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Make LocalStore thread-safe

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Necessary for multi-threaded commands like "nix verify-paths".
This commit is contained in:
Eelco Dolstra 2016-04-08 18:07:13 +02:00
parent 05fbc606fc
commit f398949b40
5 changed files with 246 additions and 217 deletions
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6
src/libutil/sync.hh
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@ -22,11 +22,11 @@ namespace nix {
scope.
*/
template<class T>
template<class T, class M = std::mutex>
class Sync
{
private:
std::mutex mutex;
M mutex;
T data;
public:
@ -38,7 +38,7 @@ public:
{
private:
Sync * s;
std::unique_lock<std::mutex> lk;
std::unique_lock<M> lk;
friend Sync;
Lock(Sync * s) : s(s), lk(s->mutex) { }
public: