fix(logger): add error checks and size limits to prevent file corruption #5
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Hey - 我发现了 1 个问题，并给出了一些总体反馈：
- 在
LogStream中，在调用stdout_string()之前就把buffer_移动到content中，有可能会让stdout_string()遇到一个空或无效的缓冲区；建议将std::move(buffer_)延后到所有对buffer_的使用（例如 stdout 输出）完成之后再进行。 - 在截断
content时，substr(0, 1024)中硬编码的1024与kMaxLogSize不一致；请始终使用kMaxLogSize（或一个专门的常量），以避免在限制更新时出现不一致。
给 AI Agent 的提示
Please address the comments from this code review:
## Overall Comments
- In `LogStream`, moving `buffer_` into `content` before calling `stdout_string()` risks leaving `stdout_string()` with an empty/invalid buffer; consider deferring the `std::move(buffer_)` until after any uses of `buffer_` (e.g., for stdout output).
- When truncating `content`, the hardcoded `1024` in `substr(0, 1024)` does not match `kMaxLogSize`; use `kMaxLogSize` (or a dedicated constant) consistently to avoid discrepancies if the limit is updated.
## Individual Comments
### Comment 1
<location> `include/MaaUtils/LoggerUtils.h:76-85` </location>
<code_context>
{
std::unique_lock lock(mutex_);
+ auto content = std::move(buffer_).str();
+
+ // Prevent writing excessive data (likely a bug if > 1MB)
+ constexpr size_t kMaxLogSize = 1024 * 1024; // 1MB
+ if (content.size() > kMaxLogSize) {
+ content = content.substr(0, 1024) +
+ std::format(" ... [TRUNCATED: {} bytes total, likely a bug - check for large objects passed to logger]",
+ content.size());
+ }
+
if (stdout_) {
std::cout << stdout_string() << std::endl;
}
</code_context>
<issue_to_address>
**issue (bug_risk):** Moving from buffer_ before stdout_ logging likely breaks stdout output
`stdout_string()` likely reads from `buffer_`, but `buffer_` has already been moved-from when constructing `content`, so stdout may log empty/invalid data while the file gets the correct `content`. Please either build `content` without moving (e.g. `buffer_.str()`) or have both stdout and file output use `content` instead of `buffer_`.
</issue_to_address>帮我变得更有用！请对每条评论点 👍 或 👎，我会根据你的反馈改进后续的评审。
Original comment in English
Hey - I've found 1 issue, and left some high level feedback:
- In
LogStream, movingbuffer_intocontentbefore callingstdout_string()risks leavingstdout_string()with an empty/invalid buffer; consider deferring thestd::move(buffer_)until after any uses ofbuffer_(e.g., for stdout output). - When truncating
content, the hardcoded1024insubstr(0, 1024)does not matchkMaxLogSize; usekMaxLogSize(or a dedicated constant) consistently to avoid discrepancies if the limit is updated.
Prompt for AI Agents
Please address the comments from this code review:
## Overall Comments
- In `LogStream`, moving `buffer_` into `content` before calling `stdout_string()` risks leaving `stdout_string()` with an empty/invalid buffer; consider deferring the `std::move(buffer_)` until after any uses of `buffer_` (e.g., for stdout output).
- When truncating `content`, the hardcoded `1024` in `substr(0, 1024)` does not match `kMaxLogSize`; use `kMaxLogSize` (or a dedicated constant) consistently to avoid discrepancies if the limit is updated.
## Individual Comments
### Comment 1
<location> `include/MaaUtils/LoggerUtils.h:76-85` </location>
<code_context>
{
std::unique_lock lock(mutex_);
+ auto content = std::move(buffer_).str();
+
+ // Prevent writing excessive data (likely a bug if > 1MB)
+ constexpr size_t kMaxLogSize = 1024 * 1024; // 1MB
+ if (content.size() > kMaxLogSize) {
+ content = content.substr(0, 1024) +
+ std::format(" ... [TRUNCATED: {} bytes total, likely a bug - check for large objects passed to logger]",
+ content.size());
+ }
+
if (stdout_) {
std::cout << stdout_string() << std::endl;
}
</code_context>
<issue_to_address>
**issue (bug_risk):** Moving from buffer_ before stdout_ logging likely breaks stdout output
`stdout_string()` likely reads from `buffer_`, but `buffer_` has already been moved-from when constructing `content`, so stdout may log empty/invalid data while the file gets the correct `content`. Please either build `content` without moving (e.g. `buffer_.str()`) or have both stdout and file output use `content` instead of `buffer_`.
</issue_to_address>Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
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@sourcery-ai review |
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Hey - 我发现了 1 个问题，并且给出了一些高层次的反馈：
- 在
LogStream中使用std::format会引入对 C++20 的依赖，并在高频日志路径上增加一个可能抛异常的点；建议要么显式包含<format>并将调用包在try/catch中（避免异常向外逃出日志器），要么使用不会抛异常的格式化替代方案。 - 在
Logger::open中，当fopen失败时，你只写了一条信息到stderr然后直接返回；更安全的做法可能是显式地把 logger 标记为已禁用，或者确保后续对ofs_的所有使用都有防护，这样日志调用就不会在静默的前提下假设流一定有效。
给 AI 代理的提示
Please address the comments from this code review:
## Overall Comments
- 在 `LogStream` 中使用 `std::format` 会引入对 C++20 的依赖，并在高频日志路径上增加一个可能抛异常的点；建议要么显式包含 `<format>` 并将调用包在 `try`/`catch` 中（避免异常向外逃出日志器），要么使用不会抛异常的格式化替代方案。
- 在 `Logger::open` 中，当 `fopen` 失败时，你只写了一条信息到 `stderr` 然后直接返回；更安全的做法可能是显式地把 logger 标记为已禁用，或者确保后续对 `ofs_` 的所有使用都有防护，这样日志调用就不会在静默的前提下假设流一定有效。
## Individual Comments
### Comment 1
<location> `include/MaaUtils/LoggerUtils.h:76-82` </location>
<code_context>
{
std::unique_lock lock(mutex_);
+ // Output to stdout first (while buffer_ is still valid)
if (stdout_) {
std::cout << stdout_string() << std::endl;
}
- stream_ << std::move(buffer_).str() << std::endl;
+
+ // Now get content and apply size limit
+ auto content = std::move(buffer_).str();
+
+ // Prevent writing excessive data (likely a bug if > 1MB)
</code_context>
<issue_to_address>
**question (bug_risk):** Large log entries are still fully written to stdout even when truncated for the main stream.
Size limit 目前只应用在 `stream_` 上；`stdout_` 仍然会接收到完整的 `stdout_string()` 内容。如果目标是避免在任何地方输出非常大的负载，建议对 stdout 也应用同样的限制，或者说明为什么 stdout 是有意不受限制的。按当前实现，同一次日志调用仍然可能淹没 stdout，而文件日志却只写入被截断后的内容。
</issue_to_address>帮我变得更有用！请在每条评论上点 👍 或 👎，我会根据你的反馈改进后续评审。
Original comment in English
Hey - I've found 1 issue, and left some high level feedback:
- Using
std::formatinLogStreamintroduces a C++20 dependency and a potential throw point in a hot logging path; consider either including<format>explicitly and wrapping the call in atry/catch(to avoid exceptions escaping the logger) or using a non-throwing formatting alternative. - In
Logger::open, whenfopenfails you only write tostderrand return; it may be safer to explicitly mark the logger as disabled or ensure all later uses ofofs_are guarded so that logging calls don’t silently assume a valid stream.
