1 files changed, 392 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/os2/sems-os2.cpp b/src/VBox/Runtime/r3/os2/sems-os2.cpp
new file mode 100644
index 00000000..d4b8136e
--- /dev/null
+++ b/src/VBox/Runtime/r3/os2/sems-os2.cpp
@@ -0,0 +1,392 @@
+/* $Id: sems-os2.cpp $ */
+/** @file
+ * IPRT - Semaphores, OS/2.
+ */
+
+/*
+ * Copyright (C) 2006-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * 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, in version 3 of the
+ * License.
+ *
+ * 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, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox 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.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#define INCL_DOSSEMAPHORES
+#define INCL_ERRORS
+#include <os2.h>
+#undef RT_MAX
+
+#include <iprt/semaphore.h>
+#include <iprt/assert.h>
+#include <iprt/err.h>
+
+
+/** Converts semaphore to OS/2 handle. */
+#define SEM2HND(Sem) ((LHANDLE)(uintptr_t)Sem)
+
+
+
+RTDECL(int)  RTSemEventCreate(PRTSEMEVENT phEventSem)
+{
+    return RTSemEventCreateEx(phEventSem, 0 /*fFlags*/, NIL_RTLOCKVALCLASS, NULL);
+}
+
+
+RTDECL(int)  RTSemEventCreateEx(PRTSEMEVENT phEventSem, uint32_t fFlags, RTLOCKVALCLASS hClass, const char *pszNameFmt, ...)
+{
+    AssertReturn(!(fFlags & ~(RTSEMEVENT_FLAGS_NO_LOCK_VAL | RTSEMEVENT_FLAGS_BOOTSTRAP_HACK)), VERR_INVALID_PARAMETER);
+    Assert(!(fFlags & RTSEMEVENT_FLAGS_BOOTSTRAP_HACK) || (fFlags & RTSEMEVENT_FLAGS_NO_LOCK_VAL));
+
+    /*
+     * Create the semaphore.
+     * (Auto reset, not signaled, private event object.)
+     */
+    HEV hev;
+    int rc = DosCreateEventSem(NULL, &hev, DCE_AUTORESET | DCE_POSTONE, 0);
+    if (!rc)
+    {
+        *phEventSem = (RTSEMEVENT)(void *)hev;
+        return VINF_SUCCESS;
+    }
+    return RTErrConvertFromOS2(rc);
+}
+
+
+RTDECL(int)   RTSemEventDestroy(RTSEMEVENT hEventSem)
+{
+    if (hEventSem == NIL_RTSEMEVENT)
+        return VINF_SUCCESS;
+
+    /*
+     * Close semaphore handle.
+     */
+    int rc = DosCloseEventSem(SEM2HND(hEventSem));
+    if (!rc)
+        return VINF_SUCCESS;
+    AssertMsgFailed(("Destroy hEventSem %p failed, rc=%d\n", hEventSem, rc));
+    return RTErrConvertFromOS2(rc);
+}
+
+
+RTDECL(int)   RTSemEventWaitNoResume(RTSEMEVENT hEventSem, RTMSINTERVAL cMillies)
+{
+    /*
+     * Wait for condition.
+     */
+    int rc = DosWaitEventSem(SEM2HND(hEventSem), cMillies == RT_INDEFINITE_WAIT ? SEM_INDEFINITE_WAIT : cMillies);
+    switch (rc)
+    {
+        case NO_ERROR:              return VINF_SUCCESS;
+        case ERROR_SEM_TIMEOUT:
+        case ERROR_TIMEOUT:         return VERR_TIMEOUT;
+        case ERROR_INTERRUPT:       return VERR_INTERRUPTED;
+        default:
+        {
+            AssertMsgFailed(("Wait on hEventSem %p failed, rc=%d\n", hEventSem, rc));
+            return RTErrConvertFromOS2(rc);
+        }
+    }
+}
+
+
+RTDECL(int)  RTSemEventSignal(RTSEMEVENT hEventSem)
+{
+    /*
+     * Signal the object.
+     */
+    int rc = DosPostEventSem(SEM2HND(hEventSem));
+    switch (rc)
+    {
+        case NO_ERROR:
+        case ERROR_ALREADY_POSTED:
+        case ERROR_TOO_MANY_POSTS:
+            return VINF_SUCCESS;
+        default:
+            return RTErrConvertFromOS2(rc);
+    }
+}
+
+
+RTDECL(void) RTSemEventSetSignaller(RTSEMEVENT hEventSem, RTTHREAD hThread)
+{
+/** @todo implement RTSemEventSetSignaller and friends for OS/2 */
+}
+
+
+RTDECL(void) RTSemEventAddSignaller(RTSEMEVENT hEventSem, RTTHREAD hThread)
+{
+
+}
+
+
+RTDECL(void) RTSemEventRemoveSignaller(RTSEMEVENT hEventSem, RTTHREAD hThread)
+{
+
+}
+
+
+
+
+RTDECL(int)  RTSemEventMultiCreate(PRTSEMEVENTMULTI phEventMultiSem)
+{
+    return RTSemEventMultiCreateEx(phEventMultiSem, 0 /*fFlags*/, NIL_RTLOCKVALCLASS, NULL);
+}
+
+
+RTDECL(int)  RTSemEventMultiCreateEx(PRTSEMEVENTMULTI phEventMultiSem, uint32_t fFlags, RTLOCKVALCLASS hClass,
+                                     const char *pszNameFmt, ...)
