Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into st…

…aging

* remotes/qmp-unstable/queue/qmp: (43 commits)
  monitor: protect event emission
  monitor: protect outbuf and mux_out with mutex
  qemu-char: make writes thread-safe
  qemu-char: move pty_chr_update_read_handler around
  qemu-char: do not call chr_write directly
  qemu-char: introduce qemu_chr_alloc
  qapi event: clean up
  qapi event: convert QUORUM events
  qapi event: convert GUEST_PANICKED
  qapi event: convert BALLOON_CHANGE
  qmp: convert ACPI_DEVICE_OST event
  qapi event: convert SPICE events
  qapi event: convert VNC events
  qapi event: convert NIC_RX_FILTER_CHANGED
  qapi event: convert other BLOCK_JOB events
  qapi event: convert BLOCK_IMAGE_CORRUPTED
  qapi event: convert BLOCK_IO_ERROR and BLOCK_JOB_ERROR
  qapi event: convert DEVICE_TRAY_MOVED
  qapi event: convert DEVICE_DELETED
  qapi event: convert WATCHDOG
  ...

Signed-off-by: Peter Maydell <[email protected]>

Makefile

@@ -45,8 +45,8 @@ endif
 endif
 
 GENERATED_HEADERS = config-host.h qemu-options.def
-GENERATED_HEADERS += qmp-commands.h qapi-types.h qapi-visit.h
-GENERATED_SOURCES += qmp-marshal.c qapi-types.c qapi-visit.c
+GENERATED_HEADERS += qmp-commands.h qapi-types.h qapi-visit.h qapi-event.h
+GENERATED_SOURCES += qmp-marshal.c qapi-types.c qapi-visit.c qapi-event.c
 
 GENERATED_HEADERS += trace/generated-events.h
 GENERATED_SOURCES += trace/generated-events.c
@@ -202,7 +202,7 @@ Makefile: $(version-obj-y) $(version-lobj-y)
 # Build libraries
 
 libqemustub.a: $(stub-obj-y)
-libqemuutil.a: $(util-obj-y) qapi-types.o qapi-visit.o
+libqemuutil.a: $(util-obj-y) qapi-types.o qapi-visit.o qapi-event.o
 
 block-modules = $(foreach o,$(block-obj-m),"$(basename $(subst /,-,$o))",) NULL
 util/module.o-cflags = -D'CONFIG_BLOCK_MODULES=$(block-modules)'
@@ -246,18 +246,27 @@ $(SRC_PATH)/qga/qapi-schema.json $(SRC_PATH)/scripts/qapi-commands.py $(qapi-py)
 		$(gen-out-type) -o qga/qapi-generated -p "qga-" -i $<, \
 		"  GEN   $@")
 
+qapi-modules = $(SRC_PATH)/qapi-schema.json $(SRC_PATH)/qapi/common.json \
+               $(SRC_PATH)/qapi/block.json $(SRC_PATH)/qapi/block-core.json \
+               $(SRC_PATH)/qapi-event.json
+
 qapi-types.c qapi-types.h :\
-$(SRC_PATH)/qapi-schema.json $(SRC_PATH)/scripts/qapi-types.py $(qapi-py)
+$(qapi-modules) $(SRC_PATH)/scripts/qapi-types.py $(qapi-py)
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py \
 		$(gen-out-type) -o "." -b -i $<, \
 		"  GEN   $@")
 qapi-visit.c qapi-visit.h :\
-$(SRC_PATH)/qapi-schema.json $(SRC_PATH)/scripts/qapi-visit.py $(qapi-py)
+$(qapi-modules) $(SRC_PATH)/scripts/qapi-visit.py $(qapi-py)
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py \
 		$(gen-out-type) -o "." -b -i $<, \
 		"  GEN   $@")
+qapi-event.c qapi-event.h :\
+$(qapi-modules) $(SRC_PATH)/scripts/qapi-event.py $(qapi-py)
+	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-event.py \
+		$(gen-out-type) -o "." -b -i $<, \
+		"  GEN   $@")
 qmp-commands.h qmp-marshal.c :\
-$(SRC_PATH)/qapi-schema.json $(SRC_PATH)/scripts/qapi-commands.py $(qapi-py)
+$(qapi-modules) $(SRC_PATH)/scripts/qapi-commands.py $(qapi-py)
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py \
 		$(gen-out-type) -o "." -m -i $<, \
 		"  GEN   $@")

