Lesson 35 - Get Compute Auth Token Working
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#ifndef AWS_COMMON_LOG_CHANNEL_H
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#define AWS_COMMON_LOG_CHANNEL_H
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/**
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* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
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* SPDX-License-Identifier: Apache-2.0.
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*/
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#include <aws/common/common.h>
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#include <aws/common/logging.h>
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AWS_PUSH_SANE_WARNING_LEVEL
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struct aws_string;
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struct aws_log_writer;
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/*
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* Log channel interface and default implementations
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*
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* A log channel is an abstraction for the transfer of formatted log data between a source (formatter)
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* and a sink (writer).
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*/
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struct aws_log_channel;
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typedef int(aws_log_channel_send_fn)(struct aws_log_channel *channel, struct aws_string *output);
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typedef void(aws_log_channel_clean_up_fn)(struct aws_log_channel *channel);
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struct aws_log_channel_vtable {
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aws_log_channel_send_fn *send;
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aws_log_channel_clean_up_fn *clean_up;
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};
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struct aws_log_channel {
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struct aws_log_channel_vtable *vtable;
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struct aws_allocator *allocator;
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struct aws_log_writer *writer;
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void *impl;
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};
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AWS_EXTERN_C_BEGIN
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/*
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* Simple channel that results in log lines being written in the same thread they were generated in.
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*
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* The passed in log writer is not an ownership transfer. The log channel does not clean up the writer.
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*/
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AWS_COMMON_API
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int aws_log_channel_init_foreground(
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struct aws_log_channel *channel,
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struct aws_allocator *allocator,
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struct aws_log_writer *writer);
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/*
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* Simple channel that sends log lines to a background thread.
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*
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* The passed in log writer is not an ownership transfer. The log channel does not clean up the writer.
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*/
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AWS_COMMON_API
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int aws_log_channel_init_background(
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struct aws_log_channel *channel,
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struct aws_allocator *allocator,
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struct aws_log_writer *writer);
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/*
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* Channel cleanup function
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*/
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AWS_COMMON_API
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void aws_log_channel_clean_up(struct aws_log_channel *channel);
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AWS_EXTERN_C_END
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AWS_POP_SANE_WARNING_LEVEL
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#endif /* AWS_COMMON_LOG_CHANNEL_H */
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