11 nproc(); /* it can be updated dynamically */
12 nrep(); /* it can be updated dynamically */
16 dumpn("new target\n", node);
20 while(node->flags&NOTMADE){
21 if(work(node, (Node *)0, (Arc *)0))
22 did = 1; /* found something to do */
24 if(waitup(1, (int *)0) > 0){
25 if(node->flags&(NOTMADE|BEINGMADE)){
26 assert("must be run errors", runerrs);
27 break; /* nothing more waiting */
32 if(node->flags&BEINGMADE)
36 assert("target didn't get done", runerrs || (node->flags&MADE));
38 Bprint(&bout, "mk: '%s' is up to date\n", node->name);
46 n->flags &= ~(CANPRETEND|PRETENDING);
47 if(strchr(n->name, '(') ==0 || n->time)
48 n->flags |= CANPRETEND;
50 for(a = n->prereqs; a; a = a->next)
59 n->flags &= ~(CANPRETEND|PRETENDING);
66 static char buf[1024];
68 return getcwd(buf, sizeof buf);
72 work(Node *node, Node *p, Arc *parc)
79 /*print("work(%s) flags=0x%x time=%ld\n", node->name, node->flags, node->time);*//**/
80 if(node->flags&BEINGMADE)
82 if((node->flags&MADE) && (node->flags&PRETENDING) && p && outofdate(p, parc, 0)){
84 fprint(1, "unpretending %s(%ld) because %s is out of date(%ld)\n",
85 node->name, node->time, p->name, p->time);
89 have a look if we are pretending in case
90 someone has been unpretended out from underneath us
93 if(node->flags&PRETENDING){
98 /* consider no prerequsite case */
99 if(node->prereqs == 0){
101 fprint(2, "mk: don't know how to make '%s' in %s\n", node->name, dir());
103 node->flags |= BEINGMADE;
112 now see if we are out of date or what
117 for(a = node->prereqs; a; a = a->next)
119 did = work(a->n, node, a) || did;
120 if(a->n->flags&(NOTMADE|BEINGMADE))
122 if(outofdate(node, a, 0)){
124 if((ra == 0) || (ra->n == 0)
125 || (ra->n->time < a->n->time))
135 if(ready == 0) /* can't do anything now */
137 if(weoutofdate == 0){
142 can we pretend to be made?
144 if((iflag == 0) && (node->time == 0) && (node->flags&(PRETENDING|CANPRETEND))
145 && p && ra->n && !outofdate(p, ra, 0)){
146 node->flags &= ~CANPRETEND;
148 if(explain && ((node->flags&PRETENDING) == 0))
149 fprint(1, "pretending %s has time %ld\n", node->name, node->time);
150 node->flags |= PRETENDING;
154 node is out of date and we REALLY do have to do something.
155 quickly rescan for pretenders
157 for(a = node->prereqs; a; a = a->next)
158 if(a->n && (a->n->flags&PRETENDING)){
160 Bprint(&bout, "unpretending %s because of %s because of %s\n",
161 a->n->name, node->name, ra->n? ra->n->name : "rule with no prerequisites");
164 did = work(a->n, node, a) || did;
167 if(ready == 0) /* try later unless nothing has happened for -k's sake */
168 return(did || work(node, p, parc));
169 did = dorecipe(node) || did;
174 update(int fake, Node *node)
178 MADESET(node, fake? BEINGMADE : MADE);
179 if(((node->flags&VIRTUAL) == 0) && (access(node->name, 0) == 0)){
180 node->time = timeof(node->name, 1);
181 node->flags &= ~(CANPRETEND|PRETENDING);
182 for(a = node->prereqs; a; a = a->next)
184 outofdate(node, a, 1);
187 for(a = node->prereqs; a; a = a->next)
188 if(a->n && outofdate(node, a, 1))
189 node->time = a->n->time;
191 /* print("----node %s time=%ld flags=0x%x\n", node->name, node->time, node->flags);*//**/
195 pcmp(char *prog, char *p, char *q)
197 char buf[3*NAMEBLOCK];
201 snprint(buf, sizeof buf, "%s '%s' '%s'\n", prog, p, q);
202 pid = pipecmd(buf, 0, 0);
203 while(waitup(-3, &pid) >= 0)
209 outofdate(Node *node, Arc *arc, int eval)
211 char buf[3*NAMEBLOCK], *str;
217 snprint(buf, sizeof buf, "%s%c%s", node->name, 0377, arc->n->name);
218 sym = symlook(buf, S_OUTOFDATE, 0);
219 if(sym == 0 || eval){
222 ret = pcmp(arc->prog, node->name, arc->n->name);
224 sym->value = (void *)ret;
226 symlook(str, S_OUTOFDATE, (void *)ret);
228 ret = (int)sym->value;
230 } else if(strchr(arc->n->name, '(') && arc->n->time == 0) /* missing archive member */
233 return node->time < arc->n->time;