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add tagging branches RW/RO/NW

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This allows users to tag a branch as readonly or not for writing regardless
of how the filesystem is mounted. Should simplify deployments and offer
more flexibility.
This commit is contained in:
Antonio SJ Musumeci 2018-10-20 23:40:02 -04:00
parent 8dd0dc11ee
commit b55ebba4ed
57 changed files with 1586 additions and 1210 deletions
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18
src/statfs.cpp
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@ -64,7 +64,7 @@ _merge_statvfs(struct statvfs * const out,
static
void
_statfs_core(const char *srcmount,
_statfs_core(const string &path_,
unsigned long &min_bsize,
unsigned long &min_frsize,
unsigned long &min_namemax,
@ -74,11 +74,11 @@ _statfs_core(const char *srcmount,
struct stat st;
struct statvfs fsstat;
rv = fs::statvfs(srcmount,fsstat);
rv = fs::statvfs(path_,fsstat);
if(rv == -1)
return;
rv = fs::stat(srcmount,st);
rv = fs::stat(path_,st);
if(rv == -1)
return;
@ -94,17 +94,17 @@ _statfs_core(const char *srcmount,
static
int
_statfs(const vector<string> &srcmounts,
struct statvfs &fsstat)
_statfs(const Branches &branches_,
struct statvfs &fsstat)
{
map<dev_t,struct statvfs> fsstats;
unsigned long min_bsize = ULONG_MAX;
unsigned long min_frsize = ULONG_MAX;
unsigned long min_namemax = ULONG_MAX;
for(size_t i = 0, ei = srcmounts.size(); i < ei; i++)
for(size_t i = 0, ei = branches_.size(); i < ei; i++)
{
_statfs_core(srcmounts[i].c_str(),min_bsize,min_frsize,min_namemax,fsstats);
_statfs_core(branches_[i].path,min_bsize,min_frsize,min_namemax,fsstats);
}
map<dev_t,struct statvfs>::iterator iter = fsstats.begin();
@ -135,9 +135,9 @@ namespace mergerfs
const fuse_context *fc = fuse_get_context();
const Config &config = Config::get(fc);
const ugid::Set ugid(fc->uid,fc->gid);
const rwlock::ReadGuard readlock(&config.srcmountslock);
const rwlock::ReadGuard readlock(&config.branches_lock);
return _statfs(config.srcmounts,
return _statfs(config.branches,
*stat);
}
}