citadel/include/ctdl_module.h

   1 /* $Id$ */
   2
   3 #ifndef CTDL_MODULE_H
   4 #define CTDL_MODULE_H
   5
   6 #include <libcitadel.h>
   7 #include "server.h"
   8 #include "sysdep_decls.h"
   9 #include "msgbase.h"
  10 #include "threads.h"
  11 /*
  12  * define macros for module init stuff
  13  */
  14
  15 #define CTDL_MODULE_INIT(module_name) char *ctdl_module_##module_name##_init (int threading)
  16
  17 #define CTDL_INIT_CALL(module_name) ctdl_module_##module_name##_init (threading)
  18
  19 #define CTDL_MODULE_UPGRADE(module_name) char *ctdl_module_##module_name##_upgrade (void)
  20
  21 #define CTDL_UPGRADE_CALL(module_name) ctdl_module_##module_name##_upgrade ()
  22
  23
  24 /*
  25  * Prototype for making log entries in Citadel.
  26  */
  27
  28 void CtdlLogPrintf(enum LogLevel loglevel, const char *format, ...);
  29
  30 /*
  31  * Fix the interface to aide_message so that it complies with the Coding style
  32  */
  33
  34 #define CtdlAideMessage(TEXT, SUBJECT) aide_message(TEXT, SUBJECT)
  35
  36 /*
  37  * Hook functions available to modules.
  38  */
  39
  40 void CtdlRegisterSessionHook(void (*fcn_ptr)(void), int EventType);
  41 void CtdlUnregisterSessionHook(void (*fcn_ptr)(void), int EventType);
  42
  43 void CtdlRegisterUserHook(void (*fcn_ptr)(struct ctdluser *), int EventType);
  44 void CtdlUnregisterUserHook(void (*fcn_ptr)(struct ctdluser *), int EventType);
  45
  46 void CtdlRegisterXmsgHook(int (*fcn_ptr)(char *, char *, char *, char *), int order);
  47 void CtdlUnregisterXmsgHook(int (*fcn_ptr)(char *, char *, char *, char *), int order);
  48
  49 void CtdlRegisterMessageHook(int (*handler)(struct CtdlMessage *),
  50                                                         int EventType);
  51 void CtdlUnregisterMessageHook(int (*handler)(struct CtdlMessage *),
  52                                                         int EventType);
  53
  54 void CtdlRegisterNetprocHook(int (*handler)(struct CtdlMessage *, char *) );
  55 void CtdlUnregisterNetprocHook(int (*handler)(struct CtdlMessage *, char *) );
  56
  57 void CtdlRegisterRoomHook(int (*fcn_ptr)(struct ctdlroom *) );
  58 void CtdlUnregisterRoomHook(int (*fnc_ptr)(struct ctdlroom *) );
  59
  60 void CtdlRegisterDeleteHook(void (*handler)(char *, long) );
  61 void CtdlUnregisterDeleteHook(void (*handler)(char *, long) );
  62
  63 void CtdlRegisterCleanupHook(void (*fcn_ptr)(void));
  64 void CtdlUnregisterCleanupHook(void (*fcn_ptr)(void));
  65
  66 void CtdlRegisterProtoHook(void (*handler)(char *), char *cmd, char *desc);
  67 void CtdlUnregisterProtoHook(void (*handler)(char *), char *cmd);
  68
  69 void CtdlRegisterServiceHook(int tcp_port,
  70                              char *sockpath,
  71                              void (*h_greeting_function) (void),
  72                              void (*h_command_function) (void),
  73                              void (*h_async_function) (void),
  74                              const char *ServiceName
  75 );
  76 void CtdlUnregisterServiceHook(int tcp_port,
  77                         char *sockpath,
  78                         void (*h_greeting_function) (void),
  79                         void (*h_command_function) (void),
  80                         void (*h_async_function) (void)
  81 );
  82
  83 void CtdlRegisterFixedOutputHook(char *content_type,
  84                         void (*output_function) (char *supplied_data, int len)
  85 );
  86 void CtdlUnRegisterFixedOutputHook(char *content_type);
  87
  88 void CtdlRegisterMaintenanceThread(char *name, void *(*thread_proc) (void *arg));
  89
  90 void CtdlRegisterSearchFuncHook(void (*fcn_ptr)(int *, long **, char *), char *name);
  91
  92
  93 /*
  94  * Directory services hooks for LDAP etc
  95  */
  96
  97 #define DIRECTORY_USER_DEL 1    // Delete a user entry
  98 #define DIRECTORY_CREATE_HOST 2 // Create a host entry if not already there.
