115 lines
2.8 KiB
C
115 lines
2.8 KiB
C
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/*
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* Copyright (c) 2019 - 2022 Andri Yngvason
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "neatvnc.h"
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#include "common.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#define EXPORT __attribute__((visibility("default")))
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static void default_logger(const struct nvnc_log_data* meta,
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const char* message);
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static nvnc_log_fn log_fn = default_logger;
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#ifndef NDEBUG
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static enum nvnc_log_level log_level = NVNC_LOG_DEBUG;
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#else
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static enum nvnc_log_level log_level = NVNC_LOG_WARNING;
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#endif
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static const char* log_level_to_string(enum nvnc_log_level level)
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{
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switch (level) {
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case NVNC_LOG_PANIC: return "PANIC";
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case NVNC_LOG_ERROR: return "ERROR";
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case NVNC_LOG_WARNING: return "Warning";
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case NVNC_LOG_INFO: return "Info";
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case NVNC_LOG_DEBUG: return "DEBUG";
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case NVNC_LOG_TRACE: return "TRACE";
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}
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return "UNKNOWN";
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}
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static FILE* stream_for_log_level(enum nvnc_log_level level)
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{
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switch (level) {
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case NVNC_LOG_PANIC: return stderr;
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case NVNC_LOG_ERROR: return stderr;
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case NVNC_LOG_WARNING: return stderr;
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case NVNC_LOG_INFO: return stdout;
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case NVNC_LOG_DEBUG: return stdout;
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case NVNC_LOG_TRACE: return stdout;
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}
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return stderr;
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}
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static void nvnc__vlog(const struct nvnc_log_data* meta, const char* fmt,
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va_list args)
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{
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char message[1024];
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if (meta->level <= log_level) {
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vsnprintf(message, sizeof(message), fmt, args);
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log_fn(meta, message);
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}
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if (meta->level == NVNC_LOG_PANIC)
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abort();
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}
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static void default_logger(const struct nvnc_log_data* meta,
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const char* message)
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{
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const char* level = log_level_to_string(meta->level);
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FILE* stream = stream_for_log_level(meta->level);
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if (meta->level == NVNC_LOG_INFO)
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fprintf(stream, "Info: %s\n", message);
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else
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fprintf(stream, "%s: %s: %d: %s\n", level, meta->file,
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meta->line, message);
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fflush(stream);
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}
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EXPORT
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void nvnc_set_log_level(enum nvnc_log_level level)
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{
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log_level = level;
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}
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EXPORT
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void nvnc_set_log_fn(nvnc_log_fn fn)
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{
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log_fn = fn;
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}
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EXPORT
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void nvnc__log(const struct nvnc_log_data* meta,
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const char* fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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nvnc__vlog(meta, fmt, ap);
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va_end(ap);
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}
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