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/* File: NSL.h Contains: Interface to API for using the NSL Manager Version: Technology: Mac OS 8.5 Release: QuickTime 4.1 Copyright: (c) 1985-1999 by Apple Computer, Inc., all rights reserved Bugs?: For bug reports, consult the following page on the World Wide Web: http://developer.apple.com/bugreporter/ */ #ifndef __NSL__ #define __NSL__ #ifndef __CODEFRAGMENTS__ #include <CodeFragments.h> #endif #ifndef __EVENTS__ #include <Events.h> #endif #ifndef __THREADS__ #include <Threads.h> #endif #ifndef __MACERRORS__ #include <MacErrors.h> #endif #if PRAGMA_ONCE #pragma once #endif #ifdef __cplusplus extern "C" { #endif #if PRAGMA_IMPORT #pragma import on #endif #if PRAGMA_STRUCT_ALIGN #pragma options align=mac68k #elif PRAGMA_STRUCT_PACKPUSH #pragma pack(push, 2) #elif PRAGMA_STRUCT_PACK #pragma pack(2) #endif enum { kNSLMinSystemVersion = 0x0900, /* equivalent to 9.0*/ kNSLMinOTVersion = 0x0130 /* equivalent to 1.3*/ }; enum { kNSLDefaultListSize = 256 /* default list size for service and protocol lists*/ }; enum { kNSLURLDelimiter = ',' /* delimits URL's within memory buffers*/ }; #define kNSLErrorNoErr {noErr, kNSLNoContext} /* an initializer for the NSLError struct */ enum { kNSLNoContext = 0 /* the default context for NSLError structs*/ }; struct NSLError { OSStatus theErr; UInt32 theContext; }; typedef struct NSLError NSLError; typedef NSLError * NSLErrorPtr; enum { /* Constants to use with NSLPrepareRequest*/ /* kNSLDuplicateSearchInProgress is not strictly an error. The client is free to ignore*/ /* this result, and nothing bad will happen if it does. It is*/ /* informational only.*/ kNSLDuplicateSearchInProgress = 100, kNSLUserCanceled = userCanceledErr, /* User hit cancel from the NSLStandardGetURL dialog */ /* Invalid enumeratorRef */ kNSLInvalidEnumeratorRef = 0 /* this is not an error; it is the equiv to a NULL ptr*/ }; typedef UInt16 NSLSearchState; enum { /* State codes for notifiers.*/ kNSLSearchStateBufferFull = 1, kNSLSearchStateOnGoing = 2, kNSLSearchStateComplete = 3, kNSLSearchStateStalled = 4, kNSLWaitingForContinue = 5 }; typedef UInt32 NSLEventCode; enum { /* Event codes*/ kNSLServicesLookupDataEvent = 6, kNSLNeighborhoodLookupDataEvent = 7, kNSLNewDataEvent = 8, kNSLContinueLookupEvent = 9 }; typedef UInt32 NSLClientRef; typedef UInt32 NSLRequestRef; typedef UInt32 NSLOneBasedIndex; typedef char * NSLPath; typedef char * NSLServiceType; typedef Handle NSLServicesList; typedef unsigned char * NSLNeighborhood; /* cstring which is a comma delimited list of protocols which can be used to create a NSLProtocolList internally */ typedef UInt32 NSLDialogOptionFlags; enum { kNSLDefaultNSLDlogOptions = 0x00000000, /* use defaults for all the options */ kNSLNoURLTEField = 0x00000001 /* don't show url text field for manual entry */ }; struct NSLDialogOptions { UInt16 version; NSLDialogOptionFlags dialogOptionFlags; /* option flags for affecting the dialog's behavior */ Str255 windowTitle; Str255 actionButtonLabel; /* label of the default button (or null string for default) */ Str255 cancelButtonLabel; /* label of the cancel button (or null string for default) */ Str255 message; /* custom message prompt (or null string for default) */ }; typedef struct NSLDialogOptions NSLDialogOptions; /* the async information block for client<->manager interaction*/ struct NSLClientAsyncInfo { void * clientContextPtr; /* set by the client for its own use*/ void * mgrContextPtr; /* set by NSL mgr; ptr to request object ptr*/ char * resultBuffer; long bufferLen; long