More reliable updater wake-up.

[dcpomatic.git] / src / lib / update.cc

diff --git a/src/lib/update.cc b/src/lib/update.cc
index 6e5f92edc9eee06d9ea86a56502312bcfd1e6d08..a98ee5b5d6bd8b52331831a1a101e0ccf0e21f20 100644 (file)
--- a/src/lib/update.cc
+++ b/src/lib/update.cc
@@ -48,6 +48,7 @@ UpdateChecker::UpdateChecker ()
        , _curl (0)
        , _state (NOT_RUN)
        , _emits (0)
+       , _to_do (0)
 {
        curl_global_init (CURL_GLOBAL_ALL);
        _curl = curl_easy_init ();
@@ -76,6 +77,7 @@ void
 UpdateChecker::run ()
 {
        boost::mutex::scoped_lock lm (_process_mutex);
+       _to_do++;
        _condition.notify_one ();
 }
 
@@ -84,7 +86,10 @@ UpdateChecker::thread ()
 {
        while (1) {
                boost::mutex::scoped_lock lock (_process_mutex);
-               _condition.wait (lock);
+               while (_to_do == 0) {
+                       _condition.wait (lock);
+               }
+               --_to_do;
                lock.unlock ();
                
                try {