Bitcoin Core  0.19.99
P2P Digital Currency
Classes | Namespaces | Enumerations | Functions | Variables
system.h File Reference
#include <attributes.h>
#include <compat.h>
#include <compat/assumptions.h>
#include <fs.h>
#include <logging.h>
#include <sync.h>
#include <tinyformat.h>
#include <util/memory.h>
#include <util/settings.h>
#include <util/threadnames.h>
#include <util/time.h>
#include <exception>
#include <map>
#include <set>
#include <stdint.h>
#include <string>
#include <utility>
#include <vector>
#include <boost/thread/condition_variable.hpp>
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Classes

struct  SectionInfo
 
class  ArgsManager
 
struct  ArgsManager::Arg
 

Namespaces

 util
 

Enumerations

enum  OptionsCategory {
  OptionsCategory::OPTIONS, OptionsCategory::CONNECTION, OptionsCategory::WALLET, OptionsCategory::WALLET_DEBUG_TEST,
  OptionsCategory::ZMQ, OptionsCategory::DEBUG_TEST, OptionsCategory::CHAINPARAMS, OptionsCategory::NODE_RELAY,
  OptionsCategory::BLOCK_CREATION, OptionsCategory::RPC, OptionsCategory::GUI, OptionsCategory::COMMANDS,
  OptionsCategory::REGISTER_COMMANDS, OptionsCategory::HIDDEN
}
 

Functions

int64_t GetStartupTime ()
 Server/client environment: argument handling, config file parsing, thread wrappers, startup time. More...
 
void SetupEnvironment ()
 
bool SetupNetworking ()
 
template<typename... Args>
bool error (const char *fmt, const Args &... args)
 
void PrintExceptionContinue (const std::exception *pex, const char *pszThread)
 
bool FileCommit (FILE *file)
 
bool TruncateFile (FILE *file, unsigned int length)
 
int RaiseFileDescriptorLimit (int nMinFD)
 this function tries to raise the file descriptor limit to the requested number. More...
 
void AllocateFileRange (FILE *file, unsigned int offset, unsigned int length)
 this function tries to make a particular range of a file allocated (corresponding to disk space) it is advisory, and the range specified in the arguments will never contain live data More...
 
bool RenameOver (fs::path src, fs::path dest)
 
bool LockDirectory (const fs::path &directory, const std::string lockfile_name, bool probe_only=false)
 
void UnlockDirectory (const fs::path &directory, const std::string &lockfile_name)
 
bool DirIsWritable (const fs::path &directory)
 
bool CheckDiskSpace (const fs::path &dir, uint64_t additional_bytes=0)
 
void ReleaseDirectoryLocks ()
 Release all directory locks. More...
 
bool TryCreateDirectories (const fs::path &p)
 Ignores exceptions thrown by Boost's create_directories if the requested directory exists. More...
 
fs::path GetDefaultDataDir ()
 
const fs::path & GetBlocksDir ()
 
const fs::path & GetDataDir (bool fNetSpecific=true)
 
bool CheckDataDirOption ()
 
void ClearDatadirCache ()
 Tests only. More...
 
fs::path GetConfigFile (const std::string &confPath)
 
fs::path AbsPathForConfigVal (const fs::path &path, bool net_specific=true)
 Most paths passed as configuration arguments are treated as relative to the datadir if they are not absolute. More...
 
bool IsSwitchChar (char c)
 
bool HelpRequested (const ArgsManager &args)
 
void SetupHelpOptions (ArgsManager &args)
 Add help options to the args manager. More...
 
std::string HelpMessageGroup (const std::string &message)
 Format a string to be used as group of options in help messages. More...
 
std::string HelpMessageOpt (const std::string &option, const std::string &message)
 Format a string to be used as option description in help messages. More...
 
int GetNumCores ()
 Return the number of cores available on the current system. More...
 
template<typename Callable >
void TraceThread (const char *name, Callable func)
 
std::string CopyrightHolders (const std::string &strPrefix)
 
void ScheduleBatchPriority ()
 On platforms that support it, tell the kernel the calling thread is CPU-intensive and non-interactive. More...
 
template<typename Tdst , typename Tsrc >
void util::insert (Tdst &dst, const Tsrc &src)
 Simplification of std insertion. More...
 
template<typename TsetT , typename Tsrc >
void util::insert (std::set< TsetT > &dst, const Tsrc &src)
 

Variables

const char *const BITCOIN_CONF_FILENAME
 
ArgsManager gArgs
 

Enumeration Type Documentation

◆ OptionsCategory

enum OptionsCategory
strong
Enumerator
OPTIONS 
CONNECTION 
WALLET 
WALLET_DEBUG_TEST 
ZMQ 
DEBUG_TEST 
CHAINPARAMS 
NODE_RELAY 
BLOCK_CREATION 
RPC 
GUI 
COMMANDS 
REGISTER_COMMANDS 
HIDDEN 

Definition at line 106 of file system.h.

Function Documentation

◆ AbsPathForConfigVal()

fs::path AbsPathForConfigVal ( const fs::path &  path,
bool  net_specific = true 
)

Most paths passed as configuration arguments are treated as relative to the datadir if they are not absolute.

Parameters
pathThe path to be conditionally prefixed with datadir.
net_specificForwarded to GetDataDir().
Returns
The normalized path.

Definition at line 1121 of file system.cpp.

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◆ AllocateFileRange()

void AllocateFileRange ( FILE *  file,
unsigned int  offset,
unsigned int  length 
)

this function tries to make a particular range of a file allocated (corresponding to disk space) it is advisory, and the range specified in the arguments will never contain live data

Definition at line 975 of file system.cpp.

