From e5fcad302d86d316390c6b0f62759a067313e8a9 Mon Sep 17 00:00:00 2001 From: Lars Knoll Date: Mon, 23 Mar 2009 10:18:55 +0100 Subject: Long live Qt 4.5! --- .../code/src_corelib_kernel_qsystemsemaphore.cpp | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 doc/src/snippets/code/src_corelib_kernel_qsystemsemaphore.cpp (limited to 'doc/src/snippets/code/src_corelib_kernel_qsystemsemaphore.cpp') 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] -- cgit v1.2.1