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