158 lines
3.9 KiB
C
158 lines
3.9 KiB
C
/*
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* Copyright © 2012 Martin Minarik
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/time.h>
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#include <time.h>
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#include <wayland-util.h>
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#include <libweston/libweston.h>
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#include "weston-log-internal.h"
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/**
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* \defgroup wlog weston-logging
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*/
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static int
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default_log_handler(const char *fmt, va_list ap);
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/** Needs to be set, defaults to default_log_handler
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*
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* \ingroup wlog
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*/
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static log_func_t log_handler = default_log_handler;
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/** Needs to be set, defaults to default_log_handler
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*
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* \ingroup wlog
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*/
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static log_func_t log_continue_handler = default_log_handler;
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/** Sentinel log message handler
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*
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* This function is used as the default handler for log messages. It
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* exists only to issue a noisy reminder to the user that a real handler
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* must be installed prior to issuing logging calls. The process is
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* immediately aborted after the reminder is printed.
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*
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* \param fmt The format string. Ignored.
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* \param ap The variadic argument list. Ignored.
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*
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* \ingroup wlog
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*/
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static int
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default_log_handler(const char *fmt, va_list ap)
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{
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fprintf(stderr, "weston_log_set_handler() must be called before using of weston_log().\n");
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abort();
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}
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/** Install the log handler
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*
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* The given functions will be called to output text as passed to the
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* \a weston_log and \a weston_log_continue functions.
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*
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* \param log The log function. This function will be called when
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* \a weston_log is called, and should begin a new line,
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* with user defined line headers, if any.
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* \param cont The continue log function. This function will be called
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* when \a weston_log_continue is called, and should append
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* its output to the current line, without any header or
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* other content in between.
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*
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* \ingroup wlog
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*/
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WL_EXPORT void
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weston_log_set_handler(log_func_t log, log_func_t cont)
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{
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log_handler = log;
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log_continue_handler = cont;
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}
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/** weston_vlog calls log_handler
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* \ingroup wlog
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*/
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WL_EXPORT int
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weston_vlog(const char *fmt, va_list ap)
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{
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return log_handler(fmt, ap);
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}
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/** printf() equivalent in weston compositor.
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*
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* \rststar
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* .. note::
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*
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* Needs :var:`log_handler` to be set-up!
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* \endrststar
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*
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* \ingroup wlog
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*/
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WL_EXPORT int
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weston_log(const char *fmt, ...)
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{
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int l;
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va_list argp;
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va_start(argp, fmt);
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l = weston_vlog(fmt, argp);
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va_end(argp);
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return l;
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}
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/** weston_vlog_continue calls log_continue_handler
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*
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* \ingroup wlog
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*/
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WL_EXPORT int
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weston_vlog_continue(const char *fmt, va_list argp)
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{
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return log_continue_handler(fmt, argp);
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}
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/** weston_log_continue
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*
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* \ingroup wlog
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*/
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WL_EXPORT int
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weston_log_continue(const char *fmt, ...)
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{
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int l;
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va_list argp;
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va_start(argp, fmt);
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l = weston_vlog_continue(fmt, argp);
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va_end(argp);
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return l;
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}
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