files changed, 77 insertions, 16 deletions
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c index 68421b4387..62798bb2c1 100644 --- a/erts/emulator/beam/erl_nif.c +++ b/erts/emulator/beam/erl_nif.c @@ -32,6 +32,7 @@ #include "error.h" #include "big.h" #include "beam_bp.h" +#include "erl_thr_progress.h" #include <limits.h> #include <stddef.h> /* offsetof */ @@ -130,10 +131,13 @@ static void pre_nif_noproc(ErlNifEnv* env, struct erl_module_nif* mod_nif) env->tmp_obj_list = NULL; } -/* Temporary object header, auto-deallocated when NIF returns. */ +/* Temporary object header, auto-deallocated when NIF returns + * or when independent environment is cleared. + */ struct enif_tmp_obj_t { struct enif_tmp_obj_t* next; void (*dtor)(struct enif_tmp_obj_t*); + ErtsAlcType_t allocator; /*char data[];*/ }; @@ -244,7 +248,7 @@ ErlNifEnv* enif_alloc_env(void) msg_env->env.hp_end = phony_heap; msg_env->env.heap_frag = NULL; msg_env->env.mod_nif = NULL; - msg_env->env.tmp_obj_list = (struct enif_tmp_obj_t*) 1; /* invalid non-NULL */ + msg_env->env.tmp_obj_list = NULL; msg_env->env.proc = &msg_env->phony_proc; memset(&msg_env->phony_proc, 0, sizeof(Process)); HEAP_START(&msg_env->phony_proc) = phony_heap; @@ -289,6 +293,7 @@ void enif_clear_env(ErlNifEnv* env) menv->env.hp = menv->env.hp_end = HEAP_TOP(p); ASSERT(!is_offheap(&MSO(p))); + free_tmp_objs(env); } int enif_send(ErlNifEnv* env, const ErlNifPid* to_pid, ErlNifEnv* msg_env, ERL_NIF_TERM msg) @@ -435,24 +440,36 @@ int enif_is_exception(ErlNifEnv* env, ERL_NIF_TERM term) return term == THE_NON_VALUE; } +int enif_is_number(ErlNifEnv* env, ERL_NIF_TERM term) +{ + return is_number(term); +} + +static ERTS_INLINE int is_proc_bound(ErlNifEnv* env) +{ + return env->mod_nif != NULL; +} + static void aligned_binary_dtor(struct enif_tmp_obj_t* obj) { - erts_free_aligned_binary_bytes_extra((byte*)obj,ERTS_ALC_T_TMP); + erts_free_aligned_binary_bytes_extra((byte*)obj, obj->allocator); } int enif_inspect_binary(ErlNifEnv* env, Eterm bin_term, ErlNifBinary* bin) { + ErtsAlcType_t allocator = is_proc_bound(env) ? ERTS_ALC_T_TMP : ERTS_ALC_T_NIF; union { struct enif_tmp_obj_t* tmp; byte* raw_ptr; }u; u.tmp = NULL; - bin->data = erts_get_aligned_binary_bytes_extra(bin_term, &u.raw_ptr, ERTS_ALC_T_TMP, + bin->data = erts_get_aligned_binary_bytes_extra(bin_term, &u.raw_ptr, allocator, sizeof(struct enif_tmp_obj_t)); if (bin->data == NULL) { return 0; } if (u.tmp != NULL) { + u.tmp->allocator = allocator; u.tmp->next = env->tmp_obj_list; u.tmp->dtor = &aligned_binary_dtor; env->tmp_obj_list = u.tmp; @@ -466,12 +483,13 @@ int enif_inspect_binary(ErlNifEnv* env, Eterm bin_term, ErlNifBinary* bin) static void tmp_alloc_dtor(struct enif_tmp_obj_t* obj) { - erts_free(ERTS_ALC_T_TMP, obj); + erts_free(obj->allocator, obj); } int enif_inspect_iolist_as_binary(ErlNifEnv* env, Eterm term, ErlNifBinary* bin) { struct enif_tmp_obj_t* tobj; + ErtsAlcType_t allocator; Uint sz; if (is_binary(term)) { return enif_inspect_binary(env,term,bin); @@ -486,8 +504,10 @@ int enif_inspect_iolist_as_binary(ErlNifEnv* env, Eterm term, ErlNifBinary* bin) if (erts_iolist_size(term, &sz)) { return 0; } - - tobj = erts_alloc(ERTS_ALC_T_TMP, sz + sizeof(struct enif_tmp_obj_t)); + + allocator = is_proc_bound(env) ? ERTS_ALC_T_TMP : ERTS_ALC_T_NIF; + tobj = erts_alloc(allocator, sz + sizeof(struct enif_tmp_obj_t)); + tobj->allocator = allocator; tobj->next = env->tmp_obj_list; tobj->dtor = &tmp_alloc_dtor; env->tmp_obj_list = tobj; @@ -578,7 +598,15 @@ int enif_is_identical(Eterm lhs, Eterm rhs) int enif_compare(Eterm lhs, Eterm rhs) { - return CMP(lhs,rhs); + Sint result = CMP(lhs,rhs); + + if (result < 0) { + return -1; + } else if (result > 0) { + return 1; + } + + return result; } int enif_get_tuple(ErlNifEnv* env, Eterm tpl, int* arity, const Eterm** array) @@ -668,6 +696,7 @@ Eterm enif_make_sub_binary(ErlNifEnv* env, ERL_NIF_TERM bin_term, ErlSubBin* sb; Eterm orig; Uint