Parse buffer lines
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@ -1,11 +1,13 @@
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#include <climits>
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#include <cstring>
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#include <optional>
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#include <stdexcept>
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#include "logcat_entry.h"
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#include "pcre2_wrapper.h"
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const Pcre2Regex LogcatEntryRegex("^\\s*(\\d+)(?:\\.\\d+)?(?:\\s+([\\w\\d._-]+))?\\s+(\\d+)\\s+(\\d+)\\s+([A-Z])\\s+(.+?)\\s*:\\s(.*)$");
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static const Pcre2Regex LogcatEntryRegex("^\\s*(\\d+)(?:\\.\\d+)?(?:\\s+([\\w\\d._-]+))?\\s+(\\d+)\\s+(\\d+)\\s+([A-Z])\\s+(.+?)\\s*:\\s(.*)$");
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static const Pcre2Regex BufferRegex("^--------- (?:beginning of|switch to) (\\w+)$");
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Priority priority_from(char c) {
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switch (c) {
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@ -99,3 +101,29 @@ std::optional<LogcatEntry> try_parse_logcat_entry(char* buf, size_t length, Buff
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};
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return std::move(logcat_entry);
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}
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static bool substr_equal(const char* lhs_str, size_t lhs_length, const char* rhs_str) {
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return lhs_length == strlen(rhs_str) && memcmp(lhs_str, rhs_str, lhs_length * sizeof(char)) == 0;
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}
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std::optional<Buffer> try_parse_buffer(char* buf, size_t length) {
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regmatch_t matches[2];
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matches[0].rm_so = 0;
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matches[0].rm_eo = static_cast<regoff_t>(length);
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if (static_cast<size_t>(matches[0].rm_eo) != length) {
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throw std::range_error("Buffer line too long for int");
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}
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if (!BufferRegex.match(buf, sizeof(matches) / sizeof(regmatch_t), matches, REG_STARTEND)) {
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return std::nullopt;
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}
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const char* buffer_str = &buf[matches[1].rm_so];
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size_t buffer_length = static_cast<size_t>(matches[1].rm_eo - matches[1].rm_so);
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if (substr_equal(buffer_str, buffer_length, "main")) return Buffer::Main;
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if (substr_equal(buffer_str, buffer_length, "system")) return Buffer::System;
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if (substr_equal(buffer_str, buffer_length, "radio")) return Buffer::Radio;
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if (substr_equal(buffer_str, buffer_length, "events")) return Buffer::Events;
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if (substr_equal(buffer_str, buffer_length, "crash")) return Buffer::Crash;
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return Buffer::Unknown;
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}
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@ -37,3 +37,4 @@ Priority priority_from(char c);
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const char* priority_to(Priority priority);
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const char* buffer_to(Buffer buffer);
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std::optional<LogcatEntry> try_parse_logcat_entry(char* buf, size_t length, Buffer buffer);
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std::optional<Buffer> try_parse_buffer(char* buf, size_t length);
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@ -162,7 +162,7 @@ void LogcatThread::_handle_line(char* buf, size_t length, bool is_stdout) {
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std::optional<LogcatEntry> logcat_entry;
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try {
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logcat_entry = try_parse_logcat_entry(buf, length, Buffer::Unknown);
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logcat_entry = try_parse_logcat_entry(buf, length, this->_current_buffer);
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} catch (const std::exception& e) {
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std::string log_entry = format_log(std::string("Failed to parse logcat entry: ") + e.what());
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printf("%s\n", log_entry.c_str());
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@ -172,7 +172,18 @@ void LogcatThread::_handle_line(char* buf, size_t length, bool is_stdout) {
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this->atomic_ring_buffer.put_and_increment_write(std::move(*logcat_entry));
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return;
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}
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// TODO handle buffers
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std::optional<Buffer> new_buffer;
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try {
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new_buffer = try_parse_buffer(buf, length);
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} catch (const std::exception& e) {
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std::string log_entry = format_log(std::string("Failed to parse buffer line: ") + e.what());
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printf("%s\n", log_entry.c_str());
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this->atomic_ring_buffer.put_and_increment_write(std::move(log_entry));
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}
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if (new_buffer) {
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this->_current_buffer = *new_buffer;
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return;
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}
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std::string log_entry = format_log(std::string("Cannot parse logcat stdout: ") + std::string(buf, length));
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printf("%s\n", log_entry.c_str());
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@ -38,6 +38,7 @@ private:
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size_t _stdout_buf_used = 0;
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char _stderr_buf[NEWLINE_BUF_SIZE];
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size_t _stderr_buf_used = 0;
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Buffer _current_buffer = Buffer::Unknown;
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std::stop_source _stop_source;
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std::thread _thread;
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};
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