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check duplicate mount

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This commit is contained in:
kanjitalk755 2023-08-07 10:30:04 +09:00
parent a94a41885b
commit e90180a2c3
1 changed files with 12 additions and 4 deletions
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16
BasiliskII/src/cdrom.cpp
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@ -124,8 +124,8 @@ static const uint8 bcd2bin[256] = {
// Struct for each drive
struct cdrom_drive_info {
cdrom_drive_info() : num(0), fh(NULL), start_byte(0), status(0) {}
cdrom_drive_info(void *fh_) : num(0), fh(fh_), start_byte(0), status(0) {}
cdrom_drive_info() : num(0), fh(NULL), start_byte(0), status(0), drop(false) {}
cdrom_drive_info(void *fh_) : num(0), fh(fh_), start_byte(0), status(0), drop(false) {}
void close_fh(void) { SysAllowRemoval(fh); Sys_close(fh); }
@ -147,6 +147,7 @@ struct cdrom_drive_info {
bool repeat; // Repeat flag
uint8 power_mode; // Power mode
uint32 status; // Mac address of drive status record
bool drop;
};
// List of drives handled by this driver
@ -321,8 +322,14 @@ void CDROMInit(void)
}
void CDROMDrop(const char *path) {
if (!drives.empty())
drives.front().fh = Sys_open(path, true, true);
if (!drives.empty()) {
cdrom_drive_info &info = drives.back();
if (!info.drop) {
info.fh = Sys_open(path, true, true);
if (info.fh)
info.drop = true;
}
}
}
/*
@ -567,6 +574,7 @@ int16 CDROMControl(uint32 pb, uint32 dce)
info->twok_offset = -1;
info->close_fh();
info->fh = NULL;
info->drop = false;
return noErr;
} else {
return offLinErr;