Add reusable, libc-compatible pkg/shm allocation functions

lib/osips_malloc.c

@@ -0,0 +1,116 @@
+/*
+ * OpenSIPS equivalent of the stdlib allocation functions
+ *
+ * Copyright (C) 2017 OpenSIPS Project
+ *
+ * This file is part of opensips, a free SIP server.
+ *
+ * opensips is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version
+ *
+ * opensips is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
+ */
+
+#include <string.h>
+
+#include "../mem/mem.h"
+#include "../mem/shm_mem.h"
+
+#include "osips_malloc.h"
+
+/* PKG (fastest) */
+
+void *osips_pkg_malloc(size_t size)
+{
+	return pkg_malloc(size);
+}
+
+void osips_pkg_free(void *ptr)
+{
+	pkg_free(ptr);
+}
+
+void *osips_pkg_calloc(size_t nmemb, size_t size)
+{
+	void *p;
+
+	p = pkg_malloc(nmemb * size);
+	if (p) {
+		memset(p, '\0', nmemb * size);
+	}
+
+	return p;
+}
+
+void *osips_pkg_realloc(void *ptr, size_t size)
+{
+	return pkg_realloc(ptr, size);
+}
+
+char *osips_pkg_strdup(const char *s)
+{
+	char *rval;
+	int len;
+
+	len = strlen(s) + 1;
+	rval = pkg_malloc(len);
+	if (!rval) {
+		return NULL;
+	}
+
+	memcpy(rval, s, len);
+	return rval;
+}
+
+/* SHM */
+
+void *osips_shm_malloc(size_t size)
+{
+	return shm_malloc(size);
+}
+
+void osips_shm_free(void *ptr)
+{
+	shm_free(ptr);
+}
+
+void *osips_shm_calloc(size_t nmemb, size_t size)
+{
+	void *p;
+
+	p = shm_malloc(nmemb * size);
+	if (p) {
+		memset(p, '\0', nmemb * size);
+	}
+
+	return p;
+}
+
+void *osips_shm_realloc(void *ptr, size_t size)
+{
+	return shm_realloc(ptr, size);
+}
+
+char *osips_shm_strdup(const char *s)
+{
+	char *rval;
+	int len;
+
+	len = strlen(s) + 1;
+	rval = shm_malloc(len);
+	if (!rval) {
+		return NULL;
+	}
+
+	memcpy(rval, s, len);
+	return rval;
+}

lib/osips_malloc.h

@@ -0,0 +1,38 @@
+/*
+ * OpenSIPS equivalent of the stdlib allocation functions
+ *
+ * Copyright (C) 2017 OpenSIPS Project
+ *
+ * This file is part of opensips, a free SIP server.
+ *
+ * opensips is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version
+ *
+ * opensips is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
+ */
+
+#ifndef __OSIPS_MALLOC_H__
+#define __OSIPS_MALLOC_H__
+
+void *osips_pkg_malloc(size_t size);
+void osips_pkg_free(void *ptr);
+void *osips_pkg_calloc(size_t nmemb, size_t size);
+void *osips_pkg_realloc(void *ptr, size_t size);
+char *osips_pkg_strdup(const char *s);
+
+void *osips_shm_malloc(size_t size);
+void osips_shm_free(void *ptr);
+void *osips_shm_calloc(size_t nmemb, size_t size);
+void *osips_shm_realloc(void *ptr, size_t size);
+char *osips_shm_strdup(const char *s);
+
+#endif /* __OSIPS_MALLOC_H__ */