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trace: Simplify how st_print_trace_file_status() prints

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st_print_trace_file_status() takes an fprintf()-like callback and a
FILE * to pass to it.

Its only caller hmp_trace_file() passes monitor_fprintf() and the
current monitor cast to FILE *.  monitor_fprintf() casts it right
back, and is otherwise identical to monitor_printf().  The
type-punning is ugly.

Drop the callback, and call qemu_printf() instead.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190417191805.28198-3-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2019-04-17 21:17:50 +02:00
parent 15ce35fcf1
commit ba4912cb0d
3 changed files with 6 additions and 5 deletions
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2
monitor.c
View File

@ -1056,7 +1056,7 @@ static void hmp_trace_file(Monitor *mon, const QDict *qdict)
const char *arg = qdict_get_try_str(qdict, "arg");
if (!op) {
st_print_trace_file_status((FILE *)mon, &monitor_fprintf);
st_print_trace_file_status();
} else if (!strcmp(op, "on")) {
st_set_trace_file_enabled(true);
} else if (!strcmp(op, "off")) {

7
trace/simple.c
View File

@ -16,6 +16,7 @@
#include "trace/control.h"
#include "trace/simple.h"
#include "qemu/error-report.h"
#include "qemu/qemu-print.h"
/** Trace file header event ID, picked to avoid conflict with real event IDs */
#define HEADER_EVENT_ID (~(uint64_t)0)
@ -363,10 +364,10 @@ void st_set_trace_file(const char *file)
st_set_trace_file_enabled(true);
}
void st_print_trace_file_status(FILE *stream, int (*stream_printf)(FILE *stream, const char *fmt, ...))
void st_print_trace_file_status(void)
{
stream_printf(stream, "Trace file \"%s\" %s.\n",
trace_file_name, trace_fp ? "on" : "off");
qemu_printf("Trace file \"%s\" %s.\n",
trace_file_name, trace_fp ? "on" : "off");
}
void st_flush_trace_buffer(void)

2
trace/simple.h
View File

@ -11,7 +11,7 @@
#ifndef TRACE_SIMPLE_H
#define TRACE_SIMPLE_H
void st_print_trace_file_status(FILE *stream, fprintf_function stream_printf);
void st_print_trace_file_status(void);
void st_set_trace_file_enabled(bool enable);
void st_set_trace_file(const char *file);
bool st_init(void);