Received: from engmail2sun.Eng.Sun.COM (engmail2sun.Eng.Sun.COM [129.144.134.19]) by printing.eng.sun.com (8.12.5+Sun/8.12.5) with ESMTP id gB50WvMK017270 for ; Wed, 4 Dec 2002 16:32:57 -0800 (PST) Received: from sunmail3.sfbay.sun.com (sunmail3.SFBay.Sun.COM [129.149.247.180]) by engmail2sun.Eng.Sun.COM (8.12.2+Sun/8.12.2/ENSMAIL,v2.2) with ESMTP id gB50X7bB025526 for ; Wed, 4 Dec 2002 16:33:07 -0800 (PST) Received: from nwkea-mail-2.sun.com ([192.18.42.14]) by sunmail3.sfbay.sun.com (8.11.6+Sun/8.11.6/ENSMAIL,v2.2) with ESMTP id gB50X6B18529 for ; Wed, 4 Dec 2002 16:33:06 -0800 (PST) Received: from ariel.eastgw.xerox.com (ariel.xerox.com [208.140.33.25]) by nwkea-mail-2.sun.com (8.9.3+Sun/8.9.3) with ESMTP id QAA24589 for ; Wed, 4 Dec 2002 16:33:02 -0800 (PST) Received: from norman.cp10.es.xerox.com (norman.cp10.es.xerox.com [13.240.124.12]) by ariel.eastgw.xerox.com (8.9.3/8.9.3) with ESMTP id TAA10930; Wed, 4 Dec 2002 19:32:38 -0500 (EST) Received: from x-crt-es-ms1.cp10.es.xerox.com (x-crt-es-ms1 [13.240.124.41]) by norman.cp10.es.xerox.com (8.11.6+Sun/8.9.3) with ESMTP id gB50Xea19632; Wed, 4 Dec 2002 16:33:40 -0800 (PST) Received: by x-crt-es-ms1.cp10.es.xerox.com with Internet Mail Service (5.5.2653.19) id ; Wed, 4 Dec 2002 16:32:58 -0800 Message-ID: From: "Hastings, Tom N" To: Norm Jacobs Cc: printing-spool@freestandards.org Subject: RE: PAPI "supported" functions Date: Wed, 4 Dec 2002 16:32:55 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Norm, This thread has been moved to [printing-spool] where it should be. 1. We liked your two functions for the Miscellaneous section. 2. Ira and I found a function in your list that isn't in the PAPI v0.9 spec: papiServiceSetServiceName Optional API Support 3. We suggest that the papi.h file be included in the same directory as the spec and the IPP-Object-Attributes.pdf file that is referenced from Section 9. 4. The header file should be referenced from the spec, just like the IPP-Object-Attributes.pdf file. 5. Having the header file would also make it clear what some of the type definitions are as well that aren't explained or defined in the spec. 6. Ira and I agree with your optional attributes, even papiJobValidate (even though it is required in IPP). I'll update our two profiles accordingly. 7. However, in doing the review, we realized that there are a bunch of functions in the Services section that are a mistake and should be removed. They are the Set and Get of the individual fields of the Service object: UserName, Password, Encryption, AuthCB, AppData, and ServiceName. Since all of them (except AppData) are passed in the constructor, why not delete all of the Set functions? Then provide a single Get (or Query?) function which returns all 6 of the fields of the Service object as a structure? We think that being able to change such fundamental things in the Service object instance, such as UserName, Password, Authentication, is not sound. Also having a lot of optional functions is not very useful. Application writers won't use them, if they are optional, since they won't always be present. 8. What did you mean by the notation "Printer Support": papiPrinterListJobs Core Printer Support Its the only attribute listed with "Printer Support". Thanks, Tom -----Original Message----- From: Norm Jacobs [mailto:Norm.Jacobs@sun.com] Sent: Tuesday, December 03, 2002 15:42 To: printing-discuss@freestandards.org Subject: [printing-meetingnotes] PAPI "supported" functions In our last conference call, we discussed a desire to be able to enumerate support for the various PAPI functions from a particular PAPI implementation. Since we are not breaking down the PAPI further into constituent components and we are requiring unsupported functions to return PAPI_OPERATION_NOT_SUPPORTED, It's not sufficient to simply be able to link with the library to determine support. Assuming that we add something, the additional calls probably belong in the Misc. section of the spec. Anyway, here a couple of possible calls that we could use to determine if a function is stubbed