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NCBI C++ ToolKit: src/connect/ncbi_pipe_connector.cpp Source File

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vector<string>& args,

xxx->pipe = pipe ? pipe :

;

xxx->pipe_size = pipe_size;

ccc->handle = xxx.release();

ccc.release();

unique_ptr< T, TDeleter > make_c_unique(T *p, TDeleter d)

Eliminates the necessity for specifying types of both allocated resource and deallocating C function.

@ eTakeOwnership

An object can take ownership of another.

CONNECTOR PIPE_CreateConnector(const string &cmd, const vector< string > &args, CPipe::TCreateFlags flags, CPipe *pipe, EOwnership own_pipe, size_t pipe_size)

Create CPipe-based CONNECTOR.

#define CONN_SET_METHOD(meta, method, function, connector)

const STimeout * default_timeout

default timeout pointer

void * handle

data handle of the connector

SMetaConnector * meta

back link to original meta

EIO_Status Write(const void *data, size_t count, size_t *written=0)

Write data to pipe (data always goes to the child's eStdIn handle).

EIO_Status Open(const string &cmd, const vector< string > &args, TCreateFlags create_flags=0, const string &current_dir=kEmptyStr, const char *const envp[]=0, size_t pipe_size=0)

Open pipe.

TChildPollMask Poll(TChildPollMask mask, const STimeout *timeout=0)

Wait for I/O event(s).

unsigned int TChildPollMask

bitwise OR of "EChildIOHandle"

EIO_Status SetTimeout(EIO_Event event, const STimeout *timeout)

Specify timeout for the pipe I/O.

EIO_Status Read(void *buf, size_t count, size_t *read=0, EChildIOHandle from_handle=eDefault)

Read data from the pipe's default read handle.

unsigned int TCreateFlags

bitwise OR of "ECreateFlag"

EIO_Status Close(int *exitcode=0)

Close pipe.

EIO_Status Status(EIO_Event direction) const

Return a status of the last I/O operation.

#define END_NCBI_SCOPE

End previously defined NCBI scope.

#define BEGIN_NCBI_SCOPE

Define ncbi namespace.

static string & ReplaceInPlace(string &src, const string &search, const string &replace, SIZE_TYPE start_pos=0, SIZE_TYPE max_replace=0, SIZE_TYPE *num_replace=0)

Replace occurrences of a substring within a string.

enum ENcbiOwnership EOwnership

Ownership relations between objects.

EIO_Event

I/O event (or direction).

@ eIO_Success

everything is fine, no error occurred

@ eIO_Unknown

unknown I/O error (likely fatal but can retry)

@ eIO_Close

also serves as an error indicator in SOCK_Poll

if(yy_accept[yy_current_state])

const struct ncbi::grid::netcache::search::fields::SIZE size

static EIO_Status s_VT_Write(CONNECTOR connector, const void *buf, size_t size, size_t *n_written, const STimeout *timeout)

static EIO_Status s_VT_Read(CONNECTOR connector, void *buf, size_t size, size_t *n_read, const STimeout *timeout)

static EIO_Status s_VT_Close(CONNECTOR connector, const STimeout *timeout)

static const char * s_VT_GetType(CONNECTOR)

static void s_Setup(CONNECTOR connector)

static EIO_Status s_VT_Status(CONNECTOR connector, EIO_Event dir)

static EIO_Status s_VT_Wait(CONNECTOR connector, EIO_Event event, const STimeout *timeout)

static EIO_Status s_VT_Open(CONNECTOR connector, const STimeout *)

static void s_Destroy(CONNECTOR connector)

static char * s_VT_Descr(CONNECTOR connector)

Implement CONNECTOR for a pipe interprocess communication (based on the NCBI CPipe).

CPipe::TCreateFlags flags

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