1 | #include <sys/types.h> |
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2 | #include <sys/wait.h> |
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3 | #include <unistd.h> |
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4 | #include <signal.h> |
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5 | |
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6 | #include "aio_setup.h" |
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7 | #include <sys/mman.h> |
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8 | |
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9 | #define SIZE 768*1024*1024 |
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10 | |
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11 | //just submit an I/O |
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12 | |
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13 | int test_child(void) |
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14 | { |
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15 | char *buf; |
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16 | int rwfd; |
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17 | int res; |
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18 | long size; |
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19 | struct iocb iocb; |
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20 | struct iocb *iocbs[] = { &iocb }; |
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21 | int loop = 10; |
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22 | int i; |
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23 | |
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24 | aio_setup(1024); |
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25 | |
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26 | size = SIZE; |
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27 | |
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28 | printf("size = %ld\n", size); |
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29 | |
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30 | rwfd = open("testdir/rwfile", O_RDWR); assert(rwfd != |
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31 | -1); |
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32 | res = ftruncate(rwfd, 0); assert(res == 0); |
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33 | buf = malloc(size); assert(buf != |
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34 | NULL); |
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35 | |
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36 | for(i=0;i<loop;i++) { |
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37 | |
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38 | switch(i%2) { |
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39 | case 0: |
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40 | io_prep_pwrite(&iocb, rwfd, buf, size, 0); |
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41 | break; |
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42 | case 1: |
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43 | io_prep_pread(&iocb, rwfd, buf, size, 0); |
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44 | } |
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45 | |
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46 | res = io_submit(io_ctx, 1, iocbs); |
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47 | if (res != 1) { |
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48 | printf("child: submit: io_submit res=%d [%s]\n", res, |
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49 | strerror(-res)); |
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50 | _exit(1); |
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51 | } |
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52 | } |
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53 | |
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54 | res = ftruncate(rwfd, 0); assert(res == 0); |
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55 | |
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56 | _exit(0); |
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57 | } |
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58 | |
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59 | /* from 12.t */ |
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60 | int test_main(void) |
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61 | { |
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62 | int res, status; |
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63 | pid_t pid; |
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64 | |
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65 | if (attempt_io_submit(io_ctx, 0, NULL, 0)) |
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66 | return 1; |
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67 | |
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68 | sigblock(sigmask(SIGCHLD) | siggetmask()); |
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69 | fflush(NULL); |
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70 | pid = fork(); assert(pid != -1); |
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71 | |
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72 | if (pid == 0) |
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73 | test_child(); |
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74 | |
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75 | res = waitpid(pid, &status, 0); |
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76 | |
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77 | if (WIFEXITED(status)) { |
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78 | int failed = (WEXITSTATUS(status) != 0); |
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79 | printf("child exited with status %d%s\n", WEXITSTATUS(status), |
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80 | failed ? " -- FAILED" : ""); |
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81 | return failed; |
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82 | } |
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83 | |
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84 | /* anything else: failed */ |
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85 | if (WIFSIGNALED(status)) |
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86 | printf("child killed by signal %d -- FAILED.\n", |
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87 | WTERMSIG(status)); |
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88 | |
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89 | return 1; |
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90 | } |
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