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Diffstat (limited to 'packages/Python/lldbsuite/test/functionalities/thread/thread_exit/main.cpp')
-rw-r--r-- | packages/Python/lldbsuite/test/functionalities/thread/thread_exit/main.cpp | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/functionalities/thread/thread_exit/main.cpp b/packages/Python/lldbsuite/test/functionalities/thread/thread_exit/main.cpp new file mode 100644 index 0000000..e498db7 --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/thread/thread_exit/main.cpp @@ -0,0 +1,85 @@ +//===-- main.cpp ------------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// This test verifies the correct handling of child thread exits. + +#include <atomic> +#include <thread> + +// Note that although hogging the CPU while waiting for a variable to change +// would be terrible in production code, it's great for testing since it +// avoids a lot of messy context switching to get multiple threads synchronized. +#define do_nothing() + +#define pseudo_barrier_wait(bar) \ + --bar; \ + while (bar > 0) \ + do_nothing(); + +#define pseudo_barrier_init(bar, count) (bar = count) + +std::atomic_int g_barrier1; +std::atomic_int g_barrier2; +std::atomic_int g_barrier3; + +void * +thread1 () +{ + // Synchronize with the main thread. + pseudo_barrier_wait(g_barrier1); + + // Synchronize with the main thread and thread2. + pseudo_barrier_wait(g_barrier2); + + // Return + return NULL; // Set second breakpoint here +} + +void * +thread2 () +{ + // Synchronize with thread1 and the main thread. + pseudo_barrier_wait(g_barrier2); + + // Synchronize with the main thread. + pseudo_barrier_wait(g_barrier3); + + // Return + return NULL; +} + +int main () +{ + pseudo_barrier_init(g_barrier1, 2); + pseudo_barrier_init(g_barrier2, 3); + pseudo_barrier_init(g_barrier3, 2); + + // Create a thread. + std::thread thread_1(thread1); + + // Wait for thread1 to start. + pseudo_barrier_wait(g_barrier1); + + // Create another thread. + std::thread thread_2(thread2); // Set first breakpoint here + + // Wait for thread2 to start. + pseudo_barrier_wait(g_barrier2); + + // Wait for the first thread to finish + thread_1.join(); + + // Synchronize with the remaining thread + pseudo_barrier_wait(g_barrier3); // Set third breakpoint here + + // Wait for the second thread to finish + thread_2.join(); + + return 0; // Set fourth breakpoint here +} |