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freeswitch/libs/js/nsprpub/pr/src/md/os2/os2io.c
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Brian West fff98f6316 add js to tree 
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@3693 d0543943-73ff-0310-b7d9-9358b9ac24b2
2006-12-18 15:53:47 +00:00

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Netscape Portable Runtime (NSPR).
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
* This Original Code has been modified by IBM Corporation.
* Modifications made by IBM described herein are
* Copyright (c) International Business Machines
* Corporation, 2000
*
* Modifications to Mozilla code or documentation
* identified per MPL Section 3.3
*
* Date Modified by Description of modification
* 03/23/2000 IBM Corp. Changed write() to DosWrite(). EMX i/o
* calls cannot be intermixed with DosXXX
* calls since EMX remaps file/socket
* handles.
* 04/27/2000 IBM Corp. Changed open file to be more like NT and
* better handle PR_TRUNCATE | PR_CREATE_FILE
* and also fixed _PR_MD_SET_FD_INHERITABLE
*/
/* OS2 IO module
*
* Assumes synchronous I/O.
*
*/
#include "primpl.h"
#include "prio.h"
#include <ctype.h>
#include <string.h>
#ifdef XP_OS2_VACPP
#include <direct.h>
#else
#include <limits.h>
#include <dirent.h>
#include <fcntl.h>
#include <io.h>
#endif
struct _MDLock _pr_ioq_lock;
static PRBool isWSEB = PR_FALSE; /* whether we are using an OS/2 kernel that supports large files */
typedef APIRET (*DosOpenLType)(PSZ pszFileName, PHFILE pHf, PULONG pulAction,
LONGLONG cbFile, ULONG ulAttribute,
ULONG fsOpenFlags, ULONG fsOpenMode,
PEAOP2 peaop2);
typedef APIRET (*DosSetFileLocksLType)(HFILE hFile, PFILELOCKL pflUnlock,
PFILELOCKL pflLock, ULONG timeout,
ULONG flags);
typedef APIRET (*DosSetFilePtrLType)(HFILE hFile, LONGLONG ib, ULONG method,
PLONGLONG ibActual);
DosOpenLType myDosOpenL;
DosSetFileLocksLType myDosSetFileLocksL;
DosSetFilePtrLType myDosSetFilePtrL;
void
_PR_MD_INIT_IO()
{
APIRET rc;
HMODULE module;
sock_init();
rc = DosLoadModule(NULL, 0, "DOSCALL1", &module);
if (rc != NO_ERROR)
{
return;
}
rc = DosQueryProcAddr(module, 981, NULL, (PFN*) &myDosOpenL);
if (rc != NO_ERROR)
{
return;
}
rc = DosQueryProcAddr(module, 986, NULL, (PFN*) &myDosSetFileLocksL);
if (rc != NO_ERROR)
{
return;
}
rc = DosQueryProcAddr(module, 988, NULL, (PFN*) &myDosSetFilePtrL);
if (rc != NO_ERROR)
{
return;
}
isWSEB = PR_TRUE;
}
PRStatus
_PR_MD_WAIT(PRThread *thread, PRIntervalTime ticks)
{
PRInt32 rv;
ULONG count;
PRUint32 msecs = (ticks == PR_INTERVAL_NO_TIMEOUT) ?
SEM_INDEFINITE_WAIT : PR_IntervalToMilliseconds(ticks);
rv = DosWaitEventSem(thread->md.blocked_sema, msecs);
DosResetEventSem(thread->md.blocked_sema, &count);
switch(rv)
{
case NO_ERROR:
return PR_SUCCESS;
break;
case ERROR_TIMEOUT:
_PR_THREAD_LOCK(thread);
if (thread->state == _PR_IO_WAIT) {
;
} else {
if (thread->wait.cvar != NULL) {
thread->wait.cvar = NULL;
_PR_THREAD_UNLOCK(thread);
} else {
/* The CVAR was notified just as the timeout
* occurred. This led to us being notified twice.
