cvmfs::Fetcher::ThreadLocalStorage Struct Reference

Collaboration diagram for cvmfs::Fetcher::ThreadLocalStorage:

Public Member Functions
	ThreadLocalStorage ()

Public Attributes
Fetcher *	fetcher
int	pipe_wait [2]
std::vector< int >	other_pipes_waiting
download::JobInfo	download_job

Detailed Description

Multiple threads might want to download the same object at the same time. If that happens, only the first thread performs the download. The other threads wait on a pipe for a notification from the first thread.

Definition at line 136 of file fetch.h.

Constructor & Destructor Documentation

cvmfs::Fetcher::ThreadLocalStorage::ThreadLocalStorage ( )

inline

Definition at line 137 of file fetch.h.

Member Data Documentation

download::JobInfo cvmfs::Fetcher::ThreadLocalStorage::download_job

It is sufficient to construct the JobInfo object once per thread, not on every call to Fetch().

Definition at line 161 of file fetch.h.

Referenced by cvmfs::Fetcher::Fetch(), and cvmfs::Fetcher::GetTls().

Fetcher* cvmfs::Fetcher::ThreadLocalStorage::fetcher

Used during cleanup to find tls_blocks_.

Definition at line 146 of file fetch.h.

Referenced by cvmfs::Fetcher::GetTls(), ThreadLocalStorage(), and cvmfs::TLSDestructor().

std::vector<int> cvmfs::Fetcher::ThreadLocalStorage::other_pipes_waiting

Writer ends of all the pipes of threads that want to download the same object.

Definition at line 156 of file fetch.h.

Referenced by cvmfs::Fetcher::Fetch(), and cvmfs::Fetcher::SignalWaitingThreads().

int cvmfs::Fetcher::ThreadLocalStorage::pipe_wait[2]

Wait on the reading end if another thread is already downloading the same object.

Definition at line 151 of file fetch.h.

Referenced by cvmfs::Fetcher::CleanupTls(), cvmfs::Fetcher::Fetch(), cvmfs::Fetcher::GetTls(), and ThreadLocalStorage().

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The documentation for this struct was generated from the following file:

• /home/sftnight/jenkins/workspace/CvmfsDoxygen/label/docker-x86_64/cvmfs/cvmfs/fetch.h