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NCBI C++ ToolKit: include/db/bdb/bdb_util.hpp Source File

<

FL,

Func>

<

FL,

IT,

Func>

( ;start != finish; ++start) {

<

IT,

Lock>

vector<unsigned> batch(batch_size);

(start != finish) {

(

= 0;

< batch_size && start != finish;

= (unsigned) *start;

batch.push_back(

);

(batch.size() == 0)

(locker) locker->Lock();

(vector<unsigned>, it, batch) {

fld.

((

)

);

(locker) locker->Unlock();

(locker) locker->Unlock();

* tmp_str_buffer = 0);

& section_name);

Berkeley BDB file cursor.

Wrapper around Berkeley DB transaction structure.

BDB Data Field Buffer manager class.

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

Base class for constructing BDB fields.

Berkeley DB file cursor class.

This implemetation uses the Boyer-Moore alg.

#define ITERATE(Type, Var, Cont)

ITERATE macro to sequence through container elements.

EBDB_ErrCode Delete(EIgnoreError on_error=eThrowOnError)

Delete record corresponding to the current key value.

void SetCondition(ECondition cond_from, ECondition cond_to=eNotSet)

Set search condition(type of interval)

virtual void SetTransaction(ITransaction *trans)

Establish transaction association.

CBDB_Env * GetEnv()

Get pointer on file environment Return NULL if no environment has been set.

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.

EBDB_ErrCode Fetch(EFetchDirection fdir=eDefault)

Fetch record.

int BDB_get_rowid(const CBDB_File &dbf)

Return record id (integer key)

void BDB_batch_delete_recs(CBDB_File &dbf, IT start, IT finish, unsigned batch_size, Lock *locker)

Delete file records based on sequence of ids.

CBDB_File::TUnifiedFieldIndex BDB_find_field(const CBDB_File &dbf, const CBoyerMooreMatcher &matcher, string *tmp_str_buffer=0)

Find index of field containing the specified value Search condition is specified by CBoyerMooreMatche...

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

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

void BDB_iterate_file(FL &dbf, Func &func)

Template algorithm function to iterate the BDB File.

virtual void Commit()

Commit transaction.

@ eTransASync

Non-durable asyncronous transaction.

#define END_NCBI_SCOPE

End previously defined NCBI scope.

#define BEGIN_NCBI_SCOPE

Define ncbi namespace.

Process information in the NCBI Registry, including working with configuration files.

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