Prompt for AI Agents
Please address the comments from this code review:
## Overall Comments
- Using `std::format` in `LogStream` introduces a C++20 dependency and a potential throw point in a hot logging path; consider either including `<format>` explicitly and wrapping the call in a `try`/`catch` (to avoid exceptions escaping the logger) or using a non-throwing formatting alternative.
- In `Logger::open`, when `fopen` fails you only write to `stderr` and return; it may be safer to explicitly mark the logger as disabled or ensure all later uses of `ofs_` are guarded so that logging calls don’t silently assume a valid stream.
## Individual Comments
### Comment 1
<location> `include/MaaUtils/LoggerUtils.h:76-82` </location>
<code_context>
{
std::unique_lock lock(mutex_);
+ // Output to stdout first (while buffer_ is still valid)
if (stdout_) {
std::cout << stdout_string() << std::endl;
}
- stream_ << std::move(buffer_).str() << std::endl;
+
+ // Now get content and apply size limit
+ auto content = std::move(buffer_).str();
+
+ // Prevent writing excessive data (likely a bug if > 1MB)
</code_context>
<issue_to_address>
**question (bug_risk):** Large log entries are still fully written to stdout even when truncated for the main stream.
The size limit is only applied to `stream_`; `stdout_` still receives the full `stdout_string()` content. If the goal is to avoid emitting very large payloads anywhere, consider applying the same limit to stdout, or document why stdout is intentionally exempt. As-is, a single log call can still flood stdout while being truncated only in the file log.
</issue_to_address>Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
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|
@sourcery-ai review |
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Hey - 我发现了两个问题，并给出了一些总体反馈：
- 在
LogStream::operator<</flush 中，你先调用一次buffer_.str()来计算content_size，然后又通过std::move(buffer_).str()再调用一次；建议抽取成一次std::string content = std::move(buffer_).str();，然后复用content.size()做大小检查和输出，从而避免双重分配/拷贝。 LogStream内部硬编码的kMaxLogSize和kTruncatedSize阈值会让调优变得更难，而且如果在其他地方也需要这些阈值，容易出现不一致；建议把它们提升为类级或文件级常量（或配置项），在单一位置定义、并在各处一致复用。- 当
Logger::open在fopen日志文件时失败，目前只是在stderr打印一条消息然后返回，而不会更新任何状态；建议显式地标记 logger 已不可用（例如清空/关闭ofs_或增加一个is_open_标志），这样后续的日志调用就能可靠地跳过写入，而不是继续使用已经失效的输出流。
给 AI Agent 的提示
Please address the comments from this code review:
## Overall Comments
- In `LogStream::operator<<`/flush, you call `buffer_.str()` once to compute `content_size` and then again via `std::move(buffer_).str()`; consider extracting a single `std::string content = std::move(buffer_).str();` and reusing `content.size()` for both the size checks and output to avoid double allocation/copying.
- The hardcoded `kMaxLogSize` and `kTruncatedSize` thresholds inside `LogStream` make tuning harder and risk divergence if used elsewhere; consider promoting them to class- or file-scope constants (or configuration) so they are defined in one place and can be reused consistently.
- When `Logger::open` fails to `fopen` the log file, it currently just prints to `stderr` and returns without updating any state; consider explicitly marking the logger as unusable (e.g., clearing/closing `ofs_` or tracking an `is_open_` flag) so that subsequent logging calls can reliably skip writes instead of using a stale stream.
## Individual Comments
### Comment 1
<location> `include/MaaUtils/LoggerUtils.h:74-79` </location>
<code_context>
std::unique_lock lock(mutex_);
+ // Check size before any output (temporary copy to check size)
+ const size_t content_size = buffer_.str().size();
+ constexpr size_t kMaxLogSize = 1024 * 1024; // 1MB
+ constexpr size_t kTruncatedSize = 1024; // 1KB
+
+ // Output to stdout (skip if too large to avoid flooding console)
if (stdout_) {
- std::cout << stdout_string() << std::endl;
+ if (content_size > kMaxLogSize) {
+ std::cerr << "[WARNING: Log entry too large (" << content_size
+ << " bytes), skipping stdout output]" << std::endl;
+ } else {
+ std::cout << stdout_string() << std::endl;
+ }
+ }
+
+ // Get content and apply size limit for file
+ auto content = std::move(buffer_).str();
+
+ if (content.size() > kMaxLogSize) {
</code_context>
<issue_to_address>
**suggestion (performance):** Avoid double string construction from stringstream by using its size directly (e.g., tellp) or reusing a single materialized string.
`buffer_.str()` is called twice: once to compute `content_size` and again via `std::move(buffer_).str()`, causing two full allocations/copies for large logs. Since the stream is only written to, you can either rely on `buffer_.tellp()` for the size check, or materialize once into a `std::string` and reuse it for both the stdout size check and file output to avoid extra work on the hot path.
```suggestion
std::unique_lock lock(mutex_);
// Check size before any output without materializing the string
const size_t content_size = static_cast<size_t>(buffer_.tellp());
constexpr size_t kMaxLogSize = 1024 * 1024; // 1MB
constexpr size_t kTruncatedSize = 1024; // 1KB
```
</issue_to_address>
### Comment 2
<location> `source/Logger/Logger.cpp:164-167` </location>
<code_context>
// https://stackoverflow.com/questions/55513974/controlling-inheritability-of-file-handles-created-by-c-stdfstream-in-window
std::string str_log_path = log_path_.string();
FILE* file_ptr = fopen(str_log_path.c_str(), append ? "a" : "w");
+ if (!file_ptr) {
+ // Failed to open file, log to stderr and return
+ std::cerr << "Failed to open log file: " << str_log_path << std::endl;
+ return;
+ }
SetHandleInformation((HANDLE)_get_osfhandle(_fileno(file_ptr)), HANDLE_FLAG_INHERIT, 0);
</code_context>
<issue_to_address>
**issue (bug_risk):** On log file open failure, consider resetting/invalidating the existing output stream to avoid writing to a stale handle.
Right now if `fopen` fails we just log to `stderr` and return, leaving `ofs_` unchanged. If this path is used for log rotation or re-open, the logger may keep writing to the old or an invalid stream. Consider explicitly closing/resetting `ofs_` (and possibly recording a failure state) so callers can detect the error and avoid writing to a stale stream.
