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Initial code for incremental checkpoint in WAL mode. This check-in compiles

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on unix and runs as long as you do not engage WAL mode.  WAL mode crashes and
burns.  Consider this check-in a baseline implementation for getting the new
capability up and running.

FossilOrigin-Name: ef3ba7a17ff90674d702e5694b9e792851ab6998
This commit is contained in:
drh
2010-05-30 19:55:15 +00:00
parent a7a0c615d7
commit 73b64e4d2e
13 changed files with 811 additions and 617 deletions
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6
src/test_osinst.c
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@@ -155,7 +155,7 @@ static int vfslogShmOpen(sqlite3_file *pFile);
static int vfslogShmSize(sqlite3_file *pFile, int reqSize, int *pNewSize);
static int vfslogShmGet(sqlite3_file *pFile, int,int*,volatile void **);
static int vfslogShmRelease(sqlite3_file *pFile);
static int vfslogShmLock(sqlite3_file *pFile, int desiredLock, int *gotLock);
static int vfslogShmLock(sqlite3_file *pFile, int ofst, int n, int flags);
static void vfslogShmBarrier(sqlite3_file*);
static int vfslogShmClose(sqlite3_file *pFile, int deleteFlag);
@@ -460,12 +460,12 @@ static int vfslogShmRelease(sqlite3_file *pFile){
vfslog_call(p->pVfslog, OS_SHMRELEASE, p->iFileId, t, rc, 0, 0);
return rc;
}
static int vfslogShmLock(sqlite3_file *pFile, int desiredLock, int *gotLock){
static int vfslogShmLock(sqlite3_file *pFile, int ofst, int n, int flags){
int rc;
sqlite3_uint64 t;
VfslogFile *p = (VfslogFile *)pFile;
t = vfslog_time();
rc = p->pReal->pMethods->xShmLock(p->pReal, desiredLock, gotLock);
rc = p->pReal->pMethods->xShmLock(p->pReal, ofst, n, flags);
t = vfslog_time() - t;
vfslog_call(p->pVfslog, OS_SHMLOCK, p->iFileId, t, rc, 0, 0);
return rc;