[PATCH 00/40] Replace various string helpers (and fixes for surrounding code)
Peter Krempa
pkrempa at redhat.com
Sat Feb 6 08:32:22 UTC 2021
This series mainly focuses on removal of virStringListAdd which tries
to promote the use of a string list without counter variable as a
dynamic array. This means that every operation counts the number of
elements and when used in a loop resutls in O(n^2) algorithms.
To discourage it's future buggy use remove the helpers completely.
The end of the series then replaces some libvirt helpers for string
lists by the glib equivalents.
Patches:
1-3,18,24-25,28: cleanups
4-6: fix buggy iteration and memory handling in qemuNamespaceUnlinkPaths
7: helpers for easy use of GSList + char *
8-17,19-20: Don't use virStringListAdd inside of loops and prepare for
removal
21: Remove virStringListAdd and virStringListRemove
22-23: Open-code and remove virStringListGetFirstWithPrefix
26-27: Replace virStringListHasString by g_strv_contains
29-34: Preparation and removal of virStringListLength
(mostly inefficient iteration)
35-37,40: Replace/reimplement virStringSplit(Count) by g_strsplit
38-39: Replace virStringListJoin by g_strjoinv
Peter Krempa (40):
qemuMonitorJSONObjectProperty: Make 'str' member const
util: virmacmap: Use g_autofree for virJSONValue
util: macmap: Remove unused cleanup labels and 'ret' variables
qemuDomainGetPreservedMounts: Refactor to return NULL-terminated
string lists
qemuNamespaceUnlinkPaths: Fix wrong use of iterator variable
qemuNamespaceUnlinkPaths: Fix inconsistent cleanup handling
util: Add helpers for auto-freeing GSList filled with strings
qemu: namespace: Don't use 'virStringListAdd' inside loops
virHookCall: Don't use 'virStringListAdd' to construct list in loop
qemuInteropFetchConfigs: Don't use 'virStringListAdd' to construct
list
virCPUDefCheckFeatures: Don't use 'virStringListAdd' to construct list
x86ModelParseFeatures: Don't construct list using 'virStringListAdd'
virResctrlInfoGetMonitorPrefix: Don't use 'virStringListAdd' to
construct list
virResctrlMonitorGetStats: Don't use 'virStringListAdd'
qemu: Convert 'priv->dbusVMStateIds' to a GSList
util: macmap: Convert to use GSList for storing macs instead of string
lists
xenParseXLNamespaceData: Pre-calculate the length of array
virfirewalltest: Shuffle the code around to remove a loop
virfirewalltest: Avoid use of 'virStringListAdd'
qemusecuritytest: Store 'notRestored' files in a hash table
util: virstring: Remove virStringListAdd and virStringListRemove
virCgroupGetValueForBlkDev: Rewrite lookup of returned string
virStringListGetFirstWithPrefix: Remove unused helper
vz: Replace virStringSplitCount(, , , NULL) with virStringSplit
qemuProcessUpdateDevices: Refactor cleanup and memory handling
Replace virStringListHasString by g_strv_contains
util: virstring: Remove virStringListHasString
virStorageBackendSheepdogAddVolume: Clean up memory handling
qemufirmwaretest: Base iteration on string lists
qemuvhostusertest: Base iteration on string lists
Replace virStringListLength where actual lenght is not needed
virPolkitCheckAuth: Avoid virStringListLength in loop condition
Replace virStringListLength by g_strv_length
util: virstring: Remove virStringListLength
Replace virStringSplit with g_strsplit
util: virstring: Remove virStringSplit
virStringSplitCount: Reimplement using g_strsplit and g_strv_length
Replace virStringListJoin by g_strjoinv
util: virstring: Remove virStringListJoin
virstringtest: Remove testing of virStringSplitCount
src/bhyve/bhyve_command.c | 2 +-
src/bhyve/bhyve_parse_command.c | 4 +-
src/conf/cpu_conf.c | 14 +-
src/conf/storage_conf.c | 2 +-
src/cpu/cpu_arm.c | 2 +-
src/cpu/cpu_x86.c | 8 +-
src/libvirt_private.syms | 11 +-
src/libxl/libxl_conf.c | 8 +-
src/libxl/xen_common.c | 8 +-
src/libxl/xen_xl.c | 49 +--
src/lxc/lxc_native.c | 14 +-
src/qemu/qemu_capabilities.c | 8 +-
src/qemu/qemu_command.c | 2 +-
src/qemu/qemu_conf.c | 4 +-
src/qemu/qemu_dbus.c | 19 +-
src/qemu/qemu_dbus.h | 2 +-
src/qemu/qemu_domain.c | 4 +-
src/qemu/qemu_domain.h | 2 +-
src/qemu/qemu_driver.c | 4 +-
src/qemu/qemu_firmware.c | 5 +-
src/qemu/qemu_interop_config.c | 13 +-
src/qemu/qemu_migration.c | 10 +-
src/qemu/qemu_monitor.c | 19 +-
src/qemu/qemu_monitor.h | 2 +-
src/qemu/qemu_monitor_json.c | 5 +-
src/qemu/qemu_monitor_json.h | 4 +-
src/qemu/qemu_namespace.c | 283 +++++++++---------
src/qemu/qemu_process.c | 37 +--
src/qemu/qemu_qapi.c | 2 +-
src/qemu/qemu_slirp.c | 7 +-
src/qemu/qemu_vhost_user.c | 4 +-
src/rpc/virnetsocket.c | 4 +-
src/storage/storage_backend_sheepdog.c | 15 +-
src/storage/storage_backend_zfs.c | 6 +-
.../storage_source_backingstore.c | 8 +-
src/util/meson.build | 1 +
src/util/vircgroup.c | 26 +-
src/util/vircgroupv2.c | 2 +-
src/util/vircommand.c | 2 +-
src/util/virdevmapper.c | 2 +-
src/util/virfile.c | 2 +-
src/util/virfirewall.c | 2 +-
src/util/virfirmware.c | 4 +-
src/util/virglibutil.c | 27 ++
src/util/virglibutil.h | 28 ++
src/util/virhook.c | 15 +-
src/util/virmacmap.c | 175 ++++++-----
src/util/virmacmap.h | 6 +-
src/util/virpolkit.c | 13 +-
src/util/virprocess.c | 5 +-
src/util/virresctrl.c | 17 +-
src/util/virstring.c | 226 +-------------
src/util/virstring.h | 24 +-
src/vz/vz_sdk.c | 2 +-
tests/qemufirmwaretest.c | 24 +-
tests/qemumonitorjsontest.c | 6 +-
tests/qemusecuritymock.c | 19 +-
tests/qemusecuritytest.c | 14 +-
tests/qemusecuritytest.h | 4 +-
tests/qemuvhostusertest.c | 24 +-
tests/qemuxml2argvtest.c | 2 +-
tests/vboxsnapshotxmltest.c | 2 +-
tests/virconftest.c | 4 +-
tests/virfirewalltest.c | 30 +-
tests/virmacmaptest.c | 21 +-
tests/virstringtest.c | 211 +------------
tools/virsh-completer.c | 7 +-
tools/virsh-domain.c | 14 +-
tools/virsh-host.c | 4 +-
tools/virt-login-shell-helper.c | 2 +-
tools/vsh.c | 2 +-
71 files changed, 595 insertions(+), 965 deletions(-)
create mode 100644 src/util/virglibutil.c
create mode 100644 src/util/virglibutil.h
--
2.29.2
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