maxBufferSize; UInt32 startTime; /* when the search starts, to use with maxSearchTime to determine time-out condition*/ UInt32 intStartTime; /* used with alertInterval*/ UInt32 maxSearchTime; /* total time for search, in ticks (0 == no time limit)*/ UInt32 alertInterval; /* call client's notifier or return, every this many ticks ( 0 == don't use this param)*/ UInt32 totalItems; /* total number of tuples currently in buffer*/ UInt32 alertThreshold; /* call client's notifier or return, every this many items found ( 0 == don't use this param)*/ NSLSearchState searchState; NSLError searchResult; NSLEventCode searchDataType; /* this is a data type code which allows the client's asyncNotifier to properly*/ /* handle the data in resultBuffer.*/ }; typedef struct NSLClientAsyncInfo NSLClientAsyncInfo; typedef NSLClientAsyncInfo * NSLClientAsyncInfoPtr; /* the async information block plugin<->manager interaction*/ struct NSLPluginAsyncInfo { void * mgrContextPtr; /* set by NSL mgr; ptr to request object ptr*/ void * pluginContextPtr; /* set/used by individual plugins*/ void * pluginPtr; /* ptr to the plugin object waiting for continue lookup call*/ char * resultBuffer; /* set by plugin to point at data*/ long bufferLen; long maxBufferSize; UInt32 maxSearchTime; /* total time for search, in ticks (0 == no time limit)*/ UInt32 reserved1; UInt32 reserved2; UInt32 reserved3; NSLClientRef clientRef; NSLRequestRef requestRef; NSLSearchState searchState; OSStatus searchResult; }; typedef struct NSLPluginAsyncInfo NSLPluginAsyncInfo; typedef NSLPluginAsyncInfo * NSLPluginAsyncInfoPtr; /* the mgr asynchronous notifier routine.*/ typedef CALLBACK_API( void , NSLMgrNotifyProcPtr )(NSLPluginAsyncInfo *thePluginAsyncInfo); /* the client asynchronous notifier routine.*/ typedef CALLBACK_API( void , NSLClientNotifyProcPtr )(NSLClientAsyncInfo *theClientAsyncInfo); typedef STACK_UPP_TYPE(NSLMgrNotifyProcPtr) NSLMgrNotifyUPP; typedef STACK_UPP_TYPE(NSLClientNotifyProcPtr) NSLClientNotifyUPP; #if OPAQUE_UPP_TYPES EXTERN_API(NSLMgrNotifyUPP) NewNSLMgrNotifyUPP (NSLMgrNotifyProcPtr userRoutine); EXTERN_API(NSLClientNotifyUPP) NewNSLClientNotifyUPP (NSLClientNotifyProcPtr userRoutine); EXTERN_API(void) DisposeNSLMgrNotifyUPP (NSLMgrNotifyUPP userUPP); EXTERN_API(void) DisposeNSLClientNotifyUPP (NSLClientNotifyUPP userUPP); EXTERN_API(void) InvokeNSLMgrNotifyUPP (NSLPluginAsyncInfo * thePluginAsyncInfo, NSLMgrNotifyUPP userUPP); EXTERN_API(void) InvokeNSLClientNotifyUPP (NSLClientAsyncInfo * theClientAsyncInfo, NSLClientNotifyUPP userUPP); #else enum { uppNSLMgrNotifyProcInfo = 0x000000C0 }; /* pascal no_return_value Func(4_bytes) */ enum { uppNSLClientNotifyProcInfo = 0x000000C0 }; /* pascal no_return_value Func(4_bytes) */ #define NewNSLMgrNotifyUPP(userRoutine) (NSLMgrNotifyUPP)NewRoutineDescriptor((ProcPtr)(userRoutine), uppNSLMgrNotifyProcInfo, GetCurrentArchitecture()) #define NewNSLClientNotifyUPP(userRoutine) (NSLClientNotifyUPP)NewRoutineDescriptor((ProcPtr)(userRoutine), uppNSLClientNotifyProcInfo, GetCurrentArchitecture()) #define DisposeNSLMgrNotifyUPP(userUPP) DisposeRoutineDescriptor(userUPP) #define DisposeNSLClientNotifyUPP(userUPP) DisposeRoutineDescriptor(userUPP) #define InvokeNSLMgrNotifyUPP(thePluginAsyncInfo, userUPP) CALL_ONE_PARAMETER_UPP((userUPP), uppNSLMgrNotifyProcInfo, (thePluginAsyncInfo)) #define InvokeNSLClientNotifyUPP(theClientAsyncInfo, userUPP) CALL_ONE_PARAMETER_UPP((userUPP), uppNSLClientNotifyProcInfo, (theClientAsyncInfo)) #endif /* support for pre-Carbon UPP routines: NewXXXProc and CallXXXProc */ #define NewNSLMgrNotifyProc(userRoutine) NewNSLMgrNotifyUPP(userRoutine) #define NewNSLClientNotifyProc(userRoutine) NewNSLClientNotifyUPP(userRoutine) #define CallNSLMgrNotifyProc(userRoutine, thePluginAsyncInfo) InvokeNSLMgrNotifyUPP(thePluginAsyncInfo, userRoutine) #define CallNSLClientNotifyProc(userRoutine, theClientAsyncInfo) InvokeNSLClientNotifyUPP(theClientAsyncInfo, userRoutine) /* this struct is a format for dealing with our internal data representation. Typed data will be contiguous chunk of memory, with the first 4 bytes being a data "descriptor". */ struct NSLTypedData { unsigned long dataType; unsigned long lengthOfData; /* void* theData; */ }; typedef struct NSLTypedData NSLTypedData; typedef NSLTypedData * NSLTypedDataPtr; #define kNSLDataType 'NSL_' /* This is just a header at the beginning of a handle that stores our list of service types. Each service type is a pascal string, so each service type starts after the end of the previous one. */ struct NSLServicesListHeader { unsigned long numServices; unsigned long logicalLen; /* length of all usable data in handle*/ /* Ptr firstService; */ }; typedef struct NSLServicesListHeader NSLServicesListHeader; typedef NSLServicesListHeader * NSLServicesListHeaderPtr; /* some defs for common protocols*/ #define kSLPProtocolType "SLP" #define kDNSProtocolType "DNS" #define kLDAPProtocolType "LDAP" #define kNBPProtocolType "NBP" /* general information from a plug-in. Includes supported protocols, data types and services, as well as an info/comment string describing the function of the plug-in in human-readable form. The offsets point to the beginning of each list of data returned, and the protocol data offset is the startOfData member of the struct */ struct NSLPluginData { long reserved1; long reserved2; long reserved3; Boolean supportsRegistration; Boolean isPurgeable; UInt16 totalLen; /* length of everything, including header*/ UInt16 dataTypeOffset; UInt16 serviceListOffset; UInt16 protocolListOffset; UInt16 commentStringOffset; /* char* startOfData; */ /* protocol data is first on the list*/ }; typedef struct NSLPluginData NSLPluginData; typedef NSLPluginData * NSLPluginDataPtr; /* ----------------------------------------------------------------------------- Finding out if the library is present and getting its version ----------------------------------------------------------------------------- */ EXTERN_API( UInt32 ) NSLLibraryVersion (void); #ifdef __cplusplus inline pascal Boolean NSLLibraryPresent() { return NSLLibraryVersion != (void*)kUnresolvedCFragSymbolAddress; } #else #define NSLLibraryPresent() ((NSLLibraryVersion != (void*)kUnresolvedCFragSymbolAddress)) #endif typedef CALLBACK_API( Boolean , NSLURLFilterProcPtr )(char *url, Str255 displayString)/* optional filter function */; /* you can provide for calls to NSLStandardGetURL*/ typedef CALLBACK_API( void , NSLEventProcPtr )(EventRecord *newEvent, void *userContext)/* optional callback routine for getting Events while the dialog is up */; typedef STACK_UPP_TYPE(NSLURLFilterProcPtr) NSLURLFilterUPP; typedef STACK_UPP_TYPE(NSLEventProcPtr) NSLEventUPP; #if OPAQUE_UPP_TYPES EXTERN_API(NSLURLFilterUPP) NewNSLURLFilterUPP (NSLURLFilterProcPtr userRoutine); EXTERN_API(NSLEventUPP) NewNSLEventUPP (NSLEventProcPtr userRoutine); EXTERN_API(void) DisposeNSLURLFilterUPP (NSLURLFilterUPP userUPP); EXTERN_API(void) DisposeNSLEventUPP (NSLEventUPP userUPP); EXTERN_API(Boolean) InvokeNSLURLFilterUPP (char * url, Str255 displayString, NSLURLFilterUPP userUPP); EXTERN_API(void) InvokeNSLEventUPP (EventRecord * newEvent, void * userContext, NSLEventUPP userUPP); #else enum { uppNSLURLFilterProcInfo = 0x000003D0 }; /* pascal 1_byte Func(4_bytes, 4_bytes) */ enum { uppNSLEventProcInfo = 0x000003C0 }; /* pascal no_return_value Func(4_bytes, 4_bytes) */ #define NewNSLURLFilterUPP(userRoutine) (NSLURLFilterUPP)NewRoutineDescriptor((ProcPtr)(userRoutine), uppNSLURLFilterProcInfo, GetCurrentArchitecture()) #define NewNSLEventUPP(userRoutine) (NSLEventUPP)NewRoutineDescriptor((ProcPtr)(userRoutine), uppNSLEventProcInfo, GetCurrentArchitecture()) #define DisposeNSLURLFilterUPP(userUPP) DisposeRoutineDescriptor(userUPP) #define DisposeNSLEventUPP(userUPP) DisposeRoutineDescriptor(userUPP) #define InvokeNSLURLFilterUPP(url, displayString, userUPP) (Boolean)CALL_TWO_PARAMETER_UPP((userUPP), uppNSLURLFilterProcInfo, (url), (displayString)) #define InvokeNSLEventUPP(newEvent, userContext, userUPP) CALL_TWO_PARAMETER_UPP((userUPP), uppNSLEventProcInfo, (newEvent), (userContext)) #endif /* support for pre-Carbon UPP routines: NewXXXProc and CallXXXProc */ #define NewNSLURLFilterProc(userRoutine) NewNSLURLFilterUPP(userRoutine) #define NewNSLEventProc(userRoutine) NewNSLEventUPP(userRoutine) #define CallNSLURLFilterProc(userRoutine, url, displayString) InvokeNSLURLFilterUPP(url, displayString, userRoutine) #define CallNSLEventProc(userRoutine, newEvent, userContext) InvokeNSLEventUPP(newEvent, userContext, userRoutine) /* ----------------------------------------------------------------------------- High level API calls: the following two calls are ALL an application needs to register/deregister its service. If you use these, you don't need to make any of the other calls to NSLAPI (including NSLOpenNavigationAPI) ----------------------------------------------------------------------------- */ /* <--- error code from registration */ /* ---> urlToRegister is a null terminated url that has only legal characters defined for URLs. Use HexEncodeText to encode*/ /* portions of the url that have illegal characters */ /* ---> neighborhoodToRegisterIn is an optional parameter for explicitly defining a neighborhood to register in. If parameter is NULL, then the plugins will determine where to register the service */ EXTERN_API( NSLError ) NSLStandardRegisterURL (NSLPath urlToRegister, NSLNeighborhood neighborhoodToRegisterIn) /* can be NULL */; /* <--- error code from registration */ /* ---> urlToRegister is a null terminated url that has only legal characters defined for URLs. Use HexEncodeText to encode*/ /* portions of the url that have illegal characters */ /* ---> neighborhoodToDeregisterIn is an optional parameter for explicitly defining a neighborhood to register in. If parameter is NULL, then the plugins will determine where to register the service */ EXTERN_API( NSLError ) NSLStandardDeregisterURL (NSLPath urlToDeregister, NSLNeighborhood neighborhoodToDeregisterIn) /* can be NULL */; /* <--- function returns OSStatus of the operation. noErr will be returned if valid, kNSLUserCanceled will be returned if the user cancels */ /* ---> dialogOptions */ /* ---> eventProc */ /* ---> eventProcContextPtr */ /* ---> filterProc */ /* ---> serviceTypeList */ /* <--- userSelectedURL */ /* NSLDialogOptions* dialogOptions */ /* dialogOptions is a user defined structure defining the look, feel and operation of NSLStandardGetURL dialog default behavior can be achieved by passing in a pointer to a structure that has been filled out by a previous call to NSLGetDefaultDialogOptions or by passing in NULL. */ /* NSLEventUPP eventProc */ /* the eventProc is a callback NSLURLFilterUPP that will get called with Events that the dialog doesn't handle. If you pass in nil, you won't get update events while the NSLStandardGetURL dialog is open. */ /* void* eventProcContextPtr */ /* you can provide a pointer to some contextual data that you want to have sent to your eventProc filter*/ /* NSLURLFilterProcPtr filterProc */ /* the filter param is a callback NSLURLFilterUPP that will get called (if not nil) for each url that is going to be displayed in the dialog's result list. A result of false will not include the url for the user to select from. You also have the option of handling the way the url looks in the dialog listing by copying the preferred name into the displayString parameter. (If left alone, NSLStandardGetURL dialog will strip the service type portion off the url). */ /* char* serviceTypeList */ /* the serviceTypeList parameter is a null terminated string that will directly affect the contents of the services popup in the dialog. The structure of this string is a set of tuples as follows: Name of ServiceType as to be represented in the popup followed by a comma delimted list of service descriptors (ie http,https) that will used in the search of that type. Each comma delimited tuple is delimited by semi-colons. */ /* For example: If you want to search for services of type http (web), https (secure web), and ftp, you could pass in the string "Web Servers,http,https;FTP Servers,ftp". This would result in a popup list with two items ("Web Servers" and "FTP Servers") and searches performed on them will provide results of type http and https for the first, and ftp for the second. */ /* Results list Icons: NSLStandardGetURL provides icons in its listings for the following types: "http", "https", "ftp", "afp", "lpr", "LaserWriter", "AFPServer" any other types will get a generic icon. However, you can provide icons if you wish by including an '#ics8' resource id at the end of your comma delimited list. The dialog will then use that icon if found in its results list. This icon will be used for all types in a tuple. For example: The param "Web Servers,http,https;Telnet Servers,telnet;NFS Servers,nfs,129" would result in lists of http and https services to be shown with their default icons, telnet servers would be shown with the default misc. icon and nfs servers would be shown with your icon at resource id 129. */ /* char** url */ /* pass in the address of a char* and it will point to the resulting url. If the user cancels (the function returns false), the pointer will be set to nil. If the function returns true (user selected a url), then you must call NSLFreeURL on the pointer when you are done with it. */ /* Call this to have the user select a url based service from a dialog. Function takes on input an optional filter proc, a serviceTypeList, and an address to a Ptr. Function sets the value of the Ptr to a newly created c-style null terminated string containing the user's choice of URL. */ EXTERN_API( OSStatus ) NSLStandardGetURL (NSLDialogOptions * dialogOptions, /* can be NULL */ NSLEventUPP eventProc, /* can be NULL */ void * eventProcContextPtr, /* can be NULL */ NSLURLFilterUPP filterProc, /* can be NULL */ char * serviceTypeList, char ** userSelectedURL); /*-----------------------------------------------------------------------------*/ EXTERN_API( OSStatus ) NSLHexEncodeText (const char * rawText, UInt16 rawTextLen, char * newTextBuffer, UInt16 * newTextBufferLen, Boolean * textChanged); EXTERN_API( OSStatus ) NSLHexDecodeText (const