* call SemRequest() to clear the semaphore.
*/
_PR_THREAD_UNLOCK(thread);
rv = DosWaitEventSem(thread->md.blocked_sema, 0);
DosResetEventSem(thread->md.blocked_sema, &count);
PR_ASSERT(rv == NO_ERROR);
}
}
return PR_SUCCESS;
break;
default:
break;
}
return PR_FAILURE;
}
PRStatus
_PR_MD_WAKEUP_WAITER(PRThread *thread)
{
if ( _PR_IS_NATIVE_THREAD(thread) )
{
if (DosPostEventSem(thread->md.blocked_sema) != NO_ERROR)
return PR_FAILURE;
else
return PR_SUCCESS;
}
}
/* --- FILE IO ----------------------------------------------------------- */
/*
* _PR_MD_OPEN() -- Open a file
*
* returns: a fileHandle
*
* The NSPR open flags (osflags) are translated into flags for OS/2
*
* Mode seems to be passed in as a unix style file permissions argument
* as in 0666, in the case of opening the logFile.
*
*/
PRInt32
_PR_MD_OPEN(const char *name, PRIntn osflags, int mode)
{
HFILE file;
PRInt32 access = OPEN_SHARE_DENYNONE;
PRInt32 flags = 0L;
APIRET rc = 0;
PRUword actionTaken;
if (osflags & PR_SYNC) access |= OPEN_FLAGS_WRITE_THROUGH;
if (osflags & PR_RDONLY)
access |= OPEN_ACCESS_READONLY;
else if (osflags & PR_WRONLY)
access |= OPEN_ACCESS_WRITEONLY;
else if(osflags & PR_RDWR)
access |= OPEN_ACCESS_READWRITE;
if ( osflags & PR_CREATE_FILE && osflags & PR_EXCL )
{
flags = OPEN_ACTION_CREATE_IF_NEW | OPEN_ACTION_FAIL_IF_EXISTS;
}
else if (osflags & PR_CREATE_FILE)
{
if (osflags & PR_TRUNCATE)
flags = OPEN_ACTION_CREATE_IF_NEW | OPEN_ACTION_REPLACE_IF_EXISTS;
else
flags = OPEN_ACTION_CREATE_IF_NEW | OPEN_ACTION_OPEN_IF_EXISTS;
}
else
{
if (osflags & PR_TRUNCATE)
flags = OPEN_ACTION_FAIL_IF_NEW | OPEN_ACTION_REPLACE_IF_EXISTS;
else
flags = OPEN_ACTION_FAIL_IF_NEW | OPEN_ACTION_OPEN_IF_EXISTS;
}
do {
if (isWSEB)
{
rc = myDosOpenL((char*)name,
&file, /* file handle if successful */
&actionTaken, /* reason for failure */
0, /* initial size of new file */
FILE_NORMAL, /* file system attributes */
flags, /* Open flags */
access, /* Open mode and rights */
0); /* OS/2 Extended Attributes */
}
else
{
rc = DosOpen((char*)name,
&file, /* file handle if successful */
&actionTaken, /* reason for failure */
0, /* initial size of new file */
FILE_NORMAL, /* file system attributes */
flags, /* Open flags */
access, /* Open mode and rights */
0); /* OS/2 Extended Attributes */
};
if (rc == ERROR_TOO_MANY_OPEN_FILES) {
ULONG CurMaxFH = 0;
LONG ReqCount = 20;
APIRET rc2;
rc2 = DosSetRelMaxFH(&ReqCount, &CurMaxFH);
if (rc2 != NO_ERROR) {
break;
}
}
} while (rc == ERROR_TOO_MANY_OPEN_FILES);
if (rc != NO_ERROR) {
_PR_MD_MAP_OPEN_ERROR(rc);
return -1;
}
return (PRInt32)file;
}
PRInt32
_PR_MD_READ(PRFileDesc *fd, void *buf, PRInt32 len)
{
ULONG bytes;
int rv;
rv = DosRead((HFILE)fd->secret->md.osfd,
(PVOID)buf,
len,
&bytes);
if (rv != NO_ERROR)
{
/* ERROR_HANDLE_EOF can only be returned by async io */
PR_ASSERT(rv != ERROR_HANDLE_EOF);
