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600462834f
In many files there are header comments that contain an Author: statement, supposedly reflecting who originally wrote the code. In a large collaborative project like libvirt, any non-trivial file will have been modified by a large number of different contributors. IOW, the Author: comments are quickly out of date, omitting people who have made significant contribitions. In some places Author: lines have been added despite the person merely being responsible for creating the file by moving existing code out of another file. IOW, the Author: lines give an incorrect record of authorship. With this all in mind, the comments are useless as a means to identify who to talk to about code in a particular file. Contributors will always be better off using 'git log' and 'git blame' if they need to find the author of a particular bit of code. This commit thus deletes all Author: comments from the source and adds a rule to prevent them reappearing. The Copyright headers are similarly misleading and inaccurate, however, we cannot delete these as they have legal meaning, despite being largely inaccurate. In addition only the copyright holder is permitted to change their respective copyright statement. Reviewed-by: Erik Skultety <eskultet@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
286 lines
8.1 KiB
C
286 lines
8.1 KiB
C
/*
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* qemu_monitor_text.c: interaction with QEMU monitor console
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*
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* Copyright (C) 2006-2014 Red Hat, Inc.
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* Copyright (C) 2006 Daniel P. Berrange
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include "qemu_monitor_text.h"
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#include "viralloc.h"
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#include "virlog.h"
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#include "virerror.h"
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#include "virstring.h"
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#define VIR_FROM_THIS VIR_FROM_QEMU
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VIR_LOG_INIT("qemu.qemu_monitor_text");
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int qemuMonitorTextSetCPU(qemuMonitorPtr mon, int cpu, bool online)
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{
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char *cmd;
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char *reply = NULL;
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int ret = -1;
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if (virAsprintf(&cmd, "cpu_set %d %s", cpu, online ? "online" : "offline") < 0)
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return -1;
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if (qemuMonitorHMPCommand(mon, cmd, &reply) < 0)
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goto cleanup;
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/* If the command failed qemu prints: 'unknown command'
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* No message is printed on success it seems */
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if (strstr(reply, "unknown command:")) {
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virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
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_("cannot change vcpu count of this domain"));
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goto cleanup;
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}
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ret = 0;
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cleanup:
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VIR_FREE(reply);
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VIR_FREE(cmd);
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return ret;
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}
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int qemuMonitorTextAddDrive(qemuMonitorPtr mon,
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const char *drivestr)
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{
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char *cmd = NULL;
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char *reply = NULL;
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int ret = -1;
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char *safe_str;
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safe_str = qemuMonitorEscapeArg(drivestr);
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if (!safe_str)
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return -1;
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/* 'dummy' here is just a placeholder since there is no PCI
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* address required when attaching drives to a controller */
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if (virAsprintf(&cmd, "drive_add dummy %s", safe_str) < 0)
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goto cleanup;
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if (qemuMonitorHMPCommand(mon, cmd, &reply) < 0)
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goto cleanup;
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if (strstr(reply, "unknown command:")) {
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virReportError(VIR_ERR_OPERATION_FAILED, "%s",
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_("drive hotplug is not supported"));
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goto cleanup;
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}
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if (strstr(reply, "could not open disk image")) {
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virReportError(VIR_ERR_OPERATION_FAILED, "%s",
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_("open disk image file failed"));
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goto cleanup;
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}
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if (strstr(reply, "Could not open")) {
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size_t len = strlen(reply);
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if (reply[len - 1] == '\n')
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reply[len - 1] = '\0';
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virReportError(VIR_ERR_OPERATION_FAILED, "%s",
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reply);
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goto cleanup;
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}
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if (strstr(reply, "Image is not in")) {
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virReportError(VIR_ERR_OPERATION_FAILED, "%s",
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_("Incorrect disk format"));
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goto cleanup;
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}
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ret = 0;
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cleanup:
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VIR_FREE(cmd);
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VIR_FREE(reply);
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VIR_FREE(safe_str);
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return ret;
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}
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int qemuMonitorTextDriveDel(qemuMonitorPtr mon,
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const char *drivestr)
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{
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char *cmd = NULL;
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char *reply = NULL;
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char *safedev;
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int ret = -1;
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if (!(safedev = qemuMonitorEscapeArg(drivestr)))
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goto cleanup;
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if (virAsprintf(&cmd, "drive_del %s", safedev) < 0)
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goto cleanup;
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if (qemuMonitorHMPCommand(mon, cmd, &reply) < 0)
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goto cleanup;
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if (strstr(reply, "unknown command:")) {
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VIR_ERROR(_("deleting drive is not supported. "
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"This may leak data if disk is reassigned"));
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ret = 1;
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goto cleanup;
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/* (qemu) drive_del wark
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* Device 'wark' not found */
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} else if (strstr(reply, "Device '") && strstr(reply, "not found")) {
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/* NB: device not found errors mean the drive was auto-deleted and we
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* ignore the error */
