本文整理汇总了C++中FilePtr::seek方法的典型用法代码示例。如果您正苦于以下问题：C++ FilePtr::seek方法的具体用法？C++ FilePtr::seek怎么用？C++ FilePtr::seek使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类FilePtr的用法示例。
在下文中一共展示了FilePtr::seek方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: load
// --------------------------------------------------------------------------
void Property::load(const FileGroupPtr &db, const BitArray &objMask) {
// Open the chunk specified by "P$" + mChunkName
FilePtr fprop;
string pchn = "P$" + mChunkName;
try {
fprop = db->getFile(pchn);
const DarkDBChunkHeader &hdr = db->getFileHeader(pchn);
// compare the versions, log differences
if (hdr.version_high != mVerMaj || hdr.version_low != mVerMin) {
LOG_ERROR("Property %s version mismatch : %d.%d expected, %d.%d "
"encountered",
pchn.c_str(), mVerMaj, mVerMin, hdr.version_high,
hdr.version_low);
}
} catch (const BasicException &) {
LOG_ERROR("Property::load : Could not find the property chunk %s",
pchn.c_str());
return;
}
// Can't calculate the count of the properties, as they can have any size
// load. Each record has: OID, size (32 bit uint's)
int id = 0xDEADBABE;
while (!fprop->eof()) {
// load the id
fprop->readElem(&id, sizeof(uint32_t));
// if the object is not in the mask, skip the property
if (!objMask[id]) {
LOG_DEBUG("Property::load: skipping object %d, not in bitmap", id);
// prop has length and data - so skip according to that
uint32_t size;
fprop->read(&size, sizeof(uint32_t));
fprop->seek(size, File::FSEEK_CUR);
continue;
}
// Use property storage to load the property
if (mPropertyStorage->readFromFile(fprop, id, true)) {
_addProperty(id);
} else {
LOG_ERROR("There was an error loading property %s for object %d. "
"Property was not loaded",
mName.c_str(), id);
}
}
}示例2: readFromFile
// --------------------------------------------------------------------------
bool StructuredDataStorage::readFromFile(FilePtr& file, int objID, bool sizeStored) {
DTypePtr pd = getDataForObject(objID);
if (pd.isNull()) {
uint32_t size;
// Read the size
if (sizeStored)
file->readElem(&size, sizeof(uint32_t));
else
size = mTypeDef->size();
// compare sizes
if (size != mTypeDef->size())
LOG_ERROR("Data size mismatch: %d definition, %d file source", mTypeDef->size(), size);
// create a new data
pd = _create(objID);
pd->read(file, size);
mDataMap.insert(std::make_pair(objID, pd));
return true;
} else {
// still have to at least skip the data
uint32_t size;
// Read the size
file->readElem(&size, sizeof(uint32_t));
file->seek(size, File::FSEEK_CUR);
LOG_ERROR("Data already defined for object %d", objID);
}
return false;
}