if (rv == ERROR_BROKEN_PIPE)
return 0;
else {
_PR_MD_MAP_READ_ERROR(rv);
return -1;
}
}
return (PRInt32)bytes;
}
PRInt32
_PR_MD_WRITE(PRFileDesc *fd, const void *buf, PRInt32 len)
{
PRInt32 bytes;
int rv;
rv = DosWrite((HFILE)fd->secret->md.osfd,
(PVOID)buf,
len,
(PULONG)&bytes);
if (rv != NO_ERROR)
{
_PR_MD_MAP_WRITE_ERROR(rv);
return -1;
}
if (len != bytes) {
rv = ERROR_DISK_FULL;
_PR_MD_MAP_WRITE_ERROR(rv);
return -1;
}
return bytes;
} /* --- end _PR_MD_WRITE() --- */
PRInt32
_PR_MD_LSEEK(PRFileDesc *fd, PRInt32 offset, PRSeekWhence whence)
{
PRInt32 rv;
PRUword newLocation;
rv = DosSetFilePtr((HFILE)fd->secret->md.osfd, offset, whence, &newLocation);
if (rv != NO_ERROR) {
_PR_MD_MAP_LSEEK_ERROR(rv);
return -1;
} else
return newLocation;
}
PRInt64
_PR_MD_LSEEK64(PRFileDesc *fd, PRInt64 offset, PRSeekWhence whence)
{
#ifdef NO_LONG_LONG
PRInt64 result;
PRInt32 rv, low = offset.lo, hi = offset.hi;
PRUword newLocation;
rv = DosSetFilePtr((HFILE)fd->secret->md.osfd, low, whence, &newLocation);
rv = DosSetFilePtr((HFILE)fd->secret->md.osfd, hi, FILE_CURRENT, &newLocation);
if (rv != NO_ERROR) {
_PR_MD_MAP_LSEEK_ERROR(rv);
hi = newLocation = -1;
}
result.lo = newLocation;
result.hi = hi;
return result;
#else
PRInt32 where, rc, lo = (PRInt32)offset, hi = (PRInt32)(offset >> 32);
PRUint64 rv;
PRUint32 newLocation, uhi;
PRUint64 newLocationL;
switch (whence)
{
case PR_SEEK_SET:
where = FILE_BEGIN;
break;
case PR_SEEK_CUR:
where = FILE_CURRENT;
break;
case PR_SEEK_END:
where = FILE_END;
break;
default:
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return -1;
}
if (isWSEB)
{
rc = myDosSetFilePtrL((HFILE)fd->secret->md.osfd, offset, where, (PLONGLONG)&newLocationL);
}
else
{
rc = DosSetFilePtr((HFILE)fd->secret->md.osfd, lo, where, (PULONG)&newLocation);
}
if (rc != NO_ERROR) {
_PR_MD_MAP_LSEEK_ERROR(rc);
return -1;
}
if (isWSEB)
{
return newLocationL;
}
uhi = (PRUint32)hi;
PR_ASSERT((PRInt32)uhi >= 0);
rv = uhi;
PR_ASSERT((PRInt64)rv >= 0);
rv = (rv << 32);
PR_ASSERT((PRInt64)rv >= 0);
rv += newLocation;
PR_ASSERT((PRInt64)rv >= 0);
return (PRInt64)rv;
#endif
}
PRInt32
_PR_MD_FSYNC(PRFileDesc *fd)
{
PRInt32 rc = DosResetBuffer((HFILE)fd->secret->md.osfd);
if (rc != NO_ERROR) {
if (rc != ERROR_ACCESS_DENIED) {
_PR_MD_MAP_FSYNC_ERROR(rc);
return -1;
}
}
return 0;
}
PRInt32
_MD_CloseFile(PRInt32 osfd)
{
PRInt32 rv;
rv = DosClose((HFILE)osfd);
if (rv != NO_ERROR)
_PR_MD_MAP_CLOSE_ERROR(rv);
return rv;
}
/* --- DIR IO ------------------------------------------------------------ */
#define GetFileFromDIR(d) (isWSEB?(d)->d_entry.large.achName:(d)->d_entry.small.achName)
#define GetFileAttr(d) (isWSEB?(d)->d_entry.large.attrFile:(d)->d_entry.small.attrFile)
void FlipSlashes(char *cp, int len)
{
while (--len >= 0) {
if (cp[0] == '/') {
cp[0] = PR_DIRECTORY_SEPARATOR;
}
cp++;
