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Diffstat (limited to 'deps/jemalloc/include/jemalloc/internal/tsd_win.h')
-rw-r--r--deps/jemalloc/include/jemalloc/internal/tsd_win.h139
1 files changed, 139 insertions, 0 deletions
diff --git a/deps/jemalloc/include/jemalloc/internal/tsd_win.h b/deps/jemalloc/include/jemalloc/internal/tsd_win.h
new file mode 100644
index 000000000..cf30d18e3
--- /dev/null
+++ b/deps/jemalloc/include/jemalloc/internal/tsd_win.h
@@ -0,0 +1,139 @@
+#ifdef JEMALLOC_INTERNAL_TSD_WIN_H
+#error This file should be included only once, by tsd.h.
+#endif
+#define JEMALLOC_INTERNAL_TSD_WIN_H
+
+typedef struct {
+ bool initialized;
+ tsd_t val;
+} tsd_wrapper_t;
+
+extern DWORD tsd_tsd;
+extern tsd_wrapper_t tsd_boot_wrapper;
+extern bool tsd_booted;
+
+/* Initialization/cleanup. */
+JEMALLOC_ALWAYS_INLINE bool
+tsd_cleanup_wrapper(void) {
+ DWORD error = GetLastError();
+ tsd_wrapper_t *wrapper = (tsd_wrapper_t *)TlsGetValue(tsd_tsd);
+ SetLastError(error);
+
+ if (wrapper == NULL) {
+ return false;
+ }
+
+ if (wrapper->initialized) {
+ wrapper->initialized = false;
+ tsd_cleanup(&wrapper->val);
+ if (wrapper->initialized) {
+ /* Trigger another cleanup round. */
+ return true;
+ }
+ }
+ malloc_tsd_dalloc(wrapper);
+ return false;
+}
+
+JEMALLOC_ALWAYS_INLINE void
+tsd_wrapper_set(tsd_wrapper_t *wrapper) {
+ if (!TlsSetValue(tsd_tsd, (void *)wrapper)) {
+ malloc_write("<jemalloc>: Error setting TSD\n");
+ abort();
+ }
+}
+
+JEMALLOC_ALWAYS_INLINE tsd_wrapper_t *
+tsd_wrapper_get(bool init) {
+ DWORD error = GetLastError();
+ tsd_wrapper_t *wrapper = (tsd_wrapper_t *) TlsGetValue(tsd_tsd);
+ SetLastError(error);
+
+ if (init && unlikely(wrapper == NULL)) {
+ wrapper = (tsd_wrapper_t *)
+ malloc_tsd_malloc(sizeof(tsd_wrapper_t));
+ if (wrapper == NULL) {
+ malloc_write("<jemalloc>: Error allocating TSD\n");
+ abort();
+ } else {
+ wrapper->initialized = false;
+ /* MSVC is finicky about aggregate initialization. */
+ tsd_t tsd_initializer = TSD_INITIALIZER;
+ wrapper->val = tsd_initializer;
+ }
+ tsd_wrapper_set(wrapper);
+ }
+ return wrapper;
+}
+
+JEMALLOC_ALWAYS_INLINE bool
+tsd_boot0(void) {
+ tsd_tsd = TlsAlloc();
+ if (tsd_tsd == TLS_OUT_OF_INDEXES) {
+ return true;
+ }
+ malloc_tsd_cleanup_register(&tsd_cleanup_wrapper);
+ tsd_wrapper_set(&tsd_boot_wrapper);
+ tsd_booted = true;
+ return false;
+}
+
+JEMALLOC_ALWAYS_INLINE void
+tsd_boot1(void) {
+ tsd_wrapper_t *wrapper;
+ wrapper = (tsd_wrapper_t *)
+ malloc_tsd_malloc(sizeof(tsd_wrapper_t));
+ if (wrapper == NULL) {
+ malloc_write("<jemalloc>: Error allocating TSD\n");
+ abort();
+ }
+ tsd_boot_wrapper.initialized = false;
+ tsd_cleanup(&tsd_boot_wrapper.val);
+ wrapper->initialized = false;
+ tsd_t initializer = TSD_INITIALIZER;
+ wrapper->val = initializer;
+ tsd_wrapper_set(wrapper);
+}
+JEMALLOC_ALWAYS_INLINE bool
+tsd_boot(void) {
+ if (tsd_boot0()) {
+ return true;
+ }
+ tsd_boot1();
+ return false;
+}
+
+JEMALLOC_ALWAYS_INLINE bool
+tsd_booted_get(void) {
+ return tsd_booted;
+}
+
+JEMALLOC_ALWAYS_INLINE bool
+tsd_get_allocates(void) {
+ return true;
+}
+
+/* Get/set. */
+JEMALLOC_ALWAYS_INLINE tsd_t *
+tsd_get(bool init) {
+ tsd_wrapper_t *wrapper;
+
+ assert(tsd_booted);
+ wrapper = tsd_wrapper_get(init);
+ if (tsd_get_allocates() && !init && wrapper == NULL) {
+ return NULL;
+ }
+ return &wrapper->val;
+}
+
+JEMALLOC_ALWAYS_INLINE void
+tsd_set(tsd_t *val) {
+ tsd_wrapper_t *wrapper;
+
+ assert(tsd_booted);
+ wrapper = tsd_wrapper_get(true);
+ if (likely(&wrapper->val != val)) {
+ wrapper->val = *(val);
+ }
+ wrapper->initialized = true;
+}