docs/kernel_doc/multitasking_8h_source.html

00001 #ifndef MULTITASKING_H
00002 #define MULTITASKING_H
00003
00004 #include <stdint.h>
00005 #include <pmm.h>
00006 #include <pgng.h>
00007
00008 struct cpu_reg_stat {
00009         uint32_t gs __attribute__((aligned(4))), fs __attribute__((aligned(4))), es __attribute__((aligned(4))), ds __attribute__((aligned(4)));
00010         uint32_t eax, ebx, ecx, edx, esi, edi, ebp;
00011         uint32_t interrupt, error;
00012         uint32_t eip, cs, eflags, esp, ss;
00013 }__attribute((packed));
00014
00015 typedef struct tss{
00016         uint32_t prev_tss;
00017         uint32_t esp0;
00018         uint32_t ss0;
00019         uint32_t esp1;
00020         uint32_t ss1;
00021         uint32_t esp2;
00022         uint32_t ss2;
00023         uint32_t cr3;
00024         uint32_t eip;
00025         uint32_t eflags;
00026         uint32_t eax;
00027         uint32_t ecx;
00028         uint32_t edx;
00029         uint32_t ebx;
00030         uint32_t esp;
00031         uint32_t ebp;
00032         uint32_t esi;
00033         uint32_t edi;
00034         uint32_t es;
00035         uint32_t cs;
00036         uint32_t ss;
00037         uint32_t ds;
00038         uint32_t fs;
00039         uint32_t gs;
00040         uint32_t ldt;
00041         uint32_t trp;
00042         uint32_t iomap;
00043 } new_tss_t;
00044
00045 typedef struct cpu_reg_stat cpu_regs;
00046
00047 typedef struct task {
00048         struct cpu_reg_stat* cpu_state;
00049         struct task* next_task;
00050         struct paging_directory* task_pd;
00051         struct phy_alloc_list* memory_list;
00052         uint32_t kernel_stack;
00053         uint32_t usr_stack;
00054         uint16_t pid;
00055         char name[40];
00056 } new_task_t;
00057
00058 typedef struct phy_alloc_list {
00059         void* addr;
00060         struct phy_alloc_list* next;
00061 } phy_alloc_list_t;
00062
00063
00064 void init_mm(multiboot_info_t*);
00065 void load_grub_module(int,multiboot_info_t*);
00066 void set_tss_stack(uint32_t);
00067 new_task_t* init_task(void*,char*,phy_alloc_list_t*);
00068 uint32_t kill_task(uint32_t);
00069 cpu_regs* schedule(cpu_regs* );
00070 void new_map_addresses(phy_alloc_list_t*,struct paging_directory*,uint32_t);
00071 void delete_map_addresses(phy_alloc_list_t*,struct paging_directory*);
00072
00073 #endif