diff options
Diffstat (limited to 'src/libgit2/errors.c')
| -rw-r--r-- | src/libgit2/errors.c | 81 |
1 files changed, 68 insertions, 13 deletions
diff --git a/src/libgit2/errors.c b/src/libgit2/errors.c index 1b94a5cf4..460dfa00f 100644 --- a/src/libgit2/errors.c +++ b/src/libgit2/errors.c @@ -26,22 +26,41 @@ static git_error uninitialized_error = { GIT_ERROR_INVALID }; +static git_error tlsdata_error = { + "thread-local data initialization failure", + GIT_ERROR +}; + static void set_error_from_buffer(int error_class) { - git_error *error = &GIT_THREADSTATE->error_t; - git_str *buf = &GIT_THREADSTATE->error_buf; + git_threadstate *threadstate = GIT_THREADSTATE; + git_error *error; + git_str *buf; + + if (!threadstate) + return; + + error = &threadstate->error_t; + buf = &threadstate->error_buf; error->message = buf->ptr; error->klass = error_class; - GIT_THREADSTATE->last_error = error; + threadstate->last_error = error; } static void set_error(int error_class, char *string) { - git_str *buf = &GIT_THREADSTATE->error_buf; + git_threadstate *threadstate = GIT_THREADSTATE; + git_str *buf; + + if (!threadstate) + return; + + buf = &threadstate->error_buf; git_str_clear(buf); + if (string) { git_str_puts(buf, string); git__free(string); @@ -52,7 +71,12 @@ static void set_error(int error_class, char *string) void git_error_set_oom(void) { - GIT_THREADSTATE->last_error = &oom_error; + git_threadstate *threadstate = GIT_THREADSTATE; + + if (!threadstate) + return; + + threadstate->last_error = &oom_error; } void git_error_set(int error_class, const char *fmt, ...) @@ -69,10 +93,18 @@ void git_error_vset(int error_class, const char *fmt, va_list ap) #ifdef GIT_WIN32 DWORD win32_error_code = (error_class == GIT_ERROR_OS) ? GetLastError() : 0; #endif + + git_threadstate *threadstate = GIT_THREADSTATE; int error_code = (error_class == GIT_ERROR_OS) ? errno : 0; - git_str *buf = &GIT_THREADSTATE->error_buf; + git_str *buf; + + if (!threadstate) + return; + + buf = &threadstate->error_buf; git_str_clear(buf); + if (fmt) { git_str_vprintf(buf, fmt, ap); if (error_class == GIT_ERROR_OS) @@ -81,7 +113,7 @@ void git_error_vset(int error_class, const char *fmt, va_list ap) if (error_class == GIT_ERROR_OS) { #ifdef GIT_WIN32 - char * win32_error = git_win32_get_error_message(win32_error_code); + char *win32_error = git_win32_get_error_message(win32_error_code); if (win32_error) { git_str_puts(buf, win32_error); git__free(win32_error); @@ -103,10 +135,16 @@ void git_error_vset(int error_class, const char *fmt, va_list ap) int git_error_set_str(int error_class, const char *string) { - git_str *buf = &GIT_THREADSTATE->error_buf; + git_threadstate *threadstate = GIT_THREADSTATE; + git_str *buf; GIT_ASSERT_ARG(string); + if (!threadstate) + return -1; + + buf = &threadstate->error_buf; + git_str_clear(buf); git_str_puts(buf, string); @@ -119,9 +157,14 @@ int git_error_set_str(int error_class, const char *string) void git_error_clear(void) { - if (GIT_THREADSTATE->last_error != NULL) { + git_threadstate *threadstate = GIT_THREADSTATE; + + if (!threadstate) + return; + + if (threadstate->last_error != NULL) { set_error(0, NULL); - GIT_THREADSTATE->last_error = NULL; + threadstate->last_error = NULL; } errno = 0; @@ -132,17 +175,29 @@ void git_error_clear(void) const git_error *git_error_last(void) { + git_threadstate *threadstate; + /* If the library is not initialized, return a static error. */ if (!git_libgit2_init_count()) return &uninitialized_error; - return GIT_THREADSTATE->last_error; + if ((threadstate = GIT_THREADSTATE) == NULL) + return &tlsdata_error; + + return threadstate->last_error; } int git_error_state_capture(git_error_state *state, int error_code) { - git_error *error = GIT_THREADSTATE->last_error; - git_str *error_buf = &GIT_THREADSTATE->error_buf; + git_threadstate *threadstate = GIT_THREADSTATE; + git_error *error; + git_str *error_buf; + + if (!threadstate) + return -1; + + error = threadstate->last_error; + error_buf = &threadstate->error_buf; memset(state, 0, sizeof(git_error_state)); |