}
}
/*
**
** Local implementations of standard Unix RTL functions which are not provided
** by the VAC RTL.
**
*/
PRInt32
_PR_MD_CLOSE_DIR(_MDDir *d)
{
PRInt32 rc;
if ( d ) {
rc = DosFindClose(d->d_hdl);
if(rc == NO_ERROR){
d->magic = (PRUint32)-1;
return PR_SUCCESS;
} else {
_PR_MD_MAP_CLOSEDIR_ERROR(rc);
return PR_FAILURE;
}
}
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return PR_FAILURE;
}
PRStatus
_PR_MD_OPEN_DIR(_MDDir *d, const char *name)
{
char filename[ CCHMAXPATH ];
PRUword numEntries, rc;
numEntries = 1;
PR_snprintf(filename, CCHMAXPATH, "%s%s%s",
name, PR_DIRECTORY_SEPARATOR_STR, "*.*");
FlipSlashes( filename, strlen(filename) );
d->d_hdl = HDIR_CREATE;
if (isWSEB)
{
rc = DosFindFirst( filename,
&d->d_hdl,
FILE_DIRECTORY | FILE_HIDDEN,
&(d->d_entry.large),
sizeof(d->d_entry.large),
&numEntries,
FIL_STANDARDL);
}
else
{
rc = DosFindFirst( filename,
&d->d_hdl,
FILE_DIRECTORY | FILE_HIDDEN,
&(d->d_entry.small),
sizeof(d->d_entry.small),
&numEntries,
FIL_STANDARD);
}
if ( rc != NO_ERROR ) {
_PR_MD_MAP_OPENDIR_ERROR(rc);
return PR_FAILURE;
}
d->firstEntry = PR_TRUE;
d->magic = _MD_MAGIC_DIR;
return PR_SUCCESS;
}
char *
_PR_MD_READ_DIR(_MDDir *d, PRIntn flags)
{
PRUword numFiles = 1;
BOOL rv;
char *fileName;
USHORT fileAttr;
if ( d ) {
while (1) {
if (d->firstEntry) {
d->firstEntry = PR_FALSE;
rv = NO_ERROR;
} else {
rv = DosFindNext(d->d_hdl,
&(d->d_entry),
sizeof(d->d_entry),
&numFiles);
}
if (rv != NO_ERROR) {
break;
}
fileName = GetFileFromDIR(d);
fileAttr = GetFileAttr(d);
if ( (flags & PR_SKIP_DOT) &&
(fileName[0] == '.') && (fileName[1] == '\0'))
continue;
if ( (flags & PR_SKIP_DOT_DOT) &&
(fileName[0] == '.') && (fileName[1] == '.') &&
(fileName[2] == '\0'))
continue;
/*
* XXX
* Is this the correct definition of a hidden file on OS/2?
