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cef0a71bce
They're never actually going to change independently, and it's also brining in kutil headers more places than they should be.
83 lines
1.7 KiB
C
83 lines
1.7 KiB
C
#pragma once
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/// \file process.h
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/// The processes and related definitions
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#include <stdint.h>
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#include "kutil/enum_bitfields.h"
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#include "kutil/linked_list.h"
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#include "page_manager.h"
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enum class process_flags : uint32_t
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{
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running = 0x00000001,
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ready = 0x00000002,
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loading = 0x00000004,
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const_pri = 0x80000000,
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none = 0x00000000
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};
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IS_BITFIELD(process_flags);
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enum class process_wait : uint8_t
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{
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none,
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signal,
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child,
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time
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};
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/// A process
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struct process
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{
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uint32_t pid;
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uint32_t ppid;
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process_flags flags;
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uint16_t quanta;
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uint8_t priority;
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process_wait waiting;
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uint64_t waiting_info;
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uint32_t return_code;
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uint32_t reserved1;
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uintptr_t rsp;
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page_table *pml4;
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/// Unready this process until it gets a signal
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/// \arg sigmask A bitfield of signals to wake on
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void wait_on_signal(uint64_t sigmask);
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/// Unready this process until a child exits
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/// \arg pid PID of the child to wait for, or 0 for any
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void wait_on_child(uint32_t pid);
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/// Unready this process until after the given time
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/// \arg time The time after which to wake
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void wait_on_time(uint64_t time);
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/// If this process is waiting on the given signal, wake it
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/// \argument signal The signal sent to the process
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/// \returns True if this wake was handled
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bool wake_on_signal(int signal);
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/// If this process is waiting on the given child, wake it
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/// \argument child The process that exited
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/// \returns True if this wake was handled
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bool wake_on_child(process *child);
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/// If this process is waiting on a time, check it
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/// \argument now The current time
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/// \returns True if this wake was handled
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bool wake_on_time(uint64_t now);
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};
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using process_list = kutil::linked_list<process>;
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using process_node = process_list::item_type;
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