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Make createBufferTmpDir() threadsafe

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This must not use thread local storage, since the generated directories are
all in the same parent directory which is unique per running LyX instance.
This commit is contained in:
Georg Baum 2014-07-05 12:31:12 +02:00
parent 0de4bc224a
commit 4bfca60359
1 changed files with 11 additions and 3 deletions
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12
src/Buffer.cpp
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@ -97,6 +97,7 @@
#include "support/gzstream.h"
#include "support/lstrings.h"
#include "support/lyxalgo.h"
#include "support/mutex.h"
#include "support/os.h"
#include "support/Package.h"
#include "support/PathChanger.h"
@ -353,13 +354,20 @@ private:
/// Creates the per buffer temporary directory
static FileName createBufferTmpDir()
{
// FIXME THREAD
// FIXME This would be the ideal application for a TempDir class (like
// TempFile but for directories)
string counter;
{
static int count;
static Mutex mutex;
Mutex::Locker locker(&mutex);
counter = convert<string>(count++);
}
// We are in our own directory. Why bother to mangle name?
// In fact I wrote this code to circumvent a problematic behaviour
// (bug?) of EMX mkstemp().
FileName tmpfl(package().temp_dir().absFileName() + "/lyx_tmpbuf" +
convert<string>(count++));
counter);
if (!tmpfl.createDirectory(0777)) {
throw ExceptionMessage(WarningException, _("Disk Error: "), bformat(