</issue_to_address>帮我变得更有用！请对每条评论点 👍 或 👎，我会根据你的反馈持续改进评审质量。
Original comment in English
Hey - I've found 2 issues, and left some high level feedback:
- In
LogStream::operator<</flush, you callbuffer_.str()once to computecontent_sizeand then again viastd::move(buffer_).str(); consider extracting a singlestd::string content = std::move(buffer_).str();and reusingcontent.size()for both the size checks and output to avoid double allocation/copying. - The hardcoded
kMaxLogSizeandkTruncatedSizethresholds insideLogStreammake tuning harder and risk divergence if used elsewhere; consider promoting them to class- or file-scope constants (or configuration) so they are defined in one place and can be reused consistently. - When
Logger::openfails tofopenthe log file, it currently just prints tostderrand returns without updating any state; consider explicitly marking the logger as unusable (e.g., clearing/closingofs_or tracking anis_open_flag) so that subsequent logging calls can reliably skip writes instead of using a stale stream.
Prompt for AI Agents
Please address the comments from this code review:
## Overall Comments
- In `LogStream::operator<<`/flush, you call `buffer_.str()` once to compute `content_size` and then again via `std::move(buffer_).str()`; consider extracting a single `std::string content = std::move(buffer_).str();` and reusing `content.size()` for both the size checks and output to avoid double allocation/copying.
- The hardcoded `kMaxLogSize` and `kTruncatedSize` thresholds inside `LogStream` make tuning harder and risk divergence if used elsewhere; consider promoting them to class- or file-scope constants (or configuration) so they are defined in one place and can be reused consistently.
- When `Logger::open` fails to `fopen` the log file, it currently just prints to `stderr` and returns without updating any state; consider explicitly marking the logger as unusable (e.g., clearing/closing `ofs_` or tracking an `is_open_` flag) so that subsequent logging calls can reliably skip writes instead of using a stale stream.
## Individual Comments
### Comment 1
<location> `include/MaaUtils/LoggerUtils.h:74-79` </location>
<code_context>
std::unique_lock lock(mutex_);
+ // Check size before any output (temporary copy to check size)
+ const size_t content_size = buffer_.str().size();
+ constexpr size_t kMaxLogSize = 1024 * 1024; // 1MB
+ constexpr size_t kTruncatedSize = 1024; // 1KB
+
+ // Output to stdout (skip if too large to avoid flooding console)
if (stdout_) {
- std::cout << stdout_string() << std::endl;
+ if (content_size > kMaxLogSize) {
+ std::cerr << "[WARNING: Log entry too large (" << content_size
+ << " bytes), skipping stdout output]" << std::endl;
+ } else {
+ std::cout << stdout_string() << std::endl;
+ }
+ }
+
+ // Get content and apply size limit for file
+ auto content = std::move(buffer_).str();
+
+ if (content.size() > kMaxLogSize) {
</code_context>
<issue_to_address>
**suggestion (performance):** Avoid double string construction from stringstream by using its size directly (e.g., tellp) or reusing a single materialized string.
`buffer_.str()` is called twice: once to compute `content_size` and again via `std::move(buffer_).str()`, causing two full allocations/copies for large logs. Since the stream is only written to, you can either rely on `buffer_.tellp()` for the size check, or materialize once into a `std::string` and reuse it for both the stdout size check and file output to avoid extra work on the hot path.
```suggestion
std::unique_lock lock(mutex_);
// Check size before any output without materializing the string
const size_t content_size = static_cast<size_t>(buffer_.tellp());
constexpr size_t kMaxLogSize = 1024 * 1024; // 1MB
constexpr size_t kTruncatedSize = 1024; // 1KB
```
</issue_to_address>
### Comment 2
<location> `source/Logger/Logger.cpp:164-167` </location>
<code_context>
// https://stackoverflow.com/questions/55513974/controlling-inheritability-of-file-handles-created-by-c-stdfstream-in-window
std::string str_log_path = log_path_.string();
FILE* file_ptr = fopen(str_log_path.c_str(), append ? "a" : "w");
+ if (!file_ptr) {
+ // Failed to open file, log to stderr and return
+ std::cerr << "Failed to open log file: " << str_log_path << std::endl;
+ return;
+ }
SetHandleInformation((HANDLE)_get_osfhandle(_fileno(file_ptr)), HANDLE_FLAG_INHERIT, 0);
</code_context>
<issue_to_address>
**issue (bug_risk):** On log file open failure, consider resetting/invalidating the existing output stream to avoid writing to a stale handle.
Right now if `fopen` fails we just log to `stderr` and return, leaving `ofs_` unchanged. If this path is used for log rotation or re-open, the logger may keep writing to the old or an invalid stream. Consider explicitly closing/resetting `ofs_` (and possibly recording a failure state) so callers can detect the error and avoid writing to a stale stream.
</issue_to_address>Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
Member
Author
|
@sourcery-ai review |
There was a problem hiding this comment.
Hey - 我发现了 1 个问题，并给出了一些高层面的反馈：
- 在
LogStream::flush中，调用std::move(buffer_).str()依赖于一个已被移动的std::stringstream的状态；更安全、也更清晰的做法是通过auto content = buffer_.str();获取字符串，然后重置 buffer（例如buffer_.str(""); buffer_.clear();）。 - 当通过
buffer_.tellp()推导content_size时，建议处理tellp()返回std::streampos(-1)（失败）的情况，因为当前的static_cast<size_t>会把它变成一个非常大的值，从而错误地触发超大日志分支。
给 AI 代理的提示
Please address the comments from this code review:
## Overall Comments
- In `LogStream::flush`, calling `std::move(buffer_).str()` relies on the state of a moved-from `std::stringstream`; it would be safer and clearer to get the string via `auto content = buffer_.str();` and then reset the buffer (e.g. `buffer_.str(""); buffer_.clear();`).
- When deriving `content_size` from `buffer_.tellp()`, consider handling the case where `tellp()` returns `std::streampos(-1)` (failure), as the current `static_cast<size_t>` could turn this into a very large size and incorrectly trigger the oversized-log path.
## Individual Comments
### Comment 1
<location> `include/MaaUtils/LoggerUtils.h:77` </location>
<code_context>
std::unique_lock lock(mutex_);
+ // Check size before any output without materializing the string
+ const size_t content_size = static_cast<size_t>(buffer_.tellp());
+
+ // Output to stdout (skip if too large to avoid flooding console)
</code_context>
<issue_to_address>
**issue (bug_risk):** Guard against `tellp()` failure before casting to `size_t` for size checks.
`buffer_.tellp()` can return `pos_type(-1)` on failure, which becomes a huge `size_t` and will always trip the "too large" check with an incorrect byte count. Consider capturing the result first and handling errors before casting, e.g.:
```cpp
auto pos = buffer_.tellp();
if (pos < 0) {
// handle failure: skip size check, use content.size(), or treat as error
}
size_t content_size = static_cast<size_t>(pos);
```
At minimum, treat negative positions as an explicit error case instead of casting directly.
</issue_to_address>帮我变得更有用！请在每条评论上点 👍 或 👎，我会根据你的反馈改进后续的评审。
Original comment in English
Hey - I've found 1 issue, and left some high level feedback:
- In
LogStream::flush, callingstd::move(buffer_).str()relies on the state of a moved-fromstd::stringstream; it would be safer and clearer to get the string viaauto content = buffer_.str();and then reset the buffer (e.g.buffer_.str(""); buffer_.clear();). - When deriving
content_sizefrombuffer_.tellp(), consider handling the case wheretellp()returnsstd::streampos(-1)(failure), as the currentstatic_cast<size_t>could turn this into a very large size and incorrectly trigger the oversized-log path.
