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added man pages for utils.

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lots of gmdb2 work.
added statistics collection.
This commit is contained in:
brianb
2003-01-05 14:57:50 +00:00
parent cc362c42e9
commit 320f03c401
23 changed files with 1239 additions and 123 deletions
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41
src/libmdb/file.c
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@@ -51,6 +51,7 @@ int j,pos;
/* fprintf(stderr,"Couldn't open file %s\n",filename); */
return NULL;
}
mdb->f->refs++;
if (!mdb_read_pg(mdb, 0)) {
fprintf(stderr,"Couldn't read first page.\n");
return NULL;
@@ -87,9 +88,30 @@ MdbHandle *mdb_open(char *filename)
void mdb_close(MdbHandle *mdb)
{
if (mdb->f) {
mdb_free_file(mdb->f);
mdb->f->refs--;
if (mdb->f->refs<=0) mdb_free_file(mdb->f);
}
}
MdbHandle *mdb_clone_handle(MdbHandle *mdb)
{
MdbHandle *newmdb;
MdbCatalogEntry *entry;
int i;
newmdb = mdb_alloc_handle();
memcpy(newmdb, mdb, sizeof(MdbHandle));
newmdb->stats = NULL;
newmdb->catalog = g_array_new(FALSE,FALSE,sizeof(MdbCatalogEntry));
for (i=0;i<mdb->num_catalog;i++) {
entry = g_ptr_array_index(mdb->catalog,i);
newmdb->catalog = g_array_append_val(newmdb->catalog, entry);
}
mdb->backend_name = NULL;
if (mdb->f) {
mdb->f->refs++;
}
return newmdb;
}
/*
** mdb_read a wrapper for read that bails if anything is wrong
@@ -121,6 +143,9 @@ off_t offset = pg * mdb->fmt->pg_size;
fprintf(stderr,"offset %lu is beyond EOF\n",offset);
return 0;
}
if (mdb->stats && mdb->stats->collect)
mdb->stats->pg_reads++;
lseek(mdb->f->fd, offset, SEEK_SET);
len = read(mdb->f->fd,pg_buf,mdb->fmt->pg_size);
if (len==-1) {
@@ -166,6 +191,20 @@ int i;
return i;
}
gint32 mdb_get_int24_msb(MdbHandle *mdb, int offset)
{
gint32 l;
unsigned char *c;
if (offset <0 || offset+3 > mdb->fmt->pg_size) return -1;
c = &mdb->pg_buf[offset];
l =c[0]; l<<=8;
l+=c[1]; l<<=8;
l+=c[2];
mdb->cur_pos+=3;
return l;
}
gint32 mdb_get_int24(MdbHandle *mdb, int offset)
{
gint32 l;