This implementation creates a temporary file (suffixed with .tmp) and
renames it to the expected file name when the file is closed.
If the renaming fails, the destination file is removed and renaming is
tried again to handle cases where renaming over an existing file is not
supported by the underlying OS.
When creating an atomic write stream, the file is only created once it
is closed.
This can be done using a temporary file.
This commit only adds the API but not the proper implementation.
Apple's desktop operating system was formerly called "Mac OS X" and "OS X", but since 2016 it has been called "macOS" (starting with version 10.12).
Changing across all comments and documentation to use this current terminology, except in cases where the historical versions are explicitly referenced. No code changes are made; we should consider changing those in future PRs.
The Vita SDK gained support for dirent at the end of 2017. There is no
need to have our own version anymore.
DrivesPOSIXFilesystemFactory allows to specify the contents of the
pseudo-root file system node. There is no need to hardcode them in
posix-fs.cpp anymore.
fstat is generally faster as is does not cause the IO buffer to be
invalidated / refilled.
Benchmark results for the startup time of the SCI engine with Gabriel
Knight 1 CD:
- Linux, glibc, spinning HDD, fseek/ftell: 140 ms
- Linux, glibc, spinning HDD, fstat: 100 ms
- 3DS, newlib, SD card, fseek/ftell: 68 s
- 3DS, newlib, SD card, fstat: 11 s
This sets Android as a non-standard port in configure in order to override the definition for vsn_printf
The vsn_printf implementation is taken from https://github.com/weiss/c99-snprintf
DumpFile::open() with createPath=true create would create the missing
directories from the path before opening a file. Thus, one can easily
create a file and avoid "can't open a file" error.
So far, the various *-fs-factory.cpp files were #including the
corresponding *-fs.cpp files. This is surprising and hence could lead to
all kinds of problems). To fix this, provide proper headers for the
*-fs.cpp files.
This also makes code reuse via subclassing possible.
Since not all ports were tested, this will likely lead to a few
easy to fix compile regressions.