+{
+    AssertReturn(!(fFlags & ~RTSEMEVENTMULTI_FLAGS_NO_LOCK_VAL), VERR_INVALID_PARAMETER);
+
+    /*
+     * Create the semaphore.
+     * (Manual reset, not signaled, private event object.)
+     */
+    HEV hev;
+    int rc = DosCreateEventSem(NULL, &hev, 0, FALSE);
+    if (!rc)
+    {
+        *phEventMultiSem = (RTSEMEVENTMULTI)(void *)hev;
+        return VINF_SUCCESS;
+    }
+    return RTErrConvertFromOS2(rc);
+}
+
+
+RTDECL(int)  RTSemEventMultiDestroy(RTSEMEVENTMULTI hEventMultiSem)
+{
+    if (hEventMultiSem == NIL_RTSEMEVENTMULTI)
+        return VINF_SUCCESS;
+
+    /*
+     * Close semaphore handle.
+     */
+    int rc = DosCloseEventSem(SEM2HND(hEventMultiSem));
+    if (!rc)
+        return VINF_SUCCESS;
+    AssertMsgFailed(("Destroy hEventMultiSem %p failed, rc=%d\n", hEventMultiSem, rc));
+    return RTErrConvertFromOS2(rc);
+}
+
+
+RTDECL(int)  RTSemEventMultiSignal(RTSEMEVENTMULTI hEventMultiSem)
+{
+    /*
+     * Signal the object.
+     */
+    int rc = DosPostEventSem(SEM2HND(hEventMultiSem));
+    switch (rc)
+    {
+        case NO_ERROR:
+        case ERROR_ALREADY_POSTED:
+        case ERROR_TOO_MANY_POSTS:
+            return VINF_SUCCESS;
+        default:
+            return RTErrConvertFromOS2(rc);
+    }
+}
+
+
+RTDECL(int)  RTSemEventMultiReset(RTSEMEVENTMULTI hEventMultiSem)
+{
+    /*
+     * Reset the object.
+     */
+    ULONG ulIgnore;
+    int rc = DosResetEventSem(SEM2HND(hEventMultiSem), &ulIgnore);
+    switch (rc)
+    {
+        case NO_ERROR:
+        case ERROR_ALREADY_RESET:
+            return VINF_SUCCESS;
+        default:
+            return RTErrConvertFromOS2(rc);
+    }
+}
+
+
+RTDECL(int)  RTSemEventMultiWaitNoResume(RTSEMEVENTMULTI hEventMultiSem, RTMSINTERVAL cMillies)
+{
+    /*
+     * Wait for condition.
+     */
+    int rc = DosWaitEventSem(SEM2HND(hEventMultiSem), cMillies == RT_INDEFINITE_WAIT ? SEM_INDEFINITE_WAIT : cMillies);
+    switch (rc)
+    {
+        case NO_ERROR:              return VINF_SUCCESS;
+        case ERROR_SEM_TIMEOUT:
+        case ERROR_TIMEOUT:         return VERR_TIMEOUT;
+        case ERROR_INTERRUPT:       return VERR_INTERRUPTED;
+        default:
+        {
+            AssertMsgFailed(("Wait on hEventMultiSem %p failed, rc=%d\n", hEventMultiSem, rc));
+            return RTErrConvertFromOS2(rc);
+        }
+    }
+}
+
+
+RTDECL(void) RTSemEventMultiSetSignaller(RTSEMEVENTMULTI hEventMultiSem, RTTHREAD hThread)
+{
+    /** @todo implement RTSemEventMultiSetSignaller on OS/2 */
+}
+
+
+RTDECL(void) RTSemEventMultiAddSignaller(RTSEMEVENTMULTI hEventMultiSem, RTTHREAD hThread)
+{
+}
+
+
+RTDECL(void) RTSemEventMultiRemoveSignaller(RTSEMEVENTMULTI hEventMultiSem, RTTHREAD hThread)
+{
+}
+
+
+
+#undef RTSemMutexCreate
+RTDECL(int)  RTSemMutexCreate(PRTSEMMUTEX phMutexSem)
+{
+    return RTSemMutexCreateEx(phMutexSem, 0 /*fFlags*/, NIL_RTLOCKVALCLASS, RTLOCKVAL_SUB_CLASS_NONE, NULL);
+}
+
+
+RTDECL(int) RTSemMutexCreateEx(PRTSEMMUTEX phMutexSem, uint32_t fFlags,
+                               RTLOCKVALCLASS hClass, uint32_t uSubClass, const char *pszNameFmt, ...)
