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KimisOS
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Started on dynamically sizing ramfs files

This commit is contained in:
notsomeidiot123 2026-07-04 01:11:31 -04:00
parent 3b42ce5386
commit c5c9782535
1 changed files with 18 additions and 3 deletions
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21
src/kernel/system/ramfs.c
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@ -63,14 +63,23 @@ vfile_t *resolve_path(char *pathname, vfile_t *start, uint32_t get_last_child){
path_tokens[pathname_entries++] = pathtok; path_tokens[pathname_entries++] = pathtok;
} }
vfile_t **buffer = (vfile_t **)start->private; // vfile_t **buffer = (vfile_t **)start->private;
vfile_t *entry = start; vfile_t *entry = start;
char *current_path = pathname;
for(int i = 0; i < pathname_entries - !get_last_child; i++){ for(int i = 0; i < pathname_entries - !get_last_child; i++){
printf("%s", path_tokens[i]);
entry = search_dir(path_tokens[i], entry); entry = search_dir(path_tokens[i], entry);
current_path += strlen(path_tokens[i]) + 1;
if(!entry){ if(!entry){
break; break;
} }
if(entry->flags & FS_FILE_MOUNT){
if(!get_last_child){
entry = 0;
break;
}
entry->fileops->rfopen(current_path, entry);
}
} }
kfree(path); kfree(path);
kfree(path_tokens); kfree(path_tokens);
@ -84,6 +93,12 @@ char *get_filename(char *path){
return filename; return filename;
} }
void ramfs_resize(vfile_t *file, uint32_t new_size_bytes){
if(new_size_bytes == file->size) return;
uint32_t new_size_pages = (new_size_bytes + PAGE_SIZE_BYTES - 1)/PAGE_SIZE_BYTES;
printf("New page count: %d from %d\n", new_size_pages, new_size_bytes);
}
vfile_t *ramfs_create(char *path, FS_FILE_FLAGS flags){ vfile_t *ramfs_create(char *path, FS_FILE_FLAGS flags){
if(!path){ if(!path){
return 0; return 0;
@ -93,7 +108,7 @@ vfile_t *ramfs_create(char *path, FS_FILE_FLAGS flags){
mlog(MODULE_NAME, "Could not locate parent directory for %s\n", MLOG_PRINT, path); mlog(MODULE_NAME, "Could not locate parent directory for %s\n", MLOG_PRINT, path);
} }
get_filename(path); get_filename(path);
ramfs_resize(parent, 8191);
return 0; return 0;
} }