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◆ CheckDataDirOption()

bool CheckDataDirOption ( )

Definition at line 662 of file system.cpp.

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◆ CheckDiskSpace()

bool CheckDiskSpace ( const fs::path &  dir,
uint64_t  additional_bytes = 0 
)

Definition at line 133 of file system.cpp.

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◆ ClearDatadirCache()

void ClearDatadirCache ( )

Tests only.

Definition at line 668 of file system.cpp.

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◆ CopyrightHolders()

std::string CopyrightHolders ( const std::string &  strPrefix)

Definition at line 1103 of file system.cpp.

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◆ DirIsWritable()

bool DirIsWritable ( const fs::path &  directory)

Definition at line 120 of file system.cpp.

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◆ error()

template<typename... Args>
bool error ( const char *  fmt,
const Args &...  args 
)

Definition at line 48 of file system.h.

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◆ FileCommit()

bool FileCommit ( FILE *  file)

Definition at line 907 of file system.cpp.

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◆ GetBlocksDir()

const fs::path& GetBlocksDir ( )

Definition at line 607 of file system.cpp.

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◆ GetConfigFile()

fs::path GetConfigFile ( const std::string &  confPath)

Definition at line 677 of file system.cpp.

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◆ GetDataDir()

const fs::path& GetDataDir ( bool  fNetSpecific = true)

Definition at line 632 of file system.cpp.

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◆ GetDefaultDataDir()

fs::path GetDefaultDataDir ( )

Definition at line 576 of file system.cpp.

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◆ GetNumCores()

int GetNumCores ( )

Return the number of cores available on the current system.

Note
This does count virtual cores, such as those provided by HyperThreading.

Definition at line 1098 of file system.cpp.

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◆ GetStartupTime()

int64_t GetStartupTime ( )

Server/client environment: argument handling, config file parsing, thread wrappers, startup time.

Definition at line 1116 of file system.cpp.

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◆ HelpMessageGroup()

std::string HelpMessageGroup ( const std::string &  message)

Format a string to be used as group of options in help messages.

Parameters
messageGroup name (e.g. "RPC server options:")
Returns
the formatted string

Definition at line 542 of file system.cpp.

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◆ HelpMessageOpt()

std::string HelpMessageOpt ( const std::string &  option,
const std::string &  message 
)

Format a string to be used as option description in help messages.

Parameters
optionOption message (e.g. "-rpcuser=<user>")
messageOption description (e.g. "Username for JSON-RPC connections")
Returns
the formatted string

Definition at line 546 of file system.cpp.

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◆ HelpRequested()

bool HelpRequested ( const ArgsManager args)
Returns
true if help has been requested via a command-line arg

Definition at line 527 of file system.cpp.

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◆ IsSwitchChar()

bool IsSwitchChar ( char  c)
inline

Definition at line 97 of file system.h.

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◆ LockDirectory()

bool LockDirectory ( const fs::path &  directory,
const std::string  lockfile_name,
bool  probe_only = false 
)

Definition at line 84 of file system.cpp.

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◆ PrintExceptionContinue()

void PrintExceptionContinue ( const std::exception *  pex,
const char *  pszThread 
)

Definition at line 569 of file system.cpp.

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◆ RaiseFileDescriptorLimit()

int RaiseFileDescriptorLimit ( int  nMinFD)

this function tries to raise the file descriptor limit to the requested number.

It returns the actual file descriptor limit (which may be more or less than nMinFD)

Definition at line 952 of file system.cpp.

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◆ ReleaseDirectoryLocks()

void ReleaseDirectoryLocks ( )

Release all directory locks.

This is used for unit testing only, at runtime the global destructor will take care of the locks.

Definition at line 114 of file system.cpp.

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◆ RenameOver()

bool RenameOver ( fs::path  src,
fs::path  dest 
)

Definition at line 877 of file system.cpp.

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◆ ScheduleBatchPriority()

void ScheduleBatchPriority ( )

On platforms that support it, tell the kernel the calling thread is CPU-intensive and non-interactive.

See SCHED_BATCH in sched(7) for details.

Definition at line 1129 of file system.cpp.

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◆ SetupEnvironment()

void SetupEnvironment ( )

Definition at line 1049 of file system.cpp.

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◆ SetupHelpOptions()

void SetupHelpOptions ( ArgsManager args)

Add help options to the args manager.

Definition at line 532 of file system.cpp.

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◆ SetupNetworking()

bool SetupNetworking ( )

Definition at line 1086 of file system.cpp.

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◆ TraceThread()

template<typename Callable >
void TraceThread ( const char *  name,
Callable  func 
)

. and a wrapper that just calls func once

Definition at line 340 of file system.h.

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◆ TruncateFile()

bool TruncateFile ( FILE *  file,
unsigned int  length 
)

Definition at line 940 of file system.cpp.

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◆ TryCreateDirectories()

bool TryCreateDirectories ( const fs::path &  p)

Ignores exceptions thrown by Boost's create_directories if the requested directory exists.

Specifically handles case where path p exists, but it wasn't possible for the user to write to the parent directory.

Definition at line 893 of file system.cpp.

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◆ UnlockDirectory()

void UnlockDirectory ( const fs::path &  directory,
const std::string &  lockfile_name 
)

Definition at line 108 of file system.cpp.

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Variable Documentation

◆ BITCOIN_CONF_FILENAME

const char* const BITCOIN_CONF_FILENAME

Definition at line 71 of file system.cpp.

◆ gArgs

ArgsManager gArgs

Definition at line 73 of file system.cpp.