Hack together open()

sw/kernel/process/process.h

@@ -0,0 +1,46 @@
+#ifndef _PROCESS_H
+#define _PROCESS_H
+
+#include <stdint.h>
+
+#include <filesystems/fat32.h>
+
+#define FILE_DESC_SIZE      8
+
+
+#define IN_USE              1
+
+
+struct fops {
+    int8_t (*open)(const int8_t* filename);
+    int8_t (*close)(int8_t fd);
+    int8_t (*read)(int8_t fd, void* buf, int8_t nbytes);
+    int8_t (*write)(int8_t fd, const void* buf, int8_t nbytes);
+};
+
+struct file_desc {
+    struct fops* file_ops;
+    uint8_t fs_type;
+    union {
+        struct fat32_directory_entry f32_dentry;
+    };
+    uint32_t file_pos;
+    uint32_t flags;
+};
+
+/* Process Control Block struct */
+struct pcb {
+    struct file_desc file_desc_array[FILE_DESC_SIZE];
+    int32_t is_vidmapped;
+    uint8_t args[128];
+    uint32_t execute_return;
+    int32_t pid;
+    int32_t parent_pid;
+    uint32_t parent_esp;
+    uint32_t parent_ebp;
+};
+
+
+struct pcb* get_pcb_ptr();
+
+#endif