diff options
Diffstat (limited to 'gnu/usr.bin/cvs/src/buffer.h')
| -rw-r--r-- | gnu/usr.bin/cvs/src/buffer.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/gnu/usr.bin/cvs/src/buffer.h b/gnu/usr.bin/cvs/src/buffer.h index d3d52bdcc47..b62456cf63c 100644 --- a/gnu/usr.bin/cvs/src/buffer.h +++ b/gnu/usr.bin/cvs/src/buffer.h @@ -26,9 +26,15 @@ struct buffer both. */ /* Read data into the buffer DATA. There is room for up to SIZE - bytes. At least NEED bytes must be read (NEED may be 0). This - should return 0 on success, or -1 on end of file, or an errno - code. It should set the number of bytes read in *GOT. */ + bytes. In blocking mode, wait until some input, at least NEED + bytes, is available (NEED may be 0 but that is the same as NEED + == 1). In non-blocking mode return immediately no matter how + much input is available; NEED is ignored. Return 0 on success, + or -1 on end of file, or an errno code. Set the number of + bytes read in *GOT. + + If there are a nonzero number of bytes available, less than NEED, + followed by end of file, just read those bytes and return 0. */ int (*input) PROTO((void *closure, char *data, int need, int size, int *got)); |