edd1c9e325
Currently, the devicemapper library sets cookies to correlate wait operations, which must be unique (as the lvm2 library doesn't detect duplicate cookies). The current method for cookie generation is to take the address of a cookie variable. However, because the variable is declared on the stack, execution patterns can lead to the cookie variable being declared at the same stack location, which results in a high likelyhood of duplicate cookie use, which in turn can lead to various odd lvm behaviors, which can be hard to track down (object use before create, duplicate completions, etc). Lets guarantee that the cookie we generate is unique by declaring it on the heap instead. This guarantees that the address of the variable won't be reused until such time as the UdevWait operation completes, and drops its reference to it, at which time the gc can reclaim it. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> |
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|---|---|---|
| .. | ||
| aaparser | ||
| archive | ||
| authorization | ||
| broadcaster | ||
| chrootarchive | ||
| devicemapper | ||
| directory | ||
| discovery | ||
| filenotify | ||
| fileutils | ||
| fsutils | ||
| gitutils | ||
| homedir | ||
| httputils | ||
| idtools | ||
| ioutils | ||
| jsonlog | ||
| jsonmessage | ||
| listeners | ||
| locker | ||
| longpath | ||
| loopback | ||
| mount | ||
| namesgenerator | ||
| parsers | ||
| pidfile | ||
| platform | ||
| plugingetter | ||
| plugins | ||
| pools | ||
| progress | ||
| promise | ||
| pubsub | ||
| random | ||
| reexec | ||
| registrar | ||
| signal | ||
| stdcopy | ||
| streamformatter | ||
| stringid | ||
| stringutils | ||
| symlink | ||
| sysinfo | ||
| system | ||
| tailfile | ||
| tarsum | ||
| templates | ||
| term | ||
| testutil | ||
| tlsconfig | ||
| truncindex | ||
| urlutil | ||
| useragent | ||
| README.md | ||
pkg/ is a collection of utility packages used by the Docker project without being specific to its internals.
Utility packages are kept separate from the docker core codebase to keep it as small and concise as possible. If some utilities grow larger and their APIs stabilize, they may be moved to their own repository under the Docker organization, to facilitate re-use by other projects. However that is not the priority.
The directory pkg is named after the same directory in the camlistore project. Since Brad is a core
Go maintainer, we thought it made sense to copy his methods for organizing Go code :) Thanks Brad!
Because utility packages are small and neatly separated from the rest of the codebase, they are a good place to start for aspiring maintainers and contributors. Get in touch if you want to help maintain them!