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working file extractor; removed hard-coded paths

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This commit is contained in:
Jack Andersen
2015-06-30 09:38:51 -10:00
parent 293b7c0ce6
commit a1b2a262bf
13 changed files with 194 additions and 100 deletions
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24
lib/FileIOFILE.cpp
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@@ -18,13 +18,13 @@ public:
FileIOFILE(const std::string& path)
: m_path(path) {}
size_t size()
uint64_t size()
{
FILE* fp = fopen(m_path.c_str(), "rb");
if (!fp)
return 0;
fseek(fp, 0, SEEK_END);
size_t result = ftell(fp);
fseeko(fp, 0, SEEK_END);
uint64_t result = ftello(fp);
fclose(fp);
return result;
}
@@ -40,13 +40,15 @@ public:
throw std::runtime_error("unable to open '" + path + "' for writing");
}
~WriteStream() {fclose(fp);}
size_t copyFromDisc(IPartReadStream& discio, size_t length)
uint64_t write(void* buf, uint64_t length)
{return fwrite(buf, 1, length, fp);}
uint64_t copyFromDisc(IPartReadStream& discio, uint64_t length)
{
size_t read = 0;
uint64_t read = 0;
while (length)
{
size_t thisSz = MIN(0x7c00, length);
size_t readSz = discio.read(buf, thisSz);
uint64_t thisSz = MIN(0x7c00, length);
uint64_t readSz = discio.read(buf, thisSz);
if (thisSz != readSz)
throw std::runtime_error("unable to read enough from disc");
if (fwrite(buf, 1, readSz, fp) != readSz)
@@ -71,12 +73,14 @@ public:
throw std::runtime_error("unable to open '" + path + "' for reading");
}
~ReadStream() {fclose(fp);}
size_t copyToDisc(IPartWriteStream& discio, size_t length)
uint64_t read(void* buf, uint64_t length)
{return fread(buf, 1, length, fp);}
uint64_t copyToDisc(IPartWriteStream& discio, uint64_t length)
{
size_t written = 0;
uint64_t written = 0;
while (length)
{
size_t thisSz = MIN(0x7c00, length);
uint64_t thisSz = MIN(0x7c00, length);
if (fread(buf, 1, thisSz, fp) != thisSz)
throw std::runtime_error("unable to read enough from file");
if (discio.write(buf, thisSz) != thisSz)