diff options
Diffstat (limited to 'erts/emulator/test/nif_SUITE_data/nif_SUITE.c')
-rw-r--r-- | erts/emulator/test/nif_SUITE_data/nif_SUITE.c | 1620 |
1 files changed, 1558 insertions, 62 deletions
diff --git a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c index f2b1ef9d24..155bda6df0 100644 --- a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c +++ b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2009-2016. All Rights Reserved. + * Copyright Ericsson AB 2009-2017. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -17,18 +17,50 @@ * * %CopyrightEnd% */ -#include "erl_nif.h" +#include <erl_nif.h> #include <stdio.h> #include <string.h> #include <assert.h> #include <limits.h> +#include <errno.h> #ifndef __WIN32__ #include <unistd.h> +#include <fcntl.h> #endif #include "nif_mod.h" +#if 0 +static ErlNifMutex* dbg_trace_lock; +#define DBG_TRACE_INIT dbg_trace_lock = enif_mutex_create("nif_SUITE.DBG_TRACE") +#define DBG_TRACE_FINI enif_mutex_destroy(dbg_trace_lock) +#define DBG_TRACE_LOCK enif_mutex_lock(dbg_trace_lock) +#define DBG_TRACE_UNLOCK enif_mutex_unlock(dbg_trace_lock) +#define DBG_TRACE0(FMT) do {DBG_TRACE_LOCK; enif_fprintf(stderr, FMT); DBG_TRACE_UNLOCK; }while(0) +#define DBG_TRACE1(FMT, A) do {DBG_TRACE_LOCK; enif_fprintf(stderr, FMT, A); DBG_TRACE_UNLOCK; }while(0) +#define DBG_TRACE2(FMT, A, B) do {DBG_TRACE_LOCK; enif_fprintf(stderr, FMT, A, B); DBG_TRACE_UNLOCK; }while(0) +#define DBG_TRACE3(FMT, A, B, C) do {DBG_TRACE_LOCK; enif_fprintf(stderr, FMT, A, B, C); DBG_TRACE_UNLOCK; }while(0) +#define DBG_TRACE4(FMT, A, B, C, D) do {DBG_TRACE_LOCK; enif_fprintf(stderr, FMT, A, B, C, D); DBG_TRACE_UNLOCK; }while(0) +#else +#define DBG_TRACE_INIT +#define DBG_TRACE_FINI +#define DBG_TRACE0(FMT) +#define DBG_TRACE1(FMT, A) +#define DBG_TRACE2(FMT, A, B) +#define DBG_TRACE3(FMT, A, B, C) +#define DBG_TRACE4(FMT, A, B, C, D) +#endif + +/* + * Hack to get around this function missing from the NIF API. + * TODO: Add this function/macro in the appropriate place, probably with + * enif_make_pid() in erl_nif_api_funcs.h + */ +#ifndef enif_make_port +#define enif_make_port(ENV, PORT) ((void)(ENV),(const ERL_NIF_TERM)((PORT)->port_id)) +#endif + static int static_cntA; /* zero by default */ static int static_cntB = NIF_SUITE_LIB_VER * 100; @@ -42,7 +74,22 @@ static ERL_NIF_TERM atom_second; static ERL_NIF_TERM atom_millisecond; static ERL_NIF_TERM atom_microsecond; static ERL_NIF_TERM atom_nanosecond; - +static ERL_NIF_TERM atom_eagain; +static ERL_NIF_TERM atom_eof; +static ERL_NIF_TERM atom_error; +static ERL_NIF_TERM atom_fd_resource_stop; +static ERL_NIF_TERM atom_monitor_resource_type; +static ERL_NIF_TERM atom_monitor_resource_down; +static ERL_NIF_TERM atom_init; +static ERL_NIF_TERM atom_stats; +static ERL_NIF_TERM atom_done; +static ERL_NIF_TERM atom_stop; +static ERL_NIF_TERM atom_null; +static ERL_NIF_TERM atom_pid; +static ERL_NIF_TERM atom_port; +static ERL_NIF_TERM atom_send; +static ERL_NIF_TERM atom_lookup; +static ERL_NIF_TERM atom_badarg; typedef struct { @@ -102,23 +149,69 @@ struct binary_resource { unsigned size; }; +static ErlNifResourceType* fd_resource_type; +static void fd_resource_dtor(ErlNifEnv* env, void* obj); +static void fd_resource_stop(ErlNifEnv* env, void* obj, ErlNifEvent, int); +static ErlNifResourceTypeInit fd_rt_init = { + fd_resource_dtor, + fd_resource_stop +}; +struct fd_resource { + ErlNifEvent fd; + int was_selected; + ErlNifPid pid; +}; + +static ErlNifResourceType* monitor_resource_type; +static void monitor_resource_dtor(ErlNifEnv* env, void* obj); +static void monitor_resource_down(ErlNifEnv*, void* obj, ErlNifPid*, ErlNifMonitor*); +static ErlNifResourceTypeInit monitor_rt_init = { + monitor_resource_dtor, + NULL, + monitor_resource_down +}; +struct monitor_resource { + ErlNifPid receiver; + int use_msgenv; +}; + +static ErlNifResourceType* frenzy_resource_type; +static void frenzy_resource_dtor(ErlNifEnv* env, void* obj); +static void frenzy_resource_down(ErlNifEnv*, void* obj, ErlNifPid*, ErlNifMonitor*); +static ErlNifResourceTypeInit frenzy_rt_init = { + frenzy_resource_dtor, + NULL, + frenzy_resource_down +}; + +static ErlNifResourceType* whereis_resource_type; +static void whereis_thread_resource_dtor(ErlNifEnv* env, void* obj); +static ErlNifResourceType* ioq_resource_type; + +static void ioq_resource_dtor(ErlNifEnv* env, void* obj); +struct ioq_resource { + ErlNifIOQueue *q; +}; + static int get_pointer(ErlNifEnv* env, ERL_NIF_TERM term, void** pp) { - ErlNifUInt64 i64; - int r = enif_get_uint64(env, term, &i64); + ErlNifBinary bin; + int r = enif_inspect_binary(env, term, &bin); if (r) { - *pp = (void*)i64; + *pp = *(void**)bin.data; } return r; } static ERL_NIF_TERM make_pointer(ErlNifEnv* env, void* p) { - ErlNifUInt64 i64 = (ErlNifUInt64) p; - return enif_make_uint64(env, i64); + void** bin_data; + ERL_NIF_TERM res; + bin_data = (void**)enif_make_new_binary(env, sizeof(void*), &res); + *bin_data = p; + return res; } - static int load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info) { PrivData* data = enif_alloc(sizeof(PrivData)); @@ -127,6 +220,8 @@ static int load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info) data->call_history = NULL; data->nif_mod = NULL; + DBG_TRACE_INIT; + add_call(env, data, "load"); data->rt_arr[0].t = enif_open_resource_type(env,NULL,"Gold",resource_dtor, @@ -141,6 +236,23 @@ static int load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info) msgenv_resource_type = enif_open_resource_type(env,NULL,"nif_SUITE.msgenv", msgenv_dtor, ERL_NIF_RT_CREATE, NULL); + fd_resource_type = enif_open_resource_type_x(env, "nif_SUITE.fd", + &fd_rt_init, + ERL_NIF_RT_CREATE, NULL); + monitor_resource_type = enif_open_resource_type_x(env, "nif_SUITE.monitor", + &monitor_rt_init, + ERL_NIF_RT_CREATE, NULL); + frenzy_resource_type = enif_open_resource_type_x(env, "nif_SUITE.monitor_frenzy", + &frenzy_rt_init, + ERL_NIF_RT_CREATE, NULL); + + whereis_resource_type = enif_open_resource_type(env, NULL, "nif_SUITE.whereis", + whereis_thread_resource_dtor, ERL_NIF_RT_CREATE, NULL); + + ioq_resource_type = enif_open_resource_type(env,NULL,"ioq", + ioq_resource_dtor, + ERL_NIF_RT_CREATE, NULL); + atom_false = enif_make_atom(env,"false"); atom_true = enif_make_atom(env,"true"); atom_self = enif_make_atom(env,"self"); @@ -151,6 +263,22 @@ static int load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info) atom_millisecond = enif_make_atom(env,"millisecond"); atom_microsecond = enif_make_atom(env,"microsecond"); atom_nanosecond = enif_make_atom(env,"nanosecond"); + atom_eagain = enif_make_atom(env, "eagain"); + atom_eof = enif_make_atom(env, "eof"); + atom_error = enif_make_atom(env, "error"); + atom_fd_resource_stop = enif_make_atom(env, "fd_resource_stop"); + atom_monitor_resource_type = enif_make_atom(env, "monitor_resource_type"); + atom_monitor_resource_down = enif_make_atom(env, "monitor_resource_down"); + atom_init = enif_make_atom(env,"init"); + atom_stats = enif_make_atom(env,"stats"); + atom_done = enif_make_atom(env,"done"); + atom_stop = enif_make_atom(env,"stop"); + atom_null = enif_make_atom(env,"null"); + atom_pid = enif_make_atom(env, "pid"); + atom_port = enif_make_atom(env, "port"); + atom_send = enif_make_atom(env, "send"); + atom_lookup = enif_make_atom(env, "lookup"); + atom_badarg = enif_make_atom(env, "badarg"); *priv_data = data; return 0; @@ -184,14 +312,6 @@ static void resource_takeover(ErlNifEnv* env, PrivData* priv) msgenv_resource_type = rt; } -static int reload(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info) -{ - PrivData* priv = (PrivData*) *priv_data; - add_call(env, priv, "reload"); - resource_takeover(env,priv); - return 0; -} - static int upgrade(ErlNifEnv* env, void** priv_data, void** old_priv_data, ERL_NIF_TERM load_info) { PrivData* priv = (PrivData*) *old_priv_data; @@ -212,6 +332,7 @@ static void unload(ErlNifEnv* env, void* priv_data) } enif_free(priv_data); } + DBG_TRACE_FINI; } static ERL_NIF_TERM lib_version(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) @@ -394,8 +515,7 @@ static ERL_NIF_TERM type_test(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[ ErlNifSInt64 sint64; ErlNifUInt64 uint64; double d; - ERL_NIF_TERM atom, ref1, ref2, term; - size_t len; + ERL_NIF_TERM atom, ref1, ref2; sint = INT_MIN; do { @@ -602,6 +722,31 @@ static ERL_NIF_TERM compare(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) return enif_make_int(env, enif_compare(argv[0],argv[1])); } +static ERL_NIF_TERM hash_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + if (argc != 3) { + return enif_make_badarg(env); + } + + ErlNifHash type; + if (enif_is_identical(argv[0], enif_make_atom(env, "internal"))) { + type = ERL_NIF_INTERNAL_HASH; + } + else if (enif_is_identical(argv[0], enif_make_atom(env, "phash2"))) { + type = ERL_NIF_PHASH2; + } + else { + return enif_make_badarg(env); + } + + ErlNifUInt64 salt; + if (! enif_get_uint64(env, argv[2], &salt)) { + return enif_make_badarg(env); + } + + return enif_make_uint64(env, enif_hash(type, argv[1], salt)); +} + static ERL_NIF_TERM many_args_100(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) { int i, k; @@ -836,6 +981,9 @@ static ERL_NIF_TERM get_resource(ErlNifEnv* env, int argc, const ERL_NIF_TERM ar if (enif_is_identical(argv[0], atom_binary_resource_type)) { type.t = binary_resource_type; } + else if (enif_is_identical(argv[0], atom_monitor_resource_type)) { + type.t = monitor_resource_type; + } else { get_pointer(env, argv[0], &type.vp); } @@ -859,6 +1007,30 @@ static ERL_NIF_TERM release_resource(ErlNifEnv* env, int argc, const ERL_NIF_TER return enif_make_atom(env,"ok"); } +static void* threaded_release_resource(void* resource) +{ + enif_release_resource(resource); +} + +static ERL_NIF_TERM release_resource_from_thread(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + void* resource; + ErlNifTid tid; + int err; + + if (!get_pointer(env, argv[0], &resource)) { + return enif_make_badarg(env); + } + if (enif_thread_create("nif_SUITE:release_resource_from_thread", &tid, + threaded_release_resource, resource, NULL) != 0) { + return enif_make_badarg(env); + } + err = enif_thread_join(tid, NULL); + assert(err == 0); + return atom_ok; +} + + /* * argv[0] an atom * argv[1] a binary @@ -1024,15 +1196,248 @@ static void fill(void* dst, unsigned bytes, int seed) } } +/* enif_whereis_... tests */ + +enum { + /* results */ + WHEREIS_SUCCESS, + WHEREIS_ERROR_TYPE, + WHEREIS_ERROR_LOOKUP, + WHEREIS_ERROR_SEND, + /* types */ + WHEREIS_LOOKUP_PID, /* enif_whereis_pid() */ + WHEREIS_LOOKUP_PORT /* enif_whereis_port() */ +}; + +typedef union { + ErlNifPid pid; + ErlNifPort port; +} whereis_term_data_t; + +/* single use, no cross-thread access/serialization */ +typedef struct { + ErlNifEnv* env; + ERL_NIF_TERM name; + whereis_term_data_t res; + ErlNifTid tid; + int type; +} whereis_thread_resource_t; + +static whereis_thread_resource_t* whereis_thread_resource_create(void) +{ + whereis_thread_resource_t* rp = (whereis_thread_resource_t*) + enif_alloc_resource(whereis_resource_type, sizeof(*rp)); + memset(rp, 0, sizeof(*rp)); + rp->env = enif_alloc_env(); + + return rp; +} + +static void whereis_thread_resource_dtor(ErlNifEnv* env, void* obj) +{ + whereis_thread_resource_t* rp = (whereis_thread_resource_t*) obj; + enif_free_env(rp->env); +} + +static int whereis_type(ERL_NIF_TERM type) +{ + if (enif_is_identical(type, atom_pid)) + return WHEREIS_LOOKUP_PID; + + if (enif_is_identical(type, atom_port)) + return WHEREIS_LOOKUP_PORT; + + return WHEREIS_ERROR_TYPE; +} + +static int whereis_lookup_internal( + ErlNifEnv* env, int type, ERL_NIF_TERM name, whereis_term_data_t* out) +{ + if (type == WHEREIS_LOOKUP_PID) + return enif_whereis_pid(env, name, & out->pid) + ? WHEREIS_SUCCESS : WHEREIS_ERROR_LOOKUP; + + if (type == WHEREIS_LOOKUP_PORT) + return enif_whereis_port(env, name, & out->port) + ? WHEREIS_SUCCESS : WHEREIS_ERROR_LOOKUP; + + return WHEREIS_ERROR_TYPE; +} + +static int whereis_send_internal( + ErlNifEnv* env, int type, whereis_term_data_t* to, ERL_NIF_TERM msg) +{ + if (type == WHEREIS_LOOKUP_PID) + return enif_send(env, & to->pid, NULL, msg) + ? WHEREIS_SUCCESS : WHEREIS_ERROR_SEND; + + if (type == WHEREIS_LOOKUP_PORT) + return enif_port_command(env, & to->port, NULL, msg) + ? WHEREIS_SUCCESS : WHEREIS_ERROR_SEND; + + return WHEREIS_ERROR_TYPE; +} + +static int whereis_resolved_term( + ErlNifEnv* env, int type, whereis_term_data_t* res, ERL_NIF_TERM* out) +{ + switch (type) { + case WHEREIS_LOOKUP_PID: + *out = enif_make_pid(env, & res->pid); + break; + case WHEREIS_LOOKUP_PORT: + *out = enif_make_port(env, & res->port); + break; + default: + return WHEREIS_ERROR_TYPE; + } + return WHEREIS_SUCCESS; +} + +static ERL_NIF_TERM whereis_result_term(ErlNifEnv* env, int result) +{ + ERL_NIF_TERM err; + switch (result) + { + case WHEREIS_SUCCESS: + return atom_ok; + case WHEREIS_ERROR_LOOKUP: + err = atom_lookup; + break; + case WHEREIS_ERROR_SEND: + err = atom_send; + break; + case WHEREIS_ERROR_TYPE: + err = atom_badarg; + break; + default: + err = enif_make_int(env, -result); + break; + } + return enif_make_tuple2(env, atom_error, err); +} + +static void* whereis_lookup_thread(void* arg) +{ + whereis_thread_resource_t* rp = (whereis_thread_resource_t*) arg; + int rc; + + /* enif_whereis_xxx should work with allocated or null env */ + rc = whereis_lookup_internal( + ((rp->type == WHEREIS_LOOKUP_PID) ? NULL : rp->env), + rp->type, rp->name, & rp->res); + + return (((char*) NULL) + rc); +} + +/* whereis_term(Type, Name) -> pid() | port() | false */ +static ERL_NIF_TERM +whereis_term(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + whereis_term_data_t res; + ERL_NIF_TERM ret; + int type, rc; + + if (argc != 2) /* allow non-atom name for testing */ + return enif_make_badarg(env); + + if ((type = whereis_type(argv[0])) == WHEREIS_ERROR_TYPE) + return enif_make_badarg(env); + + rc = whereis_lookup_internal(env, type, argv[1], & res); + if (rc == WHEREIS_SUCCESS) { + rc = whereis_resolved_term(env, type, & res, & ret); + } + return (rc == WHEREIS_SUCCESS) ? ret : atom_false; +} + +/* whereis_send(Type, Name, Message) -> ok | {error, Reason} */ +static ERL_NIF_TERM +whereis_send(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + whereis_term_data_t to; + int type, rc; + + if (argc != 3 || !enif_is_atom(env, argv[1])) + return enif_make_badarg(env); + + if ((type = whereis_type(argv[0])) == WHEREIS_ERROR_TYPE) + return enif_make_badarg(env); + + rc = whereis_lookup_internal(env, type, argv[1], & to); + if (rc == WHEREIS_SUCCESS) + rc = whereis_send_internal(env, type, & to, argv[2]); + + return whereis_result_term(env, rc); +} + +/* whereis_thd_lookup(Type, Name) -> {ok, Resource} | {error, SysErrno} */ +static ERL_NIF_TERM +whereis_thd_lookup(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + whereis_thread_resource_t* rp; + int type, rc; + + if (argc != 2 || !enif_is_atom(env, argv[1])) + return enif_make_badarg(env); + + if ((type = whereis_type(argv[0])) == WHEREIS_ERROR_TYPE) + return enif_make_badarg(env); + + rp = whereis_thread_resource_create(); + rp->type = type; + rp->name = enif_make_copy(rp->env, argv[1]); + + rc = enif_thread_create( + "nif_SUITE:whereis_thd", & rp->tid, whereis_lookup_thread, rp, NULL); + + if (rc == 0) { + return enif_make_tuple2(env, atom_ok, enif_make_resource(env, rp)); + } + else { + enif_release_resource(rp); + return enif_make_tuple2(env, atom_error, enif_make_int(env, rc)); + } +} + +/* whereis_thd_result(Resource) -> {ok, pid() | port()} | {error, ErrNum} */ +static ERL_NIF_TERM +whereis_thd_result(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + whereis_thread_resource_t* rp; + ERL_NIF_TERM ret; + char* thdret; /* so we can keep compilers happy converting to int */ + int rc; + + if (argc != 1 + || !enif_get_resource(env, argv[0], whereis_resource_type, (void**) & rp)) + return enif_make_badarg(env); + + if ((rc = enif_thread_join(rp->tid, (void**) & thdret)) != 0) + return enif_make_tuple2(env, atom_error, enif_make_int(env, rc)); + + rc = (int)(thdret - ((char*) NULL)); + if (rc == WHEREIS_SUCCESS) { + rc = whereis_resolved_term(env, rp->type, & rp->res, & ret); + } + ret = (rc == WHEREIS_SUCCESS) + ? enif_make_tuple2(env, atom_ok, ret) : whereis_result_term(env, rc); + + enif_release_resource(rp); + return ret; +} + #define MAKE_TERM_REUSE_LEN 16 struct make_term_info { ErlNifEnv* caller_env; ErlNifEnv* dst_env; + int dst_env_valid; ERL_NIF_TERM reuse[MAKE_TERM_REUSE_LEN]; unsigned reuse_push; unsigned reuse_pull; ErlNifResourceType* resource_type; + void *resource; ERL_NIF_TERM other_term; ERL_NIF_TERM blob; ErlNifPid to_pid; @@ -1058,6 +1463,7 @@ static ERL_NIF_TERM pull_term(struct make_term_info* mti) mti->reuse_push < MAKE_TERM_REUSE_LEN) { mti->reuse_pull = 0; if (mti->reuse_push == 0) { + assert(mti->dst_env_valid); mti->reuse[0] = enif_make_list(mti->dst_env, 0); } } @@ -1111,10 +1517,6 @@ static ERL_NIF_TERM make_term_string(struct make_term_info* mti, int n) { return enif_make_string(mti->dst_env, "Hello!", ERL_NIF_LATIN1); } -static ERL_NIF_TERM make_term_ref(struct make_term_info* mti, int n) -{ - return enif_make_ref(mti->dst_env); -} static ERL_NIF_TERM make_term_sub_binary(struct make_term_info* mti, int n) { ERL_NIF_TERM orig; @@ -1144,12 +1546,7 @@ static ERL_NIF_TERM make_term_list0(struct make_term_info* mti, int n) } static ERL_NIF_TERM make_term_resource(struct make_term_info* mti, int n) { - void* resource = enif_alloc_resource(mti->resource_type, 10); - ERL_NIF_TERM term; - fill(resource, 10, n); - term = enif_make_resource(mti->dst_env, resource); - enif_release_resource(resource); - return term; + return enif_make_resource(mti->dst_env, mti->resource); } static ERL_NIF_TERM make_term_new_binary(struct make_term_info* mti, int n) { @@ -1222,7 +1619,6 @@ static Make_term_Func* make_funcs[] = { make_term_atom, make_term_existing_atom, make_term_string, - //make_term_ref, make_term_sub_binary, make_term_uint, make_term_long, @@ -1246,6 +1642,7 @@ static unsigned num_of_make_funcs() static int make_term_n(struct make_term_info* mti, int n, ERL_NIF_TERM* res) { if (n < num_of_make_funcs()) { + assert(mti->dst_env_valid); *res = make_funcs[n](mti, n); push_term(mti, *res); return 1; @@ -1253,22 +1650,39 @@ static int make_term_n(struct make_term_info* mti, int n, ERL_NIF_TERM* res) return 0; } -static ERL_NIF_TERM make_blob(ErlNifEnv* caller_env, ErlNifEnv* dst_env, - ERL_NIF_TERM other_term) + +static void +init_make_blob(struct make_term_info *mti, + ErlNifEnv* caller_env, + ERL_NIF_TERM other_term) { PrivData* priv = (PrivData*) enif_priv_data(caller_env); + mti->caller_env = caller_env; + mti->resource_type = priv->rt_arr[0].t; + mti->resource = enif_alloc_resource(mti->resource_type, 10); + fill(mti->resource, 10, 17); + mti->other_term = other_term; +} + +static void +fini_make_blob(struct make_term_info *mti) +{ + enif_release_resource(mti->resource); +} + +static ERL_NIF_TERM make_blob(struct make_term_info *mti, + ErlNifEnv* dst_env) +{ ERL_NIF_TERM term, list; int n = 0; - struct make_term_info mti; - mti.caller_env = caller_env; - mti.dst_env = dst_env; - mti.reuse_push = 0; - mti.reuse_pull = 0; - mti.resource_type = priv->rt_arr[0].t; - mti.other_term = other_term; + + mti->reuse_push = 0; + mti->reuse_pull = 0; + mti->dst_env = dst_env; + mti->dst_env_valid = 1; list = enif_make_list(dst_env, 0); - while (make_term_n(&mti, n++, &term)) { + while (make_term_n(mti, n++, &term)) { list = enif_make_list_cell(dst_env, term, list); } return list; @@ -1280,13 +1694,16 @@ static ERL_NIF_TERM send_new_blob(ErlNifEnv* env, int argc, const ERL_NIF_TERM a ERL_NIF_TERM msg, copy; ErlNifEnv* msg_env; int res; + struct make_term_info mti; if (!enif_get_local_pid(env, argv[0], &to)) { return enif_make_badarg(env); } msg_env = enif_alloc_env(); - msg = make_blob(env,msg_env, argv[1]); - copy = make_blob(env,env, argv[1]); + init_make_blob(&mti, env, argv[1]); + msg = make_blob(&mti,msg_env); + copy = make_blob(&mti,env); + fini_make_blob(&mti); res = enif_send(env, &to, msg_env, msg); enif_free_env(msg_env); return enif_make_tuple3(env, atom_ok, enif_make_int(env,res), copy); @@ -1302,9 +1719,12 @@ static ERL_NIF_TERM alloc_msgenv(ErlNifEnv* env, int argc, const ERL_NIF_TERM ar sizeof(*mti)); mti->caller_env = NULL; mti->dst_env = enif_alloc_env(); + mti->dst_env_valid = 1; mti->reuse_push = 0; mti->reuse_pull = 0; mti->resource_type = priv->rt_arr[0].t; + mti->resource = enif_alloc_resource(mti->resource_type, 10); + fill(mti->resource, 10, 17); mti->other_term = enif_make_list(mti->dst_env, 0); mti->blob = enif_make_list(mti->dst_env, 0); mti->mtx = enif_mutex_create("nif_SUITE:mtx"); @@ -1322,6 +1742,7 @@ static void msgenv_dtor(ErlNifEnv* env, void* obj) if (mti->dst_env != NULL) { enif_free_env(mti->dst_env); } + enif_release_resource(mti->resource); enif_mutex_destroy(mti->mtx); enif_cond_destroy(mti->cond); } @@ -1333,6 +1754,7 @@ static ERL_NIF_TERM clear_msgenv(ErlNifEnv* env, int argc, const ERL_NIF_TERM ar return enif_make_badarg(env); } enif_clear_env(mti.p->dst_env); + mti.p->dst_env_valid = 1; mti.p->reuse_pull = 0; mti.p->reuse_push = 0; mti.p->blob = enif_make_list(mti.p->dst_env, 0); @@ -1367,6 +1789,8 @@ static ERL_NIF_TERM send_blob(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[ } copy = enif_make_copy(env, mti.p->blob); res = enif_send(env, &to, mti.p->dst_env, mti.p->blob); + if (res) + mti.p->dst_env_valid = 0; return enif_make_tuple3(env, atom_ok, enif_make_int(env,res), copy); } @@ -1374,7 +1798,6 @@ static ERL_NIF_TERM send3_blob(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv { mti_t mti; ErlNifPid to; - ERL_NIF_TERM copy; int res; if (!enif_get_resource(env, argv[0], msgenv_resource_type, &mti.vp) || !enif_get_local_pid(env, argv[1], &to)) { @@ -1384,6 +1807,8 @@ static ERL_NIF_TERM send3_blob(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv enif_make_copy(mti.p->dst_env, argv[2]), mti.p->blob); res = enif_send(env, &to, mti.p->dst_env, mti.p->blob); + if (res) + mti.p->dst_env_valid = 0; return enif_make_int(env,res); } @@ -1400,6 +1825,8 @@ void* threaded_sender(void *arg) mti.p->send_it = 0; enif_mutex_unlock(mti.p->mtx); mti.p->send_res = enif_send(NULL, &mti.p->to_pid, mti.p->dst_env, mti.p->blob); + if (mti.p->send_res) + mti.p->dst_env_valid = 0; return NULL; } @@ -1471,7 +1898,6 @@ static ERL_NIF_TERM send_term(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[ static ERL_NIF_TERM send_copy_term(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) { - ErlNifEnv* menv; ErlNifPid pid; int ret; if (!enif_get_local_pid(env, argv[0], &pid)) { @@ -1714,24 +2140,45 @@ static ERL_NIF_TERM make_map_remove_nif(ErlNifEnv* env, int argc, const ERL_NIF_ /* maps */ static ERL_NIF_TERM maps_from_list_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) { - ERL_NIF_TERM cell = argv[0]; - ERL_NIF_TERM map = enif_make_new_map(env); - ERL_NIF_TERM tuple; - const ERL_NIF_TERM *pair; - int arity = -1; + ERL_NIF_TERM *keys, *values; + ERL_NIF_TERM result, cell; + unsigned count; + + if (argc != 1 || !enif_get_list_length(env, argv[0], &count)) { + return enif_make_badarg(env); + } - if (argc != 1 && !enif_is_list(env, cell)) return enif_make_badarg(env); + keys = enif_alloc(sizeof(ERL_NIF_TERM) * count * 2); + values = keys + count; - /* assume sorted keys */ + cell = argv[0]; + count = 0; - while (!enif_is_empty_list(env,cell)) { - if (!enif_get_list_cell(env, cell, &tuple, &cell)) return enif_make_badarg(env); - if (enif_get_tuple(env,tuple,&arity,&pair)) { - enif_make_map_put(env, map, pair[0], pair[1], &map); - } + while (!enif_is_empty_list(env, cell)) { + const ERL_NIF_TERM *pair; + ERL_NIF_TERM tuple; + int arity; + + if (!enif_get_list_cell(env, cell, &tuple, &cell) + || !enif_get_tuple(env, tuple, &arity, &pair) + || arity != 2) { + enif_free(keys); + return enif_make_badarg(env); + } + + keys[count] = pair[0]; + values[count] = pair[1]; + + count++; } - return map; + if (!enif_make_map_from_arrays(env, keys, values, count, &result)) { + result = enif_make_atom(env, "has_duplicate_keys"); + } + + enif_free(keys); + + return result; } static ERL_NIF_TERM sorted_list_from_maps_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) { @@ -1958,7 +2405,7 @@ static ERL_NIF_TERM term_to_binary(ErlNifEnv* env, int argc, const ERL_NIF_TERM static ERL_NIF_TERM binary_to_term(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) { ErlNifBinary bin; - ERL_NIF_TERM term, ret_term; + ERL_NIF_TERM term, dummy, ret_term; ErlNifPid pid; ErlNifEnv *msg_env = env; unsigned int opts; @@ -1971,6 +2418,9 @@ static ERL_NIF_TERM binary_to_term(ErlNifEnv* env, int argc, const ERL_NIF_TERM || !enif_get_uint(env, argv[2], &opts)) return enif_make_badarg(env); + /* build dummy heap term first to provoke OTP-15080 */ + dummy = enif_make_list_cell(msg_env, atom_true, atom_false); + ret = enif_binary_to_term(msg_env, bin.data, bin.size, &term, (ErlNifBinaryToTerm)opts); if (!ret) @@ -1978,11 +2428,12 @@ static ERL_NIF_TERM binary_to_term(ErlNifEnv* env, int argc, const ERL_NIF_TERM ret_term = enif_make_uint64(env, ret); if (msg_env != env) { - enif_send(env, &pid, msg_env, term); + enif_send(env, &pid, msg_env, + enif_make_tuple2(msg_env, term, dummy)); enif_free_env(msg_env); return ret_term; } else { - return enif_make_tuple2(env, ret_term, term); + return enif_make_tuple3(env, ret_term, term, dummy); } } @@ -2014,6 +2465,1026 @@ static ERL_NIF_TERM format_term(ErlNifEnv* env, int argc, const ERL_NIF_TERM arg return enif_make_binary(env,&obin); } +static int get_fd(ErlNifEnv* env, ERL_NIF_TERM term, struct fd_resource** rsrc) +{ + if (!enif_get_resource(env, term, fd_resource_type, (void**)rsrc)) { + return 0; + } + return 1; +} + +/* Returns: badarg + * Or an enif_select result, which is a combination of bits: + * ERL_NIF_SELECT_STOP_CALLED = 1 + * ERL_NIF_SELECT_STOP_SCHEDULED = 2 + * ERL_NIF_SELECT_INVALID_EVENT = 4 + * ERL_NIF_SELECT_FAILED = 8 + */ +static ERL_NIF_TERM select_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + struct fd_resource* fdr; + enum ErlNifSelectFlags mode; + void* obj; + ErlNifPid nifpid, *pid = NULL; + ERL_NIF_TERM ref; + int retval; + + if (!get_fd(env, argv[0], &fdr) + || !enif_get_uint(env, argv[1], (unsigned int*)&mode) + || !enif_get_resource(env, argv[2], fd_resource_type, &obj)) + { + return enif_make_badarg(env); + } + + if (argv[3] != atom_null) { + if (!enif_get_local_pid(env, argv[3], &nifpid)) + return enif_make_badarg(env); + pid = &nifpid; + } + ref = argv[4]; + + fdr->was_selected = 1; + enif_self(env, &fdr->pid); + retval = enif_select(env, fdr->fd, mode, obj, pid, ref); + + return enif_make_int(env, retval); +} + +#ifndef __WIN32__ +/* + * Create a read-write pipe with two fds (to read and to write) + */ +static ERL_NIF_TERM pipe_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + struct fd_resource* read_rsrc; + struct fd_resource* write_rsrc; + ERL_NIF_TERM read_fd, write_fd; + int fds[2], flags; + + if (pipe(fds) < 0) + return enif_make_string(env, "pipe failed", ERL_NIF_LATIN1); + + if ((flags = fcntl(fds[0], F_GETFL, 0)) < 0 + || fcntl(fds[0], F_SETFL, flags|O_NONBLOCK) < 0 + || (flags = fcntl(fds[1], F_GETFL, 0)) < 0 + || fcntl(fds[1], F_SETFL, flags|O_NONBLOCK) < 0) { + close(fds[0]); + close(fds[1]); + return enif_make_string(env, "fcntl failed on pipe", ERL_NIF_LATIN1); + } + + read_rsrc = enif_alloc_resource(fd_resource_type, sizeof(struct fd_resource)); + write_rsrc = enif_alloc_resource(fd_resource_type, sizeof(struct