本文整理汇总了C++中LOCK_TELEM函数的典型用法代码示例。如果您正苦于以下问题：C++ LOCK_TELEM函数的具体用法？C++ LOCK_TELEM怎么用？C++ LOCK_TELEM使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了LOCK_TELEM函数的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: lock
nsresult nsCacheEntryDescriptor::
nsInputStreamWrapper::LazyInit()
{
nsCacheServiceAutoLock lock(LOCK_TELEM(NSINPUTSTREAMWRAPPER_LAZYINIT));
nsCacheAccessMode mode;
nsresult rv = mDescriptor->GetAccessGranted(&mode);
if (NS_FAILED(rv)) return rv;
NS_ENSURE_TRUE(mode & nsICache::ACCESS_READ, NS_ERROR_UNEXPECTED);
nsCacheEntry* cacheEntry = mDescriptor->CacheEntry();
if (!cacheEntry) return NS_ERROR_NOT_AVAILABLE;
rv = nsCacheService::OpenInputStreamForEntry(cacheEntry, mode,
mStartOffset,
getter_AddRefs(mInput));
CACHE_LOG_DEBUG(("nsInputStreamWrapper::LazyInit "
"[entry=%p, wrapper=%p, mInput=%p, rv=%d]",
mDescriptor, this, mInput.get(), int(rv)));
if (NS_FAILED(rv)) return rv;
mInitialized = true;
return NS_OK;
}示例2: lock
NS_INTERFACE_MAP_END_THREADSAFE
nsresult nsCacheEntryDescriptor::
nsInputStreamWrapper::LazyInit()
{
// Check if we have the descriptor. If not we can't even grab the cache
// lock since it is not ensured that the cache service still exists.
if (!mDescriptor)
return NS_ERROR_NOT_AVAILABLE;
nsCacheServiceAutoLock lock(LOCK_TELEM(NSINPUTSTREAMWRAPPER_LAZYINIT));
nsCacheAccessMode mode;
nsresult rv = mDescriptor->GetAccessGranted(&mode);
if (NS_FAILED(rv)) return rv;
NS_ENSURE_TRUE(mode & nsICache::ACCESS_READ, NS_ERROR_UNEXPECTED);
nsCacheEntry* cacheEntry = mDescriptor->CacheEntry();
if (!cacheEntry) return NS_ERROR_NOT_AVAILABLE;
rv = nsCacheService::OpenInputStreamForEntry(cacheEntry, mode,
mStartOffset,
getter_AddRefs(mInput));
CACHE_LOG_DEBUG(("nsInputStreamWrapper::LazyInit "
"[entry=%p, wrapper=%p, mInput=%p, rv=%d]",
mDescriptor, this, mInput.get(), int(rv)));
if (NS_FAILED(rv)) return rv;
mInitialized = true;
return NS_OK;
}示例3: NS_ENSURE_ARG_POINTER
NS_IMETHODIMP
nsCacheEntryDescriptor::OpenOutputStream(uint32_t offset, nsIOutputStream ** result)
{
NS_ENSURE_ARG_POINTER(result);
{
nsCacheServiceAutoLock lock(LOCK_TELEM(NSCACHEENTRYDESCRIPTOR_OPENOUTPUTSTREAM));
if (!mCacheEntry) return NS_ERROR_NOT_AVAILABLE;
if (!mCacheEntry->IsStreamData()) return NS_ERROR_CACHE_DATA_IS_NOT_STREAM;
// ensure valid permissions
if (!(mAccessGranted & nsICache::ACCESS_WRITE))
return NS_ERROR_CACHE_WRITE_ACCESS_DENIED;
}
nsOutputStreamWrapper* cacheOutput = nullptr;
int32_t compressionLevel = nsCacheService::CacheCompressionLevel();
const char *val;
val = mCacheEntry->GetMetaDataElement("uncompressed-len");
if ((compressionLevel > 0) && val) {
cacheOutput = new nsCompressOutputStreamWrapper(this, offset);
} else {
// clear compression flag when compression disabled - see bug #715198
if (val) {
mCacheEntry->SetMetaDataElement("uncompressed-len", nullptr);
}
cacheOutput = new nsOutputStreamWrapper(this, offset);
}
if (!cacheOutput) return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(*result = cacheOutput);
return NS_OK;
}示例4: NS_ENSURE_ARG_POINTER
NS_IMETHODIMP
nsCacheEntryDescriptor::OpenInputStream(uint32_t offset, nsIInputStream ** result)
{
NS_ENSURE_ARG_POINTER(result);
nsInputStreamWrapper* cacheInput = nullptr;
{
nsCacheServiceAutoLock lock(LOCK_TELEM(NSCACHEENTRYDESCRIPTOR_OPENINPUTSTREAM));
if (!mCacheEntry) return NS_ERROR_NOT_AVAILABLE;
if (!mCacheEntry->IsStreamData()) return NS_ERROR_CACHE_DATA_IS_NOT_STREAM;
// Don't open any new stream when closing descriptor or clearing entries
if (mClosingDescriptor || nsCacheService::GetClearingEntries())
return NS_ERROR_NOT_AVAILABLE;
// ensure valid permissions
if (!(mAccessGranted & nsICache::ACCESS_READ))
return NS_ERROR_CACHE_READ_ACCESS_DENIED;
const char *val;
val = mCacheEntry->GetMetaDataElement("uncompressed-len");
if (val) {
cacheInput = new nsDecompressInputStreamWrapper(this, offset);
} else {
cacheInput = new nsInputStreamWrapper(this, offset);
}
if (!cacheInput) return NS_ERROR_OUT_OF_MEMORY;
mInputWrappers.AppendElement(cacheInput);
}
NS_ADDREF(*result = cacheInput);
return NS_OK;
}