WvStreams
Public Member Functions
WvResolver Class Reference

ASynchronous DNS resolver functions, so that we can do non-blocking lookups. More...

#include <wvresolver.h>

List of all members.

Public Member Functions

int findaddr (int msec_timeout, WvStringParm name, WvIPAddr const **addr, WvIPAddrList *addrlist=NULL)
 Return -1 on timeout, or the number of addresses found, which may be 0 if the address does not exist.
int findname (int msec_timeout, WvIPAddr *ipaddr, char **name)
void clearhost (WvStringParm hostname)
void pre_select (WvStringParm hostname, WvStream::SelectInfo &si)
 add all of our waiting fds to an fd_set for use with select().
bool post_select (WvStringParm hostname, WvStream::SelectInfo &si)
 determines whether the resolving process is complete.

Detailed Description

ASynchronous DNS resolver functions, so that we can do non-blocking lookups.

Definition at line 24 of file wvresolver.h.


Member Function Documentation

int WvResolver::findaddr ( int  msec_timeout,
WvStringParm  name,
WvIPAddr const **  addr,
WvIPAddrList *  addrlist = NULL 
)

Return -1 on timeout, or the number of addresses found, which may be 0 if the address does not exist.

addrlist, if present, has to be an initialized list. addr points to an internal WvIPAddr and will be deleted automatically.

Definition at line 149 of file wvresolver.cc.

References WvStream::blocking_getline(), WvFdStream::getrfd(), WvFdStream::getwfd(), WvFdStream::isok(), WvStream::noread(), WvStream::nowrite(), WvStream::select(), and wvfork().

Referenced by WvTCPConn::check_resolver().

add all of our waiting fds to an fd_set for use with select().

Definition at line 316 of file wvresolver.cc.

References WvStream::xpre_select().

Referenced by WvTCPConn::pre_select(), and WvHttpPool::pre_select().

determines whether the resolving process is complete.

Definition at line 331 of file wvresolver.cc.

References WvStream::xpost_select().

Referenced by WvTCPConn::post_select(), and WvHttpPool::post_select().


The documentation for this class was generated from the following files: