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73078906f3
When starting QEMU more than once during a single probing process, qemucapsprobe utility would save QMP greeting several times, which doesn't play well with our test monitor. Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
/*
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* Copyright (C) 2016 Red Hat, Inc.
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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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* Author: Jiri Denemark <jdenemar@redhat.com>
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*/
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#include <config.h>
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#include <stdio.h>
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#include <dlfcn.h>
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#include "internal.h"
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#include "viralloc.h"
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#include "virjson.h"
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#include "qemu/qemu_monitor.h"
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#include "qemu/qemu_monitor_json.h"
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#define REAL_SYM(realFunc) \
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do { \
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if (!realFunc && !(realFunc = dlsym(RTLD_NEXT, __FUNCTION__))) { \
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fprintf(stderr, "Cannot find real '%s' symbol\n", \
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__FUNCTION__); \
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abort(); \
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} \
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} while (0)
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static int (*realQemuMonitorSend)(qemuMonitorPtr mon,
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qemuMonitorMessagePtr msg);
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int
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qemuMonitorSend(qemuMonitorPtr mon,
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qemuMonitorMessagePtr msg)
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{
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REAL_SYM(realQemuMonitorSend);
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fprintf(stderr, "%s", msg->txBuffer);
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return realQemuMonitorSend(mon, msg);
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}
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static int (*realQemuMonitorJSONIOProcessLine)(qemuMonitorPtr mon,
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const char *line,
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qemuMonitorMessagePtr msg);
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int
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qemuMonitorJSONIOProcessLine(qemuMonitorPtr mon,
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const char *line,
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qemuMonitorMessagePtr msg)
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{
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static bool first = true;
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virJSONValuePtr value = NULL;
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char *json = NULL;
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int ret;
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REAL_SYM(realQemuMonitorJSONIOProcessLine);
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ret = realQemuMonitorJSONIOProcessLine(mon, line, msg);
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if (ret == 0 &&
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(value = virJSONValueFromString(line)) &&
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(json = virJSONValueToString(value, 1))) {
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char *p;
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bool skip = false;
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if (first) {
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first = false;
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} else {
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/* Ignore QMP greeting if it's not the first one */
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if (virJSONValueObjectHasKey(value, "QMP"))
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goto cleanup;
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putchar('\n');
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}
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for (p = json; *p; p++) {
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if (skip && *p == '\n') {
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continue;
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} else {
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skip = *p == '\n';
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putchar(*p);
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}
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}
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}
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cleanup:
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VIR_FREE(json);
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virJSONValueFree(value);
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return ret;
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}
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