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lab_08_1.cpp
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lab_08_1.cpp
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#include <unistd.h>
#include <pthread.h>
#include <iostream>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include "getch.cpp"
using namespace std;
struct p_args
{
bool work;
int msgid;
};
struct TMessage {
long mtype;
char buff[256];
};
void *some_p1(void *arg)
{
cout << "Поток 1 начал работу" << endl;
p_args *temp = (p_args *)arg;
int status;
int data = 0;
int len;
int msgid = temp->msgid;
while (temp->work)
{
if (data == 4)
data = 0;
TMessage msg;
msg.mtype = 1;
int len = sprintf(msg.buff,"hello, %d", data);
status = msgsnd(msgid, &msg, len, IPC_NOWAIT);
if (status < 0)
{
cout << "Сообщение не было отправлено" << endl;
}
else
{
cout << "Отправлено: " << data << endl;
}
data += 1;
sleep(1);
}
cout << "Поток 1 закончил работу" << endl;
return 0;
}
int main()
{
pthread_t my_thread;
p_args args;
args.work = true;
int status = 0;
key_t key = ftok("lab_8",'A');
int msgid = msgget(key, 0);
if (msgid < 0)
{
msgid = msgget(key,0666 | IPC_CREAT);
}
msginfo test;
test.msgtql = 0;
msgctl(msgid, IPC_INFO, (msqid_ds*)&test);
cout << test.msgtql << endl;
// cout << test.msg_qbytes << endl;
args.msgid = msgid;
status = pthread_create(&my_thread, 0, some_p1, &args);
if (!status)
cout << "Поток 1 создан\n";
else
cout << "Ошибка создания потока " << status << endl;
getch();
args.work = false;
pthread_join(my_thread, 0);
cout << "Поток 1 завершил работу" << endl;
// msgctl(msgid, IPC_RMID, NULL);
return 0;
}