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* Make dbRefs a mapping from Hash to [Path].

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This commit is contained in:
Eelco Dolstra 2003-07-07 09:25:26 +00:00
parent 609a224848
commit 5895c160c4
11 changed files with 172 additions and 49 deletions
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57
src/db.cc
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@ -73,6 +73,40 @@ bool queryDB(const string & filename, const string & dbname,
}
bool queryListDB(const string & filename, const string & dbname,
const string & key, Strings & data)
{
string d;
if (!queryDB(filename, dbname, key, d))
return false;
string::iterator it = d.begin();
while (it != d.end()) {
if (it + 4 > d.end())
throw Error(format("short db entry: `%1%'") % d);
unsigned int len;
len = (unsigned char) *it++;
len |= ((unsigned char) *it++) << 8;
len |= ((unsigned char) *it++) << 16;
len |= ((unsigned char) *it++) << 24;
if (it + len > d.end())
throw Error(format("short db entry: `%1%'") % d);
string s;
while (len--) s += *it++;
data.push_back(s);
}
return true;
}
void setDB(const string & filename, const string & dbname,
const string & key, const string & data)
{
@ -85,6 +119,29 @@ void setDB(const string & filename, const string & dbname,
}
void setListDB(const string & filename, const string & dbname,
const string & key, const Strings & data)
{
string d;
for (Strings::const_iterator it = data.begin();
it != data.end(); it++)
{
string s = *it;
unsigned int len = s.size();
d += len & 0xff;
d += (len >> 8) & 0xff;
d += (len >> 16) & 0xff;
d += (len >> 24) & 0xff;
d += s;
}
setDB(filename, dbname, key, d);
}
void delDB(const string & filename, const string & dbname,
const string & key)
{