findMinHoleSize Class Reference

Inheritance diagram for findMinHoleSize:

Collaboration diagram for findMinHoleSize:

Public Member Functions
	findMinHoleSize ()
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 537 of file fileOpsTests.cpp.

Constructor & Destructor Documentation

findMinHoleSize()

findMinHoleSize::findMinHoleSize ( )

inline

Definition at line 539 of file fileOpsTests.cpp.

                     : baseTest("findMinHoleSize",
                                    "find minimum hole size", {
        {"file", "path to file"
        }
    }) {};

Member Function Documentation

execute()

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

inlineoverridevirtual

Implements baseTest.

Definition at line 544 of file fileOpsTests.cpp.

                                                                        {
        auto file = remainingOptions.at(0);
        auto fd = throwcall::badval(open(file.c_str(), O_CREAT | O_WRONLY, 0744), -1, "open ", file);
        struct stat statbuf;
        throwcall::good0(fstat(fd, &statbuf), "stat ", file);
        auto testSize = statbuf.st_blksize;
        while (testSize > 0) {
            throwcall::good0(close(fd), "close ", file);
            fd = throwcall::badval(open(file.c_str(), O_WRONLY | O_TRUNC, 0744), -1, "open ", file);
            throwcall::badval(lseek(fd, testSize, SEEK_SET), -1, "seek ", testSize, " in ", file);
            ensuredWrite(fd, content);
            throwcall::good0(close(fd), "close ", file);
            createdFiles.emplace(file);
            fd = throwcall::badval(open(file.c_str(), O_RDONLY), -1, "open ", file);
            auto dataPos = throwcall::badval(lseek(fd, 0, SEEK_DATA), -1, "seek data in ", file);
            if (dataPos != testSize) {
                break;
            }
            std::cout << testSize << " bytes hole size worked\n";
            testSize /= 2;
        }
    };

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

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

• src/fileOpsTests.cpp (v0.19-24-g0617ca1 with changes)