diff options
Diffstat (limited to 'src/allocator.py')
| -rw-r--r-- | src/allocator.py | 162 |
1 files changed, 94 insertions, 68 deletions
diff --git a/src/allocator.py b/src/allocator.py index ac35cb9..0e92c2a 100644 --- a/src/allocator.py +++ b/src/allocator.py @@ -1,4 +1,22 @@ -import copy +# Copyright 2018-2019 Florian Fischer <florian.fl.fischer@fau.de> +# +# This file is part of allocbench. +# +# allocbench is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# allocbench 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 allocbench. If not, see <http://www.gnu.org/licenses/>. + +"""Alloactor related class definitions and helpers""" + from datetime import datetime import inspect import importlib @@ -11,31 +29,36 @@ import src.globalvars from src.util import print_status, print_debug, print_error, print_info2 -library_path = "" -for l in subprocess.run(["ldconfig", "-v"], stdout=subprocess.PIPE, - stderr=subprocess.PIPE, - universal_newlines=True).stdout.splitlines(): +LIBRARY_PATH = "" +for line in subprocess.run(["ldconfig", "-v"], stdout=subprocess.PIPE, + stderr=subprocess.PIPE, + universal_newlines=True).stdout.splitlines(): - if not l.startswith('\t'): - library_path += l + if not line.startswith('\t'): + LIBRARY_PATH += line -builddir = os.path.join(src.globalvars.builddir, "allocators") -srcdir = os.path.join(builddir, "src") +BUILDDIR = os.path.join(src.globalvars.builddir, "allocators") +SRCDIR = os.path.join(src.globalvars.allocbuilddir, "src") -if not os.path.isdir(srcdir): - os.makedirs(srcdir) +if not os.path.isdir(SRCDIR): + os.makedirs(SRCDIR) -class Allocator_Sources (object): - def __init__(self, name, retrieve_cmds=[], prepare_cmds=[], reset_cmds=[]): - self.name = name - self.dir = os.path.join(srcdir, self.name) - self.retrieve_cmds = retrieve_cmds - self.patchdir = os.path.join("src/allocators/", self.name) - self.prepare_cmds = prepare_cmds - self.reset_cmds = reset_cmds +class AllocatorSources: + """Class representing sources an allocator is build from - def run_cmds(self, function, cwd=srcdir): + AllocatorSources can retrieve, prepare and reset their managed sources + """ + def __init__(self, name, retrieve_cmds=None, prepare_cmds=None, reset_cmds=None): + self.name = name + self.dir = os.path.join(SRCDIR, self.name) + self.patchdir = os.path.join(src.globalvars.allocsrcdir, self.name) + self.retrieve_cmds = retrieve_cmds or [] + self.prepare_cmds = prepare_cmds or [] + self.reset_cmds = reset_cmds or [] + + def run_cmds(self, function, cwd=SRCDIR): + """Helper to run retrieve, prepare or reset commands""" print_status(function, self.name, "...") cmds = getattr(self, function+"_cmds") @@ -43,17 +66,23 @@ class Allocator_Sources (object): stdout = subprocess.PIPE if src.globalvars.verbosity < 2 else None for cmd in cmds: - p = subprocess.run(cmd, shell=True, cwd=cwd, stderr=subprocess.PIPE, - stdout=stdout) + proc = subprocess.run(cmd, shell=True, cwd=cwd, + stderr=subprocess.PIPE, stdout=stdout, + universal_newlines=True) - if p.returncode: - print_error(function, self.name, "failed with", p.returncode, + if proc.returncode: + print_error(function, self.name, "failed with", proc.returncode, file=sys.stderr) - print_debug(p.stderr, file=sys.stderr) + print_debug(proc.stderr, file=sys.stderr) return False return True def prepare(self): + """Prepare the managed sources for building + + If the sources aren't available yet they are retrieved. + Otherwise they are reset. + """ if not os.path.isdir(self.dir): if (not self.run_cmds("retrieve") or not self.run_cmds("prepare", cwd=self.dir)): @@ -64,38 +93,45 @@ class Allocator_Sources (object): self.reset() def reset(self): + """Reset the managed sources""" if not self.run_cmds("reset", cwd=self.dir): exit(1) def patch(self, patches): + """Patch the managed sources using patch(1)""" if not patches: return stdout = subprocess.PIPE if src.globalvars.verbosity < 2 else None - cwd = os.path.join(srcdir, self.name) + cwd = os.path.join(SRCDIR, self.name) print_status("Patching", self.name, "...") for patch in patches: - with open(patch.format(patchdir=self.patchdir), "rb") as f: - p = subprocess.run("patch -p1", shell=True, cwd=cwd, - stderr=subprocess.PIPE, stdout=stdout, - input=f.read()) - - if p.returncode: + print(self.patchdir) + print(patch) + with open(patch.format(patchdir=self.patchdir), "rb") as patch_file: + proc = subprocess.run("patch -p1", shell=True, cwd=cwd, + stderr=subprocess.PIPE, stdout=stdout, + input=patch_file.read()) + + if proc.returncode: print_error("Patching of", self.name, "failed.", file=sys.stderr) - print_debug(p.stderr, file=sys.stderr) + print_debug(proc.stderr, file=sys.stderr) exit(1) -class Allocator (object): +class Allocator: + """Allocator base class + + It builds the allocator and produces a for allocbench usable allocator dict""" allowed_attributes = ["binary_suffix", "version", "sources", "build_cmds", "LD_PRELOAD", "cmd_prefix", "color", "patches", "LD_LIBRARY_PATH"] def __init__(self, name, **kwargs): self.name = name - self.dir = os.path.join(builddir, self.name) + self.dir = os.path.join(BUILDDIR, self.name) # Update attributes self.