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cb8ac1f331
This commit adds the src/trace directory containing the basics for our tracing subsystem. It is not used in the code base. The "src/trace/debug.h" file contains an example on how we can map our tor trace events to log_debug(). The tracing subsystem can only be enabled by tracing framework at compile time. This commit introduces the "--enable-tracing-debug" option that will make all "tor_trace()" function be maped to "log_debug()". Closes #13802 Signed-off-by: David Goulet <dgoulet@torproject.org>
25 lines
848 B
C
25 lines
848 B
C
/* Copyright (c) 2017, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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#ifndef TOR_TRACE_LOG_DEBUG_H
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#define TOR_TRACE_LOG_DEBUG_H
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#include "torlog.h"
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/* Stringify pre-processor trick. */
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#define XSTR(d) STR(d)
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#define STR(s) #s
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/* Send every event to a debug log level. This is useful to debug new trace
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* events without implementing them for a specific event tracing framework.
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* Note that the arguments are ignored since at this step we do not know the
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* types and amount there is. */
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/* Example on how to map a tracepoint to log_debug(). */
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#undef tor_trace
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#define tor_trace(subsystem, name, args...) \
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log_debug(LD_GENERAL, "Trace event \"" XSTR(name) "\" from " \
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"\"" XSTR(subsystem) "\" hit. " \
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"(line "XSTR(__LINE__) ")")
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#endif /* TOR_TRACE_LOG_DEBUG_H */
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