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-rw-r--r--nsprpub/pr/src/md/os2/os2io.c968
1 files changed, 968 insertions, 0 deletions
diff --git a/nsprpub/pr/src/md/os2/os2io.c b/nsprpub/pr/src/md/os2/os2io.c
new file mode 100644
index 0000000000..639a0d3880
--- /dev/null
+++ b/nsprpub/pr/src/md/os2/os2io.c
@@ -0,0 +1,968 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* OS2 IO module
+ *
+ * Assumes synchronous I/O.
+ *
+ */
+
+#include "primpl.h"
+#include "prio.h"
+#include <ctype.h>
+#include <string.h>
+#include <limits.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <io.h>
+
+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;
+
+#ifdef MOZ_OS2_HIGH_MEMORY
+ /*
+ * All the pointer arguments (&file, &actionTaken and name) have to be in
+ * low memory for DosOpen to use them.
+ * The following moves name to low memory.
+ */
+ if ((ULONG)name >= 0x20000000)
+ {
+ size_t len = strlen(name) + 1;
+ char *copy = (char *)alloca(len);
+ memcpy(copy, name, len);
+ name = copy;
+ }
+#endif
+
+ 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;
+ }
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-02 14:16:41 +0000