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support for memo types (inline only)

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corrections to bitmask sizing.
moved references to page size to MdbHandle->pg_size
This commit is contained in:
brianb
2000-03-16 02:16:35 +00:00
parent 62e65cdd26
commit 9551d017a8
6 changed files with 37 additions and 19 deletions
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12
src/libmdb/file.c
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@@ -42,8 +42,8 @@ MdbHandle *mdb;
size_t mdb_read_pg(MdbHandle *mdb, unsigned long pg)
{
size_t len;
off_t offset = pg * MDB_PGSIZE;
struct stat status;
off_t offset = pg * mdb->pg_size;
fstat(mdb->fd, &status);
if (status.st_size < offset) {
@@ -51,12 +51,12 @@ struct stat status;
return 0;
}
lseek(mdb->fd, offset, SEEK_SET);
len = read(mdb->fd,mdb->pg_buf,MDB_PGSIZE);
len = read(mdb->fd,mdb->pg_buf,mdb->pg_size);
if (len==-1) {
perror("read");
return 0;
}
else if (len<MDB_PGSIZE) {
else if (len<mdb->pg_size) {
/* fprintf(stderr,"EOF reached.\n"); */
return 0;
}
@@ -69,7 +69,7 @@ int mdb_get_int16(MdbHandle *mdb, int offset)
unsigned char *c;
int i;
if (offset < 0 || offset+2 > MDB_PGSIZE) return -1;
if (offset < 0 || offset+2 > mdb->pg_size) return -1;
c = &mdb->pg_buf[offset];
i = c[1]*256+c[0];
@@ -82,7 +82,7 @@ long mdb_get_int32(MdbHandle *mdb, int offset)
long l;
unsigned char *c;
if (offset <0 || offset+4 > MDB_PGSIZE) return -1;
if (offset <0 || offset+4 > mdb->pg_size) return -1;
c = &mdb->pg_buf[offset];
l =c[3]; l<<=8;
l+=c[2]; l<<=8;
@@ -94,7 +94,7 @@ unsigned char *c;
}
int mdb_set_pos(MdbHandle *mdb, int pos)
{
if (pos<0 || pos >= MDB_PGSIZE) return 0;
if (pos<0 || pos >= mdb->pg_size) return 0;
mdb->cur_pos=pos;
return pos;