Cross Reference: /vbox/src/VBox/Devices/PC/ipxe/src/hci/readline.c

Lines Matching defs:history
76  * Locate history entry
78  * @v history		History buffer
79  * @v depth		Depth within history buffer
83 history_entry ( struct readline_history *history, unsigned int depth ) {
86 	offset = ( ( history->next - depth ) %
87 		   ( sizeof ( history->entries ) /
88 		     sizeof ( history->entries[0] ) ) );
89 	return &history->entries[offset];
93  * Read string from history buffer
95  * @v history		History buffer
96  * @v depth		Depth within history buffer
99 static const char * history_fetch ( struct readline_history *history,
106 	entry = history_entry ( history, depth );
111  * Write temporary string copy to history buffer
113  * @v history		History buffer
114  * @v depth		Depth within history buffer
117 static void history_store ( struct readline_history *history,
126 		DBGC ( history, "READLINE %p could not store string\n",
127 		       history );
132 	entry = history_entry ( history, depth );
138  * Move to new history depth
140  * @v history		History buffer
145 static const char * history_move ( struct readline_history *history,
147 	unsigned int new_depth = ( history->depth + offset );
148 	const char * new_string = history_fetch ( history, new_depth );
157 	history_store ( history, history->depth, old_string );
160 	history->depth = new_depth;
167  * Append new history entry
169  * @v history		History buffer
172 static void history_append ( struct readline_history *history,
177 	entry = history_entry ( history, 0 );
182 		DBGC ( history, "READLINE %p could not append string\n",
183 		       history );
187 	/* Increment history position */
188 	history->next++;
191 	entry = history_entry ( history, 0 );
197  * Clean up history after editing
199  * @v history		History buffer
201 static void history_cleanup ( struct readline_history *history ) {
206 	for ( i = 0 ; i < ( sizeof ( history->entries ) /
207 			    sizeof ( history->entries[0] ) ) ; i++ ) {
208 		entry = &history->entries[i];
214 	history->depth = 0;
217 	entry = history_entry ( history, 0 );
222  * Free history buffer
224  * @v history		History buffer
226 void history_free ( struct readline_history *history ) {
231 	for ( i = 0 ; i < ( sizeof ( history->entries ) /
232 			    sizeof ( history->entries[0] ) ) ; i++ ) {
233 		entry = &history->entries[i];
240  * Read line from console (with history)
243  * @v history		History buffer, or NULL for no history
250 			  struct readline_history *history ) {
293 		/* Handle history movement, if applicable */
294 		if ( move_by && history ) {
295 			new_string = history_move ( history, move_by, buf );
305 	if ( history ) {
307 			history_append ( history, line );
308 		history_cleanup ( history );