fd_resource)); + read_rsrc->fd = fds[0]; + read_rsrc->was_selected = 0; + write_rsrc->fd = fds[1]; + write_rsrc->was_selected = 0; + read_fd = enif_make_resource(env, read_rsrc); + write_fd = enif_make_resource(env, write_rsrc); + enif_release_resource(read_rsrc); + enif_release_resource(write_rsrc); + + return enif_make_tuple2(env, + enif_make_tuple2(env, read_fd, make_pointer(env, read_rsrc)), + enif_make_tuple2(env, write_fd, make_pointer(env, write_rsrc))); +} + +/* + * Create (dupe) of a resource with the same fd, to test stealing + */ +static ERL_NIF_TERM dupe_resource_nif(ErlNifEnv* env, int argc, + const ERL_NIF_TERM argv[]) { + struct fd_resource* orig_rsrc; + + if (!get_fd(env, argv[0], &orig_rsrc)) { + return enif_make_badarg(env); + } else { + struct fd_resource* new_rsrc; + ERL_NIF_TERM new_fd; + + new_rsrc = enif_alloc_resource(fd_resource_type, + sizeof(struct fd_resource)); + new_rsrc->fd = orig_rsrc->fd; + new_rsrc->was_selected = 0; + new_fd = enif_make_resource(env, new_rsrc); + enif_release_resource(new_rsrc); + + return enif_make_tuple2(env, new_fd, make_pointer(env, new_rsrc)); + } +} + +static ERL_NIF_TERM write_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + struct fd_resource* fdr; + ErlNifBinary bin; + int n, written = 0; + + if (!get_fd(env, argv[0], &fdr) + || !enif_inspect_binary(env, argv[1], &bin)) + return enif_make_badarg(env); + + for (;;) { + n = write(fdr->fd, bin.data + written, bin.size - written); + if (n >= 0) { + written += n; + if (written == bin.size) { + return atom_ok; + } + } + else if (errno == EAGAIN) { + return enif_make_tuple2(env, atom_eagain, enif_make_int(env, written)); + } + else if (errno == EINTR) { + continue; + } + else { + return enif_make_tuple2(env, atom_error, enif_make_int(env, errno)); + } + } +} + +static ERL_NIF_TERM read_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + struct fd_resource* fdr; + unsigned char* buf; + int n, count; + ERL_NIF_TERM res; + + if (!get_fd(env, argv[0], &fdr) + || !enif_get_int(env, argv[1], &count) || count < 1) + return enif_make_badarg(env); + + buf = enif_make_new_binary(env, count, &res); + + for (;;) { + n = read(fdr->fd, buf, count); + if (n > 0) { + if (n < count) { + res = enif_make_sub_binary(env, res, 0, n); + } + return res; + } + else if (n == 0) { + return atom_eof; + } + else if (errno == EAGAIN) { + return atom_eagain; + } + else if (errno == EINTR) { + continue; + } + else { + return enif_make_tuple2(env, atom_error, enif_make_int(env, errno)); + } + } +} + +static ERL_NIF_TERM is_closed_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + struct fd_resource* fdr; + + if (!get_fd(env, argv[0], &fdr)) + return enif_make_badarg(env); + + return fdr->fd < 0 ? atom_true : atom_false; +} + +static ERL_NIF_TERM clear_select_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + struct fd_resource* fdr = NULL; + + if (!get_fd(env, argv[0], &fdr)) + return enif_make_badarg(env); + + fdr->fd = -1; + fdr->was_selected = 0; + + return atom_ok; +} + +#endif /* !__WIN32__ */ + + +static void fd_resource_dtor(ErlNifEnv* env, void* obj) +{ + struct fd_resource* fdr = (struct fd_resource*)obj; + resource_dtor(env, obj); +#ifdef __WIN32__ + abort(); +#else + if (fdr->fd >= 0) { + assert(!fdr->was_selected); + close(fdr->fd); + } +#endif +} + +static struct { + void* obj; + int was_direct_call; +}last_fd_stop; +int fd_stop_cnt = 0; + +static void fd_resource_stop(ErlNifEnv* env, void* obj, ErlNifEvent fd, + int is_direct_call) +{ + struct fd_resource* fdr = (struct fd_resource*)obj; + assert(fd == fdr->fd); + assert(fd >= 0); + + last_fd_stop.obj = obj; + last_fd_stop.was_direct_call = is_direct_call; + fd_stop_cnt++; + + close(fd); + fdr->fd = -1; /* thread safety ? */ + fdr->was_selected = 0; + + { + ErlNifEnv* msg_env = enif_alloc_env(); + ERL_NIF_TERM msg; + msg = enif_make_tuple3(msg_env, + atom_fd_resource_stop, + make_pointer(msg_env, obj), + enif_make_int(msg_env, is_direct_call)); + + enif_send(env, &fdr->pid, msg_env, msg); + enif_free_env(msg_env); + } +} + +static ERL_NIF_TERM last_fd_stop_call(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + ERL_NIF_TERM last, ret; + last = enif_make_tuple2(env, make_pointer(env, last_fd_stop.obj), + enif_make_int(env, last_fd_stop.was_direct_call)); + ret = enif_make_tuple2(env, enif_make_int(env, fd_stop_cnt), last); + fd_stop_cnt = 0; + return ret; +} + + +static void monitor_resource_dtor(ErlNifEnv* env, void* obj) +{ + resource_dtor(env, obj); +} + +static ERL_NIF_TERM make_monitor(ErlNifEnv* env, const ErlNifMonitor* mon) +{ + ERL_NIF_TERM mon_bin; + memcpy(enif_make_new_binary(env, sizeof(ErlNifMonitor), &mon_bin), + mon, sizeof(ErlNifMonitor)); + return mon_bin; +} + +static int get_monitor(ErlNifEnv* env, ERL_NIF_TERM term, ErlNifMonitor* mon) +{ + ErlNifBinary bin; + if (!enif_inspect_binary(env, term, &bin) + || bin.size != sizeof(ErlNifMonitor)) + return 0; + memcpy(mon, bin.data, bin.size); + return 1; +} + +static void monitor_resource_down(ErlNifEnv* env, void* obj, ErlNifPid* pid, + ErlNifMonitor* mon) +{ + struct monitor_resource* rsrc = (struct monitor_resource*)obj; + ErlNifEnv* build_env; + ErlNifEnv* msg_env; + ERL_NIF_TERM msg; + + if (rsrc->use_msgenv) { + msg_env = enif_alloc_env(); + build_env = msg_env; + } + else { + msg_env = NULL; + build_env = env; + } + + msg = enif_make_tuple4(build_env, + atom_monitor_resource_down, + make_pointer(build_env, obj), + enif_make_pid(build_env, pid), + make_monitor(build_env, mon)); + + enif_send(env, &rsrc->receiver, msg_env, msg); + if (msg_env) + enif_free_env(msg_env); +} + +static ERL_NIF_TERM alloc_monitor_resource_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + struct monitor_resource* rsrc; + + rsrc = enif_alloc_resource(monitor_resource_type, sizeof(struct monitor_resource)); + + return make_pointer(env,rsrc); +} + +static ERL_NIF_TERM monitor_process_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + struct monitor_resource* rsrc; + ErlNifPid target; + ErlNifMonitor mon; + int res; + + if (!get_pointer(env, argv[0], (void**)&rsrc) + || !enif_get_local_pid(env, argv[1], &target) + || !enif_get_local_pid(env, argv[3], &rsrc->receiver)) { + return enif_make_badarg(env); + } + + rsrc->use_msgenv = (argv[2] == atom_true); + res = enif_monitor_process(env, rsrc, &target, &mon); + + return enif_make_tuple2(env, enif_make_int(env, res), make_monitor(env, &mon)); +} + +static ERL_NIF_TERM demonitor_process_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + struct monitor_resource* rsrc; + ErlNifMonitor mon; + int res; + + if (!get_pointer(env, argv[0], (void**)&rsrc) + || !get_monitor(env, argv[1], &mon)) { + return enif_make_badarg(env); + } + + res = enif_demonitor_process(env, rsrc, &mon); + + return enif_make_int(env, res); +} + +static ERL_NIF_TERM compare_monitors_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + ErlNifMonitor m1, m2; + if (!get_monitor(env, argv[0], &m1) + || !get_monitor(env, argv[1], &m2)) { + return enif_make_badarg(env); + } + + return enif_make_int(env, enif_compare_monitors(&m1, &m2)); +} + + +/*********** monitor_frenzy ************/ + +struct frenzy_rand_bits +{ + unsigned int source; + unsigned int bits_consumed; +}; + +static unsigned int frenzy_rand_bits_max; + +unsigned rand_bits(struct frenzy_rand_bits* rnd, unsigned int nbits) +{ + unsigned int res; + + rnd->bits_consumed += nbits; + assert(rnd->bits_consumed <= frenzy_rand_bits_max); + res = rnd->source & ((1 << nbits)-1); + rnd->source >>= nbits; + return res; +} + +#define FRENZY_PROCS_MAX_BITS 4 +#define FRENZY_PROCS_MAX (1 << FRENZY_PROCS_MAX_BITS) + +#define FRENZY_RESOURCES_MAX_BITS 4 +#define FRENZY_RESOURCES_MAX (1 << FRENZY_RESOURCES_MAX_BITS) + +#define FRENZY_MONITORS_MAX_BITS 4 +#define FRENZY_MONITORS_MAX (1 << FRENZY_MONITORS_MAX_BITS) + +struct frenzy_monitor { + ErlNifMutex* lock; + volatile enum { + MON_FREE, MON_FREE_DOWN, MON_FREE_DEMONITOR, + MON_TRYING, MON_ACTIVE, MON_PENDING + } state; + ErlNifMonitor mon; + ErlNifPid pid; + unsigned int use_cnt; +}; + +struct frenzy_resource { + unsigned int rix; + struct frenzy_monitor monv[FRENZY_MONITORS_MAX]; +}; +struct frenzy_reslot { + ErlNifMutex* lock; + int stopped; + struct frenzy_resource* obj; + unsigned long alloc_cnt; + unsigned long release_cnt; + unsigned long dtor_cnt; +}; +static struct frenzy_reslot resv[FRENZY_RESOURCES_MAX]; + +static ERL_NIF_TERM monitor_frenzy_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + struct frenzy_proc { + ErlNifPid pid; + int is_free; + }; + static struct frenzy_proc procs[FRENZY_PROCS_MAX]; + static struct frenzy_proc* proc_refs[FRENZY_PROCS_MAX]; + static unsigned int nprocs, old_nprocs; + static ErlNifMutex* procs_lock; + static unsigned long spawn_cnt = 0; + static unsigned long kill_cnt = 0; + static unsigned long proc_histogram[FRENZY_PROCS_MAX]; + static int initialized = 0; + + static const unsigned int primes[] = {7, 13, 17, 19}; + + struct frenzy_resource* r; + struct frenzy_rand_bits rnd; + unsigned int op, inc, my_nprocs; + unsigned int mix; /* r->monv[] index */ + unsigned int rix; /* resv[] index */ + unsigned int pix; /* procs[] index */ + unsigned int ref_ix; /* proc_refs[] index */ + int self_pix, rv; + ERL_NIF_TERM retval = atom_error; + const ERL_NIF_TERM Op = argv[0]; + const ERL_NIF_TERM Rnd = argv[1]; + const ERL_NIF_TERM SelfPix = argv[2]; + const ERL_NIF_TERM NewPid = argv[3]; + + if (enif_is_atom(env, Op)) { + if (Op == atom_init) { + if (initialized || !enif_get_uint(env, Rnd, &frenzy_rand_bits_max)) + return enif_make_badarg(env); + + procs_lock = enif_mutex_create("nif_SUITE:monitor_frenzy.procs"); + nprocs = 0; + old_nprocs = 0; + for (pix = 0; pix < FRENZY_PROCS_MAX; pix++) { + proc_refs[pix] = &procs[pix]; + procs[pix].is_free = 1; + proc_histogram[pix] = 0; + } + for (rix = 0; rix < FRENZY_RESOURCES_MAX; rix++) { + resv[rix].lock = enif_mutex_create("nif_SUITE:monitor_frenzy.resv.lock"); + resv[rix].obj = NULL; + resv[rix].stopped = 0; + resv[rix].alloc_cnt = 0; + resv[rix].release_cnt = 0; + resv[rix].dtor_cnt = 0; + } + + /* Add self as first process */ + enif_self(env, &procs[0].pid); + procs[0].is_free = 0; + old_nprocs = ++nprocs; + + spawn_cnt = 1; + kill_cnt = 0; + initialized = 1; + return enif_make_uint(env, 0); /* SelfPix */ + } + else if (Op == atom_stats) { + ERL_NIF_TERM hist[FRENZY_PROCS_MAX]; + unsigned long res_alloc_cnt = 0; + unsigned long res_release_cnt = 0; + unsigned long res_dtor_cnt = 0; + for (ref_ix = 0; ref_ix < FRENZY_PROCS_MAX; ref_ix++) { + hist[ref_ix] = enif_make_ulong(env, proc_histogram[ref_ix]); + } + for (rix = 0; rix < FRENZY_RESOURCES_MAX; rix++) { + res_alloc_cnt += resv[rix].alloc_cnt; + res_release_cnt += resv[rix].release_cnt; + res_dtor_cnt += resv[rix].dtor_cnt; + } + + return + enif_make_list4(env, + enif_make_tuple2(env, enif_make_string(env, "proc_histogram", ERL_NIF_LATIN1), + enif_make_list_from_array(env, hist, FRENZY_PROCS_MAX)), + enif_make_tuple2(env, enif_make_string(env, "spawn_cnt", ERL_NIF_LATIN1), + enif_make_ulong(env, spawn_cnt)), + enif_make_tuple2(env, enif_make_string(env, "kill_cnt", ERL_NIF_LATIN1), + enif_make_ulong(env, kill_cnt)), + enif_make_tuple4(env, enif_make_string(env, "resource_alloc", ERL_NIF_LATIN1), + enif_make_ulong(env, res_alloc_cnt), + enif_make_ulong(env, res_release_cnt), + enif_make_ulong(env, res_dtor_cnt))); + + } + else if (Op == atom_stop && initialized) { /* stop all */ + + /* Release all resources */ + for (rix = 0; rix < FRENZY_RESOURCES_MAX; rix++) { + enif_mutex_lock(resv[rix].lock); + r = resv[rix].obj; + if (r) { + resv[rix].obj = NULL; + resv[rix].release_cnt++; + } + resv[rix].stopped = 1; + enif_mutex_unlock(resv[rix].lock); + if (r) + enif_release_resource(r); + } + + /* Remove and return all pids */ + retval = enif_make_list(env, 0); + enif_mutex_lock(procs_lock); + for (ref_ix = 0; ref_ix < nprocs; ref_ix++) { + assert(!proc_refs[ref_ix]->is_free); + retval = enif_make_list_cell(env, enif_make_pid(env, &proc_refs[ref_ix]->pid), + retval); + proc_refs[ref_ix]->is_free = 1; + } + kill_cnt += nprocs; + nprocs = 0; + old_nprocs = 0; + enif_mutex_unlock(procs_lock); + + return retval; + } + return enif_make_badarg(env); + } + + if (!enif_get_int(env, SelfPix, &self_pix) || + !enif_get_uint(env, Op, &op) || + !enif_get_uint(env, Rnd, &rnd.source)) + return enif_make_badarg(env); + + rnd.bits_consumed = 0; + switch (op) { + case 0: { /* add/remove process */ + ErlNifPid self; + enif_self(env, &self); + + ref_ix = rand_bits(&rnd, FRENZY_PROCS_MAX_BITS) % FRENZY_PROCS_MAX; + enif_mutex_lock(procs_lock); + if (procs[self_pix].is_free || procs[self_pix].pid.pid != self.pid) { + /* Some one already removed me */ + enif_mutex_unlock(procs_lock); + return atom_done; + } + if (ref_ix >= nprocs || nprocs < 2) { /* add process */ + ref_ix = nprocs++; + pix = proc_refs[ref_ix] - procs; + assert(procs[pix].is_free); + if (!enif_get_local_pid(env, NewPid, &procs[pix].pid)) + abort(); + procs[pix].is_free = 0; + spawn_cnt++; + proc_histogram[ref_ix]++; + old_nprocs = nprocs; + enif_mutex_unlock(procs_lock); + DBG_TRACE2("Add pid %T, nprocs = %u\n", NewPid, nprocs); + retval = enif_make_uint(env, pix); + } + else { /* remove process */ + pix = proc_refs[ref_ix] - procs; + if (pix == self_pix) { + ref_ix = (ref_ix + 1) % nprocs; + pix = proc_refs[ref_ix] - procs; + } + assert(procs[pix].pid.pid != self.pid); + assert(!procs[pix].is_free); + retval = enif_make_pid(env, &procs[pix].pid); + --nprocs; + assert(!proc_refs[nprocs]->is_free); + if (ref_ix != nprocs) { + struct frenzy_proc* tmp = proc_refs[ref_ix]; + proc_refs[ref_ix] = proc_refs[nprocs]; + proc_refs[nprocs] = tmp; + } + procs[pix].is_free = 1; + proc_histogram[nprocs]++; + kill_cnt++; + enif_mutex_unlock(procs_lock); + DBG_TRACE2("Removed