message: fix  the 'task_t' same name  on mac
diff: @@ -571,7 +571,7 @@ static void free_cidmap(int cid)
  clear_bit(cid, &cidmap.page);
  }
  //==========================================
  -struct task_t
  +struct task_test
  {
  stCoRoutine_t *co;
  int fd;
  @@ -586,7 +586,7 @@ static void *routine_suba()
  static void *routine_a( void *arg )
  {
  - //task_t *co = (task_t*)arg;
  + //task_test *co = (task_test*)arg;
  printf("routine_a 1\n");
  printf("routine_a 2\n");
  @@ -598,7 +598,7 @@ static void *routine_a( void *arg )
  static void *routine_b( void *arg )
  {
  - //task_t *co = (task_t*)arg;
  + //task_test *co = (task_test*)arg;
  printf("routine_b 1\n");
  printf("routine_b 2\n");
  @@ -609,8 +609,8 @@ static void *routine_b( void *arg )
  int sw_coro_test()
  {
  - task_t * task_a = (task_t*) calloc(1, sizeof(task_t));
  - task_t * task_b = (task_t*) calloc(1, sizeof(task_t));
  + task_test * task_a = (task_test*) calloc(1, sizeof(task_test));
  + task_test * task_b = (task_test*) calloc(1, sizeof(task_test));
  printf("main start\n");
  co_create(&(task_a->co), NULL, routine_a, task_a);
  co_create(&(task_b->co), NULL, routine_b, task_b);
  