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Optimize VFS find.

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Nuno Cruces
2023-12-05 14:10:57 +00:00
parent 987f0f13a2
commit 06d2ff6752
4 changed files with 25 additions and 27 deletions
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44
sqlite3/vfs.c
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@@ -87,11 +87,11 @@ int localtime_s(struct tm *const pTm, time_t const *const pTime) {
}
sqlite3_vfs *sqlite3_vfs_find(const char *zVfsName) {
if (zVfsName) {
if (zVfsName && go_vfs_find(zVfsName)) {
static sqlite3_vfs *go_vfs_list;
for (sqlite3_vfs *it = go_vfs_list; it; it = it->pNext) {
if (!strcmp(zVfsName, it->zName) && go_vfs_find(it->zName)) {
if (!strcmp(zVfsName, it->zName)) {
return it;
}
}
@@ -106,29 +106,27 @@ sqlite3_vfs *sqlite3_vfs_find(const char *zVfsName) {
}
}
if (go_vfs_find(zVfsName)) {
sqlite3_vfs *head = go_vfs_list;
go_vfs_list = malloc(sizeof(sqlite3_vfs) + strlen(zVfsName) + 1);
char *name = (char *)(go_vfs_list + 1);
strcpy(name, zVfsName);
*go_vfs_list = (sqlite3_vfs){
.iVersion = 2,
.szOsFile = sizeof(struct go_file),
.mxPathname = 512,
.zName = name,
.pNext = head,
sqlite3_vfs *head = go_vfs_list;
go_vfs_list = malloc(sizeof(sqlite3_vfs) + strlen(zVfsName) + 1);
char *name = (char *)(go_vfs_list + 1);
strcpy(name, zVfsName);
*go_vfs_list = (sqlite3_vfs){
.iVersion = 2,
.szOsFile = sizeof(struct go_file),
.mxPathname = 512,
.zName = name,
.pNext = head,
.xOpen = go_open_wrapper,
.xDelete = go_delete,
.xAccess = go_access,
.xFullPathname = go_full_pathname,
.xOpen = go_open_wrapper,
.xDelete = go_delete,
.xAccess = go_access,
.xFullPathname = go_full_pathname,
.xRandomness = go_randomness,
.xSleep = go_sleep,
.xCurrentTimeInt64 = go_current_time_64,
};
return go_vfs_list;
}
.xRandomness = go_randomness,
.xSleep = go_sleep,
.xCurrentTimeInt64 = go_current_time_64,
};
return go_vfs_list;
}
return sqlite3_vfs_find_orig(zVfsName);
}