Replace signal-based abort handling by query-based handling

The abort handling is currently only used to process Ctrl-C from Matlab.
Since Matlab R2019a, it appears that calling utIsInterruptPending() from
a thread other than the main thread will crash. The previous approach of
checking utIsInterruptPending() in a thread, and then signalling the running
algorithm was therefore broken.

1 files changed, 14 insertions, 0 deletions

diff --git a/src/Globals.cpp b/src/Globals.cpp
index b983e3c..5f32482 100644
--- a/src/Globals.cpp
+++ b/src/Globals.cpp
@@ -40,5 +40,19 @@ _AstraExport bool cudaAvailable() {
 #endif
 }
 
+
+static bool (*pShouldAbortHook)(void) = 0;
+
+void setShouldAbortHook(bool (*_pShouldAbortHook)(void)) {
+	pShouldAbortHook = _pShouldAbortHook;
+}
+
+bool shouldAbort() {
+	if (pShouldAbortHook && (*pShouldAbortHook)())
+		return true;
+
+	return false;
+}
+
 }