*/
if ((flags & PR_SKIP_NONE) && (fileAttr & FILE_HIDDEN))
return fileName;
else if ((flags & PR_SKIP_HIDDEN) && (fileAttr & FILE_HIDDEN))
continue;
return fileName;
}
PR_ASSERT(NO_ERROR != rv);
_PR_MD_MAP_READDIR_ERROR(rv);
return NULL;
}
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return NULL;
}
PRInt32
_PR_MD_DELETE(const char *name)
{
PRInt32 rc = DosDelete((char*)name);
if(rc == NO_ERROR) {
return 0;
} else {
_PR_MD_MAP_DELETE_ERROR(rc);
return -1;
}
}
PRInt32
_PR_MD_STAT(const char *fn, struct stat *info)
{
PRInt32 rv;
char filename[CCHMAXPATH];
PR_snprintf(filename, CCHMAXPATH, "%s", fn);
FlipSlashes(filename, strlen(filename));
rv = _stat((char*)filename, info);
if (-1 == rv) {
/*
* Check for MSVC runtime library _stat() bug.
* (It's really a bug in FindFirstFile().)
* If a pathname ends in a backslash or slash,
* e.g., c:\temp\ or c:/temp/, _stat() will fail.
* Note: a pathname ending in a slash (e.g., c:/temp/)
* can be handled by _stat() on NT but not on Win95.
*
* We remove the backslash or slash at the end and
* try again.
*
* Not sure if this happens on OS/2 or not,
* but it doesn't hurt to be careful.
*/
int len = strlen(fn);
if (len > 0 && len <= _MAX_PATH
&& (fn[len - 1] == '\\' || fn[len - 1] == '/')) {
char newfn[_MAX_PATH + 1];
strcpy(newfn, fn);
newfn[len - 1] = '\0';
rv = _stat(newfn, info);
}
}
if (-1 == rv) {
_PR_MD_MAP_STAT_ERROR(errno);
}
return rv;
}
PRInt32
_PR_MD_GETFILEINFO(const char *fn, PRFileInfo *info)
{
struct stat sb;
PRInt32 rv;
PRInt64 s, s2us;
if ( (rv = _PR_MD_STAT(fn, &sb)) == 0 ) {
if (info) {
if (S_IFREG & sb.st_mode)
info->type = PR_FILE_FILE ;
else if (S_IFDIR & sb.st_mode)
info->type = PR_FILE_DIRECTORY;
else
info->type = PR_FILE_OTHER;
info->size = sb.st_size;
LL_I2L(s2us, PR_USEC_PER_SEC);
LL_I2L(s, sb.st_mtime);
LL_MUL(s, s, s2us);
info->modifyTime = s;
LL_I2L(s, sb.st_ctime);
LL_MUL(s, s, s2us);
info->creationTime = s;
}
}
return rv;
}
PRInt32
_PR_MD_GETFILEINFO64(const char *fn, PRFileInfo64 *info)
{
PRFileInfo info32;
PRInt32 rv = _PR_MD_GETFILEINFO(fn, &info32);
if (rv != 0)
{
return rv;
}
info->type = info32.type;
LL_UI2L(info->size,info32.size);
info->modifyTime = info32.modifyTime;
info->creationTime = info32.creationTime;
if (isWSEB)
{
APIRET rc ;
FILESTATUS3L fstatus;
rc = DosQueryPathInfo(fn, FIL_STANDARDL, &fstatus, sizeof(fstatus));
if (NO_ERROR != rc)
{
_PR_MD_MAP_OPEN_ERROR(rc);
return -1;
}
if (! (fstatus.attrFile & FILE_DIRECTORY))
{
info->size = fstatus.cbFile;
}
}
return rv;
}
PRInt32
_PR_MD_GETOPENFILEINFO(const PRFileDesc *fd, PRFileInfo *info)
{
/* For once, the VAC compiler/library did a nice thing.
* The file handle used by the C runtime is the same one
* returned by the OS when you call DosOpen(). This means
* that you can take an OS HFILE and use it with C file
* functions. The only caveat is that you have to call
* _setmode() first to initialize some junk. This is
* immensely useful because I did not have a clue how to
* implement this function otherwise. The windows folks
* took the source from the Microsoft C library source, but
* IBM wasn't kind enough to ship the source with VAC.
