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Berrange" , Markus Armbruster , Steve Sistare Subject: [RFC V1 09/14] qemu-option: filtered foreach Date: Thu, 17 Oct 2024 08:14:10 -0700 Message-Id: <1729178055-207271-10-git-send-email-steven.sistare@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1729178055-207271-1-git-send-email-steven.sistare@oracle.com> References: <1729178055-207271-1-git-send-email-steven.sistare@oracle.com> X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-17_16,2024-10-17_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=999 adultscore=0 spamscore=0 malwarescore=0 bulkscore=0 suspectscore=0 mlxscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2409260000 definitions=main-2410170105 X-Proofpoint-GUID: r5jGEB_J2HRV22nNVxeL8JYINFHdAuqP X-Proofpoint-ORIG-GUID: r5jGEB_J2HRV22nNVxeL8JYINFHdAuqP Received-SPF: pass client-ip=205.220.177.32; envelope-from=steven.sistare@oracle.com; helo=mx0b-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Define an accessor to loop over an options list and call a function for each element that passes a filter function. Signed-off-by: Steve Sistare --- include/qemu/option.h | 5 +++++ util/qemu-option.c | 25 +++++++++++++++++++++++++ 2 files changed, 30 insertions(+) diff --git a/include/qemu/option.h b/include/qemu/option.h index 01e673a..fe37d4c 100644 --- a/include/qemu/option.h +++ b/include/qemu/option.h @@ -138,9 +138,14 @@ QDict *qemu_opts_to_qdict_filtered(QemuOpts *opts, QDict *qdict, QDict *qemu_opts_to_qdict(QemuOpts *opts, QDict *qdict); bool qemu_opts_absorb_qdict(QemuOpts *opts, QDict *qdict, Error **errp); +typedef bool (*qemu_opts_filterfunc)(void *opaque, QemuOpts *opts); typedef int (*qemu_opts_loopfunc)(void *opaque, QemuOpts *opts, Error **errp); int qemu_opts_foreach(QemuOptsList *list, qemu_opts_loopfunc func, void *opaque, Error **errp); +int qemu_opts_filter_foreach(QemuOptsList *list, + qemu_opts_filterfunc filter, + qemu_opts_loopfunc func, + void *opaque, Error **errp); void qemu_opts_print(QemuOpts *opts, const char *sep); void qemu_opts_print_help(QemuOptsList *list, bool print_caption); void qemu_opts_free(QemuOptsList *list); diff --git a/util/qemu-option.c b/util/qemu-option.c index 201f7a8..f2f02d6 100644 --- a/util/qemu-option.c +++ b/util/qemu-option.c @@ -1142,6 +1142,31 @@ int qemu_opts_foreach(QemuOptsList *list, qemu_opts_loopfunc func, return rc; } +int qemu_opts_filter_foreach(QemuOptsList *list, + qemu_opts_filterfunc filter, + qemu_opts_loopfunc func, + void *opaque, Error **errp) +{ + Location loc; + QemuOpts *opts, *next; + int rc = 0; + + loc_push_none(&loc); + QTAILQ_FOREACH_SAFE(opts, &list->head, next, next) { + if (!filter(opaque, opts)) { + continue; + } + loc_restore(&opts->loc); + rc = func(opaque, opts, errp); + if (rc) { + break; + } + assert(!errp || !*errp); + } + loc_pop(&loc); + return rc; +} + static size_t count_opts_list(QemuOptsList *list) { QemuOptDesc *desc = NULL;