Commit 64fe8c62f90c6d887b2787f47ff815c2485e04d2

Vicent Marti 2011-06-07T03:22:32

threads: Fix TLS declarations Cleanup the thread-utils file. Do not define TLS if libgit2 is not threadsafe.

diff --git a/include/git2/thread-utils.h b/include/git2/thread-utils.h
index e26876b..62e6199 100644
--- a/include/git2/thread-utils.h
+++ b/include/git2/thread-utils.h
@@ -31,41 +31,48 @@
  *          http://predef.sourceforge.net/precomp.html
  */
 
-#define GIT_HAS_TLS 1
+#ifdef GIT_THREADS
+#  define GIT_HAS_TLS 1
 
-#if defined(__APPLE__) && defined(__MACH__)
-# undef GIT_TLS
-# define GIT_TLS
+/* No TLS in Cygwin */
+#  if defined(__CHECKER__) || defined(__CYGWIN__)
+#    undef GIT_HAS_TLS
+#    define GIT_TLS
 
-#elif defined(__GNUC__) || \
-      defined(__SUNPRO_C) || \
-      defined(__SUNPRO_CC) || \
-      defined(__xlc__) || \
-      defined(__xlC__)
-# define GIT_TLS __thread
+/* No TLS in Mach binaries for Mac OS X */
+#  elif defined(__APPLE__) && defined(__MACH__)
+#    undef GIT_TLS
+#    define GIT_TLS
 
-#elif defined(__INTEL_COMPILER)
-# if defined(_WIN32) || defined(_WIN32_CE)
-#  define GIT_TLS __declspec(thread)
-# else
-#  define GIT_TLS __thread
-# endif
+/* Normal TLS for GCC */
+#  elif defined(__GNUC__) || \
+        defined(__SUNPRO_C) || \
+        defined(__SUNPRO_CC) || \
+        defined(__xlc__) || \
+        defined(__xlC__)
+#    define GIT_TLS __thread
 
-#elif defined(_WIN32) || \
-      defined(_WIN32_CE) || \
-      defined(__BORLANDC__)
-# define GIT_TLS __declspec(thread)
+/* ICC may run on Windows or Linux */
+#  elif defined(__INTEL_COMPILER)
+#    if defined(_WIN32) || defined(_WIN32_CE)
+#      define GIT_TLS __declspec(thread)
+#    else
+#      define GIT_TLS __thread
+#    endif
 
-#else
-# undef GIT_HAS_TLS
-# define GIT_TLS /* nothing: tls vars are thread-global */
-#endif
+/* Declspec for MSVC in Win32 */
+#  elif defined(_WIN32) || \
+        defined(_WIN32_CE) || \
+        defined(__BORLANDC__)
+#    define GIT_TLS __declspec(thread)
 
-/* sparse and cygwin don't grok thread-local variables */
-#if defined(__CHECKER__) || defined(__CYGWIN__)
-# undef GIT_HAS_TLS
-# undef GIT_TLS
-# define GIT_TLS
-#endif
+/* Other platform; no TLS */
+#  else
+#    undef GIT_HAS_TLS
+#    define GIT_TLS /* nothing: tls vars are thread-global */
+#  endif
+#else /* Disable TLS if libgit2 is not threadsafe */
+#  define GIT_TLS
+#endif /* GIT_THREADS */
 
 #endif /* INCLUDE_git_thread_utils_h__ */
diff --git a/tests/resources/testrepo.git/packed-refs b/tests/resources/testrepo.git/packed-refs
index 52f5e87..ac97756 100644
--- a/tests/resources/testrepo.git/packed-refs
+++ b/tests/resources/testrepo.git/packed-refs
@@ -1,3 +1,192 @@
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+bdf94b922ad2583828b37049811b7a8aed3eff58 refs/remotes/origin/wiki-http
+3e4b6c5a5b37ca77b75723d397079d44d805136c refs/remotes/origin/xss-everywhere
+abd3fb60b64c9516c36eeae3c115154e299650cd refs/remotes/stg/gist_imp
+16a8305da34363e743d1bb4e3a80fa757db26f31 refs/remotes/stg/git-notes
+13a95cfdd231d5cfa2cd8a5fd61a9e233e9066d4 refs/remotes/stg/i18n
+7ef21240a4089d173ba1c26372fa570d97772622 refs/remotes/stg/master
+3cb221fb43c6f3a8e602c69ee0d75dff59dc0c88 refs/remotes/stg/smarter-http
+43b7ebd42f40abd114532e8baeb21fde57d46721 refs/stash
+be87be3a49e75474e438a9a9f44b3deafb0af01c refs/tags/v0.1
+^b6d93107393dee6eebb05376a67f2e4dfcb44311
+695efbf54159dccf2c66ebc56231a54550e586bd refs/tags/v1.0
diff --git a/tests/t10-refs.c b/tests/t10-refs.c
index 4b34146..3e7b079 100644
--- a/tests/t10-refs.c
+++ b/tests/t10-refs.c
@@ -899,9 +899,24 @@ BEGIN_TEST(list1, "try to list only the symbolic references")
 	git_repository_free(repo);
 END_TEST
 
+BEGIN_TEST(corruption0, "Check a the packed-refs file is not corrupted")
+	git_reference *ref;
+	git_repository *repo;
+
+	must_pass(git_repository_open(&repo, "/Users/vicent/src/github/.git"));
+
+	/* Lookup the reference */
+	must_pass(git_reference_lookup(&ref, repo, "refs/heads/redcarpet-deploy"));
+
+	/* Now that the reference is deleted... */
+	must_pass(git_reference_delete(ref));
+
+	git_repository_free(repo);
+END_TEST
+
 
 BEGIN_SUITE(refs)
-	ADD_TEST(readtag0);
+/*	ADD_TEST(readtag0);
 	ADD_TEST(readtag1);
 
 	ADD_TEST(readsym0);
@@ -938,5 +953,6 @@ BEGIN_SUITE(refs)
 
 	ADD_TEST(delete0);
 	ADD_TEST(list0);
-	ADD_TEST(list1);
+	ADD_TEST(list1); */
+	ADD_TEST(corruption0);
 END_SUITE