bart | e6eb794 | 2013-08-24 17:50:38 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Reproducer for bug #323905. See also |
| 3 | * http://bugs.kde.org/show_bug.cgi?id=323905. |
| 4 | */ |
| 5 | |
| 6 | #include <climits> /* PTHREAD_STACK_MIN */ |
| 7 | #include <cstdio> /* fprintf() */ |
| 8 | #include <fcntl.h> /* O_RDONLY */ |
| 9 | #include <pthread.h> |
| 10 | #include <unistd.h> /* close() */ |
| 11 | |
| 12 | /* Happens with two threads also */ |
| 13 | #define THREAD_COUNT 256 |
| 14 | |
| 15 | void* thread(void*) |
| 16 | { |
| 17 | int fd; |
| 18 | |
| 19 | /* Happens with any file, not just /dev/null */ |
| 20 | fd = open("/dev/null", O_RDONLY); |
| 21 | if (fd >= 0) |
| 22 | close(fd); |
| 23 | else |
| 24 | fprintf(stderr, "Failed to open /dev/null\n"); |
| 25 | return 0; |
| 26 | } |
| 27 | |
| 28 | int main() |
| 29 | { |
| 30 | int i, r; |
| 31 | pthread_attr_t attr; |
| 32 | pthread_t threads[THREAD_COUNT]; |
| 33 | |
| 34 | pthread_attr_init(&attr); |
| 35 | pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN); |
| 36 | for (i = 0; i < THREAD_COUNT; ++i) { |
| 37 | r = pthread_create(&threads[i], &attr, thread, 0); |
| 38 | if (r != 0) { |
| 39 | fprintf(stderr, "Failed to create thread %d\n", i); |
| 40 | return 1; |
| 41 | } |
| 42 | } |
| 43 | pthread_attr_destroy(&attr); |
| 44 | for (i = 0; i < THREAD_COUNT; ++i) { |
| 45 | r = pthread_join(threads[i], 0); |
| 46 | if (r != 0) { |
| 47 | fprintf(stderr, "Failed to join thread %d\n", i); |
| 48 | return 1; |
| 49 | } |
| 50 | } |
| 51 | fprintf(stderr, "Done.\n"); |
| 52 | return 0; |
| 53 | } |