char * encodedText, UInt16 encodedTextLen, char * decodedTextBuffer, UInt16 * decodedTextBufferLen, Boolean * textChanged); EXTERN_API( OSStatus ) NSLGetDefaultDialogOptions (NSLDialogOptions * dialogOptions); /* <--- function returns null (useful for setting variable at same time as freeing it */ /* ---> url is memory created by a call to NSLStandardGetURL */ EXTERN_API( char *) NSLFreeURL (char * url); /* ----------------------------------------------------------------------------- Basic API Utility calls: sufficient to create, and parse data structures ----------------------------------------------------------------------------- */ EXTERN_API( NSLServicesList ) NSLMakeNewServicesList (const char * initialServiceList); EXTERN_API( NSLError ) NSLAddServiceToServicesList (NSLServicesList serviceList, NSLServiceType serviceType); EXTERN_API( void ) NSLDisposeServicesList (NSLServicesList theList); /* The name reflects the name of the Neighborhood, i.e. "apple.com." or "AppleTalk Zone One". The protocolList is a comma delimited list of protocols that the Neighborhood might exist in. If the user passes in NULL, then all protocols will be queried. The result must be disposed of by the user by calling NSLFreeNeighborhood. */ EXTERN_API( NSLNeighborhood ) NSLMakeNewNeighborhood (const char * name, const char * protocolList) /* can be NULL */; /* creates an exact copy of an existing neighborhood */ EXTERN_API( NSLNeighborhood ) NSLCopyNeighborhood (NSLNeighborhood neighborhood); EXTERN_API( NSLNeighborhood ) NSLFreeNeighborhood (NSLNeighborhood neighborhood); EXTERN_API( void ) NSLGetNameFromNeighborhood (NSLNeighborhood neighborhood, char ** name, long * length); /* create a block of formatted data, pointed to by newDataPtr. This will be used in calls (typically request-related calls) for plug-ins that handle the NSL data type. */ EXTERN_API( OSStatus ) NSLMakeServicesRequestPB (NSLServicesList serviceList, NSLTypedDataPtr * newDataPtr); /* releases any storage created with MakeXXXPB calls, associated with TypedData.*/ EXTERN_API( NSLTypedDataPtr ) NSLFreeTypedDataPtr (NSLTypedDataPtr nslTypeData); /* utility function that returns whether a url was found, a pointer to the beginning of the url, and the length of the URL. */ EXTERN_API( Boolean ) NSLGetNextUrl (NSLClientAsyncInfoPtr infoPtr, char ** urlPtr, long * urlLength); /* utility function that returns whether a Neighborhood was found, a pointer to the beginning of the Neighborhood, and the length of the Neighborhood. */ EXTERN_API( Boolean ) NSLGetNextNeighborhood (NSLClientAsyncInfoPtr infoPtr, NSLNeighborhood * neighborhood, long * neighborhoodLength); /* NSLErrorToString: convert a numeric error code to its string equivalent. Caller must have allocated sufficient space to store both strings. (Max 255 chars each) The errorString parameter will return a textual explanation of what is wrong, while the solutionString returns a possible solution to get around the problem */ EXTERN_API( OSStatus ) NSLErrorToString (NSLError theErr, char * errorString, char * solutionString); /* ----------------------------------------------------------------------------- Basic API calls: sufficient to create simple requests, and receive answers ----------------------------------------------------------------------------- */ EXTERN_API( OSStatus ) NSLOpenNavigationAPI (NSLClientRef * newRef); EXTERN_API( void ) NSLCloseNavigationAPI (NSLClientRef theClient); /* NSLPrepareRequest: creates an NSLRequestRef, sets up some internal data notifier is an NSLClientNotifyUPP that will be