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Changes so that the xShmOpen VFS method is no longer required. Its job can be done by the first call to xShmMap. Rename xShmClose to xShmUnmap.

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FossilOrigin-Name: f4780bde62c6c19146d2723c101540b8db898d38
This commit is contained in:
dan
2010-07-13 18:44:03 +00:00
parent 2103245e75
commit da9fe0c327
14 changed files with 241 additions and 286 deletions
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8
src/test_devsym.c
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@@ -50,7 +50,6 @@ static int devsymCheckReservedLock(sqlite3_file*, int *);
static int devsymFileControl(sqlite3_file*, int op, void *pArg);
static int devsymSectorSize(sqlite3_file*);
static int devsymDeviceCharacteristics(sqlite3_file*);
static int devsymShmOpen(sqlite3_file*);
static int devsymShmLock(sqlite3_file*,int,int,int);
static int devsymShmMap(sqlite3_file*,int,int,int, void volatile **);
static void devsymShmBarrier(sqlite3_file*);
@@ -116,9 +115,8 @@ static sqlite3_io_methods devsym_io_methods = {
devsymFileControl, /* xFileControl */
devsymSectorSize, /* xSectorSize */
devsymDeviceCharacteristics, /* xDeviceCharacteristics */
devsymShmOpen, /* xShmOpen */
devsymShmLock, /* xShmLock */
devsymShmMap, /* xShmMap */
devsymShmLock, /* xShmLock */
devsymShmBarrier, /* xShmBarrier */
devsymShmClose /* xShmClose */
};
@@ -237,10 +235,6 @@ static int devsymDeviceCharacteristics(sqlite3_file *pFile){
/*
** Shared-memory methods are all pass-thrus.
*/
static int devsymShmOpen(sqlite3_file *pFile){
devsym_file *p = (devsym_file *)pFile;
return sqlite3OsShmOpen(p->pReal);
}
static int devsymShmLock(sqlite3_file *pFile, int ofst, int n, int flags){
devsym_file *p = (devsym_file *)pFile;
return sqlite3OsShmLock(p->pReal, ofst, n, flags);