  99 #define DIRECTORY_CREATE_OBJECT 3       // Create a new object for directory entry
 100 #define DIRECTORY_ATTRIB_ADD 4  // Add an attribute to the directory entry object
 101 #define DIRECTORY_SAVE_OBJECT 5 // Save the object to the directory service
 102 #define DIRECTORY_FREE_OBJECT 6 // Free the object and its attributes
 103
 104 int CtdlRegisterDirectoryServiceFunc(int (*func)(char *cn, char *ou, void **object), int cmd, char *module);
 105 int CtdlDoDirectoryServiceFunc(char *cn, char *ou, void **object, char *module, int cmd);
 106
 107 /* TODODRW: This needs to be changed into a hook type interface
 108  * for now we have this horrible hack
 109  */
 110 void CtdlModuleStartCryptoMsgs(char *ok_response, char *nosup_response, char *error_response);
 111
 112
 113 /*
 114  * Citadel Threads API
 115  */
 116 struct CtdlThreadNode *CtdlThreadCreate(char *name, long flags, void *(*thread_func) (void *arg), void *args);
 117 struct CtdlThreadNode *CtdlThreadSchedule(char *name, long flags, void *(*thread_func) (void *arg), void *args, time_t when);
 118 void CtdlThreadSleep(int secs);
 119 void CtdlThreadStop(struct CtdlThreadNode *thread);
 120 int CtdlThreadCheckStop(void);
 121 /* void CtdlThreadCancel2(struct CtdlThreadNode *thread); Leave this out, it should never be needed */
 122 const char *CtdlThreadName(const char *name);
 123 struct CtdlThreadNode *CtdlThreadSelf(void);
 124 int CtdlThreadGetCount(void);
 125 int CtdlThreadGetWorkers(void);
 126 double CtdlThreadGetWorkerAvg(void);
 127 double CtdlThreadGetLoadAvg(void);
 128 void CtdlThreadGC(void);
 129 void CtdlThreadStopAll(void);
 130 int CtdlThreadSelect(int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout);
 131 void CtdlThreadAllocTSD(void);
 132
 133 #define CTDLTHREAD_BIGSTACK     0x0001
 134 #define CTDLTHREAD_WORKER       0x0002
 135
 136 /* Macros to speed up getting outr thread */
 137
 138 #define MYCURSORS       (((ThreadTSD*)pthread_getspecific(ThreadKey))->cursors)
 139 #define MYTID           (((ThreadTSD*)pthread_getspecific(ThreadKey))->tid)
 140 #define CT              (((ThreadTSD*)pthread_getspecific(ThreadKey))->self)
 141
 142 /** return the current context list as an array and do it in a safe manner
 143  * The returned data is a copy so only reading is useful
 144  * The number of contexts is returned in count.
 145  * Beware, this does not copy any of the data pointed to by the context.
 146  * This means that you can not rely on things like the redirect buffer being valid.
 147  * You must free the returned pointer when done.
 148  */
 149 struct CitContext *CtdlGetContextArray (int *count);
 150 void CtdlFillSystemContext(struct CitContext *context, char *name);
 151
 152 int CtdlTrySingleUser(void);
 153 void CtdlEndSingleUser(void);
 154 int CtdlWantSingleUser(void);
 155 int CtdlIsSingleUser(void);
 156
 157
 158 /*
 159  * CtdlGetCurrentMessageNumber()  -  Obtain the current highest message number in the system
 160  * This provides a quick way to initialise a variable that might be used to indicate
 161  * messages that should not be processed. EG. a new Sieve script will use this
 162  * to record determine that messages older than this should not be processed.
 163  * This function is defined in control.c
 164  */
 165 long CtdlGetCurrentMessageNumber(void);
 166
 167 #endif /* CTDL_MODULE_H */