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Haiku: Process/thread management functions
Add support for process/thread management functions in `System.Diagnostics.Process` for Haiku. This is required to build managed runtime libraries for Haiku as well as running a simple "Hello, World!" application. Co-authored-by: Jessica Hamilton <jessica.l.hamilton@gmail.com>
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‎src/libraries/Common/src/Interop/Haiku/Interop.Image.cs‎

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// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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using System;
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using System.Runtime.InteropServices;
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#pragma warning disable CA1823 // analyzer incorrectly flags fixed buffer length const (https://github.com/dotnet/roslyn/issues/37593)
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internal static partial class Interop
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{
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internal static partial class Image
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{
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internal const int MAXPATHLEN = 1024;
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[LibraryImportAttribute(Interop.Libraries.libroot, SetLastError = false)]
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private static unsafe partial int _get_next_image_info(int team, ref int cookie, out image_info info, nuint size);
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internal enum image_type
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{
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B_APP_IMAGE = 1,
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B_LIBRARY_IMAGE,
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B_ADD_ON_IMAGE,
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B_SYSTEM_IMAGE,
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}
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[StructLayout(LayoutKind.Sequential)]
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internal unsafe struct image_info
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{
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public int id;
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public image_type type;
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public int sequence;
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public int init_order;
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public delegate* unmanaged<void> init_routine;
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public delegate* unmanaged<void> term_routine;
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public int device;
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public long node;
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public fixed byte name[MAXPATHLEN];
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public void* text;
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public void* data;
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public int text_size;
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public int data_size;
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public int api_version;
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public int abi;
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}
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/// <summary>
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/// Gets information about images owned by a team.
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/// </summary>
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/// <param name="team">The team ID to iterate.</param>
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/// <param name="cookie">A cookie to track the iteration.</param>
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/// <param name="info">The <see cref="image_info"/> structure to fill in.</param>
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/// <returns>Returns 0 on success. Returns an error code on failure or when there are no more images to iterate.</returns>
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internal static unsafe int GetNextImageInfo(int team, ref int cookie, out image_info info)
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{
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return _get_next_image_info(team, ref cookie, out info, (nuint)sizeof(image_info));
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}
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}
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}

‎src/libraries/Common/src/Interop/Haiku/Interop.Libraries.cs‎

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// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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internal static partial class Interop
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{
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internal static partial class Libraries
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{
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internal const string libroot = "libroot";
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}
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}