called when data is available, when the lookup has completed, or if an error occurs. When the notifier is called, the cookie will be the NSLRequestRef. If notifier is NULL, then the NSLManager will assume that the request is made synchronously. This should only be used while in a separate thread, so that the client app can still process events, etc. contextPtr is a void* which is passed as the contextPtr argument when the notifier is called. upon exit: 1) ref will contain a pointer to a NSLRequestRef which must be passed to all other functions which require a NSLRequestRef. 2) infoPtr will point to a newly created ClientAsycnInfoPtr which will be disposed by the manager when the search is completed NOTE: Only one search can be running at a time per clientRef. */ EXTERN_API( NSLError ) NSLPrepareRequest (NSLClientNotifyUPP notifier, void * contextPtr, NSLClientRef theClient, NSLRequestRef * ref, char * bufPtr, unsigned long bufLen, NSLClientAsyncInfoPtr * infoPtr); /* NSLStartNeighborhoodLookup: looking for neighborhoods associated with or neighboring a particular neighborhood Passing in NULL for neighborhood will generate a list of a default neighborhood(s) */ EXTERN_API( NSLError ) NSLStartNeighborhoodLookup (NSLRequestRef ref, NSLNeighborhood neighborhood, NSLClientAsyncInfo * asyncInfo); /* NSLStartServicesLookup: starts looking for entities if the specified type in the specified neighborhood */ EXTERN_API( NSLError ) NSLStartServicesLookup (NSLRequestRef ref, NSLNeighborhood neighborhood, NSLTypedDataPtr requestData, NSLClientAsyncInfo * asyncInfo); /* NSLContinueLookup: continues a paused/outstanding lookup*/ EXTERN_API( NSLError ) NSLContinueLookup (NSLClientAsyncInfo * asyncInfo); /* NSLCancelRequest: cancels an ongoing search*/ EXTERN_API( NSLError ) NSLCancelRequest (NSLRequestRef ref); /* NSLDeleteRequest: deletes info associated with this ref. The ClientAsyncInfoPtr will no longer be valid This must be called when the client is no longer using this requestRef. */ EXTERN_API( NSLError ) NSLDeleteRequest (NSLRequestRef ref); /* ----------------------------------------------------------------------------- Utility API calls: use these accessors to manipulate NSL's typed data ----------------------------------------------------------------------------- */ /* NSLParseServicesRequestPB provides the inverse of NSLMakeRequestPB, filling out the offsets found within newDataPtr*/ /* <--- returns an OSStatus if any errors occur parsing the data */ /* <--- newDataPtr is the construct passed to the plugin */ /* ---> serviceListPtr is the address of a pointer which will be set to point at the portion of the newDataPtr that holds the serviceList to be searched */ /* ---> serviceListLen is the length of the serviceListPtr data pointed to by serviceListPtr */ EXTERN_API( OSStatus ) NSLParseServicesRequestPB (NSLTypedDataPtr newDataPtr, char ** serviceListPtr, UInt16 * serviceListLen); /* NSLParseServiceRegistrationPB provides for breaking apart a registration request from a client to a plugin*/ /* <--- returns an OSStatus if any errors occur parsing the data */ /* <--- newDataPtr is the construct passed to the plugin */ /* ---> neighborhoodPtr gets set to point at the portion of the newDataPtr that contains the neighborhood */ /* ---> neighborhoodLen is the length of the neighborhood pointed to by neighborhoodPtr */ /* ---> urlPtr is the address of a pointer which will be set to point at the portion of the newDataPtr that holds the url to be registered */ /* ---> urlLen is the length of the url data pointed to