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Add const to get*elem*() char* function arguments

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This commit is contained in:
Geoffrey D. Bennett
2024-05-10 22:25:43 +09:30
parent 5526aa2f54
commit 1615580de6
2 changed files with 14 additions and 6 deletions
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10
src/alsa.c
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@@ -45,7 +45,7 @@ void fatal_alsa_error(const char *msg, int err) {
// //
// return the element with the exact matching name // return the element with the exact matching name
struct alsa_elem *get_elem_by_name(GArray *elems, char *name) { struct alsa_elem *get_elem_by_name(GArray *elems, const char *name) {
for (int i = 0; i < elems->len; i++) { for (int i = 0; i < elems->len; i++) {
struct alsa_elem *elem = &g_array_index(elems, struct alsa_elem, i); struct alsa_elem *elem = &g_array_index(elems, struct alsa_elem, i);
@@ -60,7 +60,7 @@ struct alsa_elem *get_elem_by_name(GArray *elems, char *name) {
} }
// return the first element with a name starting with the given prefix // return the first element with a name starting with the given prefix
struct alsa_elem *get_elem_by_prefix(GArray *elems, char *prefix) { struct alsa_elem *get_elem_by_prefix(GArray *elems, const char *prefix) {
int prefix_len = strlen(prefix); int prefix_len = strlen(prefix);
for (int i = 0; i < elems->len; i++) { for (int i = 0; i < elems->len; i++) {
@@ -81,7 +81,11 @@ struct alsa_elem *get_elem_by_prefix(GArray *elems, char *prefix) {
// e.g. get_max_elem_by_name(elems, "Line", "Pad Capture Switch") // e.g. get_max_elem_by_name(elems, "Line", "Pad Capture Switch")
// will return 8 when the last pad capture switch is // will return 8 when the last pad capture switch is
// "Line In 8 Pad Capture Switch" // "Line In 8 Pad Capture Switch"
int get_max_elem_by_name(GArray *elems, char *prefix, char *needle) { int get_max_elem_by_name(
GArray *elems,
const char *prefix,
const char *needle
) {
int max = 0; int max = 0;
int l = strlen(prefix); int l = strlen(prefix);

10
src/alsa.h
View File

@@ -198,9 +198,13 @@ struct alsa_card {
void fatal_alsa_error(const char *msg, int err); void fatal_alsa_error(const char *msg, int err);
// locate elements or get information about them // locate elements or get information about them
struct alsa_elem *get_elem_by_name(GArray *elems, char *name); struct alsa_elem *get_elem_by_name(GArray *elems, const char *name);
struct alsa_elem *get_elem_by_prefix(GArray *elems, char *prefix); struct alsa_elem *get_elem_by_prefix(GArray *elems, const char *prefix);
int get_max_elem_by_name(GArray *elems, char *prefix, char *needle); int get_max_elem_by_name(
GArray *elems,
const char *prefix,
const char *needle
);
int is_elem_routing_snk(struct alsa_elem *elem); int is_elem_routing_snk(struct alsa_elem *elem);
// add callback to alsa_elem callback list // add callback to alsa_elem callback list