‎src/libraries/Common/src/Interop/Haiku/Interop.OS.cs‎

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// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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using System;
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using System.Diagnostics;
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using System.Runtime.InteropServices;
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#pragma warning disable CA1823 // analyzer incorrectly flags fixed buffer length const (https://github.com/dotnet/roslyn/issues/37593)
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internal static partial class Interop
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{
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internal static partial class OS
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{
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internal const int B_OS_NAME_LENGTH = 32;
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internal const int B_FILE_NAME_LENGTH = 256;
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[LibraryImportAttribute(Interop.Libraries.libroot, SetLastError = false)]
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private static unsafe partial int _get_next_area_info(int team, ref nint cookie, out area_info areaInfo, nuint size);
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[LibraryImportAttribute(Interop.Libraries.libroot, SetLastError = false)]
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private static unsafe partial int _get_team_info(int id, out team_info info, nuint size);
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[LibraryImportAttribute(Interop.Libraries.libroot, SetLastError = false)]
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private static unsafe partial int _get_next_team_info(ref int cookie, void* info, nuint size);
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[LibraryImportAttribute(Interop.Libraries.libroot, SetLastError = false)]
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private static unsafe partial int _get_team_usage_info(int team, BTeamUsage who, out team_usage_info info, nuint size);
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[LibraryImportAttribute(Interop.Libraries.libroot, SetLastError = false)]
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private static unsafe partial int _get_thread_info(int id, out thread_info info, nuint size);
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[LibraryImportAttribute(Interop.Libraries.libroot, SetLastError = false)]
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private static unsafe partial int _get_next_thread_info(int team, ref int cookie, out thread_info info, nuint size);
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[StructLayout(LayoutKind.Sequential)]
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internal unsafe struct area_info
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{
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public int area;
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public fixed byte name[B_OS_NAME_LENGTH];
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public nuint size;
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public uint @lock;
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public uint protection;
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public int team;
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public uint ram_size;
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public uint copy_count;
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public uint in_count;
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public uint out_count;
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public void* address;
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}
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[StructLayout(LayoutKind.Sequential)]
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internal unsafe struct team_info
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{
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public int team;
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public int thread_count;
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public int image_count;
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public int area_count;
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public int debugger_nub_thread;
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public int debugger_nub_port;
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public int argc;
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public fixed byte args[64];
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public uint uid;
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public uint gid;
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public uint real_uid;
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public uint real_gid;
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public int group_id;
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public int session_id;
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public int parent;
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public fixed byte name[B_OS_NAME_LENGTH];
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public long start_time;
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}
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internal enum BTeamUsage
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{
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B_TEAM_USAGE_SELF = 0,
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B_TEAM_USAGE_CHILDREN = -1,
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}
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[StructLayout(LayoutKind.Sequential)]
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internal struct team_usage_info
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{
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public long user_time;
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public long kernel_time;
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}
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internal enum thread_state
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{
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B_THREAD_RUNNING = 1,
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B_THREAD_READY,
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B_THREAD_RECEIVING,
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B_THREAD_ASLEEP,
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B_THREAD_SUSPENDED,
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B_THREAD_WAITING,
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}
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[StructLayout(LayoutKind.Sequential)]
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internal unsafe struct thread_info
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{
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public int thread;
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public int team;
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public fixed byte name[B_OS_NAME_LENGTH];
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public thread_state state;
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public int priority;
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public int sem;
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public long user_time;
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public long kernel_time;
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public void* stack_base;
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public void* stack_end;
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}
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internal enum BPriority
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{
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B_IDLE_PRIORITY = 0,
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B_LOWEST_ACTIVE_PRIORITY = 1,
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B_LOW_PRIORITY = 5,
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B_NORMAL_PRIORITY = 10,
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B_DISPLAY_PRIORITY = 15,
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B_URGENT_DISPLAY_PRIORITY = 20,
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B_REAL_TIME_DISPLAY_PRIORITY = 100,
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B_URGENT_PRIORITY = 110,
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B_REAL_TIME_PRIORITY = 120,
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}
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[StructLayout(LayoutKind.Sequential)]
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internal unsafe struct system_info
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{
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public long boot_time;
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public uint cpu_count;
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public ulong max_pages;
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public ulong used_pages;
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public ulong cached_pages;
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public ulong block_cache_pages;
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public ulong ignored_pages;
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public ulong needed_memory;
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public ulong free_memory;
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public ulong max_swap_pages;
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public ulong free_swap_pages;
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public uint page_faults;
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public uint max_sems;
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public uint used_sems;
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public uint max_ports;
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public uint used_ports;
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public uint max_threads;
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public uint used_threads;
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public uint max_teams;
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public uint used_teams;
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public fixed byte kernel_name[B_FILE_NAME_LENGTH];
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public fixed byte kernel_build_date[B_OS_NAME_LENGTH];
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public fixed byte kernel_build_time[B_OS_NAME_LENGTH];
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public long kernel_version;
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public uint abi;
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}
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/// <summary>
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/// Gets information about areas owned by a team.
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/// </summary>
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/// <param name="team">The team ID of the areas to iterate.</param>
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/// <param name="cookie">A cookie to track the iteration.</param>
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/// <param name="info">The <see cref="area_info"/> structure to fill in.</param>
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/// <returns>Returns 0 on success. Returns an error code on failure or when there are no more areas to iterate.</returns>
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internal static unsafe int GetNextAreaInfo(int team, ref nint cookie, out area_info info)
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{
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return _get_next_area_info(team, ref cookie, out info, (nuint)sizeof(area_info));
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}
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/// <summary>
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/// Gets information about a team.
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/// </summary>
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/// <param name="team">The team ID.</param>
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/// <param name="info">The <see cref="team_info"/> structure to fill in.</param>
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/// <returns>Returns 0 on success or an error code on failure.</returns>
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internal static unsafe int GetTeamInfo(int team, out team_info info)
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{
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return _get_team_info(team, out info, (nuint)sizeof(team_info));
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}
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/// <summary>
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/// Gets information about teams.
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/// </summary>
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/// <param name="cookie">A cookie to track the iteration.</param>
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/// <param name="info">The <see cref="team_info"/> structure to fill in.</param>
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/// <returns>Returns 0 on success. Returns an error code on failure or when there are no more teams to iterate.</returns>
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internal static unsafe int GetNextTeamInfo(ref int cookie, out team_info info)
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{
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fixed (team_info* p = &info)
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{
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return _get_next_team_info(ref cookie, p, (nuint)sizeof(team_info));
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}
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}
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/// <summary>
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/// Gets team IDs.
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/// </summary>
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/// <param name="cookie">A cookie to track the iteration.</param>
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/// <param name="team">The integer to store the retrieved team ID.</param>
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/// <returns>Returns 0 on success. Returns an error code on failure or when there are no more teams to iterate.</returns>
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internal static unsafe int GetNextTeamId(ref int cookie, out int team)
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{
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fixed (int* p = &team)
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{
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return _get_next_team_info(ref cookie, p, (nuint)sizeof(int));
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}
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}
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/// <summary>
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/// Gets information about a team's usage.
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/// </summary>
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/// <param name="team">The team ID.</param>
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/// <param name="who">The thread ID</param>
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/// <param name="info">The <see cref="team_usage_info"/> structure to fill in.</param>
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/// <returns>Returns 0 on success or an error code on failure.</returns>
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internal static unsafe int GetTeamUsageInfo(int team, BTeamUsage who, out team_usage_info info)
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{
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return _get_team_usage_info(team, who, out info, (nuint)sizeof(team_usage_info));
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}
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/// <summary>
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/// Sets the priority of a thread.
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/// </summary>
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/// <param name="thread">The thread ID.</param>
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/// <param name="newPriority">The new priority.</param>
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/// <returns>The previous priority if successful or an error code on failure.</returns>
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[LibraryImportAttribute(Interop.Libraries.libroot, EntryPoint = "set_thread_priority", SetLastError = false)]
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internal static unsafe partial int SetThreadPriority(int thread, int newPriority);
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/// <summary>
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/// Gets information about a thread.
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/// </summary>
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/// <param name="thread">The thread ID.</param>
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/// <param name="info">The <see cref="thread_info"/> structure to fill in.</param>
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/// <returns>Returns 0 on success or an error code on failure.</returns>
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internal static unsafe int GetThreadInfo(int thread, out thread_info info)
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{
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return _get_thread_info(thread, out info, (nuint)sizeof(thread_info));
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}
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/// <summary>
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/// Gets information about threads owned by a team.
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/// </summary>
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/// <param name="team">The team ID of the threads to iterate.</param>
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/// <param name="cookie">A cookie to track the iteration.</param>
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/// <param name="info">The <see cref="thread_info"/> structure to fill in.</param>
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/// <returns>Returns 0 on success. Returns an error code on failure or when there are no more threads to iterate.</returns>
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internal static unsafe int GetNextThreadInfo(int team, ref int cookie, out thread_info info)
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{
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return _get_next_thread_info(team, ref cookie, out info, (nuint)sizeof(thread_info));
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}
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/// <summary>
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/// Gets information about the system.
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/// </summary>
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/// <param name="info">The system_info to store retrieved information.</param>
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/// <returns>0 if successful.</returns>
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[LibraryImportAttribute(Interop.Libraries.libroot, EntryPoint = "get_system_info", SetLastError = false)]
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internal static unsafe partial int GetSystemInfo(out system_info info);
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}
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}

