| 1 | #ifndef FSMONITOR_H |
| 2 | #define FSMONITOR_H |
| 3 | |
| 4 | #include "fsmonitor-ll.h" |
| 5 | #include "dir.h" |
| 6 | #include "fsmonitor-settings.h" |
| 7 | #include "object.h" |
| 8 | #include "read-cache-ll.h" |
| 9 | #include "trace.h" |
| 10 | |
| 11 | /* |
| 12 | * Check if refresh_fsmonitor has been called at least once. |
| 13 | * refresh_fsmonitor is idempotent. Returns true if fsmonitor is |
| 14 | * not enabled (since the state will be "fresh" w/ CE_FSMONITOR_VALID unset) |
| 15 | * This version is useful for assertions |
| 16 | */ |
| 17 | static inline int is_fsmonitor_refreshed(const struct index_state *istate) |
| 18 | { |
| 19 | enum fsmonitor_mode fsm_mode = fsm_settings__get_mode(istate->repo); |
| 20 | |
| 21 | return fsm_mode <= FSMONITOR_MODE_DISABLED || |
| 22 | istate->fsmonitor_has_run_once; |
| 23 | } |
| 24 | |
| 25 | /* |
| 26 | * Set the given cache entries CE_FSMONITOR_VALID bit. This should be |
| 27 | * called any time the cache entry has been updated to reflect the |
| 28 | * current state of the file on disk. |
| 29 | * |
| 30 | * However, never mark submodules as valid. When commands like "git |
| 31 | * status" run they might need to recurse into the submodule (using a |
| 32 | * child process) to get a summary of the submodule state. We don't |
| 33 | * have (and don't want to create) the facility to translate every |
| 34 | * FS event that we receive and that happens to be deep inside of a |
| 35 | * submodule back to the submodule root, so we cannot correctly keep |
| 36 | * track of this bit on the gitlink directory. Therefore, we never |
| 37 | * set it on submodules. |
| 38 | */ |
| 39 | static inline void mark_fsmonitor_valid(struct index_state *istate, struct cache_entry *ce) |
| 40 | { |
| 41 | enum fsmonitor_mode fsm_mode = fsm_settings__get_mode(istate->repo); |
| 42 | |
| 43 | if (fsm_mode > FSMONITOR_MODE_DISABLED && |
| 44 | !(ce->ce_flags & CE_FSMONITOR_VALID)) { |
| 45 | if (S_ISGITLINK(ce->ce_mode)) |
| 46 | return; |
| 47 | istate->cache_changed |= FSMONITOR_CHANGED; |
| 48 | ce->ce_flags |= CE_FSMONITOR_VALID; |
| 49 | trace_printf_key(&trace_fsmonitor, "mark_fsmonitor_clean '%s'", ce->name); |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | /* |
| 54 | * Clear the given cache entry's CE_FSMONITOR_VALID bit and invalidate |
| 55 | * any corresponding untracked cache directory structures. This should |
| 56 | * be called any time git creates or modifies a file that should |
| 57 | * trigger an lstat() or invalidate the untracked cache for the |
| 58 | * corresponding directory |
| 59 | */ |
| 60 | static inline void mark_fsmonitor_invalid(struct index_state *istate, struct cache_entry *ce) |
| 61 | { |
| 62 | enum fsmonitor_mode fsm_mode = fsm_settings__get_mode(istate->repo); |
| 63 | |
| 64 | if (fsm_mode > FSMONITOR_MODE_DISABLED) { |
| 65 | ce->ce_flags &= ~CE_FSMONITOR_VALID; |
| 66 | untracked_cache_invalidate_path(istate, ce->name, 1); |
| 67 | trace_printf_key(&trace_fsmonitor, "mark_fsmonitor_invalid '%s'", ce->name); |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | #endif |