diff options
Diffstat (limited to 'src/vppinfra/random_buffer.h')
| -rw-r--r-- | src/vppinfra/random_buffer.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/vppinfra/random_buffer.h b/src/vppinfra/random_buffer.h index 078e9607caa..83e6bcef479 100644 --- a/src/vppinfra/random_buffer.h +++ b/src/vppinfra/random_buffer.h @@ -54,6 +54,9 @@ typedef struct /* Random buffer. */ uword *buffer; + /* An actual length to be applied before using the buffer. */ + uword next_read_len; + /* Cache up to 1 word worth of bytes for random data less than one word at a time. */ uword n_cached_bytes; @@ -84,6 +87,11 @@ clib_random_buffer_get_data (clib_random_buffer_t * b, uword n_bytes) { uword n_words, i, l; + if (b->buffer) + vec_set_len (b->buffer, b->next_read_len); + else + ASSERT (b->next_read_len == 0); + l = b->n_cached_bytes; if (n_bytes <= l) { @@ -100,7 +108,7 @@ clib_random_buffer_get_data (clib_random_buffer_t * b, uword n_bytes) clib_random_buffer_fill (b, n_words); i = vec_len (b->buffer) - n_words; - vec_set_len (b->buffer, i); + b->next_read_len = i; if (n_bytes < sizeof (uword)) { |