1 files changed, 57 insertions, 2 deletions
diff --git a/volk/lib/volk_rank_archs.c b/volk/lib/volk_rank_archs.c
index 25ad75cda..f505abeb6 100644
--- a/volk/lib/volk_rank_archs.c
+++ b/volk/lib/volk_rank_archs.c
@@ -1,5 +1,60 @@
-#include<volk_rank_archs.h>
-#include<stdio.h>
+#include <volk_rank_archs.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#if defined(_WIN32)
+#include <Windows.h>
+#endif
+
+void get_config_path(char *path) {
+    const char *suffix = "/.gnuradio/volk_config";
+    memcpy(path, getenv("HOME"), strlen(getenv("HOME"))+1);
+    strcat(path, suffix);
+}
+
+/*
+ * ok so volk stuff has to be loaded piecemeal, and to avoid reading
+ * the whole config file in at startup we should probably create a static
+ * prefs struct that can be read in by rank_archs with minimal modification.
+ * this makes rank_archs slower and load_preferences more complex, but
+ * we don't have to export load_preferences and we don't have to include volk.h.
+ * means we need to pass the name into rank_archs, though
+ * problem is that names don't appear anywhere in the volk function descriptor.
+ * so we have to modify things to include the name in the descriptor.
+ * 
+ * also means you don't have to also spec the fn name in qa_utils.h/c, you can
+ * pass it in along with the func_desc
+ * 
+ */
+ 
+void load_preferences(void) {
+    static int prefs_loaded = 0;
+    FILE *config_file;
+    char path[512], line[512], function[256], arch[64];
+
+    if(prefs_loaded) return;
+    
+    int n_arch_preferences = 0;
+    
+    //get the config path
+    get_config_path(path);
+    config_file = fopen(path, "r");
+    if(!config_file) return; //no prefs found
+
+    while(fgets(line, 512, config_file) != NULL) {
+        if(sscanf(line, "%s %s", function, arch) == 2 && !strncmp(function, "volk_", 5)) {
+            printf("func: %s, arch: %s\n", function, arch);
+            //we have a function and we have an arch, let's set it
+            n_arch_preferences++;
+        }
+    }
+
+    fclose(config_file);
+    
+    printf("Found %d prefs\n", n_arch_preferences);
+    prefs_loaded = 1;
+}
 
 unsigned int volk_rank_archs(const int* arch_defs, unsigned int n_archs, unsigned int arch) {
   int i = 1;