pit-iterator.h File Reference

#include "pit-entry.h"

Go to the source code of this file.

Data Structures
struct	PitDnUpIt_

Macros
#define	PitDn_Each(var, entry, canExtend)
	Iterate over DN slots in PIT entry.
#define	PitUp_Each(var, entry, canExtend)
	Iterate over UP slots in PIT entry.

Typedefs
typedef struct PitDnUpIt_	PitDnUpIt_
typedef PitDnUpIt_	PitDnIt
	Iterator of DN slots in PIT entry.
typedef PitDnUpIt_	PitUpIt
	Iterator of UP slots in PIT entry.

Functions
bool	PitDnUpIt_Extend_ (PitDnUpIt_ *it, PitEntry *entry, int maxInExt, size_t offsetInExt)

Macro Definition Documentation

PitDn_Each

#define PitDn_Each	(		var,
			entry,
			canExtend )

Value:

  for (PitDnIt var = PitDnUpIt_New_((entry), PitMaxDns, (entry)->dns);                             \
       PitDnUpIt_Valid_(&var, (canExtend), (entry), PitMaxExtDns, offsetof(PitEntryExt, dns));     \
       PitDnUpIt_Next_(&var, sizeof(PitDn), PitMaxExtDns, offsetof(PitEntryExt, dns)))

Iterate over DN slots in PIT entry.

PitDn_Each(it, pitEntry, false) {
  int index = it.index;
  PitDn* dn = it.dn;
  if (dn->face == 0) { // reaching the end of used slots
    break;
  }
  // access the DN record
}

PitDn_Each(it, pitEntry, true) {
  int index = it.index;
  PitDn* dn = it.dn;
  if (dn->face == faceID) { // found existing slot with wanted face
  }
  if (dn->face == 0) { // reaching the end of used slots
    PitDn_UseSlot(&it); // claim this slot as used
    dn->face = faceID;
    // initialized the slot
  }
}

PitUp_Each

#define PitUp_Each	(		var,
			entry,
			canExtend )

Value:

  for (PitUpIt var = PitDnUpIt_New_((entry), PitMaxUps, (entry)->ups);                             \
       PitDnUpIt_Valid_(&var, (canExtend), (entry), PitMaxExtUps, offsetof(PitEntryExt, ups));     \
       PitDnUpIt_Next_(&var, sizeof(PitUp), PitMaxExtUps, offsetof(PitEntryExt, ups)))

Iterate over UP slots in PIT entry.

See also

PitDn_Each

PitUp_Each(it, pitEntry, false) {
  int index = it.index;
  PitUp* up = it.up;
}

Typedef Documentation

PitDnIt

typedef PitDnUpIt_ PitDnIt

Iterator of DN slots in PIT entry.

PitDnUpIt_

typedef struct PitDnUpIt_ PitDnUpIt_

PitUpIt

typedef PitDnUpIt_ PitUpIt

Iterator of UP slots in PIT entry.

Function Documentation

PitDnUpIt_Extend_()

bool PitDnUpIt_Extend_	(	PitDnUpIt_ *	it,
		PitEntry *	entry,
		int	maxInExt,
		size_t	offsetInExt )