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use std::time::Instant;
use crate::reader::{Reader};
pub fn init(reader:&mut Reader,end_cursor:usize){
if reader.buffer.len() == 0{
return;
}
if !reader.build_map{
reader.buffer = reader.buffer.split_off(end_cursor);
return;
}
// if end_cursor < 100{
// crate::workers::print_range(&reader.buffer, 0, end_cursor);
// } else {
// crate::workers::print_range(&reader.buffer, 0, 100);
// }
// println!("corrupt len : {:?}",end_cursor);
//make pointers
let mut counter:usize = 0;
let mut last:u8 = 0;
let pending = reader.buffer.split_off(end_cursor);
for i in &reader.buffer{
if i != &0 && last == 0{
if counter>0{
let empty_index = reader.empty_index;
let empty_start = reader.map_cursor;
let empty_end = reader.map_cursor+counter-1;
match reader.empty_map.insert(empty_index,(counter,(empty_start,empty_end))){
Some(_)=>{},
None=>{}
}
match reader.empty_start.insert(empty_start,empty_index){
Some(_)=>{},
None=>{}
}
match reader.empty_end.insert(empty_end,empty_index){
Some(_)=>{},
None=>{}
}
reader.empty_index += 1;
reader.map_cursor += counter;
reader.buffer_cursor += counter;
counter = 0;
}
last = 1;counter += 1;
} else
if i == &0 && last == 1{
if counter>0{
reader.corrupt.push((counter,(reader.map_cursor,reader.map_cursor+counter-1)));
reader.map_cursor += counter;
reader.buffer_cursor += counter;
counter = 0;
}
last = 0;counter += 1;
}
else if i == &0 && last == 0{counter += 1;}
else if i != &0 && last == 1{counter += 1;}
}
reader.buffer = pending;
// println!("unhanled partion looped");
if counter>0{
if last == 0{
let empty_index = reader.empty_index;
let empty_start = reader.map_cursor;
let empty_end = reader.map_cursor+counter-1;
match reader.empty_map.insert(empty_index,(counter,(empty_start,empty_end))){
Some(_)=>{},
None=>{}
}
match reader.empty_start.insert(empty_start,empty_index){
Some(_)=>{},
None=>{}
}
match reader.empty_end.insert(empty_end,empty_index){
Some(_)=>{},
None=>{}
}
reader.empty_index += 1;
reader.map_cursor += counter;
reader.buffer_cursor += counter;
} else {
reader.corrupt.push((counter,(reader.map_cursor,reader.map_cursor+counter-1)));
reader.map_cursor += counter;
reader.buffer_cursor += counter;
}
}
// println!("\nc : {:?} {:?}",reader.map_cursor,counter);
reader.buffer_cursor = 0;
}
pub fn empty_counter(reader:&mut Reader){
// println!("empty_counter initiated");
//count zeros
let count_time = Instant::now();
let mut counter:usize = 0;
for i in &reader.buffer{
if i > &0{
// println!("break at : {:?}",i);
break;
} else {
counter += 1;
}
}
// println!("count_time : {:?}",count_time.elapsed());
reader.calc.count_time += count_time.elapsed().as_nanos();
if counter > 0 {counter -= 1};
// if reader.map_cursor >= 11199698 && reader.map_cursor < 11200000+50{
// println!("king kong : {:?}",counter);
// }
if counter <= 1{
return;
}
// println!("buffer - : {:?}",reader.buffer);
// println!("counter : {:?}",counter);
//make empty_end_pointers
let empty_end_pointers_time = Instant::now();
let empty_start_at = reader.map_cursor;
let empty_end_at = empty_start_at + counter - 1;
let empty_len = empty_end_at - empty_start_at;
// println!("empty_end_pointers_time : {:?}",empty_end_pointers_time.elapsed());
reader.calc.empty_end_pointers_time += empty_end_pointers_time.elapsed().as_nanos();
//update_reader
let update_reader_time = Instant::now();
reader.buffer = reader.buffer.split_off(counter);
// let new_buffer = reader.buffer.split_off(counter);
// reader.buffer = new_buffer;
// for _ in 0..counter{
// reader.buffer.remove(0);
// }
reader.map_cursor = empty_end_at + 1;
reader.buffer_cursor = 0;
// println!("update_reader_time : {:?}",update_reader_time.elapsed());
reader.calc.update_reader_time += update_reader_time.elapsed().as_nanos();
// println!("buffer + : {:?}",reader.buffer);
//find if a empty_countinues
let empty_countinues_time = Instant::now();
let mut previous_empty_found:bool = false;
let mut previous_empty_index:usize = 0;
if empty_start_at>0{
match reader.empty_end.remove(&(empty_start_at-1)){
Some(v)=>{
previous_empty_found = true;
previous_empty_index = v.clone();
},
None=>{}
}
}
// println!("empty_countinues_time : {:?}",empty_countinues_time.elapsed());
reader.calc.empty_countinues_time += empty_countinues_time.elapsed().as_nanos();
if previous_empty_found{
let previous_empty_found_time = Instant::now();
match reader.empty_map.get_mut(&previous_empty_index){
Some(previous_index)=>{
// println!("previous_index old : {:?}",previous_index);
previous_index.0 = empty_end_at - previous_index.1.0 + 1;
previous_index.1.1 = empty_end_at;
// println!("previous_index new : {:?}",previous_index);
// println!("new_len : {:?}",new_len);
match reader.empty_end.insert(previous_index.1.1,previous_empty_index){
Some(_)=>{},
None=>{}
}
},
None=>{}
}
// println!("previous_empty_found_time : {:?}",previous_empty_found_time.elapsed());
// println!("total_empty_time : {:?}",count_time.elapsed());
reader.calc.previous_empty_found_time += previous_empty_found_time.elapsed().as_nanos();
reader.calc.total_empty_time += count_time.elapsed().as_nanos();
return;
} else {
//no previous empty found
let previous_empty_not_found_time = Instant::now();
match reader.empty_map.insert(reader.empty_index,(empty_len,(empty_start_at,empty_end_at))){
Some(_)=>{},
None=>{}
}
match reader.empty_start.insert(empty_start_at,reader.empty_index){
Some(_)=>{},
None=>{}
}
match reader.empty_end.insert(empty_end_at,reader.empty_index){
Some(_)=>{},
None=>{}
}
reader.empty_index += 1;
// println!("previous_empty_not_found_time : {:?}",previous_empty_not_found_time.elapsed());
// println!("total_empty_time : {:?}",count_time.elapsed());
reader.calc.previous_empty_not_found_time += previous_empty_not_found_time.elapsed().as_nanos();
reader.calc.total_empty_time += count_time.elapsed().as_nanos();
return;
}
//make mepty map entires
// println!("buffer : {:?}",reader.buffer);
// println!("empty_start_at : {}",empty_start_at);
// println!("empty_end_at : {}",empty_end_at);
// println!("counter : {}",counter);
// println!("reader.buffer_cursor : {}",reader.buffer_cursor);
// println!("buffer : {:?}",reader.buffer);
}