‎src/libraries/System.Diagnostics.Process/src/System.Diagnostics.Process.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFrameworks>$(NetCoreAppCurrent)-windows;$(NetCoreAppCurrent)-freebsd;$(NetCoreAppCurrent)-linux;$(NetCoreAppCurrent)-osx;$(NetCoreAppCurrent)-maccatalyst;$(NetCoreAppCurrent)-ios;$(NetCoreAppCurrent)-tvos;$(NetCoreAppCurrent)</TargetFrameworks>
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<TargetFrameworks>$(NetCoreAppCurrent)-windows;$(NetCoreAppCurrent)-freebsd;$(NetCoreAppCurrent)-haiku;$(NetCoreAppCurrent)-linux;$(NetCoreAppCurrent)-osx;$(NetCoreAppCurrent)-maccatalyst;$(NetCoreAppCurrent)-ios;$(NetCoreAppCurrent)-tvos;$(NetCoreAppCurrent)</TargetFrameworks>
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<DefineConstants>$(DefineConstants);FEATURE_REGISTRY</DefineConstants>
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<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
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<UseCompilerGeneratedDocXmlFile>false</UseCompilerGeneratedDocXmlFile>
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Link="Common\Interop\FreeBSD\Interop.Process.GetProcInfo.cs" />
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</ItemGroup>
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<ItemGroup Condition="'$(TargetPlatformIdentifier)' == 'haiku'">
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<Compile Include="System\Diagnostics\Process.Haiku.cs" />
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<Compile Include="System\Diagnostics\ProcessManager.Haiku.cs" />
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<Compile Include="System\Diagnostics\ProcessThread.Haiku.cs" />
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<Compile Include="$(CommonPath)Interop\Haiku\Interop.Image.cs"
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Link="Common\Interop\Haiku\Interop.Image.cs" />
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<Compile Include="$(CommonPath)Interop\Haiku\Interop.Libraries.cs"
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Link="Common\Interop\Haiku\Interop.Libraries.cs" />
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<Compile Include="$(CommonPath)Interop\Haiku\Interop.OS.cs"
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Link="Common\Interop\Haiku\Interop.OS.cs" />
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</ItemGroup>
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<ItemGroup Condition="'$(TargetPlatformIdentifier)' == 'ios' or '$(TargetPlatformIdentifier)' == 'tvos'">
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<Compile Include="System\Diagnostics\Process.iOS.cs" />
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<Compile Include="System\Diagnostics\ProcessManager.iOS.cs" />

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