5270b33bd3
in 64-bit. Currently, a signed off_t type is being used for the following interfaces for both offset and the length in bytes: * `Allocate` * `RangeSync` On Linux `off_t` is automatically either 32 or 64-bit depending on the platform. On Windows it is always a 32-bit signed long which limits file access and in particular space pre-allocation to effectively 2 Gb. Proposal is to replace off_t with uint64_t as a portable type always access files with 64-bit interfaces. May need to modify posix code but lack resources to test it.
This directory contains interfaces and implementations that isolate the rest of the package from platform details. Code in the rest of the package includes "port.h" from this directory. "port.h" in turn includes a platform specific "port_<platform>.h" file that provides the platform specific implementation. See port_posix.h for an example of what must be provided in a platform specific header file.