67 lines
1.8 KiB
C++
67 lines
1.8 KiB
C++
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// Copyright 2021 The Crashpad Authors. All rights reserved.
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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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#include "util/ios/raw_logging.h"
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#include <string.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "base/posix/eintr_wrapper.h"
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namespace crashpad {
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namespace internal {
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void RawLogString(const char* message) {
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const size_t message_len = strlen(message);
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size_t bytes_written = 0;
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while (bytes_written < message_len) {
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int rv = HANDLE_EINTR(write(
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STDERR_FILENO, message + bytes_written, message_len - bytes_written));
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if (rv < 0) {
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// Give up, nothing we can do now.
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break;
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}
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bytes_written += rv;
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}
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}
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void RawLogInt(unsigned int number) {
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char buffer[20];
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char* digit = &buffer[sizeof(buffer) - 1];
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*digit = '\0';
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do {
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*(--digit) = (number % 10) + '0';
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number /= 10;
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} while (number != 0);
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RawLogString(digit);
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}
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// Prints `path:linenum message:error` (with optional `:error`).
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void RawLog(const char* file, int line, const char* message, int error) {
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RawLogString(file);
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HANDLE_EINTR(write(STDERR_FILENO, ":", 1));
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RawLogInt(line);
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HANDLE_EINTR(write(STDERR_FILENO, " ", 1));
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RawLogString(message);
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if (error) {
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RawLogString(": ");
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RawLogInt(error);
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}
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HANDLE_EINTR(write(STDERR_FILENO, "\n", 1));
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}
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} // namespace internal
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} // namespace crashpad
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