__dict__.update((k, v) for k, v in kwargs.items() if k in self.allowed_attributes) @@ -106,14 +142,15 @@ class Allocator (object): setattr(self, attr, None) def build(self): + """Build the allocator if needed and produce allocator dict""" build_needed = not os.path.isdir(self.dir) - buildtimestamp_file = os.path.join(self.dir, ".buildtime") + buildtimestamp_path = os.path.join(self.dir, ".buildtime") if not build_needed: print_info2("Old build found. Comparing build time with mtime") - with open(buildtimestamp_file, "r") as f: - timestamp = datetime.fromtimestamp(float(f.read())) + with open(buildtimestamp_path, "r") as buildtimestamp_file: + timestamp = datetime.fromtimestamp(float(buildtimestamp_file.read())) modtime = os.stat(inspect.getfile(self.__class__)).st_mtime modtime = datetime.fromtimestamp(modtime) @@ -139,18 +176,19 @@ class Allocator (object): cmd = cmd.format(**{"dir": self.dir, "srcdir": self.sources.dir}) - p = subprocess.run(cmd, cwd=builddir, shell=True, - stderr=subprocess.PIPE, stdout=stdout) - if p.returncode: - print_error(cmd, "failed with:", p.returncode) - print_debug(p.stderr, file=sys.stderr) + proc = subprocess.run(cmd, cwd=BUILDDIR, shell=True, + stderr=subprocess.PIPE, stdout=stdout, + universal_newlines=True) + if proc.returncode: + print_error(cmd, "failed with:", proc.returncode) + print_debug(proc.stderr, file=sys.stderr) print_error("Building", self.name, "failed ...") shutil.rmtree(self.dir, ignore_errors=True) exit(2) - with open(buildtimestamp_file, "w") as f: - print_info2("Save build time to:", buildtimestamp_file) - f.write(str(datetime.now().timestamp())) + with open(buildtimestamp_path, "w") as buildtimestamp_file: + print_info2("Save build time to:", buildtimestamp_path) + buildtimestamp_file.write(str(datetime.now().timestamp())) print_info2("Create allocator dictionary") res_dict = {"cmd_prefix": self.cmd_prefix or "", @@ -172,29 +210,18 @@ class Allocator (object): return res_dict -def patch_alloc(name, alloc, patches, **kwargs): - new_alloc = copy.deepcopy(alloc) - new_alloc.name = name - new_alloc.patches = patches - - new_alloc.dir = os.path.join(builddir, name) - new_alloc.__dict__.update((k, v) for k, v in kwargs.items() if k in alloc.allowed_attributes) - - return new_alloc - - -def read_allocators_collection_file(alloc_file): +def read_allocators_collection_file(alloc_path): """Read and evaluate a python file looking for an exported dict called allocators""" - exec_globals = {"__file__": name} - with open(name, "r") as alloc_file: + exec_globals = {"__file__": alloc_path} + with open(alloc_path, "r") as alloc_file: exec(compile(alloc_file.read()), exec_globals) if "allocators" in exec_globals: return exec_globals["allocators"] - else: - print_error("No global dictionary 'allocators' in", name) - return {} + + print_error("No global dictionary 'allocators' in", alloc_path) + return {} def collect_allocators(allocators): """Collect allocators to benchmark @@ -214,7 +241,7 @@ def collect_allocators(allocators): if allocators is None and os.path.isfile(default_allocators_file): return read_allocators_collection_file(default_allocators_file) - elif allocators is not None: + if allocators is not None: ret = {} for name in allocators: # file exists -> interpret as python file with a global variable allocators @@ -235,8 +262,7 @@ def collect_allocators(allocators): else: print_error(name, "is neither a python file or a known allocator definition.") return ret - else: - print_status("Using system-wide installed allocators ...") - importlib.import_module('src.allocators.installed_allocators') - return src.allocators.installed_allocators.allocators + print_status("Using system-wide installed allocators ...") + importlib.import_module('src.allocators.installed_allocators') + return src.allocators.installed_allocators.allocators |