The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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103 lines
3.3 KiB
103 lines
3.3 KiB
/* |
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* |
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* Copyright 2015 gRPC authors. |
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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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*/ |
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#ifndef GRPC_SUPPORT_LOG_H |
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#define GRPC_SUPPORT_LOG_H |
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#include <inttypes.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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#define GPR_LOG_VERBOSITY_UNSET -1 |
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/** Returns a string representation of the log severity */ |
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GPRAPI 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, ...) GPR_PRINT_FORMAT_CHECK(4, 5); |
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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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/** Set global log verbosity */ |
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GPRAPI void gpr_set_log_verbosity(gpr_log_severity min_severity_to_print); |
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GPRAPI void gpr_log_verbosity_init(void); |
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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_SUPPORT_LOG_H */
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