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libipc-old/zig-impl/test-bindings/pong.c

193 lines
3.8 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../libipc.h"
#define SERVICE "pong"
#define SERVICE_LEN 4
#define MAX_MSG_SIZE 10000
int direct_write_then_read(void);
int wait_event(void);
int main(void) {
direct_write_then_read();
wait_event();
}
int direct_write_then_read(void) {
int ret = 0;
int servicefd = 0;
printf ("Init context.\n");
void *ctx = NULL;
ret = ipc_context_init (&ctx);
if (ret != 0) {
printf ("Cannot init context.\n");
return 1;
}
printf ("Connect to a 'pong' service.\n");
ret = ipc_connect_service (ctx, &servicefd, SERVICE, SERVICE_LEN);
if (ret != 0) {
printf ("Cannot connect to a service.\n");
printf ("Deinit context\n");
ipc_context_deinit (&ctx);
return 1;
}
printf ("Let's send a message.\n");
ret = ipc_write (ctx, servicefd, "hello, plz bounce me", 21);
if (ret != 0) {
printf ("Cannot write to the service.\n");
printf ("Deinit context\n");
ipc_context_deinit (&ctx);
return 1;
}
char message[MAX_MSG_SIZE];
size_t size = MAX_MSG_SIZE;
ret = ipc_read_fd (ctx, servicefd, message, &size);
if (ret != 0) {
printf ("Cannot read from the service fd: %d.\n", ret);
printf ("Deinit context\n");
ipc_context_deinit (&ctx);
return 1;
}
if (size == 0) {
printf ("No message returned.\n");
printf ("Deinit context\n");
ipc_context_deinit (&ctx);
return 1;
}
message[size] = '\0';
printf ("Response: %s.\n", message);
printf ("Deinit context\n");
ipc_context_deinit (&ctx);
printf ("Context freed.\n");
return 0;
}
int wait_event(void) {
int ret = 0;
int servicefd = 0;
char message[MAX_MSG_SIZE];
memset (message, 0, 1000);
size_t size = MAX_MSG_SIZE;
char event_type;
size_t index = 0;
int originfd = 0;
void *ctx = NULL;
printf ("Init context.\n");
ret = ipc_context_init (&ctx);
if (ret != 0) {
printf ("Cannot init context.\n");
printf ("Deinit context\n");
ipc_context_deinit (&ctx);
return 1;
}
printf ("Connect to a 'pong' service.\n");
ret = ipc_connect_service (ctx, &servicefd, SERVICE, SERVICE_LEN);
if (ret != 0) {
printf ("Cannot connect to a service.\n");
printf ("Deinit context\n");
ipc_context_deinit (&ctx);
return 1;
}
printf ("Let's schedule a message.\n");
ret = ipc_schedule (ctx, servicefd, "hello, plz bounce me", 21);
if (ret != 0) {
printf ("Cannot schedule a message.\n");
printf ("Deinit context\n");
ipc_context_deinit (&ctx);
return 1;
}
printf ("Let's set the timer to one second.\n");
ipc_context_timer (ctx, 1000);
printf ("Let's loop over events.\n");
char should_continue = 1;
size_t count = 0;
while(should_continue) {
size = MAX_MSG_SIZE;
ret = ipc_wait_event (ctx, &event_type, &index, &originfd, message, &size);
if (ret != 0) {
printf ("Error while waiting for an event.\n");
return 1;
}
printf ("EVENT %lu\t", count++);
switch ((enum event_types) event_type) {
case ERROR: {
printf ("Error.\n");
return 1;
}
case EXTERNAL: {
printf ("External (shouldn't happen).\n");
return 1;
}
case SWITCH_RX: {
printf ("Switch RX (shouldn't happen).\n");
return 1;
}
case SWITCH_TX: {
printf ("Switch TX (shouldn't happen).\n");
return 1;
}
case CONNECTION: {
printf ("Connection (shouldn't happen).\n");
return 1;
}
case DISCONNECTION: {
printf ("Disconnection (shouldn't happen).\n");
return 1;
}
case TIMER: {
printf ("TIMER.\n");
break;
}
case MESSAGE_TX: {
printf ("A message has been sent.\n");
break;
}
case MESSAGE_RX: {
if (size == 0) {
printf ("No message returned.\n");
return 1;
}
message[size] = '\0';
printf ("Response (size %lu): %s.\n", size, message);
// We received the response, quitting.
should_continue = 0;
break;
}
}
}
printf ("Deinit context\n");
ipc_context_deinit (&ctx);
printf ("Context freed.\n");
return 0;
}