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Update open FileDescs at deregistration resulting from delete, rename or register.

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This commit is contained in:
David Brown 2016-11-30 18:13:32 +00:00
parent 67e4848eb7
commit b16e82f866
6 changed files with 202 additions and 10 deletions
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32
bootstrap/unix-88/Files.c
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@ -68,6 +68,7 @@ export void Files_Close (Files_File f);
static void Files_CloseOSFile (Files_File f);
static void Files_Create (Files_File f);
export void Files_Delete (CHAR *name, ADDRESS name__len, INT16 *res);
static void Files_Deregister (CHAR *name, ADDRESS name__len);
static void Files_Err (CHAR *s, ADDRESS s__len, Files_File f, INT16 errcode);
static void Files_Finalize (SYSTEM_PTR o);
static void Files_FlipBytes (SYSTEM_BYTE *src, ADDRESS src__len, SYSTEM_BYTE *dest, ADDRESS dest__len);
@ -222,9 +223,35 @@ static void Files_GetTempName (CHAR *finalName, ADDRESS finalName__len, CHAR *na
__DEL(finalName);
}
static void Files_Create (Files_File f)
static void Files_Deregister (CHAR *name, ADDRESS name__len)
{
Platform_FileIdentity identity;
Files_File osfile = NIL;
INT16 error;
__DUP(name, name__len, CHAR);
if (Platform_IdentifyByName(name, name__len, &identity, Platform_FileIdentity__typ) == 0) {
osfile = (Files_File)Files_files;
while ((osfile != NIL && !Platform_SameFile(osfile->identity, identity))) {
osfile = (Files_File)osfile->next;
}
if (osfile != NIL) {
__ASSERT(!osfile->tempFile, 0);
__ASSERT(osfile->fd >= 0, 0);
__COPY(osfile->workName, osfile->registerName, 101);
Files_GetTempName(osfile->registerName, 101, (void*)osfile->workName, 101);
osfile->tempFile = 1;
osfile->state = 0;
error = Platform_Rename((void*)osfile->registerName, 101, (void*)osfile->workName, 101);
if (error != 0) {
Files_Err((CHAR*)"Couldn't rename previous version of file being registered", 58, osfile, error);
}
}
}
__DEL(name);
}
static void Files_Create (Files_File f)
{
BOOLEAN done;
INT16 error;
CHAR err[32];
@ -234,6 +261,7 @@ static void Files_Create (Files_File f)
f->tempFile = 1;
} else {
__ASSERT(f->state == 2, 0);
Files_Deregister(f->registerName, 101);
__COPY(f->registerName, f->workName, 101);
f->registerName[0] = 0x00;
f->tempFile = 0;
@ -714,6 +742,7 @@ void Files_WriteBytes (Files_Rider *r, ADDRESS *r__typ, SYSTEM_BYTE *x, ADDRESS
void Files_Delete (CHAR *name, ADDRESS name__len, INT16 *res)
{
__DUP(name, name__len, CHAR);
Files_Deregister(name, name__len);
*res = Platform_Unlink((void*)name, name__len);
__DEL(name);
}
@ -789,6 +818,7 @@ void Files_Register (Files_File f)
}
Files_Close(f);
if (f->registerName[0] != 0x00) {
Files_Deregister(f->registerName, 101);
Files_Rename(f->workName, 101, f->registerName, 101, &errcode);
if (errcode != 0) {
Files_Err((CHAR*)"Couldn't rename temp name as register name", 43, f, errcode);