From 5a2d2cbd8850db7c03d1333d6c29aab6e3bc75ad Mon Sep 17 00:00:00 2001 From: Wenchao Xia Date: Wed, 18 Jun 2014 08:43:45 +0200 Subject: [PATCH] qapi event: convert BLOCK_IO_ERROR and BLOCK_JOB_ERROR Signed-off-by: Wenchao Xia Signed-off-by: Paolo Bonzini Reviewed-by: Eric Blake Signed-off-by: Luiz Capitulino --- block.c | 41 +++++++--------------------------- blockjob.c | 6 ++++- docs/qmp/qmp-events.txt | 47 --------------------------------------- include/block/block_int.h | 3 --- qapi-schema.json | 14 ++++++++++++ qapi/block-core.json | 39 ++++++++++++++++++++++++++++++++ 6 files changed, 66 insertions(+), 84 deletions(-) diff --git a/block.c b/block.c index 288efbca98..e6f9b71e11 100644 --- a/block.c +++ b/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" @@ -2133,36 +2132,6 @@ 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 BLOCK_ERROR_ACTION_REPORT: - action_str = "report"; - break; - case BLOCK_ERROR_ACTION_IGNORE: - action_str = "ignore"; - break; - case BLOCK_ERROR_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_dev_change_media_cb(BlockDriverState *bs, bool load) { if (bs->dev_ops && bs->dev_ops->change_media_cb) { @@ -3636,10 +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); } } diff --git a/blockjob.c b/blockjob.c index bc63d42dc8..ee2a6fbbdc 100644 --- a/blockjob.c +++ b/blockjob.c @@ -34,6 +34,7 @@ #include "block/coroutine.h" #include "qmp-commands.h" #include "qemu/timer.h" +#include "qapi-event.h" void *block_job_create(const BlockJobDriver *driver, BlockDriverState *bs, int64_t speed, BlockDriverCompletionFunc *cb, @@ -277,7 +278,10 @@ BlockErrorAction block_job_error_action(BlockJob *job, BlockDriverState *bs, default: abort(); } - bdrv_emit_qmp_error_event(job->bs, QEVENT_BLOCK_JOB_ERROR, action, is_read); + qapi_event_send_block_job_error(bdrv_get_device_name(bs), + is_read ? IO_OPERATION_TYPE_READ : + IO_OPERATION_TYPE_WRITE, + action, &error_abort); if (action == BLOCK_ERROR_ACTION_STOP) { block_job_pause(job); block_job_iostatus_set_err(job, error); diff --git a/docs/qmp/qmp-events.txt b/docs/qmp/qmp-events.txt index d97b389b07..56bd145ab3 100644 --- a/docs/qmp/qmp-events.txt +++ b/docs/qmp/qmp-events.txt @@ -50,31 +50,6 @@ Example: "size": 65536 }, "timestamp": { "seconds": 1378126126, "microseconds": 966463 } } -BLOCK_IO_ERROR --------------- - -Emitted when a disk I/O error occurs. - -Data: - -- "device": device name (json-string) -- "operation": I/O operation (json-string, "read" or "write") -- "action": action that has been taken, it's one of the following (json-string): - "ignore": error has been ignored - "report": error has been reported to the device - "stop": the VM is going to stop because of the error - -Example: - -{ "event": "BLOCK_IO_ERROR", - "data": { "device": "ide0-hd1", - "operation": "write", - "action": "stop" }, - "timestamp": { "seconds": 1265044230, "microseconds": 450486 } } - -Note: If action is "stop", a STOP event will eventually follow the -BLOCK_IO_ERROR event. - BLOCK_JOB_CANCELLED ------------------- @@ -128,28 +103,6 @@ Example: "speed": 0 }, "timestamp": { "seconds": 1267061043, "microseconds": 959568 } } -BLOCK_JOB_ERROR ---------------- - -Emitted when a block job encounters an error. - -Data: - -- "device": device name (json-string) -- "operation": I/O operation (json-string, "read" or "write") -- "action": action that has been taken, it's one of the following (json-string): - "ignore": error has been ignored, the job may fail later - "report": error will be reported and the job canceled - "stop": error caused job to be paused - -Example: - -{ "event": "BLOCK_JOB_ERROR", - "data": { "device": "ide0-hd1", - "operation": "write", - "action": "stop" }, - "timestamp": { "seconds": 1265044230, "microseconds": 450486 } } - BLOCK_JOB_READY --------------- diff --git a/include/block/block_int.h b/include/block/block_int.h index 7aa2213f77..715c761fad 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -425,9 +425,6 @@ void bdrv_attach_aio_context(BlockDriverState *bs, #ifdef _WIN32 int is_windows_drive(const char *filename); #endif -void bdrv_emit_qmp_error_event(const BlockDriverState *bdrv, - enum MonitorEvent ev, - BlockErrorAction action, bool is_read); /** * stream_start: diff --git a/qapi-schema.json b/qapi-schema.json index 0bf5894f7e..a8de08c0a4 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -3371,4 +3371,18 @@ { 'enum': 'WatchdogExpirationAction', 'data': [ 'reset', 'shutdown', 'poweroff', 'pause', 'debug', 'none' ] } +## +# @IoOperationType +# +# An enumeration of the I/O operation types +# +# @read: read operation +# +# @write: write operation +# +# Since: 2.1 +## +{ 'enum': 'IoOperationType', + 'data': [ 'read', 'write' ] } + { 'include': 'qapi-event.json' } diff --git a/qapi/block-core.json b/qapi/block-core.json index b7f36c638a..682864df3f 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -1426,3 +1426,42 @@ ## { 'enum': 'BlockErrorAction', 'data': [ 'ignore', 'report', 'stop' ] } + + +## +# @BLOCK_IO_ERROR +# +# Emitted when a disk I/O error occurs +# +# @device: device name +# +# @operation: I/O operation +# +# @action: action that has been taken +# +# Note: If action is "stop", a STOP event will eventually follow the +# BLOCK_IO_ERROR event +# +# Since: 0.13.0 +## +{ 'event': 'BLOCK_IO_ERROR', + 'data': { 'device': 'str', 'operation': 'IoOperationType', + 'action': 'BlockErrorAction' } } + +## +# @BLOCK_JOB_ERROR +# +# Emitted when a block job encounters an error +# +# @device: device name +# +# @operation: I/O operation +# +# @action: action that has been taken +# +# Since: 1.3 +## +{ 'event': 'BLOCK_JOB_ERROR', + 'data': { 'device' : 'str', + 'operation': 'IoOperationType', + 'action' : 'BlockdevOnError' } }