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-rw-r--r--src/VBox/Runtime/r3/posix/tls-posix.cpp109
1 files changed, 109 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/posix/tls-posix.cpp b/src/VBox/Runtime/r3/posix/tls-posix.cpp
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+++ b/src/VBox/Runtime/r3/posix/tls-posix.cpp
@@ -0,0 +1,109 @@
+/* $Id: tls-posix.cpp $ */
+/** @file
+ * IPRT - Thread Local Storage (TLS), POSIX.
+ */
+
+/*
+ * Copyright (C) 2008-2019 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ */
+
+
+/*********************************************************************************************************************************
+* Header Files *
+*********************************************************************************************************************************/
+#define LOG_GROUP RTLOGGROUP_THREAD
+#include <errno.h>
+#include <pthread.h>
+
+#include <iprt/thread.h>
+#include <iprt/log.h>
+#include <iprt/assert.h>
+#include <iprt/errcore.h>
+
+
+AssertCompile(sizeof(pthread_key_t) <= sizeof(RTTLS));
+
+
+RTR3DECL(RTTLS) RTTlsAlloc(void)
+{
+ pthread_key_t iTls = (pthread_key_t)NIL_RTTLS;
+ int rc = pthread_key_create(&iTls, NULL);
+ if (!rc)
+ {
+ Assert(iTls != (pthread_key_t)NIL_RTTLS);
+ return iTls;
+ }
+ return NIL_RTTLS;
+}
+
+
+RTR3DECL(int) RTTlsAllocEx(PRTTLS piTls, PFNRTTLSDTOR pfnDestructor)
+{
+ pthread_key_t iTls = (pthread_key_t)NIL_RTTLS;
+#if defined(__GNUC__) && defined(RT_ARCH_X86)
+ int rc = pthread_key_create(&iTls, (void (*)(void*))pfnDestructor);
+#else
+ int rc = pthread_key_create(&iTls, pfnDestructor);
+#endif
+ if (!rc)
+ {
+ *piTls = iTls;
+ Assert((pthread_key_t)*piTls == iTls);
+ Assert(*piTls != NIL_RTTLS);
+ return VINF_SUCCESS;
+ }
+ return RTErrConvertFromErrno(rc);
+}
+
+
+RTR3DECL(int) RTTlsFree(RTTLS iTls)
+{
+ if (iTls == NIL_RTTLS)
+ return VINF_SUCCESS;
+ int rc = pthread_key_delete(iTls);
+ if (!rc)
+ return VINF_SUCCESS;
+ return RTErrConvertFromErrno(rc);
+}
+
+
+RTR3DECL(void *) RTTlsGet(RTTLS iTls)
+{
+ return pthread_getspecific(iTls);
+}
+
+
+RTR3DECL(int) RTTlsGetEx(RTTLS iTls, void **ppvValue)
+{
+ if (RT_UNLIKELY(iTls == NIL_RTTLS))
+ return VERR_INVALID_PARAMETER;
+ *ppvValue = pthread_getspecific(iTls);
+ return VINF_SUCCESS;
+}
+
+
+RTR3DECL(int) RTTlsSet(RTTLS iTls, void *pvValue)
+{
+ int rc = pthread_setspecific(iTls, pvValue);
+ if (RT_UNLIKELY(rc != 0))
+ return RTErrConvertFromErrno(rc);
+ return VINF_SUCCESS;
+}
+