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/*
* Copyright 2016 The Emscripten Authors. All rights reserved.
* Emscripten is available under two separate licenses, the MIT license and the
* University of Illinois/NCSA Open Source License. Both these licenses can be
* found in the LICENSE file.
*/
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <poll.h>
#include <emscripten.h>
int main() {
EM_ASM(
var dummy_device = FS.makedev(64, 0);
FS.registerDevice(dummy_device, {});
FS.createDataFile('/', 'file', 'abcdef', true, true, false);
FS.mkdev('/device', dummy_device);
);
struct pollfd multi[5];
multi[0].fd = open("/file", O_RDWR, 0777);
multi[1].fd = open("/device", O_RDWR, 0777);
multi[2].fd = 123;
multi[3].fd = open("/file", O_RDWR, 0777);
multi[4].fd = open("/file", O_RDWR, 0777);
multi[0].events = POLLIN | POLLOUT | POLLNVAL | POLLERR;
multi[1].events = POLLIN | POLLOUT | POLLNVAL | POLLERR;
multi[2].events = POLLIN | POLLOUT | POLLNVAL | POLLERR;
multi[3].events = 0x00;
multi[4].events = POLLOUT | POLLNVAL | POLLERR;
printf("ret: %d\n", poll(multi, 5, 123));
printf("errno: %d\n", errno);
printf("multi[0].revents: %d\n", multi[0].revents == (POLLIN | POLLOUT));
#if WASMFS
// TODO: Add support for POLLIN. The size of the device is 0 in WasmFS, so
// devices cannot POLLIN.
printf("multi[1].revents: %d\n", multi[1].revents == POLLOUT);
#else
printf("multi[1].revents: %d\n", multi[1].revents == (POLLIN | POLLOUT));
#endif
printf("multi[2].revents: %d\n", multi[2].revents == POLLNVAL);
printf("multi[3].revents: %d\n", multi[3].revents == 0);
printf("multi[4].revents: %d\n", multi[4].revents == POLLOUT);
return 0;
}
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