1 files changed, 50 insertions, 0 deletions
diff --git a/volk/lib/volk_prefs.c b/volk/lib/volk_prefs.c
new file mode 100644
index 000000000..f787b5e2a
--- /dev/null
+++ b/volk/lib/volk_prefs.c
@@ -0,0 +1,50 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <volk/volk_prefs.h>
+
+//#if defined(_WIN32)
+//#include <Windows.h>
+//#endif
+
+void volk_get_config_path(char *path)
+{
+    const char *suffix = "/.volk/volk_config";
+    char *home = NULL;
+    if (home == NULL) home = getenv("HOME");
+    if (home == NULL) home = getenv("APPDATA");
+    if (home == NULL){
+        path = NULL;
+        return;
+    }
+    strcpy(path, home);
+    strcat(path, suffix);
+}
+
+size_t volk_load_preferences(volk_arch_pref_t **prefs_res)
+{
+    FILE *config_file;
+    char path[512], line[512];
+    size_t n_arch_prefs = 0;
+    volk_arch_pref_t *prefs = NULL;
+
+    //get the config path
+    volk_get_config_path(path);
+    if (path == NULL) return n_arch_prefs; //no prefs found
+    config_file = fopen(path, "r");
+    if(!config_file) return n_arch_prefs; //no prefs found
+
+    //reset the file pointer and write the prefs into volk_arch_prefs
+    while(fgets(line, sizeof(line), config_file) != NULL)
+    {
+        prefs = (volk_arch_pref_t *) realloc(prefs, (n_arch_prefs+1) * sizeof(*prefs));
+        volk_arch_pref_t *p = prefs + n_arch_prefs;
+        if(sscanf(line, "%s %s %s", p->name, p->impl_a, p->impl_u) == 3 && !strncmp(p->name, "volk_", 5))
+        {
+            n_arch_prefs++;
+        }
+    }
+    fclose(config_file);
+    *prefs_res = prefs;
+    return n_arch_prefs;
+}