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download::DownloadManager Class Reference

#include <download.h>

Collaboration diagram for download::DownloadManager:

Classes

struct  ProxyInfo
 

Public Types

enum  ProxySetModes { kSetProxyRegular = 0, kSetProxyFallback, kSetProxyBoth }
 

Public Member Functions

 DownloadManager ()
 
 ~DownloadManager ()
 
void Init (const unsigned max_pool_handles, const perf::StatisticsTemplate &statistics)
 
void Fini ()
 
void Spawn ()
 
DownloadManagerClone (const perf::StatisticsTemplate &statistics)
 
Failures Fetch (JobInfo *info)
 
void SetCredentialsAttachment (CredentialsAttachment *ca)
 
std::string GetDnsServer () const
 
void SetDnsServer (const std::string &address)
 
void SetDnsParameters (const unsigned retries, const unsigned timeout_ms)
 
void SetDnsTtlLimits (const unsigned min_seconds, const unsigned max_seconds)
 
void SetIpPreference (const dns::IpPreference preference)
 
void SetTimeout (const unsigned seconds_proxy, const unsigned seconds_direct)
 
void GetTimeout (unsigned *seconds_proxy, unsigned *seconds_direct)
 
void SetLowSpeedLimit (const unsigned low_speed_limit)
 
void SetHostChain (const std::string &host_list)
 
void SetHostChain (const std::vector< std::string > &host_list)
 
void GetHostInfo (std::vector< std::string > *host_chain, std::vector< int > *rtt, unsigned *current_host)
 
void ProbeHosts ()
 
bool ProbeGeo ()
 
bool GeoSortServers (std::vector< std::string > *servers, std::vector< uint64_t > *output_order=NULL)
 
void SwitchHost ()
 
void SetProxyChain (const std::string &proxy_list, const std::string &fallback_proxy_list, const ProxySetModes set_mode)
 
void GetProxyInfo (std::vector< std::vector< ProxyInfo > > *proxy_chain, unsigned *current_group, unsigned *fallback_group)
 
std::string GetProxyList ()
 
std::string GetFallbackProxyList ()
 
void RebalanceProxies ()
 
void SwitchProxyGroup ()
 
void SetProxyGroupResetDelay (const unsigned seconds)
 
void SetHostResetDelay (const unsigned seconds)
 
void SetRetryParameters (const unsigned max_retries, const unsigned backoff_init_ms, const unsigned backoff_max_ms)
 
void SetMaxIpaddrPerProxy (unsigned limit)
 
void SetProxyTemplates (const std::string &direct, const std::string &forced)
 
void EnableInfoHeader ()
 
void EnableRedirects ()
 
void UseSystemCertificatePath ()
 
unsigned num_hosts ()
 
dns::IpPreference opt_ip_preference () const
 

Static Public Member Functions

static int ParseHttpCode (const char digits[3])
 

Static Public Attributes

static const int kProbeUnprobed = -1
 
static const int kProbeDown = -2
 
static const int kProbeGeo = -3
 
static const unsigned kMaxMemSize = 1024*1024
 
static const unsigned kDnsDefaultRetries = 1
 
static const unsigned kDnsDefaultTimeoutMs = 3000
 

Private Member Functions

 FRIEND_TEST (T_Download, ValidateGeoReply)
 
 FRIEND_TEST (T_Download, StripDirect)
 
bool StripDirect (const std::string &proxy_list, std::string *cleaned_list)
 
bool ValidateGeoReply (const std::string &reply_order, const unsigned expected_size, std::vector< uint64_t > *reply_vals)
 
void SwitchHost (JobInfo *info)
 
void SwitchProxy (JobInfo *info)
 
void SetRandomProxyUnlocked ()
 
void RebalanceProxiesUnlocked ()
 
