abuf: Allow incrementing the size
Provide a convenience function to increment the size of the abuf.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/abuf.h b/include/abuf.h
index 9badda6..be98ec7 100644
--- a/include/abuf.h
+++ b/include/abuf.h
@@ -91,6 +91,15 @@
bool abuf_realloc(struct abuf *abuf, size_t new_size);
/**
+ * abuf_realloc_inc() - Increment abuf size by a given amount
+ *
+ * @abuf: abuf to adjust
+ * @inc: Size incrmement to use (the buffer size will be increased by this much)
+ * Return: true if OK, false if out of memory
+ */
+bool abuf_realloc_inc(struct abuf *abuf, size_t inc);
+
+/**
* abuf_uninit_move() - Return the allocated contents and uninit the abuf
*
* This returns the abuf data to the caller, allocating it if necessary, so that
diff --git a/lib/abuf.c b/lib/abuf.c
index bd27046..ce2cff5 100644
--- a/lib/abuf.c
+++ b/lib/abuf.c
@@ -82,6 +82,11 @@
}
}
+bool abuf_realloc_inc(struct abuf *abuf, size_t inc)
+{
+ return abuf_realloc(abuf, abuf->size + inc);
+}
+
void *abuf_uninit_move(struct abuf *abuf, size_t *sizep)
{
void *ptr;
diff --git a/test/lib/abuf.c b/test/lib/abuf.c
index 42ee4c1..42803b2 100644
--- a/test/lib/abuf.c
+++ b/test/lib/abuf.c
@@ -155,6 +155,31 @@
}
LIB_TEST(lib_test_abuf_realloc_size, 0);
+/* Test abuf_realloc_inc() */
+static int lib_test_abuf_realloc_inc(struct unit_test_state *uts)
+{
+ struct abuf buf;
+ ulong start;
+
+ start = ut_check_free();
+
+ abuf_init(&buf);
+ ut_asserteq(0, buf.size);
+ ut_asserteq(false, buf.alloced);
+
+ abuf_realloc_inc(&buf, 20);
+ ut_asserteq(20, buf.size);
+ ut_asserteq(true, buf.alloced);
+
+ abuf_uninit(&buf);
+
+ /* Check for memory leaks */
+ ut_assertok(ut_check_delta(start));
+
+ return 0;
+}
+LIB_TEST(lib_test_abuf_realloc_inc, 0);
+
/* Test handling of buffers that are too large */
static int lib_test_abuf_large(struct unit_test_state *uts)
{