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osdep: clarify and rename a constant on win32 

This is about the maximum filename not path length.
This commit is contained in:
sfan5 2023-12-23 18:44:55 +01:00
parent dd48a53b65
commit f57ec94d9f
1 changed files with 5 additions and 3 deletions
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8
osdep/io.c
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@ -558,7 +558,9 @@ FILE *mp_fopen(const char *filename, const char *mode)
// Thus we need MP_PATH_MAX as the UTF-8/char version of PATH_MAX. // Thus we need MP_PATH_MAX as the UTF-8/char version of PATH_MAX.
// Also make sure there's free space for the terminating \0. // Also make sure there's free space for the terminating \0.
// (For codepoints encoded as UTF-16 surrogate pairs, UTF-8 has the same length.) // (For codepoints encoded as UTF-16 surrogate pairs, UTF-8 has the same length.)
#define MP_PATH_MAX (FILENAME_MAX * 3 + 1) // Lastly, note that neither _wdirent nor WIN32_FIND_DATA can store filenames
// longer than this, so long-path support for readdir() is impossible.
#define MP_FILENAME_MAX (FILENAME_MAX * 3 + 1)
struct mp_dir { struct mp_dir {
DIR crap; // must be first member DIR crap; // must be first member
@ -568,9 +570,9 @@ struct mp_dir {
// dirent has space only for FILENAME_MAX bytes. _wdirent has space for // dirent has space only for FILENAME_MAX bytes. _wdirent has space for
// FILENAME_MAX wchar_t, which might end up bigger as UTF-8 in some // FILENAME_MAX wchar_t, which might end up bigger as UTF-8 in some
// cases. Guarantee we can always hold _wdirent.d_name converted to // cases. Guarantee we can always hold _wdirent.d_name converted to
// UTF-8 (see MP_PATH_MAX). // UTF-8 (see above).
// This works because dirent.d_name is the last member of dirent. // This works because dirent.d_name is the last member of dirent.
char space[MP_PATH_MAX]; char space[MP_FILENAME_MAX];
}; };
}; };