/**
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* \file
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* Runtime support for managed Mutex on Win32
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*
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* Author:
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* Ludovic Henry (luhenry@microsoft.com)
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*
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* Licensed under the MIT license. See LICENSE file in the project root for full license information.
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*/
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#include "w32mutex.h"
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#include <windows.h>
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#include <winbase.h>
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#include <mono/metadata/handle.h>
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#include <mono/utils/mono-error-internals.h>
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void
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mono_w32mutex_init (void)
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{
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}
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gpointer
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ves_icall_System_Threading_Mutex_CreateMutex_internal (MonoBoolean owned, MonoStringHandle name, MonoBoolean *created, MonoError *error)
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{
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HANDLE mutex;
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error_init (error);
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*created = TRUE;
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if (MONO_HANDLE_IS_NULL (name)) {
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MONO_ENTER_GC_SAFE;
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mutex = CreateMutex (NULL, owned, NULL);
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MONO_EXIT_GC_SAFE;
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} else {
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uint32_t gchandle;
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gunichar2 *uniname = mono_string_handle_pin_chars (name, &gchandle);
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MONO_ENTER_GC_SAFE;
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mutex = CreateMutex (NULL, owned, uniname);
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if (GetLastError () == ERROR_ALREADY_EXISTS)
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*created = FALSE;
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MONO_EXIT_GC_SAFE;
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mono_gchandle_free (gchandle);
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}
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return mutex;
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}
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MonoBoolean
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ves_icall_System_Threading_Mutex_ReleaseMutex_internal (gpointer handle)
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{
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return ReleaseMutex (handle);
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}
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gpointer
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ves_icall_System_Threading_Mutex_OpenMutex_internal (MonoStringHandle name, gint32 rights, gint32 *err, MonoError *error)
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{
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HANDLE ret;
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error_init (error);
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*err = ERROR_SUCCESS;
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uint32_t gchandle = 0;
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gunichar2 *uniname = NULL;
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if (!MONO_HANDLE_IS_NULL (name))
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uniname = mono_string_handle_pin_chars (name, &gchandle);
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MONO_ENTER_GC_SAFE;
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ret = OpenMutex (rights, FALSE, uniname);
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if (!ret)
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*err = GetLastError ();
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MONO_EXIT_GC_SAFE;
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if (gchandle != 0)
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mono_gchandle_free (gchandle);
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return ret;
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}
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