SoW-2020-0002: Trace Hit Counters: trigger error reporting integration

[lttng-tools.git] / src / vendor / msgpack / sbuffer.h

diff --git a/src/vendor/msgpack/sbuffer.h b/src/vendor/msgpack/sbuffer.h
new file mode 100644 (file)
index 0000000..c494bae
--- /dev/null
+++ b/src/vendor/msgpack/sbuffer.h
@@ -0,0 +1,110 @@
+/*
+ * MessagePack for C simple buffer implementation
+ *
+ * Copyright (C) 2008-2009 FURUHASHI Sadayuki
+ *
+ *    Distributed under the Boost Software License, Version 1.0.
+ *    (See accompanying file LICENSE_1_0.txt or copy at
+ *    http://www.boost.org/LICENSE_1_0.txt)
+ */
+#ifndef MSGPACK_SBUFFER_H
+#define MSGPACK_SBUFFER_H
+
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/**
+ * @defgroup msgpack_sbuffer Simple buffer
+ * @ingroup msgpack_buffer
+ * @{
+ */
+
+typedef struct msgpack_sbuffer {
+    size_t size;
+    char* data;
+    size_t alloc;
+} msgpack_sbuffer;
+
+static inline void msgpack_sbuffer_init(msgpack_sbuffer* sbuf)
+{
+    memset(sbuf, 0, sizeof(msgpack_sbuffer));
+}
+
+static inline void msgpack_sbuffer_destroy(msgpack_sbuffer* sbuf)
+{
+    free(sbuf->data);
+}
+
+static inline msgpack_sbuffer* msgpack_sbuffer_new(void)
+{
+    return (msgpack_sbuffer*)calloc(1, sizeof(msgpack_sbuffer));
+}
+
+static inline void msgpack_sbuffer_free(msgpack_sbuffer* sbuf)
+{
+    if(sbuf == NULL) { return; }
+    msgpack_sbuffer_destroy(sbuf);
+    free(sbuf);
+}
+
+#ifndef MSGPACK_SBUFFER_INIT_SIZE
+#define MSGPACK_SBUFFER_INIT_SIZE 8192
+#endif
+
+static inline int msgpack_sbuffer_write(void* data, const char* buf, size_t len)
+{
+    msgpack_sbuffer* sbuf = (msgpack_sbuffer*)data;
+
+    if(sbuf->alloc - sbuf->size < len) {
+        void* tmp;
+        size_t nsize = (sbuf->alloc) ?
+                sbuf->alloc * 2 : MSGPACK_SBUFFER_INIT_SIZE;
+
+        while(nsize < sbuf->size + len) {
+            size_t tmp_nsize = nsize * 2;
+            if (tmp_nsize <= nsize) {
+                nsize = sbuf->size + len;
+                break;
+            }
+            nsize = tmp_nsize;
+        }
+
+        tmp = realloc(sbuf->data, nsize);
+        if(!tmp) { return -1; }
+
+        sbuf->data = (char*)tmp;
+        sbuf->alloc = nsize;
+    }
+
+    memcpy(sbuf->data + sbuf->size, buf, len);
+    sbuf->size += len;
+    return 0;
+}
+
+static inline char* msgpack_sbuffer_release(msgpack_sbuffer* sbuf)
+{
+    char* tmp = sbuf->data;
+    sbuf->size = 0;
+    sbuf->data = NULL;
+    sbuf->alloc = 0;
+    return tmp;
+}
+
+static inline void msgpack_sbuffer_clear(msgpack_sbuffer* sbuf)
+{
+    sbuf->size = 0;
+}
+
+/** @} */
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* msgpack/sbuffer.h */