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Wrapped fopen/close/read/write functions inside a simple "IOFile" class. Reading, writing, and error checking became simpler in most cases. It should be near impossible to forget to close a file now that the destructor takes care of it. (I hope this fixes Issue 3635) I have tested the functionality of most things, but it is possible I broke something. :p

Browse Source 
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7328 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Jordan Woyak
2011-03-11 10:21:46 +00:00
parent 4f69672b2b
commit 59fd1008ca
68 changed files with 1112 additions and 1154 deletions
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120
Source/Core/Common/Src/SysConf.cpp
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@ -57,29 +57,32 @@ bool SysConf::LoadFromFile(const char *filename)
else
return false;
}
FILE* f = fopen(filename, "rb");
if (f == NULL)
return false;
bool result = LoadFromFileInternal(f);
if (result)
m_Filename = filename;
fclose(f);
return result;
File::IOFile f(filename, "rb");
if (f.IsOpen())
{
if (LoadFromFileInternal(f.ReleaseHandle()))
{
m_Filename = filename;
return true;
}
}
return false;
}
bool SysConf::LoadFromFileInternal(FILE *f)
bool SysConf::LoadFromFileInternal(File::IOFile f)
{
// Fill in infos
SSysConfHeader s_Header;
if (fread(&s_Header.version, sizeof(s_Header.version), 1, f) != 1) return false;
if (fread(&s_Header.numEntries, sizeof(s_Header.numEntries), 1, f) != 1) return false;
f.ReadArray(s_Header.version, 4);
f.ReadArray(&s_Header.numEntries, 1);
s_Header.numEntries = Common::swap16(s_Header.numEntries) + 1;
for (u16 index = 0; index < s_Header.numEntries; index++)
{
SSysConfEntry tmpEntry;
if (fread(&tmpEntry.offset, sizeof(tmpEntry.offset), 1, f) != 1) return false;
f.ReadArray(&tmpEntry.offset, 1);
tmpEntry.offset = Common::swap16(tmpEntry.offset);
m_Entries.push_back(tmpEntry);
}
@ -89,52 +92,62 @@ bool SysConf::LoadFromFileInternal(FILE *f)
i < m_Entries.end() - 1; i++)
{
SSysConfEntry& curEntry = *i;
if (fseeko(f, curEntry.offset, SEEK_SET) != 0) return false;
f.Seek(curEntry.offset, SEEK_SET);
u8 description = 0;
if (fread(&description, sizeof(description), 1, f) != 1) return false;
f.ReadArray(&description, 1);
// Data type
curEntry.type = (SysconfType)((description & 0xe0) >> 5);
// Length of name in bytes - 1
curEntry.nameLength = (description & 0x1f) + 1;
// Name
if (fread(&curEntry.name, curEntry.nameLength, 1, f) != 1) return false;
f.ReadArray(curEntry.name, curEntry.nameLength);
curEntry.name[curEntry.nameLength] = '\0';
// Get length of data
curEntry.dataLength = 0;
switch (curEntry.type)
{
case Type_BigArray:
if (fread(&curEntry.dataLength, 2, 1, f) != 1) return false;
f.ReadArray(&curEntry.dataLength, 1);
curEntry.dataLength = Common::swap16(curEntry.dataLength);
break;
case Type_SmallArray:
if (fread(&curEntry.dataLength, 1, 1, f) != 1) return false;
{
u8 dlength = 0;
f.ReadBytes(&dlength, 1);
curEntry.dataLength = dlength;
break;
}
case Type_Byte:
case Type_Bool:
curEntry.dataLength = 1;
break;
case Type_Short:
curEntry.dataLength = 2;
break;
case Type_Long:
curEntry.dataLength = 4;
break;
default:
PanicAlertT("Unknown entry type %i in SYSCONF (%s@%x)!",
curEntry.type, curEntry.name, curEntry.offset);
return false;
break;
}
// Fill in the actual data
if (curEntry.dataLength)
{
curEntry.data = new u8[curEntry.dataLength];
if (fread(curEntry.data, curEntry.dataLength, 1, f) != 1) return false;
