#ifndef FSMONITOR_H

#define FSMONITOR_H

#include "cache.h"

#include "dir.h"

extern struct trace_key trace_fsmonitor;

/*

 * Read the fsmonitor index extension and (if configured) restore the

 * CE_FSMONITOR_VALID state.

 */

int read_fsmonitor_extension(struct index_state *istate, const void *data, unsigned long sz);

/*

 * Fill the fsmonitor_dirty ewah bits with their state from the index,

 * before it is split during writing.

 */

void fill_fsmonitor_bitmap(struct index_state *istate);

/*

 * Write the CE_FSMONITOR_VALID state into the fsmonitor index

 * extension.  Reads from the fsmonitor_dirty ewah in the index.

 */

void write_fsmonitor_extension(struct strbuf *sb, struct index_state *istate);

/*

 * Add/remove the fsmonitor index extension

 */

void add_fsmonitor(struct index_state *istate);

void remove_fsmonitor(struct index_state *istate);

/*

 * Add/remove the fsmonitor index extension as necessary based on the current

 * core.fsmonitor setting.

 */

void tweak_fsmonitor(struct index_state *istate);

/*

 * Run the configured fsmonitor integration script and clear the

 * CE_FSMONITOR_VALID bit for any files returned as dirty.  Also invalidate

 * any corresponding untracked cache directory structures. Optimized to only

 * run the first time it is called.

 */

void refresh_fsmonitor(struct index_state *istate);

/*

 * Set the given cache entries CE_FSMONITOR_VALID bit. This should be

 * called any time the cache entry has been updated to reflect the

 * current state of the file on disk.

 */

static inline void mark_fsmonitor_valid(struct index_state *istate, struct cache_entry *ce)

{

	if (core_fsmonitor && !(ce->ce_flags & CE_FSMONITOR_VALID)) {

		istate->cache_changed = 1;

		ce->ce_flags |= CE_FSMONITOR_VALID;

		trace_printf_key(&trace_fsmonitor, "mark_fsmonitor_clean '%s'", ce->name);

	}

}

/*

 * Clear the given cache entry's CE_FSMONITOR_VALID bit and invalidate

 * any corresponding untracked cache directory structures. This should

 * be called any time git creates or modifies a file that should

 * trigger an lstat() or invalidate the untracked cache for the

 * corresponding directory

 */

static inline void mark_fsmonitor_invalid(struct index_state *istate, struct cache_entry *ce)

{

	if (core_fsmonitor) {

		ce->ce_flags &= ~CE_FSMONITOR_VALID;

		untracked_cache_invalidate_path(istate, ce->name, 1);

		trace_printf_key(&trace_fsmonitor, "mark_fsmonitor_invalid '%s'", ce->name);

	}

}

#endif