| /* |
| * QMP interface for background jobs |
| * |
| * Copyright (c) 2011 IBM Corp. |
| * Copyright (c) 2012, 2018 Red Hat, Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "qemu/job.h" |
| #include "qapi/qapi-commands-job.h" |
| #include "qapi/error.h" |
| #include "trace-root.h" |
| |
| /* Get a job using its ID and acquire its AioContext */ |
| static Job *find_job(const char *id, AioContext **aio_context, Error **errp) |
| { |
| Job *job; |
| |
| *aio_context = NULL; |
| |
| job = job_get(id); |
| if (!job) { |
| error_setg(errp, "Job not found"); |
| return NULL; |
| } |
| |
| *aio_context = job->aio_context; |
| aio_context_acquire(*aio_context); |
| |
| return job; |
| } |
| |
| void qmp_job_cancel(const char *id, Error **errp) |
| { |
| AioContext *aio_context; |
| Job *job = find_job(id, &aio_context, errp); |
| |
| if (!job) { |
| return; |
| } |
| |
| trace_qmp_job_cancel(job); |
| job_user_cancel(job, true, errp); |
| aio_context_release(aio_context); |
| } |
| |
| void qmp_job_pause(const char *id, Error **errp) |
| { |
| AioContext *aio_context; |
| Job *job = find_job(id, &aio_context, errp); |
| |
| if (!job) { |
| return; |
| } |
| |
| trace_qmp_job_pause(job); |
| job_user_pause(job, errp); |
| aio_context_release(aio_context); |
| } |
| |
| void qmp_job_resume(const char *id, Error **errp) |
| { |
| AioContext *aio_context; |
| Job *job = find_job(id, &aio_context, errp); |
| |
| if (!job) { |
| return; |
| } |
| |
| trace_qmp_job_resume(job); |
| job_user_resume(job, errp); |
| aio_context_release(aio_context); |
| } |
| |
| void qmp_job_complete(const char *id, Error **errp) |
| { |
| AioContext *aio_context; |
| Job *job = find_job(id, &aio_context, errp); |
| |
| if (!job) { |
| return; |
| } |
| |
| trace_qmp_job_complete(job); |
| job_complete(job, errp); |
| aio_context_release(aio_context); |
| } |
| |
| void qmp_job_finalize(const char *id, Error **errp) |
| { |
| AioContext *aio_context; |
| Job *job = find_job(id, &aio_context, errp); |
| |
| if (!job) { |
| return; |
| } |
| |
| trace_qmp_job_finalize(job); |
| job_finalize(job, errp); |
| aio_context_release(aio_context); |
| } |
| |
| void qmp_job_dismiss(const char *id, Error **errp) |
| { |
| AioContext *aio_context; |
| Job *job = find_job(id, &aio_context, errp); |
| |
| if (!job) { |
| return; |
| } |
| |
| trace_qmp_job_dismiss(job); |
| job_dismiss(&job, errp); |
| aio_context_release(aio_context); |
| } |
| |
| static JobInfo *job_query_single(Job *job, Error **errp) |
| { |
| JobInfo *info; |
| |
| assert(!job_is_internal(job)); |
| |
| info = g_new(JobInfo, 1); |
| *info = (JobInfo) { |
| .id = g_strdup(job->id), |
| .type = job_type(job), |
| .status = job->status, |
| .current_progress = job->progress.current, |
| .total_progress = job->progress.total, |
| .has_error = !!job->err, |
| .error = job->err ? \ |
| g_strdup(error_get_pretty(job->err)) : NULL, |
| }; |
| |
| return info; |
| } |
| |
| JobInfoList *qmp_query_jobs(Error **errp) |
| { |
| JobInfoList *head = NULL, **p_next = &head; |
| Job *job; |
| |
| for (job = job_next(NULL); job; job = job_next(job)) { |
| JobInfoList *elem; |
| AioContext *aio_context; |
| |
| if (job_is_internal(job)) { |
| continue; |
| } |
| elem = g_new0(JobInfoList, 1); |
| aio_context = job->aio_context; |
| aio_context_acquire(aio_context); |
| elem->value = job_query_single(job, errp); |
| aio_context_release(aio_context); |
| if (!elem->value) { |
| g_free(elem); |
| qapi_free_JobInfoList(head); |
| return NULL; |
| } |
| *p_next = elem; |
| p_next = &elem->next; |
| } |
| |
| return head; |
| } |