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libipc-old/examples/pongspam.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "../src/ipc.h"
#define MSG "coucou"
#define SERVICE_NAME "pong"
#define PRINTERR(ret,msg) {\
const char * err = ipc_errors_get (ret);\
fprintf(stderr, "error while %s: %s\n", msg, err);\
}
void chomp (char *str, ssize_t len)
{
if (str[len - 1] == '\n') {
str[len - 1] = '\0';
}
if (str[len - 2] == '\n') {
str[len - 2] = '\0';
}
}
struct ipc_connection_info *srv;
void non_interactive (char *env[])
{
SECURE_DECLARATION (struct ipc_message, m);
// init service
TEST_IPC_Q (ipc_connection (env, srv, SERVICE_NAME), EXIT_FAILURE);
TEST_IPC_Q (ipc_message_format_data (&m, 42, MSG, (ssize_t) strlen (MSG) + 1), EXIT_FAILURE);
printf ("msg to send (%ld): %.*s\n", (ssize_t) strlen (MSG) + 1, (int)strlen (MSG), MSG);
TEST_IPC_Q (ipc_write (srv, &m), EXIT_FAILURE);
ipc_message_empty (&m);
TEST_IPC_Q (ipc_read (srv, &m), EXIT_FAILURE);
printf ("msg recv (type: %u): %s\n", m.user_type, m.payload);
ipc_message_empty (&m);
TEST_IPC_Q (ipc_close (srv), EXIT_FAILURE);
}
void interactive (char *env[])
{
// init service
TEST_IPC_Q (ipc_connection (env, srv, SERVICE_NAME), EXIT_FAILURE);
SECURE_DECLARATION (struct ipc_event, event);
2020-06-27 19:16:07 +02:00
SECURE_DECLARATION (struct ipc_ctx, services);
ipc_add (&services, srv);
ipc_add_fd (&services, 0); // add STDIN
ipc_connections_print (&services);
long timer = 10;
while (1) {
printf ("msg to send: ");
fflush (stdout);
TEST_IPC_WAIT_EVENT_Q (ipc_wait_event (&services, NULL, &event, &timer), EXIT_FAILURE);
switch (event.type) {
case IPC_EVENT_TYPE_TIMER:{
printf ("time up!\n");
timer = 10;
};
break;
case IPC_EVENT_TYPE_EXTRA_SOCKET:
{
// structure not read, should read the message here
ssize_t len;
char buf[4096];
memset (buf, 0, 4096);
len = read (event.origin->fd, buf, 4096);
buf[len - 1] = '\0';
chomp (buf, len);
#if 0
printf ("\n");
printf ("message to send: %.*s\n", (int)len, buf);
#endif
// in case we want to quit the program
if (len == 0 || strncmp (buf, "quit", 4) == 0 || strncmp (buf, "exit", 4) == 0) {
TEST_IPC_Q (ipc_close (srv), EXIT_FAILURE);
ipc_connections_free (&services);
exit (EXIT_SUCCESS);
}
// send the message read on STDIN
struct ipc_message *m = NULL;
SECURE_BUFFER_HEAP_ALLOCATION (m, sizeof (struct ipc_message),,);
for (size_t i = 0; i < 5; i++) {
memset (buf, 0, 4096);
snprintf (buf, 4096, "%lu", i);
len = strlen (buf);
printf ("message %lu, buffer %.*s\n", i, (int)len, buf);
TEST_IPC_Q (ipc_message_format_data (m, 42, buf, len), EXIT_FAILURE);
printf ("message from structure: %.*s\n", m->length, m->payload);
#if 0
printf ("\n");
printf ("right before sending a message\n");
#endif
TEST_IPC_Q (ipc_write (srv, m), EXIT_FAILURE);
#if 0
printf ("right after sending a message\n");
#endif
ipc_message_empty (m);
// sleep (1);
}
free (m);
}
break;
case IPC_EVENT_TYPE_MESSAGE:
{
struct ipc_message *m = event.m;
printf ("\rmsg recv: %.*s\n", m->length, m->payload);
};
break;
case IPC_EVENT_TYPE_DISCONNECTION:
case IPC_EVENT_TYPE_NOT_SET:
case IPC_EVENT_TYPE_CONNECTION:
case IPC_EVENT_TYPE_ERROR:
default:
fprintf (stderr, "should not happen, event type %d\n", event.type);
}
}
}
int main (int argc, char *argv[], char *env[])
{
argc = argc; // warnings
argv = argv; // warnings
srv = malloc (sizeof (struct ipc_connection_info));
memset (srv, 0, sizeof (struct ipc_connection_info));
// index and version should be filled
srv->index = 0;
srv->version = 0;
if (argc == 1)
non_interactive (env);
else
interactive (env);
return EXIT_SUCCESS;
}