f.ReadArray(curEntry.data, curEntry.dataLength);
}
}
return true;
return f.IsGood();
}
// Returns the size of the item in file
@ -294,88 +307,87 @@ void SysConf::GenerateSysConf()
m_Entries.push_back(items[i]);
File::CreateFullPath(m_FilenameDefault);
FILE *g = fopen(m_FilenameDefault.c_str(), "wb");
File::IOFile g(m_FilenameDefault, "wb");
// Write the header and item offsets
fwrite(&s_Header.version, sizeof(s_Header.version), 1, g);
fwrite(&s_Header.numEntries, sizeof(u16), 1, g);
for (int i = 0; i < 27; ++i)
g.WriteArray(&s_Header.version, 1);
g.WriteArray(&s_Header.numEntries, 1);
for (int i = 0; i != 27; ++i)
{
u16 tmp_offset = Common::swap16(items[i].offset);
fwrite(&tmp_offset, 2, 1, g);
const u16 tmp_offset = Common::swap16(items[i].offset);
g.WriteArray(&tmp_offset, 1);
}
const u16 end_data_offset = Common::swap16(current_offset);
fwrite(&end_data_offset, 2, 1, g);
g.WriteArray(&end_data_offset, 1);
// Write the items
const u8 null_byte = 0;
for (int i = 0; i < 27; ++i)
for (int i = 0; i != 27; ++i)
{
u8 description = (items[i].type << 5) | (items[i].nameLength - 1);
fwrite(&description, sizeof(description), 1, g);
fwrite(&items[i].name, items[i].nameLength, 1, g);
g.WriteArray(&description, 1);
g.WriteArray(&items[i].name, items[i].nameLength);
switch (items[i].type)
{
case Type_BigArray:
{
u16 tmpDataLength = Common::swap16(items[i].dataLength);
fwrite(&tmpDataLength, 2, 1, g);
fwrite(items[i].data, items[i].dataLength, 1, g);
fwrite(&null_byte, 1, 1, g);
const u16 tmpDataLength = Common::swap16(items[i].dataLength);
g.WriteArray(&tmpDataLength, 1);
g.WriteBytes(items[i].data, items[i].dataLength);
g.WriteArray(&null_byte, 1);
}
break;
case Type_SmallArray:
fwrite(&items[i].dataLength, 1, 1, g);
fwrite(items[i].data, items[i].dataLength, 1, g);
fwrite(&null_byte, 1, 1, g);
g.WriteArray(&items[i].dataLength, 1);
g.WriteBytes(items[i].data, items[i].dataLength);
g.WriteBytes(&null_byte, 1);
break;
default:
fwrite(items[i].data, items[i].dataLength, 1, g);
g.WriteBytes(items[i].data, items[i].dataLength);
break;
}
}
// Pad file to the correct size
const u64 cur_size = File::GetSize(g);
for (unsigned int i = 0; i < 16380 - cur_size; ++i)
fwrite(&null_byte, 1, 1, g);
const u64 cur_size = g.GetSize();
for (unsigned int i = 0; i != 16380 - cur_size; ++i)
g.WriteBytes(&null_byte, 1);
// Write the footer
const char footer[5] = "SCed";
fwrite(&footer, 4, 1, g);
g.WriteBytes("SCed", 4);
fclose(g);
m_Filename = m_FilenameDefault;
}
bool SysConf::SaveToFile(const char *filename)
{
FILE *f = fopen(filename, "r+b");
if (f == NULL)
return false;
File::IOFile f(filename, "r+b");
for (std::vector<SSysConfEntry>::iterator i = m_Entries.begin();
i < m_Entries.end() - 1; i++)
{
// Seek to after the name of this entry
if (fseeko(f, i->offset + i->nameLength + 1, SEEK_SET) != 0) return false;
f.Seek(i->offset + i->nameLength + 1, SEEK_SET);
// We may have to write array length value...
if (i->type == Type_BigArray)
{
u16 tmpDataLength = Common::swap16(i->dataLength);
if (fwrite(&tmpDataLength, 2, 1, f) != 1) return false;
const u16 tmpDataLength = Common::swap16(i->dataLength);
f.WriteArray(&tmpDataLength, 1);
}
else if (i->type == Type_SmallArray)
{
if (fwrite(&i->dataLength, 1, 1, f) != 1) return false;
const u8 len = i->dataLength;
f.WriteArray(&len, 1);
}
// Now write the actual data
if (fwrite(i->data, i->dataLength, 1, f) != 1) return false;
f.WriteBytes(i->data, i->dataLength);
}
fclose(f);
return true;
return f.IsGood();
}
bool SysConf::Save()