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venti: add arenapart support to wrarena

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R=rsc
http://codereview.appspot.com/5988058
This commit is contained in:
Russ Cox 2012-04-07 15:38:59 -04:00
parent b27a990f9f
commit 20271fedfb
1 changed files with 16 additions and 2 deletions
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16
src/cmd/venti/srv/wrarena.c
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@ -131,6 +131,7 @@ threadmain(int argc, char *argv[])
int i;
char *file;
Arena *arena;
ArenaPart *ap;
u64int offset, aoffset;
Part *part;
uchar buf[8192];
@ -180,6 +181,14 @@ threadmain(int argc, char *argv[])
part = initpart(file, OREAD);
if(part == nil)
sysfatal("can't open file %s: %r", file);
initdcache(8 * MaxDiskBlock);
// Try as arena partition.
arena = nil;
ap = initarenapart(part);
if(ap == nil)
goto loaded;
if(readpart(part, aoffset, buf, sizeof buf) < 0)
sysfatal("can't read file %s: %r", file);
@ -191,12 +200,12 @@ threadmain(int argc, char *argv[])
head.size, part->size);
partblocksize(part, head.blocksize);
initdcache(8 * MaxDiskBlock);
arena = initarena(part, aoffset, head.size, head.blocksize);
if(arena == nil)
sysfatal("initarena: %r");
loaded:
z = nil;
if(host==nil || strcmp(host, "/dev/null") != 0){
z = vtdial(host);
@ -211,7 +220,12 @@ threadmain(int argc, char *argv[])
for(i=0; i<12; i++)
vtproc(vtsendthread, nil);
if(ap != nil) {
for(i=0 i<ap->narenas; i++)
rdarena(ap->arenas[i], 0);
} else
rdarena(arena, offset);
memset(&zerocl, 0, sizeof zerocl);
for(i=0; i<12; i++)
send(c, &zerocl);