common: constify some declarations

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Jonathon Jongsma <jjongsma@redhat.com>

3 files changed, 7 insertions, 4 deletions

diff --git a/common/log.c b/common/log.c
index 607aa82..a9bbebc 100644
--- a/common/log.c
+++ b/common/log.c
@@ -43,7 +43,7 @@ static int abort_level = -1;
 
 static GLogLevelFlags spice_log_level_to_glib(SpiceLogLevel level)
 {
-    static GLogLevelFlags glib_levels[] = {
+    static const GLogLevelFlags glib_levels[] = {
         [ SPICE_LOG_LEVEL_ERROR ] = G_LOG_LEVEL_ERROR,
         [ SPICE_LOG_LEVEL_CRITICAL ] = G_LOG_LEVEL_CRITICAL,
         [ SPICE_LOG_LEVEL_WARNING ] = G_LOG_LEVEL_WARNING,
diff --git a/common/marshaller.c b/common/marshaller.c
index c967371..c1d208e 100644
--- a/common/marshaller.c
+++ b/common/marshaller.c
@@ -347,9 +347,12 @@ uint8_t *spice_marshaller_add(SpiceMarshaller *m, const uint8_t *data, size_t si
     return ptr;
 }
 
-uint8_t *spice_marshaller_add_ref(SpiceMarshaller *m, uint8_t *data, size_t size)
+uint8_t *spice_marshaller_add_ref(SpiceMarshaller *m, const uint8_t *data, size_t size)
 {
-    return spice_marshaller_add_ref_full(m, data, size, NULL, NULL);
+    /* the cast to no-const here is safe as data is used for writing only if
+     * free_data pointer is not NULL
+     */
+    return spice_marshaller_add_ref_full(m, (uint8_t *) data, size, NULL, NULL);
 }
 
 void spice_marshaller_add_ref_chunks(SpiceMarshaller *m, SpiceChunks *chunks)
diff --git a/common/marshaller.h b/common/marshaller.h
index b698b69..9f9c3ad 100644
--- a/common/marshaller.h
+++ b/common/marshaller.h
@@ -37,7 +37,7 @@ void spice_marshaller_destroy(SpiceMarshaller *m);
 uint8_t *spice_marshaller_reserve_space(SpiceMarshaller *m, size_t size);
 void spice_marshaller_unreserve_space(SpiceMarshaller *m, size_t size);
 uint8_t *spice_marshaller_add(SpiceMarshaller *m, const uint8_t *data, size_t size);
-uint8_t *spice_marshaller_add_ref(SpiceMarshaller *m, uint8_t *data, size_t size);
+uint8_t *spice_marshaller_add_ref(SpiceMarshaller *m, const uint8_t *data, size_t size);
 uint8_t *spice_marshaller_add_ref_full(SpiceMarshaller *m, uint8_t *data, size_t size,
                                        spice_marshaller_item_free_func free_data, void *opaque);
 void     spice_marshaller_add_ref_chunks(SpiceMarshaller *m, SpiceChunks *chunks);