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Diffstat (limited to 'include/VBox/vmm/pdmnetshaperint.h')
| -rw-r--r-- | include/VBox/vmm/pdmnetshaperint.h | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/include/VBox/vmm/pdmnetshaperint.h b/include/VBox/vmm/pdmnetshaperint.h deleted file mode 100644 index 3bbfcda7..00000000 --- a/include/VBox/vmm/pdmnetshaperint.h +++ /dev/null @@ -1,94 +0,0 @@ -/* $Id: pdmnetshaperint.h $ */ -/** @file - * PDM Network Shaper - Internal data structures and functions common for both - * R0 and R3 parts. - */ - -/* - * Copyright (C) 2011-2012 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. - */ - -/** - * Bandwidth group instance data - */ -typedef struct PDMNSBWGROUP -{ - /** Pointer to the next group in the list. */ - struct PDMNSBWGROUP *pNext; - /** Pointer to the shared UVM structure. */ - struct PDMNETSHAPER *pShaper; - /** Critical section protecting all members below. */ - PDMCRITSECT cs; - /** Pointer to the first filter attached to this group. */ - struct PDMNSFILTER *pFiltersHead; - /** Bandwidth group name. */ - char *pszName; - /** Maximum number of bytes filters are allowed to transfer. */ - volatile uint64_t cbTransferPerSecMax; - /** Number of bytes we are allowed to transfer in one burst. */ - volatile uint32_t cbBucketSize; - /** Number of bytes we were allowed to transfer at the last update. */ - volatile uint32_t cbTokensLast; - /** Timestamp of the last update */ - volatile uint64_t tsUpdatedLast; - /** Reference counter - How many filters are associated with this group. */ - volatile uint32_t cRefs; -} PDMNSBWGROUP; -/** Pointer to a bandwidth group. */ -typedef PDMNSBWGROUP *PPDMNSBWGROUP; - -DECLINLINE(bool) pdmNsAllocateBandwidth(PPDMNSFILTER pFilter, size_t cbTransfer) -{ - AssertPtrReturn(pFilter, true); - if (!VALID_PTR(pFilter->CTX_SUFF(pBwGroup))) - return true; - - PPDMNSBWGROUP pBwGroup = ASMAtomicReadPtrT(&pFilter->CTX_SUFF(pBwGroup), PPDMNSBWGROUP); - int rc = PDMCritSectEnter(&pBwGroup->cs, VERR_SEM_BUSY); AssertRC(rc); - if (RT_UNLIKELY(rc == VERR_SEM_BUSY)) - return true; - bool fAllowed = true; - if (pBwGroup->cbTransferPerSecMax) - { - /* Re-fill the bucket first */ - uint64_t tsNow = RTTimeSystemNanoTS(); - uint32_t uTokensAdded = (tsNow - pBwGroup->tsUpdatedLast)*pBwGroup->cbTransferPerSecMax/(1000*1000*1000); - uint32_t uTokens = RT_MIN(pBwGroup->cbBucketSize, uTokensAdded + pBwGroup->cbTokensLast); - - if (cbTransfer > uTokens) - { - fAllowed = false; - ASMAtomicWriteBool(&pFilter->fChoked, true); - } - else - { - pBwGroup->tsUpdatedLast = tsNow; - pBwGroup->cbTokensLast = uTokens - (uint32_t)cbTransfer; - } - Log2((LOG_FN_FMT "BwGroup=%#p{%s} cbTransfer=%u uTokens=%u uTokensAdded=%u fAllowed=%RTbool\n", - __PRETTY_FUNCTION__, pBwGroup, pBwGroup->pszName, cbTransfer, uTokens, uTokensAdded, fAllowed)); - } - else - Log2((LOG_FN_FMT "BwGroup=%#p{%s} disabled fAllowed=%RTbool\n", - __PRETTY_FUNCTION__, pBwGroup, pBwGroup->pszName, fAllowed)); - - rc = PDMCritSectLeave(&pBwGroup->cs); AssertRC(rc); - return fAllowed; -} |