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[fnd] Add fnd::io::getFileSize()

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jakcron 2018-04-15 10:36:43 +08:00
parent 8a8fe7b0e8
commit 88bcc8ce6d
2 changed files with 13 additions and 0 deletions
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1
lib/libfnd/include/fnd/io.h
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@ -6,6 +6,7 @@ namespace fnd
{ {
namespace io namespace io
{ {
size_t getFileSize(const std::string& path);
void readFile(const std::string& path, MemoryBlob& blob); void readFile(const std::string& path, MemoryBlob& blob);
void readFile(const std::string& path, size_t offset, size_t len, MemoryBlob& blob); void readFile(const std::string& path, size_t offset, size_t len, MemoryBlob& blob);
void writeFile(const std::string& path, const MemoryBlob& blob); void writeFile(const std::string& path, const MemoryBlob& blob);

12
lib/libfnd/source/io.cpp
View file

@ -1,10 +1,22 @@
#include <fnd/io.h> #include <fnd/io.h>
#include <fstream>
using namespace fnd; using namespace fnd;
static const std::string kModuleName = "IO"; static const std::string kModuleName = "IO";
static const size_t kBlockSize = 0x100000; static const size_t kBlockSize = 0x100000;
size_t io::getFileSize(const std::string& path)
{
std::ifstream f;
f.open(path, std::ios_base::binary | std::ios_base::in);
if (!f.good() || f.eof() || !f.is_open()) { return 0; }
f.seekg(0, std::ios_base::beg);
std::ifstream::pos_type begin_pos = f.tellg();
f.seekg(0, std::ios_base::end);
return static_cast<size_t>(f.tellg() - begin_pos);
}
void io::readFile(const std::string& path, MemoryBlob & blob) void io::readFile(const std::string& path, MemoryBlob & blob)
{ {
FILE* fp; FILE* fp;