// ivshmem_root.c
#include "ivshmem_common.h"

int main(int argc, char *argv[]) {
    if (argc < 2)
        error(1, 0, "Usage: %s /dev/uioX", argv[0]);

    ivshmem_ctx ctx;
    ivshmem_init(&ctx, argv[1]);

    printf("Root ID: %u, Peer ID: 1\n", ctx.id);

    ctx.out[ctx.id] = 42;
    printf("Sent 42 to inmate\n");
    mmio_write32(&ctx.regs->doorbell, 1);

    printf("Waiting for inmate...\n");
    ivshmem_wait_irq(&ctx);

    uint32_t response = ctx.in[ctx.id];
    printf("Received from inmate: %u\n", response);

    ivshmem_cleanup(&ctx);
    return 0;
}