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authorDaniil Baturin <daniil@vyos.io>2022-07-05 10:23:57 -0400
committerDaniil Baturin <daniil@vyos.io>2022-07-05 10:23:57 -0400
commitdc4b80f1aee3c786889d9e34cf6b54a1a5b83b56 (patch)
treeadf22c87c2d9a82d0efc4391ca2cb739766cf806 /src/op_mode/memory.py
parentd943440080858ea4951dc62c931faeb55f72f601 (diff)
downloadvyos-1x-dc4b80f1aee3c786889d9e34cf6b54a1a5b83b56.tar.gz
vyos-1x-dc4b80f1aee3c786889d9e34cf6b54a1a5b83b56.zip
T2719: convert the 'show system memory' script to the new style
Diffstat (limited to 'src/op_mode/memory.py')
-rwxr-xr-xsrc/op_mode/memory.py90
1 files changed, 90 insertions, 0 deletions
diff --git a/src/op_mode/memory.py b/src/op_mode/memory.py
new file mode 100755
index 000000000..a3870e498
--- /dev/null
+++ b/src/op_mode/memory.py
@@ -0,0 +1,90 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2021-2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+import sys
+
+import vyos.opmode
+
+
+def _get_system_memory():
+ from re import search as re_search
+
+ def find_value(keyword, mem_data):
+ regex = keyword + ':\s+(\d+)'
+ res = re_search(regex, mem_data).group(1)
+ return int(res)
+
+ with open("/proc/meminfo", "r") as f:
+ mem_data = f.read()
+
+ total = find_value('MemTotal', mem_data)
+ available = find_value('MemAvailable', mem_data)
+ buffers = find_value('Buffers', mem_data)
+ cached = find_value('Cached', mem_data)
+
+ used = total - available
+
+ res = {
+ "total": total,
+ "free": available,
+ "used": used,
+ "buffers": buffers,
+ "cached": cached
+ }
+
+ return res
+
+def _get_system_memory_human():
+ from vyos.util import bytes_to_human
+
+ mem = _get_system_memory()
+
+ for key in mem:
+ # The Linux kernel exposes memory values in kilobytes,
+ # so we need to normalize them
+ mem[key] = bytes_to_human(mem[key], initial_exponent=10)
+
+ return mem
+
+def _get_raw_data():
+ return _get_system_memory_human()
+
+def _get_formatted_output(mem):
+ out = "Total: {}\n".format(mem["total"])
+ out += "Free: {}\n".format(mem["free"])
+ out += "Used: {}".format(mem["used"])
+
+ return out
+
+def show(raw: bool):
+ ram_data = _get_raw_data()
+
+ if raw:
+ return ram_data
+ else:
+ return _get_formatted_output(ram_data)
+
+
+if __name__ == '__main__':
+ try:
+ res = vyos.opmode.run(sys.modules[__name__])
+ if res:
+ print(res)
+ except ValueError as e:
+ print(e)
+ sys.exit(1)
+