d000b0a32e
This simplifies the logic, prevents emitting code for every pair of argument types to RTC_CHECK_OP and partially unblocks removing streams from the check code altogether. Bug: webrtc:8982 Change-Id: Ib6652ac9a342e4471c12574a79872833cc943407 Reviewed-on: https://webrtc-review.googlesource.com/86544 Commit-Queue: Jonas Olsson <jonasolsson@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#23821}
145 lines
4.1 KiB
C++
145 lines
4.1 KiB
C++
/*
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* Copyright 2006 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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// Most of this was borrowed (with minor modifications) from V8's and Chromium's
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// src/base/logging.cc.
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#include <cstdarg>
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#include <cstdio>
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#include <cstdlib>
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#if defined(WEBRTC_ANDROID)
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#define RTC_LOG_TAG_ANDROID "rtc"
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#include <android/log.h> // NOLINT
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#endif
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#if defined(WEBRTC_WIN)
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#include <windows.h>
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#endif
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#if defined(WEBRTC_WIN)
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#define LAST_SYSTEM_ERROR (::GetLastError())
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#elif defined(__native_client__) && __native_client__
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#define LAST_SYSTEM_ERROR (0)
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#elif defined(WEBRTC_POSIX)
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#include <errno.h>
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#define LAST_SYSTEM_ERROR (errno)
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#endif // WEBRTC_WIN
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#include "rtc_base/checks.h"
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namespace rtc {
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namespace webrtc_checks_impl {
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// Reads one argument from args, appends it to s and advances fmt.
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// Returns true iff an argument was sucessfully parsed.
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bool ParseArg(va_list* args,
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const CheckArgType** fmt,
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std::ostream& s) { // no-presubmit-check TODO(webrtc:8982)
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if (**fmt == CheckArgType::kEnd)
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return false;
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switch (**fmt) {
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case CheckArgType::kInt:
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s << va_arg(*args, int);
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break;
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case CheckArgType::kLong:
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s << va_arg(*args, long);
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break;
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case CheckArgType::kLongLong:
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s << va_arg(*args, long long);
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break;
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case CheckArgType::kUInt:
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s << va_arg(*args, unsigned);
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break;
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case CheckArgType::kULong:
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s << va_arg(*args, unsigned long);
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break;
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case CheckArgType::kULongLong:
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s << va_arg(*args, unsigned long long);
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break;
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case CheckArgType::kDouble:
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s << va_arg(*args, double);
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break;
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case CheckArgType::kLongDouble:
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s << va_arg(*args, long double);
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break;
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case CheckArgType::kCharP:
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s << va_arg(*args, const char*);
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break;
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case CheckArgType::kStdString:
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s << *va_arg(*args, const std::string*);
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break;
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case CheckArgType::kVoidP:
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s << reinterpret_cast<std::uintptr_t>(va_arg(*args, const void*));
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break;
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default:
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s << "[Invalid CheckArgType:" << static_cast<int8_t>(**fmt) << "]";
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return false;
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}
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(*fmt)++;
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return true;
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}
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RTC_NORETURN void FatalLog(const char* file,
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int line,
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const char* message,
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const CheckArgType* fmt,
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...) {
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va_list args;
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va_start(args, fmt);
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std::ostringstream ss; // no-presubmit-check TODO(webrtc:8982)
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ss << "\n\n#\n# Fatal error in: " << file << ", line " << line
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<< "\n# last system error: " << LAST_SYSTEM_ERROR << "\n# Check failed: ";
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if (*fmt == CheckArgType::kCheckOp) {
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// This log message was generated by RTC_CHECK_OP, so we have to complete
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// the error message using the operands that have been passed as the first
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// two arguments.
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fmt++;
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std::ostringstream s1, s2; // no-presubmit-check TODO(webrtc:8982)
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if (ParseArg(&args, &fmt, s1) && ParseArg(&args, &fmt, s2))
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ss << message << " (" << s1.str() << " vs. " << s2.str() << ")\n# ";
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} else {
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ss << message << "\n# ";
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}
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// Append all the user-supplied arguments to the message.
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while (ParseArg(&args, &fmt, ss))
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;
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va_end(args);
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std::string s = ss.str();
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const char* output = s.c_str();
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#if defined(WEBRTC_ANDROID)
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__android_log_print(ANDROID_LOG_ERROR, RTC_LOG_TAG_ANDROID, "%s\n", output);
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#endif
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fflush(stdout);
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fprintf(stderr, "%s", output);
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fflush(stderr);
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abort();
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}
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} // namespace webrtc_checks_impl
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} // namespace rtc
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// Function to call from the C version of the RTC_CHECK and RTC_DCHECK macros.
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RTC_NORETURN void rtc_FatalMessage(const char* file, int line,
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const char* msg) {
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static constexpr rtc::webrtc_checks_impl::CheckArgType t[] = {
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rtc::webrtc_checks_impl::CheckArgType::kEnd};
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FatalLog(file, line, msg, t);
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}
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