Macintosh-SW/mpw
1
0
Fork 0
mirror of https://github.com/ksherlock/mpw.git synced 2025-01-24 03:34:42 +00:00
Code Issues Projects Releases Wiki Activity

Write, SetEOF, SetFPos, mac_seek

Browse Source
This commit is contained in:
Kelvin Sherlock 2013-03-03 22:07:25 -05:00
parent fea833311a
commit 77feba11f5
5 changed files with 162 additions and 59 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

174
toolbox/os.cpp
View File

@ -298,16 +298,15 @@ namespace OS
bool rf = trap == 0xa00a;
const char *modifier = nullptr;
switch(trap)
{
case 0xa000:
Log("%04x Open(%08x)\n", trap, parm);
break;
case 0xa00a:
Log("%04x OpenRF(%08x)\n", trap, parm);
modifier = "RF";
break;
}
Log("%04x Open%s(%08x)\n", trap, modifier, parm);
//uint32_t ioCompletion = memoryReadLong(parm + 12);
uint32_t namePtr = memoryReadLong(parm + 18);
@ -325,7 +324,6 @@ namespace OS
memoryWriteWord(bdNamErr, parm + 16);
return bdNamErr;
}
Log(" Open(%s)\n", sname.c_str());
int access = 0;
@ -354,6 +352,7 @@ namespace OS
sname.append(_PATH_RSRCFORKSPEC);
Log(" open(%s, %04x)\n", xname.c_str(), access);
int fd = ::open(sname.c_str(), access);
if (fd < 0 && ioPermission == fsCurPerm && errno == EACCES)
{
@ -381,6 +380,7 @@ namespace OS
uint16_t Read(uint16_t trap)
{
uint32_t d0;
int32_t pos;
uint32_t parm = cpuGetAReg(0);
Log("%04x Read(%08x)\n", trap, parm);
@ -400,61 +400,18 @@ namespace OS
return d0;
}
off_t currentPos = ::lseek(ioRefNum, 0, SEEK_CUR);
if (currentPos < 0)
pos = Internal::mac_seek(ioRefNum, ioPosMode, ioPosOffset);
if (pos < 0)
{
if (errno != ESPIPE)
{
d0 = errno_to_oserr(errno);
memoryWriteWord(d0, parm + 16);
return d0;
}
currentPos = 0;
}
off_t pos = 0;
d0 = pos;
pos = 0;
switch(ioPosMode)
{
case fsFromStart:
pos = ioPosOffset;
break;
case fsFromMark:
pos = currentPos + ioPosOffset;
break;
case fsFromLEOF:
{
struct stat st;
int rv;
rv = ::fstat(ioRefNum, &st);
if (rv < 0)
{
}
pos = st.st_size + ioPosOffset;
}
break;
case fsAtMark:
pos = currentPos;
break;
default:
d0 = paramErr;
memoryWriteWord(d0, parm + 16);
return d0;
break;
}
if (pos != currentPos)
{
int rv = ::lseek(ioRefNum, pos, SEEK_SET);
if (rv < 0)
{
d0 = paramErr;
memoryWriteWord(d0, parm + 16);
return d0;
}
memoryWriteLong(pos, parm + 46); // new offset.
memoryWriteWord(d0, parm + 16);
return d0;
}
Log(" read(%04x, %08x, %08x)\n", ioRefNum, ioBuffer, ioReqCount);
ssize_t count = OS::Internal::FDEntry::read(ioRefNum, memoryPointer(ioBuffer), ioReqCount);
if (count >= 0)
{
@ -474,11 +431,68 @@ namespace OS
memoryWriteLong(pos, parm + 46); // new offset.
memoryWriteWord(d0, parm + 16);
return d0;
return d0;
}
uint16_t Write(uint16_t trap)
{
uint32_t d0;
int32_t pos;
uint32_t parm = cpuGetAReg(0);
Log("%04x Write(%08x)\n", trap, parm);
//uint32_t ioCompletion = memoryReadLong(parm + 12);
uint16_t ioRefNum = memoryReadWord(parm + 24);
uint32_t ioBuffer = memoryReadLong(parm + 32);
int32_t ioReqCount = memoryReadLong(parm + 36);
uint16_t ioPosMode = memoryReadWord(parm + 44);
int32_t ioPosOffset = memoryReadLong(parm + 46);
if (ioReqCount < 0)
{
d0 = paramErr;
memoryWriteWord(d0, parm + 16);
return d0;
}
pos = Internal::mac_seek(ioRefNum, ioPosMode, ioPosOffset);
if (pos < 0)
{
d0 = pos;
pos = 0;
memoryWriteLong(pos, parm + 46); // new offset.
memoryWriteWord(d0, parm + 16);
return d0;
}
ssize_t count = OS::Internal::FDEntry::write(ioRefNum, memoryPointer(ioBuffer), ioReqCount);
if (count >= 0)
{
d0 = 0;
pos += count;
memoryWriteLong(count, parm + 40);
}
if (count < 0)
{
d0 = errno_to_oserr(errno);
}
memoryWriteLong(pos, parm + 46); // new offset.
memoryWriteWord(d0, parm + 16);
return d0;
}
uint16_t Delete(uint16_t trap)
{
@ -544,6 +558,52 @@ namespace OS
return d0;
}
uint16_t SetEOF(uint16_t trap)
{
uint32_t d0;
uint32_t parm = cpuGetAReg(0);
Log("%04x SetEOF(%08x)\n", trap, parm);
//uint32_t ioCompletion = memoryReadLong(parm + 12);
uint16_t ioRefNum = memoryReadWord(parm + 24);
uint32_t ioMisc = memoryReadLong(parm + 28);
int rv = ::ftruncate(ioRefNum, ioMisc);
d0 = rv < 0 ? errno_to_oserr(errno) : 0;
memoryWriteWord(d0, parm + 16);
return d0;
}
uint16_t SetFPos(uint16_t trap)
{
uint32_t d0;
uint32_t parm = cpuGetAReg(0);
Log("%04x SetFPos(%08x)\n", trap, parm);
//uint32_t ioCompletion = memoryReadLong(parm + 12);
uint16_t ioRefNum = memoryReadWord(parm + 24);
uint16_t ioPosMode = memoryReadWord(parm + 44);
int32_t ioPosOffset = memoryReadLong(parm + 46);
ioPosOffset = Internal::mac_seek(ioRefNum, ioPosMode, ioPosOffset);
d0 = 0;
if (ioPosOffset < 0)
{
d0 = ioPosOffset;
ioPosOffset = 0;
}
memoryWriteLong(ioPosOffset, parm + 46); // new offset.
memoryWriteWord(d0, parm + 16);
return d0;
}
// return the name of the default volume.

