X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fpbd%2Fsemutils.cc;h=cf7b54d30e2babd036853a29ebc87d2e284e48f1;hb=e97b7bb924bd4ae6a7ca2f3c1e19dafd5294718f;hp=48fdd249f60f9e8879ef1c69a26323ad1dcb0e76;hpb=1676789907b95aa8d5bf6cc2ce62aa66a80b9aae;p=ardour.git

diff --git a/libs/pbd/semutils.cc b/libs/pbd/semutils.cc
index 48fdd249f6..cf7b54d30e 100644
--- a/libs/pbd/semutils.cc
+++ b/libs/pbd/semutils.cc
@@ -23,7 +23,12 @@ using namespace PBD;
 
 ProcessSemaphore::ProcessSemaphore (const char* name, int val)
 {
-#ifdef __APPLE__
+#ifdef PLATFORM_WINDOWS
+	if ((_sem = CreateSemaphore(NULL, val, 32767, name)) == NULL) {
+		throw failed_constructor ();
+	}
+
+#elif __APPLE__
 	if ((_sem = sem_open (name, O_CREAT, 0600, val)) == (sem_t*) SEM_FAILED) {
 		throw failed_constructor ();
 	}
@@ -45,7 +50,28 @@ ProcessSemaphore::ProcessSemaphore (const char* name, int val)
 
 ProcessSemaphore::~ProcessSemaphore ()
 {
-#ifdef __APPLE__
+#ifdef PLATFORM_WINDOWS
+	CloseHandle(_sem);
+#elif __APPLE__
 	sem_close (ptr_to_sem());
 #endif
 }
+
+#ifdef PLATFORM_WINDOWS
+
+int
+ProcessSemaphore::signal ()
+{
+	// non-zero on success, opposite to posix
+	return !ReleaseSemaphore(_sem, 1, NULL);
+}
+
+int
+ProcessSemaphore::wait ()
+{
+	DWORD result = 0;
+	result = WaitForSingleObject(_sem, INFINITE);
+	return (result == WAIT_OBJECT_0);
+}
+
+#endif