File indexing completed on 2025-02-16 05:12:09

0001 import math
0002 import multiprocessing
0003 
0004 from conans.util.files import load
0005 
0006 
0007 def build_jobs(conanfile):
0008     njobs = conanfile.conf.get("tools.build:jobs",
0009                                default=_cpu_count(),
0010                                check_type=int)
0011     return njobs
0012 
0013 
0014 def _cpu_count():
0015     try:
0016         try:
0017             # This is necessary to deduce docker cpu_count
0018             cfs_quota_us = int(load("/sys/fs/cgroup/cpu/cpu.cfs_quota_us"))
0019             cfs_period_us = int(load("/sys/fs/cgroup/cpu/cpu.cfs_period_us"))
0020             if cfs_quota_us > 0 and cfs_period_us > 0:
0021                 return int(math.ceil(cfs_quota_us / cfs_period_us))
0022         except (EnvironmentError, TypeError):
0023             pass
0024         return multiprocessing.cpu_count()
0025     except NotImplementedError:
0026         # print("multiprocessing.cpu_count() not implemented. Defaulting to 1 cpu")
0027         return 1  # Safe guess