From e9b4f8e38998813df7601651898672ae10b2bc5b Mon Sep 17 00:00:00 2001 From: PowerUser64 Date: Tue, 19 Nov 2024 15:08:22 -0800 Subject: [PATCH] mutex(fix): prevent race condition (part 2) In addition to the previous commit, this commit makes threads need to wait for the thread manager to say it took the mutex from them before they can ask for it again. --- main.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/main.cpp b/main.cpp index ca4be50..49cea53 100644 --- a/main.cpp +++ b/main.cpp @@ -56,9 +56,10 @@ void *thread_task_increment(const struct thread_data &thread) { { // tell the thread manager we want the mutex + while (!*thread.manager_took_mutex) (*thread.wants_mutex) = true; // block until we have the mutex - while (!*thread.has_mutex && *thread.manager_took_mutex) + while (!*thread.has_mutex) ; // enter the mutex