Makefile.objs

@@ -12,7 +12,7 @@ block-obj-y += main-loop.o iohandler.o qemu-timer.o
 block-obj-$(CONFIG_POSIX) += aio-posix.o
 block-obj-$(CONFIG_WIN32) += aio-win32.o
 block-obj-y += block/
-block-obj-y += qapi-types.o qapi-visit.o
+block-obj-y += qapi-types.o qapi-visit.o qapi-event.o
 block-obj-y += qemu-io-cmds.o
 
 block-obj-y += qemu-coroutine.o qemu-coroutine-lock.o qemu-coroutine-io.o

backends/baum.c

@@ -574,7 +574,7 @@ CharDriverState *chr_baum_init(void)
     int tty;
 
     baum = g_malloc0(sizeof(BaumDriverState));
-    baum->chr = chr = g_malloc0(sizeof(CharDriverState));
+    baum->chr = chr = qemu_chr_alloc();
 
     chr->opaque = baum;
     chr->chr_write = baum_write;

backends/msmouse.c

@@ -67,7 +67,7 @@ CharDriverState *qemu_chr_open_msmouse(void)
 {
     CharDriverState *chr;
 
-    chr = g_malloc0(sizeof(CharDriverState));
+    chr = qemu_chr_alloc();
     chr->chr_write = msmouse_chr_write;
     chr->chr_close = msmouse_chr_close;
     chr->explicit_be_open = true;

balloon.c

@@ -81,19 +81,6 @@ static int qemu_balloon_status(BalloonInfo *info)
     return 1;
 }
 
-void qemu_balloon_changed(int64_t actual)
-{
-    QObject *data;
-
-    data = qobject_from_jsonf("{ 'actual': %" PRId64 " }",
-                              actual);
-
-    monitor_protocol_event(QEVENT_BALLOON_CHANGE, data);
-
-    qobject_decref(data);
-}
-
-
 BalloonInfo *qmp_query_balloon(Error **errp)
 {
     BalloonInfo *info;

block.c

@@ -24,7 +24,6 @@
 #include "config-host.h"
 #include "qemu-common.h"
 #include "trace.h"
-#include "monitor/monitor.h"
 #include "block/block_int.h"
 #include "block/blockjob.h"
 #include "qemu/module.h"
@@ -35,6 +34,7 @@
 #include "block/qapi.h"
 #include "qmp-commands.h"
 #include "qemu/timer.h"
+#include "qapi-event.h"
 
 #ifdef CONFIG_BSD
 #include <sys/types.h>
@@ -2132,59 +2132,20 @@ void bdrv_set_dev_ops(BlockDriverState *bs, const BlockDevOps *ops,
     bs->dev_opaque = opaque;
 }
 
-void bdrv_emit_qmp_error_event(const BlockDriverState *bdrv,
-                               enum MonitorEvent ev,
-                               BlockErrorAction action, bool is_read)
-{
-    QObject *data;
-    const char *action_str;
-
-    switch (action) {
-    case BDRV_ACTION_REPORT:
-        action_str = "report";
-        break;
-    case BDRV_ACTION_IGNORE:
-        action_str = "ignore";
-        break;
-    case BDRV_ACTION_STOP:
-        action_str = "stop";
-        break;
-    default:
-        abort();
-    }
-
-    data = qobject_from_jsonf("{ 'device': %s, 'action': %s, 'operation': %s }",
-                              bdrv->device_name,
-                              action_str,
-                              is_read ? "read" : "write");
-    monitor_protocol_event(ev, data);
-
-    qobject_decref(data);
-}
-
-static void bdrv_emit_qmp_eject_event(BlockDriverState *bs, bool ejected)
-{
-    QObject *data;
-
-    data = qobject_from_jsonf("{ 'device': %s, 'tray-open': %i }",
-                              bdrv_get_device_name(bs), ejected);
-    monitor_protocol_event(QEVENT_DEVICE_TRAY_MOVED, data);
-
-    qobject_decref(data);
-}
-
 static void bdrv_dev_change_media_cb(BlockDriverState *bs, bool load)
 {
     if (bs->dev_ops && bs->dev_ops->change_media_cb) {
         bool tray_was_closed = !bdrv_dev_is_tray_open(bs);
         bs->dev_ops->change_media_cb(bs->dev_opaque, load);
         if (tray_was_closed) {
             /* tray open */
-            bdrv_emit_qmp_eject_event(bs, true);
+            qapi_event_send_device_tray_moved(bdrv_get_device_name(bs),
+                                              true, &error_abort);
         }
         if (load) {
             /* tray close */
-            bdrv_emit_qmp_eject_event(bs, false);
+            qapi_event_send_device_tray_moved(bdrv_get_device_name(bs),
+                                              false, &error_abort);
         }
     }
 }
@@ -3606,13 +3567,14 @@ BlockErrorAction bdrv_get_error_action(BlockDriverState *bs, bool is_read, int e
 