Prompt for AI Agents
Please address the comments from this code review:
## Overall Comments
- In `LogStream::flush`, calling `std::move(buffer_).str()` relies on the state of a moved-from `std::stringstream`; it would be safer and clearer to get the string via `auto content = buffer_.str();` and then reset the buffer (e.g. `buffer_.str(""); buffer_.clear();`).
- When deriving `content_size` from `buffer_.tellp()`, consider handling the case where `tellp()` returns `std::streampos(-1)` (failure), as the current `static_cast<size_t>` could turn this into a very large size and incorrectly trigger the oversized-log path.
## Individual Comments
### Comment 1
<location> `include/MaaUtils/LoggerUtils.h:77` </location>
<code_context>
std::unique_lock lock(mutex_);
+ // Check size before any output without materializing the string
+ const size_t content_size = static_cast<size_t>(buffer_.tellp());
+
+ // Output to stdout (skip if too large to avoid flooding console)
</code_context>
<issue_to_address>
**issue (bug_risk):** Guard against `tellp()` failure before casting to `size_t` for size checks.
`buffer_.tellp()` can return `pos_type(-1)` on failure, which becomes a huge `size_t` and will always trip the "too large" check with an incorrect byte count. Consider capturing the result first and handling errors before casting, e.g.:
```cpp
auto pos = buffer_.tellp();
if (pos < 0) {
// handle failure: skip size check, use content.size(), or treat as error
}
size_t content_size = static_cast<size_t>(pos);
```
At minimum, treat negative positions as an explicit error case instead of casting directly.
</issue_to_address>Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
Member
Author
|
@sourcery-ai review |
There was a problem hiding this comment.
Hey - 我发现了 1 个问题，并且给出了一些整体性的反馈：
- LogStream 中硬编码的日志大小限制（kMaxLogSize、kTruncatedSize）让行为不够灵活；可以考虑把这些限制接到配置上，或者做成可注入的，这样不同环境就能在不重新编译的情况下调整限制。
- 在写入之前验证文件流时，只检查 stream_.good() 可能会遗漏文件根本没有打开的情况；可以考虑显式检查 stream_.is_open()（或等价方法），并在输出到 stderr 的诊断信息中区分“未打开”和“一般错误”。
给 AI Agent 的提示
Please address the comments from this code review:
## Overall Comments
- LogStream 中硬编码的日志大小限制（kMaxLogSize、kTruncatedSize）让行为不够灵活；可以考虑把这些限制接到配置上，或者做成可注入的，这样不同环境就能在不重新编译的情况下调整限制。
- 在写入之前验证文件流时，只检查 stream_.good() 可能会遗漏文件根本没有打开的情况；可以考虑显式检查 stream_.is_open()（或等价方法），并在输出到 stderr 的诊断信息中区分“未打开”和“一般错误”。
## Individual Comments
### Comment 1
<location> `include/MaaUtils/LoggerUtils.h:78-83` </location>
<code_context>
+ // Check size before any output without materializing the string
+ // Guard against tellp() failure (returns -1 on error)
+ auto pos = buffer_.tellp();
+ size_t content_size = 0;
+ if (pos >= 0) {
+ content_size = static_cast<size_t>(pos);
+ }
+ // If tellp() failed, content_size remains 0 and won't trigger size limit
+
+ // Output to stdout (skip if too large to avoid flooding console)
</code_context>
<issue_to_address>
**issue (bug_risk):** 当 `tellp()` 失败时，建议使用一个回退路径，而不是静默地关闭对 stdout 的大小限制。
如果 `tellp()` 失败，`content_size` 会保持为 0，因此大小保护永远不会触发，并且会抑制超大日志的警告，但此时仍然会调用 `stdout_string()`，可能会实化一个非常大的字符串。请为这种情况增加一个回退逻辑（例如，当 `pos < 0` 时使用 `buffer_.str().size()`，或者至少向 `stderr` 打一条诊断日志），这样可以避免在 `tellp()` 失败时静默绕过保护机制。
</issue_to_address>帮我变得更有用！请在每条评论上点 👍 或 👎，我会利用这些反馈来改进对你代码的审查。
Original comment in English
Hey - I've found 1 issue, and left some high level feedback:
- The hard-coded log size limits (kMaxLogSize, kTruncatedSize) inside LogStream make behavior inflexible; consider wiring them to configuration or making them injectable so different environments can tune limits without recompiling.
- When validating the file stream before writing, checking only stream_.good() may miss cases where the file is simply not open; consider explicitly checking stream_.is_open() (or equivalent) and distinguishing between 'not open' and 'error' in the diagnostic message to stderr.
Prompt for AI Agents
Please address the comments from this code review:
## Overall Comments
- The hard-coded log size limits (kMaxLogSize, kTruncatedSize) inside LogStream make behavior inflexible; consider wiring them to configuration or making them injectable so different environments can tune limits without recompiling.
- When validating the file stream before writing, checking only stream_.good() may miss cases where the file is simply not open; consider explicitly checking stream_.is_open() (or equivalent) and distinguishing between 'not open' and 'error' in the diagnostic message to stderr.
## Individual Comments
### Comment 1
<location> `include/MaaUtils/LoggerUtils.h:78-83` </location>
<code_context>
+ // Check size before any output without materializing the string
+ // Guard against tellp() failure (returns -1 on error)
+ auto pos = buffer_.tellp();
+ size_t content_size = 0;
+ if (pos >= 0) {
+ content_size = static_cast<size_t>(pos);
+ }
+ // If tellp() failed, content_size remains 0 and won't trigger size limit
+
+ // Output to stdout (skip if too large to avoid flooding console)
</code_context>
<issue_to_address>
**issue (bug_risk):** Consider a fallback path when `tellp()` fails instead of silently disabling the stdout size limit.
If `tellp()` fails, `content_size` remains 0, so the size guard never triggers and the oversized-log warning is suppressed, yet `stdout_string()` is still called and may materialize a very large string. Please add a fallback for this case (e.g., use `buffer_.str().size()` when `pos < 0`, or at least log a diagnostic to `stderr`) so `tellp()` failures don’t silently bypass the protection.
</issue_to_address>Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
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Hey - 我发现了 1 个问题，并给出了一些总体反馈：
- 在
LogStream::operator<<中，你多次调用buffer_.str()（一次在tellp()回退分支，一次在生成content时）；建议将该字符串缓存到一个局部变量中，这样大小检查和截断可以复用同一次物化结果，同时避免额外拷贝。 - 新增的大小常量
kMaxLogSize和kTruncatedSize隐含假设kTruncatedSize <= kMaxLogSize；为了避免将来修改时不小心颠倒这一关系，最好通过static_assert显式约束这一条件。 - 日志路径中新加的 stderr 警告/错误（例如针对过大日志项、
tellp()失败以及非法流）在某些环境下可能会非常嘈杂；可以考虑通过调试标志或日志级别检查来进行控制，避免在生产环境中向 stderr 打印过多信息。
面向 AI Agents 的提示
Please address the comments from this code review:
## Overall Comments
- In `LogStream::operator<<`, you call `buffer_.str()` multiple times (once in the `tellp()` fallback and again when materializing `content`); consider caching the string in a local variable so size checks and truncation reuse the same materialization and avoid extra copies.
- The new size constants `kMaxLogSize` and `kTruncatedSize` assume `kTruncatedSize <= kMaxLogSize`; it might be safer to enforce this via a `static_assert` so future changes don't accidentally invert the relationship.
- The new stderr warnings/errors in the log path (e.g., for oversized entries, `tellp()` failure, and invalid streams) may be quite noisy in some environments; consider gating them behind a debug flag or log-level check to reduce potential stderr flooding in production.
## Individual Comments
### Comment 1
<location> `source/Logger/Logger.cpp:164-168` </location>
<code_context>
// https://stackoverflow.com/questions/55513974/controlling-inheritability-of-file-handles-created-by-c-stdfstream-in-window
std::string str_log_path = log_path_.string();
FILE* file_ptr = fopen(str_log_path.c_str(), append ? "a" : "w");
+ if (!file_ptr) {
+ // Failed to open file, log to stderr and explicitly reset stream
+ std::cerr << "Failed to open log file: " << str_log_path << std::endl;
+ ofs_ = std::ofstream(); // Reset to default-constructed (closed) state
+ return;
+ }
SetHandleInformation((HANDLE)_get_osfhandle(_fileno(file_ptr)), HANDLE_FLAG_INHERIT, 0);
</code_context>
<issue_to_address>
**suggestion:** Include more detail in the log message on `fopen` failure to aid diagnosis.
Currently only the path is logged, which doesn’t explain *why* `fopen` failed. Please include the error string as well (e.g. via `std::strerror(errno)` or equivalent) so callers can distinguish between causes like permission denied, missing directory, etc.
Suggested implementation:
```cpp
FILE* file_ptr = fopen(str_log_path.c_str(), append ? "a" : "w");
if (!file_ptr) {
// Failed to open file, log to stderr and explicitly reset stream
std::cerr << "Failed to open log file: " << str_log_path
<< " (errno=" << errno << ", " << std::strerror(errno) << ')'
<< std::endl;
ofs_ = std::ofstream(); // Reset to default-constructed (closed) state
return;
}
```
To compile successfully, ensure that at the top of `source/Logger/Logger.cpp` you include the necessary headers for `errno` and `std::strerror`:
- Add `#include <cerrno>` (for `errno`)
- Add `#include <cstring>` (for `std::strerror`)
If these headers are already present, no further changes are required.
</issue_to_address>帮我变得更有用！请在每条评论上点亮 👍 或 👎，我会根据你的反馈改进后续评审。
Original comment in English
Hey - I've found 1 issue, and left some high level feedback:
- In
LogStream::operator<<, you callbuffer_.str()multiple times (once in thetellp()fallback and again when materializingcontent); consider caching the string in a local variable so size checks and truncation reuse the same materialization and avoid extra copies. - The new size constants
kMaxLogSizeandkTruncatedSizeassumekTruncatedSize <= kMaxLogSize; it might be safer to enforce this via astatic_assertso future changes don't accidentally invert the relationship. - The new stderr warnings/errors in the log path (e.g., for oversized entries,
tellp()failure, and invalid streams) may be quite noisy in some environments; consider gating them behind a debug flag or log-level check to reduce potential stderr flooding in production.
Prompt for AI Agents
Please address the comments from this code review:
## Overall Comments
- In `LogStream::operator<<`, you call `buffer_.str()` multiple times (once in the `tellp()` fallback and again when materializing `content`); consider caching the string in a local variable so size checks and truncation reuse the same materialization and avoid extra copies.
- The new size constants `kMaxLogSize` and `kTruncatedSize` assume `kTruncatedSize <= kMaxLogSize`; it might be safer to enforce this via a `static_assert` so future changes don't accidentally invert the relationship.
- The new stderr warnings/errors in the log path (e.g., for oversized entries, `tellp()` failure, and invalid streams) may be quite noisy in some environments; consider gating them behind a debug flag or log-level check to reduce potential stderr flooding in production.
## Individual Comments
### Comment 1
<location> `source/Logger/Logger.cpp:164-168` </location>
<code_context>
// https://stackoverflow.com/questions/55513974/controlling-inheritability-of-file-handles-created-by-c-stdfstream-in-window
std::string str_log_path = log_path_.string();
FILE* file_ptr = fopen(str_log_path.c_str(), append ? "a" : "w");
+ if (!file_ptr) {
+ // Failed to open file, log to stderr and explicitly reset stream
+ std::cerr << "Failed to open log file: " << str_log_path << std::endl;
+ ofs_ = std::ofstream(); // Reset to default-constructed (closed) state
+ return;
+ }
SetHandleInformation((HANDLE)_get_osfhandle(_fileno(file_ptr)), HANDLE_FLAG_INHERIT, 0);
</code_context>
<issue_to_address>
**suggestion:** Include more detail in the log message on `fopen` failure to aid diagnosis.
Currently only the path is logged, which doesn’t explain *why* `fopen` failed. Please include the error string as well (e.g. via `std::strerror(errno)` or equivalent) so callers can distinguish between causes like permission denied, missing directory, etc.
Suggested implementation:
```cpp
FILE* file_ptr = fopen(str_log_path.c_str(), append ? "a" : "w");
if (!file_ptr) {
// Failed to open file, log to stderr and explicitly reset stream
std::cerr << "Failed to open log file: " << str_log_path
<< " (errno=" << errno << ", " << std::strerror(errno) << ')'
<< std::endl;
ofs_ = std::ofstream(); // Reset to default-constructed (closed) state
return;
}
```
To compile successfully, ensure that at the top of `source/Logger/Logger.cpp` you include the necessary headers for `errno` and `std::strerror`:
- Add `#include <cerrno>` (for `errno`)
- Add `#include <cstring>` (for `std::strerror`)
If these headers are already present, no further changes are required.
</issue_to_address>Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
SourceryAI
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Jan 14, 2026
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Hey - 我发现了 1 个问题，并给出了一些高层次的反馈：
- 在
LogStream::operator<</flush 中，你在tellp()失败的回退路径和后面构造content时都调用了一次buffer_.str()；可以考虑至多只将字符串物化一次（然后复用它），以避免额外的内存分配，并让尺寸检查与实际写入的内容保持一致。 - 当
stream_没有打开或处于错误状态时，你目前只是向stderr记录一条错误日志并丢弃该条日志记录；可以考虑在这些路径中也把（可能被截断的）日志内容输出到stderr，避免重要日志被静默丢失。
给 AI 代理的提示
Please address the comments from this code review:
## Overall Comments
- In `LogStream::operator<<`/flush, you call `buffer_.str()` both in the `tellp()`-failure fallback and again later to build `content`; consider materializing the string at most once (and reusing it) to avoid extra allocation and keep the size check consistent with what is actually written.
