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NCBI C++ ToolKit: src/db/bdb/bdb_util.cpp Source File

fcount = buffer_man.

();

(

= 0;

< fcount; ++

) {

pos = matcher.

(str_buf, 0, str_buf_len);

str_buf = tmp_str->c_str();

str_buf_len = tmp_str->length();

<

T>

& param_value,

<< setw(20) << param_name

<< param_value << units);

& param_value)

<< setw(20) << param_name

<< (param_value ?

:

));

& section_name)

unique_ptr<CBDB_Env>

;

path +

);

(!err_path.empty()) {

dir, base, ext;

cache_size_str;

log_mem_size_str;

(log_max < 1024 * 1024) {

log_max = 1024 * 1024;

log_autoremove =

max_lock_objects =

mp_maxwrite_sleep =

checkpoint_interval =

enable_checkpoint =

memp_trickle_percent =

->OpenErrFile(err_path);

->SetCacheSize(cache_size, cache_num);

->SetLogInMemory(

);

(

, log_mem_size);

->SetLogBSize((

)log_mem_size);

(!log_path.empty() && log_path != path) {

->SetLogDir(log_path);

->SetLogFileMax((

)log_max);

->SetLogAutoRemove(log_autoremove);

->SetDirectDB(direct_db);

->SetDirectLog(direct_log);

->SetLockTimeout(lock_timeout);

->SetTasSpins(tas_spins);

->SetMaxLocks(max_locks);

(max_lock_objects) {

->SetMaxLockObjects(max_lock_objects);

(

, mp_maxwrite_sleep);

->SetMpMaxWrite(mp_maxwrite, mp_maxwrite_sleep);

->SetCheckPointKB(checkpoint_kb);

(checkpoint_min) {

->SetCheckPointMin(checkpoint_min);

->EnableCheckPoint(enable_checkpoint);

->OpenWithTrans(path,

->OpenWithLocks(path);

->OpenConcurrentDB(path);

(

->IsTransactional()) {

(checkpoint_interval) {

(

, checkpoint_interval);

(

, memp_trickle_percent);

->RunCheckpointThread(checkpoint_interval, memp_trickle_percent);

.release();

Wrapper around Berkeley DB environment structure.

static const char * kEnvParam_direct_db

static const char * kEnvParam_mp_maxwrite_sleep

static const char * kEnvParam_direct_log

static const char * kEnvParam_log_file_max

static const char * kEnvParam_max_lock_objects

static const char * BDB_GetStringFieldBuf(const CBDB_Field &fld)

Check if field is a variant of string, returns pointer on the internal buffer (or NULL).

static int BDB_find_field(const CBDB_BufferManager &buffer_man, const CBoyerMooreMatcher &matcher, string *tmp_str)

Search for value in the field buffer.

static const char * kEnvParam_path

static const char * kEnvParam_log_autoremove

static const char * kEnvParam_reinit

static const char * kEnvParam_TAS_spins

static const char * kEnvParam_type

static const char * kEnvParam_errfile

static const char * kEnvParam_checkpoint_kb

static const char * kEnvParam_transaction_log_path

static const char * kEnvParam_write_sync

static const char * kEnvParam_lock_timeout

static const char * kEnvParam_memp_trickle_percent

static const char * kEnvParam_cache_size

static const char * kEnvParam_mp_maxwrite

static const char * kEnvParam_mem_size

static const char * kEnvParam_cache_num

static const char * kEnvParam_max_locks

static const char * kEnvParam_enable_checkpoint

static const char * kEnvParam_log_mem_size

static const char * kEnvParam_checkpoint_min

static const char * kEnvParam_checkpoint_interval

void s_LogEnvParam(const string &param_name, const T &param_value, const string &units=kEmptyStr)

Log a parameter in a human-readable format.

BDB Data Field Buffer manager class.

BDB environment object a collection including support for some or all of caching, locking,...

BDB errno exception class.

Length prefised string field type.

String field type designed to work with C-strings (ASCIIZ)

Base class for constructing BDB fields.

This implemetation uses the Boyer-Moore alg.

