From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- .../components/commandhandler/nsCommandParams.cpp | 264 +++++++++++++++++++++ 1 file changed, 264 insertions(+) create mode 100644 embedding/components/commandhandler/nsCommandParams.cpp (limited to 'embedding/components/commandhandler/nsCommandParams.cpp') diff --git a/embedding/components/commandhandler/nsCommandParams.cpp b/embedding/components/commandhandler/nsCommandParams.cpp new file mode 100644 index 000000000..86647d4dd --- /dev/null +++ b/embedding/components/commandhandler/nsCommandParams.cpp @@ -0,0 +1,264 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "xpcom-config.h" +#include +#include "nscore.h" +#include "nsCRT.h" + +#include "nsCommandParams.h" +#include "mozilla/HashFunctions.h" + +using namespace mozilla; + +const PLDHashTableOps nsCommandParams::sHashOps = +{ + HashKey, + HashMatchEntry, + HashMoveEntry, + HashClearEntry +}; + +NS_IMPL_ISUPPORTS(nsCommandParams, nsICommandParams) + +nsCommandParams::nsCommandParams() + : mValuesHash(&sHashOps, sizeof(HashEntry), 2) +{ +} + +nsCommandParams::~nsCommandParams() +{ +} + +NS_IMETHODIMP +nsCommandParams::GetValueType(const char* aName, int16_t* aRetVal) +{ + NS_ENSURE_ARG_POINTER(aRetVal); + + HashEntry* foundEntry = GetNamedEntry(aName); + if (foundEntry) { + *aRetVal = foundEntry->mEntryType; + return NS_OK; + } + *aRetVal = eNoType; + return NS_ERROR_FAILURE; +} + +NS_IMETHODIMP +nsCommandParams::GetBooleanValue(const char* aName, bool* aRetVal) +{ + NS_ENSURE_ARG_POINTER(aRetVal); + + HashEntry* foundEntry = GetNamedEntry(aName); + if (foundEntry && foundEntry->mEntryType == eBooleanType) { + *aRetVal = foundEntry->mData.mBoolean; + return NS_OK; + } + *aRetVal = false; + return NS_ERROR_FAILURE; +} + +NS_IMETHODIMP +nsCommandParams::GetLongValue(const char* aName, int32_t* aRetVal) +{ + NS_ENSURE_ARG_POINTER(aRetVal); + + HashEntry* foundEntry = GetNamedEntry(aName); + if (foundEntry && foundEntry->mEntryType == eLongType) { + *aRetVal = foundEntry->mData.mLong; + return NS_OK; + } + *aRetVal = false; + return NS_ERROR_FAILURE; +} + +NS_IMETHODIMP +nsCommandParams::GetDoubleValue(const char* aName, double* aRetVal) +{ + NS_ENSURE_ARG_POINTER(aRetVal); + + HashEntry* foundEntry = GetNamedEntry(aName); + if (foundEntry && foundEntry->mEntryType == eDoubleType) { + *aRetVal = foundEntry->mData.mDouble; + return NS_OK; + } + *aRetVal = 0.0; + return NS_ERROR_FAILURE; +} + +NS_IMETHODIMP +nsCommandParams::GetStringValue(const char* aName, nsAString& aRetVal) +{ + HashEntry* foundEntry = GetNamedEntry(aName); + if (foundEntry && foundEntry->mEntryType == eWStringType) { + NS_ASSERTION(foundEntry->mData.mString, "Null string"); + aRetVal.Assign(*foundEntry->mData.mString); + return NS_OK; + } + aRetVal.Truncate(); + return NS_ERROR_FAILURE; +} + +NS_IMETHODIMP +nsCommandParams::GetCStringValue(const char* aName, char** aRetVal) +{ + NS_ENSURE_ARG_POINTER(aRetVal); + + HashEntry* foundEntry = GetNamedEntry(aName); + if (foundEntry && foundEntry->mEntryType == eStringType) { + NS_ASSERTION(foundEntry->mData.mCString, "Null string"); + *aRetVal = ToNewCString(*foundEntry->mData.mCString); + return NS_OK; + } + *aRetVal = nullptr; + return NS_ERROR_FAILURE; +} + +NS_IMETHODIMP +nsCommandParams::GetISupportsValue(const char* aName, nsISupports** aRetVal) +{ + NS_ENSURE_ARG_POINTER(aRetVal); + + HashEntry* foundEntry = GetNamedEntry(aName); + if (foundEntry && foundEntry->mEntryType == eISupportsType) { + NS_IF_ADDREF(*aRetVal = foundEntry->mISupports.get()); + return NS_OK; + } + *aRetVal = nullptr; + return NS_ERROR_FAILURE; +} + +NS_IMETHODIMP +nsCommandParams::SetBooleanValue(const char* aName, bool aValue) +{ + HashEntry* foundEntry = GetOrMakeEntry(aName, eBooleanType); + if (!foundEntry) { + return NS_ERROR_OUT_OF_MEMORY; + } + foundEntry->mData.mBoolean = aValue; + return NS_OK; +} + +NS_IMETHODIMP +nsCommandParams::SetLongValue(const char* aName, int32_t aValue) +{ + HashEntry* foundEntry = GetOrMakeEntry(aName, eLongType); + if (!foundEntry) { + return NS_ERROR_OUT_OF_MEMORY; + } + foundEntry->mData.mLong = aValue; + return NS_OK; +} + +NS_IMETHODIMP +nsCommandParams::SetDoubleValue(const char* aName, double aValue) +{ + HashEntry* foundEntry = GetOrMakeEntry(aName, eDoubleType); + if (!foundEntry) { + return NS_ERROR_OUT_OF_MEMORY; + } + foundEntry->mData.mDouble = aValue; + return NS_OK; +} + +NS_IMETHODIMP +nsCommandParams::SetStringValue(const char* aName, const nsAString& aValue) +{ + HashEntry* foundEntry = GetOrMakeEntry(aName, eWStringType); + if (!foundEntry) { + return NS_ERROR_OUT_OF_MEMORY; + } + foundEntry->mData.mString = new nsString(aValue); + return NS_OK; +} + +NS_IMETHODIMP +nsCommandParams::SetCStringValue(const char* aName, const char* aValue) +{ + HashEntry* foundEntry = GetOrMakeEntry(aName, eStringType); + if (!foundEntry) { + return NS_ERROR_OUT_OF_MEMORY; + } + foundEntry->mData.mCString = new nsCString(aValue); + return NS_OK; +} + +NS_IMETHODIMP +nsCommandParams::SetISupportsValue(const char* aName, nsISupports* aValue) +{ + HashEntry* foundEntry = GetOrMakeEntry(aName, eISupportsType); + if (!foundEntry) { + return NS_ERROR_OUT_OF_MEMORY; + } + foundEntry->mISupports = aValue; // addrefs + return NS_OK; +} + +NS_IMETHODIMP +nsCommandParams::RemoveValue(const char* aName) +{ + mValuesHash.Remove((void*)aName); + return NS_OK; +} + +nsCommandParams::HashEntry* +nsCommandParams::GetNamedEntry(const char* aName) +{ + return static_cast(mValuesHash.Search((void*)aName)); +} + +nsCommandParams::HashEntry* +nsCommandParams::GetOrMakeEntry(const char* aName, uint8_t aEntryType) +{ + auto foundEntry = static_cast(mValuesHash.Search((void*)aName)); + if (foundEntry) { // reuse existing entry + foundEntry->Reset(aEntryType); + return foundEntry; + } + + foundEntry = static_cast(mValuesHash.Add((void*)aName, fallible)); + if (!foundEntry) { + return nullptr; + } + + // Use placement new. Our ctor does not clobber keyHash, which is important. + new (foundEntry) HashEntry(aEntryType, aName); + return foundEntry; +} + +PLDHashNumber +nsCommandParams::HashKey(const void* aKey) +{ + return HashString((const char*)aKey); +} + +bool +nsCommandParams::HashMatchEntry(const PLDHashEntryHdr* aEntry, const void* aKey) +{ + const char* keyString = (const char*)aKey; + const HashEntry* thisEntry = static_cast(aEntry); + return thisEntry->mEntryName.Equals(keyString); +} + +void +nsCommandParams::HashMoveEntry(PLDHashTable* aTable, + const PLDHashEntryHdr* aFrom, + PLDHashEntryHdr* aTo) +{ + const HashEntry* fromEntry = static_cast(aFrom); + HashEntry* toEntry = static_cast(aTo); + + new (toEntry) HashEntry(*fromEntry); + + fromEntry->~HashEntry(); +} + +void +nsCommandParams::HashClearEntry(PLDHashTable* aTable, PLDHashEntryHdr* aEntry) +{ + HashEntry* thisEntry = static_cast(aEntry); + thisEntry->~HashEntry(); +} -- cgit v1.2.3