linux进程通信心得体会

#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>

int shared_data = 0;
pthread_mutex_t mutex;

void* thread_func(void* arg) {
    pthread_mutex_lock(&mutex);
    shared_data++;
    pthread_mutex_unlock(&mutex);
    return NULL;
}

int main() {
    pthread_t thread1, thread2;
    pthread_mutex_init(&mutex, NULL);

    pthread_create(&thread1, NULL, thread_func, NULL);
    pthread_create(&thread2, NULL, thread_func, NULL);

    pthread_join(thread1, NULL);
    pthread_join(thread2, NULL);

    printf("Shared data: %d\n", shared_data);
    pthread_mutex_destroy(&mutex);
    return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <sys/ipc.h>
#include <sys/msg.h>

struct msg_buffer {
    long msg_type;
    char msg_text[100];
} message;

int main() {
    key_t key = ftok("progfile", 65);
    int msgid = msgget(key, 0666 | IPC_CREAT);

    message.msg_type = 1;
    strcpy(message.msg_text, "Hello, World!");

    msgsnd(msgid, &message, sizeof(message.msg_text), 0);

    msgrcv(msgid, &message, sizeof(message.msg_text), 1, 0);
    printf("Received message: %s\n", message.msg_text);

    msgctl(msgid, IPC_RMID, NULL);
    return 0;
}