Save XML files into a memory buffer rather than directly into a file

This introduces a "struct membuffer" abstraction that you can write
things into, and makes the XML saving code write to the memory buffer
rather than a file.

The UDDF export already really wanted this: it used to write to a file,
only to then read that file back into memory, delete the file, and then
*rewrite* the file after doing the magic xslt transform.

But the longer-term reason for this is that I want to try to write other
formats, and I want to try to share most helpers.  And those other
formats will need this memory buffer model.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/qt-gui.cpp b/qt-gui.cpp
index 57b82b940..314e41906 100644
--- a/qt-gui.cpp
+++ b/qt-gui.cpp
@@ -452,7 +452,7 @@ bool compareDC(const DiveComputerNode &a, const DiveComputerNode &b)
 	return a.deviceId < b.deviceId;
 }
 
-void call_for_each_dc(FILE *f, void (*callback)(FILE *, const char *, uint32_t,
+void call_for_each_dc(void *f, void (*callback)(void *, const char *, uint32_t,
 						const char *, const char *, const char *))
 {
 	QList<DiveComputerNode> values = dcList.dcMap.values();