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| author | heyuanjie87 <[email protected]> | 2018-08-13 22:42:09 +0800 |
|---|---|---|
| committer | GitHub <[email protected]> | 2018-08-13 22:42:09 +0800 |
| commit | c90b449dac29e3e5a46a20988b043d283d3405d6 (patch) | |
| tree | 93a45b7b18a47dd765753dae2d10dc92043bab6d /components/dfs/src/select.c | |
| parent | d948dba42a7b2a219508ac28cf78e6e44f835dcf (diff) | |
Update select.c
Diffstat (limited to 'components/dfs/src/select.c')
| -rw-r--r-- | components/dfs/src/select.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/components/dfs/src/select.c b/components/dfs/src/select.c index 3c83ac109c..339d506c7f 100644 --- a/components/dfs/src/select.c +++ b/components/dfs/src/select.c @@ -32,7 +32,11 @@ static void fdzero(fd_set *set, int nfds) { fd_mask *m; int n; - + + /* + The 'sizeof(fd_set)' of the system space may differ from user space, + so the actual size of the 'fd_set' is determined here with the parameter 'nfds' + */ m = (fd_mask*)set; for (n = 0; n < nfds; n += (sizeof(fd_mask) * 8)) { |