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checkpoint

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This commit is contained in:
John K. Luebs
2020-04-30 20:40:52 -04:00
parent 9aa367e9f5
commit abba062f4f
28 changed files with 615 additions and 544 deletions
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98
Alpm/CachePackageList.cs
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@@ -1,20 +1,16 @@
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Runtime.ConstrainedExecution;
using System.Runtime.InteropServices;
namespace Foodsoft.Alpm
{
public class CachePackageList : IPackageList<CachePackage>, ICollection<CachePackage>
{
private readonly SafeDatabaseHandle _parentHandle;
private readonly IntPtr _listPtr;
private readonly Database _db;
private readonly IntPtr _listPtr;
private readonly SafeDatabaseHandle _parentHandle;
internal CachePackageList(IntPtr listPtr, SafeDatabaseHandle parentHandle, Database db)
{
@@ -23,45 +19,15 @@ namespace Foodsoft.Alpm
_db = db;
}
[PrePrepareMethod]
public IEnumerator<CachePackage> GetEnumerator()
{
var release = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
_parentHandle.DangerousAddRef(ref release);
if (!release) throw new ObjectDisposedException(_parentHandle.GetType().FullName);
for (var list = _listPtr; list != IntPtr.Zero; list = Detail.ListNext(list))
{
yield return new CachePackage(
new SafeCachePackageHandle(Detail.ListData(list), _parentHandle), _db);
}
}
finally
{
if (release)
_parentHandle.DangerousRelease();
}
}
IEnumerator IEnumerable.GetEnumerator()
{
return GetEnumerator();
}
public bool Contains(CachePackage item)
{
var name = item.Name;
return _parentHandle.UseHandle(_listPtr, (list) =>
return _parentHandle.UseHandle(_listPtr, list =>
{
for (; list != IntPtr.Zero; list = Detail.ListNext(list))
{
if (name == alpm.alpm_pkg_get_name(list))
return true;
}
return false;
});
@@ -69,29 +35,16 @@ namespace Foodsoft.Alpm
public void CopyTo(CachePackage[] array, int arrayIndex)
{
_parentHandle.UseHandle(_listPtr, (list) =>
_parentHandle.UseHandle(_listPtr, list =>
{
for (; list != IntPtr.Zero; list = Detail.ListNext(list))
{
array[arrayIndex++] = new CachePackage(
new SafeCachePackageHandle(Detail.ListData(list), _parentHandle), _db);
}
return 0;
});
}
public CachePackage? FindSatisfier(string depString)
{
return _parentHandle.UseHandle(_listPtr, (list) =>
{
var pkgPtr = alpm.alpm_find_satisfier(list, depString);
return pkgPtr != IntPtr.Zero
? new CachePackage(new SafeCachePackageHandle(pkgPtr, _parentHandle), _db)
: null;
});
}
public void Add(CachePackage item)
{
throw new NotSupportedException();
@@ -107,8 +60,49 @@ namespace Foodsoft.Alpm
throw new NotSupportedException();
}
public int Count => _parentHandle.UseHandle(_listPtr, (list) => (int) alpm.alpm_list_count(list));
public int Count => _listPtr == IntPtr.Zero
? 0
: _parentHandle.UseHandle(_listPtr, list => (int) alpm.alpm_list_count(list));
public bool IsReadOnly => true;
[PrePrepareMethod]
public IEnumerator<CachePackage> GetEnumerator()
{
if (_listPtr == IntPtr.Zero)
yield break;
var release = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
_parentHandle.DangerousAddRef(ref release);
if (!release) throw new ObjectDisposedException(_parentHandle.GetType().FullName);
for (var list = _listPtr; list != IntPtr.Zero; list = Detail.ListNext(list))
yield return new CachePackage(
new SafeCachePackageHandle(Detail.ListData(list), _parentHandle), _db);
}
finally
{
if (release)
_parentHandle.DangerousRelease();
}
}
IEnumerator IEnumerable.GetEnumerator()
{
return GetEnumerator();
}
public CachePackage? FindSatisfier(string depString)
{
return _parentHandle.UseHandle(_listPtr, list =>
{
var pkgPtr = alpm.alpm_find_satisfier(list, depString);
return pkgPtr != IntPtr.Zero
? new CachePackage(new SafeCachePackageHandle(pkgPtr, _parentHandle), _db)
: null;
});
}
}
}