Signals

Parte 1

kill( atoi(argv[1]), atoi(argv[2]));

Parte 2

signal(SIGHUP, signal_callback_handler);

signal(SIGILL, signal_callback_handler);

signal(SIGBUS, signal_callback_handler);

$ ./handler

Running...

Running...

Running...

Caught signal 4

Running...

Running...

Running...

Caught signal 1

Process finished with exit code 1

$ ./raiser 4 10527

Sent signal 4 to process 10527

Process finished with exit code 0

 

$ ./raiser 1 10527

Sent signal 1 to process 4

Process finished with exit code 0

Execução

Pipe

int pd[2];

pipe(pd);

void producer(int iterations, int file)

FILE *pipe_wr_end = fdopen(file, "w");

product += rand() % 100;

string pd = to_string(product) + " ";

sent = fprintf(pipe_wr_end, "%s", pd.c_str());

fprintf(pipe_wr_end, "%d", 0);

void consumer(int file)

fscanf(pipe_rd_end, "%c", &cnumber);

fclose(pipe_rd_end);

FILE *pipe_rd_end = fdopen(file, "r");

$ ./cpwpipes 10

Product sent[3]: 83

Product sent[4]: 169

Product sent[4]: 246

Product sent[4]: 261

Product sent[4]: 354

Product sent[4]: 389

Product sent[4]: 475

Product sent[4]: 567

Product sent[4]: 616

Product sent[4]: 637

 

Consumer got 83, which is prime.

Consumer got 169, which isn't prime.

Consumer got 246, which isn't prime.

Consumer got 261, which isn't prime.

Consumer got 354, which isn't prime.

Consumer got 389, which is prime.

Consumer got 475, which isn't prime.

Consumer got 567, which isn't prime.

Consumer got 616, which isn't prime.

Consumer got 637, which isn't prime.

Terminating consumption.

Process finished with exit code 0

Execução

Socket

socket(family, socktype,protocol)

Server

sockfd = socket(family, socktype,protocol)

listen(sockfd, BACKLOG)

new_fd = accept(sockfd, &their_addr, &sin_size);

send(new_fd, prod, strlen(prod), 0)

recv(new_fd, buf, MAXDATASIZE - 1, 0)

Client

sockfd = socket(family, socktype,protocol)

connect(sockfd, p->ai_addr, p->ai_addrlen)

send(sockfd, sendmsg, strlen(sendmsg), 0)

recv(sockfd, buf, MAXDATASIZE - 1, 0)

if (isPrime(atoi(buf))

$ ./server 10

Server: waiting for connections...

Server: got connection from 127.0.0.1

Server: received 'Hello There!'

Server: sent '183'

Server: received '183 isn't prime.'

...

Server: sent '667'

Server: received '667 isn't prime.'

Server: sent '716'

Server: received '716 isn't prime.'

...

$ ./client 0

client: connecting to 0.0.0.0

client: received '183', which isn't prime.

...

client: received '667', which isn't prime.

client: received '716', which isn't prime.

client: received '737', which isn't prime.

client: received '0',

Terminating consumption.

Process finished with exit code 0

 

Execução