- When `stream_` is not open or in an error state you currently just log an error to `stderr` and drop the entry; consider also emitting the (possibly truncated) log content to `stderr` in these paths so that important messages are not silently lost.
## Individual Comments
### Comment 1
<location> `include/MaaUtils/LoggerUtils.h:78-87` </location>
<code_context>
+ auto pos = buffer_.tellp();
</code_context>
<issue_to_address>
**suggestion (performance):** Avoid recomputing `buffer_.str()` on the fallback path to reduce overhead for oversized logs.
On the `tellp()` failure path, `buffer_.str()` is invoked once to compute `content_size` and again to initialize `content`. For very large log entries, this double materialization is costly. Instead, compute it once in the fallback branch (e.g., `auto serialized = buffer_.str();`), use `serialized.size()` for the check, and then move `serialized` into `content` to avoid the second call.
Suggested implementation:
```c
// Check size before any output without materializing the string
// Guard against tellp() failure (returns -1 on error)
auto pos = buffer_.tellp();
std::string serialized; // may hold materialized content in fallback path
size_t content_size = 0;
if (pos >= 0) {
content_size = static_cast<size_t>(pos);
} else {
// Fallback: materialize string once to get size if tellp() fails
serialized = buffer_.str();
content_size = serialized.size();
std::cerr << "[WARNING: tellp() failed, using fallback size check]" << std::endl;
}
// Output to stdout (skip if too large to avoid flooding console)
```
To fully leverage the single materialization and avoid a second `buffer_.str()` call later in this function:
1. When you construct the final `content` string (or equivalent), use:
- `std::string content = serialized.empty() ? buffer_.str() : std::move(serialized);`
2. Ensure this construction happens in the same scope so it can access the `serialized` variable introduced above.
This will eliminate the extra `buffer_.str()` call on the `tellp()` failure path while preserving behavior on the success path.
</issue_to_address>Hi @Windsland52! 👋
感谢你通过评论 @sourcery-ai review 来体验 Sourcery！🚀
安装 sourcery-ai 机器人，即可在每个 Pull Request 上自动获得代码审查 ✨
帮我变得更有用！请在每条评论上点 👍 或 👎，我会根据你的反馈改进后续的审查。Original comment in English
Hey - I've found 1 issue, and left some high level feedback:
- In
LogStream::operator<</flush, you callbuffer_.str()both in thetellp()-failure fallback and again later to buildcontent; consider materializing the string at most once (and reusing it) to avoid extra allocation and keep the size check consistent with what is actually written. - When
stream_is not open or in an error state you currently just log an error tostderrand drop the entry; consider also emitting the (possibly truncated) log content tostderrin these paths so that important messages are not silently lost.
Prompt for AI Agents
Please address the comments from this code review:
## Overall Comments
- In `LogStream::operator<<`/flush, you call `buffer_.str()` both in the `tellp()`-failure fallback and again later to build `content`; consider materializing the string at most once (and reusing it) to avoid extra allocation and keep the size check consistent with what is actually written.
- When `stream_` is not open or in an error state you currently just log an error to `stderr` and drop the entry; consider also emitting the (possibly truncated) log content to `stderr` in these paths so that important messages are not silently lost.
## Individual Comments
### Comment 1
<location> `include/MaaUtils/LoggerUtils.h:78-87` </location>
<code_context>
+ auto pos = buffer_.tellp();
</code_context>
<issue_to_address>
**suggestion (performance):** Avoid recomputing `buffer_.str()` on the fallback path to reduce overhead for oversized logs.
On the `tellp()` failure path, `buffer_.str()` is invoked once to compute `content_size` and again to initialize `content`. For very large log entries, this double materialization is costly. Instead, compute it once in the fallback branch (e.g., `auto serialized = buffer_.str();`), use `serialized.size()` for the check, and then move `serialized` into `content` to avoid the second call.
Suggested implementation:
```c
// Check size before any output without materializing the string
// Guard against tellp() failure (returns -1 on error)
auto pos = buffer_.tellp();
std::string serialized; // may hold materialized content in fallback path
size_t content_size = 0;
if (pos >= 0) {
content_size = static_cast<size_t>(pos);
} else {
// Fallback: materialize string once to get size if tellp() fails
serialized = buffer_.str();
content_size = serialized.size();
std::cerr << "[WARNING: tellp() failed, using fallback size check]" << std::endl;
}
// Output to stdout (skip if too large to avoid flooding console)
```
To fully leverage the single materialization and avoid a second `buffer_.str()` call later in this function:
1. When you construct the final `content` string (or equivalent), use:
- `std::string content = serialized.empty() ? buffer_.str() : std::move(serialized);`
2. Ensure this construction happens in the same scope so it can access the `serialized` variable introduced above.
This will eliminate the extra `buffer_.str()` call on the `tellp()` failure path while preserving behavior on the success path.
</issue_to_address>Hi @Windsland52! 👋
Thanks for trying out Sourcery by commenting with @sourcery-ai review! 🚀
Install the sourcery-ai bot to get automatic code reviews on every pull request ✨
Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
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Hey - 我在这里给出了一些总体反馈：
- 在
LogStream::flush()中，之前使用std::move(buffer_).str()会隐式清空缓冲区；在新的实现中使用的是buffer_.str()且没有重置缓冲区，这样后续的日志条目可能会反复包含旧内容——建议在写出之后显式清空/重置buffer_。 - 截断逻辑中使用
std::format会引入 C++20 依赖，从而降低可移植性；如果项目需要支持更老的工具链或嵌入式环境，建议改用 fmtlib，或采用更简单的手动格式化方式。 Logger::open()中调用的strerror()在某些平台上不是线程安全的；为避免在多线程日志场景下出现潜在的数据竞争，建议改用strerror_s/strerror_r，或std::system_category().message(errno)。
供 AI 代理使用的提示
Please address the comments from this code review:
## Overall Comments
- In LogStream::flush(), the previous use of std::move(buffer_).str() implicitly cleared the buffer; with the new implementation using buffer_.str() and not resetting the buffer, subsequent log entries may repeatedly include old content—consider explicitly clearing/resetting buffer_ after writing.
- The use of std::format in the truncation path introduces a C++20 dependency and may reduce portability; if the project targets older toolchains or embedded environments, consider replacing it with fmtlib or a simpler manual formatting approach.
- The strerror() call in Logger::open() is not thread-safe on some platforms; to avoid potential data races in multi-threaded logging, consider using strerror_s/strerror_r or std::system_category().message(errno) instead.帮我变得更有用！请在每条评论上点击 👍 或 👎，我会根据你的反馈改进后续的评审。
Original comment in English
Hey - I've left some high level feedback:
- In LogStream::flush(), the previous use of std::move(buffer_).str() implicitly cleared the buffer; with the new implementation using buffer_.str() and not resetting the buffer, subsequent log entries may repeatedly include old content—consider explicitly clearing/resetting buffer_ after writing.
