diff options
Diffstat (limited to 'tools/lib/api/fd/array.h')
| -rw-r--r-- | tools/lib/api/fd/array.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/tools/lib/api/fd/array.h b/tools/lib/api/fd/array.h index de38361ba69e..45db01818f45 100644 --- a/tools/lib/api/fd/array.h +++ b/tools/lib/api/fd/array.h @@ -5,11 +5,24 @@ struct pollfd; +/** + * struct fdarray: Array of file descriptors + * + * @priv: Per array entry priv area, users should access just its contents, + * not set it to anything, as it is kept in synch with @entries, being + * realloc'ed, * for instance, in fdarray__{grow,filter}. + * + * I.e. using 'fda->priv[N].idx = * value' where N < fda->nr is ok, + * but doing 'fda->priv = malloc(M)' is not allowed. + */ struct fdarray { int nr; int nr_alloc; int nr_autogrow; struct pollfd *entries; + union { + int idx; + } *priv; }; void fdarray__init(struct fdarray *fda, int nr_autogrow); @@ -20,7 +33,8 @@ void fdarray__delete(struct fdarray *fda); int fdarray__add(struct fdarray *fda, int fd, short revents); int fdarray__poll(struct fdarray *fda, int timeout); -int fdarray__filter(struct fdarray *fda, short revents); +int fdarray__filter(struct fdarray *fda, short revents, + void (*entry_destructor)(struct fdarray *fda, int fd)); int fdarray__grow(struct fdarray *fda, int extra); int fdarray__fprintf(struct fdarray *fda, FILE *fp); |