offset, bit_offset, bit_size; +#ifdef DEBUG unsigned src_size; ASSERT(is_binary(bin_term)); @@ -675,6 +704,7 @@ Eterm enif_make_sub_binary(ErlNifEnv* env, ERL_NIF_TERM bin_term, ASSERT(pos <= src_size); ASSERT(size <= src_size); ASSERT(pos + size <= src_size); +#endif sb = (ErlSubBin*) alloc_heap(env, ERL_SUB_BIN_SIZE); ERTS_GET_REAL_BIN(bin_term, orig, offset, bit_offset, bit_size); sb->thing_word = HEADER_SUB_BIN; @@ -833,8 +863,11 @@ ERL_NIF_TERM enif_make_uint(ErlNifEnv* env, unsigned i) ERL_NIF_TERM enif_make_long(ErlNifEnv* env, long i) { + if (IS_SSMALL(i)) { + return make_small(i); + } #if SIZEOF_LONG == ERTS_SIZEOF_ETERM - return IS_SSMALL(i) ? make_small(i) : small_to_big(i, alloc_heap(env,2)); + return small_to_big(i, alloc_heap(env,2)); #elif SIZEOF_LONG == 8 ensure_heap(env,3); return erts_sint64_to_big(i, &env->hp); @@ -843,8 +876,11 @@ ERL_NIF_TERM enif_make_long(ErlNifEnv* env, long i) ERL_NIF_TERM enif_make_ulong(ErlNifEnv* env, unsigned long i) { + if (IS_USMALL(0,i)) { + return make_small(i); + } #if SIZEOF_LONG == ERTS_SIZEOF_ETERM - return IS_USMALL(0,i) ? make_small(i) : uint_to_big(i,alloc_heap(env,2)); + return uint_to_big(i,alloc_heap(env,2)); #elif SIZEOF_LONG == 8 ensure_heap(env,3); return erts_uint64_to_big(i, &env->hp); @@ -1007,6 +1043,29 @@ void enif_system_info(ErlNifSysInfo *sip, size_t si_size) driver_system_info(sip, si_size); } +int enif_make_reverse_list(ErlNifEnv* env, ERL_NIF_TERM term, ERL_NIF_TERM *list) { + Eterm *listptr, ret = NIL, *hp; + + if (is_nil(term)) { + *list = term; + return 1; + } + + ret = NIL; + + while (is_not_nil(term)) { + if (is_not_list(term)) { + return 0; + } + hp = alloc_heap(env, 2); + listptr = list_val(term); + ret = CONS(hp, CAR(listptr), ret); + term = CDR(listptr); + } + *list = ret; + return 1; +} + ErlNifMutex* enif_mutex_create(char *name) { return erl_drv_mutex_create(name); } void enif_mutex_destroy(ErlNifMutex *mtx) { erl_drv_mutex_destroy(mtx); } @@ -1146,7 +1205,7 @@ enif_open_resource_type(ErlNifEnv* env, ErlNifResourceFlags op = flags; Eterm module_am, name_am; - ASSERT(erts_smp_is_system_blocked(0)); + ASSERT(erts_smp_thr_progress_is_blocking()); ASSERT(module_str == NULL); /* for now... */ module_am = make_atom(env->mod_nif->mod->module); name_am = enif_make_atom(env, name_str); @@ -1440,7 +1499,7 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2) /* Block system (is this the right place to do it?) */ erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); - erts_smp_block_system(0); + erts_smp_thr_progress_block(); /* Find calling module */ ASSERT(BIF_P->current != NULL); @@ -1629,7 +1688,7 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2) erts_sys_ddll_free_error(&errdesc); } - erts_smp_release_system(); + erts_smp_thr_progress_unblock(); erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN); erts_free(ERTS_ALC_T_TMP, lib_name); BIF_RET(ret); @@ -1641,7 +1700,7 @@ erts_unload_nif(struct erl_module_nif* lib) { ErlNifResourceType* rt; ErlNifResourceType* next; - ASSERT(erts_smp_is_system_blocked(0)); + ASSERT(erts_smp_thr_progress_is_blocking()); ASSERT(lib != NULL); ASSERT(lib->mod != NULL); for (rt = resource_type_list.next; @@ -1701,8 +1760,10 @@ struct readonly_check_t }; static void add_readonly_check(ErlNifEnv* env, unsigned char* ptr, unsigned sz) { - struct readonly_check_t* obj = erts_alloc(ERTS_ALC_T_TMP, + ErtsAlcType_t allocator = is_proc_bound(env) ? ERTS_ALC_T_TMP : ERTS_ALC_T_NIF; + struct readonly_check_t* obj = erts_alloc(allocator, sizeof(struct readonly_check_t)); + obj->hdr.allocator = allocator; obj->hdr.next = env->tmp_obj_list; env->tmp_obj_list = &obj->hdr; obj->hdr.dtor = &readonly_check_dtor; @@ -1719,7 +1780,7 @@ static void readonly_check_dtor(struct enif_tmp_obj_t* o) " %x != %x\r\nABORTING\r\n", chksum, obj->checksum); abort(); } - erts_free(ERTS_ALC_T_TMP, obj); + erts_free(obj->hdr.allocator, obj); } static unsigned calc_checksum(unsigned char* ptr, unsigned size) { |