     switch (on_err) {
     case BLOCKDEV_ON_ERROR_ENOSPC:
-        return (error == ENOSPC) ? BDRV_ACTION_STOP : BDRV_ACTION_REPORT;
+        return (error == ENOSPC) ?
+               BLOCK_ERROR_ACTION_STOP : BLOCK_ERROR_ACTION_REPORT;
     case BLOCKDEV_ON_ERROR_STOP:
-        return BDRV_ACTION_STOP;
+        return BLOCK_ERROR_ACTION_STOP;
     case BLOCKDEV_ON_ERROR_REPORT:
-        return BDRV_ACTION_REPORT;
+        return BLOCK_ERROR_ACTION_REPORT;
     case BLOCKDEV_ON_ERROR_IGNORE:
-        return BDRV_ACTION_IGNORE;
+        return BLOCK_ERROR_ACTION_IGNORE;
     default:
         abort();
     }
@@ -3627,7 +3589,7 @@ void bdrv_error_action(BlockDriverState *bs, BlockErrorAction action,
 {
     assert(error >= 0);
 
-    if (action == BDRV_ACTION_STOP) {
+    if (action == BLOCK_ERROR_ACTION_STOP) {
         /* First set the iostatus, so that "info block" returns an iostatus
          * that matches the events raised so far (an additional error iostatus
          * is fine, but not a lost one).
@@ -3643,10 +3605,16 @@ void bdrv_error_action(BlockDriverState *bs, BlockErrorAction action,
          * also ensures that the STOP/RESUME pair of events is emitted.
          */
         qemu_system_vmstop_request_prepare();
-        bdrv_emit_qmp_error_event(bs, QEVENT_BLOCK_IO_ERROR, action, is_read);
+        qapi_event_send_block_io_error(bdrv_get_device_name(bs),
+                                       is_read ? IO_OPERATION_TYPE_READ :
+                                       IO_OPERATION_TYPE_WRITE,
+                                       action, &error_abort);
         qemu_system_vmstop_request(RUN_STATE_IO_ERROR);
     } else {
-        bdrv_emit_qmp_error_event(bs, QEVENT_BLOCK_IO_ERROR, action, is_read);
+        qapi_event_send_block_io_error(bdrv_get_device_name(bs),
+                                       is_read ? IO_OPERATION_TYPE_READ :
+                                       IO_OPERATION_TYPE_WRITE,
+                                       action, &error_abort);
     }
 }
 
@@ -5216,7 +5184,8 @@ void bdrv_eject(BlockDriverState *bs, bool eject_flag)
     }
 
     if (bs->device_name[0] != '\0') {
-        bdrv_emit_qmp_eject_event(bs, eject_flag);
+        qapi_event_send_device_tray_moved(bdrv_get_device_name(bs),
+                                          eject_flag, &error_abort);
     }
 }
 

block/backup.c

@@ -325,7 +325,7 @@ static void coroutine_fn backup_run(void *opaque)
                 /* Depending on error action, fail now or retry cluster */
                 BlockErrorAction action =
                     backup_error_action(job, error_is_read, -ret);
-                if (action == BDRV_ACTION_REPORT) {
+                if (action == BLOCK_ERROR_ACTION_REPORT) {
                     break;
                 } else {
                     start--;

block/mirror.c

@@ -118,7 +118,7 @@ static void mirror_write_complete(void *opaque, int ret)
 
         bdrv_set_dirty(source, op->sector_num, op->nb_sectors);
         action = mirror_error_action(s, false, -ret);
-        if (action == BDRV_ACTION_REPORT && s->ret >= 0) {
+        if (action == BLOCK_ERROR_ACTION_REPORT && s->ret >= 0) {
             s->ret = ret;
         }
     }
@@ -135,7 +135,7 @@ static void mirror_read_complete(void *opaque, int ret)
 
         bdrv_set_dirty(source, op->sector_num, op->nb_sectors);
         action = mirror_error_action(s, true, -ret);
-        if (action == BDRV_ACTION_REPORT && s->ret >= 0) {
+        if (action == BLOCK_ERROR_ACTION_REPORT && s->ret >= 0) {
             s->ret = ret;
         }
 
