115 lines
2.6 KiB
C
115 lines
2.6 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <libipc.h>
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#define SERVICE "pong"
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#define SERVICE_LEN 4
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#define MAX_MSG_SIZE 10000
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int err(void *ctx, char *msg) {
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printf("error: %s\n", msg);
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printf("Free context\n");
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ipc_context_deinit (&ctx);
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return 1;
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}
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int main(int argc, char**argv) {
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int ret = 0;
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int servicefd = 0;
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char message[MAX_MSG_SIZE];
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size_t size = MAX_MSG_SIZE;
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char event_type;
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size_t index = 0;
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int originfd = 0;
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void *ctx = NULL;
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int max_count = 0;
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if (argc > 1) {
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max_count = atoi(argv[1]);
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printf ("Wait for %d timer events.\n", max_count);
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}
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printf ("Init context.\n");
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ret = ipc_context_init (&ctx);
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if (ret != 0) {
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printf ("Cannot init context.\n");
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return 1;
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}
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printf ("Create a 'pong' service.\n");
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ret = ipc_service_init (ctx, &servicefd, SERVICE, SERVICE_LEN);
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if (ret != 0) {
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return err (ctx, "Cannot create a service.");
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}
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printf ("Set the timer to two seconds.\n");
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ipc_context_timer (ctx, 2000);
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printf ("Loop over events.\n");
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char should_continue = 1;
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size_t count = 0;
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size_t count_timer = 0;
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while(should_continue) {
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size = MAX_MSG_SIZE;
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ret = ipc_wait_event (ctx, &event_type, &index, &originfd, message, &size);
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if (ret != 0) {
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return err (ctx, "Error while waiting for an event.");
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}
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if ((enum event_types) event_type != TIMER) {
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printf ("EVENT %lu\t", count++);
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}
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switch ((enum event_types) event_type) {
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case ERROR: return err(ctx, "Error.");
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case EXTERNAL: return err(ctx, "External (shouldn't happen).");
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case SWITCH_RX: return err(ctx, "Switch RX (shouldn't happen).");
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case SWITCH_TX: return err(ctx, "Switch TX (shouldn't happen).");
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case CONNECTION: { printf ("New connection.\n"); break; }
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case DISCONNECTION: { printf ("User disconnected.\n"); break; }
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case TIMER: {
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printf ("\rTIMER (%lu).", count_timer++);
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fflush(stdout);
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if (max_count && count_timer >= (size_t) max_count) {
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printf ("waited for %lu timer events: quitting\n", count_timer);
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should_continue = 0;
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}
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break;
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}
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case MESSAGE_TX: {
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printf ("Message sent.\n");
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break;
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}
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case MESSAGE_RX: {
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if (size == 0) {
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return err(ctx, "Error: no message returned.");
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}
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else {
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message[size+1] = '\0';
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printf ("Message received (size %lu): %s.\n", size, message);
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printf ("Scheduling this message.\n");
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ret = ipc_schedule (ctx, originfd, message, size);
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if (ret != 0) {
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return err(ctx, "Cannot schedule a message.");
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}
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}
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break;
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}
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}
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}
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printf ("Deinit context\n");
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ipc_context_deinit (&ctx);
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printf ("Context freed.\n");
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return 0;
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}
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