Cross Reference: /ast/src/lib/libast/vmalloc/vmmopen.c

Lines Matching defs:mmvm
71 #define MMDATA(mmvm)	((Vmuchar_t*)(mmvm)->base + MMHEAD(mmvm->file))
72 #define MMSIZE(mmvm)	((mmvm)->size - MMHEAD(mmvm->file))
101 	Mmvm_t*		mmvm;	/* shared memory data	*/
119 	sprintf(mesg, "Memory:  %#010lx\n", mmdc->mmvm); write(fd, mesg, strlen(mesg));
124 	sprintf(mesg, "Magic:   %10d\n", mmdc->mmvm->magic); write(fd, mesg, strlen(mesg));
125 	sprintf(mesg, "Base:    %#010lx\n", mmdc->mmvm->base); write(fd, mesg, strlen(mesg));
126 	sprintf(mesg, "Size:    %10d\n", mmdc->mmvm->size); write(fd, mesg, strlen(mesg));
127 	sprintf(mesg, "Busy:    %10d\n", mmdc->mmvm->busy); write(fd, mesg, strlen(mesg));
133 static Mmvm_t* mmfix(Mmvm_t* mmvm, Mmdisc_t* mmdc, int fd)
135 	Void_t	*base = mmvm->base;
136 	ssize_t	size = mmvm->size;
138 	if(base != (Void_t*)mmvm) /* mmvm is not right yet */
141 		{	munmap((Void_t*)mmvm, size); 
142 			mmvm = (Mmvm_t*)mmap(base, size, (PROT_READ|PROT_WRITE),
146 		{	shmdt((Void_t*)mmvm);
147 			mmvm = (Mmvm_t*)shmat(mmdc->shmid, base, 0);
149 		if(!mmvm || mmvm == (Mmvm_t*)(-1) )
150 			mmvm = NIL(Mmvm_t*);
153 	return mmvm;
164 	Mmvm_t		*mmvm = NIL(Mmvm_t*);
167 	if(mmdc->mmvm) /* already done this */
190 		mmvm = (Mmvm_t*)mmap(NIL(Void_t*), size, (PROT_READ|PROT_WRITE),
201 		mmvm = (Mmvm_t*)shmat(mmdc->shmid, NIL(Void_t*), 0);
204 	if(!mmvm || mmvm == (Mmvm_t*)(-1) ) /* initial mapping failed */
208 	if(asocasint(&mmvm->magic, 0, MM_LETMEDOIT) == 0 ) /* lucky winner: us! */
210 			base = (Void_t*)mmvm;
212 		mmvm->base = base;
213 		mmvm->size = size;
214 		mmvm->busy = 0;
215 		mmvm->proj = mmdc->proj;
216 		strcpy(mmvm->file, mmdc->file);
218 			msync((Void_t*)mmvm, MMHEAD(mmvm->file), MS_SYNC);
220 		if(mmvm->base != (Void_t*)mmvm) /* not yet at the right address */
221 			if(!(mmvm = mmfix(mmvm, mmdc, fd)) )
227 		if(mmvm->magic != MM_LETMEDOIT && mmvm->magic != MM_MAGIC)
231 		{	if(asocasint(&mmvm->magic, MM_MAGIC, MM_MAGIC) == MM_MAGIC )
238 		if(mmvm->proj != mmdc->proj || strcmp(mmvm->file, mmdc->file) != 0 )
241 		if(mmvm->base != (Void_t*)mmvm) /* not yet at the right address */
242 			if(!(mmvm = mmfix(mmvm, mmdc, fd)) )
250 	{	/**/ASSERT(mmvm && mmvm != (Mmvm_t*)(-1));
251 		mmdc->mmvm = mmvm;
253 	else if(mmvm && mmvm != (Mmvm_t*)(-1)) /* error, remove map */
255 			(void)munmap((Void_t*)mmvm, size);
256 		else	(void)shmdt((Void_t*)mmvm);
269 	Mmvm_t		*mmvm;
272 	if(!(mmvm = mmdc->mmvm) )
276 	{	(void)msync(mmvm->base, mmvm->size, MS_ASYNC);
278 		{	if(mmvm->base )
279 				(void)munmap(mmvm->base, mmvm->size);
286 		{	if(mmvm->base )
287 				(void)shmdt(mmvm->base);
295 	mmdc->mmvm = NIL(Mmvm_t*);
311 	Mmvm_t		*mmvm;
314 	if(!(mmvm = mmdc->mmvm) ) /* bad data */
319 	{	if(caddr == MMDATA(mmvm) && nsize <= MMSIZE(mmvm) )
320 		{	mmvm->busy = nsize;
321 			return MMDATA(mmvm);
326 	{	if(mmvm->busy == 0 )
327 		{	mmvm->busy = nsize;
328 			return MMDATA(mmvm);
354 				/**/ASSERT(mmdc->mmvm->magic == MM_LETMEDOIT);
359 				/**/ASSERT(mmdc->mmvm->magic == MM_MAGIC);
360 				*((Void_t**)data) = MMDATA(mmdc->mmvm);
368 		{	/**/ASSERT(mmdc->mmvm->magic == MM_LETMEDOIT);
369 			asocasint(&mmdc->mmvm->magic, MM_LETMEDOIT, MM_MAGIC);
372 				msync((Void_t*)mmdc->mmvm, MMHEAD(mmdc->file), MS_SYNC);
373 		} /**/ASSERT(mmdc->mmvm->magic == MM_MAGIC);
410 	mmdc->mmvm = NIL(Mmvm_t*);
424 	{	/**/ASSERT(mmdc->mmvm && mmdc->mmvm->magic == MM_MAGIC);
442 	Mmvm_t		*mmvm = mmdc->mmvm;
451 	for(u = mmvm->user; u; u = u->next)
459 			u->next = mmvm->user;
460 			mmvm->user = u;