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Diffstat (limited to 'src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_channels/tlm_fifo/circular_buffer.h')
-rw-r--r--src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_channels/tlm_fifo/circular_buffer.h343
1 files changed, 165 insertions, 178 deletions
diff --git a/src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_channels/tlm_fifo/circular_buffer.h b/src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_channels/tlm_fifo/circular_buffer.h
index 50309e31b..c00fe4881 100644
--- a/src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_channels/tlm_fifo/circular_buffer.h
+++ b/src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_channels/tlm_fifo/circular_buffer.h
@@ -17,252 +17,239 @@
*****************************************************************************/
-//
-// To the LRM writer : this class is purely an artifact of the implementation.
-//
-
-#ifndef __CIRCULAR_BUFFER_H__
-#define __CIRCULAR_BUFFER_H__
+#ifndef \
+ __TLM_CORE_TLM_1_TLM_REQ_RSP_TLM_CHANNELS_TLM_FIFO_CIRCULAR_BUFFER_H__
+#define \
+ __TLM_CORE_TLM_1_TLM_REQ_RSP_TLM_CHANNELS_TLM_FIFO_CIRCULAR_BUFFER_H__
#include <iostream>
-namespace tlm {
+namespace tlm
+{
-template < typename T >
+template <typename T>
class circular_buffer
{
-public:
-
- explicit
- circular_buffer( int size = 0 );
- ~circular_buffer();
-
- void resize( int size );
- void clear();
-
- T read();
- void write( const T & );
-
- bool is_empty() const { return used() == 0; }
- bool is_full() const { return free() == 0; }
-
- int size() const { return m_size; }
- int used() const { return m_used; }
- int free() const { return m_free; }
-
- const T& read_data() const
- { return buf_read( m_buf, m_ri ); }
-
- const T& peek_data( int i ) const
- { return buf_read( m_buf, (m_ri + i) % size() ); }
-
- T & poke_data( int i )
- { return buf_read( m_buf , (m_wi + i) % size() ); }
-
- void debug() const;
-
-private:
- void increment_write_pos( int i = 1 );
- void increment_read_pos( int i = 1 );
-
- void init();
-
- circular_buffer( const circular_buffer<T> &b ); // disabled
- circular_buffer<T> &operator=( const circular_buffer<T> & ); // disabled
-
- void* buf_alloc( int size );
- void buf_free( void*& buf );
- void buf_write( void* buf, int n, const T & t );
- T& buf_read( void* buf, int n ) const;
- void buf_clear( void* buf, int n );
-
-private:
- int m_size; // size of the buffer
- void* m_buf; // the buffer
- int m_free; // number of free spaces
- int m_used; // number of used spaces
- int m_ri; // index of next read
- int m_wi; // index of next write
-
+ public:
+ explicit circular_buffer(int size=0);
+ ~circular_buffer();
+
+ void resize(int size);
+ void clear();
+
+ T read();
+ void write(const T &);
+
+ bool is_empty() const { return used() == 0; }
+ bool is_full() const { return free() == 0; }
+
+ int size() const { return m_size; }
+ int used() const { return m_used; }
+ int free() const { return m_free; }
+
+ const T &read_data() const { return buf_read(m_buf, m_ri); }
+ const T &
+ peek_data(int i) const
+ {
+ return buf_read(m_buf, (m_ri + i) % size());
+ }
+
+ T &
+ poke_data(int i)
+ {
+ return buf_read(m_buf, (m_wi + i) % size());
+ }
+
+ void debug() const;
+
+ private:
+ void increment_write_pos(int i=1);
+ void increment_read_pos(int i=1);
+
+ void init();
+
+ // Disabled.
+ circular_buffer(const circular_buffer<T> &b);
+ circular_buffer<T> &operator = (const circular_buffer<T> &);
+
+ void *buf_alloc(int size);
+ void buf_free(void *&buf);
+ void buf_write(void *buf, int n, const T &t);
+ T &buf_read(void *buf, int n) const;
+ void buf_clear(void *buf, int n);
+
+ private:
+ int m_size; // size of the buffer
+ void *m_buf; // the buffer
+ int m_free; // number of free spaces
+ int m_used; // number of used spaces
+ int m_ri; // index of next read
+ int m_wi; // index of next write
};
-template< typename T >
+template <typename T>
void
circular_buffer<T>::debug() const
{
-
- std::cout << "Buffer debug" << std::endl;
- std::cout << "Size : " << size() << std::endl;
- std::cout << "Free/Used " << free() << "/" << used() << std::endl;
- std::cout << "Indices : r/w = " << m_ri << "/" << m_wi << std::endl;
-
- if( is_empty() ) {
-
- std::cout << "empty" << std::endl;
-
- }
-
- if( is_full() ) {
-
- std::cout << "full" << std::endl;
-
- }
-
- std::cout << "Data : " << std::endl;
- for( int i = 0; i < used(); i++ ) {
-
- std::cout << peek_data( i ) << std::endl;
-
- }
-
-
+ std::cout << "Buffer debug" << std::endl;
+ std::cout << "Size : " << size() << std::endl;
+ std::cout << "Free/Used " << free() << "/" << used() << std::endl;
+ std::cout << "Indices : r/w = " << m_ri << "/" << m_wi << std::endl;
