mirror of
https://github.com/fluencelabs/wasmer
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36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
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/*
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* Copyright 2016 The Emscripten Authors. All rights reserved.
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* Emscripten is available under two separate licenses, the MIT license and the
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* University of Illinois/NCSA Open Source License. Both these licenses can be
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* found in the LICENSE file.
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*/
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#include <stdio.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <poll.h>
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int main() {
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struct pollfd multi[5];
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multi[0].fd = open("/file", O_RDONLY, 0777);
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multi[1].fd = open("/device", O_RDONLY, 0777);
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multi[2].fd = 123;
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multi[3].fd = open("/file", O_RDONLY, 0777);
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multi[4].fd = open("/file", O_RDONLY, 0777);
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multi[0].events = POLLIN | POLLOUT | POLLNVAL | POLLERR;
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multi[1].events = POLLIN | POLLOUT | POLLNVAL | POLLERR;
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multi[2].events = POLLIN | POLLOUT | POLLNVAL | POLLERR;
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multi[3].events = 0x00;
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multi[4].events = POLLOUT | POLLNVAL | POLLERR;
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printf("ret: %d\n", poll(multi, 5, 123));
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printf("errno: %d\n", errno);
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printf("multi[0].revents: %d\n", multi[0].revents == (POLLIN | POLLOUT));
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printf("multi[1].revents: %d\n", multi[1].revents == (POLLIN | POLLOUT));
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printf("multi[2].revents: %d\n", multi[2].revents == POLLNVAL);
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printf("multi[3].revents: %d\n", multi[3].revents == 0);
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printf("multi[4].revents: %d\n", multi[4].revents == POLLOUT);
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return 0;
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}
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