CURL * AcquireCurlHandle ()
 
void ReleaseCurlHandle (CURL *handle)
 
void ReleaseCredential (JobInfo *info)
 
void InitializeRequest (JobInfo *info, CURL *handle)
 
void SetUrlOptions (JobInfo *info)
 
void ValidateProxyIpsUnlocked (const std::string &url, const dns::Host &host)
 
void UpdateStatistics (CURL *handle)
 
bool CanRetry (const JobInfo *info)
 
void Backoff (JobInfo *info)
 
void SetNocache (JobInfo *info)
 
void SetRegularCache (JobInfo *info)
 
bool VerifyAndFinalize (const int curl_error, JobInfo *info)
 
void InitHeaders ()
 
void FiniHeaders ()
 
void CloneProxyConfig (DownloadManager *clone)
 
std::vector< ProxyInfo > * current_proxy_group () const
 
ProxyInfocurrent_proxy () const
 

Static Private Member Functions

static int CallbackCurlSocket (CURL *easy, curl_socket_t s, int action, void *userp, void *socketp)
 
static void * MainDownload (void *data)
 

Private Attributes

Prng prng_
 
std::set< CURL * > * pool_handles_idle_
 
std::set< CURL * > * pool_handles_inuse_
 
uint32_t pool_max_handles_
 
CURLM * curl_multi_
 
HeaderListsheader_lists_
 
curl_slist * default_headers_
 
char * user_agent_
 
pthread_t thread_download_
 
atomic_int32 multi_threaded_
 
int pipe_terminate_ [2]
 
int pipe_jobs_ [2]
 
struct pollfd * watch_fds_
 
uint32_t watch_fds_size_
 
uint32_t watch_fds_inuse_
 
uint32_t watch_fds_max_
 
pthread_mutex_t * lock_options_
 
pthread_mutex_t * lock_synchronous_mode_
 
std::string opt_dns_server_
 
unsigned opt_timeout_proxy_
 
unsigned opt_timeout_direct_
 
unsigned opt_low_speed_limit_
 
unsigned opt_max_retries_
 
unsigned opt_backoff_init_ms_
 
unsigned opt_backoff_max_ms_
 
bool enable_info_header_
 
bool opt_ipv4_only_
 
bool follow_redirects_
 
std::vector< std::string > * opt_host_chain_
 
std::vector< int > * opt_host_chain_rtt_
 
unsigned opt_host_chain_current_
 
std::vector< std::vector
< ProxyInfo > > * 
opt_proxy_groups_
 
unsigned opt_proxy_groups_current_
 
unsigned opt_proxy_groups_current_burned_
 
unsigned opt_proxy_groups_fallback_
 
unsigned opt_num_proxies_
 
std::string opt_proxy_list_
 
std::string opt_proxy_fallback_list_
 
dns::NormalResolverresolver_
 
dns::IpPreference opt_ip_preference_
 
std::string proxy_template_direct_
 
std::string proxy_template_forced_
 
time_t opt_timestamp_backup_proxies_
 
time_t opt_timestamp_failover_proxies_
 
unsigned opt_proxy_groups_reset_after_
 
time_t opt_timestamp_backup_host_
 
unsigned opt_host_reset_after_
 
CredentialsAttachmentcredentials_attachment_
 
Counterscounters_
 
SslCertificateStore ssl_certificate_store_
 

Detailed Description

Note when adding new fields: Clone() probably needs to be adjusted, too. TODO(jblomer): improve ordering of members

Definition at line 349 of file download.h.

Member Enumeration Documentation

Enumerator
kSetProxyRegular 
kSetProxyFallback 
kSetProxyBoth 

Definition at line 366 of file download.h.

Constructor & Destructor Documentation

download::DownloadManager::DownloadManager ( )

Definition at line 1519 of file download.cc.

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download::DownloadManager::~DownloadManager ( )

Definition at line 1577 of file download.cc.

Member Function Documentation

CURL * download::DownloadManager::AcquireCurlHandle ( )
private

Gets an idle CURL handle from the pool. Creates a new one and adds it to the pool if necessary.

Definition at line 793 of file download.cc.

Referenced by MainDownload().

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void download::DownloadManager::Backoff ( JobInfo info)
private

Backoff for retry to introduce a jitter into a cluster of requesting cvmfs nodes. Retry only when HTTP caching is on.

Returns
true if backoff has been performed, false otherwise

Definition at line 1169 of file download.cc.

