attached_entries.h

 
#ifndef BF_P4C_MAU_ATTACHED_ENTRIES_H_
#define BF_P4C_MAU_ATTACHED_ENTRIES_H_
 
#include <ostream>
 
#include "lib/ordered_map.h"
 
namespace P4 {
namespace IR {
namespace MAU {
class AttachedMemory;  // forward declaration
}
}  // namespace IR
}  // namespace P4
 
using namespace P4;
 
// Table Placement needs to communicate infomation about attached tables (how many entries
// are being placed in the current stage and whether more will be in a later stage) to Memory
// allocation, IXBar allocation, and table layout.  It does so via an attached_entries_t
// map, which needs to be declared before anything related to any of the above can be
// declared, so there's no good place to do it.  So we declare it here as a stand-alone
// header that can be included before anything else
 
struct attached_entries_element_t {
    int entries;
    bool need_more = false;   // need more entries in a later stage
    bool first_stage = true;  // no entries are in any earlier stage
    attached_entries_element_t() = delete;
    explicit attached_entries_element_t(int e) : entries(e) {}
};
 
typedef ordered_map<const IR::MAU::AttachedMemory *, attached_entries_element_t> attached_entries_t;
 
// not a consistent ordering -- true if first has more of anything than second
bool operator>(const attached_entries_t &, const attached_entries_t &);
 
std::ostream &operator<<(std::ostream &, const attached_entries_t &);
std::ostream &operator<<(std::ostream &, const attached_entries_element_t &);
 
#endif /* BF_P4C_MAU_ATTACHED_ENTRIES_H_ */