Last change
on this file since 388 was 388, checked in by coas-nagasima, 5 years ago |
Azure IoT Hub Device C SDK を使ったサンプルの追加
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Property svn:eol-style
set to
native
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Property svn:keywords
set to
Id
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Property svn:mime-type
set to
text/x-csrc
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File size:
883 bytes
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Rev | Line | |
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[388] | 1 | #include "stdio_impl.h"
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| 2 |
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| 3 | int __fseeko_unlocked(FILE *f, off_t off, int whence)
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| 4 | {
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| 5 | /* Adjust relative offset for unread data in buffer, if any. */
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| 6 | if (whence == SEEK_CUR) off -= f->rend - f->rpos;
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| 7 |
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| 8 | /* Flush write buffer, and report error on failure. */
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| 9 | if (f->wpos > f->wbase) {
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| 10 | f->write(f, 0, 0);
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| 11 | if (!f->wpos) return -1;
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| 12 | }
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| 13 |
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| 14 | /* Leave writing mode */
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| 15 | f->wpos = f->wbase = f->wend = 0;
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| 16 |
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| 17 | /* Perform the underlying seek. */
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| 18 | if (f->seek(f, off, whence) < 0) return -1;
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| 19 |
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| 20 | /* If seek succeeded, file is seekable and we discard read buffer. */
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| 21 | f->rpos = f->rend = 0;
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| 22 | f->flags &= ~F_EOF;
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| 23 |
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| 24 | return 0;
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| 25 | }
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| 26 |
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| 27 | int __fseeko(FILE *f, off_t off, int whence)
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| 28 | {
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| 29 | int result;
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| 30 | FLOCK(f);
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| 31 | result = __fseeko_unlocked(f, off, whence);
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| 32 | FUNLOCK(f);
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| 33 | return result;
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| 34 | }
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| 35 |
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| 36 | int fseek(FILE *f, long off, int whence)
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| 37 | {
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| 38 | return __fseeko(f, off, whence);
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| 39 | }
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| 40 |
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| 41 | weak_alias(__fseeko, fseeko);
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| 42 |
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| 43 | LFS64(fseeko);
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