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Diffstat (limited to 'src/libgit2/threadstate.c')
-rw-r--r-- | src/libgit2/threadstate.c | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/src/libgit2/threadstate.c b/src/libgit2/threadstate.c deleted file mode 100644 index ed9bb9b..0000000 --- a/src/libgit2/threadstate.c +++ /dev/null @@ -1,97 +0,0 @@ -/* - * Copyright (C) the libgit2 contributors. All rights reserved. - * - * This file is part of libgit2, distributed under the GNU GPL v2 with - * a Linking Exception. For full terms see the included COPYING file. - */ - -#include "threadstate.h" -#include "runtime.h" - -/** - * Handle the thread-local state - * - * `git_threadstate_global_init` will be called as part - * of `git_libgit2_init` (which itself must be called - * before calling any other function in the library). - * - * This function allocates a TLS index to store the per- - * thread state. - * - * Any internal method that requires thread-local state - * will then call `git_threadstate_get()` which returns a - * pointer to the thread-local state structure; this - * structure is lazily allocated on each thread. - * - * This mechanism will register a shutdown handler - * (`git_threadstate_global_shutdown`) which will free the - * TLS index. This shutdown handler will be called by - * `git_libgit2_shutdown`. - */ - -static git_tlsdata_key tls_key; - -static void threadstate_dispose(git_threadstate *threadstate) -{ - if (!threadstate) - return; - - if (threadstate->error_t.message != git_str__initstr) - git__free(threadstate->error_t.message); - threadstate->error_t.message = NULL; -} - -static void GIT_SYSTEM_CALL threadstate_free(void *threadstate) -{ - threadstate_dispose(threadstate); - git__free(threadstate); -} - -static void git_threadstate_global_shutdown(void) -{ - git_threadstate *threadstate; - - threadstate = git_tlsdata_get(tls_key); - git_tlsdata_set(tls_key, NULL); - - threadstate_dispose(threadstate); - git__free(threadstate); - - git_tlsdata_dispose(tls_key); -} - -int git_threadstate_global_init(void) -{ - if (git_tlsdata_init(&tls_key, &threadstate_free) != 0) - return -1; - - return git_runtime_shutdown_register(git_threadstate_global_shutdown); -} - -git_threadstate *git_threadstate_get(void) -{ - git_threadstate *threadstate; - - if ((threadstate = git_tlsdata_get(tls_key)) != NULL) - return threadstate; - - /* - * Avoid git__malloc here, since if it fails, it sets an error - * message, which requires thread state, which would allocate - * here, which would fail, which would set an error message... - */ - - if ((threadstate = git__allocator.gmalloc(sizeof(git_threadstate), - __FILE__, __LINE__)) == NULL) - return NULL; - - memset(threadstate, 0, sizeof(git_threadstate)); - - if (git_str_init(&threadstate->error_buf, 0) < 0) { - git__allocator.gfree(threadstate); - return NULL; - } - - git_tlsdata_set(tls_key, threadstate); - return threadstate; -} |