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sparseWrite2 Class Reference
Inheritance diagram for sparseWrite2:
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Collaboration diagram for sparseWrite2:
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Public Member Functions

 sparseWrite2 ()
 
void execute (const std::vector< std::string > &remainingOptions) override
 
- Public Member Functions inherited from baseTest
 baseTest (const std::string &aName, const std::string &aDescription, const decltype(parameters)&aParameters, const decltype(options)&aOptions={})
 
void ensuredWrite (int fd, const std::string &data)
 
void ensuredRead (int fd, std::string &data)
 
void Execute (const std::vector< std::string > &remainingOptions)
 

Additional Inherited Members

- Static Public Member Functions inherited from baseTest
static std::map< std::string, baseTest * > & getList ()
 
static void setUpOptions ()
 
static const std::string & getDescriptions ()
 
- Protected Attributes inherited from baseTest
std::string name
 
std::string description
 
std::list< std::pair< std::string, std::string > > parameters
 
std::list< std::pair< options::base &, std::string > > options
 
std::set< std::string > createdFiles
 
- Static Protected Attributes inherited from baseTest
static options::single< unsigned int > repeat
 
static options::single< bool > cleanup
 
static options::single< bool > urandom
 
static options::single< bool > einsZweiDrei
 
static options::single< std::string > contentFile
 
static options::single< size_t > size
 
static options::single< unsigned int > blocks
 
static options::single< std::string > content
 
static options::single< bool > truncate
 
static options::single< std::chrono::duration< double > > time
 
static options::single< unsigned long > syncus
 
static options::single< unsigned long > skewus
 
static std::string descriptions = "\npossible actions and their parameters:\n"
 

Detailed Description

Definition at line 511 of file fileOpsTests.cpp.

Constructor & Destructor Documentation

◆ sparseWrite2()

sparseWrite2::sparseWrite2 ( )
inline

Definition at line 513 of file fileOpsTests.cpp.

513  : baseTest("sparseWrite2",
514  "create a sparse file, hole (data hole){blocks}", {
515  {"file", "path to file"
516  }
517  }) {};

Member Function Documentation

◆ execute()

void sparseWrite2::execute ( const std::vector< std::string > &  remainingOptions)
inlineoverridevirtual

Implements baseTest.

Definition at line 518 of file fileOpsTests.cpp.

518  {
519  auto file = remainingOptions.at(0);
520  auto fd = throwcall::badval(open(file.c_str(), O_CREAT | O_WRONLY, 0744), -1, "open ", file);
521  throwcall::badval(lseek(fd, content.size(), SEEK_CUR), -1,
522  "lseek in ", file, " for ", content.size(), " bytes");
523  for (unsigned i = 0; i < blocks; i++) {
524  ensuredWrite(fd, content);
525  throwcall::good0(ftruncate(fd, lseek(fd, 0, SEEK_CUR) + content.size()), "truncate ", file);
526  throwcall::badval(lseek(fd, content.size(), SEEK_CUR), -1,
527  "lseek in ", file, " for ", content.size(), " bytes");
528  }
529  throwcall::good0(close(fd), "close ", file);
530  createdFiles.emplace(file);
531  };

References throwcall::badval(), baseTest::blocks, baseTest::content, baseTest::createdFiles, baseTest::ensuredWrite(), and throwcall::good0().

Here is the call graph for this function:

The documentation for this class was generated from the following file:
baseTest::content
static options::single< std::string > content
Definition: fileOpsTests.cpp:51
throwcall::badval
T badval(T call, t badvalue, const Args &... args)
template function to wrap system calls that return a special bad value on failure
Definition: throwcall.h:54
baseTest::createdFiles
std::set< std::string > createdFiles
Definition: fileOpsTests.cpp:42
baseTest::blocks
static options::single< unsigned int > blocks
Definition: fileOpsTests.cpp:50
baseTest::baseTest
baseTest(const std::string &aName, const std::string &aDescription, const decltype(parameters)&aParameters, const decltype(options)&aOptions={})
Definition: fileOpsTests.cpp:68
throwcall::good0
void good0(T call, const Args &... args)
template function to wrap system calls that return 0 on success
Definition: throwcall.h:40
baseTest::ensuredWrite
void ensuredWrite(int fd, const std::string &data)
Definition: fileOpsTests.cpp:106