shared.h


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#ifndef SHARED_H
#define SHARED_H

#include <pthread.h>

#define MAX_JOBS 100
#define MAX_PATH 256
#define MAX_NODES 4

#define SHM_NAME "/job_queue_shm"
#define SHM_NODE_STATUS "/node_status_shm"

typedef struct {
    pthread_mutex_t mutex;
    char jobs[MAX_JOBS][MAX_PATH];
    int head;
    int tail;
} JobQueue;

typedef struct {
    int node_id;
    int running_jobs;
    float load;  // from /proc/[pid]/stat or getloadavg()
} NodeStatus;

typedef struct {
    pthread_mutex_t mutex;
    NodeStatus statuses[MAX_NODES];
} NodeStatusArray;

#endif