nsnet.c File Reference

#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <assert.h>
#include <stdlib.h>
#include <nsnet.h>
#include <nsutil.h>
#include <monitor.h>
#include <signal.h>

Go to the source code of this file.

Data Structures
struct	FDHandlerEntry
Defines
#define	NUM_WRITEN   1
#define	NUM_READN   2
#define	NUM_MYREAD   3
#define	NUM_READLINE   4
#define	NUM_WRITEN2   5
#define	NUM_MAX   6
#define	NUM_QUIET
#define	MAXHANDLER   1024
#define	MAXREAD   16384
Functions
void	addCount (int where)
void	showCounts ()
int	isEOF (sock_t con, const struct InputBuffer *ib)
const char *	stringifyErrorCode (int code)
void	rshutdown (sock_t fd)
void	setblocking (sock_t sock_fd)
void	setnonblocking (sock_t sock_fd)
sock_t	rsocket (void)
void	sigPIPEHandler (int i)
int	rinitNetworking (void)
int	rbindAll (sock_t sock_fd)
int	rconnectName (sock_t sock_fd, const char *hostname, unsigned short portno)
sock_t	raccept (sock_t sock_fd)
int	writeString (sock_t con, const char *buf, struct OutputBuffer *ob)
int	rrecv (sock_t fd, char *read_buf, size_t count)
int	writeBytes (sock_t con, const char *buf, int size, struct OutputBuffer *ob)
void	initOutputBuffer (struct OutputBuffer *ob)
void	initInputBuffer (struct InputBuffer *ib)
int	my_read (sock_t fd, char *ptr, size_t maxlen, struct InputBuffer *ib)
size_t	readn (sock_t fd, void *vptr, size_t len, struct InputBuffer *ib)
size_t	writen (sock_t fd, const void *vptr, size_t len, struct OutputBuffer *ob)
size_t	readlinebuf (void **vptrptr, struct InputBuffer *ib)
int	inputBufferEmpty (const struct InputBuffer *ib)
int	getOK (sock_t sock_fd, struct InputBuffer *ib)
int	getResponseCode (sock_t sock_fd, struct InputBuffer *ib)
	Returns 1 if EOF.
int	rselect_timed (sock_t max_fd, fd_set *toread, fd_set *towrite, fd_set *toerr, struct timeval *tv)
int	rselect (sock_t max_fd, fd_set *toread, fd_set *towrite, fd_set *toerr)
int	readline (sock_t fd, char *vptr, size_t maxlen, struct InputBuffer *ib)
int	findFdIndex (sock_t fd)
	Searches for a given socket fd in the handler table, fdTable, returning index or -1 if not found.
int	makeNewEntryForFD (sock_t fd, void(*handler)(void *uobj, const char *data, size_t len), void *uobj)
int	setFdHandler (sock_t fd, void(*handler)(void *uobj, const char *data, size_t len), void *uobj)
int	removeFdHandler (sock_t fd)
int	handleReads (sock_t fd)
Variables
unsigned int	cur [NUM_MAX]
unsigned int	last [NUM_MAX]
FDHandlerEntry	fdTable [MAXHANDLER]
int	handlerCount

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Define Documentation

#define MAXHANDLER   1024

Definition at line 560 of file nsnet.c. Referenced by makeNewEntryForFD().

#define MAXREAD   16384

Definition at line 623 of file nsnet.c. Referenced by handleReads().

#define NUM_MAX   6

Definition at line 49 of file nsnet.c. Referenced by addCount(), and showCounts().

#define NUM_MYREAD   3

Definition at line 45 of file nsnet.c. Referenced by my_read().

#define NUM_QUIET

Definition at line 52 of file nsnet.c.

#define NUM_READLINE   4

Definition at line 46 of file nsnet.c. Referenced by readline().

#define NUM_READN   2

Definition at line 44 of file nsnet.c. Referenced by readn().

#define NUM_WRITEN   1

Definition at line 43 of file nsnet.c. Referenced by writen().

#define NUM_WRITEN2   5

Definition at line 47 of file nsnet.c. Referenced by writen().

