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//-----------------------------------------------------------------------------
// Name: ramhandler.cpp
// Developer: Wolfire Games LLC
// Description:
// License: Read below
//-----------------------------------------------------------------------------
//
// Copyright 2022 Wolfire Games LLC
//
// 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.
//
//-----------------------------------------------------------------------------
#include <Logging/ramhandler.h>
#include <iostream>
#include <algorithm>
#include <cassert>
#include <Utility/strings.h>
RamHandler::RamHandler() : is_locked(false) {
data = malloc(64 * 2048);
mem.Init(data, 2048, 64);
mem.no_log = true;
}
RamHandler::~RamHandler() {
free(data);
data = NULL;
}
void RamHandler::DeleteMessage(uint32_t index) {
if( row_instances[index].data != NULL ) {
mem.Free(row_instances[index].data);
row_instances[index].data = NULL;
row_instance_count--;
}
}
void RamHandler::Log( LogSystem::LogType type, int row, const char* filename, const char* cat, const char* message_prefix, const char* message ) {
log_mutex_.lock();
unsigned next_index = (row_instance_pos + 1) % ROW_INSTANCE_SIZE;
unsigned delete_index_offset = 0;
DeleteMessage(next_index);
size_t msg_size = strlen(message)+1;
void* new_mem = NULL;
while(new_mem == NULL) {
new_mem = mem.Alloc(msg_size);
if(new_mem) {
memcpy(new_mem,message,msg_size);
row_instances[next_index].data = (uint8_t*)new_mem;
row_instances[next_index].type = type;
strscpy((char*)row_instances[next_index].prefix,cat,PREFIX_LENGTH);
strscpy((char*)row_instances[next_index].filename,filename,FILENAME_LENGTH);
row_instances[next_index].row = row;
row_instance_count++;
row_instance_pos = next_index;
} else if(row_instance_count > 0){
delete_index_offset++;
DeleteMessage((next_index + delete_index_offset) % ROW_INSTANCE_SIZE);
} else {
std::cerr << "Unable to allocate memory for log-line" << std::endl;
break;
}
}
log_mutex_.unlock();
}
void RamHandler::Flush() {
}
void RamHandler::Lock() {
assert(is_locked == false);
is_locked = true;
log_mutex_.lock();
}
void RamHandler::Unlock() {
assert(is_locked == true);
is_locked = false;
log_mutex_.unlock();
}
RamHandlerLogRow RamHandler::GetLog( unsigned index ) {
assert(is_locked);
return row_instances[(row_instance_pos - row_instance_count + 1 + index) % ROW_INSTANCE_SIZE];
}
unsigned RamHandler::GetCount() {
assert(is_locked);
return row_instance_count;
}
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