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Changeset 755

Timestamp:

07/08/08 18:16:14 (3 months ago)

Author:

mwhitworth

Message:

Add to journal data structures.

Files:

r750	r755
27	27	#include <preempt.h>
28	28	#include <task.h>
	29	#include <timer.h>
29	30	#include <typedefs.h>
30	31
31	32	/* In-memory structures. */
	33
	34	#define JTRANS_RUNNING 1
	35
	36	struct JournalHead
	37	{
	38	struct Buffer* buffer;
	39	};
	40
	41	struct JournalTrans
	42	{
	43	struct Journal* journal;
	44	int state, transId, outstandingBlocks;
	45	struct Timer* expireTimer;
	46	int updates, handleCount;
	47	};
32	48
33	49	/* JournalHandle denotes one atomic update to the filesystem. */
…	…
35	51	{
36	52	int refs, numBlocks;
37		};
38
39		struct JournalTrans
40		{
	53	struct JournalTrans* transaction;
41	54	};
42	55
…	…
46	59	int version;
47	60	DWORD maxLength, sectorSize, maxTransactionBuffers;
	61	DWORD transSequence;
48	62	struct JournalTrans* currTransaction;
49	63	};
…	…
74	88
75	89	/* Prototypes */
	90
	91	/* journal.c */
76	92	struct Journal* JournalCreate(struct VNode* vNode);
	93	struct JournalHandle* JournalStart(struct Journal* journal, int numBlocks);
	94	struct JournalHead* JournalAddHeader(struct Buffer* buffer);
	95
	96	/* transaction.c */
	97	int JournalGetWriteAccess(struct JournalHandle* handle, struct Buffer* buffer);
77	98
78	99	/* Defines */