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- ;/* buildlist.c - Execute me to compile me with SAS C 5.10
- LC -b1 -cfistq -v -y -j73 buildlist.c
- Blink FROM LIB:c.o,buildlist.o TO buildlist LIBRARY LIB:LC.lib,LIB:Amiga.lib
- quit ;
-
- buildlist.c - example which uses an application-specific Exec list
-
-
- Copyright (c) 1992 Commodore-Amiga, Inc.
-
- This example is provided in electronic form by Commodore-Amiga, Inc. for
- use with the "Amiga ROM Kernel Reference Manual: Libraries", 3rd Edition,
- published by Addison-Wesley (ISBN 0-201-56774-1).
-
- The "Amiga ROM Kernel Reference Manual: Libraries" contains additional
- information on the correct usage of the techniques and operating system
- functions presented in these examples. The source and executable code
- of these examples may only be distributed in free electronic form, via
- bulletin board or as part of a fully non-commercial and freely
- redistributable diskette. Both the source and executable code (including
- comments) must be included, without modification, in any copy. This
- example may not be published in printed form or distributed with any
- commercial product. However, the programming techniques and support
- routines set forth in these examples may be used in the development
- of original executable software products for Commodore Amiga computers.
-
- All other rights reserved.
-
- This example is provided "as-is" and is subject to change; no
- warranties are made. All use is at your own risk. No liability or
- responsibility is assumed.
- */
-
- #include <exec/types.h>
- #include <exec/lists.h>
- #include <exec/nodes.h>
- #include <exec/memory.h>
-
- #include <clib/alib_protos.h>
- #include <clib/exec_protos.h>
-
- #include <string.h>
- #include <stdio.h>
-
- #ifdef LATTICE
- int CXBRK(void) { return(0); } /* Disable Lattice CTRL/C handling */
- void chkabort(void) { return; } /* really */
- #endif
-
- /* Our function prototypes */
- VOID AddName(struct List *, UBYTE *);
- VOID FreeNameNodes(struct List *);
- VOID DisplayNameList(struct List *);
- VOID DisplayName(struct List *, UBYTE *);
-
- struct NameNode {
- struct Node nn_Node; /* System Node structure */
- UBYTE nn_Data[62]; /* Node-specific data */
- };
-
- #define NAMENODE_ID 100 /* The type of "NameNode" */
-
- VOID main(VOID)
- {
- struct List *NameList; /* Note that a MinList would also work */
-
- if (!( NameList = AllocMem(sizeof(struct List),MEMF_CLEAR)) )
- printf("Out of memory\n");
- else {
- NewList(NameList); /* Important: prepare header for use */
-
- AddName(NameList,"Name7"); AddName(NameList,"Name6");
- AddName(NameList,"Name5"); AddName(NameList,"Name4");
- AddName(NameList,"Name2"); AddName(NameList,"Name0");
-
- AddName(NameList,"Name7"); AddName(NameList,"Name5");
- AddName(NameList,"Name3"); AddName(NameList,"Name1");
-
- DisplayName(NameList,"Name5");
- DisplayNameList(NameList);
-
- FreeNameNodes(NameList);
- FreeMem(NameList,sizeof(struct List)); /* Free list header */
- }
- }
-
- /* Allocate a NameNode structure, copy the given name into the structure,
- * then add it the specified list. This example does not provide an
- * error return for the out of memory condition.
- */
- VOID AddName(struct List *list, UBYTE *name)
- {
- struct NameNode *namenode;
-
- if (!( namenode = AllocMem(sizeof(struct NameNode),MEMF_CLEAR) ))
- printf("Out of memory\n");
- else {
- strcpy(namenode->nn_Data,name);
- namenode->nn_Node.ln_Name = namenode->nn_Data;
- namenode->nn_Node.ln_Type = NAMENODE_ID;
- namenode->nn_Node.ln_Pri = 0;
- AddHead((struct List *)list,(struct Node *)namenode);
- }
- }
-
- /*
- * Free the entire list, including the header. The header is not updated
- * as the list is freed. This function demonstrates how to avoid
- * referencing freed memory when deallocating nodes.
- */
- VOID FreeNameNodes(struct List *list)
- {
- struct NameNode *worknode;
- struct NameNode *nextnode;
-
- worknode = (struct NameNode *)(list->lh_Head); /* First node */
- while (nextnode = (struct NameNode *)(worknode->nn_Node.ln_Succ)) {
- FreeMem(worknode,sizeof(struct NameNode));
- worknode = nextnode;
- }
-
- }
-
- /*
- * Print the names of each node in a list.
- */
- VOID DisplayNameList(struct List *list)
- {
- struct Node *node;
-
- if (list->lh_TailPred == (struct Node *)list)
- printf("List is empty.\n");
- else {
- for (node = list->lh_Head ; node->ln_Succ ; node = node->ln_Succ)
- printf("%lx -> %s\n",node,node->ln_Name);
- }
- }
-
- /*
- * Print the location of all nodes with a specified name.
- */
- VOID DisplayName(struct List *list, UBYTE *name)
- {
- struct Node *node;
-
- if (node = FindName(list,name)) {
- while (node) {
- printf("Found a %s at location %lx\n",node->ln_Name,node);
- node = FindName((struct List *)node,name);
- }
- } else printf("No node with name %s found.\n",name);
- }