银行家算法 C语言设计交互界面 codeblock

以下是一个简单的银行家算法C语言实现的交互界面，使用CodeBlocks编写：

#include <stdio.h>

#define MAX_RESOURCES 10

int available[MAX_RESOURCES];
int allocation[MAX_RESOURCES][MAX_RESOURCES];
int need[MAX_RESOURCES][MAX_RESOURCES];
int processes_count;

void init() {
    printf("Enter the number of processes: ");
    scanf("%d", &processes_count);

    printf("Enter the number of available resources: ");
    int resources_count;
    scanf("%d", &resources_count);

    printf("Enter the available resources:\n");
    for (int i = 0; i < resources_count; i++) {
        scanf("%d", &available[i]);
    }

    printf("Enter the allocation matrix:\n");
    for (int i = 0; i < processes_count; i++) {
        for (int j = 0; j < resources_count; j++) {
            scanf("%d", &allocation[i][j]);
            need[i][j] = allocation[i][j];
            available[j] -= allocation[i][j];
        }
    }

    printf("Initialization complete.\n");
}

int request_resources(int process_id, int request[]) {
    for (int i = 0; i < MAX_RESOURCES; i++) {
        if (request[i] > need[process_id][i]) {
            printf("Request exceeds need.\n");
            return 0;
        }
        if (request[i] > available[i]) {
            printf("Request exceeds available resources.\n");
            return 0;
        }
    }

    for (int i = 0; i < MAX_RESOURCES; i++) {
        available[i] -= request[i];
        allocation[process_id][i] += request[i];
        need[process_id][i] -= request[i];
    }

    printf("Request granted.\n");
    return 1;
}

int release_resources(int process_id, int release[]) {
    for (int i = 0; i < MAX_RESOURCES; i++) {
        if (release[i] > allocation[process_id][i]) {
            printf("Release exceeds allocation.\n");
            return 0;
        }
    }

    for (int i = 0; i < MAX_RESOURCES; i++) {
        available[i] += release[i];
        allocation[process_id][i] -= release[i];
        need[process_id][i] += release[i];
    }

    printf("Resources released.\n");
    return 1;
}

void print_state() {
    printf("Available resources:\n");
    for (int i = 0; i < MAX_RESOURCES; i++) {
        printf("%d ", available[i]);
    }
    printf("\n");

    printf("Allocation matrix:\n");
    for (int i = 0; i < processes_count; i++) {
        for (int j = 0; j < MAX_RESOURCES; j++) {
            printf("%d ", allocation[i][j]);
        }
        printf("\n");
    }

    printf("Need matrix:\n");
    for (int i = 0; i < processes_count; i++) {
        for (int j = 0; j < MAX_RESOURCES; j++) {
            printf("%d ", need[i][j]);
        }
        printf("\n");
    }
}

int main() {
    init();

    while (1) {
        printf("\nEnter command (request, release, state, quit): ");
        char command[10];
        scanf("%s", command);

        if (strcmp(command, "request") == 0) {
            int process_id;
            printf("Enter process id: ");
            scanf("%d", &process_id);

            int request[MAX_RESOURCES];
            printf("Enter request: ");
            for (int i = 0; i < MAX_RESOURCES; i++) {
                scanf("%d", &request[i]);
            }

            request_resources(process_id, request);
        } else if (strcmp(command, "release") == 0) {
            int process_id;
            printf("Enter process id: ");
            scanf("%d", &process_id);

            int release[MAX_RESOURCES];
            printf("Enter release: ");
            for (int i = 0; i < MAX_RESOURCES; i++) {
                scanf("%d", &release[i]);
            }

            release_resources(process_id, release);
        } else if (strcmp(command, "state") == 0) {
            print_state();
        } else if (strcmp(command, "quit") == 0) {
            break;
        } else {
            printf("Invalid command.\n");
        }
    }

    return 0;
}

该程序实现了银行家算法的初始化、请求资源、释放资源和打印当前状态等功能。用户可以通过命令行输入不同的命令与程序进行交互。