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minor updates

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This commit is contained in:
Kelvin Sherlock 2015-01-08 14:10:48 -05:00
parent ff9a0aad3e
commit f42c8e06dd
3 changed files with 49 additions and 7 deletions
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49
toolbox/os.cpp
View File

@ -836,6 +836,50 @@ namespace OS
uint16_t HGetVInfo(uint16_t trap)
{
/*
* The PBHGetVInfo function returns information about the specified
* volume. If the value of ioVolIndex is positive, the File Manager
* attempts to use it to find the volume; for instance, if the
* value of ioVolIndex is 2, the File Manager attempts to access
* the second mounted volume in the VCB queue. If the value of
* ioVolIndex is negative, the File Manager uses ioNamePtr and
* ioVRefNum in the standard way to determine the volume. If the
* value of ioVolIndex is 0, the File Manager attempts to access
* the volume by using ioVRefNum only. The volume reference number
* is returned in ioVRefNum, and the volume name is returned in
* the buffer whose address you passed in ioNamePtr. You should
* pass a pointer to a Str31 value if you want that name returned.
* If you pass NIL in the ioNamePtr field, no volume name is
* returned.
*
* If you pass a working directory reference number in ioVRefNum
* (or if the default directory is a subdirectory), the number
* of files and directories in the specified directory (the
* directory’s valence) is returned in ioVNmFls.
*
* You can read the ioVDrvInfo and ioVDRefNum fields to determine
* whether the specified volume is online, offline, or ejected.
* For online volumes, ioVDrvInfo contains the drive number of
* the drive containing the specified volume and hence is always
* greater than 0. If the value returned in ioVDrvInfo is 0, the
* volume is either offline or ejected. You can determine whether
* the volume is offline or ejected by inspecting the value of
* the ioVDRefNum field. For online volumes, ioVDRefNum contains
* a driver reference number; these numbers are always less than
* 0. If the volume is not online, the value of ioVDRefNum is
* either the negative of the drive number (if the volume is
* offline) or the drive number itself (if the volume is ejected).
*
*
* You can get information about all the online volumes by making
* repeated calls to PBHGetVInfo, starting with the value of
* ioVolIndex set to 1 and incrementing that value until PBHGetVInfo
* returns nsvErr.
*/
enum {
/* HVolumeParam */
_qLink = 0,
@ -880,7 +924,10 @@ namespace OS
Log("%04x HGetVInfo(%08x)\n", trap, parm);
return MacOS::nsvErr;
d0 = MacOS::nsvErr;
memoryWriteWord(d0, parm + _ioResult);
return d0;
}

2
toolbox/os_hfs_dispatch.cpp
View File

@ -107,7 +107,7 @@ namespace OS {
// and move to common internal code.
ToolBox::WritePString(ioNamePtr, std::string("MacOS"));
if (ioNamePtr) ToolBox::WritePString(ioNamePtr, std::string("MacOS"));
memoryWriteWord(-1, parm + _ioVRefNum);
memoryWriteLong(0, parm + _ioWDProcID);
memoryWriteWord(-1, parm + _ioWDVRefNum);

5
toolbox/os_highlevel.cpp
View File

@ -87,11 +87,6 @@ namespace OS {
// expand the path. Also handles relative paths.
char *cp = ::fs_spec_realpath(path.c_str(), buffer);
if (!cp)
{
fprintf(stderr, "realpath failed %s\n", path.c_str());
return "";
}
return std::string(cp);
}