Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / include / ipxe / params.h

diff --git a/qemu/roms/ipxe/src/include/ipxe/params.h b/qemu/roms/ipxe/src/include/ipxe/params.h
new file mode 100644 (file)
index 0000000..c2d82d9
--- /dev/null
+++ b/qemu/roms/ipxe/src/include/ipxe/params.h
@@ -0,0 +1,83 @@
+#ifndef _IPXE_PARAMS_H
+#define _IPXE_PARAMS_H
+
+/** @file
+ *
+ * Form parameters
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <ipxe/list.h>
+#include <ipxe/refcnt.h>
+
+/** A form parameter list */
+struct parameters {
+       /** Reference count */
+       struct refcnt refcnt;
+       /** List of all parameter lists */
+       struct list_head list;
+       /** Name */
+       const char *name;
+       /** Parameters */
+       struct list_head entries;
+};
+
+/** A form parameter */
+struct parameter {
+       /** List of form parameters */
+       struct list_head list;
+       /** Key */
+       const char *key;
+       /** Value */
+       const char *value;
+};
+
+/**
+ * Increment form parameter list reference count
+ *
+ * @v params           Parameter list, or NULL
+ * @ret params         Parameter list as passed in
+ */
+static inline __attribute__ (( always_inline )) struct parameters *
+params_get ( struct parameters *params ) {
+       ref_get ( &params->refcnt );
+       return params;
+}
+
+/**
+ * Decrement form parameter list reference count
+ *
+ * @v params           Parameter list, or NULL
+ */
+static inline __attribute__ (( always_inline )) void
+params_put ( struct parameters *params ) {
+       ref_put ( &params->refcnt );
+}
+
+/**
+ * Claim ownership of form parameter list
+ *
+ * @v params           Parameter list
+ * @ret params         Parameter list
+ */
+static inline __attribute__ (( always_inline )) struct parameters *
+claim_parameters ( struct parameters *params ) {
+
+       /* Remove from list of parameter lists */
+       list_del ( &params->list );
+
+       return params;
+}
+
+/** Iterate over all form parameters in a list */
+#define for_each_param( param, params )                                \
+       list_for_each_entry ( (param), &(params)->entries, list )
+
+extern struct parameters * find_parameters ( const char *name );
+extern struct parameters * create_parameters ( const char *name );
+extern struct parameter * add_parameter ( struct parameters *params,
+                                         const char *key, const char *value );
+
+#endif /* _IPXE_PARAMS_H */