shithub: cuefs

Download patch

ref: a3ab642abb64603e3fbef313dee420a704e95563
parent: fff686c2f47cc41c09328e9f5bffe5b4a1037281
author: Tevo <estevan.cps@gmail.com>
date: Fri Nov 20 20:46:38 EST 2020 

Filesystem stub


--- a/cue.c
+++ b/cue.c
@@ -19,6 +19,43 @@
 	return emallocz(sizeof(Cuesheet), 1);
 }
 
+void
+maybefree(void *s, void *p)
+{
+	if(p != nil && p != s)
+		free(p);
+}
+
+void
+recfreeentries(Cuesheet *s, Entry *cur)
+{
+	if(cur == nil)
+		return;
+	recfreeentries(s, cur->next);
+	maybefree(nil, cur->starts);
+	/* file should get freed by the cuesheet */
+	maybefree(nil, cur->title);
+	maybefree(s->performer, cur->performer);
+}
+
+void
+recfreefiles(Cuesheet *s, AFile *cur)
+{
+	if(cur == nil)
+		return;
+	recfreefiles(s, cur->next);
+	maybefree(nil, cur->name);
+}
+
+void
+freesheet(Cuesheet *s)
+{
+	recfreeentries(s, s->entries);
+	recfreefiles(s, s->files);
+	maybefree(nil, s->title);
+	maybefree(nil, s->performer);
+}
+
 AFile*
 lastfile(Cuesheet *c)
 {
@@ -126,4 +163,21 @@
 
 	atleast(c->curentry, i);
 	c->curentry->starts[i] = t;
+}
+
+char*
+formatext(AFile *f)
+{
+	char *tab[] =
+	{
+		[MP3]		= "mp3",
+		[AIFF]		= "aiff",
+		[BINARY]	= "pcm",
+		[MOTOROLA]	= ""		/* not sure */
+	};
+
+	if(f->type != WAVE)
+		return tab[f->type];
+
+	return "wav";	/* FIXME */
 }
--- a/cuefs.h
+++ b/cuefs.h
@@ -63,6 +63,7 @@
 Timestamp parsetime(int, int, int);
 
 Cuesheet* newsheet(void);
+void freesheet(Cuesheet*);
 
 void setperformer(Cuesheet*, char*);
 void settitle(Cuesheet*, char*);
@@ -69,3 +70,7 @@
 void addfile(Cuesheet*, char*, int);
 void addnewtrack(Cuesheet*, int);
 void settimestamp(Cuesheet*, int, Timestamp);
+
+char* formatext(AFile*);
+
+void cuefsinit(Cuesheet*, char*);
--- a/fs.c
+++ b/fs.c
@@ -1,7 +1,56 @@
 #include <u.h>
 #include <libc.h>
+#include <fcall.h>
+#include <thread.h>
+#include <9p.h>
 
 #include "cuefs.h"
 #include "y.tab.h"
 
+char *Estub = "not yet";
+
 Cuesheet *cursheet;
+
+void
+fsopen(Req *r)
+{
+	respond(r, nil);
+}
+
+void
+fsread(Req *r)
+{
+	respond(r, Estub);
+}
+
+void
+fsend(Srv *s)
+{
+	freesheet(s->aux);
+}
+
+Srv fs =
+{
+	.open	= fsopen,
+	.read	= fsread,
+
+	.end	= fsend
+};
+
+void
+cuefsinit(Cuesheet *sheet, char *mtpt)
+{
+	char *s;
+
+	fs.aux	= sheet;
+	fs.tree	= alloctree(nil, nil, DMDIR | 0444, nil);
+
+	for(Entry *e = sheet->entries; e != nil; e = e->next)
+	{
+		s = smprint("%02d - %s.%s", e->index, e->title, formatext(e->file));
+		createfile(fs.tree->root, s, nil, 0444, e);
+		free(s);
+	}
+
+	postmountsrv(&fs, nil, mtpt, MREPL);
+}
--- a/main.c
+++ b/main.c
@@ -8,7 +8,7 @@
 void
 usage(void)
 {
-	fprint(2, "usage: %s\n", argv0);
+	fprint(2, "usage: %s [-D] [-m mtpt] file\n", argv0);
 	exits("usage");
 }
 
@@ -15,7 +15,16 @@
 void
 main(int argc, char **argv)
 {
+	extern int chatty9p;
+	char *mtpt = "/n/cue";
+
 	ARGBEGIN {
+	case 'D':
+		chatty9p++;
+		break;
+	case 'm':
+		mtpt = EARGF(usage());
+		break;
 	default:
 		usage();
 	} ARGEND;
@@ -33,6 +42,8 @@
 	yyparse();
 
 	close(infd);
+
+	cuefsinit(cursheet, mtpt);
 
 	exits(0);
 }