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int download::DownloadManager::CallbackCurlSocket ( CURL *  easy,
curl_socket_t  s,
int  action,
void *  userp,
void *  socketp 
)
staticprivate

Called when new curl sockets arrive or existing curl sockets depart.

Definition at line 418 of file download.cc.

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bool download::DownloadManager::CanRetry ( const JobInfo info)
private

Retry if possible if not on no-cache and if not already done too often.

Definition at line 1153 of file download.cc.

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DownloadManager * download::DownloadManager::Clone ( const perf::StatisticsTemplate statistics)

Creates a copy of the existing download manager. Must only be called in single-threaded stage because it calls curl_global_init().

Definition at line 2720 of file download.cc.

Referenced by MountPoint::SetupExternalDownloadMgr().

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void download::DownloadManager::CloneProxyConfig ( DownloadManager clone)
private

Definition at line 2757 of file download.cc.

ProxyInfo* download::DownloadManager::current_proxy ( ) const
inlineprivate

Definition at line 492 of file download.h.

std::vector<ProxyInfo>* download::DownloadManager::current_proxy_group ( ) const
inlineprivate

Definition at line 487 of file download.h.

void download::DownloadManager::EnableInfoHeader ( )

Definition at line 2703 of file download.cc.

Referenced by MountPoint::SetupHttpTuning().

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void download::DownloadManager::EnableRedirects ( )

Definition at line 2708 of file download.cc.

Referenced by MountPoint::SetupHttpTuning().

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Failures download::DownloadManager::Fetch ( JobInfo info)

Downloads data from an unsecure outside channel (currently HTTP or file).

Definition at line 1728 of file download.cc.

Referenced by download::AutoProxy(), manifest::DoFetch(), manifest::DoVerify(), HttpObjectFetcher< CatalogT, HistoryT, ReflogT >::Download(), publish::DownloadRootObjects(), cvmfs::Fetcher::Fetch(), swissknife::Assistant::FetchObject(), publish::IsMasterReplica(), and swissknife::MainWorker().

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void download::DownloadManager::Fini ( )

Definition at line 1662 of file download.cc.

Referenced by download::MainResolveProxyDescription(), publish::Repository(), MountPoint::~MountPoint(), and publish::~Repository().

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void download::DownloadManager::FiniHeaders ( )
private

Definition at line 1607 of file download.cc.

download::DownloadManager::FRIEND_TEST ( T_Download  ,
ValidateGeoReply   
)
private
download::DownloadManager::FRIEND_TEST ( T_Download  ,
StripDirect   
)
private
bool download::DownloadManager::GeoSortServers ( std::vector< std::string > *  servers,
std::vector< uint64_t > *  output_order = NULL 
)

Definition at line 2136 of file download.cc.

Referenced by MountPoint::SetupExternalDownloadMgr().

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std::string download::DownloadManager::GetDnsServer ( ) const

Gets the DNS sever.

Definition at line 1820 of file download.cc.

Referenced by TalkManager::MainResponder().

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string download::DownloadManager::GetFallbackProxyList ( )

Definition at line 2605 of file download.cc.

void download::DownloadManager::GetHostInfo ( std::vector< std::string > *  host_chain,
std::vector< int > *  rtt,
unsigned *  current_host 
)

Retrieves the currently set chain of hosts, their round trip times, and the currently used host.

Definition at line 1952 of file download.cc.

Referenced by MountPoint::CreateDownloadManagers(), TalkManager::FormatHostInfo(), ExternalHostMagicXattr::GetValue(), HostMagicXattr::GetValue(), HostListMagicXattr::GetValue(), download::ParsePac(), and MountPoint::SetupExternalDownloadMgr().

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void download::DownloadManager::GetProxyInfo ( std::vector< std::vector< ProxyInfo > > *  proxy_chain,
unsigned *  current_group,
unsigned *  fallback_group 
)

Retrieves the proxy chain, optionally the currently active load-balancing group, and optionally the index of the first fallback proxy group. If there are no fallback proxies, the index will equal the size of the proxy chain.

Definition at line 2576 of file download.cc.

