Merge pull request #159 from Parallel-NetCDF/strdup

add NCI_Strdup

Author: wkliao

src/drivers/common/mem_alloc.c

@@ -202,6 +202,32 @@ void *NCI_Malloc_fn(size_t      size,
 }
 
 
+/*----< NCI_Strdup() >-------------------------------------------------------*/
+/* This subroutine is esstentially the same as calling strdup().
+ */
+void *NCI_Strdup_fn(const char *src,
+                    const int   lineno,
+                    const char *func,
+                    const char *filename)
+{
+    if (src == NULL) return NULL;
+
+    size_t len = strlen(src);
+    void *buf = malloc(len + 1);
+#ifdef PNETCDF_DEBUG
+    if (len >= 0 && buf == NULL)
+        fprintf(stderr, "malloc(%zd) failed in file %s func %s line %d\n",
+                len, filename, func, lineno);
+#endif
+    if (len > 0) memcpy(buf, src, len);
+    ((char*)buf)[len] = '\0';
+#ifdef PNC_MALLOC_TRACE
+    ncmpii_add_mem_entry(buf, len, lineno, func, filename);
+#endif
+    return buf;
+}
+
+
 /*----< NCI_Calloc_fn() >-----------------------------------------------------*/
 /* This subroutine is esstentially the same as calling calloc().
  * According to calloc man page, If nelem is 0, then calloc() returns either

src/drivers/include/common.h

@@ -57,6 +57,10 @@ extern void *
 NCI_Malloc_fn(size_t size, const int lineno, const char *func,
               const char *filename);
 
+extern void *
+NCI_Strdup_fn(const char *src, const int lineno, const char *func,
+              const char *filename);
+
 extern void *
 NCI_Calloc_fn(size_t nelem, size_t elsize, const int lineno, const char *func,
               const char *filename);
@@ -71,11 +75,13 @@ NCI_Free_fn(void *ptr, const int lineno, const char *func,
 
 #if defined(PNETCDF_DEBUG) || defined(PNC_MALLOC_TRACE)
 #define NCI_Malloc(a)    NCI_Malloc_fn(a,__LINE__,__func__,__FILE__)
+#define NCI_Strdup(a)    NCI_Strdup_fn(a,__LINE__,__func__,__FILE__)
 #define NCI_Calloc(a,b)  NCI_Calloc_fn(a,b,__LINE__,__func__,__FILE__)
 #define NCI_Realloc(a,b) NCI_Realloc_fn(a,b,__LINE__,__func__,__FILE__)
 #define NCI_Free(a)      NCI_Free_fn(a,__LINE__,__func__,__FILE__)
 #else
 #define NCI_Malloc(a)    malloc(a)
+#define NCI_Strdup(a)    strdup(a)
 #define NCI_Calloc(a,b)  calloc(a,b)
 #define NCI_Realloc(a,b) realloc(a,b)
 #define NCI_Free(a)      free(a)