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![Markus Armbruster](/assets/img/avatar_default.png)
The has_FOO for pointer-valued FOO are redundant, except for arrays. They are also a nuisance to work with. Recent commit "qapi: Start to elide redundant has_FOO in generated C" provided the means to elide them step by step. This is the step for qapi/job.json. Said commit explains the transformation in more detail. The invariant violations mentioned there do not occur here. Cc: John Snow <jsnow@redhat.com> Cc: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> Cc: qemu-block@nongnu.org Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> Message-Id: <20221104160712.3005652-15-armbru@redhat.com>
189 lines
4.3 KiB
C
189 lines
4.3 KiB
C
/*
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* QMP interface for background jobs
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*
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* Copyright (c) 2011 IBM Corp.
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* Copyright (c) 2012, 2018 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "qemu/job.h"
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#include "qapi/qapi-commands-job.h"
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#include "qapi/error.h"
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#include "trace/trace-root.h"
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/*
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* Get a job using its ID. Called with job_mutex held.
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*/
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static Job *find_job_locked(const char *id, Error **errp)
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{
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Job *job;
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job = job_get_locked(id);
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if (!job) {
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error_setg(errp, "Job not found");
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return NULL;
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}
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return job;
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}
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void qmp_job_cancel(const char *id, Error **errp)
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{
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Job *job;
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JOB_LOCK_GUARD();
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job = find_job_locked(id, errp);
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if (!job) {
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return;
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}
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trace_qmp_job_cancel(job);
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job_user_cancel_locked(job, true, errp);
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}
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void qmp_job_pause(const char *id, Error **errp)
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{
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Job *job;
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JOB_LOCK_GUARD();
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job = find_job_locked(id, errp);
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if (!job) {
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return;
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}
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trace_qmp_job_pause(job);
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job_user_pause_locked(job, errp);
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}
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void qmp_job_resume(const char *id, Error **errp)
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{
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Job *job;
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JOB_LOCK_GUARD();
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job = find_job_locked(id, errp);
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if (!job) {
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return;
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}
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trace_qmp_job_resume(job);
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job_user_resume_locked(job, errp);
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}
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void qmp_job_complete(const char *id, Error **errp)
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{
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Job *job;
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JOB_LOCK_GUARD();
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job = find_job_locked(id, errp);
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if (!job) {
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return;
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}
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trace_qmp_job_complete(job);
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job_complete_locked(job, errp);
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}
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void qmp_job_finalize(const char *id, Error **errp)
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{
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Job *job;
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JOB_LOCK_GUARD();
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job = find_job_locked(id, errp);
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if (!job) {
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return;
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}
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trace_qmp_job_finalize(job);
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job_ref_locked(job);
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job_finalize_locked(job, errp);
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job_unref_locked(job);
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}
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void qmp_job_dismiss(const char *id, Error **errp)
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{
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Job *job;
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JOB_LOCK_GUARD();
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job = find_job_locked(id, errp);
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if (!job) {
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return;
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}
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trace_qmp_job_dismiss(job);
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job_dismiss_locked(&job, errp);
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}
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/* Called with job_mutex held. */
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static JobInfo *job_query_single_locked(Job *job, Error **errp)
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{
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JobInfo *info;
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uint64_t progress_current;
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uint64_t progress_total;
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assert(!job_is_internal(job));
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progress_get_snapshot(&job->progress, &progress_current,
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&progress_total);
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info = g_new(JobInfo, 1);
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*info = (JobInfo) {
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.id = g_strdup(job->id),
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.type = job_type(job),
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.status = job->status,
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.current_progress = progress_current,
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.total_progress = progress_total,
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.error = job->err ?
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g_strdup(error_get_pretty(job->err)) : NULL,
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};
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return info;
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}
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JobInfoList *qmp_query_jobs(Error **errp)
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{
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JobInfoList *head = NULL, **tail = &head;
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Job *job;
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JOB_LOCK_GUARD();
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for (job = job_next_locked(NULL); job; job = job_next_locked(job)) {
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JobInfo *value;
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if (job_is_internal(job)) {
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continue;
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}
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value = job_query_single_locked(job, errp);
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if (!value) {
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qapi_free_JobInfoList(head);
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return NULL;
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}
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QAPI_LIST_APPEND(tail, value);
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}
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return head;
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}
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