Referenced by TalkManager::FormatProxyInfo(), and ProxyMagicXattr::GetValue().

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string download::DownloadManager::GetProxyList ( )

Definition at line 2601 of file download.cc.

void download::DownloadManager::GetTimeout ( unsigned *  seconds_proxy,
unsigned *  seconds_direct 
)

Receives the currently active timeout values.

Definition at line 1908 of file download.cc.

Referenced by ExternalTimeoutMagicXattr::GetValue(), TimeoutMagicXattr::GetValue(), TimeoutDirectMagicXattr::GetValue(), TalkManager::MainResponder(), and MountPoint::SetupExternalDownloadMgr().

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void download::DownloadManager::Init ( const unsigned  max_pool_handles,
const perf::StatisticsTemplate statistics 
)

Definition at line 1614 of file download.cc.

Referenced by Clone(), MountPoint::CreateDownloadManagers(), download::MainResolveProxyDescription(), and publish::Repository().

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void download::DownloadManager::InitHeaders ( )
private

Definition at line 1584 of file download.cc.

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void download::DownloadManager::InitializeRequest ( JobInfo info,
CURL *  handle 
)
private

HTTP request options: set the URL and other options such as timeout and proxy.

Definition at line 834 of file download.cc.

Referenced by MainDownload().

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void * download::DownloadManager::MainDownload ( void *  data)
staticprivate

Worker thread event loop. Waits on new JobInfo structs on a pipe.

Definition at line 495 of file download.cc.

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unsigned download::DownloadManager::num_hosts ( )
inline

Definition at line 449 of file download.h.

Referenced by manifest::Fetch().

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dns::IpPreference download::DownloadManager::opt_ip_preference ( ) const
inline

Definition at line 454 of file download.h.

Referenced by ResolvConfEventHandler::SetDnsAddress().

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int download::DownloadManager::ParseHttpCode ( const char  digits[3])
static

-1 of digits is not a valid Http return code

Definition at line 402 of file download.cc.

bool download::DownloadManager::ProbeGeo ( )

Uses the Geo-API of Stratum 1s to let any of them order the list of servers and fallback proxies (if any). Tries at most three random Stratum 1s before giving up. If you change the host list in between by SetHostChain() or the fallback proxy list by SetProxyChain(), they will be overwritten by this function.

Definition at line 2225 of file download.cc.

Referenced by MountPoint::CreateDownloadManagers(), and TalkManager::MainResponder().

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void download::DownloadManager::ProbeHosts ( )

Orders the hostlist according to RTT of downloading .cvmfschecksum. Sets the current host to the best-responsive host. If you change the host list in between by SetHostChain(), it will be overwritten by this function.

Definition at line 2089 of file download.cc.

Referenced by TalkManager::MainResponder().

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void download::DownloadManager::RebalanceProxies ( )

Definition at line 2633 of file download.cc.

Referenced by TalkManager::MainResponder().

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void download::DownloadManager::RebalanceProxiesUnlocked ( )
private

Selects a new random proxy in the current load-balancing group. Resets the "burned" counter.

Definition at line 2623 of file download.cc.

void download::DownloadManager::ReleaseCredential ( JobInfo info)
private

Frees the storage associated with the authz attachment from the job

Definition at line 1218 of file download.cc.

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void download::DownloadManager::ReleaseCurlHandle ( CURL *  handle)
private

Definition at line 816 of file download.cc.

Referenced by MainDownload().

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void download::DownloadManager::SetCredentialsAttachment ( CredentialsAttachment ca)

Used by the client to connect the authz session manager to the download manager.

Definition at line 1812 of file download.cc.

Referenced by MountPoint::CreateDownloadManagers().

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void download::DownloadManager::SetDnsParameters ( const unsigned  retries,
const unsigned  timeout_ms 
)

Sets the DNS query timeout parameters.

Definition at line 1846 of file download.cc.

Referenced by Clone(), and MountPoint::SetupDnsTuning().

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void download::DownloadManager::SetDnsServer ( const std::string &  address)

Sets a DNS server. Only for testing as it cannot be reverted to the system default.

