| /* |
| * Copyright (c) 2004, Bull SA. All rights reserved. |
| * Created by: Laurent.Vivier@bull.net |
| * This file is licensed under the GPL license. For the full content |
| * of this license, see the COPYING file at the top level of this |
| * source tree. |
| */ |
| |
| /* |
| * assertion: |
| * |
| * Asynchronous notification shall occur for AIO that are successfully |
| * cancelled. |
| * |
| * method: |
| * |
| * we queue a lot of aio_write() with a valid sigevent to a file descriptor |
| * next we try to cancel all operations on this file descriptor |
| * we guess some have been finished, other are in progress, |
| * other are waiting |
| * we guess we can cancel all operations waiting |
| * then we analyze aio_error() in the event handler |
| * if aio_error() is ECANCELED, the test is passed |
| * otherwise, we don't know (perhaps we haven't cancel any operation ?) |
| * if number of sig event is not equal to number of aio_write() |
| * the test fails (in fact it hangs). |
| * |
| */ |
| |
| #define _XOPEN_SOURCE 600 |
| #include <stdio.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <signal.h> |
| #include <stdlib.h> |
| #include <aio.h> |
| |
| #include "posixtest.h" |
| |
| #define TNAME "aio_cancel/3-1.c" |
| |
| #define BUF_NB 128 |
| #define BUF_SIZE (1024 * 1024) |
| |
| static volatile int countdown = BUF_NB; |
| static volatile int canceled; |
| |
| void sig_handler(int signum, siginfo_t *info, void *context) |
| { |
| struct aiocb *a = info->si_value.sival_ptr; |
| |
| if (aio_error(a) == ECANCELED) |
| canceled++; |
| |
| aio_return(a); /* free entry */ |
| |
| countdown--; |
| } |
| |
| int main(void) |
| { |
| char tmpfname[256]; |
| int fd; |
| struct aiocb *aiocb_list[BUF_NB]; |
| struct aiocb *aiocb; |
| struct sigaction action; |
| int i; |
| |
| if (sysconf(_SC_ASYNCHRONOUS_IO) < 200112L) { |
| printf(TNAME " %ld\n", sysconf(_SC_ASYNCHRONOUS_IO)); |
| return PTS_UNSUPPORTED; |
| } |
| |
| snprintf(tmpfname, sizeof(tmpfname), "/tmp/pts_aio_cancel_3_1_%d", |
| getpid()); |
| unlink(tmpfname); |
| fd = open(tmpfname, O_CREAT | O_RDWR | O_EXCL, S_IRUSR | S_IWUSR); |
| if (fd == -1) { |
| printf(TNAME " Error at open(): %s\n", strerror(errno)); |
| return PTS_UNRESOLVED; |
| } |
| |
| unlink(tmpfname); |
| |
| /* install signal handler */ |
| |
| action.sa_sigaction = sig_handler; |
| sigemptyset(&action.sa_mask); |
| action.sa_flags = SA_SIGINFO | SA_RESTART; |
| if (sigaction(SIGRTMIN + 1, &action, NULL)) { |
| printf(TNAME " Error at sigaction(): %s\n", strerror(errno)); |
| return PTS_FAIL; |
| } |
| |
| /* create AIO req */ |
| |
| for (i = 0; i < BUF_NB; i++) { |
| aiocb = malloc(sizeof(struct aiocb)); |
| if (aiocb == NULL) { |
| printf(TNAME " Error at malloc(): %s\n", |
| strerror(errno)); |
| return PTS_FAIL; |
| } |
| |
| aiocb->aio_fildes = fd; |
| aiocb->aio_buf = malloc(BUF_SIZE); |
| if (aiocb->aio_buf == NULL) { |
| printf(TNAME " Error at malloc(): %s\n", |
| strerror(errno)); |
| return PTS_FAIL; |
| } |
| |
| aiocb->aio_nbytes = BUF_SIZE; |
| aiocb->aio_offset = 0; |
| |
| aiocb->aio_sigevent.sigev_notify = SIGEV_SIGNAL; |
| aiocb->aio_sigevent.sigev_signo = SIGRTMIN + 1; |
| aiocb->aio_sigevent.sigev_value.sival_ptr = aiocb; |
| aiocb->aio_reqprio = 0; |
| |
| aiocb_list[i] = aiocb; |
| } |
| |
| for (i = 0; i < BUF_NB; i++) { |
| if (aio_write(aiocb_list[i]) == -1) { |
| printf(TNAME " loop %d: Error at aio_write(): %s\n", |
| i, strerror(errno)); |
| return PTS_FAIL; |
| } |
| } |
| |
| /* try to cancel all |
| * we hope to have enough time to cancel at least one |
| */ |
| |
| if (aio_cancel(fd, NULL) == -1) { |
| printf(TNAME " Error at aio_cancel(): %s\n", strerror(errno)); |
| return PTS_FAIL; |
| } |
| |
| close(fd); |
| |
| while (countdown) |
| usleep(10000); |
| |
| if (!canceled) |
| return PTS_UNRESOLVED; |
| |
| printf("Test PASSED\n"); |
| return PTS_PASS; |
| } |