rtems/rtems-tools
1
0
Fork 0
mirror of https://git.rtems.org/rtems-tools/ synced 2025-05-14 20:49:18 +08:00
Code Issues Packages Projects Releases Wiki Activity

execute: Use the io python module for output capture.

Browse Source 
This change drops the overhead of capturing the process output. The
io module in Python is similar to the POSIX API for a file read
where a read will return up to the buffer size rather than blocking
until the buffer is full.
This commit is contained in:
Chris Johns 2017-04-25 00:32:53 +10:00
parent 7d3350d0bb
commit 437092487f
1 changed files with 11 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
rtemstoolkit/execute.py
View File

@ -1,6 +1,6 @@
# #
# RTEMS Tools Project (http://www.rtems.org/) # RTEMS Tools Project (http://www.rtems.org/)
# Copyright 2010-2016 Chris Johns (chrisj@rtems.org) # Copyright 2010-2017 Chris Johns (chrisj@rtems.org)
# All rights reserved. # All rights reserved.
# #
# This file is part of the RTEMS Tools package in 'rtems-tools'. # This file is part of the RTEMS Tools package in 'rtems-tools'.
@ -37,6 +37,7 @@
from __future__ import print_function from __future__ import print_function
import functools import functools
import io
import os import os
import re import re
import sys import sys
@ -193,7 +194,11 @@ class execute(object):
line = '' line = ''
try: try:
while True: while True:
data = fh.read(1) #
# The io module file handling return up to the size passed
# in.
#
data = fh.read(4096)
if len(data) == 0: if len(data) == 0:
break break
# str and bytes are the same type in Python2 # str and bytes are the same type in Python2
@ -255,7 +260,8 @@ class execute(object):
stdout_thread = threading.Thread(target = _readthread, stdout_thread = threading.Thread(target = _readthread,
name = '_stdout[%s]' % (name), name = '_stdout[%s]' % (name),
args = (self, args = (self,
proc.stdout, io.open(proc.stdout.fileno(),
closefd = False),
self.output, self.output,
'')) ''))
stdout_thread.daemon = True stdout_thread.daemon = True
@ -264,7 +270,8 @@ class execute(object):
stderr_thread = threading.Thread(target = _readthread, stderr_thread = threading.Thread(target = _readthread,
name = '_stderr[%s]' % (name), name = '_stderr[%s]' % (name),
args = (self, args = (self,
proc.stderr, io.open(proc.stderr.fileno(),
closefd = False),
self.output, self.output,
self.error_prefix)) self.error_prefix))
stderr_thread.daemon = True stderr_thread.daemon = True