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} else if (STRNEQ(reply, "")) {
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virReportError(VIR_ERR_OPERATION_FAILED,
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_("deleting %s drive failed: %s"), drivestr, reply);
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goto cleanup;
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}
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ret = 0;
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cleanup:
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VIR_FREE(cmd);
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VIR_FREE(reply);
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VIR_FREE(safedev);
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return ret;
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}
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int
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qemuMonitorTextCreateSnapshot(qemuMonitorPtr mon,
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const char *name)
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{
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char *cmd = NULL;
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char *reply = NULL;
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int ret = -1;
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char *safename;
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if (!(safename = qemuMonitorEscapeArg(name)) ||
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virAsprintf(&cmd, "savevm \"%s\"", safename) < 0)
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goto cleanup;
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if (qemuMonitorHMPCommand(mon, cmd, &reply))
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goto cleanup;
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if (strstr(reply, "Error while creating snapshot") ||
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strstr(reply, "Could not open VM state file") ||
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strstr(reply, "State blocked by non-migratable device") ||
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(strstr(reply, "Error") && strstr(reply, "while writing VM"))) {
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virReportError(VIR_ERR_OPERATION_FAILED,
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_("Failed to take snapshot: %s"), reply);
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goto cleanup;
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} else if (strstr(reply, "No block device can accept snapshots")) {
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virReportError(VIR_ERR_OPERATION_INVALID, "%s",
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_("this domain does not have a device to take snapshots"));
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goto cleanup;
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}
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ret = 0;
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cleanup:
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VIR_FREE(safename);
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VIR_FREE(cmd);
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VIR_FREE(reply);
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return ret;
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}
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int qemuMonitorTextLoadSnapshot(qemuMonitorPtr mon, const char *name)
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{
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char *cmd = NULL;
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char *reply = NULL;
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int ret = -1;
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char *safename;
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if (!(safename = qemuMonitorEscapeArg(name)) ||
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virAsprintf(&cmd, "loadvm \"%s\"", safename) < 0)
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goto cleanup;
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if (qemuMonitorHMPCommand(mon, cmd, &reply))
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goto cleanup;
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if (strstr(reply, "No block device supports snapshots") != NULL) {
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virReportError(VIR_ERR_OPERATION_INVALID, "%s",
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_("this domain does not have a device to load snapshots"));
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goto cleanup;
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} else if (strstr(reply, "Could not find snapshot") != NULL) {
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virReportError(VIR_ERR_OPERATION_INVALID,
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_("the snapshot '%s' does not exist, and was not loaded"),
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name);
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goto cleanup;
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} else if (strstr(reply, "Snapshots not supported on device") != NULL) {
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virReportError(VIR_ERR_OPERATION_INVALID, "%s", reply);
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goto cleanup;
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} else if (strstr(reply, "Could not open VM state file") != NULL) {
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virReportError(VIR_ERR_OPERATION_FAILED, "%s", reply);
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goto cleanup;
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} else if (strstr(reply, "Error") != NULL
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&& strstr(reply, "while loading VM state") != NULL) {
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virReportError(VIR_ERR_OPERATION_FAILED, "%s", reply);
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goto cleanup;
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} else if (strstr(reply, "Error") != NULL
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&& strstr(reply, "while activating snapshot on") != NULL) {
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virReportError(VIR_ERR_OPERATION_FAILED, "%s", reply);
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goto cleanup;
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}
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ret = 0;
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cleanup:
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VIR_FREE(safename);
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VIR_FREE(cmd);
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VIR_FREE(reply);
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return ret;
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}
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int qemuMonitorTextDeleteSnapshot(qemuMonitorPtr mon, const char *name)
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{
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char *cmd = NULL;
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char *reply = NULL;
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int ret = -1;
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char *safename;
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if (!(safename = qemuMonitorEscapeArg(name)) ||
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virAsprintf(&cmd, "delvm \"%s\"", safename) < 0)
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goto cleanup;
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if (qemuMonitorHMPCommand(mon, cmd, &reply))
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goto cleanup;
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if (strstr(reply, "No block device supports snapshots") != NULL) {
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virReportError(VIR_ERR_OPERATION_INVALID, "%s",
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_("this domain does not have a device to delete snapshots"));
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goto cleanup;
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} else if (strstr(reply, "Snapshots not supported on device") != NULL) {
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virReportError(VIR_ERR_OPERATION_INVALID, "%s", reply);
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goto cleanup;
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} else if (strstr(reply, "Error") != NULL
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&& strstr(reply, "while deleting snapshot") != NULL) {
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virReportError(VIR_ERR_OPERATION_FAILED, "%s", reply);
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goto cleanup;
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}
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ret = 0;
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cleanup:
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VIR_FREE(safename);
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VIR_FREE(cmd);
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VIR_FREE(reply);
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return ret;
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}
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