87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
/*
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Copyright (C) 2015-2019 The University of Notre Dame
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This software is distributed under the GNU General Public License.
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See the file LICENSE for details.
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*/
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#ifndef PROCESS_H
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#define PROCESS_H
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#include "kernel/types.h"
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#include "kernel/stats.h"
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#include "list.h"
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#include "pagetable.h"
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#include "kobject.h"
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#include "x86.h"
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#include "fs.h"
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#define PROCESS_STATE_CRADLE 0
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#define PROCESS_STATE_READY 1
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#define PROCESS_STATE_RUNNING 2
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#define PROCESS_STATE_BLOCKED 3
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#define PROCESS_STATE_GRAVE 4
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#define PROCESS_MAX_OBJECTS 32
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#define PROCESS_MAX_PID 1024
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#define PROCESS_EXIT_NORMAL 0
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#define PROCESS_EXIT_KILLED 1
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struct process {
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struct list_node node;
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int state;
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int exitcode;
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int exitreason;
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struct pagetable *pagetable;
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char *kstack;
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char *kstack_top;
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char *kstack_ptr;
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struct kobject *ktable[PROCESS_MAX_OBJECTS];
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struct process_stats stats;
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uint32_t pid;
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uint32_t ppid;
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uint32_t vm_data_size;
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uint32_t vm_stack_size;
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uint32_t waiting_for_child_pid;
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};
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void process_init();
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struct process *process_create();
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void process_delete(struct process *p);
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void process_launch(struct process *p);
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void process_pass_arguments(struct process *p, int argc, char **argv);
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void process_inherit(struct process *parent, struct process *child);
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void process_selective_inherit(struct process *parent, struct process *child, int * fds, int fd_len);
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void process_stack_reset(struct process *p, unsigned size);
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void process_kstack_reset(struct process *p, unsigned entry_point);
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void process_kstack_copy(struct process *parent, struct process *child);
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int process_data_size_set(struct process *p, unsigned size);
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int process_stack_size_set(struct process *p, unsigned size);
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int process_available_fd(struct process *p);
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int process_object_max(struct process *p);
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void process_yield();
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void process_preempt();
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void process_exit(int code);
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void process_dump(struct process *p);
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void process_wait(struct list *q);
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void process_wakeup(struct list *q);
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void process_wakeup_parent(struct list *q);
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void process_wakeup_all(struct list *q);
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void process_reap_all();
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int process_kill(uint32_t pid);
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int process_wait_child(uint32_t pid, struct process_info *info, int timeout);
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int process_reap(uint32_t pid);
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int process_stats(int pid, struct process_stats *stat);
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extern struct process *current;
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#endif
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