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XrdPfc.cc File Reference
#include <fcntl.h>
#include <sstream>
#include <algorithm>
#include <sys/statvfs.h>
#include "XrdCl/XrdClConstants.hh"
#include "XrdCl/XrdClURL.hh"
#include "XrdOuc/XrdOucEnv.hh"
#include "XrdOuc/XrdOucUtils.hh"
#include "XrdOuc/XrdOucPrivateUtils.hh"
#include "XrdSys/XrdSysPthread.hh"
#include "XrdSys/XrdSysTimer.hh"
#include "XrdSys/XrdSysTrace.hh"
#include "XrdSys/XrdSysXAttr.hh"
#include "XrdXrootd/XrdXrootdGStream.hh"
#include "XrdOss/XrdOss.hh"
#include "XrdPfc.hh"
#include "XrdPfcTrace.hh"
#include "XrdPfcFSctl.hh"
#include "XrdPfcInfo.hh"
#include "XrdPfcIOFile.hh"
#include "XrdPfcIOFileBlock.hh"
Include dependency graph for XrdPfc.cc:

Go to the source code of this file.

Functions

void * PrefetchThread (void *)
void * ProcessWriteTaskThread (void *)
void * PurgeThread (void *)
void * ResourceMonitorHeartBeatThread (void *)
XrdOucCacheXrdOucGetCache (XrdSysLogger *logger, const char *config_filename, const char *parameters, XrdOucEnv *env)

Variables

XrdSysXAttrXrdSysXAttrActive

Function Documentation

◆ PrefetchThread()

void * PrefetchThread ( void * )

Definition at line 74 of file XrdPfc.cc.

75{
77 return 0;
78}
static Cache & GetInstance()
Singleton access.
Definition XrdPfc.cc:163
void Prefetch()
Definition XrdPfc.cc:754

References XrdPfc::Cache::GetInstance(), and XrdPfc::Cache::Prefetch().

Referenced by XrdOucGetCache().

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◆ ProcessWriteTaskThread()

void * ProcessWriteTaskThread ( void * )

Definition at line 68 of file XrdPfc.cc.

69{
71 return 0;
72}
void ProcessWriteTasks()
Separate task which writes blocks from ram to disk.
Definition XrdPfc.cc:308

References XrdPfc::Cache::GetInstance(), and XrdPfc::Cache::ProcessWriteTasks().

Referenced by XrdOucGetCache().

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◆ PurgeThread()

void * PurgeThread ( void * )

Definition at line 62 of file XrdPfc.cc.

63{
65 return 0;
66}
void Purge()
Thread function invoked to scan and purge files from disk when needed.

References XrdPfc::Cache::GetInstance(), and XrdPfc::Cache::Purge().

Referenced by XrdOucGetCache().

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◆ ResourceMonitorHeartBeatThread()

void * ResourceMonitorHeartBeatThread ( void * )

Definition at line 56 of file XrdPfc.cc.

57{
59 return 0;
60}
void ResourceMonitorHeartBeat()
Thread function checking resource usage periodically.

References XrdPfc::Cache::GetInstance(), and XrdPfc::Cache::ResourceMonitorHeartBeat().

Referenced by XrdOucGetCache().

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◆ XrdOucGetCache()

XrdOucCache * XrdOucGetCache ( XrdSysLogger * logger,
const char * config_filename,
const char * parameters,
XrdOucEnv * env )

Definition at line 84 of file XrdPfc.cc.

88{
89 XrdSysError err(logger, "");
90 err.Say("++++++ Proxy file cache initialization started.");
91
92 if ( ! env ||
93 ! (XrdPfc::Cache::schedP = (XrdScheduler*) env->GetPtr("XrdScheduler*")))
94 {
96 XrdPfc::Cache::schedP->Start();
97 }
98
99 Cache &instance = Cache::CreateInstance(logger, env);
100
101 if (! instance.Config(config_filename, parameters))
102 {
103 err.Say("Config Proxy file cache initialization failed.");
104 return 0;
105 }
106 err.Say("------ Proxy file cache initialization completed.");
107
108 {
109 pthread_t tid;
110
111 for (int wti = 0; wti < instance.RefConfiguration().m_wqueue_threads; ++wti)
112 {
113 XrdSysThread::Run(&tid, ProcessWriteTaskThread, 0, 0, "XrdPfc WriteTasks ");
114 }
115
116 if (instance.RefConfiguration().m_prefetch_max_blocks > 0)
117 {
118 XrdSysThread::Run(&tid, PrefetchThread, 0, 0, "XrdPfc Prefetch ");
119 }
120
121 XrdSysThread::Run(&tid, ResourceMonitorHeartBeatThread, 0, 0, "XrdPfc ResourceMonitorHeartBeat");
122
123 XrdSysThread::Run(&tid, PurgeThread, 0, 0, "XrdPfc Purge");
124 }
125
126 XrdPfcFSctl* pfcFSctl = new XrdPfcFSctl(instance, logger);
127 env->PutPtr("XrdFSCtl_PC*", pfcFSctl);
128
129 return &instance;
130}
void * ProcessWriteTaskThread(void *)
Definition XrdPfc.cc:68
void * ResourceMonitorHeartBeatThread(void *)
Definition XrdPfc.cc:56
void * PrefetchThread(void *)
Definition XrdPfc.cc:74
void * PurgeThread(void *)
Definition XrdPfc.cc:62
void * GetPtr(const char *varname)
Definition XrdOucEnv.cc:263
void PutPtr(const char *varname, void *value)
Definition XrdOucEnv.cc:298
Attaches/creates and detaches/deletes cache-io objects for disk based cache.
Definition XrdPfc.hh:267
bool Config(const char *config_filename, const char *parameters)
Parse configuration file.
const Configuration & RefConfiguration() const
Reference XrdPfc configuration.
Definition XrdPfc.hh:319
static XrdScheduler * schedP
Definition XrdPfc.hh:408
static Cache & CreateInstance(XrdSysLogger *logger, XrdOucEnv *env)
Singleton creation.
Definition XrdPfc.cc:156
static int Run(pthread_t *, void *(*proc)(void *), void *arg, int opts=0, const char *desc=0)
int m_prefetch_max_blocks
maximum number of blocks to prefetch per file
Definition XrdPfc.hh:106

References XrdPfc::Cache::Config(), XrdPfc::Cache::CreateInstance(), XrdOucEnv::GetPtr(), XrdPfc::Configuration::m_prefetch_max_blocks, PrefetchThread(), ProcessWriteTaskThread(), PurgeThread(), XrdOucEnv::PutPtr(), XrdPfc::Cache::RefConfiguration(), ResourceMonitorHeartBeatThread(), XrdSysThread::Run(), XrdSysError::Say(), and XrdPfc::Cache::schedP.

Referenced by XrdPfc::Cache::Config(), and XrdVERSIONINFO().

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Variable Documentation

◆ XrdSysXAttrActive