[common/c-host] move agnostic code into common library

2025-10-11 18:08:08 +00:00 · 2020-01-02 22:21:42 +11:00
parent 491ffc3576
commit 0c6ff6822d
26 changed files with 502 additions and 378 deletions
--- a/common/src/platform/windows/thread.c
+++ b/common/src/platform/windows/thread.c
@@ -0,0 +1,93 @@
+/*
+Looking Glass - KVM FrameRelay (KVMFR) Client
+Copyright (C) 2017-2020 Geoffrey McRae <geoff@hostfission.com>
+https://looking-glass.hostfission.com
+
+This program is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#include "common/thread.h"
+#include "common/debug.h"
+#include "common/windebug.h"
+
+#include <windows.h>
+
+struct LGThread
+{
+  const char       * name;
+  LGThreadFunction   function;
+  void             * opaque;
+  HANDLE             handle;
+  DWORD              threadID;
+
+  int                resultCode;
+};
+
+static DWORD WINAPI threadWrapper(LPVOID lpParameter)
+{
+  LGThread * handle = (LGThread *)lpParameter;
+  handle->resultCode = handle->function(handle->opaque);
+  return 0;
+}
+
+bool lgCreateThread(const char * name, LGThreadFunction function, void * opaque, LGThread ** handle)
+{
+  *handle             = (LGThread *)malloc(sizeof(LGThread));
+  (*handle)->name     = name;
+  (*handle)->function = function;
+  (*handle)->opaque   = opaque;
+  (*handle)->handle   = CreateThread(NULL, 0, threadWrapper, *handle, 0, &(*handle)->threadID);
+
+  if (!(*handle)->handle)
+  {
+    free(*handle);
+    *handle = NULL;
+    DEBUG_WINERROR("CreateThread failed", GetLastError());
+    return false;
+  }
+
+  return true;
+}
+
+bool lgJoinThread(LGThread * handle, int * resultCode)
+{
+  while(true)
+  {
+    switch(WaitForSingleObject(handle->handle, INFINITE))
+    {
+      case WAIT_OBJECT_0:
+        if (resultCode)
+          *resultCode = handle->resultCode;
+        CloseHandle(handle->handle);
+        free(handle);
+        return true;
+
+      case WAIT_ABANDONED:
+      case WAIT_TIMEOUT:
+        continue;
+
+      case WAIT_FAILED:
+        DEBUG_WINERROR("Wait for thread failed", GetLastError());
+        CloseHandle(handle->handle);
+        free(handle);
+        return false;
+    }
+
+    break;
+  }
+
+  DEBUG_WINERROR("Unknown failure waiting for thread", GetLastError());
+  return false;
+}
+