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#!/usr/bin/env python
# -*- Mode: python; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option) any
# later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with this program; if not, write to the Free Software Foundation, Inc., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Copyright (C) 2012 Lanedo GmbH
#
import string
import utils
from Variable import Variable
"""
Variable type for signed/unsigned Integers
('guint8', 'gint8', 'guint16', 'gint16', 'guint32', 'gint32' formats)
"""
class VariableInteger(Variable):
"""
Constructor
"""
def __init__(self, dictionary):
# Call the parent constructor
Variable.__init__(self, dictionary)
self.private_format = self.format
self.public_format = dictionary['public-format'] if 'public-format' in dictionary else self.private_format
"""
Read a single integer from the raw byte buffer
"""
def emit_buffer_read(self, f, line_prefix, variable_name, buffer_name, buffer_len):
translations = { 'lp' : line_prefix,
'public_format' : self.public_format,
'private_format' : self.private_format,
'variable_name' : variable_name,
'buffer_name' : buffer_name,
'buffer_len' : buffer_len }
if self.private_format == self.public_format:
template = (
'${lp}/* Read the ${private_format} variable from the buffer */\n'
'${lp}qmi_utils_read_${private_format}_from_buffer (\n'
'${lp} &${buffer_name},\n'
'${lp} &${buffer_len},\n'
'${lp} &(${variable_name}));\n')
else:
template = (
'${lp}{\n'
'${lp} ${private_format} tmp;\n'
'\n'
'${lp} /* Read the ${private_format} variable from the buffer */\n'
'${lp} qmi_utils_read_${private_format}_from_buffer (\n'
'${lp} &${buffer_name},\n'
'${lp} &${buffer_len},\n'
'${lp} &tmp);\n'
'${lp} ${variable_name} = (${public_format})tmp;\n'
'${lp}}\n')
f.write(string.Template(template).substitute(translations))
"""
Write a single integer to the raw byte buffer
"""
def emit_buffer_write(self, f, line_prefix, variable_name, buffer_name, buffer_len):
translations = { 'lp' : line_prefix,
'private_format' : self.private_format,
'variable_name' : variable_name,
'buffer_name' : buffer_name,
'buffer_len' : buffer_len }
if self.private_format == self.public_format:
template = (
'${lp}/* Write the ${private_format} variable to the buffer */\n'
'${lp}qmi_utils_write_${private_format}_to_buffer (\n'
'${lp} &${buffer_name},\n'
'${lp} &${buffer_len},\n'
'${lp} &(${variable_name}));\n')
else:
template = (
'${lp}{\n'
'${lp} ${private_format} tmp;\n'
'\n'
'${lp} tmp = (${private_format})${variable_name};\n'
'${lp} /* Write the ${private_format} variable to the buffer */\n'
'${lp} qmi_utils_write_${private_format}_to_buffer (\n'
'${lp} &${buffer_name},\n'
'${lp} &${buffer_len},\n'
'${lp} &tmp);\n'
'${lp}}\n')
f.write(string.Template(template).substitute(translations))
"""
Get the integer as a printable string. Given that we support max 32-bit
integers, it is safe to cast all them to standard integers when printing.
"""
def emit_get_printable(self, f, line_prefix, printable, buffer_name, buffer_len):
if utils.format_is_unsigned_integer(self.private_format):
common_format = '%u'
common_cast = 'guint'
else:
common_format = '%d'
common_cast = 'gint'
translations = { 'lp' : line_prefix,
'private_format' : self.private_format,
'printable' : printable,
'buffer_name' : buffer_name,
'buffer_len' : buffer_len,
'common_format' : common_format,
'common_cast' : common_cast }
template = (
'\n'
'${lp}{\n'
'${lp} ${private_format} tmp;\n'
'\n'
'${lp} /* Read the ${private_format} variable from the buffer */\n'
'${lp} qmi_utils_read_${private_format}_from_buffer (\n'
'${lp} &${buffer_name},\n'
'${lp} &${buffer_len},\n'
'${lp} &tmp);\n'
'\n'
'${lp} g_string_append_printf (${printable}, "${common_format}", (${common_cast})tmp);\n'
'${lp}}\n')
f.write(string.Template(template).substitute(translations))
"""
Copy an integer to another one
"""
def emit_copy(self, f, line_prefix, variable_name_from, variable_name_to):
translations = { 'lp' : line_prefix,
'from' : variable_name_from,
'to' : variable_name_to }
template = (
'${lp}${to} = ${from};\n')
f.write(string.Template(template).substitute(translations))
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