Always establish and maintain clear ownership semantics in concurrent code to prevent data races. This includes: 1. Use RAII patterns for resource management (especially locks)
Always establish and maintain clear ownership semantics in concurrent code to prevent data races. This includes:
Example of proper RAII lock usage:
void DynamicTexture::reserveSize(const Size& size, int32_t uniqueId) {
std::lock_guard<std::mutex> guard(mutex); // RAII lock
// ... protected operations ...
} // Auto-unlock on scope exit
// Instead of:
void DynamicTexture::reserveSize(const Size& size, int32_t uniqueId) {
mutex.lock();
// ... operations that might throw ...
mutex.unlock(); // Might never be reached!
}
For shared data access:
// Avoid:
std::string_view getData() {
std::shared_lock<std::shared_mutex> lock(mutex);
return string_view{buffer.data()}; // Dangerous! View might outlive lock
}
// Prefer:
std::string getData() {
std::shared_lock<std::shared_mutex> lock(mutex);
return std::string{buffer}; // Safe copy
}
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