nvml's `nvmlProcessInfo_t` `struct` uses the wrong type for `pid`

[SamuelMarks]

https://docs.nvidia.com/deploy/nvml-api/structnvmlProcessInfo__t.html#structnvmlProcessInfo__t_107c2ccda774b8bee86e68c3d3962533c

The type should be pid_t, e.g., see:

• Linux: https://man7.org/linux/man-pages/man2/getpid.2.html https://linux.die.net/man/2/getpid
• POSIX: https://pubs.opengroup.org/onlinepubs/009696699/functions/getpid.html
• zOS: https://www.ibm.com/docs/en/zos/2.4.0?topic=functions-getpid-get-process-id
• FreeBSD: https://man.freebsd.org/cgi/man.cgi?query=getpid&sektion=2

Some popular libc documentation:

• https://www.gnu.org/software/libc/manual/html_node/Process-Identification.html "The pid_t data type is a signed integer type which is capable of representing a process ID. In the GNU library, this is an int."
• https://github.com/llvm/llvm-project/blob/4f1474d/libc/include/llvm-libc-types/pid_t.h typedef __INT32_TYPE__ pid_t;
• http://git.musl-libc.org/cgit/musl/tree/include/alltypes.h.in TYPEDEF int pid_t;

Can you get the NVIDIA folk to change the type to match PIDs on all platforms? - As unsigned int seems to never be the right option.

[elezar]

@SamuelMarks this repo contains the golang bindings for NVML and we are as such only consumers of the header files. I will see if I can find out where this query / report can be directed.