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| author | Kaz Kylheku <kaz@kylheku.com> | 2022-05-26 21:45:41 -0700 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2022-05-26 21:45:41 -0700 |
| commit | 4388a06cb509ff98eaf0be822e3fb41a49534dca (patch) | |
| tree | d0ce445422ce87c321a68dfbae761f637128af6a | |
| parent | be39cb48cc908e1f07d9aa06968012c542031cf6 (diff) | |
| download | txr-4388a06cb509ff98eaf0be822e3fb41a49534dca.tar.gz txr-4388a06cb509ff98eaf0be822e3fb41a49534dca.tar.bz2 txr-4388a06cb509ff98eaf0be822e3fb41a49534dca.zip | |
streams: avoid double access to errno.
* stream.c (stdio_maybe_read_error): Access errno once, and
refer to the value.
| -rw-r--r-- | stream.c | 5 |
1 files changed, 3 insertions, 2 deletions
@@ -593,10 +593,11 @@ static val stdio_maybe_read_error(val stream) if (h->f == 0) uw_throwf(file_error_s, lit("error reading ~s: file closed"), stream, nao); if (ferror(h->f)) { - val err = num(errno); + int eno = errno; + val err = num(eno); h->err = err; #ifdef EAGAIN - if (errno == EAGAIN) + if (eno == EAGAIN) uw_ethrowf(timeout_error_s, lit("timed out reading ~s"), stream, nao); #endif uw_ethrowf(file_error_s, lit("error reading ~s: ~d/~s"), |