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add {,ep,msp}pfrd policies

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Percentage Free Random Distribution

Chooses a random branch based on the available space percentage free.

IE: if branch A has 1G free and branch B has 2G then B should be chosen
twice as often.
This commit is contained in:
Antonio SJ Musumeci 2020-08-19 17:14:37 -04:00
parent 7ff995631e
commit 046844083f
9 changed files with 729 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

18
src/policy.cpp
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@ -32,6 +32,7 @@ const std::vector<Policy> Policy::_policies_ =
(POLICY(eplfs,PRESERVES_PATH))
(POLICY(eplus,PRESERVES_PATH))
(POLICY(epmfs,PRESERVES_PATH))
(POLICY(eppfrd,PRESERVES_PATH))
(POLICY(eprand,PRESERVES_PATH))
(POLICY(erofs,DOESNT_PRESERVE_PATH))
(POLICY(ff,DOESNT_PRESERVE_PATH))
@ -41,7 +42,9 @@ const std::vector<Policy> Policy::_policies_ =
(POLICY(msplfs,PRESERVES_PATH))
(POLICY(msplus,PRESERVES_PATH))
(POLICY(mspmfs,PRESERVES_PATH))
(POLICY(msppfrd,PRESERVES_PATH))
(POLICY(newest,DOESNT_PRESERVE_PATH))
(POLICY(pfrd,DOESNT_PRESERVE_PATH))
(POLICY(rand,DOESNT_PRESERVE_PATH));
const Policy * const Policy::policies = &_policies_[1];
@ -55,6 +58,7 @@ CONST_POLICY(epff);
CONST_POLICY(eplfs);
CONST_POLICY(eplus);
CONST_POLICY(epmfs);
CONST_POLICY(eppfrd);
CONST_POLICY(eprand);
CONST_POLICY(erofs);
CONST_POLICY(ff);
@ -64,19 +68,21 @@ CONST_POLICY(mfs);
CONST_POLICY(msplfs);
CONST_POLICY(msplus);
CONST_POLICY(mspmfs);
CONST_POLICY(msppfrd);
CONST_POLICY(newest);
CONST_POLICY(pfrd);
CONST_POLICY(rand);
const Policy&
Policy::find(const std::string &str)
{
for(int i = Enum::BEGIN; i != Enum::END; ++i)
{
if(policies[i] == str)
return policies[i];
}
for(int i = Enum::BEGIN; i != Enum::END; ++i)
{
if(policies[i] == str)
return policies[i];
}
return invalid;
return invalid;
}
const Policy&