* Dhaval Giani <[email protected]> [2009-05-18 14:17:45]:

> As Jan Safranek pointed out, it is better to have double pointers
> everywhere in the get_task API to keep consistency. Do the same.
> 
> Signed-off-by: Dhaval Giani <[email protected]>
> 
> ---
>  include/libcgroup.h |    2 +-
>  src/api.c           |    6 +++---
>  tests/walk_task.c   |    9 ++++-----
>  3 files changed, 8 insertions(+), 9 deletions(-)
> 
> Index: libcg/src/api.c
> ===================================================================
> --- libcg.orig/src/api.c
> +++ libcg/src/api.c
> @@ -2472,7 +2472,7 @@ int cgroup_get_task_end(void **handle)
>       return 0;
>  }
> 
> -int cgroup_get_task_next(void *handle, pid_t *pid)
> +int cgroup_get_task_next(void **handle, pid_t *pid)
>  {
>       int ret;
> 
> @@ -2482,7 +2482,7 @@ int cgroup_get_task_next(void *handle, p
>       if (!handle)
>               return ECGINVAL;
> 
> -     ret = fscanf((FILE *) handle, "%u", pid);
> +     ret = fscanf((FILE *) *handle, "%u", pid);
> 
>       if (ret != 1) {
>               if (ret == EOF)
> @@ -2521,7 +2521,7 @@ int cgroup_get_task_begin(char *cgroup, 
>               last_errno = errno;
>               return ECGOTHER;
>       }
> -     ret = cgroup_get_task_next(*handle, pid);
> +     ret = cgroup_get_task_next(handle, pid);
> 
>       return ret;
>  }
> Index: libcg/tests/walk_task.c
> ===================================================================
> --- libcg.orig/tests/walk_task.c
> +++ libcg/tests/walk_task.c
> @@ -8,7 +8,7 @@ int main(int argc, char *argv[])
>  {
>       int ret, i;
>       char *group = NULL;
> -     FILE *tasks = NULL;
> +     void *handle;
> 
>       if (argc < 2) {
>               printf("No list of groups provided\n");
> @@ -26,11 +26,10 @@ int main(int argc, char *argv[])
>               pid_t pid;
>               group = strdup(argv[i]);
>               printf("Printing the details of groups %s\n", group);
> -             ret = cgroup_get_task_begin(group, "cpu", (void *) &tasks,
> -                                                                     &pid);
> +             ret = cgroup_get_task_begin(group, "cpu", &handle, &pid);
>               while (!ret) {
>                       printf("Pid is %u\n", pid);
> -                     ret = cgroup_get_task_next((void *) tasks, &pid);
> +                     ret = cgroup_get_task_next(&handle, &pid);
>                       if (ret && ret != ECGEOF) {
>                               printf("cgroup_get_task_next failed with %s\n",
>                                                       cgroup_strerror(ret));
> @@ -42,7 +41,7 @@ int main(int argc, char *argv[])
>               }
>               free(group);
>               group = NULL;
> -             ret = cgroup_get_task_end((void **) &tasks);
> +             ret = cgroup_get_task_end(&handle);
>       }
> 
>       return 0;
> Index: libcg/include/libcgroup.h
> ===================================================================
> --- libcg.orig/include/libcgroup.h
> +++ libcg/include/libcgroup.h
> @@ -301,7 +301,7 @@ int cgroup_get_task_begin(char *cgroup, 
>   *
>   * return ECGEOF when the iterator finishes getting the list of tasks.
>   */
> -int cgroup_get_task_next(void *handle, pid_t *pid);
> +int cgroup_get_task_next(void **handle, pid_t *pid);
>  int cgroup_get_task_end(void **handle);
>  /* The wrappers for filling libcg structures */

Looks good

Acked-by: Balbir Singh <[email protected]>
 

-- 
        Balbir

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