5
toolbox/os.h
View File

@ -43,10 +43,15 @@ namespace OS
uint16_t SetFileInfo(uint16_t trap);
uint16_t GetEOF(uint16_t trap);
uint16_t SetEOF(uint16_t trap);
uint16_t SetFPos(uint16_t trap);
uint16_t GetVol(uint16_t trap);
uint16_t Open(uint16_t trap);
uint16_t Read(uint16_t trap);
uint16_t Write(uint16_t trap);
#pragma mark String Utilities
uint16_t CmpString(uint16_t trap);

25
toolbox/os_internal.cpp
View File

@ -1,4 +1,5 @@
#include "os_internal.h"
#include "os.h"
#include "toolbox.h"
#include <stdexcept>
@ -41,6 +42,30 @@ namespace OS { namespace Internal {
}
int32_t mac_seek(uint16_t refNum, uint16_t mode, int32_t offset)
{
off_t rv;
switch (mode & 0x03)
{
case OS::fsAtMark:
mode = SEEK_CUR;
offset = 0;
break;
case OS::fsFromStart:
mode = SEEK_SET;
break;
case OS::fsFromLEOF:
mode = SEEK_END;
break;
case OS::fsFromMark:
mode = SEEK_CUR;
break;
}
rv = ::lseek(refNum, offset, mode);
if (rv < 0) return errno_to_oserr(errno);
return rv;
}
//std::deque<FDEntry> FDTable;

2
toolbox/os_internal.h
View File

@ -13,6 +13,8 @@ namespace OS { namespace Internal {
uint16_t GetFileType(const std::string &pathname, uint16_t *fileType, uint32_t *auxType);
int32_t mac_seek(uint16_t refNum, uint16_t mode, int32_t offset);
struct FDEntry
{
int refcount;

15
toolbox/toolbox.cpp
View File

@ -43,6 +43,10 @@ namespace ToolBox {
d0 = OS::Read(trap);
break;
case 0xa003:
d0 = OS::Write(trap);
break;
case 0xa008:
d0 = OS::Create(trap);
break;
@ -61,14 +65,21 @@ namespace ToolBox {
case 0xa011:
d0 = OS::GetEOF(trap);
break;
case 0xa012:
d0 = OS::SetEOF(trap);
break;
case 0xa014:
d0 = OS::GetVol(trap);
break;
case 0xa260:
d0 = OS::HFSDispatch(trap);
case 0xa044:
d0 = OS::SetFPos(trap);
break;
//case 0xa260:
// d0 = OS::HFSDispatch(trap);
// break;
case 0xaa52:
d0 = OS::HighLevelHFSDispatch(trap);