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cnet_test.c
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cnet_test.c
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#include <stdio.h>
#include <assert.h>
#include <stdarg.h>
#include <stddef.h>
#include <setjmp.h>
#include <cmocka.h>
#include <stdbool.h>
#include <string.h>
#include "fd_pool.h"
#include "sockets.h"
#pragma GCC diagnostic ignored "-Wunused-parameter"
bool stop = false;
bool stopped = false;
void *test_socket_wrapper(void *data) {
socket_client_t *sock_client = (socket_client_t *)data;
while (stop == false) {
int sent = send(sock_client->socket_number, "hello", strlen("hello"), 0);
assert(sent == 5);
}
free_socket_client_t(sock_client);
stopped = true;
pthread_exit(NULL);
}
void test_fd_pool(void **state) {
typedef struct args {
int fds[10];
int num_fds;
bool tcp;
} args_t;
args_t tests[2];
tests[0].fds[0] = 1;
tests[0].fds[1] = 5;
tests[0].fds[2] = 10;
tests[0].num_fds = 3;
tests[0].tcp = true;
tests[1].fds[0] = 100;
tests[1].fds[1] = 150;
tests[1].fds[2] = 200;
tests[1].num_fds = 3;
tests[1].tcp = false;
fd_pool_t *fpool = new_fd_pool_t();
assert(fpool != NULL);
size_t want_tcp = 0;
// test tcp
for (int i = 0; i < tests[0].num_fds; i++) {
set_fd_pool_t(fpool, tests[0].fds[i], true);
want_tcp += 1;
assert(fpool->num_tcp_fds == want_tcp);
assert(fpool->num_udp_fds == 0);
bool is_set = is_set_fd_pool_t(fpool, tests[0].fds[i], true);
assert(is_set == true);
int buffer[10];
size_t buffer_len = 10;
memset(buffer, 0, 10);
int fd_count = get_all_fd_pool_t(fpool, buffer, buffer_len, true);
assert(fd_count == want_tcp);
}
size_t want_udp = 0;
// test udp
for (int i = 0; i < tests[1].num_fds; i++) {
set_fd_pool_t(fpool, tests[1].fds[i], false);
want_udp += 1;
assert(fpool->num_udp_fds == want_udp);
assert(fpool->num_tcp_fds == want_tcp);
bool is_set = is_set_fd_pool_t(fpool, tests[1].fds[i], false);
assert(is_set == true);
int buffer[10];
size_t buffer_len = 10;
memset(buffer, 0, 10);
int fd_count = get_all_fd_pool_t(fpool, buffer, buffer_len, false);
assert(fd_count == want_udp);
}
fd_set tcp_copy, udp_copy;
unsafe_copy_fd_pool_t(fpool, &tcp_copy, true);
unsafe_copy_fd_pool_t(fpool, &udp_copy, false);
assert(FD_ISSET(1, &tcp_copy));
assert(FD_ISSET(5, &tcp_copy));
assert(FD_ISSET(10, &tcp_copy));
assert(FD_ISSET(100, &udp_copy));
assert(FD_ISSET(150, &udp_copy));
assert(FD_ISSET(200, &udp_copy));
free_fd_pool_t(fpool);
}
void test_listen_socket(void **state) {
thread_logger *thl = new_thread_logger(true);
typedef struct args {
char *addr;
char *port;
SOCKET_OPTS sock_opts[10];
int num_sock_opts;
bool tcp;
bool ipv4;
} args_t;
args_t tests[8];
// ipv4 tcp - reuse & noblock
tests[0].addr = "127.0.0.1";
tests[0].port = "5001";
tests[0].sock_opts[0] = REUSEADDR;
tests[0].sock_opts[1] = NOBLOCK;
tests[0].num_sock_opts = 2;
tests[0].tcp = true;
tests[0].ipv4 = true;
// ipv4 tcp - reuse & block
tests[1].addr = "127.0.0.1";
tests[1].port = "5002";
tests[1].sock_opts[0] = REUSEADDR;
tests[1].sock_opts[1] = BLOCK;
tests[1].num_sock_opts = 2;
tests[1].tcp = true;
tests[1].ipv4 = true;
// ipv4 udp - reuse & noblock
tests[2].addr = "127.0.0.1";
tests[2].port = "5001";
tests[2].sock_opts[0] = REUSEADDR;
tests[2].sock_opts[1] = NOBLOCK;
tests[2].num_sock_opts = 2;
tests[2].tcp = false;
tests[2].ipv4 = true;
// ipv4 udp - reuse & block
tests[3].addr = "127.0.0.1";
tests[3].port = "5002";
tests[3].sock_opts[0] = REUSEADDR;
tests[3].sock_opts[1] = BLOCK;
tests[3].num_sock_opts = 2;
tests[3].tcp = false;
tests[3].ipv4 = true;
// ipv6 tcp - reuse & noblock
tests[4].addr = "::1";
tests[4].port = "5001";
tests[4].sock_opts[0] = REUSEADDR;
tests[4].sock_opts[1] = NOBLOCK;
tests[4].num_sock_opts = 2;
tests[4].tcp = true;
tests[4].ipv4 = false;
// ipv6 tcp - reuse & block
tests[5].addr = "::1";
tests[5].port = "5002";
tests[5].sock_opts[0] = REUSEADDR;
tests[5].sock_opts[1] = BLOCK;
tests[5].num_sock_opts = 2;
tests[5].tcp = true;
tests[5].ipv4 = false;
