kaguya
44 lines
1.0 KiB
C++
44 lines
1.0 KiB
C++
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#include <errno.h>
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#include <poll.h>
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#include <bits/ensure.h>
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#include <mlibc/debug.hpp>
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#include <mlibc/posix-sysdeps.hpp>
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int poll(struct pollfd *fds, nfds_t count, int timeout) {
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int num_events;
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MLIBC_CHECK_OR_ENOSYS(mlibc::sys_poll, -1);
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if(int e = mlibc::sys_poll(fds, count, timeout, &num_events); e) {
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errno = e;
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return -1;
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}
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return num_events;
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}
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#if __MLIBC_LINUX_OPTION
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#include <mlibc/linux-sysdeps.hpp>
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int ppoll(struct pollfd *fds, nfds_t nfds, const struct timespec *timeout_ts, const sigset_t *sigmask) {
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if (mlibc::sys_ppoll) {
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int num_events;
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if(int e = mlibc::sys_ppoll(fds, nfds, timeout_ts, sigmask, &num_events); e) {
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errno = e;
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return -1;
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}
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return num_events;
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}
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sigset_t origmask;
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int timeout = (timeout_ts == nullptr) ? -1 : (timeout_ts->tv_sec * 1000 + timeout_ts->tv_nsec / 1000000);
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sigprocmask(SIG_SETMASK, sigmask, &origmask);
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int ready = poll(fds, nfds, timeout);
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sigprocmask(SIG_SETMASK, &origmask, nullptr);
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return ready;
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}
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#endif // __MLIBC_LINUX_OPTION
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