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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB and Kjell Winblad 2019. 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%
*/
/*
* Author: Kjell Winblad
*/
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include "ycf_utils.h"
#include "lib/simple_c_gc/simple_c_gc.h"
#include <stdint.h>
bool ycf_use_gc = false;
bool ycf_track_memory = false;
size_t ycf_memory_usage = 0;
size_t ycf_max_memory_usage = 0;
void ycf_enable_gc(){
ycf_use_gc = true;
}
void ycf_enable_memory_tracking(){
ycf_track_memory = true;
}
void ycf_malloc_log(char* log_file, char* log_entry_id) {
FILE* out = fopen(log_file, "a");
fprintf(out,
"(%s)\nMax memory consumption %zu bytes ~ %zu kilo bytes ~ %zu mega bytes (after=%zu)\n",
log_entry_id,
ycf_max_memory_usage,
ycf_max_memory_usage / 1000,
ycf_max_memory_usage / 1000000,
ycf_memory_usage);
fclose(out);
}
void* ycf_raw_malloc(size_t size) {
if (ycf_track_memory) {
void* block = malloc(size + sizeof(intptr_t));
intptr_t* size_ptr = block;
*size_ptr = size + sizeof(intptr_t);
ycf_memory_usage = ycf_memory_usage + size + sizeof(intptr_t);
if (ycf_memory_usage > ycf_max_memory_usage) {
ycf_max_memory_usage = ycf_memory_usage;
}
if(block == NULL) {
fprintf(stderr, "ycf_malloc failed: is there enough memory in the machine?\n");
exit(1);
}
return (void*)(((char*)block) + sizeof(intptr_t));
} else {
void* block = malloc(size);
if(block == NULL) {
fprintf(stderr, "ycf_malloc failed: is there enough memory in the machine?\n");
exit(1);
}
return block;
}
}
void* ycf_malloc(size_t size) {
if (ycf_use_gc) {
return scgc_new(size);
} else {
return ycf_raw_malloc(size);
}
}
void ycf_free(void* to_free) {
if (ycf_track_memory) {
char* to_free_cp = to_free;
char* start = to_free_cp - sizeof(intptr_t);
intptr_t* size_ptr = (intptr_t*)start;
ycf_memory_usage = ycf_memory_usage - *size_ptr;
free(start);
} else {
free(to_free);
}
}
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