Definition at line 1828 of file download.cc.

Referenced by Clone(), TalkManager::MainResponder(), ResolvConfEventHandler::SetDnsAddress(), and MountPoint::SetupDnsTuning().

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void download::DownloadManager::SetDnsTtlLimits ( const unsigned  min_seconds,
const unsigned  max_seconds 
)

Definition at line 1864 of file download.cc.

Referenced by Clone(), and MountPoint::SetupDnsTuning().

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void download::DownloadManager::SetHostChain ( const std::string &  host_list)
void download::DownloadManager::SetHostChain ( const std::vector< std::string > &  host_list)

Definition at line 1926 of file download.cc.

void download::DownloadManager::SetHostResetDelay ( const unsigned  seconds)

Definition at line 2667 of file download.cc.

Referenced by MountPoint::SetupHttpTuning().

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void download::DownloadManager::SetIpPreference ( const dns::IpPreference  preference)

Definition at line 1874 of file download.cc.

Referenced by MountPoint::SetupDnsTuning().

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void download::DownloadManager::SetLowSpeedLimit ( const unsigned  low_speed_limit)

Sets contains the average transfer speed in bytes per second that the transfer should be below during CURLOPT_LOW_SPEED_TIME seconds for libcurl to consider it to be too slow and abort. Only effective for new connections.

Definition at line 1899 of file download.cc.

Referenced by MountPoint::SetupHttpTuning().

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void download::DownloadManager::SetMaxIpaddrPerProxy ( unsigned  limit)

Definition at line 2687 of file download.cc.

Referenced by Clone(), and MountPoint::SetupDnsTuning().

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void download::DownloadManager::SetNocache ( JobInfo info)
private

Definition at line 1191 of file download.cc.

void download::DownloadManager::SetProxyChain ( const std::string &  proxy_list,
const std::string &  fallback_proxy_list,
const ProxySetModes  set_mode 
)

Parses a list of ';'- and '|'-separated proxy servers and fallback proxy servers for the proxy groups. The empty string for both removes the proxy chain. The set_mode parameter can be used to set either proxies (leaving fallback proxies unchanged) or fallback proxies (leaving regular proxies unchanged) or both.

Definition at line 2428 of file download.cc.

Referenced by MountPoint::CreateDownloadManagers(), TalkManager::MainResponder(), publish::Repository(), and MountPoint::SetupExternalDownloadMgr().

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void download::DownloadManager::SetProxyGroupResetDelay ( const unsigned  seconds)

Definition at line 2657 of file download.cc.

Referenced by MountPoint::SetupHttpTuning().

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void download::DownloadManager::SetProxyTemplates ( const std::string &  direct,
const std::string &  forced 
)

Definition at line 2693 of file download.cc.

Referenced by MountPoint::CreateDownloadManagers().

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void download::DownloadManager::SetRandomProxyUnlocked ( )
private

Selects a new random non-burned proxy in the current load-balancing group

Definition at line 2612 of file download.cc.

void download::DownloadManager::SetRegularCache ( JobInfo info)
private

Reverse operation of SetNocache. Makes sure that "no-cache" header disappears from the list of headers to let proxies work normally.

Definition at line 1205 of file download.cc.

void download::DownloadManager::SetRetryParameters ( const unsigned  max_retries,
const unsigned  backoff_init_ms,
const unsigned  backoff_max_ms 
)

Definition at line 2676 of file download.cc.

Referenced by MountPoint::SetupHttpTuning().

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void download::DownloadManager::SetTimeout ( const unsigned  seconds_proxy,
const unsigned  seconds_direct 
)

Sets two timeout values for proxied and for direct conections, respectively. The timeout counts for all sorts of connection phases, DNS, HTTP connect, etc.

Definition at line 1885 of file download.cc.

Referenced by TalkManager::MainResponder(), MountPoint::SetupExternalDownloadMgr(), and MountPoint::SetupHttpTuning().

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void download::DownloadManager::SetUrlOptions ( JobInfo info)
private

Sets the URL specific options such as host to use and timeout. It might also set an error code, in which case the further processing should react on.

Definition at line 902 of file download.cc.

