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      1 /*
      2  *
      3  *   Copyright (c) Crackerjack Project., 2007
      4  *   Copyright (c) 2011 Cyril Hrubis <chrubis (at) suse.cz>
      5  *
      6  *   This program is free software;  you can redistribute it and/or modify
      7  *   it under the terms of the GNU General Public License as published by
      8  *   the Free Software Foundation; either version 2 of the License, or
      9  *   (at your option) any later version.
     10  *
     11  *   This program is distributed in the hope that it will be useful,
     12  *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
     13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
     14  *   the GNU General Public License for more details.
     15  *
     16  *   You should have received a copy of the GNU General Public License
     17  *   along with this program;  if not, write to the Free Software
     18  *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
     19  */
     20 
     21 /* Porting from Crackerjack to LTP is done
     22    by Masatake YAMATO <yamato (at) redhat.com> */
     23 
     24 #include "config.h"
     25 #include "test.h"
     26 
     27 char *TCID = "io_cancel01";
     28 
     29 int TST_TOTAL = 1;
     30 
     31 #ifdef HAVE_LIBAIO_H
     32 #include <libaio.h>
     33 #include <errno.h>
     34 #include <string.h>
     35 
     36 static void cleanup(void)
     37 {
     38 }
     39 
     40 static void setup(void)
     41 {
     42 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
     43 
     44 	TEST_PAUSE;
     45 }
     46 
     47 /*
     48    DESCRIPTION
     49    io_cancel attempts to cancel an asynchronous I/O operation  previously
     50    submitted  with  the io_submit system call.  ctx_id is the AIO context
     51    ID of the operation to be cancelled.  If the AIO context is found, the
     52    event  will be cancelled and then copied into the memory pointed to by
     53    result without being placed into the completion queue.
     54 
     55    RETURN VALUE
     56    io_cancel returns 0 on success; otherwise, it returns one of  the  er-
     57    rors listed in the "Errors" section.
     58 
     59    ERRORS
     60    EINVAL The AIO context specified by ctx_id is invalid.
     61 
     62    EFAULT One of the data structures points to invalid data.
     63  */
     64 
     65 #define EXP_RET (-EFAULT)
     66 
     67 int main(int argc, char *argv[])
     68 {
     69 	int lc;
     70 
     71 	io_context_t ctx;
     72 
     73 	memset(&ctx, 0, sizeof(ctx));
     74 
     75 	tst_parse_opts(argc, argv, NULL, NULL);
     76 
     77 	setup();
     78 
     79 	for (lc = 0; TEST_LOOPING(lc); lc++) {
     80 		tst_count = 0;
     81 
     82 		TEST(io_cancel(ctx, NULL, NULL));
     83 
     84 		switch (TEST_RETURN) {
     85 		case 0:
     86 			tst_resm(TFAIL, "call succeeded unexpectedly");
     87 			break;
     88 		case EXP_RET:
     89 			tst_resm(TPASS, "expected failure - "
     90 				 "returned value = %ld : %s", TEST_RETURN,
     91 				 strerror(-TEST_RETURN));
     92 			break;
     93 		case -ENOSYS:
     94 			tst_resm(TCONF, "io_cancel returned ENOSYS");
     95 			break;
     96 		default:
     97 			tst_resm(TFAIL, "unexpected returned value - %s (%i) - "
     98 				 "expected %s (%i)", strerror(-TEST_RETURN),
     99 				 (int)TEST_RETURN, strerror(-EXP_RET), EXP_RET);
    100 			break;
    101 		}
    102 
    103 	}
    104 
    105 	cleanup();
    106 	tst_exit();
    107 }
    108 #else
    109 int main(int argc, char *argv[])
    110 {
    111 	tst_brkm(TCONF, NULL, "System doesn't have libaio support");
    112 }
    113 #endif
    114