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add support for NS_ATTRIBUTE_DEFAULT

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This commit is contained in:
Mathieu Lacage
2009-02-24 10:27:08 +01:00
parent a31ecc8772
commit d698a38195
1 changed files with 61 additions and 18 deletions
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79
src/core/object-base.cc
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@@ -22,6 +22,10 @@
#include "trace-source-accessor.h"
#include "attribute-list.h"
#include "string.h"
#include "ns3/core-config.h"
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
NS_LOG_COMPONENT_DEFINE ("ObjectBase");
@@ -76,25 +80,10 @@ ObjectBase::ConstructSelf (const AttributeList &attributes)
if (j->checker == checker)
{
// We have a matching attribute value.
DoSet (accessor, checker, *j->value);
NS_LOG_DEBUG ("construct \""<< tid.GetName ()<<"::"<<
tid.GetAttributeName (i)<<"\"");
found = true;
break;
}
}
if (!found)
{
// is this attribute stored in the global instance instance ?
for (AttributeList::Attrs::const_iterator j = AttributeList::GetGlobal ()->m_attributes.begin ();
j != AttributeList::GetGlobal ()->m_attributes.end (); j++)
{
if (j->checker == checker)
if (DoSet (accessor, checker, *j->value))
{
// We have a matching attribute value.
DoSet (accessor, checker, *j->value);
NS_LOG_DEBUG ("construct \""<< tid.GetName ()<<"::"<<
tid.GetAttributeName (i)<<"\" from global");
tid.GetAttributeName (i)<<"\"");
found = true;
break;
}
@@ -102,7 +91,61 @@ ObjectBase::ConstructSelf (const AttributeList &attributes)
}
if (!found)
{
// No matching attribute value so we set the default value.
// is this attribute stored in the global instance ?
for (AttributeList::Attrs::const_iterator j = AttributeList::GetGlobal ()->m_attributes.begin ();
j != AttributeList::GetGlobal ()->m_attributes.end (); j++)
{
if (j->checker == checker)
{
// We have a matching attribute value.
if (DoSet (accessor, checker, *j->value))
{
NS_LOG_DEBUG ("construct \""<< tid.GetName ()<<"::"<<
tid.GetAttributeName (i)<<"\" from global");
found = true;
break;
}
}
}
}
if (!found)
{
// No matching attribute value so we try to look at the env var.
#ifdef HAVE_GETENV
char *envVar = getenv ("NS_ATTRIBUTE_DEFAULT");
if (envVar != 0)
{
std::string env = std::string (envVar);
std::string::size_type cur = 0;
std::string::size_type next = 0;
while (next != std::string::npos)
{
next = env.find (";", cur);
std::string tmp = std::string (env, cur, next-cur);
std::string::size_type equal = tmp.find ("=");
if (equal != std::string::npos)
{
std::string name = tmp.substr (0, equal);
std::string value = tmp.substr (equal+1, tmp.size () - equal - 1);
if (name == tid.GetAttributeFullName (i))
{
if (DoSet (accessor, checker, StringValue (value)))
{
NS_LOG_DEBUG ("construct \""<< tid.GetName ()<<"::"<<
tid.GetAttributeName (i)<<"\" from env var");
found = true;
break;
}
}
}
cur = next + 1;
}
}
#endif /* HAVE_GETENV */
}
if (!found)
{
// No matching attribute value so we try to set the default value.
DoSet (accessor, checker, *initial);
NS_LOG_DEBUG ("construct \""<< tid.GetName ()<<"::"<<
tid.GetAttributeName (i)<<"\" from initial value.");