#ifndef _POLL_MSW_H_ #define _POLL_MSW_H_ #include #if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0600) /* Event types that can be polled for. These bits may be set in `events' to indicate the interesting event types; they will appear in `revents' to indicate the status of the file descriptor. */ #define POLLIN 0x001 /* There is data to read. */ #define POLLPRI 0x002 /* There is urgent data to read. */ #define POLLOUT 0x004 /* Writing now will not block. */ /* Event types always implicitly polled for. These bits need not be set in `events', but they will appear in `revents' to indicate the status of the file descriptor. */ #define POLLERR 0x008 /* Error condition. */ #define POLLHUP 0x010 /* Hung up. */ #define POLLNVAL 0x020 /* Invalid polling request. */ /* Data structure describing a polling request. */ struct pollfd { int fd; /* File descriptor to poll. */ short int events; /* Types of events poller cares about. */ short int revents; /* Types of events that actually occurred. */ }; /* Poll the file descriptors described by the NFDS structures starting at FDS. If TIMEOUT is nonzero and not -1, allow TIMEOUT milliseconds for an event to occur; if TIMEOUT is -1, block until an event occurs. Returns the number of file descriptors with events, zero if timed out, or -1 for errors. */ #endif typedef unsigned long nfds_t; #if defined(__cplusplus) extern "C" { #endif int poll (struct pollfd *pfd, nfds_t nfd, int timeout); #if defined(__cplusplus) } #endif #endif