by urlPtr */ EXTERN_API( OSStatus ) NSLParseServiceRegistrationPB (NSLTypedDataPtr newDataPtr, NSLNeighborhood * neighborhoodPtr, UInt16 * neighborhoodLen, char ** urlPtr, UInt16 * urlLen); /* NSLGetErrorStringsFromResource makes a basic assumption! errorString and solutionString both point to valid memory of at least 256 bytes! */ /* <--- returns an OSStatus if any errors occur */ /* ---> theErr is an OSStatus to be matched against a resource list of errors */ /* ---> fileSpecPtr is a FSSpecPtr to the resource containing the list of errors */ /* ---> errorResID is the resourceID of the NSLI resource of the list of errors */ /* <--> errorString is a pointer to valid memory of at least 256 bytes which will be filled out by the error portion of the error string */ /* <--> solutionString is a pointer to valid memory of at least 256 bytes which will be filled out by the solution portion of the error string */ EXTERN_API( OSStatus ) NSLGetErrorStringsFromResource (OSStatus theErr, const FSSpec * fileSpecPtr, SInt16 errorResID, char * errorString, char * solutionString); /* <--- Returns true if given service is in the given service list */ /* ---> serviceList is a valid NSLServicesList containing information about services to be searched */ /* ---> svcToFind is an NSLServiceType of a particular service to check if it is in the serviceList */ EXTERN_API( Boolean ) NSLServiceIsInServiceList (NSLServicesList serviceList, NSLServiceType svcToFind); /* <--- returns an OSStatus if any errors occur parsing the data */ /* ---> svcString is the address of a pointer which will be set to point at the portion of theURL that holds the serviceType of theURL */ /* ---> svcLen is the length of the serviceType pointed to by svcString */ EXTERN_API( OSStatus ) NSLGetServiceFromURL (char * theURL, char ** svcString, UInt16 * svcLen); /* <--- returns the length of a Neighborhood data structure */ /* ---> neighborhood is a valid NSLNeighborhood */ EXTERN_API( long ) NSLGetNeighborhoodLength (NSLNeighborhood neighborhood); /* ------------------------------------------------------------------------------------- Utility API calls: use these routines to separate plugin threads from client threads ------------------------------------------------------------------------------------- */ /* this routine works the same as the Thread manager's routine NewThread, except */ /* that the thread is added to the NSL manager's thread list. */ EXTERN_API( OSErr ) NSLNewThread (ThreadStyle threadStyle, ThreadEntryProcPtr threadEntry, void * threadParam, Size stackSize, ThreadOptions options, void ** threadResult, ThreadID * threadMade); /* this routine works the same as the Thread manager's routine DisposeThread, except */ /* that the thread is removed from the NSL manager's thread list. */ EXTERN_API( OSErr ) NSLDisposeThread (ThreadID threadToDump, void * threadResult, Boolean recycleThread); #if OLDROUTINENAMES typedef NSLClientAsyncInfo ClientAsyncInfo; typedef NSLPluginAsyncInfo PluginAsyncInfo; typedef NSLTypedData TypedData; typedef NSLPluginData PluginData; typedef NSLClientAsyncInfoPtr ClientAsyncInfoPtr; typedef NSLPluginAsyncInfoPtr PluginAsyncInfoPtr; typedef NSLTypedDataPtr TypedDataPtr; typedef NSLPluginDataPtr PluginDataPtr; #endif /* OLDROUTINENAMES */ #if PRAGMA_STRUCT_ALIGN #pragma options align=reset #elif PRAGMA_STRUCT_PACKPUSH #pragma pack(pop) #elif PRAGMA_STRUCT_PACK #pragma pack() #endif #ifdef PRAGMA_IMPORT_OFF #pragma import off #elif PRAGMA_IMPORT #pragma import reset #endif #ifdef __cplusplus } #endif #endif /* __NSL__ */ 
