/* * Test async syscalls * Copyright (C) Volker Lendecke 2012 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "asys.h" #include <stdio.h> #include <string.h> #include <stdlib.h> #include <errno.h> int main(int argc, const char *argv[]) { struct asys_context *ctx; int i, fd, ret; int *buf; int ntasks = 10; ret = asys_context_init(&ctx, 0); if (ret != 0) { perror("asys_context_create failed"); return 1; } fd = open("asys_testfile", O_CREAT|O_RDWR, 0644); if (fd == -1) { perror("open failed"); return 1; } buf = calloc(ntasks, sizeof(int)); if (buf == NULL) { perror("calloc failed"); return 1; } for (i=0; i<ntasks; i++) { buf[i] = i; } for (i=0; i<ntasks; i++) { ret = asys_pwrite(ctx, fd, &buf[i], sizeof(int), i * sizeof(int), &buf[i]); if (ret != 0) { errno = ret; perror("asys_pwrite failed"); return 1; } } for (i=0; i<ntasks; i++) { void *priv; ssize_t retval; int err; int *pidx; ret = asys_result(ctx, &retval, &err, &priv); if (ret == -1) { errno = ret; perror("asys_result failed"); return 1; } pidx = (int *)priv; printf("%d returned %d\n", *pidx, (int)retval); } ret = asys_context_destroy(ctx); if (ret != 0) { perror("asys_context_delete failed"); return 1; } free(buf); return 0; }