+
+ if (is_empty()) {
+ std::cout << "empty" << std::endl;
+ }
+
+ if (is_full()) {
+ std::cout << "full" << std::endl;
+ }
+
+ std::cout << "Data : " << std::endl;
+ for (int i = 0; i < used(); i++) {
+ std::cout << peek_data( i ) << std::endl;
+ }
}
-template < typename T >
-circular_buffer<T>::circular_buffer( int size )
- : m_size(size)
- , m_buf(0)
+template <typename T>
+circular_buffer<T>::circular_buffer(int size) : m_size(size), m_buf(0)
{
- init();
-
+ init();
}
-template < typename T >
+template <typename T>
void
circular_buffer<T>::clear()
{
- for( int i=0; i < used(); i++ ) {
- buf_clear( m_buf, (m_ri + i) % m_size );
- }
- m_free = m_size;
- m_used = m_ri = m_wi = 0;
+ for (int i = 0; i < used(); i++) {
+ buf_clear(m_buf, (m_ri + i) % m_size);
+ }
+ m_free = m_size;
+ m_used = m_ri = m_wi = 0;
}
-template < typename T >
+template <typename T>
circular_buffer<T>::~circular_buffer()
{
- clear();
- buf_free( m_buf );
+ clear();
+ buf_free(m_buf);
}
-template < typename T >
+template <typename T>
void
-circular_buffer<T>::resize( int size )
+circular_buffer<T>::resize(int size)
{
+ int i;
+ void *new_buf = buf_alloc(size);
- int i;
- void * new_buf = buf_alloc(size);
-
- for( i = 0; i < size && i < used(); i++ ) {
+ for (i = 0; i < size && i < used(); i++) {
+ buf_write(new_buf, i, peek_data(i));
+ buf_clear(m_buf, (m_ri + i) % m_size);
+ }
- buf_write( new_buf, i, peek_data( i ) );
- buf_clear( m_buf, (m_ri + i) % m_size );
+ buf_free(m_buf);
- }
+ m_size = size;
+ m_ri = 0;
+ m_wi = i % m_size;
+ m_used = i;
+ m_free = m_size - m_used;
- buf_free( m_buf );
-
- m_size = size;
- m_ri = 0;
- m_wi = i % m_size;
- m_used = i;
- m_free = m_size - m_used;
-
- m_buf = new_buf;
+ m_buf = new_buf;
}
-template < typename T >
+template <typename T>
void
-circular_buffer<T>::init() {
-
- if( m_size > 0 ) {
- m_buf = buf_alloc( m_size );
- }
-
- m_free = m_size;
- m_used = 0;
- m_ri = 0;
- m_wi = 0;
-
+circular_buffer<T>::init()
+{
+ if (m_size > 0) {
+ m_buf = buf_alloc(m_size);
+ }
+
+ m_free = m_size;
+ m_used = 0;
+ m_ri = 0;
+ m_wi = 0;
}
-template < typename T >
+template <typename T>
T
circular_buffer<T>::read()
{
- T t = read_data();
+ T t = read_data();
- buf_clear( m_buf, m_ri );
- increment_read_pos();
+ buf_clear(m_buf, m_ri);
+ increment_read_pos();
- return t;
+ return t;
}
-template < typename T >
+template <typename T>
void
-circular_buffer<T>::write( const T &t )
+circular_buffer<T>::write(const T &t)
{
- buf_write( m_buf, m_wi, t );
- increment_write_pos();
+ buf_write(m_buf, m_wi, t);
+ increment_write_pos();
}
-
-template < typename T >
+template <typename T>
void
-circular_buffer<T>::increment_write_pos( int i ) {
-
- m_wi = ( m_wi + i ) % m_size;
- m_used += i;
- m_free -= i;
-
+circular_buffer<T>::increment_write_pos(int i)
+{
+ m_wi = (m_wi + i) % m_size;
+ m_used += i;
+ m_free -= i;
}
-template < typename T >
+template <typename T>
void
-circular_buffer<T>::increment_read_pos( int i ) {
-
- m_ri = ( m_ri + i ) % m_size;
- m_used -= i;
- m_free += i;
-
+circular_buffer<T>::increment_read_pos(int i)
+{
+ m_ri = (m_ri + i) % m_size;
+ m_used -= i;
+ m_free += i;
}
-template < typename T >
-inline void*
-circular_buffer<T>::buf_alloc( int size )
- { return new unsigned char[ size * sizeof(T) ]; }
+template <typename T>
+inline void *
+circular_buffer<T>::buf_alloc(int size)
+{
+ return new unsigned char [size * sizeof(T)];
+}
-template < typename T >
+template <typename T>
inline void
-circular_buffer<T>::buf_free( void* & buf )
- { delete [] static_cast<unsigned char*>(buf); buf = 0; }
+circular_buffer<T>::buf_free(void *&buf)
+{
+ delete [] static_cast<unsigned char *>(buf);
+ buf = nullptr;
+}
-template < typename T >
+template <typename T>
inline void
-circular_buffer<T>::buf_write( void* buf, int n, const T & t )
+circular_buffer<T>::buf_write(void *buf, int n, const T &t)
{
- T* p = static_cast<T*>(buf) + n;
- new (p) T(t);
+ T *p = static_cast<T *>(buf) + n;
+ new (p)T(t);
}
-template < typename T >
-inline T&
-circular_buffer<T>::buf_read( void* buf, int n ) const
+template <typename T>
+inline T &
+circular_buffer<T>::buf_read(void *buf, int n) const
{
- T* p = static_cast<T*>(buf) + n;
- return *p;
+ T *p = static_cast<T *>(buf) + n;
+ return *p;
}
-template < typename T >
+template <typename T>
inline void
-circular_buffer<T>::buf_clear( void* buf, int n )
+circular_buffer<T>::buf_clear(void *buf, int n)
{
- T* p = static_cast<T*>(buf) + n;
- p->~T();
+ T *p = static_cast<T *>(buf) + n;
+ p->~T();
}
} // namespace tlm
#endif
-
+/* __TLM_CORE_TLM_1_TLM_REQ_RSP_TLM_CHANNELS_TLM_FIFO_CIRCULAR_BUFFER_H__ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-18 07:26:53 +0000