Add lttng_dynamic_buffer_get_capacity_left util

[lttng-tools.git] / src / common / dynamic-buffer.c

diff --git a/src/common/dynamic-buffer.c b/src/common/dynamic-buffer.c
index 4f1116213a55dce6ec54be42efec2519f35a280e..2e27afa1f92f446c12de25a0f268f6de33623536 100644 (file)
--- a/src/common/dynamic-buffer.c
+++ b/src/common/dynamic-buffer.c
@@ -16,7 +16,6 @@
  */
 
 #include <common/dynamic-buffer.h>
-#include <common/macros.h>
 #include <common/utils.h>
 #include <assert.h>
 
@@ -38,12 +37,14 @@ size_t round_to_power_of_2(size_t val)
        return rounded;
 }
 
+LTTNG_HIDDEN
 void lttng_dynamic_buffer_init(struct lttng_dynamic_buffer *buffer)
 {
        assert(buffer);
        memset(buffer, 0, sizeof(*buffer));
 }
 
+LTTNG_HIDDEN
 int lttng_dynamic_buffer_append(struct lttng_dynamic_buffer *buffer,
                const void *buf, size_t len)
 {
@@ -75,6 +76,7 @@ end:
        return ret;
 }
 
+LTTNG_HIDDEN
 int lttng_dynamic_buffer_append_buffer(struct lttng_dynamic_buffer *dst_buffer,
                struct lttng_dynamic_buffer *src_buffer)
 {
@@ -91,6 +93,7 @@ end:
        return ret;
 }
 
+LTTNG_HIDDEN
 int lttng_dynamic_buffer_set_size(struct lttng_dynamic_buffer *buffer,
                size_t new_size)
 {
@@ -139,6 +142,7 @@ end:
        return ret;
 }
 
+LTTNG_HIDDEN
 int lttng_dynamic_buffer_set_capacity(struct lttng_dynamic_buffer *buffer,
                size_t demanded_capacity)
 {
@@ -172,6 +176,7 @@ end:
 }
 
 /* Release any memory used by the dynamic buffer. */
+LTTNG_HIDDEN
 void lttng_dynamic_buffer_reset(struct lttng_dynamic_buffer *buffer)
 {
        if (!buffer) {
@@ -181,3 +186,13 @@ void lttng_dynamic_buffer_reset(struct lttng_dynamic_buffer *buffer)
        buffer->_capacity = 0;
        free(buffer->data);
 }
+
+LTTNG_HIDDEN
+size_t lttng_dynamic_buffer_get_capacity_left(
+               struct lttng_dynamic_buffer *buffer)
+{
+       if (!buffer) {
+               return 0;
+       }
+       return buffer->_capacity - buffer->size;
+}