Adding upstream version 0.8.0.upstream/0.8.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 141 insertions, 0 deletions

diff --git a/lib/nghttp3_objalloc.h b/lib/nghttp3_objalloc.h
new file mode 100644
index 0000000..da39447
--- /dev/null
+++ b/lib/nghttp3_objalloc.h
@@ -0,0 +1,141 @@
+/*
+ * nghttp3
+ *
+ * Copyright (c) 2022 nghttp3 contributors
+ * Copyright (c) 2022 ngtcp2 contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef NGHTTP3_OBJALLOC_H
+#define NGHTTP3_OBJALLOC_H
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif /* HAVE_CONFIG_H */
+
+#include <nghttp3/nghttp3.h>
+
+#include "nghttp3_balloc.h"
+#include "nghttp3_opl.h"
+#include "nghttp3_macro.h"
+#include "nghttp3_mem.h"
+
+/*
+ * nghttp3_objalloc combines nghttp3_balloc and nghttp3_opl, and
+ * provides an object pool with the custom allocator to reduce the
+ * allocation and deallocation overheads for small objects.
+ */
+typedef struct nghttp3_objalloc {
+  nghttp3_balloc balloc;
+  nghttp3_opl opl;
+} nghttp3_objalloc;
+
+/*
+ * nghttp3_objalloc_init initializes |objalloc|.  |blklen| is directly
+ * passed to nghttp3_balloc_init.
+ */
+void nghttp3_objalloc_init(nghttp3_objalloc *objalloc, size_t blklen,
+                           const nghttp3_mem *mem);
+
+/*
+ * nghttp3_objalloc_free releases all allocated resources.
+ */
+void nghttp3_objalloc_free(nghttp3_objalloc *objalloc);
+
+/*
+ * nghttp3_objalloc_clear releases all allocated resources and
+ * initializes its state.
+ */
+void nghttp3_objalloc_clear(nghttp3_objalloc *objalloc);
+
+#ifndef NOMEMPOOL
+#  define nghttp3_objalloc_def(NAME, TYPE, OPLENTFIELD)                        \
+    inline static void nghttp3_objalloc_##NAME##_init(                         \
+        nghttp3_objalloc *objalloc, size_t nmemb, const nghttp3_mem *mem) {    \
+      nghttp3_objalloc_init(                                                   \
+          objalloc, ((sizeof(TYPE) + 0xfu) & ~(uintptr_t)0xfu) * nmemb, mem);  \
+    }                                                                          \
+                                                                               \
+    inline static TYPE *nghttp3_objalloc_##NAME##_get(                         \
+        nghttp3_objalloc *objalloc) {                                          \
+      nghttp3_opl_entry *oplent = nghttp3_opl_pop(&objalloc->opl);             \
+      TYPE *obj;                                                               \
+      int rv;                                                                  \
+                                                                               \
+      if (!oplent) {                                                           \
+        rv = nghttp3_balloc_get(&objalloc->balloc, (void **)&obj,              \
+                                sizeof(TYPE));                                 \
+        if (rv != 0) {                                                         \
+          return NULL;                                                         \
+        }                                                                      \
+                                                                               \
+        return obj;                                                            \
+      }                                                                        \
+                                                                               \
+      return nghttp3_struct_of(oplent, TYPE, OPLENTFIELD);                     \
+    }                                                                          \
+                                                                               \
+    inline static TYPE *nghttp3_objalloc_##NAME##_len_get(                     \
+        nghttp3_objalloc *objalloc, size_t len) {                              \
+      nghttp3_opl_entry *oplent = nghttp3_opl_pop(&objalloc->opl);             \
+      TYPE *obj;                                                               \
+      int rv;                                                                  \
+                                                                               \
+      if (!oplent) {                                                           \
+        rv = nghttp3_balloc_get(&objalloc->balloc, (void **)&obj, len);        \
+        if (rv != 0) {                                                         \
+          return NULL;                                                         \
+        }                                                                      \
+                                                                               \
+        return obj;                                                            \
+      }                                                                        \
+                                                                               \
+      return nghttp3_struct_of(oplent, TYPE, OPLENTFIELD);                     \
+    }                                                                          \
+                                                                               \
+    inline static void nghttp3_objalloc_##NAME##_release(                      \
+        nghttp3_objalloc *objalloc, TYPE *obj) {                               \
+      nghttp3_opl_push(&objalloc->opl, &obj->OPLENTFIELD);                     \
+    }
+#else /* NOMEMPOOL */
+#  define nghttp3_objalloc_def(NAME, TYPE, OPLENTFIELD)                        \
+    inline static void nghttp3_objalloc_##NAME##_init(                         \
+        nghttp3_objalloc *objalloc, size_t nmemb, const nghttp3_mem *mem) {    \
+      nghttp3_objalloc_init(                                                   \
+          objalloc, ((sizeof(TYPE) + 0xfu) & ~(uintptr_t)0xfu) * nmemb, mem);  \
+    }                                                                          \
+                                                                               \
+    inline static TYPE *nghttp3_objalloc_##NAME##_get(                         \
+        nghttp3_objalloc *objalloc) {                                          \
+      return nghttp3_mem_malloc(objalloc->balloc.mem, sizeof(TYPE));           \
+    }                                                                          \
+                                                                               \
+    inline static TYPE *nghttp3_objalloc_##NAME##_len_get(                     \
+        nghttp3_objalloc *objalloc, size_t len) {                              \
+      return nghttp3_mem_malloc(objalloc->balloc.mem, len);                    \
+    }                                                                          \
+                                                                               \
+    inline static void nghttp3_objalloc_##NAME##_release(                      \
+        nghttp3_objalloc *objalloc, TYPE *obj) {                               \
+      nghttp3_mem_free(objalloc->balloc.mem, obj);                             \
+    }
+#endif /* NOMEMPOOL */
+
+#endif /* NGHTTP3_OBJALLOC_H */