CBDB_File::TUnifiedFieldIndex BDB_GetUFieldIdx(int fidx, bool key)

Make field index in CBDB_File format.

int TUnifiedFieldIndex

CBDB_File keeps data in two buffers (key buffer and data buffer).

const CBDB_BufferManager * GetKeyBuffer() const

Get Buffer manager for key section of the file.

const CBDB_BufferManager * GetDataBuffer() const

Get Buffer manager for data section of the file.

bool IsNull() const

Return TRUE if field is NULL.

unsigned int FieldCount() const

Return number of fields attached using function Bind.

virtual size_t GetDataLength(const void *buf) const =0

Return current effective size of the buffer.

const CBDB_Field & GetField(unsigned int idx) const

virtual void ToString(string &str) const =0

const void * GetBuffer() const

Get pointer to the data. NULL if not yet attached.

int BDB_get_rowid(const CBDB_File &dbf)

Return record id (integer key)

CBDB_Env * BDB_CreateEnv(const CNcbiRegistry &reg, const string &section_name)

Create and configure BDB environment using CNcbiRegistry as a parameter container.

void BDB_RecoverEnv(const string &path, bool fatal_recover)

Run Berkeley DB recovery in private environment.

EEnvType

Environment types.

bool IsRecovery() const

If it is DB_RUNRECOVERY error.

@ eTransASync

Non-durable asyncronous transaction.

@ eTransSync

Syncronous transaction.

@ eRunRecovery

Run DB recovery first.

@ eThreaded

corresponds to DB_THREAD

@ eDeadLock_Default

Default deadlock detector.

#define LOG_POST_X(err_subcode, message)

void Info(CExceptionArgs_Base &args)

static string MakePath(const string &dir=kEmptyStr, const string &base=kEmptyStr, const string &ext=kEmptyStr)

Assemble a path from basic components.

static string AddTrailingPathSeparator(const string &path)

Add trailing path separator, if needed.

virtual bool Exists(void) const

Check if directory "dirname" exists.

bool Create(TCreateFlags flags=fCreate_Default) const

Create the directory using "dirname" passed in the constructor.

virtual bool Remove(TRemoveFlags flags=eRecursive) const

Delete existing directory.

static void SplitPath(const string &path, string *dir=0, string *base=0, string *ext=0)

Split a path string into its basic components.

uint64_t Uint8

8-byte (64-bit) unsigned integer

virtual bool GetBool(const string &section, const string &name, bool default_value, TFlags flags=0, EErrAction err_action=eThrow) const

Get boolean value of specified parameter name.

virtual int GetInt(const string &section, const string &name, int default_value, TFlags flags=0, EErrAction err_action=eThrow) const

Get integer value of specified parameter name.

virtual bool HasEntry(const string &section, const string &name=kEmptyStr, TFlags flags=0) const

virtual string GetString(const string &section, const string &name, const string &default_value, TFlags flags=0) const

Get the parameter string value.

@ eReturn

Return default value.

#define END_NCBI_SCOPE

End previously defined NCBI scope.

#define BEGIN_NCBI_SCOPE

Define ncbi namespace.

size_t Search(const string &text, size_t pos=0) const

Search for the pattern over text starting at position pos.

static Uint8 StringToUInt8_DataSize(const CTempString str, TStringToNumFlags flags=0)

Convert string that can contain "software" qualifiers to Uint8.

static bool EqualNocase(const CTempString s1, SIZE_TYPE pos, SIZE_TYPE n, const char *s2)

Case-insensitive equality of a substring with another string.

static string & ToLower(string &str)

Convert string to lower case – string& version.

@ fConvErr_NoThrow

Do not throw an exception on error.

Definition of all error codes used in bdb library (bdb.lib and ncbi_xcache_bdb.lib).

Defines classes: CDirEntry, CFile, CDir, CSymLink, CMemoryFile, CFileUtil, CFileLock,...

static int match(PCRE2_SPTR start_eptr, PCRE2_SPTR start_ecode, uint16_t top_bracket, PCRE2_SIZE frame_size, pcre2_match_data *match_data, match_block *mb)

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