Referenced by MainDownload().

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void download::DownloadManager::Spawn ( )

Spawns the I/O worker thread and switches the module in multi-threaded mode. No way back except Fini(); Init();

Definition at line 1713 of file download.cc.

Referenced by LibContext::EnableMultiThreaded(), and Spawn().

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bool download::DownloadManager::StripDirect ( const std::string &  proxy_list,
std::string *  cleaned_list 
)
private

Removes DIRECT from a list of ';' and '|' separated proxies.

Returns
true if DIRECT was present, false otherwise

Definition at line 2388 of file download.cc.

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void download::DownloadManager::SwitchHost ( )

Definition at line 2078 of file download.cc.

Referenced by manifest::Fetch(), and TalkManager::MainResponder().

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void download::DownloadManager::SwitchHost ( JobInfo info)
private

Switches to the next host in the chain. If info is set, switch only if the current host is identical to the one used by info, otherwise another transfer has already done the switch.

Definition at line 2037 of file download.cc.

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void download::DownloadManager::SwitchProxy ( JobInfo info)
private

Jumps to the next proxy in the ring of forward proxy servers. Selects one randomly from a load-balancing group.

If info is set, switch only if the current proxy is identical to the one used by info, otherwise another transfer has already done the switch.

Definition at line 1971 of file download.cc.

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void download::DownloadManager::SwitchProxyGroup ( )

Switches to the next load-balancing group of proxy servers.

Definition at line 2642 of file download.cc.

Referenced by TalkManager::MainResponder().

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void download::DownloadManager::UpdateStatistics ( CURL *  handle)
private

Adds transfer time and downloaded bytes to the global counters.

Definition at line 1135 of file download.cc.

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void download::DownloadManager::UseSystemCertificatePath ( )

Definition at line 2712 of file download.cc.

Referenced by MountPoint::CreateDownloadManagers(), and publish::Repository().

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bool download::DownloadManager::ValidateGeoReply ( const std::string &  reply_order,
const unsigned  expected_size,
std::vector< uint64_t > *  reply_vals 
)
private

Validates a string of the form "1,4,2,3" representing in which order the the expected_size number of hosts should be put for optimal geographic proximity. Returns false if the reply_order string is invalid, otherwise fills in the reply_vals array with zero-based order indexes (e.g. [0,3,1,2]) and returns true.

Definition at line 2348 of file download.cc.

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void download::DownloadManager::ValidateProxyIpsUnlocked ( const std::string &  url,
const dns::Host host 
)
private

Checks if the name resolving information is still up to date. The host object should be one from the current load-balance group. If the information changed, gather new set of resolved IPs and, if different, exchange them in the load-balance group on the fly. In the latter case, also rebalance the proxies. The options mutex needs to be open.

Definition at line 1072 of file download.cc.

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bool download::DownloadManager::VerifyAndFinalize ( const int  curl_error,
JobInfo info 
)
private

Checks the result of a curl download and implements the failure logic, such as changing the proxy server. Takes care of cleanup.

Returns
true if another download should be performed, false otherwise

Definition at line 1234 of file download.cc.

Referenced by MainDownload().

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Member Data Documentation

Counters* download::DownloadManager::counters_
private

Writes and reads should be atomic because reading happens in a different thread than writing.

Definition at line 614 of file download.h.

Referenced by MainDownload().

CredentialsAttachment* download::DownloadManager::credentials_attachment_
private

Definition at line 608 of file download.h.

Referenced by Clone().

CURLM* download::DownloadManager::curl_multi_
private

Definition at line 501 of file download.h.

Referenced by MainDownload().

curl_slist* download::DownloadManager::default_headers_
private

Definition at line 503 of file download.h.

bool download::DownloadManager::enable_info_header_
private

Definition at line 525 of file download.h.

Referenced by Clone().

bool download::DownloadManager::follow_redirects_
private

Definition at line 527 of file download.h.

Referenced by Clone().

HeaderLists* download::DownloadManager::header_lists_
private

Definition at line 502 of file download.h.

const unsigned download::DownloadManager::kDnsDefaultRetries = 1
static

Definition at line 391 of file download.h.

