/*
* 将Footer字符串进行解析
* 验证magic值
* 读取metaIndexBlock和dataIndexBlock的句柄
*/
int decodeFooter(Footer* pfooter,const Slice* input)
{
const unsigned char* magic_ptr = input->data_;
const uint64_t magic = decodeFixed64(magic_ptr+40);
if(magic != MAGICNUMBER){
printf("This is not a ldb file(bad magic).\n");
exit(-1);
}
printf("Success magic!\n");
varint varint;
varint.value_ = magic_ptr;
varint.size_ = 0;
pfooter->metaIndexHandle.offset_ = varToint64(&varint);
printf("vint offset = %zd\n",varint.size_);
pfooter->metaIndexHandle.size_ = varToint64(&varint);
printf("vint offset = %zd\n",varint.size_);
pfooter->dataIndexHandle.offset_ = varToint64(&varint);
printf("vint offset = %zd\n",varint.size_);
pfooter->dataIndexHandle.size_ = varToint64(&varint);
printf("vint offset = %zd\n",varint.size_);
showFooter(pfooter);
return 0;
}
void CProgressWindow::Init(bool global_only)
{
global_progress = local_progress = 100;
showFooter(false);
shadow = true;
int x_item = 10;
int y_item = 10;
setWidthP(75);
int w_item = width-2*x_item;
int h_item = 14;
int h_pbar = 20;
w_bar_frame = 0;
//create status text object
status_txt = new CComponentsLabel();
int h_txt = max(g_Font[SNeutrinoSettings::FONT_TYPE_MENU]->getHeight(), h_item);
status_txt->setDimensionsAll(x_item, y_item, w_item, h_txt);
status_txt->setColorBody(col_body);
status_txt->doPaintTextBoxBg(true);
addWindowItem(status_txt);
y_item += h_txt + 10;
//create local_bar object
local_bar = new CProgressBar();
if (!global_only) {
local_bar->allowPaint(false);
local_bar->setDimensionsAll(x_item, y_item, w_item, h_pbar);
local_bar->setColorBody(col_body);
local_bar->setActiveColor(COL_MENUCONTENT_PLUS_7);
local_bar->setFrameThickness(w_bar_frame);
local_bar->setColorFrame(COL_MENUCONTENT_PLUS_7);
addWindowItem(local_bar);
y_item += 2*h_pbar;
}
//create global_bar object
global_bar = new CProgressBar();
global_bar->allowPaint(false);
global_bar->setDimensionsAll(x_item, y_item, w_item, h_pbar);
global_bar->setColorBody(col_body);
global_bar->setActiveColor(COL_MENUCONTENT_PLUS_7);
global_bar->setFrameThickness(w_bar_frame);
global_bar->setColorFrame(COL_MENUCONTENT_PLUS_7);
addWindowItem(global_bar);
y_item += 2*h_pbar;
h_height = ccw_head->getHeight();
height = y_item + h_height;
setCenterPos();
}
int main()
{
FILE* fp;
size_t i = 0;
size_t offset;
fp = fopen("src.ldb","r");
if(fp == NULL){
printf("error!\n");
return 1;
}
unsigned char a[] = "src.ldb";
unsigned char b[] = "1-959-250-4279";
//"1-114-560-9305";
Slice filename;
Slice lastKey;/* 用于存储最后一次读取到的key */
Slice srckey; /* 存储要查找、删除、修改、添加的key */
DBhandle dbhandle;
Footer footer;
Block dataIndexBlock;
Block* blockArray;
BlockEntry blockEntry;
initSlice(&filename,10);
initSlice(&lastKey,20);
initBlockEntry(&blockEntry);
initDBhandle(&dbhandle);
setSlice(&dbhandle.key_,b,22);
setSlice(&filename,a,strlen((char*)a));
sequentialFile* psFile = (sequentialFile*)malloc(sizeof(sequentialFile));
setSequentialFile(psFile,fp,&filename);
readFooter(psFile,&footer);
showFooter(&footer);
/* 读取data index block，存储在dataBlock中 */
readBlock(psFile,&dataIndexBlock,footer.dataIndexHandle);
blockArray = (Block*)malloc(sizeof(Block)*dataIndexBlock.restartNum);
if(blockArray == NULL){
printf("error:blockArray is NULL.\n");
return 1;
}
readAllBlock(psFile,blockArray,&dataIndexBlock);
/*设置操作为Read*/
dbhandle.type = 1;
dbcmd(blockArray,&dataIndexBlock,&dbhandle);
/*
* 至此，所有的block都已经读取到内存中,data block的内容存储在blockarray中，
* data block的索引信息存储在dataIndexBlock中
*/
/*
*
*/
//showBlokRestart(&dataIndexBlock);
for(i = 0;i < dataIndexBlock.restartNum;i++){
//showBlockData(&(blockArray[i]));
}
freeBlockEntry(&blockEntry);
freeDBhandle(&dbhandle);
fclose(fp);
printf("Hello World!\n");
return 0;
}