out or not. -Norm papiLibrarySupportedCalls() Description The papiLibrarySupportedCalls() function can be called to request a list of API functions that are supported in the implementation. Support for a function means that the implementation of that function is not a stub that simply returns PAPI_OPERATION_NOT_SUPPORTED. Syntax extern char **papiLibrarySupportedCalls(); Inputs none Outputs none Returns A NULL terminated list of supported function names. This list should not be free'd by the caller. papiLibrarySupportedCall() Description The papiLibrarySupportedCall() function can be called to determine if a specific API call is supported in the implementation. Support for a function means that the implementation of that function is not a stub that simply returns PAPI_OPERATION_NOT_SUPPORTED. Syntax extern char papiLibrarySupportedCall(char *name); Inputs name The name of the function that is being asked about Outputs none Returns A return of PAPI_TRUE indicates that the named function is supported by the API implementation. A return of PAPI_FALSE indicates that the the named function is not supported by the API implementation. Below is a list of functions in the PAPI papiAttributeListAdd Core API Support papiAttributeListAddString Core API Support papiAttributeListAddInteger Core API Support papiAttributeListAddBoolean Core API Support papiAttributeListAddRange Core API Support papiAttributeListAddResolution Core API Support papiAttributeListAddDatetime Core API Support papiAttributeListAddCollection Core API Support papiAttributeListDelete Core API Support papiAttributeListGet Core API Support papiAttributeListGetString Core API Support papiAttributeListGetInteger Core API Support papiAttributeListGetBoolean Core API Support papiAttributeListGetRange Core API Support papiAttributeListGetResolution Core API Support papiAttributeListGetDatetime Core API Support papiAttributeListGetCollection Core API Support papiAttributeListFree Core API Support papiAttributeListFind Core API Support papiAttributeListGetNext Core API Support papiAttributeListFromString Optional API Support papiAttributeListToString Optional API Support papiServiceCreate Core API Support papiServiceDestroy Core API Support papiServiceSetUserName Optional API Support papiServiceSetPassword Optional API Support papiServiceSetEncryption Optional API Support papiServiceSetAuthCB Optional API Support papiServiceSetAppData Optional API Support papiServiceSetServiceName Optional API Support papiServiceGetUserName Optional API Support papiServiceGetPassword Optional API Support papiServiceGetEncryption Optional API Support papiServiceGetAuthCB Optional API Support papiServiceGetAppData Optional API Support papiServiceGetServiceName Optional API Support papiServiceGetStatusMessage Core API Support papiPrintersList Core API Support papiPrinterQuery Core API Support papiPrinterModify Optional API Support papiPrinterPause Optional API Support papiPrinterResume Optional API Support papiPrinterPurgeJobs Optional API Support papiPrinterListJobs Core Printer Support papiPrinterGetAttributeList Core API Support papiPrinterFree Core API Support papiJobSubmit Core Job Support papiJobSubmitByReference Core Job Support papiJobValidate Optional Job Support papiJobStreamOpen Core Job Support papiJobStreamWrite Core Job Support papiJobStreamClose Core Job Support papiJobQuery Core Job Support papiJobModify Optional Job Support papiJobCancel Core Job Support papiJobHold Optional Job Support papiJobRelease Optional Job Support papiJobRestart Optional Job Support papiJobGetAttributeList Core Job Support papiJobGetPrinterName Core Job Support papiJobGetID Core Job Support papiJobGetJobTicket Optional Job Support papiJobFree Core Job Support papiJobListFree Core Job Support papiStatusString Core API Support papiLibrarySupportedCalls Core API Support papiLibrarySupportedCall Core API Support _______________________________________________ printing-discuss mailing list printing-discuss@freestandards.org http://base.freestandards.org/mailman/listinfo/printing-discuss