key-meta.cc

无线传感器网络中,基于协商的SPIN路由协议在NS-2下仿真实现的源代码

#include <mit/rca/meta/key-meta.h>

static class KeyMetaClass : public TclClass {
public:
  KeyMetaClass() : TclClass("KeyMetaData") {}
  TclObject* create(int, const char*const*) {
    return (new KeyMeta);
  }
} class_KeyMeta;

KeyMeta::KeyMeta()
{
}

KeyMeta::~KeyMeta()
{
}

int KeyMeta::command(int argc, const char*const* argv)
{
  Tcl& tcl = Tcl::instance();

  if (argc == 2) {
    if (strcmp(argv[1], "metatostring") == 0) {
      char *result = KeyMeta::MetaToString();
      tcl.resultf("%s",result);
      return TCL_OK;
    }
  }

  if (argc == 3) {
    if (strcmp(argv[1], "stringtometa") == 0) {
      KeyMeta::StringToMeta((char *)argv[2]);
      return TCL_OK;
    }
  }
  return KeySet::command(argc, argv);
}

void KeyMeta::StringToMeta(char *string)
{
  char *c;

  char *stringstart = string;
  for(c = string; *c != '\0' ; c++)
    {
      if (*c == ',')
	{
	  *c = '\0';
	  Add(stringstart);
	  stringstart = c + 1;
	}
    }
  Add(stringstart);
  return;
}

char *KeyMeta::MetaToString()
{
  int size = 0;
  int i;

  for (i = 0; i < buckets_ ; i++)
    {
      BucketList *p;
      for (p = htab_[i] ; p != NULL ; p = p->next_)
	{
	  size += strlen(p->key_) + 1;
	}
    }

  char *string = new char[size];
  char *c = string;

  for (i = 0; i < buckets_ ; i++)
    {
      BucketList *p;
      for (p = htab_[i] ; p != NULL ; p = p->next_)
	{
	  strcpy(c,p->key_);
	  size = strlen(p->key_);
	  c = c+size;
	  *c = ',';
	  c++;
	}
    }
  c--;
  *c = '\0';
  return string;
}