61 lines
1.9 KiB
C#
61 lines
1.9 KiB
C#
using System;
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using System.Runtime.InteropServices;
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using CeresSharp.Native;
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namespace CeresSharp.Native.SafeHandles;
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/// <summary>
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/// Safe handle for Ceres Problem.
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/// Note: Uses official C API (ceres_create_problem/ceres_free_problem).
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/// </summary>
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internal sealed class ProblemHandle : BaseSafeHandle
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{
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private ProblemHandle() : base()
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{
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}
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private ProblemHandle(IntPtr handle, bool ownsHandle) : base(handle, ownsHandle)
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{
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}
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public static ProblemHandle Create()
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{
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// Note: ceres_create_problem is from official C API, not wrapper
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// We'll need to import it separately or use wrapper function if available
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var handle = CeresNative.ceres_create_problem();
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if (handle == IntPtr.Zero)
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{
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throw new Exceptions.CeresException(Exceptions.CeresErrorCode.OutOfMemory, "Failed to create problem");
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}
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return new ProblemHandle(handle, true);
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}
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public static ProblemHandle CreateWithOptions(IntPtr problemOptions)
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{
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var handle = CeresNative.ceres_wrapper_create_problem_with_options(problemOptions);
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if (handle == IntPtr.Zero)
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{
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throw new Exceptions.CeresException(Exceptions.CeresErrorCode.OutOfMemory, "Failed to create problem with options");
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}
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return new ProblemHandle(handle, true);
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}
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protected override void ReleaseNativeHandle(IntPtr handle)
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{
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// Note: ceres_free_problem is from official C API
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// Add null check to prevent crash if handle is invalid
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if (handle != IntPtr.Zero)
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{
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try
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{
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CeresNative.ceres_free_problem(handle);
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}
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catch
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{
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// Ignore errors - handle may already be freed or invalid
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// This can happen in finalizer thread
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}
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}
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}
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}
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