#ifndef QEMU_LOG_H
#define QEMU_LOG_H

#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include "qemu/compiler.h"
#include "qom/cpu.h"

/* Private global variables, don't use */
extern FILE *qemu_logfile;
extern int qemu_loglevel;

/* 
 * The new API:
 *
 */

/* Log settings checking macros: */

/* Returns true if qemu_log() will really write somewhere
 */
static inline bool qemu_log_enabled(void)
{
    return qemu_logfile != NULL;
}

#define CPU_LOG_TB_OUT_ASM (1 << 0)
#define CPU_LOG_TB_IN_ASM  (1 << 1)
#define CPU_LOG_TB_OP      (1 << 2)
#define CPU_LOG_TB_OP_OPT  (1 << 3)
#define CPU_LOG_INT        (1 << 4)
#define CPU_LOG_EXEC       (1 << 5)
#define CPU_LOG_PCALL      (1 << 6)
#define CPU_LOG_IOPORT     (1 << 7)
#define CPU_LOG_TB_CPU     (1 << 8)
#define CPU_LOG_RESET      (1 << 9)
#define LOG_UNIMP          (1 << 10)
#define LOG_GUEST_ERROR    (1 << 11)

/* Returns true if a bit is set in the current loglevel mask
 */
static inline bool qemu_loglevel_mask(int mask)
{
    return (qemu_loglevel & mask) != 0;
}

/* Logging functions: */

/* main logging function
 */
void GCC_FMT_ATTR(1, 2) qemu_log(const char *fmt, ...);

/* vfprintf-like logging function
 */
static inline void GCC_FMT_ATTR(1, 0)
qemu_log_vprintf(const char *fmt, va_list va)
{
    if (qemu_logfile) {
        vfprintf(qemu_logfile, fmt, va);
    }
}

/* log only if a bit is set on the current loglevel mask
 */
void GCC_FMT_ATTR(2, 3) qemu_log_mask(int mask, const char *fmt, ...);


/* Special cases: */

/* cpu_dump_state() logging functions: */
/**
 * log_cpu_state:
 * @cpu: The CPU whose state is to be logged.
 * @flags: Flags what to log.
 *
 * Logs the output of cpu_dump_state().
 */
static inline void log_cpu_state(CPUState *cpu, int flags)
{
    if (qemu_log_enabled()) {
        cpu_dump_state(cpu, qemu_logfile, fprintf, flags);
    }
}

/**
 * log_cpu_state_mask:
 * @mask: Mask when to log.
 * @cpu: The CPU whose state is to be logged.
 * @flags: Flags what to log.
 *
 * Logs the output of cpu_dump_state() if loglevel includes @mask.
 */
static inline void log_cpu_state_mask(int mask, CPUState *cpu, int flags)
{
    if (qemu_loglevel & mask) {
        log_cpu_state(cpu, flags);
    }
}

/* fflush() the log file */
static inline void qemu_log_flush(void)
{
    fflush(qemu_logfile);
}

/* Close the log file */
static inline void qemu_log_close(void)
{
    if (qemu_logfile) {
        if (qemu_logfile != stderr) {
            fclose(qemu_logfile);
        }
        qemu_logfile = NULL;
    }
}

#endif