- The use of std::format in the truncation path introduces a C++20 dependency and may reduce portability; if the project targets older toolchains or embedded environments, consider replacing it with fmtlib or a simpler manual formatting approach.
- The strerror() call in Logger::open() is not thread-safe on some platforms; to avoid potential data races in multi-threaded logging, consider using strerror_s/strerror_r or std::system_category().message(errno) instead.
Prompt for AI Agents
Please address the comments from this code review:
## Overall Comments
- In LogStream::flush(), the previous use of std::move(buffer_).str() implicitly cleared the buffer; with the new implementation using buffer_.str() and not resetting the buffer, subsequent log entries may repeatedly include old content—consider explicitly clearing/resetting buffer_ after writing.
- The use of std::format in the truncation path introduces a C++20 dependency and may reduce portability; if the project targets older toolchains or embedded environments, consider replacing it with fmtlib or a simpler manual formatting approach.
- The strerror() call in Logger::open() is not thread-safe on some platforms; to avoid potential data races in multi-threaded logging, consider using strerror_s/strerror_r or std::system_category().message(errno) instead.Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
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嗨——我发现了 1 个问题，并给出了一些整体反馈：
- 在
LogStream::flush()中，正常路径里你仍然对缓冲区做了两次实体化（stdout_string()然后buffer_.str()）；可以考虑复用同一个缓存好的字符串用于 stdout 和文件输出，以避免重复的内存分配和字符串构造。 - 在截断的热点路径中使用
std::format可能相对较重，而且现在是用一个兜底的 catch-all 来保护；如果你关心性能或对非 C++20 工具链的可移植性，建议用更简单的格式化方式替代（例如字符串拼接或 fmtlib）。 - 固定大小限制
kMaxLogSize和kTruncatedSize是硬编码在LogStream里的；如果不同部署可能需要不同阈值，建议把它们做成可配置参数（例如通过Logger或配置结构体传入），而不是编译期常量。
给 AI Agent 的提示
Please address the comments from this code review:
## Overall Comments
- In LogStream::flush(), you still materialize the buffer twice in the normal path (stdout_string() and then buffer_.str()); consider reusing the same cached string for stdout and file output to avoid duplicate allocations and string construction.
- The use of std::format inside the hot path for truncation can be relatively heavy and is guarded by a catch-all; if performance or portability to non-C++20 toolchains is a concern, consider replacing it with a simpler formatting approach (e.g., string concatenation or fmtlib).
- The hardcoded size limits kMaxLogSize and kTruncatedSize are embedded in LogStream; if different deployments may need different thresholds, consider plumbing these as configurable parameters (e.g., via Logger or a config struct) rather than compile-time constants.
## Individual Comments
### Comment 1
<location> `include/MaaUtils/LoggerUtils.h:101-110` </location>
<code_context>
+ // Get content (reuse cached if available, otherwise materialize now)
</code_context>
<issue_to_address>
**issue (bug_risk):** Log buffer is no longer cleared after flush, so content will accumulate across log entries.
With `std::move(buffer_).str()` removed, we now only call `buffer_.str()` and never reset the stream or its state. Subsequent `flush()` calls will re-log old content and grow the buffer indefinitely. Please clear and reset the buffer at the end of `flush()` (e.g. `buffer_.str({}); buffer_.clear();`).
</issue_to_address>帮我变得更有用！请在每条评论上点 👍 或 👎，我会根据你的反馈改进后续的评审。
Original comment in English
Hey - I've found 1 issue, and left some high level feedback:
- In LogStream::flush(), you still materialize the buffer twice in the normal path (stdout_string() and then buffer_.str()); consider reusing the same cached string for stdout and file output to avoid duplicate allocations and string construction.
- The use of std::format inside the hot path for truncation can be relatively heavy and is guarded by a catch-all; if performance or portability to non-C++20 toolchains is a concern, consider replacing it with a simpler formatting approach (e.g., string concatenation or fmtlib).
- The hardcoded size limits kMaxLogSize and kTruncatedSize are embedded in LogStream; if different deployments may need different thresholds, consider plumbing these as configurable parameters (e.g., via Logger or a config struct) rather than compile-time constants.
Prompt for AI Agents
Please address the comments from this code review:
## Overall Comments
- In LogStream::flush(), you still materialize the buffer twice in the normal path (stdout_string() and then buffer_.str()); consider reusing the same cached string for stdout and file output to avoid duplicate allocations and string construction.
- The use of std::format inside the hot path for truncation can be relatively heavy and is guarded by a catch-all; if performance or portability to non-C++20 toolchains is a concern, consider replacing it with a simpler formatting approach (e.g., string concatenation or fmtlib).
- The hardcoded size limits kMaxLogSize and kTruncatedSize are embedded in LogStream; if different deployments may need different thresholds, consider plumbing these as configurable parameters (e.g., via Logger or a config struct) rather than compile-time constants.
## Individual Comments
### Comment 1
<location> `include/MaaUtils/LoggerUtils.h:101-110` </location>
<code_context>
+ // Get content (reuse cached if available, otherwise materialize now)
</code_context>
<issue_to_address>
**issue (bug_risk):** Log buffer is no longer cleared after flush, so content will accumulate across log entries.
With `std::move(buffer_).str()` removed, we now only call `buffer_.str()` and never reset the stream or its state. Subsequent `flush()` calls will re-log old content and grow the buffer indefinitely. Please clear and reset the buffer at the end of `flush()` (e.g. `buffer_.str({}); buffer_.clear();`).
</issue_to_address>Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
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There was a problem hiding this comment.
Hey - 我发现了 1 个问题，并给出了一些整体层面的反馈：
- 在
LogStream中，构造函数的默认参数在这些成员声明之前就引用了kDefaultMaxLogSize和kDefaultTruncatedSize，这在某些编译器上可能无法通过编译；建议将这些 static constexpr 声明移动到构造函数之前，或者使用单独的、用于默认值的类内 constexpr 帮助变量。 - 当调用方提供自定义的
max_log_size和truncated_size时，并不像默认值那样保证truncated_size <= max_log_size；建议在构造函数中对这一关系进行限制（clamp）或断言，以避免意外的截断行为。
Prompt for AI Agents
Please address the comments from this code review:
## Overall Comments
- In `LogStream`, the constructor’s default arguments reference `kDefaultMaxLogSize` and `kDefaultTruncatedSize` before those members are declared, which may not compile on all compilers; consider moving the static constexpr declarations above the constructor or using a separate constexpr in-class helper for the defaults.
- When callers provide custom `max_log_size` and `truncated_size`, there is no guarantee that `truncated_size <= max_log_size` as there is for the defaults; consider clamping or asserting this relationship in the constructor to avoid surprising truncation behavior.
