X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=io_uring_engine.h;h=bcb10581cd84c716c0d109d3f266446d141167e5;hb=4696bbc48870f367ca6b03f0a1c17b270d647ab3;hp=470bacf9f4c450cb49d9a25185e8100eb4b073b3;hpb=acce03bb32917e21f2d1d49c5a460d3cd2f72a11;p=plocate

diff --git a/io_uring_engine.h b/io_uring_engine.h
index 470bacf..bcb1058 100644
--- a/io_uring_engine.h
+++ b/io_uring_engine.h
@@ -7,6 +7,7 @@
 #include <string_view>
 #include <sys/socket.h>
 #include <sys/types.h>
+#include <linux/stat.h>
 
 struct io_uring_sqe;
 #ifndef WITHOUT_URING
@@ -18,11 +19,9 @@ public:
 	IOUringEngine(size_t slop_bytes);
 	void submit_read(int fd, size_t len, off_t offset, std::function<void(std::string_view)> cb);
 
-	// NOTE: We just do the stat() to get the data into the dentry cache for fast access;
-	// we don't care about the return value. Thus, the callback has no parameter lists.
-	// If we have no io_uring, the callback will be made immediately, with no stat() call
-	// being done.
-	void submit_stat(const char *path, std::function<void()> cb);
+	// NOTE: We just do the stat() to get the data into the dentry cache for fast access,
+	// or to check whether the file exists. Thus, the callback has only an OK/not OK boolean.
+	void submit_stat(const char *path, std::function<void(bool ok)> cb);
 	bool get_supports_stat() { return supports_stat; }
 
 	void finish();
@@ -31,7 +30,7 @@ public:
 private:
 #ifndef WITHOUT_URING
 	void submit_read_internal(io_uring_sqe *sqe, int fd, size_t len, off_t offset, std::function<void(std::string_view)> cb);
-	void submit_stat_internal(io_uring_sqe *sqe, char *path, std::function<void()> cb);
+	void submit_stat_internal(io_uring_sqe *sqe, char *path, std::function<void(bool)> cb);
 
 	io_uring ring;
 #endif
@@ -49,7 +48,7 @@ private:
 
 	struct QueuedStat {
 		char *pathname;  // Owned by us.
-		std::function<void()> cb;
+		std::function<void(bool)> cb;
 	};
 	std::queue<QueuedStat> queued_stats;
 
@@ -60,7 +59,7 @@ private:
 		Op op;
 
 		std::function<void(std::string_view)> read_cb;
-		std::function<void()> stat_cb;
+		std::function<void(bool)> stat_cb;
 
 		union {
 			struct {