@@ -415,7 +415,8 @@ static void coroutine_fn mirror_run(void *opaque)
             trace_mirror_before_flush(s);
             ret = bdrv_flush(s->target);
             if (ret < 0) {
-                if (mirror_error_action(s, false, -ret) == BDRV_ACTION_REPORT) {
+                if (mirror_error_action(s, false, -ret) ==
+                    BLOCK_ERROR_ACTION_REPORT) {
                     goto immediate_exit;
                 }
             } else {
@@ -426,7 +427,7 @@ static void coroutine_fn mirror_run(void *opaque)
                  */
                 s->common.offset = end * BDRV_SECTOR_SIZE;
                 if (!s->synced) {
-                    block_job_ready(&s->common);
+                    block_job_event_ready(&s->common);
                     s->synced = true;
                 }
 

block/qcow2-refcount.c

@@ -27,6 +27,7 @@
 #include "block/qcow2.h"
 #include "qemu/range.h"
 #include "qapi/qmp/types.h"
+#include "qapi-event.h"
 
 static int64_t alloc_clusters_noref(BlockDriverState *bs, uint64_t size);
 static int QEMU_WARN_UNUSED_RESULT update_refcount(BlockDriverState *bs,
@@ -1807,7 +1808,6 @@ int qcow2_pre_write_overlap_check(BlockDriverState *bs, int ign, int64_t offset,
     } else if (ret > 0) {
         int metadata_ol_bitnr = ffs(ret) - 1;
         char *message;
-        QObject *data;
 
         assert(metadata_ol_bitnr < QCOW2_OL_MAX_BITNR);
 
@@ -1816,12 +1816,14 @@ int qcow2_pre_write_overlap_check(BlockDriverState *bs, int ign, int64_t offset,
                 metadata_ol_names[metadata_ol_bitnr]);
         message = g_strdup_printf("Prevented %s overwrite",
                 metadata_ol_names[metadata_ol_bitnr]);
-        data = qobject_from_jsonf("{ 'device': %s, 'msg': %s, 'offset': %"
-                PRId64 ", 'size': %" PRId64 " }", bs->device_name, message,
-                offset, size);
-        monitor_protocol_event(QEVENT_BLOCK_IMAGE_CORRUPTED, data);
+        qapi_event_send_block_image_corrupted(bdrv_get_device_name(bs),
+                                              message,
+                                              true,
+                                              offset,
+                                              true,
+                                              size,
+                                              &error_abort);
         g_free(message);
-        qobject_decref(data);
 
         qcow2_mark_corrupt(bs);
         bs->drv = NULL; /* make BDS unusable */

block/quorum.c

@@ -17,6 +17,7 @@
 #include <gnutls/crypto.h>
 #include "block/block_int.h"
 #include "qapi/qmp/qjson.h"
+#include "qapi-event.h"
 
 #define HASH_LENGTH 32
 
@@ -198,32 +199,22 @@ static QuorumAIOCB *quorum_aio_get(BDRVQuorumState *s,
 
 static void quorum_report_bad(QuorumAIOCB *acb, char *node_name, int ret)
 {
-    QObject *data;
-    assert(node_name);
-    data = qobject_from_jsonf("{ 'node-name': %s"
-                              ", 'sector-num': %" PRId64
-                              ", 'sectors-count': %d }",
-                              node_name, acb->sector_num, acb->nb_sectors);
+    const char *msg = NULL;
     if (ret < 0) {
-        QDict *dict = qobject_to_qdict(data);
-        qdict_put(dict, "error", qstring_from_str(strerror(-ret)));
+        msg = strerror(-ret);
     }
-    monitor_protocol_event(QEVENT_QUORUM_REPORT_BAD, data);
-    qobject_decref(data);
+    qapi_event_send_quorum_report_bad(!!msg, msg, node_name,
+                                      acb->sector_num, acb->nb_sectors, &error_abort);
 }
 
 static void quorum_report_failure(QuorumAIOCB *acb)
 {
-    QObject *data;
     const char *reference = acb->common.bs->device_name[0] ?
                             acb->common.bs->device_name :
                             acb->common.bs->node_name;
-    data = qobject_from_jsonf("{ 'reference': %s"
-                              ", 'sector-num': %" PRId64
-                              ", 'sectors-count': %d }",
-                              reference, acb->sector_num, acb->nb_sectors);
-    monitor_protocol_event(QEVENT_QUORUM_FAILURE, data);
-    qobject_decref(data);
+
+    qapi_event_send_quorum_failure(reference, acb->sector_num,
+                                   acb->nb_sectors, &error_abort);
 }
 
 static int quorum_vote_error(QuorumAIOCB *acb);

block/stream.c

@@ -159,14 +159,14 @@ static void coroutine_fn stream_run(void *opaque)
             BlockErrorAction action =
                 block_job_error_action(&s->common, s->common.bs, s->on_error,
                                        true, -ret);
-            if (action == BDRV_ACTION_STOP) {
+            if (action == BLOCK_ERROR_ACTION_STOP) {
                 n = 0;
                 continue;
             }
             if (error == 0) {
                 error = ret;
             }
-            if (action == BDRV_ACTION_REPORT) {
+            if (action == BLOCK_ERROR_ACTION_REPORT) {
                 break;
             }
         }