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https://github.com/bytecodealliance/wasm-micro-runtime.git
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103 lines
2.0 KiB
C
103 lines
2.0 KiB
C
/*
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* Copyright (C) 2019 Intel Corporation. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "wasm_log.h"
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#include "wasm_platform_log.h"
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#include "wasm_thread.h"
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/**
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* The verbose level of the log system. Only those verbose logs whose
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* levels are less than or equal to this value are outputed.
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*/
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static int log_verbose_level;
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/**
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* The lock for protecting the global output stream of logs.
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*/
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static korp_mutex log_stream_lock;
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int
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_wasm_log_init ()
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{
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log_verbose_level = 1;
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return ws_mutex_init (&log_stream_lock, false);
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}
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void
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_wasm_log_set_verbose_level (int level)
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{
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log_verbose_level = level;
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}
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bool
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_wasm_log_begin (int level)
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{
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korp_tid self;
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if (level > log_verbose_level) {
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return false;
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}
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/* Try to own the log stream and start the log output. */
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ws_mutex_lock (&log_stream_lock);
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self = ws_self_thread ();
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wasm_printf ("[%X]: ", (int)self);
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return true;
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}
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void
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_wasm_log_vprintf (const char *fmt, va_list ap)
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{
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wasm_vprintf (fmt, ap);
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}
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void
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_wasm_log_printf (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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_wasm_log_vprintf (fmt, ap);
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va_end (ap);
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}
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void
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_wasm_log_end ()
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{
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ws_mutex_unlock (&log_stream_lock);
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}
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void
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_wasm_log (int level, const char *file, int line,
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const char *fmt, ...)
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{
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if (_wasm_log_begin (level)) {
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va_list ap;
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if (file)
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_wasm_log_printf ("%s:%d ", file, line);
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va_start (ap, fmt);
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_wasm_log_vprintf (fmt, ap);
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va_end (ap);
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_wasm_log_end ();
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}
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}
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