path: root/erts/emulator/beam/erl_lock_flags.c

/*
 * %CopyrightBegin%
 *
 * Copyright Ericsson AB 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.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * %CopyrightEnd%
 */

#ifdef HAVE_CONFIG_H
#  include "config.h"
#endif

#include "erl_lock_flags.h"

const char *erts_lock_flags_get_type_name(erts_lock_flags_t flags) {
    switch(flags & ERTS_LOCK_FLAGS_MASK_TYPE) {
        case ERTS_LOCK_FLAGS_TYPE_PROCLOCK:
            return "proclock";
        case ERTS_LOCK_FLAGS_TYPE_MUTEX:
            if(flags & ERTS_LOCK_FLAGS_PROPERTY_READ_WRITE) {
                return "rw_mutex";
            }

            return "mutex";
        case ERTS_LOCK_FLAGS_TYPE_SPINLOCK:
            if(flags & ERTS_LOCK_FLAGS_PROPERTY_READ_WRITE) {
                return "rw_spinlock";
            }

            return "spinlock";
        default:
            return "garbage";
    }
}

const char *erts_lock_options_get_short_desc(erts_lock_options_t options) {
    switch(options) {
        case ERTS_LOCK_OPTIONS_RDWR:
            return "rw";
        case ERTS_LOCK_OPTIONS_READ:
            return "r";
        case ERTS_LOCK_OPTIONS_WRITE:
            return "w";
        default:
            return "none";
    }
}