Last change
on this file since 417 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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native
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Property svn:mime-type
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text/x-csrc;charset=UTF-8
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File size:
793 bytes
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Rev | Line | |
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[398] | 1 | #include <sys/select.h>
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| 2 | #include <signal.h>
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| 3 | #include <stdint.h>
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| 4 | #include <errno.h>
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| 5 | #include "syscall.h"
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| 6 | #include "libc.h"
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| 7 |
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| 8 | int select(int n, fd_set *restrict rfds, fd_set *restrict wfds, fd_set *restrict efds, struct timeval *restrict tv)
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| 9 | {
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| 10 | #ifdef SYS_select
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| 11 | return syscall_cp(SYS_select, n, rfds, wfds, efds, tv);
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| 12 | #else
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| 13 | syscall_arg_t data[2] = { 0, _NSIG/8 };
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| 14 | struct timespec ts;
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| 15 | if (tv) {
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| 16 | if (tv->tv_sec < 0 || tv->tv_usec < 0)
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| 17 | return __syscall_ret(-EINVAL);
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| 18 | time_t extra_secs = tv->tv_usec / 1000000;
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| 19 | ts.tv_nsec = tv->tv_usec % 1000000 * 1000;
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| 20 | const time_t max_time = (1ULL<<8*sizeof(time_t)-1)-1;
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| 21 | ts.tv_sec = extra_secs > max_time - tv->tv_sec ?
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| 22 | max_time : tv->tv_sec + extra_secs;
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| 23 | }
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| 24 | return syscall_cp(SYS_pselect6, n, rfds, wfds, efds, tv ? &ts : 0, data);
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| 25 | #endif
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| 26 | }
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