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
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Property svn:eol-style
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Property svn:mime-type
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File size:
701 bytes
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1 | #include "stdio_impl.h"
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2 | #include <string.h>
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3 |
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4 | #define MIN(a,b) ((a)<(b) ? (a) : (b))
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5 |
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6 | size_t fread(void *restrict destv, size_t size, size_t nmemb, FILE *restrict f)
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7 | {
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8 | unsigned char *dest = destv;
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9 | size_t len = size*nmemb, l = len, k;
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10 | if (!size) nmemb = 0;
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11 |
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12 | FLOCK(f);
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13 |
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14 | f->mode |= f->mode-1;
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15 |
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16 | if (f->rend - f->rpos > 0) {
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17 | /* First exhaust the buffer. */
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18 | k = MIN(f->rend - f->rpos, l);
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19 | memcpy(dest, f->rpos, k);
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20 | f->rpos += k;
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21 | dest += k;
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22 | l -= k;
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23 | }
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24 |
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25 | /* Read the remainder directly */
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26 | for (; l; l-=k, dest+=k) {
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27 | k = __toread(f) ? 0 : f->read(f, dest, l);
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28 | if (k+1<=1) {
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29 | FUNLOCK(f);
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30 | return (len-l)/size;
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31 | }
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32 | }
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33 |
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34 | FUNLOCK(f);
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35 | return nmemb;
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36 | }
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37 |
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38 | weak_alias(fread, fread_unlocked);
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