virtual void operator()() {
Task::AbortableWorkItemPtr tempReference(shared_from_this());
if (!prepareExecute()) {
return;
}
unlink(mPath.c_str());
mCallback(true);
}
int MySQLFactorerCommunicator::executeUpdate(const char *command)
{
int ret = prepareExecute();
if( ret )
{
ret = stmt->executeUpdate(command);
}
clearExecute();
return ret;
}
sql::ResultSet* MySQLFactorerCommunicator::executeQuery(const char* command)
{
sql::ResultSet *res = nullptr;
if( prepareExecute() )
{
res = stmt->executeQuery(command);
}
clearExecute();
return res;
}
void operator() () {
Task::AbortableWorkItemPtr tempReference(shared_from_this());
if (!prepareExecute()) {
return;
}
int flags;
std::string openPath;
if (!mTemporaryPath.empty()) {
flags = O_CREAT|O_TRUNC|O_WRONLY;
openPath = mTemporaryPath;
} else {
flags = O_CREAT|O_WRONLY;
openPath = mPath;
}
if (mAppendMode && mTemporaryPath.empty()) {
flags |= O_APPEND;
}
makeParentDir(openPath);
mFd = open_at_byte(openPath.c_str(), flags, mData.startbyte());
if (mFd == -1) {
aborted();
return;
}
cache_usize_type pos = mData.startbyte(), length = 0;
do {
const unsigned char *data = mData.dataAt(pos, length);
if (!data) {
lseek64(mFd, length, SEEK_CUR);
} else {
if (!write_full(mFd, data, length)) {
aborted();
return;
}
}
pos += length;
} while (length);
if (!mTemporaryPath.empty()) {
// Fixme: Not guaranteed to be ordered with write() calls, google for ext4 data loss.
makeParentDir(mPath);
rename(mTemporaryPath.c_str(), mPath.c_str());
}
mCallback(true);
close(mFd);
}
void operator() () {
Task::AbortableWorkItemPtr tempReference(shared_from_this());
if (!prepareExecute()) {
return;
}
mFd = open_at_byte(mPath.c_str(), O_RDONLY, mRange.startbyte());
if (mFd == -1) {
aborted();
return;
}
struct stat64 st;
if (fstat64(mFd, &st)==0 && st.st_size > 0) {
mDiskSize = st.st_size;
}
readLoop();
close(mFd);
}
void operator() () {
Task::AbortableWorkItemPtr tempReference(shared_from_this());
if (!prepareExecute()) {
return;
}
struct stat64 st;
cache_usize_type diskSize = 0;
if (stat64(mPath.c_str(), &st)!=0) {
aborted();
return;
}
if (st.st_size > 0) {
diskSize = st.st_size;
}
if (access(mPath.c_str(), R_OK)==0) {
mCallback(DenseDataPtr(), true, diskSize);
} else {
mCallback(DenseDataPtr(), false, diskSize);
}
}
