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author | Joel Rosdahl <joel@rosdahl.net> | 2022-11-13 09:48:10 +0100 |
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committer | Joel Rosdahl <joel@rosdahl.net> | 2022-11-13 16:34:54 +0100 |
commit | 4905b1afacb01bff907b89dd4b05dff66b31790b (patch) | |
tree | 2be665d812fe55f216650f5b0487c1b92988a5c8 | |
parent | 7063aaf40ec5c9d14c40321951e99c651ac20e32 (diff) | |
download | ccache-4905b1afacb01bff907b89dd4b05dff66b31790b.tar.gz |
perf: Optimize util::write_file for empty data
-rw-r--r-- | src/util/file.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/util/file.cpp b/src/util/file.cpp index db0f4e83..7b718969 100644 --- a/src/util/file.cpp +++ b/src/util/file.cpp @@ -296,7 +296,7 @@ nonstd::expected<void, std::string> write_fd(int fd, const void* data, size_t size) { int64_t written = 0; - do { + while (static_cast<size_t>(written) < size) { const auto count = write(fd, static_cast<const uint8_t*>(data) + written, size - written); if (count == -1) { @@ -306,7 +306,7 @@ write_fd(int fd, const void* data, size_t size) } else { written += count; } - } while (static_cast<size_t>(written) < size); + } return {}; } |