serverlib.c File Reference

Server library functions and datatypes. More...

#include "config.h"
#include "defines.h"
#include <stdlib.h>
#include <stdio.h>
#include <pthread.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <unistd.h>
#include <sys/un.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <time.h>
#include <gdome.h>
#include <sys/param.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <sys/sem.h>
#include "semaphores.h"
#include "shm_locking.h"
#include "cf_pthread.h"
#include "hashlib.h"
#include "utils.h"
#include "configparser.h"
#include "readline.h"
#include "fo_server.h"
#include "serverlib.h"
#include "xml_handling.h"
#include "charconvert.h"
#include "archiver.h"

Go to the source code of this file.

Functions
int	cf_register_protocol_handler (u_char *handler_hook, t_server_protocol_handler handler)
void	cf_register_thread (t_thread *t)
void	cf_unregister_thread (t_thread *t)
int	cf_push_server (int sockfd, struct sockaddr *addr, int size, t_worker handler)
int	cf_push_client (int connfd, t_worker handler)
void	cf_log (int mode, const u_char *file, int line, const u_char *format,...)
int	cf_set_us_up_the_socket (struct sockaddr_un *addr)
void *	cf_worker (void *arg)
int	cf_tokenize (u_char *line, u_char ***tokens)
void	cf_handle_request (int sockfd)
int	cf_read_posting (t_posting *p, int sock, rline_t *tsd)
void	cf_send_posting (int sock, u_int64_t tid, u_int64_t mid, int invisible)
t_posting *	cf_get_posting (t_thread *t, u_int64_t mid)
t_thread *	cf_get_thread (u_int64_t tid)
int	cf_shmdt (void *ptr)
void *	cf_shmat (int shmid, void *addr, int shmflag)
void	cf_generate_shared_memory ()
void *	cf_generate_cache (void *arg)
void	cf_generate_list (t_string *str, int del)
void	cf_send_thread_list (int sockfd, int del)

---

Detailed Description

Server library functions and datatypes.

Author:

Christian Kruse, <cjk@wwwtech.de>

This file contains the functions used by the server program and the server plugins, so it contains the server library.

Definition in file serverlib.c.

---

Function Documentation

void* cf_generate_cache (  void *  arg  )

This function generates the cache for the thread list Parameters: arg  Dummy argument Returns: Returns always NULL Definition at line 1265 of file serverlib.c.

void cf_generate_list (  t_string *  str, int  del )

This function generates a stringified thread list for caching Parameters: str  A t_string reference. Destination for the stringified list del  If true, deleted threads will be inserted, too. If false, they won't. Definition at line 1312 of file serverlib.c.

void cf_generate_shared_memory (   )

This function generates the refreshed shared memory segment Definition at line 1085 of file serverlib.c.

t_posting* cf_get_posting (  t_thread *  t, u_int64_t  mid )

This function returns a posting from a thread Parameters: t  Thread structure mid  The message id Returns: The posting if it could be found, otherwise NULL Definition at line 1015 of file serverlib.c.

t_thread* cf_get_thread (  u_int64_t  tid  )

This function gets a thread from the thread list Parameters: tid  The thread list Returns: If the thread could be found, the thread, otherwise NULL. Definition at line 1036 of file serverlib.c.

void cf_handle_request (  int  sockfd  )

Handler function to handle client sockets. This function calls the specified worker function Parameters: sockfd  The socket file descriptor of the connection Definition at line 567 of file serverlib.c.

void cf_log (  int  mode, const u_char *  file, int  line, const u_char *  format, ...  )

This function makes a log entry into the log file Parameters: mode  The mode to log (LOG_ERR, LOG_DBG or LOG_STD) file  The file name (will be shortened to the last piece of the file name, e.g. /home/ck.c to ck.c) format  The format string line  The line number Definition at line 285 of file serverlib.c.

int cf_push_client (  int  connfd, t_worker  handler )

This function adds a client to the client queque. Parameters: connfd  The connection file descriptor handler  The handler function Returns: -1 on failure, 0 on success Definition at line 196 of file serverlib.c.

int cf_push_server (  int  sockfd, struct sockaddr *  addr, int  size, t_worker  handler )

This function adds a server socket to the server sockets array Parameters: sockfd  The socket file descriptor addr  The address structure size  The size of the structure handler  Pointer to the handler function Returns: Returns 0 on success, -1 on failure Definition at line 144 of file serverlib.c.

int cf_read_posting (  t_posting *  p, int  sock, rline_t *  tsd )

This function reads a posting in CFTP from the socket into the referenced posting structure. Parameters: p  The referenced posting structure sock  The client socket tsd  The caching structure Returns: 0 on success, -1 on failure Definition at line 816 of file serverlib.c.

int cf_register_protocol_handler (  u_char *  handler_hook, t_server_protocol_handler  handler )

This function registeres a CFTP handler Parameters: handler_hook  The token which identifies the handler handler  The handler function Returns: 0 on success, -1 on failure Definition at line 79 of file serverlib.c.

void cf_register_thread (  t_thread *  t  )

This function registeres a thread in the global threads hash Parameters: t  The thread structure Definition at line 101 of file serverlib.c.

void cf_send_posting (  int  sock, u_int64_t  tid, u_int64_t  mid, int  invisible )

This function sends a posting to the client Parameters: sock  The socket file descriptor tid  The thread id mid  The message id invisible  If true, invisible messages will be sent, to. If false, the won't. Definition at line 903 of file serverlib.c.

void cf_send_thread_list (  int  sockfd, int  del )

This function sends a "live" thread list Parameters: sockfd  The socket file descriptor del  True-false-switch. If false value, deleted threads are not submitted. If true value, deleted threads will be submitted Definition at line 1400 of file serverlib.c.

int cf_set_us_up_the_socket (  struct sockaddr_un *  addr  )

Function to create socket and bind it to the specified port Parameters: addr  A unix domain socket structure Returns: The socket on success or -1 on failure Definition at line 376 of file serverlib.c.

void* cf_shmat (  int  shmid, void *  addr, int  shmflag )

Wrapper function to the shmat() function. Used to log access to the shared memory segments Parameters: shmid  The shared memory id addr  The start address shmflag  Flags to the shmat() function Returns: NULL on failure, pointer on success Definition at line 1076 of file serverlib.c.

int cf_shmdt (  void *  ptr  )

Wrapper function of the shmdt function. Used to log access to the shared memory segments Parameters: ptr  The pointer to the shared memory segment Returns: Returns 0 or -1 Definition at line 1061 of file serverlib.c.

int cf_tokenize (  u_char *  line, u_char ***  tokens )

This function tokenizes a CFTP line Parameters: line  The line string tokens  A reference to a u_char ** pointer. Contains the array of tokens after function call Returns: Returns 0 on failure, number of tokens on success Definition at line 527 of file serverlib.c.

void cf_unregister_thread (  t_thread *  t  )

This function unregisteres a thread int he global threads hash Parameters: t  The thread structure Definition at line 118 of file serverlib.c.

void* cf_worker (  void *  arg  )

Worker function for the CFTP Parameters: arg  The socket as an integer variable castet to (void *) Returns: Returns NULL Definition at line 426 of file serverlib.c.

---