Create 5

5_Multithreaded-Programming/data_structures.h

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+// data_structures.h
+#ifndef DATA_STRUCTURES_H
+#define DATA_STRUCTURES_H
+
+#include <pthread.h>   // For pthread_t, though not strictly needed in Program 2 if monitor is in main
+#include <semaphore.h> // For sem_t
+#include <time.h>	   // For time_t (optional)
+
+#define NUM_WORKSHOPS 10
+#define SHM_NAME "/workshop_monitoring_shm"
+#define SEM_MUTEX_NAME "/workshop_monitoring_mutex_sem"
+
+// Min/Max values for simulation
+#define MIN_TEMP 10.0f
+#define MAX_TEMP 40.0f
+#define MIN_HUMIDITY 20.0f
+#define MAX_HUMIDITY 80.0f
+
+// Interval for workshop data generation (seconds)
+#define WORKSHOP_UPDATE_INTERVAL 2
+// Interval for monitoring display (seconds)
+#define MONITOR_DISPLAY_INTERVAL 5
+
+typedef struct {
+	int workshop_id;
+	float temperature;
+	float humidity;
+	// time_t last_updated; // Optional: timestamp of last update
+} WorkshopData;
+
+typedef struct {
+	WorkshopData workshops[NUM_WORKSHOPS];
+	// Could add a generation counter or other metadata if needed
+	// int data_ready_count; // Could be used with condition variables if within one process
+} SharedData;
+
+#endif // DATA_STRUCTURES_H