To add asynchronous DNS support(libares):
* src/AbstractCommand.h
(setNameResolverCheck): New function.
(disableNameResolverCheck): New function
(resolveHostname): New function.
* src/AbstractCommand.cc
(setNameResolverCheck): New function.
(disableNameResolverCheck): New function
(resolveHostname): New function.
* src/FtpInitiateConnectionCommand.h
(nameResolver): New function.
* src/FtpInitiateConnectionCommand.cc
(Util.h): Included.
(FtpInitiateConnectionCommand): Call disableReadCheckSocket,
disableWriteCheckSocket.
(~FtpInitiateConnectionCommand): Call disableNameResolverCheck.
(executeInternal): Added async DNS support.
* src/HttpInitiateConnectionCommand.h
(nameResolver): New function.
* src/HttpInitiateConnectionCommand.cc
(DlRetryEx.h): Included.
(HttpInitiateConnectionCommand): Call disableReadCheckSocket,
disableWriteCheckSocket.
(~HttpInitiateConnectionCommand): Call disableNameResolverCheck.
(executeInternal): Added async DNS support.
* src/NameResolver.h: New class. Note: #include <ares.h> is
surrounded
by extern "C" declaration.
* src/NameResolver.cc: New class.
* src/Util.h:
(isNumberAndDotsNotation): New function
* src/Util.cc
(isNumberAndDotsNotation): New function.
* src/DownloadEngine.h
(NameResolver.h): Included.
(NameResolverEntry): New class.
(NameResolverEntries): New type definition.
(addNameResolverCheck): New function.
(deleteNameResolverCheck): New function.
* src/DownloadEngine.cc
(run): Initialize cp with 0.
(SetDescriptor::operator()): Added for NameResolverEntry.
(AccumulateActiveUuid::operator()): Added for NameResolverEntry.
(waitData): Check nameResolver entries.
(updateFdSet): Update fds in nameResolver entries.
(addNameResolverCheck): New function.
(deleteNameResolverCheck): new function.
* src/PeerInteractionCommand.cc
(executeInternal): Fixed wrong socket handling.
* src/main.cc
(main): Fixed the initial value of PREF_LOWEST_SPEED_LIMIT
option to 0.
* src/Util.cc
(fileChecksum): Removed the call to ctx.digestReset().
Tatsuhiro Tsujikawa