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Remove: Remnants of PSP support.

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No active target is that limited in concurrent file descriptors.
This commit is contained in:
Michael Lutz 2020-12-21 18:21:59 +01:00
parent 914fb4c987
commit 5575cb9133
1 changed files with 1 additions and 56 deletions
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57
src/fileio.cpp
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@ -46,10 +46,6 @@ struct Fio {
byte buffer_start[FIO_BUFFER_SIZE]; ///< local buffer when read from file
const char *filenames[MAX_FILE_SLOTS]; ///< array of filenames we (should) have open
char *shortnames[MAX_FILE_SLOTS]; ///< array of short names for spriteloader's use
#if defined(LIMITED_FDS)
uint open_handles; ///< current amount of open handles
uint usage_count[MAX_FILE_SLOTS]; ///< count how many times this file has been opened
#endif /* LIMITED_FDS */
};
static Fio _fio; ///< #Fio instance.
@ -94,18 +90,6 @@ void FioSeekTo(size_t pos, int mode)
}
}
#if defined(LIMITED_FDS)
static void FioRestoreFile(int slot)
{
/* Do we still have the file open, or should we reopen it? */
if (_fio.handles[slot] == nullptr) {
DEBUG(misc, 6, "Restoring file '%s' in slot '%d' from disk", _fio.filenames[slot], slot);
FioOpenFile(slot, _fio.filenames[slot]);
}
_fio.usage_count[slot]++;
}
#endif /* LIMITED_FDS */
/**
* Switch to a different file and seek to a position.
* @param slot Slot number of the new file.
@ -113,12 +97,7 @@ static void FioRestoreFile(int slot)
*/
void FioSeekToFile(uint8 slot, size_t pos)
{
FILE *f;
#if defined(LIMITED_FDS)
/* Make sure we have this file open */
FioRestoreFile(slot);
#endif /* LIMITED_FDS */
f = _fio.handles[slot];
FILE *f = _fio.handles[slot];
assert(f != nullptr);
_fio.cur_fh = f;
_fio.filename = _fio.filenames[slot];
@ -202,9 +181,6 @@ static inline void FioCloseFile(int slot)
_fio.shortnames[slot] = nullptr;
_fio.handles[slot] = nullptr;
#if defined(LIMITED_FDS)
_fio.open_handles--;
#endif /* LIMITED_FDS */
}
}
@ -216,30 +192,6 @@ void FioCloseAll()
}
}
#if defined(LIMITED_FDS)
static void FioFreeHandle()
{
/* If we are about to open a file that will exceed the limit, close a file */
if (_fio.open_handles + 1 == LIMITED_FDS) {
uint i, count;
int slot;
count = UINT_MAX;
slot = -1;
/* Find the file that is used the least */
for (i = 0; i < lengthof(_fio.handles); i++) {
if (_fio.handles[i] != nullptr && _fio.usage_count[i] < count) {
count = _fio.usage_count[i];
slot = i;
}
}
assert(slot != -1);
DEBUG(misc, 6, "Closing filehandler '%s' in slot '%d' because of fd-limit", _fio.filenames[slot], slot);
FioCloseFile(slot);
}
}
#endif /* LIMITED_FDS */
/**
* Open a slotted file.
* @param slot Index to assign.
@ -250,9 +202,6 @@ void FioOpenFile(int slot, const char *filename, Subdirectory subdir)
{
FILE *f;
#if defined(LIMITED_FDS)
FioFreeHandle();
#endif /* LIMITED_FDS */
f = FioFOpenFile(filename, "rb", subdir);
if (f == nullptr) usererror("Cannot open file '%s'", filename);
long pos = ftell(f);
@ -269,10 +218,6 @@ void FioOpenFile(int slot, const char *filename, Subdirectory subdir)
if (t2 != nullptr) *t2 = '\0';
strtolower(_fio.shortnames[slot]);
#if defined(LIMITED_FDS)
_fio.usage_count[slot] = 0;
_fio.open_handles++;
#endif /* LIMITED_FDS */
FioSeekToFile(slot, (uint32)pos);
}