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1#ifndef FSMONITOR_H
2#define FSMONITOR_H
3
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4#include "cache.h"
5#include "dir.h"
6
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7extern struct trace_key trace_fsmonitor;
8
9/*
10 * Read the fsmonitor index extension and (if configured) restore the
11 * CE_FSMONITOR_VALID state.
12 */
55454427 13int read_fsmonitor_extension(struct index_state *istate, const void *data, unsigned long sz);
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14
15/*
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16 * Fill the fsmonitor_dirty ewah bits with their state from the index,
17 * before it is split during writing.
18 */
55454427 19void fill_fsmonitor_bitmap(struct index_state *istate);
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20
21/*
22 * Write the CE_FSMONITOR_VALID state into the fsmonitor index
23 * extension. Reads from the fsmonitor_dirty ewah in the index.
883e248b 24 */
55454427 25void write_fsmonitor_extension(struct strbuf *sb, struct index_state *istate);
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26
27/*
28 * Add/remove the fsmonitor index extension
29 */
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30void add_fsmonitor(struct index_state *istate);
31void remove_fsmonitor(struct index_state *istate);
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32
33/*
34 * Add/remove the fsmonitor index extension as necessary based on the current
35 * core.fsmonitor setting.
36 */
55454427 37void tweak_fsmonitor(struct index_state *istate);
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38
39/*
40 * Run the configured fsmonitor integration script and clear the
41 * CE_FSMONITOR_VALID bit for any files returned as dirty. Also invalidate
42 * any corresponding untracked cache directory structures. Optimized to only
43 * run the first time it is called.
44 */
55454427 45void refresh_fsmonitor(struct index_state *istate);
883e248b 46
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47/*
48 * Does the received result contain the "trivial" response?
49 */
50int fsmonitor_is_trivial_response(const struct strbuf *query_result);
51
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52/*
53 * Check if refresh_fsmonitor has been called at least once.
54 * refresh_fsmonitor is idempotent. Returns true if fsmonitor is
55 * not enabled (since the state will be "fresh" w/ CE_FSMONITOR_VALID unset)
56 * This version is useful for assertions
57 */
58static inline int is_fsmonitor_refreshed(const struct index_state *istate)
59{
60 return !core_fsmonitor || istate->fsmonitor_has_run_once;
61}
62
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63/*
64 * Set the given cache entries CE_FSMONITOR_VALID bit. This should be
65 * called any time the cache entry has been updated to reflect the
66 * current state of the file on disk.
67 */
b5a81697 68static inline void mark_fsmonitor_valid(struct index_state *istate, struct cache_entry *ce)
883e248b 69{
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70 if (core_fsmonitor && !(ce->ce_flags & CE_FSMONITOR_VALID)) {
71 istate->cache_changed = 1;
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72 ce->ce_flags |= CE_FSMONITOR_VALID;
73 trace_printf_key(&trace_fsmonitor, "mark_fsmonitor_clean '%s'", ce->name);
74 }
75}
76
77/*
78 * Clear the given cache entry's CE_FSMONITOR_VALID bit and invalidate
79 * any corresponding untracked cache directory structures. This should
80 * be called any time git creates or modifies a file that should
81 * trigger an lstat() or invalidate the untracked cache for the
82 * corresponding directory
83 */
84static inline void mark_fsmonitor_invalid(struct index_state *istate, struct cache_entry *ce)
85{
86 if (core_fsmonitor) {
87 ce->ce_flags &= ~CE_FSMONITOR_VALID;
0cacebf0 88 untracked_cache_invalidate_path(istate, ce->name, 1);
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89 trace_printf_key(&trace_fsmonitor, "mark_fsmonitor_invalid '%s'", ce->name);
90 }
91}
92
93#endif