* On second thought, the needed function could probably
* be gotten from the OS/2 GNU library source, but the
* point is now moot.
*/
struct stat hinfo;
PRInt64 s, s2us;
_setmode(fd->secret->md.osfd, O_BINARY);
if(fstat((int)fd->secret->md.osfd, &hinfo) != NO_ERROR) {
_PR_MD_MAP_FSTAT_ERROR(errno);
return -1;
}
if (hinfo.st_mode & S_IFDIR)
info->type = PR_FILE_DIRECTORY;
else
info->type = PR_FILE_FILE;
info->size = hinfo.st_size;
LL_I2L(s2us, PR_USEC_PER_SEC);
LL_I2L(s, hinfo.st_mtime);
LL_MUL(s, s, s2us);
info->modifyTime = s;
LL_I2L(s, hinfo.st_ctime);
LL_MUL(s, s, s2us);
info->creationTime = s;
return 0;
}
PRInt32
_PR_MD_GETOPENFILEINFO64(const PRFileDesc *fd, PRFileInfo64 *info)
{
PRFileInfo info32;
PRInt32 rv = _PR_MD_GETOPENFILEINFO(fd, &info32);
if (0 == rv)
{
info->type = info32.type;
LL_UI2L(info->size,info32.size);
info->modifyTime = info32.modifyTime;
info->creationTime = info32.creationTime;
}
if (isWSEB)
{
APIRET rc ;
FILESTATUS3L fstatus;
rc = DosQueryFileInfo(fd->secret->md.osfd, FIL_STANDARDL, &fstatus, sizeof(fstatus));
if (NO_ERROR != rc)
{
_PR_MD_MAP_OPEN_ERROR(rc);
return -1;
}
if (! (fstatus.attrFile & FILE_DIRECTORY))
{
info->size = fstatus.cbFile;
}
}
return rv;
}
PRInt32
_PR_MD_RENAME(const char *from, const char *to)
{
PRInt32 rc;
/* Does this work with dot-relative pathnames? */
if ( (rc = DosMove((char *)from, (char *)to)) == NO_ERROR) {
return 0;
} else {
_PR_MD_MAP_RENAME_ERROR(rc);
return -1;
}
}
PRInt32
_PR_MD_ACCESS(const char *name, PRAccessHow how)
{
PRInt32 rv;
switch (how) {
case PR_ACCESS_WRITE_OK:
rv = access(name, 02);
break;
case PR_ACCESS_READ_OK:
rv = access(name, 04);
break;
case PR_ACCESS_EXISTS:
return access(name, 00);
break;
default:
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return -1;
}
if (rv < 0)
_PR_MD_MAP_ACCESS_ERROR(errno);
return rv;
}
PRInt32
_PR_MD_MKDIR(const char *name, PRIntn mode)
{
PRInt32 rc;
/* XXXMB - how to translate the "mode"??? */
if ((rc = DosCreateDir((char *)name, NULL))== NO_ERROR) {
return 0;
} else {
_PR_MD_MAP_MKDIR_ERROR(rc);
return -1;
}
}
PRInt32
_PR_MD_RMDIR(const char *name)
{
PRInt32 rc;
if ( (rc = DosDeleteDir((char *)name)) == NO_ERROR) {
return 0;
} else {
_PR_MD_MAP_RMDIR_ERROR(rc);
return -1;
}
}
PRStatus
_PR_MD_LOCKFILE(PRInt32 f)
{
PRInt32 rv;
FILELOCK lock, unlock;
FILELOCKL lockL, unlockL;
lock.lOffset = 0;
lockL.lOffset = 0;
lock.lRange = 0xffffffff;
lockL.lRange = 0xffffffffffffffff;
unlock.lOffset = 0;
unlock.lRange = 0;
unlockL.lOffset = 0;
unlockL.lRange = 0;
/*
* loop trying to DosSetFileLocks(),
