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/* ==== test_sock_1.c =========================================================
* Copyright (c) 1993 by Chris Provenzano, proven@athena.mit.edu
*
* Description : Test pthread_create() and pthread_exit() calls.
*
* 1.00 93/08/03 proven
* -Started coding this file.
*/
#include <pthread.h>
#include <errno.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
struct sockaddr_in a_sout;
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
pthread_attr_t attr;
#define MESSAGE5 "This should be message #5"
#define MESSAGE6 "This should be message #6"
void * sock_connect(void* arg)
{
char buf[1024];
int fd, tmp;
/* Ensure sock_read runs first */
if (pthread_mutex_lock(&mutex)) {
printf("Error: sock_connect:pthread_mutex_lock()\n");
exit(1);
}
a_sout.sin_addr.s_addr = htonl(0x7f000001); /* loopback */
if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
printf("Error: sock_connect:socket()\n");
exit(1);
}
printf("This should be message #2\n");
if (connect(fd, (struct sockaddr *) &a_sout, sizeof(a_sout)) < 0) {
printf("Error: sock_connect:connect()\n");
exit(1);
}
close(fd);
if (pthread_mutex_unlock(&mutex)) {
printf("Error: sock_connect:pthread_mutex_lock()\n");
exit(1);
}
if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
printf("Error: sock_connect:socket()\n");
exit(1);
}
printf("This should be message #3\n");
if (connect(fd, (struct sockaddr *) &a_sout, sizeof(a_sout)) < 0) {
printf("Error: sock_connect:connect()\n");
exit(1);
}
/* Ensure sock_read runs again */
pthread_yield();
pthread_yield();
pthread_yield();
pthread_yield();
if (pthread_mutex_lock(&mutex)) {
printf("Error: sock_connect:pthread_mutex_lock()\n");
exit(1);
}
if ((tmp = read(fd, buf, 1024)) <= 0) {
printf("Error: sock_connect:read() == %d\n", tmp);
exit(1);
}
write(fd, MESSAGE6, sizeof(MESSAGE6));
printf("%s\n", buf);
close(fd);
}
extern struct fd_table_entry ** fd_table;
void * sock_write(void* arg)
{
int fd = *(int *)arg;
write(fd, MESSAGE5, sizeof(MESSAGE5));
return(NULL);
}
void * sock_accept(void* arg)
{
pthread_t thread;
struct sockaddr a_sin;
int a_sin_size, a_fd, fd, tmp;
short port;
char buf[1024];
if (pthread_mutex_unlock(&mutex)) {
printf("Error: sock_accept:pthread_mutex_lock()\n");
exit(1);
}
port = 3276;
a_sout.sin_family = AF_INET;
a_sout.sin_port = htons(port);
a_sout.sin_addr.s_addr = INADDR_ANY;
if ((a_fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
printf("Error: sock_accept:socket()\n");
exit(1);
}
while (bind(a_fd, (struct sockaddr *) &a_sout, sizeof(a_sout)) < 0) {
if (errno == EADDRINUSE) {
a_sout.sin_port = htons((++port));
continue;
}
printf("Error: sock_accept:bind()\n");
exit(1);
}
if (listen(a_fd, 2)) {
printf("Error: sock_accept:listen()\n");
exit(1);
}
a_sin_size = sizeof(a_sin);
printf("This should be message #1\n");
if ((fd = accept(a_fd, &a_sin, &a_sin_size)) < 0) {
perror("Error: sock_accept:accept()");
exit(1);
}
if (pthread_mutex_lock(&mutex)) {
printf("Error: sock_accept:pthread_mutex_lock()\n");
exit(1);
}
close(fd);
a_sin_size = sizeof(a_sin);
printf("This should be message #4\n");
if ((fd = accept(a_fd, &a_sin, &a_sin_size)) < 0) {
printf("Error: sock_accept:accept()\n");
exit(1);
}
if (pthread_mutex_unlock(&mutex)) {
printf("Error: sock_accept:pthread_mutex_lock()\n");
exit(1);
}
/* Setup a write thread */
if (pthread_create(&thread, &attr, sock_write, &fd)) {
printf("Error: sock_accept:pthread_create(sock_write)\n");
exit(1);
}
if ((tmp = read(fd, buf, 1024)) <= 0) {
printf("Error: sock_accept:read() == %d\n", tmp);
exit(1);
}
printf("%s\n", buf);
close(fd);
}
main()
{
pthread_t thread;
int i;
pthread_init();
setbuf(stdout, NULL);
setbuf(stderr, NULL);
/* Ensure sock_read runs first */
if (pthread_mutex_lock(&mutex)) {
printf("Error: main:pthread_mutex_lock()\n");
exit(1);
}
if (pthread_attr_init(&attr)) {
printf("Error: main:pthread_attr_init()\n");
exit(1);
}
if (pthread_attr_setschedpolicy(&attr, SCHED_FIFO)) {
printf("Error: main:pthread_attr_setschedpolicy()\n");
exit(1);
}
if (pthread_create(&thread, &attr, sock_accept, (void *)0xdeadbeaf)) {
printf("Error: main:pthread_create(sock_accept)\n");
exit(1);
}
if (pthread_create(&thread, &attr, sock_connect, (void *)0xdeadbeaf)) {
printf("Error: main:pthread_create(sock_connect)\n");
exit(1);
}
printf("initial thread %lx going to sleep\n", pthread_self());
sleep(10);
printf("done sleeping\n");
return 0;
}
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