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XrdCl::FileSystemUtils Class Reference

#include <XrdClFileSystemUtils.hh>

Collaboration diagram for XrdCl::FileSystemUtils:

Classes

class  SpaceInfo
 Container for space information. More...
struct  SpaceInfoImpl

Static Public Member Functions

static XRootDStatus GetSpaceInfo (SpaceInfo *&result, FileSystem *fs, const std::string &path)
 Recursively get space information for given path.

Detailed Description

A container for file system utility functions that do not belong in FileSystem

Definition at line 42 of file XrdClFileSystemUtils.hh.

Member Function Documentation

◆ GetSpaceInfo()

XRootDStatus XrdCl::FileSystemUtils::GetSpaceInfo ( SpaceInfo *& result,
FileSystem * fs,
const std::string & path )
static

Recursively get space information for given path.

Definition at line 98 of file XrdClFileSystemUtils.cc.

101 {
102 //--------------------------------------------------------------------------
103 // Locate all the disk servers containing the space
104 //--------------------------------------------------------------------------
105 LocationInfo *locationInfo = 0;
106 XRootDStatus st = fs->DeepLocate( path, OpenFlags::Compress, locationInfo );
107 if( !st.IsOK() )
108 return st;
109
110 std::unique_ptr<LocationInfo> locationInfoPtr( locationInfo );
111
112 bool partial = st.code == suPartial ? true : false;
113
114 std::vector<std::pair<std::string, uint64_t> > resp;
115 resp.push_back( std::make_pair( std::string("oss.space"), (uint64_t)0 ) );
116 resp.push_back( std::make_pair( std::string("oss.free"), (uint64_t)0 ) );
117 resp.push_back( std::make_pair( std::string("oss.used"), (uint64_t)0 ) );
118 resp.push_back( std::make_pair( std::string("oss.maxf"), (uint64_t)0 ) );
119
120 //--------------------------------------------------------------------------
121 // Loop over the file servers and get the space info from each of them
122 //--------------------------------------------------------------------------
124 Buffer pathArg; pathArg.FromString( path );
125 for( it = locationInfo->Begin(); it != locationInfo->End(); ++it )
126 {
127 //------------------------------------------------------------------------
128 // Query the server
129 //------------------------------------------------------------------------
130 Buffer *spaceInfo = 0;
131 FileSystem fs1( it->GetAddress() );
132 st = fs1.Query( QueryCode::Space, pathArg, spaceInfo );
133 if( !st.IsOK() )
134 return st;
135
136 std::unique_ptr<Buffer> spaceInfoPtr( spaceInfo );
137
138 //------------------------------------------------------------------------
139 // Parse the cgi
140 //------------------------------------------------------------------------
141 std::string fakeUrl = "root://fake/fake?" + spaceInfo->ToString();
142 URL url( fakeUrl );
143
144 if( !url.IsValid() )
145 return XRootDStatus( stError, errInvalidResponse );
146
147 URL::ParamsMap params = url.GetParams();
148
149 //------------------------------------------------------------------------
150 // Convert and add up the params
151 //------------------------------------------------------------------------
152 st = XRootDStatus( stError, errInvalidResponse );
153 for( size_t i = 0; i < resp.size(); ++i )
154 {
155 URL::ParamsMap::iterator paramIt = params.find( resp[i].first );
156 if( paramIt == params.end() ) return st;
157 char *res;
158 uint64_t num = ::strtoll( paramIt->second.c_str(), &res, 0 );
159 if( *res != 0 ) return st;
160 if( resp[i].first == "oss.maxf" )
161 { if( num > resp[i].second ) resp[i].second = num; }
162 else
163 resp[i].second += num;
164 }
165 }
166
167 result = new SpaceInfo( resp[0].second, resp[1].second, resp[2].second,
168 resp[3].second );
169
170 st = XRootDStatus(); if( partial ) st.code = suPartial;
171 return st;
172 }
Container for space information.
LocationList::iterator Iterator
Iterator over locations.
std::map< std::string, std::string > ParamsMap
Definition XrdClURL.hh:33
const uint16_t suPartial
const uint16_t stError
An error occurred that could potentially be retried.
const uint16_t errInvalidResponse
@ Space
Query logical space stats.

References XrdCl::LocationInfo::Begin(), XrdCl::Status::code, XrdCl::OpenFlags::Compress, XrdCl::FileSystem::DeepLocate(), XrdCl::LocationInfo::End(), XrdCl::errInvalidResponse, XrdCl::Buffer::FromString(), XrdCl::URL::GetParams(), XrdCl::Status::IsOK(), XrdCl::URL::IsValid(), XrdCl::FileSystem::Query(), XrdCl::QueryCode::Space, XrdCl::stError, XrdCl::suPartial, and XrdCl::Buffer::ToString().

Referenced by DoSpaceInfo().

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