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authorGalen Sagarin <gps5307@rit.edu>2025-05-06 19:23:26 -0400
committerGalen Sagarin <gps5307@rit.edu>2025-05-06 19:43:55 -0400
commitc1fa3f27ea5f3698ae692534b3d658e4f11bede1 (patch)
tree86f83af449f93ad14cb27a9c25dd0880564755ca
parentedited a bit of documentation for tar.c (diff)
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finished documentation, and deleted ramfs.c and ramfs.h, as both were nowhere near implemented.
-rw-r--r--docs/FS.md4
-rw-r--r--kernel/fs/ramfs.c171
-rw-r--r--kernel/include/comus/ramfs.h40
3 files changed, 0 insertions, 215 deletions
diff --git a/docs/FS.md b/docs/FS.md
index f45cb3b..119e0a0 100644
--- a/docs/FS.md
+++ b/docs/FS.md
@@ -13,7 +13,3 @@ File system handling
Tar file system implementation (uses USTar).
- allows for file operations
- notably, tar does not allow for writing
-
-## ramfs.c
-
-Unused
diff --git a/kernel/fs/ramfs.c b/kernel/fs/ramfs.c
deleted file mode 100644
index 0c92c96..0000000
--- a/kernel/fs/ramfs.c
+++ /dev/null
@@ -1,171 +0,0 @@
-#include <comus/fs.h>
-/*#include <lib.h>
-//#include <comus/tar.h>
-//#include <string.h>
-#include <comus/ramfs.h>
-
-#define NOERROR 0
-#define ERROR 1
-
-int ramfs_check_exists(const char *name) {
- for(int i = 0; i < numberOfFiles; i++) {
- if(memcmp(allTheFiles[i].name, name, strlen(allTheFiles[i].name)) == 0) {
- // found it
- return i;
- }
- }
- // doesn't exist
- return -1;
-}
-int ramfs_create(const char *name) {
- if(ramfs_check_exists(name) != -1) {
- // already exists
- return ERROR;
- }
- struct file *newFile;
- *newFile->name = name;
- newFile->size = 0;
- newFile->data = kalloc(MAX_FILE_SIZE);
- newFile = &allTheFiles[numberOfFiles];
-
-}
-
-int ramfs_delete(const char *name) {
- int i = ramfs_check_exists(name);
- if(i >= 0) {
- kfree(allTheFiles[i].data);
- for(int j = i; j < numberOfFiles; j++) {
- allTheFiles[j] = allTheFiles[j+1];
- numberOfFiles -= 1;
- }
- return NOERROR;
-
- }
- return ERROR;
-}
-
-int ramfs_read(const char *name, char *buffer, size_t len) {
- int i = ramfs_check_exists(name);
- if(i >= 0) {
- memcpy(buffer, allTheFiles[i].data, len);
- return NOERROR;
- }
- return ERROR;
-}
-
-
-int ramfs_write(const char *name, char *buffer) {
- int i = ramfs_check_exists(name);
- if(i >= 0) {
- memcpy(buffer)
- }
-}
-
-// here we return the index of the file as well.
-*int ramfs_find_file(root *r, const char *fullpath, const char *name, file *out, directory *outDirectory) {
- directory *location = r->root;
- if(ramfs_find_directory(r, fullpath, name, location) == NOERROR) {
- for(int i = 0; i < location->file_count; i++) {
- if(strcmp(location->files[i]->name, name) == 0) {
- outDirectory = location;
- out = location->files[i];
- return i;
- }
- }
-
- }
- return -1;
-}
-int ramfs_find_directory(root *r, const char *fullpath, const char *name, directory *out) {
- directory *location = r->root;
- char *path = fullpath;
- char *tempPath = strtok(tempPath, "/");
- while(tempPath != NULL) {
- bool wasItFound = false;
-
- for(int i = 0; i < location->directory_count; i++) {
- if(strcmp(location->directories[i]->name, tempPath) == 0) {
- // yay we found it;
- location = location->directories[i];
- wasItFound = true;
- break;
-
- }
- }
- if(!wasItFound) {
- return ERROR;
- }
- tempPath = strtok(NULL, "/");
-
- }
- out = location;
- return NOERROR;
-
-}
-
-int ramfs_create_file(root *r, const char *fullpath, const char *name) {
- // trace through the path
- // struct ramfs_directory *location = r->root;
- directory *location = r->root;
-
- if(ramfs_find_directory(r, fullpath, name, location) == NOERROR) {
- if(location->file_count >= MAX_FILES) {
- return ERROR;
- }
- file *newFile = malloc(sizeof(file));
- strcpy(newFile->name, name);
- newFile->size = 0;
- newFile->data = malloc(MAX_FILE_SIZE);
- location->files[location->file_count] = newFile;
- location->file_count += 1;
-
- return NOERROR;
-
- }
- return ERROR;
-}
-
-int ramfs_delete_file(root *r, const char *fullpath, const char *name) {
- directory *location;
- if(ramfs_find_directory(r, fullpath, name, location) == NOERROR) {
- file *find_file;
- int file_index = ramfs_find_file(r, fullpath, name, find_file, location) >= 0;
- if(file_index >= 0) {
- free(location->files[file_index]->data);
- free(location->files[file_index]);
- for(int i = file_index + 1; i < location->file_count; i++) {
- location->files[i-1] = location->files[i];
- //memcpy(location->files[i-1], location->files[i], location->files[i]->size);
- //free(location->files[i]);
- }
- location->file_count -= 1;
- return NOERROR;
- }
- return ERROR;
-
- }
- return ERROR;
-}
-
-int ramfs_create_directory() {
-
-}
-
-int ramfs_delete_directory() {
-}
-
-int ramfs_write() {
-
-}
-
-
-root *ramfs_init() {
- root *r = malloc(sizeof(root));
- r->root = malloc(sizeof(directory));
- strcpy(r->root->name, "/");
- r->root->file_count = 0;
- r->root->directory_count = 0;
- return r;
-}
-
-*/
diff --git a/kernel/include/comus/ramfs.h b/kernel/include/comus/ramfs.h
deleted file mode 100644
index d3cd703..0000000
--- a/kernel/include/comus/ramfs.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*#include <comus/fs.h>
-#ifndef RAMFS_H_
-#define RAMFS_H_
-#define MAX_FILES 32
-#define MAX_FILE_SIZE 4096
-
-struct file {
- char name[32];
- size_t size;
- char *data;
-} file;
-
-struct file allTheFiles[MAX_FILES];
-int numberOfFiles = 0;
-
-#endif
-/*
-typedef struct ramfs_file {
- char name[32];
- int size;
- char *data;
-} file;
-
-typedef struct ramfs_directory {
- char name[32];
- file *files[MAX_FILES];
- directory *directories[MAX_FILES];
- int file_count;
- int directory_count;
-} directory;
-
-typedef struct ramfs_root {
- directory *root;
-} root;
-
-//struct file allTheFiles[MAX_FILES];
-int numberOfFiles = 0;
-
-
-#endif*/ \ No newline at end of file