+{
+    AssertReturn(!(fFlags & ~RTSEMMUTEX_FLAGS_NO_LOCK_VAL), VERR_INVALID_PARAMETER);
+
+    /*
+     * Create the semaphore.
+     */
+    HMTX hmtx;
+    int rc = DosCreateMutexSem(NULL, &hmtx, 0, FALSE);
+    if (!rc)
+    {
+        /** @todo implement lock validation of OS/2 mutex semaphores. */
+        *phMutexSem = (RTSEMMUTEX)(void *)hmtx;
+        return VINF_SUCCESS;
+    }
+
+    return RTErrConvertFromOS2(rc);
+}
+
+
+RTDECL(int)  RTSemMutexDestroy(RTSEMMUTEX hMutexSem)
+{
+    if (hMutexSem == NIL_RTSEMMUTEX)
+        return VINF_SUCCESS;
+
+    /*
+     * Close semaphore handle.
+     */
+    int rc = DosCloseMutexSem(SEM2HND(hMutexSem));
+    if (!rc)
+        return VINF_SUCCESS;
+    AssertMsgFailed(("Destroy hMutexSem %p failed, rc=%d\n", hMutexSem, rc));
+    return RTErrConvertFromOS2(rc);
+}
+
+
+
+RTDECL(uint32_t) RTSemMutexSetSubClass(RTSEMMUTEX hMutexSem, uint32_t uSubClass)
+{
+#if 0 /** @todo def RTSEMMUTEX_STRICT */
+    /*
+     * Validate.
+     */
+    RTSEMMUTEXINTERNAL *pThis = hMutexSem;
+    AssertPtrReturn(pThis, RTLOCKVAL_SUB_CLASS_INVALID);
+    AssertReturn(pThis->u32Magic == RTSEMMUTEX_MAGIC, RTLOCKVAL_SUB_CLASS_INVALID);
+
+    return RTLockValidatorRecExclSetSubClass(&pThis->ValidatorRec, uSubClass);
+#else
+    return RTLOCKVAL_SUB_CLASS_INVALID;
+#endif
+}
+
+
+#undef RTSemMutexRequestNoResume
+RTDECL(int)  RTSemMutexRequestNoResume(RTSEMMUTEX hMutexSem, RTMSINTERVAL cMillies)
+{
+    /*
+     * Lock mutex semaphore.
+     */
+    int rc = DosRequestMutexSem(SEM2HND(hMutexSem), cMillies == RT_INDEFINITE_WAIT ? SEM_INDEFINITE_WAIT : cMillies);
+    switch (rc)
+    {
+        case NO_ERROR:              return VINF_SUCCESS;
+        case ERROR_SEM_TIMEOUT:
+        case ERROR_TIMEOUT:         return VERR_TIMEOUT;
+        case ERROR_INTERRUPT:       return VERR_INTERRUPTED;
+        case ERROR_SEM_OWNER_DIED:  return VERR_SEM_OWNER_DIED;
+        default:
+        {
+            AssertMsgFailed(("Wait on hMutexSem %p failed, rc=%d\n", hMutexSem, rc));
+            return RTErrConvertFromOS2(rc);
+        }
+    }
+}
+
+RTDECL(int) RTSemMutexRequestNoResumeDebug(RTSEMMUTEX hMutexSem, RTMSINTERVAL cMillies, RTHCUINTPTR uId, RT_SRC_POS_DECL)
+{
+//    RTLOCKVALSRCPOS SrcPos = RTLOCKVALSRCPOS_INIT_DEBUG_API();
+//    return rtSemMutexRequestNoResume(hMutexSem, cMillies, &SrcPos);
+    return RTSemMutexRequestNoResume(hMutexSem, cMillies);
+}
+
+
+RTDECL(int)  RTSemMutexRelease(RTSEMMUTEX hMutexSem)
+{
+    /*
+     * Unlock mutex semaphore.
+     */
+    int rc = DosReleaseMutexSem(SEM2HND(hMutexSem));
+    if (!rc)
+        return VINF_SUCCESS;
+    AssertMsgFailed(("Release hMutexSem %p failed, rc=%d\n", hMutexSem, rc));
+    return RTErrConvertFromOS2(rc);
+}
+
+
+RTDECL(bool) RTSemMutexIsOwned(RTSEMMUTEX hMutexSem)
+{
+    /*
+     * Unlock mutex semaphore.
+     */
+    PID     pid;
+    TID     tid;
+    ULONG   cRecursions;
+    int rc = DosQueryMutexSem(SEM2HND(hMutexSem), &pid, &tid, &cRecursions);
+    if (!rc)
+        return cRecursions != 0;
+    AssertMsgFailed(("DosQueryMutexSem %p failed, rc=%d\n", hMutexSem, rc));
+    return rc == ERROR_SEM_OWNER_DIED;
+}
+