cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
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fuse_log.h (1938B)

      1/*
      2 * FUSE: Filesystem in Userspace
      3 * Copyright (C) 2019  Red Hat, Inc.
      4 *
      5 * This program can be distributed under the terms of the GNU LGPLv2.
      6 * See the file COPYING.LIB.
      7 */
      8
      9#ifndef FUSE_LOG_H_
     10#define FUSE_LOG_H_
     11
     12/** @file
     13 *
     14 * This file defines the logging interface of FUSE
     15 */
     16
     17
     18/**
     19 * Log severity level
     20 *
     21 * These levels correspond to syslog(2) log levels since they are widely used.
     22 */
     23enum fuse_log_level {
     24    FUSE_LOG_EMERG,
     25    FUSE_LOG_ALERT,
     26    FUSE_LOG_CRIT,
     27    FUSE_LOG_ERR,
     28    FUSE_LOG_WARNING,
     29    FUSE_LOG_NOTICE,
     30    FUSE_LOG_INFO,
     31    FUSE_LOG_DEBUG
     32};
     33
     34/**
     35 * Log message handler function.
     36 *
     37 * This function must be thread-safe.  It may be called from any libfuse
     38 * function, including fuse_parse_cmdline() and other functions invoked before
     39 * a FUSE filesystem is created.
     40 *
     41 * Install a custom log message handler function using fuse_set_log_func().
     42 *
     43 * @param level log severity level
     44 * @param fmt sprintf-style format string including newline
     45 * @param ap format string arguments
     46 */
     47typedef void (*fuse_log_func_t)(enum fuse_log_level level, const char *fmt,
     48                                va_list ap);
     49
     50/**
     51 * Install a custom log handler function.
     52 *
     53 * Log messages are emitted by libfuse functions to report errors and debug
     54 * information.  Messages are printed to stderr by default but this can be
     55 * overridden by installing a custom log message handler function.
     56 *
     57 * The log message handler function is global and affects all FUSE filesystems
     58 * created within this process.
     59 *
     60 * @param func a custom log message handler function or NULL to revert to
     61 *             the default
     62 */
     63void fuse_set_log_func(fuse_log_func_t func);
     64
     65/**
     66 * Emit a log message
     67 *
     68 * @param level severity level (FUSE_LOG_ERR, FUSE_LOG_DEBUG, etc)
     69 * @param fmt sprintf-style format string including newline
     70 */
     71void fuse_log(enum fuse_log_level level, const char *fmt, ...);
     72
     73#endif /* FUSE_LOG_H_ */