From 7aa5e059a8f66d91bd8b69c58c657ceb70b4baff Mon Sep 17 00:00:00 2001 From: danieldg Date: Wed, 30 Sep 2009 18:31:05 +0000 Subject: Remove include/inspircd_se_config.h and socketengine-specific headers git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@11784 e03df62e-2008-0410-955e-edbf42e46eb7 --- src/socketengines/socketengine_iocp.cpp | 234 +++++++++++++++++++++++++++++++- 1 file changed, 233 insertions(+), 1 deletion(-) (limited to 'src/socketengines/socketengine_iocp.cpp') diff --git a/src/socketengines/socketengine_iocp.cpp b/src/socketengines/socketengine_iocp.cpp index c253bf0a6..ad45ce5ce 100644 --- a/src/socketengines/socketengine_iocp.cpp +++ b/src/socketengines/socketengine_iocp.cpp @@ -11,7 +11,234 @@ * --------------------------------------------------- */ -#include "socketengines/socketengine_iocp.h" +/* +------------------------------------+ + * | Inspire Internet Relay Chat Daemon | + * +------------------------------------+ + * + * InspIRCd: (C) 2002-2009 InspIRCd Development Team + * See: http://wiki.inspircd.org/Credits + * + * This program is free but copyrighted software; see + * the file COPYING for details. + * + * --------------------------------------------------- + */ + +#ifndef __SOCKETENGINE_IOCP__ +#define __SOCKETENGINE_IOCP__ + +#define READ_BUFFER_SIZE 600 +#define USING_IOCP 1 + +#include "inspircd_config.h" +#include "inspircd_win32wrapper.h" +#include "inspircd.h" +#include "socketengine.h" + +/** Socket overlapped event types + */ +enum SocketIOEvent +{ + /** Read ready */ + SOCKET_IO_EVENT_READ_READY = 0, + /** Write ready */ + SOCKET_IO_EVENT_WRITE_READY = 1, + /** Accept ready */ + SOCKET_IO_EVENT_ACCEPT = 2, + /** Error occured */ + SOCKET_IO_EVENT_ERROR = 3, + /** Number of events */ + NUM_SOCKET_IO_EVENTS = 4, +}; + +/** Represents a windows overlapped IO event + */ +class Overlapped +{ + public: + /** Overlap event */ + OVERLAPPED m_overlap; + /** Type of event */ + SocketIOEvent m_event; +#ifdef WIN64 + /** Parameters */ + unsigned __int64 m_params; +#else + /** Parameters */ + unsigned long m_params; +#endif + /** Create an overlapped event + */ + Overlapped(SocketIOEvent ev, int params) : m_event(ev), m_params(params) + { + memset(&m_overlap, 0, sizeof(OVERLAPPED)); + } +}; + +/** Specific to UDP sockets with overlapped IO + */ +struct udp_overlap +{ + unsigned char udp_buffer[600]; + unsigned long udp_len; + sockaddr udp_sockaddr[2]; + unsigned long udp_sockaddr_len; +}; + +/** Specific to accepting sockets with overlapped IO + */ +struct accept_overlap +{ + int socket; + char buf[1024]; +}; + +/** Implementation of SocketEngine that implements windows IO Completion Ports + */ +class IOCPEngine : public SocketEngine +{ + /** Creates a "fake" file descriptor for use with an IOCP socket. + * This is a little slow, but it isnt called too much. We'll fix it + * in a future release. + * @return -1 if there are no free slots, and an integer if it finds one. + */ + __inline int GenerateFd(int RealFd) + { + int index_hash = RealFd % MAX_DESCRIPTORS; + if(ref[index_hash] == 0) + return index_hash; + else + { + register int i = 0; + for(; i < MAX_DESCRIPTORS; ++i) + if(ref[i] == 0) + return i; + } + return -1; + } + + /** Global I/O completion port that sockets attach to. + */ + HANDLE m_completionPort; + + /** This is kinda shitty... :/ for getting an address from a real fd. + */ + std::map m_binding; + +public: + /** Holds the preallocated buffer passed to WSARecvFrom + * function. Yes, I know, it's a dirty hack. + */ + udp_overlap * udp_ov; + + /** Creates an IOCP Socket Engine + * @param Instance The creator of this object + */ + IOCPEngine(); + + /** Deletes an IOCP socket engine and all the attached sockets + */ + ~IOCPEngine(); + + /** Adds an event handler to the completion port, and sets up initial events. + * @param eh EventHandler to add + * @return True if success, false if no room + */ + bool AddFd(EventHandler* eh, int event_mask); + + /** Gets the maximum number of file descriptors that this engine can handle. + * @return The number of file descriptors + */ + __inline int GetMaxFds() { return MAX_DESCRIPTORS; } + + /** Gets the number of free/remaining file descriptors under this engine. + * @return Remaining count + */ + __inline int GetRemainingFds() + { + register int count = 0; + register int i = 0; + for(; i < MAX_DESCRIPTORS; ++i) + if(ref[i] == 0) + ++count; + return count; + } + + /** Removes a file descriptor from the set, preventing it from receiving any more events + * @return True if remove was successful, false otherwise + */ + bool DelFd(EventHandler* eh, bool force = false); + + /** Called every loop to handle input/output events for all sockets under this engine + * @return The number of "changed" sockets. + */ + int DispatchEvents(); + + /** Gets the name of this socket engine as a string. + * @return string of socket engine name + */ + std::string GetName(); + + void OnSetEvent(EventHandler* eh, int old_mask, int new_mask); + + /** Posts a completion event on the specified socket. + * @param eh EventHandler for message + * @param type Event Type + * @param param Event Parameter + * @return True if added, false if not + */ + bool PostCompletionEvent(EventHandler* eh, SocketIOEvent type, int param); + + /** Posts a read event on the specified socket + * @param eh EventHandler (socket) + */ + void PostReadEvent(EventHandler* eh); + + /** Posts an accept event on the specified socket + * @param eh EventHandler (socket) + */ + void PostAcceptEvent(EventHandler* eh); + + /** Returns the EventHandler attached to a specific fd. + * If the fd isnt in the socketengine, returns NULL. + * @param fd The event handler to look for + * @return A pointer to the event handler, or NULL + */ + EventHandler* GetRef(int fd); + + /** Returns true if a file descriptor exists in + * the socket engine's list. + * @param fd The event handler to look for + * @return True if this fd has an event handler + */ + bool HasFd(int fd); + + /** Returns the EventHandler attached to a specific fd. + * If the fd isnt in the socketengine, returns NULL. + * @param fd The event handler to look for + * @return A pointer to the event handler, or NULL + */ + EventHandler* GetIntRef(int fd); + + bool BoundsCheckFd(EventHandler* eh); + + virtual int Accept(EventHandler* fd, sockaddr *addr, socklen_t *addrlen); + + virtual int RecvFrom(EventHandler* fd, void *buf, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen); + + virtual int Blocking(int fd); + + virtual int NonBlocking(int fd); + + virtual int GetSockName(EventHandler* fd, sockaddr *name, socklen_t* namelen); + + virtual int Close(int fd); + + virtual int Close(EventHandler* fd); +}; + +#endif + #include "exitcodes.h" #include @@ -526,3 +753,8 @@ int IOCPEngine::Close(EventHandler* fd) { return this->Close(fd->GetFd()); } + +SocketEngine* CreateSocketEngine() +{ + return new IOCPEngine; +} -- cgit v1.2.3