eric7.DebugClients.Python.AsyncFile

Module implementing an asynchronous file like socket interface for the debugger.

Global Attributes

None

Classes

AsyncFile Class wrapping a socket object with a file interface.

Functions

AsyncPendingWrite Module function to check for data to be written.


AsyncFile

Class wrapping a socket object with a file interface.

Derived from

None

Class Attributes

BUFSIZE
CMD_BUFSIZE
MAX_TRIES

Class Methods

None

Methods

AsyncFile Constructor
__checkMode Private method to check the mode.
close Public method to close the file.
fileno Public method returning the file number.
flush Public method to write all pending entries.
isatty Public method to indicate whether a tty interface is supported.
pendingWrite Public method that returns the number of strings waiting to be written.
read Public method to read bytes from this file.
readCommand Public method to read a command string prefixed by a command header.
read_p Public method to read bytes from this file.
readable Public method to check, if the stream is readable.
readline Public method to read one line from this file.
readline_p Public method to read a line from this file.
readlines Public method to read all lines from this file.
seek Public method to move the filepointer.
seekable Public method to check, if the stream is seekable.
tell Public method to get the filepointer position.
truncate Public method to truncate the file.
writable Public method to check, if a stream is writable.
write Public method to write a string to the file.
write_p Public method to write a json-rpc 2.0 coded string to the file.
writelines Public method to write a list of strings to the file.

Static Methods

None

AsyncFile (Constructor)

AsyncFile(sock, mode, name)

Constructor

sock (socket)
the socket object being wrapped
mode (str)
mode of this file
name (str)
name of this file

AsyncFile.__checkMode

__checkMode(mode)

Private method to check the mode.

This method checks, if an operation is permitted according to the mode of the file. If it is not, an OSError is raised.

mode (string)
the mode to be checked
Raises OSError:
raised to indicate a bad file descriptor

AsyncFile.close

close(closeit=False)

Public method to close the file.

closeit (bool)
flag to indicate a close ordered by the debugger code

AsyncFile.fileno

fileno()

Public method returning the file number.

Return:
file number
Return Type:
int

AsyncFile.flush

flush()

Public method to write all pending entries.

AsyncFile.isatty

isatty()

Public method to indicate whether a tty interface is supported.

Return:
always false
Return Type:
bool

AsyncFile.pendingWrite

pendingWrite()

Public method that returns the number of strings waiting to be written.

Return:
the number of strings to be written
Return Type:
int

AsyncFile.read

read(size=-1)

Public method to read bytes from this file.

size (int)
maximum number of bytes to be read
Return:
the bytes read
Return Type:
str

AsyncFile.readCommand

readCommand()

Public method to read a command string prefixed by a command header.

Return:
command string
Return Type:
str

AsyncFile.read_p

read_p(size=-1)

Public method to read bytes from this file.

size (int)
maximum number of bytes to be read
Return:
the bytes read
Return Type:
str

AsyncFile.readable

readable()

Public method to check, if the stream is readable.

Return:
flag indicating a readable stream
Return Type:
bool

AsyncFile.readline

readline(sizehint=-1)

Public method to read one line from this file.

sizehint (int)
hint of the numbers of bytes to be read
Return:
one line read
Return Type:
str

AsyncFile.readline_p

readline_p(size=-1)

Public method to read a line from this file.

Note: This method will not block and may return only a part of a line if that is all that is available.

size (int)
maximum number of bytes to be read
Return:
one line of text up to size bytes
Return Type:
str

AsyncFile.readlines

readlines(sizehint=-1)

Public method to read all lines from this file.

sizehint (int)
hint of the numbers of bytes to be read
Return:
list of lines read
Return Type:
list of str

AsyncFile.seek

seek(offset, whence=0)

Public method to move the filepointer.

offset (int)
offset to move the file pointer to (unused)
whence (int)
position the offset relates to (unused)
Raises OSError:
This method is not supported and always raises an OSError.

AsyncFile.seekable

seekable()

Public method to check, if the stream is seekable.

Return:
flag indicating a seekable stream
Return Type:
bool

AsyncFile.tell

tell()

Public method to get the filepointer position.

Raises OSError:
This method is not supported and always raises an OSError.

AsyncFile.truncate

truncate(size=-1)

Public method to truncate the file.

size (int)
size to truncate to (unused)
Raises OSError:
This method is not supported and always raises an OSError.

AsyncFile.writable

writable()

Public method to check, if a stream is writable.

Return:
flag indicating a writable stream
Return Type:
bool

AsyncFile.write

write(s)

Public method to write a string to the file.

s (str, bytes or bytearray)
text to be written

AsyncFile.write_p

write_p(s)

Public method to write a json-rpc 2.0 coded string to the file.

s (str)
text to be written

AsyncFile.writelines

writelines(lines)

Public method to write a list of strings to the file.

lines (list of str)
list of texts to be written
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AsyncPendingWrite

AsyncPendingWrite(file)

Module function to check for data to be written.

file (file)
The file object to be checked
Return:
Flag indicating if there is data waiting
Return Type:
int
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