Imported Upstream version 0.7.21

[platform/upstream/libsolv.git] / src / util.h

diff --git a/src/util.h b/src/util.h
index 6eb7809..9c2b824 100644 (file)
--- a/src/util.h
+++ b/src/util.h
@@ -7,17 +7,115 @@
 
 /*
  * util.h
- * 
+ *
  */
 
-#ifndef UTIL_H
-#define UTIL_H
+#ifndef LIBSOLV_UTIL_H
+#define LIBSOLV_UTIL_H
+
+#include <stddef.h>
+#include <string.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * malloc
+ * exits with error message on error
+ */
+extern void *solv_malloc(size_t);
+extern void *solv_malloc2(size_t, size_t);
+extern void *solv_calloc(size_t, size_t);
+extern void *solv_realloc(void *, size_t);
+extern void *solv_realloc2(void *, size_t, size_t);
+extern void *solv_extend_realloc(void *, size_t, size_t, size_t);
+extern void *solv_free(void *);
+extern char *solv_strdup(const char *);
+extern void solv_oom(size_t, size_t);
+extern unsigned int solv_timems(unsigned int subtract);
+extern int solv_setcloexec(int fd, int state);
+extern void solv_sort(void *base, size_t nmemb, size_t size, int (*compar)(const void *, const void *, void *), void *compard);
+extern char *solv_dupjoin(const char *str1, const char *str2, const char *str3);
+extern char *solv_dupappend(const char *str1, const char *str2, const char *str3);
+extern int solv_hex2bin(const char **strp, unsigned char *buf, int bufl);
+extern char *solv_bin2hex(const unsigned char *buf, int l, char *str);
+extern size_t solv_validutf8(const char *buf);
+extern char *solv_latin1toutf8(const char *buf);
+extern char *solv_replacebadutf8(const char *buf, int replchar);
+
+
+static inline void *solv_extend(void *buf, size_t len, size_t nmemb, size_t size, size_t block)
+{
+  if (nmemb == 1)
+    {
+      if ((len & block) == 0)
+       buf = solv_extend_realloc(buf, len + 1, size, block);
+    }
+  else
+    {
+      if (((len - 1) | block) != ((len + nmemb - 1) | block))
+       buf = solv_extend_realloc(buf, len + nmemb, size, block);
+    }
+  return buf;
+}
+
+/**
+ * extend an array by reallocation and zero's the new section
+ * buf old pointer
+ * len current size
+ * nmbemb number of elements to add
+ * size size of each element
+ * block block size used to allocate the elements
+ */
+static inline void *solv_zextend(void *buf, size_t len, size_t nmemb, size_t size, size_t block)
+{
+  buf = solv_extend(buf, len, nmemb, size, block);
+  memset((char *)buf + len * size, 0, nmemb * size);
+  return buf;
+}
+
+static inline void *solv_extend_resize(void *buf, size_t len, size_t size, size_t block)
+{
+  if (len)
+    buf = solv_extend_realloc(buf, len, size, block);
+  return buf;
+}
+
+static inline void *solv_calloc_block(size_t len, size_t size, size_t block)
+{
+  void *buf;
+  if (!len)
+    return 0;
+  buf = solv_extend_realloc((void *)0, len, size, block);
+  memset(buf, 0, ((len + block) & ~block) * size);
+  return buf;
+}
+
+static inline void *solv_memdup(const void *buf, size_t len)
+{
+  void *newbuf;
+  if (!buf)
+    return 0;
+  newbuf = solv_malloc(len);
+  if (len)
+    memcpy(newbuf, buf, len);
+  return newbuf;
+}
+
+static inline void *solv_memdup2(const void *buf, size_t num, size_t len)
+{
+  void *newbuf;
+  if (!buf)
+    return 0;
+  newbuf = solv_malloc2(num, len);
+  if (num)
+    memcpy(newbuf, buf, num * len);
+  return newbuf;
+}
 
-extern void *xmalloc(size_t);
-extern void *xmalloc2(size_t, size_t);
-extern void *xcalloc(size_t, size_t);
-extern void *xrealloc(void *, size_t);
-extern void *xrealloc2(void *, size_t, size_t);
-extern void *xfree(void *);
+#ifdef __cplusplus
+}
+#endif
 
-#endif /* UTIL_H */
+#endif /* LIBSOLV_UTIL_H */