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e00ecd1bed
Change the output of qemucapsprobe to record the commands used for querying. This allows to easily identify which reply belongs to which command and also will allow to test whether we use stable queries. This change includes changing dropping of the QMP greeting from the file and reformatting of the query and output to stdout. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: John Ferlan <jferlan@redhat.com>
126 lines
3.2 KiB
C
126 lines
3.2 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 bool first = true;
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static void
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printLineSkipEmpty(const char *line,
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FILE *fp)
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{
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const char *p;
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for (p = line; *p; p++) {
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if (p[0] == '\n' && p[1] == '\n')
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continue;
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fputc(*p, fp);
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}
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}
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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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char *reformatted;
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REAL_SYM(realQemuMonitorSend);
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if (!(reformatted = virJSONStringReformat(msg->txBuffer, true))) {
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fprintf(stderr, "Failed to reformat command string '%s'\n", msg->txBuffer);
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abort();
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}
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if (first)
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first = false;
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else
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printLineSkipEmpty("\n", stdout);
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printLineSkipEmpty(reformatted, stdout);
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VIR_FREE(reformatted);
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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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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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if (!(value = virJSONValueFromString(line)) ||
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!(json = virJSONValueToString(value, true))) {
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fprintf(stderr, "Failed to reformat reply string '%s'\n", line);
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abort();
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}
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/* Ignore QMP greeting */
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if (virJSONValueObjectHasKey(value, "QMP"))
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goto cleanup;
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if (first)
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first = false;
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else
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printLineSkipEmpty("\n", stdout);
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printLineSkipEmpty(json, stdout);
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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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