Re: Where is my file? after I created a filestrem.
> "When the fileModeTemporary open mode is used and the file type passed to > FileOpen is 0, the FileOpen function uses sysFileTTemp (defined in > SystemMgr.rh) for the file type, as recommended. In future versions of Palm > OS, this configuration will enable the automatic cleanup of undeleted > temporary files after a system crash. Automatic post-crash cleanup is not > implemented in current versions of Palm OS." > > You can have a temp file with FileOpen, but you have to set the openMode as > temporary, he is using ReadWrite. i always thought that temp files are deleted on system reset - and, even that depends on the OS version in regards to how it functions exactly. if running on POSE, you should be able to export the database - but, in the long run, yes - he will want to not pass zero for some of those parameters. i did miss that he was passing zero for the file type. good catch, but, ideally - with that flag not being zero - my comments apply :) --- Aaron Ardiri [EMAIL PROTECTED] CEO - CTO +46 70 656 1143 Mobile Wizardry http://www.mobilewizardry.com/ -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
RE: Where is my file? after I created a filestrem.
>From the PalmOS API Reference: "When the fileModeTemporary open mode is used and the file type passed to FileOpen is 0, the FileOpen function uses sysFileTTemp (defined in SystemMgr.rh) for the file type, as recommended. In future versions of Palm OS, this configuration will enable the automatic cleanup of undeleted temporary files after a system crash. Automatic post-crash cleanup is not implemented in current versions of Palm OS." You can have a temp file with FileOpen, but you have to set the openMode as temporary, he is using ReadWrite. Sebas. -Mensaje original- De: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] nombre de Aaron Ardiri Enviado el: martes, 03 de junio de 2003 5:29 Para: Palm Developer Forum Asunto: Re: Where is my file? after I created a filestrem. >> FileHand fileStream; >> fileStream = FileOpen( 0, "MyPalmFile", 0, 0, fileModeReadWrite, NULL ); > > This creates a temporary file... > >> FileSeek (fileStream, 0, fileOriginBeginning ); >> FileWrite(fileStream, name, 1, 20, NULL); >> >> FileClose( fileStream ); > > ... and this deletes it. what are you smoking? FileOpen/FileClose does not create temporary files. this is all part of the File Streaming API. that is, a convenience system for reading/writing to a .pdb file without having to worry about record structures (it stores it as that tho). i have been using this functionality for years, and, it is NOT temporary file stuff. in light of the problem, the original poster emailed me privately - and, the email should probably be here in public for forum archive purposes. === Q: how to get access to the data written using FileOpen POSE: use the export database option in the emulator DEVICE: set backup bit, sync - database will be in backup directory Q: how to read/write the data stored in the .pdb file? use a desktop utility called 'par' http://www.djw.org/product/palm/par/ it will allow you to manipulate file streams directly. === hopefully that will end all discussions on this topic. RTFM guys. dont email me privately - the forums exist for a reason, and, i get enough 'how to i program' type emails a day - i dont need to be flooded with more :) thanks for understanding. --- Aaron Ardiri [EMAIL PROTECTED] CEO - CTO +46 70 656 1143 Mobile Wizardry http://www.mobilewizardry.com/ -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/ -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
Re: Where is my file? after I created a filestrem.
>> FileHand fileStream; >> fileStream = FileOpen( 0, "MyPalmFile", 0, 0, fileModeReadWrite, NULL ); > > This creates a temporary file... > >> FileSeek (fileStream, 0, fileOriginBeginning ); >> FileWrite(fileStream, name, 1, 20, NULL); >> >> FileClose( fileStream ); > > ... and this deletes it. what are you smoking? FileOpen/FileClose does not create temporary files. this is all part of the File Streaming API. that is, a convenience system for reading/writing to a .pdb file without having to worry about record structures (it stores it as that tho). i have been using this functionality for years, and, it is NOT temporary file stuff. in light of the problem, the original poster emailed me privately - and, the email should probably be here in public for forum archive purposes. === Q: how to get access to the data written using FileOpen POSE: use the export database option in the emulator DEVICE: set backup bit, sync - database will be in backup directory Q: how to read/write the data stored in the .pdb file? use a desktop utility called 'par' http://www.djw.org/product/palm/par/ it will allow you to manipulate file streams directly. === hopefully that will end all discussions on this topic. RTFM guys. dont email me privately - the forums exist for a reason, and, i get enough 'how to i program' type emails a day - i dont need to be flooded with more :) thanks for understanding. --- Aaron Ardiri [EMAIL PROTECTED] CEO - CTO +46 70 656 1143 Mobile Wizardry http://www.mobilewizardry.com/ -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
Re: Where is my file? after I created a filestrem.
> I am using Palm OS 5, I try to create a file stream, the code as following > FileHand fileStream; > fileStream = FileOpen( 0, "MyPalmFile", 0, 0, fileModeReadWrite, NULL ); This creates a temporary file... > FileSeek (fileStream, 0, fileOriginBeginning ); > FileWrite(fileStream, name, 1, 20, NULL); > > FileClose( fileStream ); ... and this deletes it. > I am using CodeWarrior and Palm Emulator. It should create a file stream, but I can't find it in my hard driver. Could any expert tell me where it is?? -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
Re: Where is my file? after I created a filestrem.
> I am using Palm OS 5, I try to create a file stream, the code as following > > ... > FileHand fileStream; > fileStream = FileOpen( 0, "MyPalmFile", 0, 0, fileModeReadWrite, NULL ); > > FileSeek (fileStream, 0, fileOriginBeginning ); > FileWrite(fileStream, name, 1, 20, NULL); > > FileClose( fileStream ); > .. > > I am using CodeWarrior and Palm Emulator. It should create a file > stream, but I can't find it in my hard driver. Could any expert > tell me where it is?? if you set the backup bit, and, sync - it'll be called "MyPalmFile.pdb" if you want to create a file on external memory, you may want to look at the VFS api's. filestreaming goes way back to palmos 3.0 - and, was designed as an easy way to access data in the old palm database format (back when VFS didn't exist) unfortunately, the format was never documented that well - but, many have reverse engineered it (including myself) successfully - par and other utilities can be used to generate or process these resources. identify what it is you really want to do :) --- Aaron Ardiri [EMAIL PROTECTED] CEO - CTO +46 70 656 1143 Mobile Wizardry http://www.mobilewizardry.com/ -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