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Function Documentation

void addCount (  int  where  )

Definition at line 56 of file nsnet.c. References cur, and NUM_MAX. Referenced by my_read(), readline(), readn(), and writen().

int findFdIndex (  sock_t  fd  )

Searches for a given socket fd in the handler table, fdTable, returning index or -1 if not found. Searches fdTable for the given fd in the array. Returns index if found. Parameters: fd  the fd to search for Returns: The index where fd is found, or -1 if not found Definition at line 575 of file nsnet.c. References FDHandlerEntry::fd, fdTable, and handlerCount. Referenced by handleReads(), removeFdHandler(), and setFdHandler().

int getOK (  sock_t  sock_fd, struct InputBuffer *  ib )

Definition at line 464 of file nsnet.c. References getResponseCode(), ib, rprintf(), and sock_fd. Referenced by main().

int getResponseCode (  sock_t  sock_fd, struct InputBuffer *  ib )

Returns 1 if EOF. Definition at line 482 of file nsnet.c. References ib, isEOF(), MAXLEN, readline(), and sock_fd. Referenced by getOK(), and main().

int handleReads (  sock_t  fd  )

Definition at line 624 of file nsnet.c. References fdTable, findFdIndex(), FDHandlerEntry::handler, MAXREAD, and rrecv().

void initInputBuffer (  struct InputBuffer *  ib  )

Definition at line 362 of file nsnet.c. References ib. Referenced by makeNewClient().

void initOutputBuffer (  struct OutputBuffer *  ob  )

Definition at line 357 of file nsnet.c. References ob. Referenced by makeNewClient().

int inputBufferEmpty (  const struct InputBuffer *  ib  )

Definition at line 459 of file nsnet.c. References ib, and InputBuffer::read_cnt. Referenced by main().

int isEOF (  sock_t  con, const struct InputBuffer *  ib )

Definition at line 76 of file nsnet.c. References ib, and InputBuffer::isEOF. Referenced by getResponseCode(), idleHandler(), and main().

int makeNewEntryForFD (  sock_t  fd, void(*  handler)(void *uobj, const char *data, size_t len), void *  uobj )

Definition at line 584 of file nsnet.c. References FDHandlerEntry::fd, fdTable, FDHandlerEntry::handler, handlerCount, MAXHANDLER, rprintf(), and FDHandlerEntry::uobj. Referenced by setFdHandler().

int my_read (  sock_t  fd, char *  ptr, size_t  maxlen, struct InputBuffer *  ib )

Definition at line 367 of file nsnet.c. References addCount(), ib, InputBuffer::isEOF, monitorLog(), NUM_MYREAD, PLACE_MYREAD, InputBuffer::read_buf, InputBuffer::read_cnt, InputBuffer::read_ptr, rprintf(), rrecv(), and showCounts(). Referenced by main(), and readline().

sock_t raccept (  sock_t  sock_fd  )

Definition at line 285 of file nsnet.c. References rprintf(), rsockaddr_t, sock_fd, sock_t, and stringifyErrorCode(). Referenced by main().

int rbindAll (  sock_t  sock_fd  )

Definition at line 213 of file nsnet.c. References DEFAULTPORT, MAXCLIENTS, rexit(), rprintf(), rsockaddr_t, and sock_fd. Referenced by main().

int rconnectName (  sock_t  sock_fd, const char *  hostname, unsigned short  portno )

Definition at line 244 of file nsnet.c. References hostent_t, monitorLog(), PLACE_CONNECT, rexit(), rprintf(), rsleep(), rsockaddr_t, and sock_fd. Referenced by main().

int readline (  sock_t  fd, char *  vptr, size_t  maxlen, struct InputBuffer *  ib )

Definition at line 529 of file nsnet.c. References addCount(), ib, my_read(), NUM_READLINE, setblocking(), and showCounts(). Referenced by getResponseCode(), idleHandler(), and main().

size_t readlinebuf (  void **  vptrptr, struct InputBuffer *  ib )

Definition at line 452 of file nsnet.c. References ib, InputBuffer::read_cnt, and InputBuffer::read_ptr.

