On Mon, 26 Sep 2022 15:47:51 GMT, Julian Waters <jwat...@openjdk.org> wrote:
>> EDIT: Cave and add the ErrorOrigin enum, to differentiate which error type
>> the error reporting functions in libjava will look up. RUNTIME refers to
>> errors passed through the runtime via errno, and SYSTEM is for native errors
>> not visible to the runtime.
>
> Julian Waters has updated the pull request incrementally with one additional
> commit since the last revision:
>
> Whitespace
This seems to be trying to future-proof the reporting code by introducing a
duality that is not actually needed at present in some cases. That means the
code is untested. Are there planned uses of `RUNTIME` in the very near future?
src/java.base/share/native/libjava/jni_util.h line 339:
> 337: char *jniEntryName);
> 338:
> 339: // RUNTIME - Errors that were passed through the runtime
If "runtime" means "C runtime" (as the system description suggests) then please
say that.
src/java.base/share/native/libjava/jni_util.h line 348:
> 346:
> 347: JNIEXPORT size_t JNICALL
> 348: getLastErrorString(char *buf, size_t len, ErrorOrigin origin);
AFAICS we never pass RUNTIME to `getLastErrorString`
src/java.base/share/native/libjli/java.h line 145:
> 143: */
> 144: JNIEXPORT void JNICALL
> 145: JLI_ReportErrorMessageSys(ErrorOrigin origin, const char * message, ...);
AFAICS we never pass RUNTIME to `JLI_ReportErrorMessageSys`.
src/java.base/unix/native/libjli/java_md_common.c line 207:
> 205: va_start(vl, fmt);
> 206: vfprintf(stderr, fmt, vl);
> 207: if (errno != 0) {
Is `vfprintf` guaranteed to not set `errno`?
-------------
PR: https://git.openjdk.org/jdk/pull/9870
