#pragma once


#ifdef __cplusplus
extern "C" {
#endif

enum {
    kMacSocket_TimeoutErr = -2
};

// Since MacSocket does busy waiting, I do a callback while waiting

typedef OSErr(*MacSocket_IdleWaitCallback) (void *);

// Call this before anything else!

OSErr MacSocket_Startup(void);

// Call this to cleanup before quitting

OSErr MacSocket_Shutdown(void);

// Call this to allocate a "socket" (reference number is returned in
// outSocketNum)
// Note that inDoThreadSwitching is pretty much irrelevant right now, since I
// ignore it
// The inTimeoutTicks parameter is applied during reads/writes of data
// The inIdleWaitCallback parameter specifies a callback which is called
// during busy-waiting periods
// The inUserRefPtr parameter is passed back to the idle-wait callback

OSErr MacSocket_socket(int *outSocketNum, const Boolean inDoThreadSwitching,
                       const long inTimeoutTicks,
                       MacSocket_IdleWaitCallback inIdleWaitCallback,
                       void *inUserRefPtr);

// Call this to connect to an IP/DNS address
// Note that inTargetAddressAndPort is in "IP:port" format-- e.g.
// 10.1.1.1:123

OSErr MacSocket_connect(const int inSocketNum, char *inTargetAddressAndPort);

// Call this to listen on a port
// Since this a low-performance implementation, I allow a maximum of 1 (one!)
// incoming request when I listen

OSErr MacSocket_listen(const int inSocketNum, const int inPortNum);

// Call this to close a socket

OSErr MacSocket_close(const int inSocketNum);

// Call this to receive data on a socket
// Most parameters' purpose are obvious-- except maybe "inBlock" which
// controls whether I wait for data or return immediately

int MacSocket_recv(const int inSocketNum, void *outBuff, int outBuffLength,
                   const Boolean inBlock);

// Call this to send data on a socket

int MacSocket_send(const int inSocketNum, const void *inBuff,
                   int inBuffLength);

// If zero bytes were read in a call to MacSocket_recv(), it may be that the
// remote end has done a half-close
// This function will let you check whether that's true or not

Boolean MacSocket_RemoteEndIsClosing(const int inSocketNum);

// Call this to see if the listen has completed after a call to
// MacSocket_listen()

Boolean MacSocket_ListenCompleted(const int inSocketNum);

// These really aren't very useful anymore

Boolean MacSocket_LocalEndIsOpen(const int inSocketNum);
Boolean MacSocket_RemoteEndIsOpen(const int inSocketNum);

// You may wish to change the userRefPtr for a socket callback-- use this to
// do it

void MacSocket_SetUserRefPtr(const int inSocketNum, void *inNewRefPtr);

// Call these to get the socket's IP:port descriptor

void MacSocket_GetLocalIPAndPort(const int inSocketNum, char *outIPAndPort,
                                 const int inIPAndPortLength);
void MacSocket_GetRemoteIPAndPort(const int inSocketNum, char *outIPAndPort,
                                  const int inIPAndPortLength);

// Call this to get error info from a socket

void MacSocket_GetSocketErrorInfo(const int inSocketNum,
                                  int *outSocketErrCode,
                                  char *outSocketErrString,
                                  const int inSocketErrStringMaxLength);


#ifdef __cplusplus
}
#endif