Show what pathname a fd was opened from in the SAL_INFO("sal.file") calls

The pathname is logged in abbreviated form.

This, like the two preceding commits, is not claimed to be perfect,
MT-safe, etc. It is for debugging output, for SAL_LOG=+INFO.sal.file.
If you don't like it, don't use it. Or improve it. Or revert it, I
promise not to bother again. Just don't start bike-shedding.

Change-Id: Ie8fcea5f5f2373671eebf9ee54d32143e7ed68e9
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/91679
Tested-by: Jenkins
Reviewed-by: Tor Lillqvist <tml@collabora.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/sal/osl/unx/uunxapi.hxx b/sal/osl/unx/uunxapi.hxx
index 867443b45746..1c7a022a7c9a 100644
--- a/sal/osl/unx/uunxapi.hxx
+++ b/sal/osl/unx/uunxapi.hxx
@@ -28,6 +28,7 @@
 #include <rtl/ustring.h>
 
 #include <rtl/ustring.hxx>
+#include <sal/log.hxx>
 
 int stat_c(const char *cpPath, struct stat* buf);
 
@@ -74,6 +75,7 @@ namespace osl
 
     int mkdir(const OString& aPath, mode_t aMode);
 
+    // The following are for debugging output only, don't bother getting upset about performance etc.
     inline OString openFlagsToString(int flags)
     {
         OString result;
@@ -194,6 +196,34 @@ namespace osl
         return result;
     }
 
+#if defined SAL_LOG_INFO
+    void registerPathForFd(int fd, const char *path);
+
+    void unregisterPathForFd(int fd);
+
+    OUString fdAndPath(int fd);
+
+    void dumpFdToPathMap();
+#else
+    inline void registerPathForFd(int, const char *)
+    {
+    }
+
+    inline void unregisterPathForFd(int)
+    {
+    }
+
+    inline OUString fdAndPath(int)
+    {
+        return "";
+    }
+
+    inline void dumpFdToPathMap()
+    {
+    }
+#endif
+
+
 } // end namespace osl
 
 #endif // INCLUDED_SAL_OSL_UNX_UUNXAPI_HXX