watch_dir.c

watch_dir.c

#include "uv.h"
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
static uv_fs_event_t fs_event;
static uv_timer_t timer;

#define ASSERT(expr)                                      \
 do {                                                     \
  if (!(expr)) {                                          \
    fprintf(stderr,                                       \
            "Assertion failed in %s on line %d: %s\n",    \
            __FILE__,                                     \
            __LINE__,                                     \
            #expr);                                       \
    abort();                                              \
  }                                                       \
} while (0)

static void cb(uv_fs_event_t* handle, const char* fn, int events, int status) {
  printf("cb filename: %s\n", fn);
  ASSERT(events == UV_CHANGE || UV_RENAME);
  ASSERT(handle = &fs_event);
}

static void timer_cb(uv_timer_t* handle) {
  printf("timer cb...\n");
}

void watchdir() {
  printf("watching...\n");
  uv_loop_t* loop = uv_default_loop();
  int r;
  
  r = uv_fs_event_init(loop, &fs_event);
  ASSERT(r == 0);
  r = uv_fs_event_start(&fs_event, cb, "watch_dir", 0);
  ASSERT(r == 0);
  
  r = uv_timer_init(loop, &timer);
  ASSERT(r == 0);
  r = uv_timer_start(&timer, timer_cb, 100, 0);
  ASSERT(r == 0);
  
  uv_run(loop, UV_RUN_DEFAULT);
  
}
int main() {
  watchdir();
  
  return 0;
}