#include <wverror.h>
Inheritance diagram for WvErrorBase:
It can have either a system error value, like those defined in errno.h, or an arbitrary error string. In either case, it can return a string representation of the error message.
This object is most useful for using as a base class of your own class, for historical/backwards compatibility reasons. Consider using a WvError instead, and making it a member of your class instead of a parent.
Definition at line 23 of file wverror.h.
Public Member Functions | |
WvErrorBase () | |
virtual | ~WvErrorBase () |
virtual bool | isok () const |
By default, returns true if geterr() == 0. | |
virtual int | geterr () const |
If isok() is false, return the system error number corresponding to the error, -1 for a special error string (which you can obtain with errstr()) or 0 on end of file. | |
virtual WvString | errstr () const |
virtual void | seterr (int _errnum) |
Set the errnum variable -- we have an error. | |
void | seterr (WvStringParm specialerr) |
void | seterr (WVSTRING_FORMAT_DECL) |
void | seterr_both (int _errnum, WvStringParm specialerr) |
void | seterr (const WvErrorBase &err) |
void | noerr () |
Reset our error state - there's no error condition anymore. | |
Static Public Member Functions | |
static WvString | strerror (int errnum) |
A replacement for the operating system strerror() function that can map more kinds of error strings (especially in win32). | |
Protected Attributes | |
int | errnum |
WvString | errstring |
virtual bool WvErrorBase::isok | ( | ) | const [inline, virtual] |
By default, returns true if geterr() == 0.
Might be overridden so that isok() == false even though no error code has been specified.
Reimplemented in IWvStream, WvBufStream, WvDSAKey, WvDsp, WvEncoderStream, WvFdStream, WvHTTPStream, WvIStreamList, WvLog, WvRSAKey, WvSSLStream, WvStream, WvStreamClone, WvTCPConn, WvTimeoutStream, WvTimeStream, WvFileWatcher, WvX509Mgr, and _WvConStream.
Definition at line 39 of file wverror.h.
References errnum.
Referenced by WvX509Mgr::isok(), WvStream::isok(), WvCRLMgr::isok(), WvGlob::set(), and WvGlobDirIter::WvGlobDirIter().
virtual int WvErrorBase::geterr | ( | ) | const [inline, virtual] |
If isok() is false, return the system error number corresponding to the error, -1 for a special error string (which you can obtain with errstr()) or 0 on end of file.
If isok() is true, returns an undefined number.
Reimplemented in WvHTTPStream, WvStreamClone, and WvX509Mgr.
Definition at line 48 of file wverror.h.
References errnum.
Referenced by UniIniGen::commit(), WvX509Mgr::errstr(), WvStreamClone::errstr(), errstr(), WvError::get(), UniFileSystemGen::get(), WvX509Mgr::geterr(), WvStreamClone::geterr(), WvEncoderStream::isok(), WvConf::load_file(), WvLockDev::lock(), WvHTTPStream::pre_select(), UniIniGen::refresh(), WvConf::save(), WvStream::seterr(), seterr(), WvMagicCircle::WvMagicCircle(), and WvHttpPool::~WvHttpPool().
void WvErrorBase::seterr | ( | int | _errnum | ) | [virtual] |
Set the errnum variable -- we have an error.
If called more than once, seterr() doesn't change the error code away from the previous one. That way, we remember the _original_ cause of our problems.
Subclasses may want to override seterr(int) to shut themselves down (eg. WvStream::close()) when an error condition is set.
Note that seterr(WvString) will call seterr(-1).
Reimplemented in WvStream.
Definition at line 144 of file wverror.cc.
References errstring.
Referenced by WvX509Mgr::certreq(), WvX509Mgr::create_selfsigned(), WvX509Mgr::decode(), WvCRLMgr::decode(), WvX509Mgr::encode(), WvCRLMgr::encode(), WvRSAKey::getpem(), WvDSAKey::getpem(), WvX509Mgr::read_p12(), WvGlob::set(), WvError::set(), WvX509Mgr::set_pubkey(), WvStream::seterr(), seterr(), seterr_both(), WvX509Mgr::sign(), WvX509Mgr::signedbyCAinfile(), WvX509Mgr::test(), WvX509Mgr::unhexify(), WvX509Mgr::validate(), WvX509Mgr::verify(), WvX509Mgr::write_p12(), WvCRLMgr::WvCRLMgr(), WvDSAKey::WvDSAKey(), WvMagicCircle::WvMagicCircle(), WvPam::WvPam(), WvRSAKey::WvRSAKey(), WvShmZone::WvShmZone(), and WvX509Mgr::WvX509Mgr().