test_file_polling_libuv.c

#include <uv.h>
#include <stdlib.h>

// Thanks learnuv.

#define CHECK(r, msg) if (r) {                                                     \
  sprintf("%s: [%s(%d): %s]\n", msg, uv_err_name((r)), (int) r, uv_strerror((r))); \
  exit(1);                                                                         \
}

void we_made_it_to_the_poller(uv_poll_t* hdl, int status, int events)
{
  CHECK(status, "uv_poll_start");
  sprintf("%d", events);
}

int main(void)
{
  int r = 0, fd;
  // Allocate the loop.
  uv_loop_t* loop = uv_default_loop();
  uv_poll_t poll_hdl;

  fd = open("./test_file_polling_libuv.c", O_RDONLY);

  r = uv_poll_init(loop, &poll_hdl, fd);
  CHECK(r, "uv_poll_init");

  uv_poll_start(&poll_hdl, UV_READABLE, we_made_it_to_the_poller);

  uv_run(loop, UV_RUN_DEFAULT);
  return 0;
}