debian-packages/eventcore
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Use Mallocator for Win32 file system watcher buffer.

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Avoids allocating using the GC, which `theAllocator` points to by default.
This commit is contained in:
Sönke Ludwig 2019-04-09 18:15:39 +02:00
parent 1bbe244196
commit 304de7a39a
1 changed files with 5 additions and 3 deletions
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8
source/eventcore/drivers/winapi/watchers.d
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@ -6,7 +6,8 @@ import eventcore.driver;
import eventcore.drivers.winapi.core;
import eventcore.drivers.winapi.driver : WinAPIEventDriver; // FIXME: this is an ugly dependency
import eventcore.internal.win32;
import std.experimental.allocator : dispose, makeArray, theAllocator;
import std.experimental.allocator.mallocator : Mallocator;
import std.experimental.allocator : dispose, makeArray;
final class WinAPIEventDriverWatchers : EventDriverWatchers {
@ -23,6 +24,7 @@ final class WinAPIEventDriverWatchers : EventDriverWatchers {
override WatcherID watchDirectory(string path, bool recursive, FileChangesCallback callback)
{
import std.utf : toUTF16z;
auto handle = () @trusted {
scope (failure) assert(false);
return CreateFileW(path.toUTF16z, FILE_LIST_DIRECTORY,
@ -43,7 +45,7 @@ final class WinAPIEventDriverWatchers : EventDriverWatchers {
slot.callback = callback;
slot.overlapped.driver = m_core;
slot.buffer = () @trusted {
try return theAllocator.makeArray!ubyte(16384);
try return Mallocator.instance.makeArray!ubyte(16384);
catch (Exception e) assert(false, "Failed to allocate directory watcher buffer.");
} ();
if (!triggerRead(handle, *slot)) {
@ -83,7 +85,7 @@ final class WinAPIEventDriverWatchers : EventDriverWatchers {
CloseHandle(handle);
() @trusted {
try theAllocator.dispose(slot.watcher.buffer);
try Mallocator.instance.dispose(slot.watcher.buffer);
catch (Exception e) assert(false, "Freeing directory watcher buffer failed.");
} ();
slot.watcher.buffer = null;