Referenced by MountPoint::SetupDnsTuning().

const unsigned download::DownloadManager::kDnsDefaultTimeoutMs = 3000
static

Definition at line 392 of file download.h.

Referenced by MountPoint::SetupDnsTuning().

const unsigned download::DownloadManager::kMaxMemSize = 1024*1024
static

Do not download files larger than 1M into memory.

Definition at line 389 of file download.h.

const int download::DownloadManager::kProbeDown = -2
static

The rtt to a stratum 1 could not be determined because the stratum 1 was unreachable.

Definition at line 380 of file download.h.

Referenced by TalkManager::FormatHostInfo().

const int download::DownloadManager::kProbeGeo = -3
static

The stratum 1 server was put in order according to a Geo-API result

Definition at line 384 of file download.h.

Referenced by TalkManager::FormatHostInfo().

const int download::DownloadManager::kProbeUnprobed = -1
static

No attempt was made to order stratum 1 servers

Definition at line 375 of file download.h.

Referenced by TalkManager::FormatHostInfo().

pthread_mutex_t* download::DownloadManager::lock_options_
private

Definition at line 516 of file download.h.

pthread_mutex_t* download::DownloadManager::lock_synchronous_mode_
private

Definition at line 517 of file download.h.

atomic_int32 download::DownloadManager::multi_threaded_
private

Definition at line 507 of file download.h.

unsigned download::DownloadManager::opt_backoff_init_ms_
private

Definition at line 523 of file download.h.

Referenced by Clone().

unsigned download::DownloadManager::opt_backoff_max_ms_
private

Definition at line 524 of file download.h.

Referenced by Clone().

std::string download::DownloadManager::opt_dns_server_
private

Definition at line 518 of file download.h.

std::vector<std::string>* download::DownloadManager::opt_host_chain_
private

Definition at line 530 of file download.h.

Referenced by Clone(), and num_hosts().

unsigned download::DownloadManager::opt_host_chain_current_
private

Definition at line 536 of file download.h.

std::vector<int>* download::DownloadManager::opt_host_chain_rtt_
private

Created by SetHostChain(), filled by probe_hosts. Contains time to get .cvmfschecksum in ms. -1 is unprobed, -2 is error.

Definition at line 535 of file download.h.

Referenced by Clone().

unsigned download::DownloadManager::opt_host_reset_after_
private

Definition at line 606 of file download.h.

Referenced by Clone().

dns::IpPreference download::DownloadManager::opt_ip_preference_
private

If a proxy has IPv4 and IPv6 addresses, which one to prefer

Definition at line 575 of file download.h.

Referenced by Clone(), and opt_ip_preference().

bool download::DownloadManager::opt_ipv4_only_
private

Definition at line 526 of file download.h.

unsigned download::DownloadManager::opt_low_speed_limit_
private

Definition at line 521 of file download.h.

Referenced by Clone().

unsigned download::DownloadManager::opt_max_retries_
private

Definition at line 522 of file download.h.

Referenced by Clone().

unsigned download::DownloadManager::opt_num_proxies_
private

Overall number of proxies summed over all the groups.

Definition at line 557 of file download.h.

Referenced by CloneProxyConfig().

std::string download::DownloadManager::opt_proxy_fallback_list_
private

The original proxy fallback list provided to SetProxyChain.

Definition at line 565 of file download.h.

Referenced by CloneProxyConfig().

std::vector< std::vector<ProxyInfo> >* download::DownloadManager::opt_proxy_groups_
private

Definition at line 539 of file download.h.

Referenced by CloneProxyConfig(), current_proxy(), and current_proxy_group().

unsigned download::DownloadManager::opt_proxy_groups_current_
private

The current load-balancing group (first dimension in opt_proxy_groups_).

Definition at line 543 of file download.h.

Referenced by CloneProxyConfig(), current_proxy(), and current_proxy_group().

unsigned download::DownloadManager::opt_proxy_groups_current_burned_
private

Number of proxy servers that failed within current load-balance group. Between 0 and (*opt_proxy_groups_)[opt_proxy_groups_current_].size().

