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-rw-r--r--src/libstore/binary-cache-store.cc26
-rw-r--r--src/libstore/build.cc6
-rw-r--r--src/libstore/local-store.cc8
-rw-r--r--src/libutil/serialise.cc4
-rw-r--r--src/libutil/serialise.hh4
5 files changed, 25 insertions, 23 deletions
diff --git a/src/libstore/binary-cache-store.cc b/src/libstore/binary-cache-store.cc
index 02e73d2ce..01d937f2e 100644
--- a/src/libstore/binary-cache-store.cc
+++ b/src/libstore/binary-cache-store.cc
@@ -28,7 +28,7 @@ BinaryCacheStore::BinaryCacheStore(std::shared_ptr<Store> localStore,
StringSink sink;
sink << narVersionMagic1;
- narMagic = sink.s;
+ narMagic = *sink.s;
}
void BinaryCacheStore::init()
@@ -200,14 +200,16 @@ Paths BinaryCacheStore::importPaths(bool requireSignature, Source & source,
struct TeeSource : Source
{
Source & readSource;
- std::string data;
- TeeSource(Source & readSource) : readSource(readSource)
+ ref<std::string> data;
+ TeeSource(Source & readSource)
+ : readSource(readSource)
+ , data(make_ref<std::string>())
{
}
size_t read(unsigned char * data, size_t len)
{
size_t n = readSource.read(data, len);
- this->data.append((char *) data, n);
+ this->data->append((char *) data, n);
return n;
}
};
@@ -257,7 +259,7 @@ Path BinaryCacheStore::addToStore(const string & name, const Path & srcPath,
Hash h;
if (recursive) {
dumpPath(srcPath, sink, filter);
- h = hashString(hashAlgo, sink.s);
+ h = hashString(hashAlgo, *sink.s);
} else {
auto s = readFile(srcPath);
dumpString(s, sink);
@@ -268,7 +270,7 @@ Path BinaryCacheStore::addToStore(const string & name, const Path & srcPath,
info.path = makeFixedOutputPath(recursive, hashAlgo, h, name);
if (repair || !isValidPath(info.path))
- addToCache(info, sink.s);
+ addToCache(info, *sink.s);
return info.path;
}
@@ -283,7 +285,7 @@ Path BinaryCacheStore::addTextToStore(const string & name, const string & s,
if (repair || !isValidPath(info.path)) {
StringSink sink;
dumpString(s, sink);
- addToCache(info, sink.s);
+ addToCache(info, *sink.s);
}
return info.path;
@@ -313,7 +315,7 @@ void BinaryCacheStore::buildPaths(const PathSet & paths, BuildMode buildMode)
StringSink sink;
dumpPath(storePath, sink);
- addToCache(info, sink.s);
+ addToCache(info, *sink.s);
}
}
@@ -352,8 +354,7 @@ struct BinaryCacheStoreAccessor : public FSAccessor
StringSink sink;
store->exportPath(storePath, false, sink);
- // FIXME: gratuitous string copying.
- auto accessor = makeNarAccessor(make_ref<std::string>(sink.s));
+ auto accessor = makeNarAccessor(sink.s);
nars.emplace(storePath, accessor);
return {accessor, restPath};
}
@@ -412,12 +413,11 @@ Path BinaryCacheStore::importPath(Source & source, std::shared_ptr<FSAccessor> a
bool haveSignature = readInt(source) == 1;
assert(!haveSignature);
- addToCache(info, tee.data);
+ addToCache(info, *tee.data);
auto accessor_ = std::dynamic_pointer_cast<BinaryCacheStoreAccessor>(accessor);
if (accessor_)
- // FIXME: more gratuitous string copying
- accessor_->nars.emplace(info.path, makeNarAccessor(make_ref<std::string>(tee.data)));
+ accessor_->nars.emplace(info.path, makeNarAccessor(tee.data));
return info.path;
}
diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index 7d124f6f0..ed4e0f659 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -2009,7 +2009,7 @@ void DerivationGoal::startBuilder()
throw SysError(format("linking ‘%1%’ to ‘%2%’") % p % i);
StringSink sink;
dumpPath(i, sink);
- StringSource source(sink.s);
+ StringSource source(*sink.s);
restorePath(p, source);
}
}
@@ -2666,8 +2666,8 @@ void DerivationGoal::registerOutputs()
StringSink sink;
dumpPath(actualPath, sink);
deletePath(actualPath);
- sink.s = rewriteHashes(sink.s, rewritesFromTmp);
- StringSource source(sink.s);
+ sink.s = make_ref<std::string>(rewriteHashes(*sink.s, rewritesFromTmp));
+ StringSource source(*sink.s);
restorePath(actualPath, source);
rewritten = true;
diff --git a/src/libstore/local-store.cc b/src/libstore/local-store.cc
index 9a5706681..8a2b7bb91 100644
--- a/src/libstore/local-store.cc
+++ b/src/libstore/local-store.cc
@@ -1415,9 +1415,9 @@ Path LocalStore::addToStore(const string & name, const Path & _srcPath,
if (recursive)
dumpPath(srcPath, sink, filter);
else
- sink.s = readFile(srcPath);
+ sink.s = make_ref<std::string>(readFile(srcPath));
- return addToStoreFromDump(sink.s, name, recursive, hashAlgo, repair);
+ return addToStoreFromDump(*sink.s, name, recursive, hashAlgo, repair);
}
@@ -1442,14 +1442,14 @@ Path LocalStore::addTextToStore(const string & name, const string & s,
StringSink sink;
dumpString(s, sink);
- auto hash = hashString(htSHA256, sink.s);
+ auto hash = hashString(htSHA256, *sink.s);
optimisePath(dstPath);
ValidPathInfo info;
info.path = dstPath;
info.narHash = hash;
- info.narSize = sink.s.size();
+ info.narSize = sink.s->size();
info.references = references;
registerValidPath(info);
}
diff --git a/src/libutil/serialise.cc b/src/libutil/serialise.cc
index a3cd4ff0d..5c45c890f 100644
--- a/src/libutil/serialise.cc
+++ b/src/libutil/serialise.cc
@@ -288,11 +288,11 @@ template PathSet readStrings(Source & source);
void StringSink::operator () (const unsigned char * data, size_t len)
{
static bool warned = false;
- if (!warned && s.size() > threshold) {
+ if (!warned && s->size() > threshold) {
warnLargeDump();
warned = true;
}
- s.append((const char *) data, len);
+ s->append((const char *) data, len);
}
diff --git a/src/libutil/serialise.hh b/src/libutil/serialise.hh
index 0fdc4037b..9ba6391f8 100644
--- a/src/libutil/serialise.hh
+++ b/src/libutil/serialise.hh
@@ -110,7 +110,9 @@ private:
/* A sink that writes data to a string. */
struct StringSink : Sink
{
- string s;
+ ref<std::string> s;
+ StringSink() : s(make_ref<std::string>()) { };
+ StringSink(ref<std::string> s) : s(s) { };
void operator () (const unsigned char * data, size_t len) override;
};