size_t readn (  sock_t  fd, void *  vptr, size_t  len, struct InputBuffer *  ib )

Definition at line 409 of file nsnet.c. References addCount(), NUM_READN, and showCounts().

int removeFdHandler (  sock_t  fd  )

Definition at line 611 of file nsnet.c. References fdTable, findFdIndex(), and handlerCount.

int rinitNetworking (  void   )

Definition at line 198 of file nsnet.c. References sigPIPEHandler(). Referenced by main().

int rrecv (  sock_t  fd, char *  read_buf, size_t  count )

Definition at line 315 of file nsnet.c. References monitorLog(), and PLACE_RRECV. Referenced by handleReads(), and my_read().

int rselect (  sock_t  max_fd, fd_set *  toread, fd_set *  towrite, fd_set *  toerr )

Definition at line 512 of file nsnet.c. References max_fd, monitorLog(), and PLACE_RSELECT. Referenced by idleHandler(), and main().

int rselect_timed (  sock_t  max_fd, fd_set *  toread, fd_set *  towrite, fd_set *  toerr, struct timeval *  tv )

Definition at line 504 of file nsnet.c. References max_fd. Referenced by main().

void rshutdown (  sock_t  fd  )

Definition at line 124 of file nsnet.c. Referenced by main().

sock_t rsocket (  void   )

Definition at line 186 of file nsnet.c. References setnonblocking(), sock_fd, and sock_t. Referenced by main().

void setblocking (  sock_t  sock_fd  )

Definition at line 133 of file nsnet.c. References monitorLog(), PLACE_SETBLOCKING, rexit(), and sock_fd. Referenced by main(), readline(), and writeBytes().

int setFdHandler (  sock_t  fd, void(*  handler)(void *uobj, const char *data, size_t len), void *  uobj )

Definition at line 598 of file nsnet.c. References fdTable, findFdIndex(), FDHandlerEntry::handler, makeNewEntryForFD(), and FDHandlerEntry::uobj.

void setnonblocking (  sock_t  sock_fd  )

Definition at line 160 of file nsnet.c. References rexit(), rprintf(), and sock_fd. Referenced by rsocket(), and writeBytes().

void showCounts (   )

Definition at line 62 of file nsnet.c. References cur, NUM_MAX, and rprintf(). Referenced by my_read(), readline(), readn(), and writen().

void sigPIPEHandler (  int  i  )

Definition at line 194 of file nsnet.c. Referenced by rinitNetworking().

const char* stringifyErrorCode (  int  code  )

Definition at line 81 of file nsnet.c. References buf, and OSTYPESTR. Referenced by monitorLog(), and raccept().

int writeBytes (  sock_t  con, const char *  buf, int  size, struct OutputBuffer *  ob )

Definition at line 334 of file nsnet.c. References buf, MAXLEN, monitorLog(), PLACE_WRITEBYTES, rprintf(), setblocking(), and setnonblocking(). Referenced by main(), and writeString().

size_t writen (  sock_t  fd, const void *  vptr, size_t  len, struct OutputBuffer *  ob )

Definition at line 430 of file nsnet.c. References addCount(), NUM_WRITEN, NUM_WRITEN2, and showCounts(). Referenced by handleSamples(), and sendClientMsg().

int writeString (  sock_t  con, const char *  buf, struct OutputBuffer *  ob )

Definition at line 310 of file nsnet.c. References buf, ob, and writeBytes(). Referenced by handleSamples(), and main().

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Variable Documentation

unsigned int cur[NUM_MAX]

Definition at line 54 of file nsnet.c. Referenced by addCount(), idleHandler(), main(), and showCounts().

struct FDHandlerEntry fdTable[MAXHANDLER]

Definition at line 567 of file nsnet.c. Referenced by findFdIndex(), handleReads(), makeNewEntryForFD(), removeFdHandler(), and setFdHandler().

int handlerCount

Table of stream handlers * Definition at line 568 of file nsnet.c. Referenced by findFdIndex(), makeNewEntryForFD(), and removeFdHandler().

unsigned int last[NUM_MAX]

Definition at line 54 of file nsnet.c.

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