Last change
on this file since 413 was 398, checked in by coas-nagasima, 5 years ago |
mbedTLS版Azure IoT Hub接続サンプルのソースコードを追加
|
-
Property svn:eol-style
set to
native
-
Property svn:mime-type
set to
text/x-csrc;charset=UTF-8
|
File size:
544 bytes
|
Rev | Line | |
---|
[398] | 1 | #include "stdio_impl.h"
|
---|
| 2 | #include <sys/uio.h>
|
---|
| 3 |
|
---|
| 4 | size_t __stdio_read(FILE *f, unsigned char *buf, size_t len)
|
---|
| 5 | {
|
---|
| 6 | struct iovec iov[2] = {
|
---|
| 7 | { .iov_base = buf, .iov_len = len - !!f->buf_size },
|
---|
| 8 | { .iov_base = f->buf, .iov_len = f->buf_size }
|
---|
| 9 | };
|
---|
| 10 | ssize_t cnt;
|
---|
| 11 |
|
---|
| 12 | cnt = syscall(SYS_readv, f->fd, iov, 2);
|
---|
| 13 | if (cnt <= 0) {
|
---|
| 14 | f->flags |= F_EOF ^ ((F_ERR^F_EOF) & cnt);
|
---|
| 15 | return cnt;
|
---|
| 16 | }
|
---|
| 17 | if (cnt <= iov[0].iov_len) return cnt;
|
---|
| 18 | cnt -= iov[0].iov_len;
|
---|
| 19 | f->rpos = f->buf;
|
---|
| 20 | f->rend = f->buf + cnt;
|
---|
| 21 | if (f->buf_size) buf[len-1] = *f->rpos++;
|
---|
| 22 | return len;
|
---|
| 23 | }
|
---|
Note:
See
TracBrowser
for help on using the repository browser.