This commit implements multiple performance improvements
to the transaction code:
- Don't process xbps_pkg_name() N times each time we access
its package dictionary (via pkgdb or rpool), just do it once
at xbps_pkgdb_init() time. At pkgdb init time, it just creates
a property in pkgdb, "pkgname". At rpool time, each time a
package is accessed, the "pkgname" string property is added.
- The package transaction dictionary contains the "transaction"
object to know what's the pkg type. This has been changed to an
uint8, this simplifies the logic and it's faster than checking
a string object. See xbps_trans_type_t and xbps_transaction_pkg_type().
- Fixed the issue that was marked with XXX in transaction shlibs
checking code. This has been fixed and improved and resources are
now just freed as expected.
- Simplified random code all over the place, avoiding unnecessary
allocations or operations.
- Rename some transaction files to have a better description.
This is my first rototill to the code in 2020.
The funcs xbps_pkg_name() and xbps_pkgpattern_name() were
using malloc(3) to return the result, until now.
They now have been changed to not allocate the result
via malloc, the caller is responsible to provide a buffer
at least of XBPS_NAME_SIZE (64).
If for whatever reason the pkgname can't be guessed,
returns false. This should avoid lots of small allocs
around libxbps.
New functions have the following prototype:
bool xbps_pkg_name(char *dst, size_t len, const char *pkg)
bool xbps_pkgpattern_name(char *dst, size_t len, const char *pkg)
as suggested by @duncaen.
When there's a new xbps update, xbps-install(1) will now return
EBUSY (16) and a message (if dry-run disabled) explaining
how to proceed.
If there's an update and transaction does not contain xbps, it will
error out unless the 'xbps' pkg is the only target pkg, i.e:
# xbps-install -Su
# echo $?
16
To update xbps, the only way to proceed is to explicitly declare
it as an update, i.e:
# xbps-install -u xbps
The dry-run mode will still show there's an xbps update.
Modified the existing test cases to satisfy the new behaviour.
Closes#166Closes#142
Before this change xbps-install could return EEXIST
when the package is already installed, or already up-to-date.
Return 0 if such condition happens, and only return EEXIST
if there's a file conflict.
Close#51
`xbps-install` will report free space available on disk wording:
> Free space on disk: ...
'free' above is supposed to be an adjective.
But 'free' can also be a verb,
thus the above message can be interpreted as free some space on disk.
'Free' is now changed to 'Available' to avoid ambiguity.
This is mostly to avoid the allocation required by the externalization of the
transaction dictionary, which in some cases is huge.
This should reduce the massive memory usage required to inspect the externalized
dictionary.
If a package that is going to be installed or updated contains invalid
dependencies return ENXIO and XBPS_STATE_INVALID_DEP xbps state to clients.
This improves the error messages returned to the clients when such
condition happens.
The list of required external deps is now confuse, libarchive and openssl.
libxbps now includes a wrapper for proplib prefixed with xbps_ rather than prop_.
If a package is already installed and it's being installed without -f (force),
xbps-install must return EEXIST.
xbps-src really expects this to ignore duplicated build dependencies.
