Merge branch 'volk_cmake' of github.com:bistromath/gnuradio into new_volk_cmake

Conflicts:
	volk/lib/CMakeLists.txt

1 files changed, 49 insertions, 0 deletions

diff --git a/volk/lib/volk_prefs.c b/volk/lib/volk_prefs.c
new file mode 100644
index 000000000..ebfe3bc40
--- /dev/null
+++ b/volk/lib/volk_prefs.c
@@ -0,0 +1,49 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <volk/volk_prefs.h>
+
+//#if defined(_WIN32)
+//#include <Windows.h>
+//#endif
+
+void get_config_path(char *path) {
+    const char *suffix = "/.volk/volk_config";
+    strcpy(path, getenv("HOME"));
+    strcat(path, suffix);
+}
+
+//passing by reference in C can suck my balls
+int load_preferences(struct volk_arch_pref **prefs) {
+    FILE *config_file;
+    char path[512], line[512], function[128], arch[32];
+    int n_arch_prefs = 0;
+    struct volk_arch_pref *t_pref;
+    
+    //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)) {
+            n_arch_prefs++;
+        }
+    }
+
+    //now allocate the memory required for volk_arch_prefs
+    (*prefs) = (struct volk_arch_pref *) malloc(n_arch_prefs * sizeof(struct volk_arch_pref));
+    t_pref = (*prefs);
+
+    //reset the file pointer and write the prefs into volk_arch_prefs
+    rewind(config_file);
+    while(fgets(line, 512, config_file) != NULL) {
+        if(sscanf(line, "%s %s", function, arch) == 2 && !strncmp(function, "volk_", 5)) {
+            strncpy(t_pref->name, function, 128);
+            strncpy(t_pref->arch, arch, 32);
+            t_pref++;
+        }
+    }
+    fclose(config_file);
+    return n_arch_prefs;
+}