/usr/include/libtgvoip/BlockingQueue.h is in libtgvoip-dev 1.0.3-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// libtgvoip is free and unencumbered public domain software.
// For more information, see http://unlicense.org or the UNLICENSE file
// you should have received with this source code distribution.
//
#ifndef LIBTGVOIP_BLOCKINGQUEUE_H
#define LIBTGVOIP_BLOCKINGQUEUE_H
#include <stdlib.h>
#include <list>
#include "threading.h"
using namespace std;
namespace tgvoip{
template<typename T>
class BlockingQueue{
public:
BlockingQueue(size_t capacity) : semaphore(capacity, 0){
this->capacity=capacity;
overflowCallback=NULL;
init_mutex(mutex);
};
~BlockingQueue(){
semaphore.Release();
free_mutex(mutex);
}
void Put(T thing){
MutexGuard sync(mutex);
queue.push_back(thing);
bool didOverflow=false;
while(queue.size()>capacity){
didOverflow=true;
if(overflowCallback){
overflowCallback(queue.front());
queue.pop_front();
}else{
abort();
}
}
if(!didOverflow)
semaphore.Release();
}
T GetBlocking(){
semaphore.Acquire();
MutexGuard sync(mutex);
T r=GetInternal();
return r;
}
T Get(){
MutexGuard sync(mutex);
if(queue.size()>0)
semaphore.Acquire();
T r=GetInternal();
return r;
}
unsigned int Size(){
return queue.size();
}
void PrepareDealloc(){
}
void SetOverflowCallback(void (*overflowCallback)(T)){
this->overflowCallback=overflowCallback;
}
private:
T GetInternal(){
//if(queue.size()==0)
// return NULL;
T r=queue.front();
queue.pop_front();
return r;
}
list<T> queue;
size_t capacity;
//tgvoip_lock_t lock;
Semaphore semaphore;
tgvoip_mutex_t mutex;
void (*overflowCallback)(T);
};
}
#endif //LIBTGVOIP_BLOCKINGQUEUE_H
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