Long live Qt 4.5!

1 files changed, 21 insertions, 0 deletions

diff --git a/doc/src/snippets/code/src_corelib_kernel_qsystemsemaphore.cpp b/doc/src/snippets/code/src_corelib_kernel_qsystemsemaphore.cpp
new file mode 100644
index 0000000000..cd5665f276
--- /dev/null
+++ b/doc/src/snippets/code/src_corelib_kernel_qsystemsemaphore.cpp
@@ -0,0 +1,21 @@
+//! [0]
+QSystemSemaphore sem("market", 3, QSystemSemaphore::Create);
+                             // resources available == 3
+sem.acquire();               // resources available == 2
+sem.acquire();               // resources available == 1
+sem.acquire();               // resources available == 0
+sem.release();               // resources available == 1
+sem.release(2);              // resources available == 3
+//! [0]
+
+
+//! [1]
+QSystemSemaphore sem("market", 5, QSystemSemaphore::Create);
+sem.acquire(5);           // acquire all 5 resources
+sem.release(5);           // release the 5 resources
+//! [1]
+
+
+//! [2]
+sem.release(10);          // "create" 10 new resources
+//! [2]