## Individual Comments
### Comment 1
<location> `include/MaaUtils/LoggerUtils.h:60-68` </location>
<code_context>
public:
template <typename... args_t>
- LogStream(std::mutex& m, std::ofstream& s, level lv, bool std_out, args_t&&... args)
+ LogStream(std::mutex& m, std::ofstream& s, level lv, bool std_out,
+ size_t max_log_size = kDefaultMaxLogSize,
+ size_t truncated_size = kDefaultTruncatedSize,
+ args_t&&... args)
: mutex_(m)
, stream_(s)
, lv_(lv)
, stdout_(std_out)
+ , max_log_size_(max_log_size)
+ , truncated_size_(truncated_size)
{
</code_context>
<issue_to_address>
**issue (bug_risk):** Referencing kDefaultMaxLogSize/kDefaultTruncatedSize in default parameters may be ill-formed if those members are not visible yet.
These default arguments refer to kDefaultMaxLogSize and kDefaultTruncatedSize, which are declared later in the class. Since default argument lookup may not see members declared afterwards, this can be ill-formed on some compilers/standards. Please either declare the static constexpr members before the constructor, or move the constructor definition out of the class and specify the defaults after those members are declared.
</issue_to_address>Sourcery is free for open source - if you like our reviews please consider sharing them ✨
Original comment in English
Hey - I've found 1 issue, and left some high level feedback:
- In
LogStream, the constructor’s default arguments referencekDefaultMaxLogSizeandkDefaultTruncatedSizebefore those members are declared, which may not compile on all compilers; consider moving the static constexpr declarations above the constructor or using a separate constexpr in-class helper for the defaults. - When callers provide custom
max_log_sizeandtruncated_size, there is no guarantee thattruncated_size <= max_log_sizeas there is for the defaults; consider clamping or asserting this relationship in the constructor to avoid surprising truncation behavior.
Prompt for AI Agents
Please address the comments from this code review:
## Overall Comments
- In `LogStream`, the constructor’s default arguments reference `kDefaultMaxLogSize` and `kDefaultTruncatedSize` before those members are declared, which may not compile on all compilers; consider moving the static constexpr declarations above the constructor or using a separate constexpr in-class helper for the defaults.
- When callers provide custom `max_log_size` and `truncated_size`, there is no guarantee that `truncated_size <= max_log_size` as there is for the defaults; consider clamping or asserting this relationship in the constructor to avoid surprising truncation behavior.
## Individual Comments
### Comment 1
<location> `include/MaaUtils/LoggerUtils.h:60-68` </location>
<code_context>
public:
template <typename... args_t>
- LogStream(std::mutex& m, std::ofstream& s, level lv, bool std_out, args_t&&... args)
+ LogStream(std::mutex& m, std::ofstream& s, level lv, bool std_out,
+ size_t max_log_size = kDefaultMaxLogSize,
+ size_t truncated_size = kDefaultTruncatedSize,
+ args_t&&... args)
: mutex_(m)
, stream_(s)
, lv_(lv)
, stdout_(std_out)
+ , max_log_size_(max_log_size)
+ , truncated_size_(truncated_size)
{
</code_context>
<issue_to_address>
**issue (bug_risk):** Referencing kDefaultMaxLogSize/kDefaultTruncatedSize in default parameters may be ill-formed if those members are not visible yet.
These default arguments refer to kDefaultMaxLogSize and kDefaultTruncatedSize, which are declared later in the class. Since default argument lookup may not see members declared afterwards, this can be ill-formed on some compilers/standards. Please either declare the static constexpr members before the constructor, or move the constructor definition out of the class and specify the defaults after those members are declared.
</issue_to_address>Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
Comment on lines
+60
to
+68
| LogStream(std::mutex& m, std::ofstream& s, level lv, bool std_out, | ||
| size_t max_log_size = kDefaultMaxLogSize, | ||
| size_t truncated_size = kDefaultTruncatedSize, | ||
| args_t&&... args) | ||
| : mutex_(m) | ||
| , stream_(s) | ||
| , lv_(lv) | ||
| , stdout_(std_out) | ||
| , max_log_size_(max_log_size) |
There was a problem hiding this comment.
issue (bug_risk): 在默认参数中引用 kDefaultMaxLogSize/kDefaultTruncatedSize 时，如果这些成员尚未可见，可能会导致格式不合法（ill-formed）。
这些默认参数引用了在类中稍后声明的 kDefaultMaxLogSize 和 kDefaultTruncatedSize。由于默认参数查找可能无法看到之后才声明的成员，这在某些编译器或标准下会是 ill-formed。请将这些 static constexpr 成员声明移动到构造函数之前，或者将构造函数定义移出类体，并在这些成员声明之后再为其指定默认参数。
Original comment in English
issue (bug_risk): Referencing kDefaultMaxLogSize/kDefaultTruncatedSize in default parameters may be ill-formed if those members are not visible yet.
These default arguments refer to kDefaultMaxLogSize and kDefaultTruncatedSize, which are declared later in the class. Since default argument lookup may not see members declared afterwards, this can be ill-formed on some compilers/standards. Please either declare the static constexpr members before the constructor, or move the constructor definition out of the class and specify the defaults after those members are declared.
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@MistEO 康康
由 Sourcery 提供的摘要
提升基于文件的日志记录和日志轮转的健壮性与安全性。
错误修复：
改进：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
功能增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
Bug 修复：
增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录和日志轮转的健壮性与安全性。
错误修复：
改进：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
功能增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
Bug 修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录和日志轮转的健壮性与安全性。
错误修复：
改进：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
功能增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
Bug 修复：
增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录和日志轮转的健壮性与安全性。
错误修复：
改进：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
功能增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
Bug 修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录和日志轮转的健壮性与安全性。
错误修复：
改进：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
功能增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
Bug 修复：
增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录和日志轮转的健壮性与安全性。
错误修复：
改进：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
功能增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
Bug 修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录和日志轮转的健壮性与安全性。
错误修复：
改进：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
功能增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
Bug 修复：
增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录和日志轮转的健壮性与安全性。
错误修复：
改进：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
功能增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
Bug 修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录和日志轮转的健壮性与安全性。
错误修复：
改进：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
功能增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
Bug 修复：
增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录和日志轮转的健壮性与安全性。
错误修复：
改进：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
功能增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
Bug 修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录和日志轮转的健壮性与安全性。
错误修复：
改进：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
功能增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
Bug 修复：
增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录和日志轮转的健壮性与安全性。
错误修复：
改进：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
功能增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
Bug 修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录和日志轮转的健壮性与安全性。
错误修复：
改进：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
功能增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
Bug 修复：
增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录和日志轮转的健壮性与安全性。
错误修复：
改进：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
功能增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
Bug 修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录和日志轮转的健壮性与安全性。
错误修复：
改进：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
功能增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
Bug 修复：
增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录和日志轮转的健壮性与安全性。
错误修复：
改进：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
功能增强：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements:
错误修复：
增强功能：
Original summary in English
由 Sourcery 提供的摘要
提升基于文件的日志记录及日志轮转的健壮性与安全性。
错误修复：
改进增强：
Original summary in English
Summary by Sourcery
改进基于文件的日志记录和日志轮转在处理大型日志条目和文件 I/O 失败时的健壮性和安全性。
Bug 修复：
增强功能：
Original summary in English
Summary by Sourcery
Improve robustness and safety of file-based logging and log rotation around large log entries and file I/O failures.
Bug Fixes:
Enhancements: