Update select.c

2018-08-13 22:42:09 +08:00 · 2018-08-13 22:42:09 +08:00 · c90b449dac
commit c90b449dac
parent d948dba42a
1 changed files with 5 additions and 1 deletions
--- 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))
    {