* pause for a few miliseconds when can't get the lock
* and try again
*/
for( rv = FALSE; rv == FALSE; /* do nothing */ )
{
if (isWSEB)
{
rv = myDosSetFileLocksL( (HFILE) f,
&unlockL, &lockL,
0, 0);
}
else
{
rv = DosSetFileLocks( (HFILE) f,
&unlock, &lock,
0, 0);
}
if ( rv != NO_ERROR )
{
DosSleep( 50 ); /* Sleep() a few milisecs and try again. */
}
} /* end for() */
return PR_SUCCESS;
} /* end _PR_MD_LOCKFILE() */
PRStatus
_PR_MD_TLOCKFILE(PRInt32 f)
{
return _PR_MD_LOCKFILE(f);
} /* end _PR_MD_TLOCKFILE() */
PRStatus
_PR_MD_UNLOCKFILE(PRInt32 f)
{
PRInt32 rv;
FILELOCK lock, unlock;
FILELOCKL lockL, unlockL;
lock.lOffset = 0;
lockL.lOffset = 0;
lock.lRange = 0;
lockL.lRange = 0;
unlock.lOffset = 0;
unlockL.lOffset = 0;
unlock.lRange = 0xffffffff;
unlockL.lRange = 0xffffffffffffffff;
if (isWSEB)
{
rv = myDosSetFileLocksL( (HFILE) f,
&unlockL, &lockL,
0, 0);
}
else
{
rv = DosSetFileLocks( (HFILE) f,
&unlock, &lock,
0, 0);
}
if ( rv != NO_ERROR )
{
return PR_SUCCESS;
}
else
{
return PR_FAILURE;
}
} /* end _PR_MD_UNLOCKFILE() */
PRStatus
_PR_MD_SET_FD_INHERITABLE(PRFileDesc *fd, PRBool inheritable)
{
APIRET rc = 0;
ULONG flags;
switch (fd->methods->file_type)
{
case PR_DESC_PIPE:
case PR_DESC_FILE:
rc = DosQueryFHState((HFILE)fd->secret->md.osfd, &flags);
if (rc != NO_ERROR) {
PR_SetError(PR_UNKNOWN_ERROR, _MD_ERRNO());
return PR_FAILURE;
}
if (inheritable)
flags &= ~OPEN_FLAGS_NOINHERIT;
else
flags |= OPEN_FLAGS_NOINHERIT;
/* Mask off flags DosSetFHState don't want. */
flags &= (OPEN_FLAGS_WRITE_THROUGH | OPEN_FLAGS_FAIL_ON_ERROR | OPEN_FLAGS_NO_CACHE | OPEN_FLAGS_NOINHERIT);
rc = DosSetFHState((HFILE)fd->secret->md.osfd, flags);
if (rc != NO_ERROR) {
PR_SetError(PR_UNKNOWN_ERROR, _MD_ERRNO());
return PR_FAILURE;
}
break;
case PR_DESC_LAYERED:
/* what to do here? */
PR_SetError(PR_UNKNOWN_ERROR, 87 /*ERROR_INVALID_PARAMETER*/);
return PR_FAILURE;
case PR_DESC_SOCKET_TCP:
case PR_DESC_SOCKET_UDP:
/* These are global on OS/2. */
break;
}
return PR_SUCCESS;
}
void
_PR_MD_INIT_FD_INHERITABLE(PRFileDesc *fd, PRBool imported)
{
/* XXX this function needs to be implemented */
fd->secret->inheritable = _PR_TRI_UNKNOWN;
}
void
_PR_MD_QUERY_FD_INHERITABLE(PRFileDesc *fd)
{
/* XXX this function needs to be reviewed */
ULONG flags;
PR_ASSERT(_PR_TRI_UNKNOWN == fd->secret->inheritable);
if (DosQueryFHState((HFILE)fd->secret->md.osfd, &flags) == 0) {
if (flags & OPEN_FLAGS_NOINHERIT) {
fd->secret->inheritable = _PR_TRI_FALSE;
} else {
fd->secret->inheritable = _PR_TRI_TRUE;
}
}
}
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