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// $Id$
// ============================================================================
//
// = FILENAME
// aio_platform_test.cpp
//
// = DESCRITPTION
// Testing the platform for POSIX Asynchronous I/O.
//
// = AUTHOR
// Programming for the Real World. Bill O. GallMeister.
// Modified by Alexander Babu Arulanthu <alex@cs.wustl.edu>
//
// =====================================================================
#include "test_config.h"
#include "ace/OS.h"
// Define old style feature selector.
//#define _POSIX_SOURCE
// Use 9/93 POSIX.1 .2 and .4 definitions only.
//#define _POSIX_C_SOURCE 199309L
#if defined _POSIX_ASYNCHRONOUS_IO
#if defined _POSIX_ASYNC_IO
#if _POSIX_ASYNC_IO == -1
int
have_asynchio (void)
{
ACE_DEBUG ((LM_DEBUG,
"_POSIX_ASYNC_IO = -1.. Not supported at all\n"));
return 0;
}
#else /* _POSIX_ASYNC_IO is != -1 */
// Supported everywhere.
int
have_asynchio (void)
{
ACE_DEBUG ((LM_DEBUG, "_POSIX_ASYNC_IO is != -1..AIO is supported everywhere\n"));
ACE_DEBUG ((LM_DEBUG, "System claims to have POSIX_ASYNCHRONOUS_IO\n"));
ACE_DEBUG ((LM_DEBUG, "_POSIX_AIO_LISTIO_MAX = %d\n", _POSIX_AIO_LISTIO_MAX));
ACE_DEBUG ((LM_DEBUG, "_POSIX_AIO_MAX = %d\n", _POSIX_AIO_MAX));
// Call sysconf to find out runtime values.
errno = 0;
ACE_ERROR ((LM_ERROR,
#if defined (_SC_LISTIO_AIO_MAX)
"Runtime value of LISTIO_AIO_MAX is %d, errno = %d\n",
sysconf(_SC_LISTIO_AIO_MAX),
#else
"Runtime value of AIO_LISTIO_MAX is %d, errno = %d\n",
sysconf(_SC_AIO_LISTIO_MAX),
#endif
errno));
errno = 0;
ACE_ERROR ((LM_ERROR,
"Runtime value of AIO_MAX is %d, errno = %d\n",
sysconf (_SC_AIO_MAX),
errno));
errno = 0;
ACE_ERROR ((LM_ERROR,
"Runtime value of _POSIX_ASYNCHRONOUS_IO is %d, errno = %d\n",
sysconf (_SC_ASYNCHRONOUS_IO),
errno));
errno = 0;
ACE_ERROR ((LM_ERROR,
"Runtime value of _POSIX_REALTIME_SIGNALS is %d, errno = %d\n",
sysconf (_SC_REALTIME_SIGNALS),
errno));
errno = 0;
ACE_ERROR ((LM_ERROR,
"Runtime value of RTSIG_MAX %d\n",
sysconf (_SC_RTSIG_MAX)));
return 1;
}
#endif /* _POSIX_ASYNC_IO == -1 */
#else /* _POSIX_ASYNC_IO_ is not defined */
char *
asynch_io_files[] =
{
"/tmp/fu",
"/fu",
"./fu",
"/mnt/fu",
"/dev/tty",
"dev/dsk/c2t0ds0",
NULL
};
int
have_asynchio (void)
{
int i, res, num_ok;
ACE_ERROR ((LM_DEBUG,
"_POSIX_ASYNC_IO_ is not defined.\n"));
ACE_DEBUG ((LM_DEBUG,
"AIO might *not* be supported everwhere.\n"));
ACE_DEBUG ((LM_DEBUG, "System claims to have POSIX_ASYNCHRONOUS_IO\n"));
ACE_DEBUG ((LM_DEBUG, "_POSIX_AIO_LISTIO_MAX = %d\n", _POSIX_AIO_LISTIO_MAX));
ACE_DEBUG ((LM_DEBUG, "_POSIX_AIO_MAX = %d\n", _POSIX_AIO_MAX));
// Call sysconf to find out runtime values.
errno = 0;
ACE_ERROR ((LM_ERROR,
"Runtime value of AIO_LISTIO_MAX is %d, errno = %d\n",
sysconf(_SC_AIO_LISTIO_MAX),
errno));
errno = 0;
ACE_ERROR ((LM_ERROR,
"Runtime value of AIO_MAX is %d, errno = %d\n",
sysconf (_SC_AIO_MAX),
errno));
errno = 0;
ACE_ERROR ((LM_ERROR,
"Runtime value of _POSIX_ASYNCHRONOUS_IO is %d\n",
sysconf (_SC_ASYNCHRONOUS_IO)));
errno = 0;
ACE_ERROR ((LM_ERROR,
"Runtime value of _POSIX_REALTIME_SIGNALS is %d\n",
sysconf (_SC_REALTIME_SIGNALS)));
errno = 0;
ACE_ERROR ((LM_ERROR,
"Runtime value of RTSIG_MAX %d\n",
sysconf (_SC_RTSIG_MAX)));
ACE_DEBUG ((LM_DEBUG,
"Checking individual files using pathconf \n"));
for (i = num_ok = 0;
asynch_io_files[i];
i++)
{
ACE_DEBUG ((LM_DEBUG,
"Checking on path %s\n", asynch_io_files [i]));
errno = 0;
res = pathconf (asynch_io_files [i], _PC_ASYNC_IO);
if ((res == -1) && (!errno))
{
ACE_DEBUG ((LM_DEBUG,
"\tAsynch IO is allowed :-)\n"));
num_ok++;
}
else if (res < 0)
{
ACE_ERROR ((LM_ERROR,
"(%p)\n", "Asynch I/O is not allowed >:-<"));
}
else
{
ACE_ERROR ((LM_ERROR,
"Asynch. I/O is allowed :-), res = %d, errno = %d\n",
res,
errno));
num_ok++;
}
}
if (num_ok == i)
return 1;
else
return 0;
}
#endif /* _POSIX_ASYNC_IO_ */
#else /* _POSIX_ASYNCHRONOUS_IO is not defined*/
int
have_asynchio (void)
{
ACE_DEBUG ((LM_DEBUG,
"_POSIX_ASYNCHRONOUS_IO itself is not defined\n"));
return 0;
}
#endif /* _POSIX_ASYNCHRONOUS_IO */
int
main (int, char *[])
{
ACE_START_TEST ("Aio_Platform_Test");
int ret_val = have_asynchio ();
if (ret_val == 1)
ACE_DEBUG ((LM_DEBUG, "POSIX Asynchronous IO is supported\n"));
else
ACE_DEBUG ((LM_DEBUG, "POSIX Asynchronous IO is not supported\n"));
ACE_END_TEST;
return 0;
}
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