29edcad310
. make vm be able to use malloc() by overriding brk() and minix_mmap() functions . phys regions can then be malloc()ed and free()d instead of being in an avl tree, which is slightly faster . 'offset' field in phys_region can go too (offset is implied by position in array) but leads to bigger code changes
52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
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#ifndef _VMPROC_H
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#define _VMPROC_H 1
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#include <minix/bitmap.h>
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#include <machine/archtypes.h>
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#include "pt.h"
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#include "vm.h"
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#include "regionavl.h"
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struct vmproc;
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typedef void (*callback_t)(struct vmproc *who, message *m);
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struct vmproc {
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int vm_flags;
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endpoint_t vm_endpoint;
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pt_t vm_pt; /* page table data */
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struct boot_image *vm_boot; /* if boot time process */
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/* Regions in virtual address space. */
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region_avl vm_regions_avl;
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vir_bytes vm_region_top; /* highest vaddr last inserted */
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bitchunk_t vm_call_mask[VM_CALL_MASK_SIZE];
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/* State for requests pending to be done to vfs on behalf of
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* this process.
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*/
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callback_t vm_callback; /* function to call on vfs reply */
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int vm_callback_type; /* expected message type */
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int vm_slot; /* process table slot */
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int vm_yielded; /* yielded regions */
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union {
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struct {
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cp_grant_id_t gid;
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} open; /* VM_VFS_OPEN */
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} vm_state; /* Callback state. */
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#if VMSTATS
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int vm_bytecopies;
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#endif
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};
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/* Bits for vm_flags */
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#define VMF_INUSE 0x001 /* slot contains a process */
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#define VMF_EXITING 0x002 /* PM is cleaning up this process */
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#define VMF_WATCHEXIT 0x008 /* Store in queryexit table */
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#endif
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