pid %T, nprocs = %u\n", retval, nprocs); + } + break; + } + case 1: + case 2: /* create/delete/lookup resource */ + rix = rand_bits(&rnd, FRENZY_RESOURCES_MAX_BITS) % FRENZY_RESOURCES_MAX; + inc = primes[rand_bits(&rnd, 2)]; + while (enif_mutex_trylock(resv[rix].lock) == EBUSY) { + rix = (rix + inc) % FRENZY_RESOURCES_MAX; + } + if (resv[rix].stopped) { + retval = atom_done; + enif_mutex_unlock(resv[rix].lock); + break; + } + else if (resv[rix].obj == NULL) { + r = enif_alloc_resource(frenzy_resource_type, + sizeof(struct frenzy_resource)); + resv[rix].obj = r; + resv[rix].alloc_cnt++; + r->rix = rix; + for (mix = 0; mix < FRENZY_MONITORS_MAX; mix++) { + r->monv[mix].lock = enif_mutex_create("nif_SUITE:monitor_frenzy.monv.lock"); + r->monv[mix].state = MON_FREE; + r->monv[mix].use_cnt = 0; + r->monv[mix].pid.pid = 0; /* null-pid */ + } + DBG_TRACE2("New resource at r=%p rix=%u\n", r, rix); + } + else { + unsigned int resource_op = rand_bits(&rnd, 3); + r = resv[rix].obj; + if (resource_op == 0) { /* delete resource */ + resv[rix].obj = NULL; + resv[rix].release_cnt++; + enif_mutex_unlock(resv[rix].lock); + DBG_TRACE2("Delete resource at r=%p rix=%u\n", r, rix); + enif_release_resource(r); + retval = atom_ok; + break; + } + else if (resource_op == 1) { /* return resource */ + retval = enif_make_resource(env, r); + enif_mutex_unlock(resv[rix].lock); + break; + } + } + enif_keep_resource(r); + enif_mutex_unlock(resv[rix].lock); + + /* monitor/demonitor */ + + mix = rand_bits(&rnd, FRENZY_MONITORS_MAX_BITS) % FRENZY_MONITORS_MAX; + inc = primes[rand_bits(&rnd, 2)]; + while (enif_mutex_trylock(r->monv[mix].lock) == EBUSY) { + mix = (mix + inc) % FRENZY_MONITORS_MAX; + } + switch (r->monv[mix].state) { + case MON_FREE: + case MON_FREE_DOWN: + case MON_FREE_DEMONITOR: { /* do monitor */ + /* + * Use an old possibly larger value of 'nprocs', to increase + * probability of monitoring an already terminated process + */ + my_nprocs = old_nprocs; + if (my_nprocs > 0) { + int save_state = r->monv[mix].state; + ref_ix = rand_bits(&rnd, FRENZY_PROCS_MAX_BITS) % my_nprocs; + pix = proc_refs[ref_ix] - procs; + r->monv[mix].pid.pid = procs[pix].pid.pid; /* "atomic" */ + r->monv[mix].state = MON_TRYING; + rv = enif_monitor_process(env, r, &r->monv[mix].pid, &r->monv[mix].mon); + if (rv == 0) { + r->monv[mix].state = MON_ACTIVE; + r->monv[mix].use_cnt++; + DBG_TRACE3("Monitor from r=%p rix=%u to %T\n", + r, r->rix, r->monv[mix].pid.pid); + } + else { + r->monv[mix].state = save_state; + DBG_TRACE4("Monitor from r=%p rix=%u to %T FAILED with %d\n", + r, r->rix, r->monv[mix].pid.pid, rv); + } + retval = enif_make_int(env,rv); + } + else { + DBG_TRACE0("No pids to monitor\n"); + retval = atom_ok; + } + break; + } + case MON_ACTIVE: /* do demonitor */ + rv = enif_demonitor_process(env, r, &r->monv[mix].mon); + if (rv == 0) { + DBG_TRACE3("Demonitor from r=%p rix=%u to %T\n", + r, r->rix, r->monv[mix].pid.pid); + r->monv[mix].state = MON_FREE_DEMONITOR; + } + else { + DBG_TRACE4("Demonitor from r=%p rix=%u to %T FAILED with %d\n", + r, r->rix, r->monv[mix].pid.pid, rv); + r->monv[mix].state = MON_PENDING; + } + retval = enif_make_int(env,rv); + break; + + case MON_PENDING: /* waiting for 'down' callback, do nothing */ + retval = atom_ok; + break; + default: + abort(); + break; + } + enif_mutex_unlock(r->monv[mix].lock); + enif_release_resource(r); + break; + + case 3: /* no-op */ + retval = atom_ok; + break; + } + + { + int percent = (rand_bits(&rnd, 6) + 1) * 2; /* 2 to 128 */ + if (percent <= 100) + enif_consume_timeslice(env, percent); + } + + return retval; +} + +static void frenzy_resource_dtor(ErlNifEnv* env, void* obj) +{ + struct frenzy_resource* r = (struct frenzy_resource*) obj; + unsigned int mix; + + DBG_TRACE2("DTOR r=%p rix=%u\n", r, r->rix); + + enif_mutex_lock(resv[r->rix].lock); + resv[r->rix].dtor_cnt++; + enif_mutex_unlock(resv[r->rix].lock); + + for (mix = 0; mix < FRENZY_MONITORS_MAX; mix++) { + assert(r->monv[mix].state != MON_PENDING); + enif_mutex_destroy(r->monv[mix].lock); + r->monv[mix].lock = NULL; + } + +} + +static void frenzy_resource_down(ErlNifEnv* env, void* obj, ErlNifPid* pid, + ErlNifMonitor* mon) +{ + struct frenzy_resource* r = (struct frenzy_resource*) obj; + unsigned int mix; + + DBG_TRACE3("DOWN pid=%T, r=%p rix=%u\n", pid->pid, r, r->rix); + + for (mix = 0; mix < FRENZY_MONITORS_MAX; mix++) { + int state1 = r->monv[mix].state; + /* First do dirty access of pid and state without the lock */ + if (r->monv[mix].pid.pid == pid->pid && state1 >= MON_TRYING) { + int state2; + enif_mutex_lock(r->monv[mix].lock); + state2 = r->monv[mix].state; + if (state2 >= MON_ACTIVE) { + if (enif_compare_monitors(mon, &r->monv[mix].mon) == 0) { + r->monv[mix].state = MON_FREE_DOWN; + enif_mutex_unlock(r->monv[mix].lock); + return; + } + } + else { + assert(state2 != MON_TRYING); + assert(state1 == MON_TRYING || /* racing monitor failed */ + state2 == MON_FREE_DEMONITOR || /* racing demonitor */ + state2 == MON_FREE_DOWN); /* racing down */ + } + enif_mutex_unlock(r->monv[mix].lock); + } + } + enif_fprintf(stderr, "DOWN called for unknown monitor\n"); + abort(); +} + +/*********** testing ioq ************/ + +static void ioq_resource_dtor(ErlNifEnv* env, void* obj) { + +} + +#ifndef __WIN32__ +static int writeiovec(ErlNifEnv *env, ERL_NIF_TERM term, ERL_NIF_TERM *tail, ErlNifIOQueue *q, int fd) { + ErlNifIOVec vec, *iovec = &vec; + SysIOVec *sysiovec; + int saved_errno; + int iovcnt, n; + + if (!enif_inspect_iovec(env, 64, term, tail, &iovec)) + return -2; + + if (enif_ioq_size(q) > 0) { + /* If the I/O queue contains data we enqueue the iovec and then + peek the data to write out of the queue. */ + if (!enif_ioq_enqv(q, iovec, 0)) + return -3; + + sysiovec = enif_ioq_peek(q, &iovcnt); + } else { + /* If the I/O queue is empty we skip the trip through it. */ + iovcnt = iovec->iovcnt; + sysiovec = iovec->iov; + } + + /* Attempt to write the data */ + n = writev(fd, sysiovec, iovcnt); + saved_errno = errno; + + if (enif_ioq_size(q) == 0) { + /* If the I/O queue was initially empty we enqueue any + remaining data into the queue for writing later. */ + if (n >= 0 && !enif_ioq_enqv(q, iovec, n)) + return -3; + } else { + /* Dequeue any data that was written from the queue. */ + if (n > 0 && !enif_ioq_deq(q, n, NULL)) + return -4; + } + + /* return n, which is either number of bytes written or -1 if + some error happened */ + errno = saved_errno; + return n; +} +#endif + +static ERL_NIF_TERM ioq(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + struct ioq_resource *ioq; + ERL_NIF_TERM ret; + if (enif_is_identical(argv[0], enif_make_atom(env, "create"))) { + ErlNifIOQueue *q = enif_ioq_create(ERL_NIF_IOQ_NORMAL); + ioq = (struct ioq_resource *)enif_alloc_resource(ioq_resource_type, + sizeof(*ioq)); + ioq->q = q; + ret = enif_make_resource(env, ioq); + enif_release_resource(ioq); + return ret; + } else if (enif_is_identical(argv[0], enif_make_atom(env, "inspect"))) { + ErlNifIOVec vec, *iovec = NULL; + int i, iovcnt; + ERL_NIF_TERM *elems, tail, list; + ErlNifEnv *myenv = NULL; + + if (enif_is_identical(argv[2], enif_make_atom(env, "use_stack"))) + iovec = &vec; + if (enif_is_identical(argv[3], enif_make_atom(env, "use_env"))) + myenv = env; + if (!enif_inspect_iovec(myenv, ~(size_t)0, argv[1], &tail, &iovec)) + return enif_make_badarg(env); + + iovcnt = iovec->iovcnt; + elems = enif_alloc(sizeof(ERL_NIF_TERM) * iovcnt); + + for (i = 0; i < iovcnt; i++) { + ErlNifBinary bin; + if (!enif_alloc_binary(iovec->iov[i].iov_len, &bin)) { + enif_free_iovec(iovec); + enif_free(elems); + return enif_make_badarg(env); + } + memcpy(bin.data, iovec->iov[i].iov_base, iovec->iov[i].iov_len); + elems[i] = enif_make_binary(env, &bin); + } + + if (!myenv) + enif_free_iovec(iovec); + + list = enif_make_list_from_array(env, elems, iovcnt); + enif_free(elems); + return list; + } else { + unsigned skip; + if (!enif_get_resource(env, argv[1], ioq_resource_type, (void**)&ioq) + || !ioq->q) + return enif_make_badarg(env); + + if (enif_is_identical(argv[0], enif_make_atom(env, "example"))) { +#ifndef __WIN32__ + int fd[2], res = 0, cnt = 0, queue_cnt; + ERL_NIF_TERM tail; + char buff[255]; + pipe(fd); + fcntl(fd[0], F_SETFL, fcntl(fd[0], F_GETFL) | O_NONBLOCK); + fcntl(fd[1], F_SETFL, fcntl(fd[1], F_GETFL) | O_NONBLOCK); + + /* Write until the pipe buffer is full, which should result in data + * being queued up. */ + for (res = 0; res >= 0; ) { + cnt += res; + res = writeiovec(env, argv[2], &tail, ioq->q, fd[1]); + } + + /* Flush the queue while reading from the other end of the pipe. */ + tail = enif_make_list(env, 0); + while (enif_ioq_size(ioq->q) > 0) { + res = writeiovec(env, tail, &tail, ioq->q, fd[1]); + + if (res < 0 && errno != EAGAIN) { + break; + } else if (res > 0) { + cnt += res; + } + + for (res = 0; res >= 0; ) { + cnt -= res; + res = read(fd[0], buff, sizeof(buff)); + } + } + + close(fd[0]); + close(fd[1]); + + /* Check that we read as much as we wrote */ + if (cnt == 0 && enif_ioq_size(ioq->q) == 0) + return enif_make_atom(env, "true"); + + return enif_make_int(env, cnt); +#else + return enif_make_atom(env, "true"); +#endif + } + if (enif_is_identical(argv[0], enif_make_atom(env, "destroy"))) { + enif_ioq_destroy(ioq->q); + ioq->q = NULL; + return enif_make_atom(env, "false"); + } else if (enif_is_identical(argv[0], enif_make_atom(env, "enqv"))) { + ErlNifIOVec vec, *iovec = &vec; + ERL_NIF_TERM tail; + + if (!enif_get_uint(env, argv[3], &skip)) + return enif_make_badarg(env); + if (!enif_inspect_iovec(env, ~0ul, argv[2], &tail, &iovec)) + return enif_make_badarg(env); + if (!enif_ioq_enqv(ioq->q, iovec, skip)) + return enif_make_badarg(env); + + return enif_make_atom(env, "true"); + } else if (enif_is_identical(argv[0], enif_make_atom(env, "enqb"))) { + ErlNifBinary bin; + if (!enif_get_uint(env, argv[3], &skip) || + !enif_inspect_binary(env, argv[2], &bin)) + return enif_make_badarg(env); + + if (!enif_ioq_enq_binary(ioq->q, &bin, skip)) + return enif_make_badarg(env); + + return enif_make_atom(env, "true"); + } else if (enif_is_identical(argv[0], enif_make_atom(env, "enqbraw"))) { + ErlNifBinary bin; + ErlNifBinary localbin; + int i; + if (!enif_get_uint(env, argv[3], &skip) || + !enif_inspect_binary(env, argv[2], &bin) || + !enif_alloc_binary(bin.size, &localbin)) + return enif_make_badarg(env); + + memcpy(localbin.data, bin.data, bin.size); + i = enif_ioq_enq_binary(ioq->q, &localbin, skip); + if (!i) + return enif_make_badarg(env); + else + return enif_make_atom(env, "true"); + } else if (enif_is_identical(argv[0], enif_make_atom(env, "peek_head"))) { + ERL_NIF_TERM head_term; + + if(enif_ioq_peek_head(env, ioq->q, NULL, &head_term)) { + return enif_make_tuple2(env, + enif_make_atom(env, "true"), head_term); + } + + return enif_make_atom(env, "false"); + } else if (enif_is_identical(argv[0], enif_make_atom(env, "peek"))) { + int iovlen, num, i, off = 0; + SysIOVec *iov = enif_ioq_peek(ioq->q, &iovlen); + ErlNifBinary bin; + + if (!enif_get_int(env, argv[2], &num) || !enif_alloc_binary(num, &bin)) + return enif_make_badarg(env); + + for (i = 0; i < iovlen && num > 0; i++) { + int to_copy = num < iov[i].iov_len ? num : iov[i].iov_len; + memcpy(bin.data + off, iov[i].iov_base, to_copy); + num -= to_copy; + off += to_copy; + } + + return enif_make_binary(env, &bin); + } else if (enif_is_identical(argv[0], enif_make_atom(env, "deq"))) { + int num; + size_t sz; + ErlNifUInt64 sz64; + if (!enif_get_int(env, argv[2], &num)) + return enif_make_badarg(env); + + if (!enif_ioq_deq(ioq->q, num, &sz)) + return enif_make_badarg(env); + + sz64 = sz; + + return enif_make_uint64(env, sz64); + } else if (enif_is_identical(argv[0], enif_make_atom(env, "size"))) { + ErlNifUInt64 size = enif_ioq_size(ioq->q); + return enif_make_uint64(env, size); + } + } + + return enif_make_badarg(env); +} static ErlNifFunc nif_funcs[] = { @@ -2026,6 +3497,7 @@ static ErlNifFunc nif_funcs[] = {"tuple_2_list", 1, tuple_2_list}, {"is_identical",2,is_identical}, {"compare",2,compare}, + {"hash_nif",3,hash_nif}, {"many_args_100", 100, many_args_100}, {"clone_bin", 1, clone_bin}, {"make_sub_bin", 3, make_sub_bin}, @@ -2039,6 +3511,7 @@ static ErlNifFunc nif_funcs[] = {"make_resource", 1, make_resource}, {"get_resource", 2, get_resource}, {"release_resource", 1, release_resource}, + {"release_resource_from_thread", 1, release_resource_from_thread}, {"last_resource_dtor_call", 0, last_resource_dtor_call}, {"make_new_resource", 2, make_new_resource}, {"check_is", 11, check_is}, @@ -2091,7 +3564,30 @@ static ErlNifFunc nif_funcs[] = {"term_to_binary_nif", 2, term_to_binary}, {"binary_to_term_nif", 3, binary_to_term}, {"port_command_nif", 2, port_command}, - {"format_term_nif", 2, format_term} + {"format_term_nif", 2, format_term}, + {"select_nif", 5, select_nif}, +#ifndef __WIN32__ + {"pipe_nif", 0, pipe_nif}, + {"write_nif", 2, write_nif}, + {"dupe_resource_nif", 1, dupe_resource_nif}, + {"read_nif", 2, read_nif}, + {"is_closed_nif", 1, is_closed_nif}, + {"clear_select_nif", 1, clear_select_nif}, +#endif + {"last_fd_stop_call", 0, last_fd_stop_call}, + {"alloc_monitor_resource_nif", 0, alloc_monitor_resource_nif}, + {"monitor_process_nif", 4, monitor_process_nif}, + {"demonitor_process_nif", 2, demonitor_process_nif}, + {"compare_monitors_nif", 2, compare_monitors_nif}, + {"monitor_frenzy_nif", 4, monitor_frenzy_nif}, + {"whereis_send", 3, whereis_send}, + {"whereis_term", 2, whereis_term}, + {"whereis_thd_lookup", 2, whereis_thd_lookup}, + {"whereis_thd_result", 1, whereis_thd_result}, + {"ioq_nif", 1, ioq}, + {"ioq_nif", 2, ioq}, + {"ioq_nif", 3, ioq}, + {"ioq_nif", 4, ioq} }; -ERL_NIF_INIT(nif_SUITE,nif_funcs,load,reload,upgrade,unload) +ERL_NIF_INIT(nif_SUITE,nif_funcs,load,NULL,upgrade,unload) |