From c6c8051e8e956bb71b3b5458d44c76d7bc7765bd Mon Sep 17 00:00:00 2001
From: AKuHAK <621640+AKuHAK@users.noreply.github.com>
Date: Fri, 18 Oct 2024 11:32:01 +0300
Subject: [PATCH] loader: replace overwrite functions with initialize function.
 Key change: set value only if it is not set.

---
 ee/loader/src/main.c | 61 +++++++++++++++++++++++++-------------------
 1 file changed, 35 insertions(+), 26 deletions(-)

diff --git a/ee/loader/src/main.c b/ee/loader/src/main.c
index 11113ca..6842cfc 100644
--- a/ee/loader/src/main.c
+++ b/ee/loader/src/main.c
@@ -186,7 +186,12 @@ struct SSystemSettings {
         uint8_t disk_id[5];
         uint64_t disk_id_int; // 8 bytes, but that's ok for compare reasons
     };
-} sys;
+} sys = {
+    .bDebugColors = -1,
+    .bLogo = -1,
+    .eecore_mod_base = -1,
+    .fs_sectors = -1,
+};
 
 struct SDriver {
     // All modules
@@ -652,25 +657,29 @@ int fakelist_add_array(struct SFakeList *fl, toml_table_t *tbl_root)
     return 0;
 }
 
-void toml_string_in_overwrite(toml_table_t *t, const char *name, char **dest)
+void toml_string_in_initialize(toml_table_t *t, const char *name, char **dest)
 {
+    if (*dest != NULL)
+        return;
     toml_datum_t v = toml_string_in(t, name);
     if (v.ok) {
-        if (*dest != NULL)
-            free (*dest);
         *dest = v.u.s;
     }
 }
 
-void toml_bool_in_overwrite(toml_table_t *t, const char *name, int *dest)
+void toml_bool_in_initialize(toml_table_t *t, const char *name, int *dest)
 {
+    if (*dest != -1)
+        return;
     toml_datum_t v = toml_bool_in(t, name);
     if (v.ok)
         *dest = v.u.b;
 }
 
-void toml_int_in_overwrite(toml_table_t *t, const char *name, int *dest)
+void toml_int_in_initialize(toml_table_t *t, const char *name, int *dest)
 {
+    if (*dest != -1)
+        return;
     toml_datum_t v = toml_int_in(t, name);
     if (v.ok)
         *dest = v.u.i;
@@ -722,26 +731,26 @@ int load_driver(const char * type, const char * subtype)
         free(v.u.s);
     }
 
-    toml_string_in_overwrite(tbl_root, "default_bsd",    &sys.sBSD);
-    toml_string_in_overwrite(tbl_root, "default_bsdfs",  &sys.sBSDFS);
-    toml_string_in_overwrite(tbl_root, "default_dvd",    &sys.sDVDMode);
-    toml_string_in_overwrite(tbl_root, "default_ata0",   &sys.sATA0File);
-    toml_string_in_overwrite(tbl_root, "default_ata0id", &sys.sATA0IDFile);
-    toml_string_in_overwrite(tbl_root, "default_ata1",   &sys.sATA1File);
-    toml_string_in_overwrite(tbl_root, "default_mc0",    &sys.sMC0File);
-    toml_string_in_overwrite(tbl_root, "default_mc1",    &sys.sMC1File);
-    toml_string_in_overwrite(tbl_root, "default_elf",    &sys.sELFFile);
-    toml_string_in_overwrite(tbl_root, "default_mt",     &sys.sMT);
-    toml_string_in_overwrite(tbl_root, "default_gc",     &sys.sGC);
-    toml_string_in_overwrite(tbl_root, "default_cwd",    &sys.sCWDpath);
-    toml_string_in_overwrite(tbl_root, "default_cfg",    &sys.sCFGFile);
-    toml_bool_in_overwrite  (tbl_root, "default_dbc",    &sys.bDebugColors);
-    toml_bool_in_overwrite  (tbl_root, "default_logo",   &sys.bLogo);
-
-    toml_string_in_overwrite(tbl_root, "eecore_elf",      &sys.eecore_elf);
-    toml_int_in_overwrite   (tbl_root, "eecore_mod_base", &sys.eecore_mod_base);
-
-    toml_int_in_overwrite   (tbl_root, "cdvdman_fs_sectors", &sys.fs_sectors);
+    toml_string_in_initialize(tbl_root, "default_bsd",    &sys.sBSD);
+    toml_string_in_initialize(tbl_root, "default_bsdfs",  &sys.sBSDFS);
+    toml_string_in_initialize(tbl_root, "default_dvd",    &sys.sDVDMode);
+    toml_string_in_initialize(tbl_root, "default_ata0",   &sys.sATA0File);
+    toml_string_in_initialize(tbl_root, "default_ata0id", &sys.sATA0IDFile);
+    toml_string_in_initialize(tbl_root, "default_ata1",   &sys.sATA1File);
+    toml_string_in_initialize(tbl_root, "default_mc0",    &sys.sMC0File);
+    toml_string_in_initialize(tbl_root, "default_mc1",    &sys.sMC1File);
+    toml_string_in_initialize(tbl_root, "default_elf",    &sys.sELFFile);
+    toml_string_in_initialize(tbl_root, "default_mt",     &sys.sMT);
+    toml_string_in_initialize(tbl_root, "default_gc",     &sys.sGC);
+    toml_string_in_initialize(tbl_root, "default_cwd",    &sys.sCWDpath);
+    toml_string_in_initialize(tbl_root, "default_cfg",    &sys.sCFGFile);
+    toml_bool_in_initialize  (tbl_root, "default_dbc",    &sys.bDebugColors);
+    toml_bool_in_initialize  (tbl_root, "default_logo",   &sys.bLogo);
+
+    toml_string_in_initialize(tbl_root, "eecore_elf",      &sys.eecore_elf);
+    toml_int_in_initialize   (tbl_root, "eecore_mod_base", &sys.eecore_mod_base);
+
+    toml_int_in_initialize   (tbl_root, "cdvdman_fs_sectors", &sys.fs_sectors);
 
     arr = toml_array_in(tbl_root, "ilink_id");
     if (arr != NULL) {