Add function which allow to remove configuration.
This functions also remove binding from internal
library structures what means that after this
operation all pointers to removed config are invalid.
Signed-off-by: Krzysztof Opasiak <k.opasiak@xxxxxxxxxxx>
---
include/usbg/usbg.h | 10 +++++++++
src/usbg.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 72 insertions(+)
diff --git a/include/usbg/usbg.h b/include/usbg/usbg.h
index 6c14cbc..ef5aba2 100644
--- a/include/usbg/usbg.h
+++ b/include/usbg/usbg.h
@@ -278,6 +278,16 @@ extern usbg_config *usbg_get_config(usbg_gadget *g, const char *name);
extern int usbg_remove_binding(usbg_binding *b);
/**
+ * @brief Remove configuration
+ * @details This function frees also the memory allocated for configuration
+ * @param c Configuration to be removed
+ * @param recursive If different than 0 all bindings and strings will
+ * be recursively removed before removing configuration
+ * @return 0 on success, usbg_error if error occurred
+ */
+extern int usbg_remove_config(usbg_config *c, int recursive);
+
+/**
* @brief Remove configuration strings for given language
* @param c Pointer to configuration
* @param lang Language of strings which should be deleted
diff --git a/src/usbg.c b/src/usbg.c
index 8f18047..55530bb 100644
--- a/src/usbg.c
+++ b/src/usbg.c
@@ -483,6 +483,28 @@ static int usbg_remove_dir(char *path, char *name)
return ret;
}
+static int usbg_remove_all_dirs(char *path)
+{
+ int ret = USBG_SUCCESS;
+ int n, i;
+ struct dirent **dent;
+
+ n = scandir(path, &dent, file_select, alphasort);
+ if (n >= 0) {
+ for (i = 0; i < n; ++i) {
+ if (ret == USBG_SUCCESS)
+ ret = usbg_remove_dir(path, dent[i]->d_name);
+
+ free(dent[i]);
+ }
+ free(dent);
+ } else {
+ ret = usbg_translate_error(errno);
+ }
+
+ return ret;
+}
+
static int usbg_parse_function_net_attrs(usbg_function *f,
usbg_function_attrs *f_attrs)
{
@@ -1009,6 +1031,46 @@ int usbg_remove_binding(usbg_binding *b)
return ret;
}
+int usbg_remove_config(usbg_config *c, int recursive)
+{
+ int ret = USBG_ERROR_INVALID_PARAM;
+ usbg_gadget *g;
+
+ if (!c)
+ return ret;
+
+ g = c->parent;
+
+ if (recursive) {
+ /* Recursive flag was given
+ * so remove all bindings and strings */
+ char spath[USBG_MAX_PATH_LENGTH];
+ usbg_binding *b;
+
+ while (!TAILQ_EMPTY(&c->bindings)) {
+ b = TAILQ_FIRST(&c->bindings);
+ ret = usbg_remove_binding(b);
+ if (ret != USBG_SUCCESS)
+ return ret;
+ }
+
+ sprintf(spath, "%s/%s/%s", c->path, c->name, STRINGS_DIR);
+
+ ret = usbg_remove_all_dirs(spath);
+ if (ret != USBG_SUCCESS)
+ return ret;
+
+ }
+
+ ret = usbg_remove_dir(c->path, c->name);
+ if (ret == USBG_SUCCESS) {
+ TAILQ_REMOVE(&(g->configs), c, cnode);
+ usbg_free_config(c);
+ }
+
+ return ret;
+}
+
int usbg_remove_config_strs(usbg_config *c, int lang)
{
int ret = USBG_SUCCESS;
--
1.7.9.5
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