111 lines
4.0 KiB
C
111 lines
4.0 KiB
C
/*
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*
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* Copyright 2015, Google Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef GRPC_IMPL_CODEGEN_LOG_H
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#define GRPC_IMPL_CODEGEN_LOG_H
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#include <stdarg.h>
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#include <stdlib.h> /* for abort() */
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#include <grpc/impl/codegen/port_platform.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* GPR log API.
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Usage (within grpc):
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int argument1 = 3;
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char* argument2 = "hello";
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gpr_log(GPR_DEBUG, "format string %d", argument1);
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gpr_log(GPR_INFO, "hello world");
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gpr_log(GPR_ERROR, "%d %s!!", argument1, argument2); */
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/* The severity of a log message - use the #defines below when calling into
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gpr_log to additionally supply file and line data */
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typedef enum gpr_log_severity {
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GPR_LOG_SEVERITY_DEBUG,
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GPR_LOG_SEVERITY_INFO,
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GPR_LOG_SEVERITY_ERROR
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} gpr_log_severity;
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/* Returns a string representation of the log severity */
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const char *gpr_log_severity_string(gpr_log_severity severity);
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/* Macros to build log contexts at various severity levels */
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#define GPR_DEBUG __FILE__, __LINE__, GPR_LOG_SEVERITY_DEBUG
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#define GPR_INFO __FILE__, __LINE__, GPR_LOG_SEVERITY_INFO
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#define GPR_ERROR __FILE__, __LINE__, GPR_LOG_SEVERITY_ERROR
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/* Log a message. It's advised to use GPR_xxx above to generate the context
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* for each message */
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GPRAPI void gpr_log(const char *file, int line, gpr_log_severity severity,
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const char *format, ...);
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GPRAPI void gpr_log_message(const char *file, int line,
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gpr_log_severity severity, const char *message);
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/* Log overrides: applications can use this API to intercept logging calls
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and use their own implementations */
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typedef struct {
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const char *file;
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int line;
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gpr_log_severity severity;
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const char *message;
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} gpr_log_func_args;
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typedef void (*gpr_log_func)(gpr_log_func_args *args);
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GPRAPI void gpr_set_log_function(gpr_log_func func);
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/* abort() the process if x is zero, having written a line to the log.
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Intended for internal invariants. If the error can be recovered from,
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without the possibility of corruption, or might best be reflected via
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an exception in a higher-level language, consider returning error code. */
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#define GPR_ASSERT(x) \
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do { \
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if (!(x)) { \
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gpr_log(GPR_ERROR, "assertion failed: %s", #x); \
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abort(); \
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} \
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} while (0)
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#ifdef __cplusplus
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}
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#endif
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#endif /* GRPC_IMPL_CODEGEN_LOG_H */
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