// ipv6 udp - reuse & noblock
tests[6].addr = "::1";
tests[6].port = "5001";
tests[6].sock_opts[0] = REUSEADDR;
tests[6].sock_opts[1] = NOBLOCK;
tests[6].num_sock_opts = 2;
tests[6].tcp = false;
tests[6].ipv4 = false;
// ipv6 udp - reuse & block
tests[7].addr = "::1";
tests[7].port = "5002";
tests[7].sock_opts[0] = REUSEADDR;
tests[7].sock_opts[1] = BLOCK;
tests[7].num_sock_opts = 2;
tests[7].tcp = false;
tests[7].ipv4 = false;
int sockets[8];
memset(sockets, 0, 8);
fd_pool_t *fpool = new_fd_pool_t();
assert(fpool != NULL);
for (int i = 0; i < 8; i++) {
// todo: enable ipv4/ipv6 selection
int sock_num = listen_socket(thl, tests[i].addr, tests[i].port, tests[i].tcp, tests[i].ipv4, tests[i].sock_opts, tests[i].num_sock_opts);
assert(sock_num > 0);
set_fd_pool_t(fpool, sock_num, tests[i].tcp);
LOGF_DEBUG(thl, 0, "loop %i passed, socket is %i", i, sock_num);
sockets[i] = sock_num;
}
socket_client_t *sock_client = new_client_socket(thl, "127.0.0.1", "5001", true, true);
assert(sock_client != NULL);
pthread_t thread;
pthread_create(&thread, NULL, test_socket_wrapper, sock_client);
LOG_DEBUG(thl, 0, "getting available sockets");
fd_set active_set_tcp, active_set_udp;
// TODO: enable better testing by testing all fds
for (;;) {
int num_active = get_active_fd_pool_t(fpool, &active_set_tcp, true, true); // read (tcp)
if (num_active > 0) {
// active
break;
}
}
// trigger the socket wrapper test to exit
stop = true;
int num_active = get_active_fd_pool_t(fpool, &active_set_tcp, true, true); // read (tcp)
LOGF_DEBUG(thl, 0, "found %i available fds. write %i, tcp %i", num_active, false, true);
num_active = get_active_fd_pool_t(fpool, &active_set_tcp, true, false); // write (tcp);
LOGF_DEBUG(thl, 0, "found %i available fds. write %i, tcp %i", num_active, true, true);
num_active = get_active_fd_pool_t(fpool, &active_set_udp, false, true); // read (udp)
LOGF_DEBUG(thl, 0, "found %i available fds. write %i, tcp %i", num_active, false, false);
num_active = get_active_fd_pool_t(fpool, &active_set_udp, false, false); // write (udp);
LOGF_DEBUG(thl, 0, "found %i available fds. write %i, tcp %i", num_active, true, false);
// wait for client routine to exit before beginning cleanup
while (stopped == false) {
sleep(1);
}
LOG_DEBUG(thl, 0, "closing opened sockets (if any)");
for (int i = 0; i < 8; i++) {
close(sockets[i]);
}
clear_thread_logger(thl);
free_fd_pool_t(fpool);
pthread_join(thread, NULL);
}
void test_listen_accept(void **state) {
// reset variables
stop = false;
stopped = false;
fd_pool_t *fpool = new_fd_pool_t();
assert(fpool != NULL);
thread_logger *thl = new_thread_logger(true);
assert(thl != NULL);
int fd = listen_socket(thl, "127.0.0.1", "5001", true, true, default_sock_opts, default_socket_opts_count);
assert(fd > 0);
set_fd_pool_t(fpool, fd, true);
socket_client_t *sock_client = new_client_socket(thl, "127.0.0.1", "5001", true, true);
assert(sock_client != NULL);
pthread_t thread;
pthread_create(&thread, NULL, test_socket_wrapper, sock_client);
for (;;) {
fd_set active_set;
int num_active = get_active_fd_pool_t(fpool, &active_set, true, true);
switch (num_active) {
case -1:
LOG_ERROR(thl, 0, "failed to get active fds");
case 0:
sleep(1);
continue;
default:
LOG_DEBUG(thl, 0, "found active fd");
break;
}
assert(FD_ISSET(fd, &active_set));
int conn_fd = accept_socket(thl, fd);
assert(conn_fd > 0);
char buffer[1024];
memset(buffer, 0, 1024);
int rc = read(conn_fd, buffer, sizeof(buffer));
if (rc == -1) {
LOGF_ERROR(thl, 0, "failed to read data: %s", strerror(errno));
break;
}
assert(rc > 0);
LOGF_DEBUG(thl, 0, "receive message: %s", buffer);
close(conn_fd);
break;
}
stop = true;
while (stopped == false) {
sleep(1);
}
close(fd);
free_fd_pool_t(fpool);
clear_thread_logger(thl);
pthread_join(thread, NULL);
}
int main(void) {
const struct CMUnitTest tests[] = {
cmocka_unit_test(test_fd_pool),
cmocka_unit_test(test_listen_socket),
cmocka_unit_test(test_listen_accept)
};
return cmocka_run_group_tests(tests, NULL, NULL);
}