srd: Constify lots more parameters.

[libsigrokdecode.git] / controller.c

diff --git a/controller.c b/controller.c
index 5ffe7ae21bfc2a8c51a18b8e27425b835c02e724..4db4ee8543c174b4e09a85e5d577978fed599906 100644 (file)
--- a/controller.c
+++ b/controller.c
@@ -65,7 +65,7 @@ extern SRD_PRIV PyTypeObject srd_logic_type;
  *         directory cannot be accessed, return SRD_ERR_DECODERS_DIR.
  *         If not enough memory could be allocated, return SRD_ERR_MALLOC.
  */
-SRD_API int srd_init(char *path)
+SRD_API int srd_init(const char *path)
 {
        int ret;
        char *env_path;
@@ -316,7 +316,7 @@ err_out:
 }
 
 /* Helper GComparefunc for g_slist_find_custom() in srd_inst_probes_set() */
-static gint compare_probe_id(struct srd_probe *a, char *probe_id)
+static gint compare_probe_id(const struct srd_probe *a, const char *probe_id)
 {
        return strcmp(a->id, probe_id);
 }
@@ -477,7 +477,7 @@ SRD_API struct srd_decoder_inst *srd_inst_new(const char *decoder_id,
  * @return SRD_OK upon success, a (negative) error code otherwise.
  */
 SRD_API int srd_inst_stack(struct srd_decoder_inst *di_from,
-                              struct srd_decoder_inst *di_to)
+                          struct srd_decoder_inst *di_to)
 {
        if (!di_from || !di_to) {
                srd_err("Invalid from/to instance pair.");
@@ -505,7 +505,7 @@ SRD_API int srd_inst_stack(struct srd_decoder_inst *di_from,
  *
  * @return Pointer to struct srd_decoder_inst, or NULL if not found.
  */
-SRD_API struct srd_decoder_inst *srd_inst_find_by_id(char *inst_id)
+SRD_API struct srd_decoder_inst *srd_inst_find_by_id(const char *inst_id)
 {
        GSList *l;
        struct srd_decoder_inst *tmp, *di;
@@ -535,10 +535,11 @@ SRD_API struct srd_decoder_inst *srd_inst_find_by_id(char *inst_id)
  *
  * @return Pointer to struct srd_decoder_inst, or NULL if not found.
  */
-SRD_PRIV struct srd_decoder_inst *srd_inst_find_by_obj(GSList *stack,
-                                                     PyObject *obj)
+SRD_PRIV struct srd_decoder_inst *srd_inst_find_by_obj(const GSList *stack,
+                                                      const PyObject *obj)
 {
-       GSList *l;
+// TODO?
+       const GSList *l;
        struct srd_decoder_inst *tmp, *di;
 
        di = NULL;
@@ -604,8 +605,8 @@ SRD_PRIV int srd_inst_start(struct srd_decoder_inst *di, PyObject *args)
  * @return SRD_OK upon success, a (negative) error code otherwise.
  */
 SRD_PRIV int srd_inst_decode(uint64_t start_samplenum,
-                               struct srd_decoder_inst *di,
-                               uint8_t *inbuf, uint64_t inbuflen)
+                            const struct srd_decoder_inst *di,
+                            const uint8_t *inbuf, uint64_t inbuflen)
 {
        PyObject *py_res;
        srd_logic *logic;
@@ -634,10 +635,10 @@ SRD_PRIV int srd_inst_decode(uint64_t start_samplenum,
         */
        logic = PyObject_New(srd_logic, &srd_logic_type);
        Py_INCREF(logic);
-       logic->di = di;
+       logic->di = (struct srd_decoder_inst *)di;
        logic->start_samplenum = start_samplenum;
        logic->itercnt = 0;
-       logic->inbuf = inbuf;
+       logic->inbuf = (uint8_t *)inbuf;
        logic->inbuflen = inbuflen;
        logic->sample = PyList_New(2);
        Py_INCREF(logic->sample);
@@ -747,7 +748,7 @@ SRD_API int srd_session_start(int num_probes, int unitsize, uint64_t samplerate)
  *
  * @return SRD_OK upon success, a (negative) error code otherwise.
  */
-SRD_API int srd_session_feed(uint64_t start_samplenum, uint8_t *inbuf,
+SRD_API int srd_session_feed(uint64_t start_samplenum, const uint8_t *inbuf,
                             uint64_t inbuflen)
 {
        GSList *d;
@@ -818,7 +819,7 @@ SRD_PRIV void *srd_find_callback(int output_type)
 
 /* This is the backend function to Python sigrokdecode.add() call. */
 SRD_PRIV int pd_add(struct srd_decoder_inst *di, int output_type,
-                   char *proto_id)
+                   const char *proto_id)
 {
        struct srd_pd_output *pdo;