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iobuf implementation

Dario Rodriguez authored on 12/03/2014 12:35:36
Showing 2 changed files
src/iobuf.c
History View file @ d299043
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new file mode 100644
... ... 
@@ -0,0 +1,70 @@
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+/*
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+ * iobuf.c
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+ *
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+ * An I/O buffer library based on sbuf.
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+ *
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+ * History:
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+ *      12/03/2014 Creation.
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+ *
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+ * Author: Dario Rodriguez dario@softhome.net
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+ * This library is licensed on the terms of the GNU LGPL v2+
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+ */
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+
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+#include <stdlib.h>
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+#include "iobuf.h"
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+
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+/* exported funcions */
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+siobuf *
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+iobuf_init(int insize,int outsize)
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+{
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+        siobuf *iobuf;
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+        if((iobuf=malloc(sizeof(siobuf)))==NULL)
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+                return(NULL);
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+        memset(iobuf,0,sizeof(siobuf));
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+        if((iobuf->in=sbuf_init(insize))==NULL) {
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+                free(iobuf),iobuf=NULL;
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+                return(NULL);
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+        }
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+        if((iobuf->out=sbuf_init(outsize))==NULL) {
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+                sbuf_free(iobuf->in),iobuf->in=NULL;
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+                free(iobuf),iobuf=NULL;
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+                return(NULL);
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+        }
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+        return(iobuf);
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+}
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+
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+siobuf *
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+iobuf_staticinit(siobuf *uninitiobuf, sbuf *uninitinbuf, sbuf *uninitoutbuf,int insize, int outsize, char *inbuf, char *outbuf)
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+{
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+        memset(uninitiobuf,0,sizeof(siobuf));
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+        if((siobuf->in=sbuf_staticinit(uninitinbuf,insize,inbuf))==NULL)
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+                return(NULL);
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+        if((siobuf->out=sbuf_staticinit(uninitoutbuf,outsize,outbuf))==NULL)
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+                return(NULL);
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+        return(uninitiobuf);
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+}
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+
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+void
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+iobuf_free(siobuf *iobuf)
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+{
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+        if(iobuf==NULL)
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+                return;
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+        if(iobuf->in!=NULL)
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+                sbuf_free(iobuf->in),iobuf->in=NULL;
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+        if(iobuf->out!=NULL)
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+                sbuf_free(iobuf->out),iobuf->out=NULL;
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+        free(iobuf);
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+}
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+
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+void
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+iobuf_staticfree(siobuf *iobuf)
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+{
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+        if(iobuf==NULL)
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+                return;
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+        sbuf_staticfree(iobuf->in),iobuf->in=NULL;
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+        sbuf_staticfree(iobuf->out),iobuf->out=NULL;
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+        return;
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+}
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+
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+#endif
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+
src/iobuf.h
History View file @ d299043
... ... 
@@ -1,12 +1,13 @@
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 /*
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  * iobuf.h
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  *
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- * A O/O buffer library based on sbuf.
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+ * An I/O buffer library based on sbuf.
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  *
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  * Header file.
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  *
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  * History:
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  *      21/01/2014 Creation.
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+ *      12/03/2014 Fix _staticinit() and  _*free() prototypes.
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  *
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  * Author: Dario Rodriguez dario@softhome.net
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  * This library is licensed on the terms of the GNU LGPL v2+
... ... 
@@ -25,10 +26,10 @@ typedef struct {
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 /* iobuf */
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 siobuf *iobuf_init(int insize,int outsize);
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-siobuf *iobuf_staticinit(siobuf *uninitiobuf,int insize, int outsize, char *inbuf, char *outbuf);
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+siobuf *iobuf_staticinit(siobuf *uninitiobuf, sbuf *uninitinbuf, sbuf *uninitoutbuf,int insize, int outsize, char *inbuf, char *outbuf);
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-siobuf *iobuf_free(siobuf *);
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-siobuf *iobuf_staticfree(siobuf *);
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+void iobuf_free(siobuf *iobuf);
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+void iobuf_staticfree(siobuf *iobuf);
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 #endif
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