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Home » U++ Library support » U++ Core » LoadFile("/sys/devices/virtual/thermal/ ...") does not work
Re: LoadFile("/sys/devices/virtual/thermal/ ...") does not work [message #58386 is a reply to message #58302] Mon, 16 May 2022 10:48 Go to previous messageGo to previous message
mirek is currently offline  mirek
Messages: 13986
Registered: November 2005
Ultimate Member
Quote:

More edit: It turns out that files in "/proc" or "/sys" are not really files. Not on disk, but not even in memory. Their contents is generated by the kernel on the fly. So, there is no way to tell their size and so fstat() returns zero. Only way to read them is to just read() them in until EOF.

Maybe they could be read up to the buffer (page) size and if the EOF is encountered, the filesize becomes determined...?


Well, one simple possible solution is to change LoadFile... However, it will then need to be implemented for every platform.

Mirek
 
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