#include <wvshmzone.h>
Inherits WvError.
Collaboration diagram for WvShmZone:
If you create one of these, its buf element will be shared across fork() and you can use it for various things such as a circular queue, semaphore, etc.
Definition at line 20 of file wvshmzone.h.
Public Member Functions | |
WvShmZone (size_t size) | |
Creates a shared memory zone. | |
~WvShmZone () | |
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 (const WvError &err) |
void | noerr () |
Reset our error state - there's no error condition anymore. | |
Public Attributes | |
int | size |
Protected Attributes | |
int | errnum |
WvString | errstring |
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Creates a shared memory zone. "size" is the size of the zone in bytes Definition at line 16 of file wvshmzone.cc. References WvError::seterr(). |
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Definition at line 40 of file wvshmzone.cc. |
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Reimplemented in WvHTTPStream, and WvStreamClone. Definition at line 20 of file wverror.cc. References WvError::errnum, and WvError::errstring. Referenced by UniIniGen::commit(), WvStreamClone::errstr(), main(), UniIniGen::refresh(), WvError::seterr(), UniConfDaemon::setupsslsocket(), UniConfDaemon::setuptcpsocket(), UniConfDaemon::setupunixsocket(), WvX509Mgr::WvX509Mgr(), and WvHttpPool::~WvHttpPool(). |
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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, and WvStreamClone. Definition at line 44 of file wverror.h. References WvError::errnum. Referenced by UniIniGen::commit(), WvStreamClone::geterr(), WvEncoderStream::isok(), WvConf::load_file(), WvLockDev::lock(), main(), WvHTTPStream::pre_select(), UniIniGen::refresh(), WvConf::save(), WvError::seterr(), WvMagicCircle::WvMagicCircle(), and WvHttpPool::~WvHttpPool(). |
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By default, returns true if geterr() == 0. Might be overridden so that isok() == false even though no error code has been specified. Reimplemented in UniClientConn, WvBufStream, WvDailyEvent, WvDsp, WvEncoderStream, WvFDStream, WvHTTPStream, WvIStreamList, WvLog, WvPamStream, WvSSLStream, IWvStream, WvStream, WvStreamClone, WvStreamList, WvTCPConn, WvTimeoutStream, WvTimeStream, WvFileWatcher, and UniConfDaemon. Definition at line 35 of file wverror.h. References WvError::errnum. Referenced by WvBdbHashBase::add(), WvBdbHashBase::exists(), WvBdbHashBase::find(), WvStreamList::isok(), WvStream::isok(), main(), WvBdbHash< K, D >::Iter::next(), WvBdbHashBase::IterBase::next(), WvBdbHashBase::remove(), WvRSAEncoder::WvRSAEncoder(), WvRSAStream::WvRSAStream(), WvX509Mgr::WvX509Mgr(), and WvBdbHashBase::zap(). |
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Reset our error state - there's no error condition anymore.
Definition at line 65 of file wverror.h. References WvError::errnum. Referenced by WvBdbHashBase::opendb(), and WvError::WvError(). |
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Definition at line 64 of file wverror.cc. References WvError::errstr(), WvError::geterr(), and WvError::seterr(). |
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Reimplemented in WvStream. Definition at line 60 of file wverror.h. References WvError::seterr(), and WVSTRING_FORMAT_CALL. |
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Reimplemented in WvStream. Definition at line 54 of file wverror.cc. References WvError::errnum, WvError::errstring, WvError::seterr(), and WvStringParm. |
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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 47 of file wverror.cc. References WvError::errnum. Referenced by WvBdbHashBase::add(), WvBdbHashBase::closedb(), WvBdbHashBase::exists(), WvBdbHashBase::find(), main(), WvBdbHashBase::IterBase::next(), WvBdbHashBase::opendb(), WvBdbHashBase::remove(), WvStream::seterr(), WvError::seterr(), WvMagicCircle::WvMagicCircle(), WvRSAKey::WvRSAKey(), WvShmZone(), and WvBdbHashBase::zap(). |
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Definition at line 38 of file wvshmzone.h. |
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Definition at line 39 of file wvshmzone.h. Referenced by WvMagicCircle::WvMagicCircle(). |
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Definition at line 22 of file wverror.h. Referenced by WvError::errstr(), WvError::geterr(), WvError::isok(), WvError::noerr(), and WvError::seterr(). |
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Definition at line 23 of file wverror.h. Referenced by WvError::errstr(), and WvError::seterr(). |
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Definition at line 35 of file wvshmzone.h. |
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Definition at line 40 of file wvshmzone.h. |