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File:  [ELWIX - Embedded LightWeight unIX -] / libaitio / example / test_aio.c
Revision 1.3: download - view: text, annotated - select for diffs - revision graph
Wed Mar 13 14:54:38 2013 UTC (11 years, 3 months ago) by misho
Branches: MAIN
CVS tags: io7_4, io7_3, io7_2, io7_1, io7_0, io6_9, io6_8, io6_7, io6_6, io6_5, io6_4, io6_3, io6_2, io6_1, io6_0, io5_9, io5_8, io5_7, io5_6, io5_5, io5_4, io5_3, io5_2, io5_1, IO7_3, IO7_2, IO7_1, IO7_0, IO6_9, IO6_8, IO6_7, IO6_6, IO6_5, IO6_4, IO6_3, IO6_2, IO6_1, IO6_0, IO5_9, IO5_8, IO5_7, IO5_6, IO5_5, IO5_4, IO5_3, IO5_2, IO5_1, IO5_0, HEAD
version 5.0

    1: #include <stdio.h>
    2: #include <string.h>
    3: #include <unistd.h>
    4: #include <fcntl.h>
    5: #include <elwix.h>
    6: #include <aitio.h>
    7: 
    8: 
    9: int
   10: main(int argc, char **argv)
   11: {
   12: 	int f, ret, i;
   13: 	char buf[BUFSIZ];
   14: 	struct iovec iv[3];
   15: 
   16: 	iv[0].iov_len = 10;
   17: 	iv[0].iov_base = e_malloc(iv[0].iov_len);
   18: 	iv[0].iov_len--;
   19: 	iv[1].iov_len = 2;
   20: 	iv[1].iov_base = e_malloc(iv[1].iov_len);
   21: 	iv[1].iov_len--;
   22: 	iv[2].iov_len = 20;
   23: 	iv[2].iov_base = e_malloc(iv[2].iov_len);
   24: 	iv[2].iov_len--;
   25: 
   26: 	f = open("test_aio.dat", O_CREAT | O_RDWR | O_TRUNC, 0644);
   27: 	if (f == -1) {
   28: 		perror("open");
   29: 		return 1;
   30: 	}
   31: 
   32: 	while (!feof(stdin)) {
   33: 		memset(buf, 0, sizeof buf);
   34: 		fgets(buf, sizeof buf, stdin);
   35: 		printf("io_write=%d\n", (ret = io_write(f, buf, strlen(buf))));
   36: 		if (ret == -1) {
   37: 			ELIBERR(io);
   38: 			return 2;
   39: 		}
   40: 	}
   41: 
   42: 	memset(buf, 0, sizeof buf);
   43: 	printf("io_read=%d\n", (ret = io_rread(f, buf, sizeof buf, 0, 0)));
   44: 	if (ret == -1) {
   45: 		ELIBERR(io);
   46: 		return 3;
   47: 	}
   48: 	printf("\n\n%s\n", buf);
   49: 
   50: 	printf("io_readv=%d\n", (ret = io_rreadv(f, iv, 3, (off_t) 0, 1)));
   51: 	for (i = 0; i < 3; i++) {
   52: 		printf("%d) len=%d - %s\n---\n", i, iv[i].iov_len, iv[i].iov_base);
   53: 		e_free(iv[i].iov_base);
   54: 	}
   55: 
   56: 	iv[0].iov_base = e_strdup("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n");
   57: 	iv[0].iov_len = strlen(iv[0].iov_base) + 1;
   58: 	iv[1].iov_base = e_strdup("bbbbbbbbbbbbbbbb\n");
   59: 	iv[1].iov_len = strlen(iv[1].iov_base) + 1;
   60: 	iv[2].iov_base = e_strdup("sdgnsjkfgbfgbfjhbjjjjjjjjjjjjjjjj\n");
   61: 	iv[2].iov_len = strlen(iv[2].iov_base) + 1;
   62: 	printf("io_writev=%d\n", (ret = io_rwritev(f, iv, 3, 0, 1)));
   63: 	for (i = 0; i < 3; i++)
   64: 		memset(iv[i].iov_base, 0, iv[i].iov_len);
   65: 
   66: 	printf("io_readv=%d\n", (ret = io_rreadv(f, iv, 3, 0, 1)));
   67: 	for (i = 0; i < 3; i++) {
   68: 		printf("%d) len=%d - %s\n---\n", i, iv[i].iov_len, iv[i].iov_base);
   69: 		e_free(iv[i].iov_base);
   70: 	}
   71: 
   72: 	close(f);
   73: 
   74: 	/*
   75: 	for (i = 0; i < 3; i++)
   76: 		e_free(iv[i].iov_base);
   77: 		*/
   78: 	return 0;
   79: }
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