thread_context.h File Reference

Thread-local context management for request tracking and distributed tracing. More...

#include <string>
#include <chrono>
#include <optional>
#include <unordered_map>
#include <memory>

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Classes
struct	kcenon::monitoring::context_metadata
	Context metadata for thread-specific information. More...
struct	kcenon::monitoring::thread_context_data
	Enhanced thread context data for comprehensive request and trace tracking. More...
class	kcenon::monitoring::thread_context
	Thread-local context management for request tracking. More...

Namespaces
namespace	kcenon
namespace	kcenon::monitoring

Detailed Description

Thread-local context management for request tracking and distributed tracing.

Provides thread-local storage for request metadata (request IDs, correlation IDs, trace/span IDs) enabling distributed tracing and per-request diagnostics across the monitoring system.

Uses thread_context as the primary API with pointer-based thread-local storage.

Thread Safety

Each thread has its own independent context via thread_local storage. No cross-thread synchronization is needed for context operations.

// Set up context for an incoming request
auto& ctx = thread_context::create("req-12345");
ctx.correlation_id = "corr-67890";
ctx.add_tag("service", "monitoring");
 
// Later, retrieve the context
if (auto* ctx = thread_context::current()) {
    log("Processing request: " + ctx->request_id);
}
 
// Clean up when done
thread_context::clear();

Author

kcenon

Since

1.0.0

See also

distributed_tracer For span-level tracing integration

performance_monitor For metrics correlated with request contexts

Definition in file thread_context.h.