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added DNS::reload()

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This commit is contained in:
Guenter Obiltschnig
2013-02-14 16:35:04 +01:00
parent b3a3ece54e
commit 0ab5c9dcf6
2 changed files with 37 additions and 5 deletions
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34
Net/src/DNS.cpp
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@@ -39,11 +39,15 @@
#include "Poco/Net/SocketAddress.h"
#include "Poco/Environment.h"
#include "Poco/NumberFormatter.h"
#include "Poco/AtomicCounter.h"
#include "Poco/RWLock.h"
#include <cstring>
using Poco::FastMutex;
#if defined(POCO_HAVE_LIBRESOLV)
#include <resolv.h>
#endif
using Poco::Environment;
using Poco::NumberFormatter;
using Poco::IOException;
@@ -53,8 +57,17 @@ namespace Poco {
namespace Net {
#if defined(POCO_HAVE_LIBRESOLV)
static Poco::RWLock resolverLock;
#endif
HostEntry DNS::hostByName(const std::string& hostname)
{
#if defined(POCO_HAVE_LIBRESOLV)
Poco::ScopedReadRWLock readLock(resolverLock);
#endif
#if defined(POCO_HAVE_IPv6) || defined(POCO_HAVE_ADDRINFO)
struct addrinfo* pAI;
struct addrinfo hints;
@@ -91,6 +104,10 @@ HostEntry DNS::hostByName(const std::string& hostname)
HostEntry DNS::hostByAddress(const IPAddress& address)
{
#if defined(POCO_HAVE_LIBRESOLV)
Poco::ScopedReadRWLock readLock(resolverLock);
#endif
#if defined(POCO_HAVE_IPv6) || defined(POCO_HAVE_ADDRINFO)
SocketAddress sa(address, 0);
static char fqname[1024];
@@ -162,6 +179,15 @@ HostEntry DNS::thisHost()
}
void DNS::reload()
{
#if defined(POCO_HAVE_LIBRESOLV)
Poco::ScopedWriteRWLock writeLock(resolverLock);
res_init();
#endif
}
void DNS::flushCache()
{
}
@@ -214,7 +240,7 @@ void DNS::error(int code, const std::string& arg)
void DNS::aierror(int code, const std::string& arg)
{
#if defined(POCO_HAVE_IPv6)
#if defined(POCO_HAVE_IPv6) || defined(POCO_HAVE_ADDRINFO)
switch (code)
{
case EAI_AGAIN:
@@ -241,7 +267,7 @@ void DNS::aierror(int code, const std::string& arg)
default:
throw DNSException("EAI", NumberFormatter::format(code));
}
#endif // POCO_HAVE_IPv6
#endif // POCO_HAVE_IPv6 || defined(POCO_HAVE_ADDRINFO)
}