eliminated platform layer file exchange

4coder_default_bindings.cpp

@@ -76,7 +76,7 @@ CUSTOM_COMMAND_SIG(move_down_10){
     x = view.preferred_x;
 
     if (view.unwrapped_lines){
-        y = view.cursor.wrapped_y;
+        y = view.cursor.unwrapped_y;
     }
     else{
         y = view.cursor.wrapped_y;

4ed.cpp

@@ -85,6 +85,9 @@ struct App_Vars{
     Complete_State complete_state;
 
     Command_Data command_data;
+    
+    File_Slot slots[32];
+    char filename_space[32 * FileNameMax];
 };
 
 enum Coroutine_Type{
@@ -3213,6 +3216,41 @@ App_Init_Sig(app_init){
     partition = &models->mem.part;
     target->partition = partition;
     
+    {
+        //exchange
+        File_Slot *slots = vars->slots;
+        i32 max = ArrayCount(vars->slots);
+        {
+            char *filename_space;
+            i32 i;
+            
+            exchange->file.max = max;
+            exchange->file.available = file_slot_zero();
+            exchange->file.available.next = &exchange->file.available;
+            exchange->file.available.prev = &exchange->file.available;
+            
+            exchange->file.active = file_slot_zero();
+            exchange->file.active.next = &exchange->file.active;
+            exchange->file.active.prev = &exchange->file.active;
+            
+            exchange->file.free_list = file_slot_zero();
+            exchange->file.free_list.next = &exchange->file.free_list;
+            exchange->file.free_list.prev = &exchange->file.free_list;
+            
+            exchange->file.files = slots;
+            memset(slots, 0, sizeof(File_Slot)*max);
+            
+            filename_space = vars->filename_space;
+            
+            File_Slot *slot = slots;
+            for (i = 0; i < exchange->file.max; ++i, ++slot){
+                ex__file_insert(&exchange->file.available, slot);
+                slot->filename = filename_space;
+                filename_space += FileNameMax;
+            }
+        }
+    }
+    
     {
         i32 i;
         
@@ -4387,6 +4425,73 @@ App_Step_Sig(app_step){
     
     update_command_data(vars, cmd);
     
+    Temp_Memory file_temp = begin_temp_memory(&models->mem.part);
+    
+    // NOTE(allen): Simulate what use to happen on the system side
+    // for processing file exchange.
+    {
+        File_Slot *file;
+        int d = 0;
+        
+        for (file = exchange->file.active.next;
+             file != &exchange->file.active;
+             file = file->next){
+            ++d;
+            
+            if (file->flags & FEx_Save){
+                Assert((file->flags & FEx_Request) == 0);
+                file->flags &= (~FEx_Save);
+                if (system->file_save(file->filename,
+                                      (char*)file->data, file->size)){
+                    file->flags |= FEx_Save_Complete;
+                }
+                else{
+                    file->flags |= FEx_Save_Failed;
+                }
+                app_result.animating = 1;
+            }
+            
+            if (file->flags & FEx_Request){
+                Assert((file->flags & FEx_Save) == 0);
+                file->flags &= (~FEx_Request);
+                
+                File_Loading loading = system->file_load_begin(file->filename);
+                
+                if (loading.exists){
+                    char *data = push_array(&models->mem.part, char, loading.size);
+                    if (system->file_load_end(loading, data)){
+                        file->flags |= FEx_Ready;
+                        file->data = (byte*)data;
+                        file->size = loading.size;
+                    }
+                }
+                else{
+                    system->file_load_end(loading, 0);
+                    file->flags |= FEx_Not_Exist;
+                }
+                
+                app_result.animating = 1;
+            }
+        }
+        
+        int free_list_count = 0;
+        for (file = exchange->file.free_list.next;
+             file != &exchange->file.free_list;
+             file = file->next){
+            ++free_list_count;
+        }
+        
+        if (exchange->file.free_list.next != &exchange->file.free_list){
+            Assert(free_list_count != 0);
+            ex__insert_range(exchange->file.free_list.next,
+                             exchange->file.free_list.prev,
+                             &exchange->file.available);
+            exchange->file.num_active -= free_list_count;
+        }
+        
+        ex__check(&exchange->file);
+    }
+    
     // NOTE(allen): processing sys app bindings
     {
         Mem_Options *mem = &models->mem;
@@ -4478,6 +4583,8 @@ App_Step_Sig(app_step){
         }
     }
     
+    end_temp_memory(file_temp);
+    
     // NOTE(allen): process as many delayed actions as possible
     if (models->delay1.count > 0){
         Working_Set *working_set = &models->working_set;

4ed_exchange.cpp

@@ -17,6 +17,17 @@ ex__file_insert(File_Slot *pos, File_Slot *file){
     file->prev = pos;
 }
 
+void
+ex__insert_range(File_Slot *start, File_Slot *end, File_Slot *pos){
+    end->next->prev = start->prev;
+    start->prev->next = end->next;
+    
+    end->next = pos->next;
+    start->prev = pos;
+    pos->next->prev = end;
+    pos->next = start;
+}
+
 internal void
 ex__file_remove(File_Slot *file){
     file->next->prev = file->prev;

system_shared.cpp

@@ -66,6 +66,7 @@ sysshared_filter_real_files(char **files, i32 *file_count){
     *file_count = j;
 }
 
+#if 0
 void
 ex__file_insert(File_Slot *pos, File_Slot *file){
     file->next = pos->next;
@@ -140,6 +141,7 @@ sysshared_init_file_exchange(
 
     if (filename_space_out) *filename_space_out = filename_space;
 }
+#endif
 
 internal Partition
 sysshared_scratch_partition(i32 size){

win32_4ed.cpp

@@ -1907,8 +1907,10 @@ int main(int argc, char **argv){
         }
     }
     
+#if 0
     File_Slot file_slots[32];
     sysshared_init_file_exchange(&exchange_vars, file_slots, ArrayCount(file_slots), 0);
+#endif
 
     win32vars.app.init(win32vars.system, &win32vars.target,
         &memory_vars, &exchange_vars,
@@ -2056,6 +2058,7 @@ int main(int argc, char **argv){
             
             win32vars.first = 0;
             
+#if 0
             {
                 File_Slot *file;
                 int d = 0;
@@ -2113,6 +2116,7 @@ int main(int argc, char **argv){
                 
                 ex__check(&exchange_vars.file);
             }
+#endif
             
             i64 timer_end = system_time();
             i64 end_target = (timer_start + frame_useconds);