When aio_sigevent.sigev_notify is set to SIGEV_SIGNAL, signal handlers
called for asychronous I/O operations will have si->si_code set to
SI_ASYNCIO. Check to make sure that si->si_value.sival_ptr is defined.
Signed-off-by: Andreas Gruenbacher <agruenba@xxxxxxxxxx>
---
aio.7 | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/aio.7 b/aio.7
index 1f861da..21193fd 100644
--- a/aio.7
+++ b/aio.7
@@ -281,12 +281,14 @@ quitHandler(int sig)
static void /* Handler for I/O completion signal */
aioSigHandler(int sig, siginfo_t *si, void *ucontext)
{
- write(STDOUT_FILENO, "I/O completion signal received\\n", 31);
+ if (si->si_code == SI_ASYNCIO) {
+ write(STDOUT_FILENO, "I/O completion signal received\\n", 31);
- /* The corresponding ioRequest structure would be available as
- struct ioRequest *ioReq = si\->si_value.sival_ptr;
- and the file descriptor would then be available via
- ioReq\->aiocbp\->aio_fildes */
+ /* The corresponding ioRequest structure would be available as
+ struct ioRequest *ioReq = si\->si_value.sival_ptr;
+ and the file descriptor would then be available via
+ ioReq\->aiocbp\->aio_fildes */
+ }
}
int
--
2.5.0
--
To unsubscribe from this list: send the line "unsubscribe linux-man" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
