common.c

/*
* Copyright 2010-2017 Amazon.com, Inc. or its affiliates. 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.
* A copy of the License is located at
*
*  http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file 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.
*/

#include <aws/common/common.h>
#include <stdlib.h>

/* turn off unused named parameter warning on msvc.*/
#ifdef _MSC_VER 
#pragma warning( push )
#pragma warning( disable : 4100)
#endif

void *default_malloc(struct aws_allocator *allocator, size_t size) {
    return malloc(size);
}

void default_free(struct aws_allocator *allocator, void *ptr) {
    free(ptr);
}

static struct aws_allocator default_allocator = {
        .mem_acquire = default_malloc,
        .mem_release = default_free
};

struct aws_allocator *aws_default_allocator() {
    return &default_allocator;
}

void *aws_mem_acquire(struct aws_allocator *allocator, size_t size) {
    return allocator->mem_acquire(allocator, size);
}

void aws_mem_release(struct aws_allocator *allocator, void *ptr) {
    allocator->mem_release(allocator, ptr);
}

static int8_t error_strings_loaded = 0;

static struct aws_error_info errors[] = {
        AWS_DEFINE_ERROR_INFO(aws_error_success, AWS_ERROR_SUCCESS, "success", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_oom, AWS_ERROR_OOM, "out-of-memory", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_overflow, AWS_ERROR_OVERFLOW_DETECTED, "fixed size value overflow was detected", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_invalid_buffer_size, AWS_ERROR_INVALID_BUFFER_SIZE, "invalid buffer size", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_invalid_hex_str, AWS_ERROR_INVALID_HEX_STR, "invalid hex string", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_invalid_base64_str, AWS_ERROR_INVALID_BASE64_STR, "invalid base64 string", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_invalid_index, AWS_ERROR_INVALID_INDEX, "invalid index for list access", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_thread_invalid_settings, AWS_ERROR_THREAD_INVALID_SETTINGS, "invalid thread settings", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_thread_insufficient_resource, AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE, "thread, insufficient resources", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_thread_no_permissions, AWS_ERROR_THREAD_NO_PERMISSIONS, "insufficient permissions for thread operation", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_thread_not_joinable, AWS_ERROR_THREAD_NOT_JOINABLE, "thread not join-able", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_thread_no_such_thread_id, AWS_ERROR_THREAD_NO_SUCH_THREAD_ID, "no such thread id", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_thread_deadlock_detected, AWS_ERROR_THREAD_DEADLOCK_DETECTED, "deadlock detected", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_mutex_not_init, AWS_ERROR_MUTEX_NOT_INIT, "mutex not initialized", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_mutex_timeout, AWS_ERROR_MUTEX_TIMEOUT, "mutex operation timed out", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_mutex_caller_not_owner, AWS_ERROR_MUTEX_CALLER_NOT_OWNER, "the caller of a mutex operation was not the owner", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_mutex_failed, AWS_ERROR_MUTEX_FAILED, "mutex operation failed", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_clock_failure, AWS_ERROR_CLOCK_FAILURE, "clock get ticks operation failed", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_list_empty, AWS_ERROR_LIST_EMPTY, "empty list", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_list_dest_copy_too_small, AWS_ERROR_LIST_DEST_COPY_TOO_SMALL, "destination of list copy is too small", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_list_exceeds_max_size, AWS_ERROR_LIST_EXCEEDS_MAX_SIZE, "a requested operation on a list would exceed it's max size.", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_list_static_mode_cant_shrink, AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK, "attempt to shrink a list in static mode", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_priority_queue_full, AWS_ERROR_PRIORITY_QUEUE_FULL, "attempt to add items to a full preallocated queue in static mode.", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_priority_queue_empty, AWS_ERROR_PRIORITY_QUEUE_EMPTY, "attempt to pop an item from an empty queue.", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_task_scheduler_no_more_tasks, AWS_ERROR_TASK_SCHEDULER_NO_MORE_TASKS, "current task is the last one. next_run_time not populated.", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_task_scheduler_no_tasks, AWS_ERROR_TASK_SCHEDULER_NO_TASKS, "no tasks scheduled available.", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_task_scheduler_no_ready_tasks, AWS_ERROR_TASK_SCHEDULER_NO_READY_TASKS, "none of the tasks scheduled is due to run now.", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_task_scheduler_xthread_access, AWS_ERROR_TASK_SCHEDULER_ILLEGAL_XTHREAD_ACCESS, "Scheduler is being used from a thread different from its owner.", AWS_LIB_NAME),
        AWS_DEFINE_ERROR_INFO(aws_error_hashtbl_item_not_found, AWS_ERROR_HASHTBL_ITEM_NOT_FOUND, "Item not found in hash table", AWS_LIB_NAME)
};

static struct aws_error_info_list list = {
       .error_list = errors,
        .count = sizeof(errors) / sizeof(struct aws_error_info),
};

void aws_load_error_strings(void) {
    if(!error_strings_loaded) {
        error_strings_loaded = 1;
        aws_register_error_info(&list);
    }
}