Definition at line 548 of file download.h.

Referenced by CloneProxyConfig().

unsigned download::DownloadManager::opt_proxy_groups_fallback_
private

The index of the first fallback proxy group. If there are none, it is set to the number of regular proxy groups.

Definition at line 553 of file download.h.

Referenced by CloneProxyConfig().

unsigned download::DownloadManager::opt_proxy_groups_reset_after_
private

Definition at line 598 of file download.h.

Referenced by Clone().

std::string download::DownloadManager::opt_proxy_list_
private

The original proxy list provided to SetProxyChain.

Definition at line 561 of file download.h.

Referenced by CloneProxyConfig().

unsigned download::DownloadManager::opt_timeout_direct_
private

Definition at line 520 of file download.h.

Referenced by Clone().

unsigned download::DownloadManager::opt_timeout_proxy_
private

Definition at line 519 of file download.h.

Referenced by Clone().

time_t download::DownloadManager::opt_timestamp_backup_host_
private

Similarly to proxy group reset, we'd also like to reset the host after a failover. Host outages can last longer and might come with a separate reset delay.

Definition at line 605 of file download.h.

time_t download::DownloadManager::opt_timestamp_backup_proxies_
private

More than one proxy group can be considered as group of primary proxies followed by backup proxy groups, e.g. at another site. If opt_proxy_groups_reset_after_ is > 0, cvmfs will reset its proxy group to the first one after opt_proxy_groups_reset_after_ seconds are elapsed.

Definition at line 596 of file download.h.

time_t download::DownloadManager::opt_timestamp_failover_proxies_
private

Definition at line 597 of file download.h.

int download::DownloadManager::pipe_jobs_[2]
private

Definition at line 510 of file download.h.

Referenced by MainDownload().

int download::DownloadManager::pipe_terminate_[2]
private

Definition at line 508 of file download.h.

Referenced by MainDownload().

std::set<CURL *>* download::DownloadManager::pool_handles_idle_
private

Definition at line 498 of file download.h.

std::set<CURL *>* download::DownloadManager::pool_handles_inuse_
private

Definition at line 499 of file download.h.

Referenced by MainDownload().

uint32_t download::DownloadManager::pool_max_handles_
private

Definition at line 500 of file download.h.

Prng download::DownloadManager::prng_
private

Definition at line 497 of file download.h.

std::string download::DownloadManager::proxy_template_direct_
private

Used to replace @ in the Geo-API calls to order Stratum 1 servers, in case the active proxy is DIRECT (no proxy). Should be a UUID identifying the host.

Definition at line 582 of file download.h.

Referenced by Clone().

std::string download::DownloadManager::proxy_template_forced_
private

Used to force a value for @ in the Geo-API calls to order Stratum 1 servers. If empty, the fully qualified domain name of the active proxy server is used.

Definition at line 588 of file download.h.

Referenced by Clone().

dns::NormalResolver* download::DownloadManager::resolver_
private

Used to resolve proxy addresses (host addresses are resolved by the proxy).

Definition at line 570 of file download.h.

SslCertificateStore download::DownloadManager::ssl_certificate_store_
private

Carries the path settings for SSL certificates

Definition at line 619 of file download.h.

Referenced by Clone().

pthread_t download::DownloadManager::thread_download_
private

Definition at line 506 of file download.h.

char* download::DownloadManager::user_agent_
private

Definition at line 504 of file download.h.

struct pollfd* download::DownloadManager::watch_fds_
private

Definition at line 511 of file download.h.

Referenced by CallbackCurlSocket(), and MainDownload().

uint32_t download::DownloadManager::watch_fds_inuse_
private

Definition at line 513 of file download.h.

Referenced by CallbackCurlSocket(), and MainDownload().

uint32_t download::DownloadManager::watch_fds_max_
private

Definition at line 514 of file download.h.

Referenced by CallbackCurlSocket().

uint32_t download::DownloadManager::watch_fds_size_
private

Definition at line 512 of file download.h.

Referenced by CallbackCurlSocket(), and MainDownload().


The documentation for this class was generated from the following files: