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Diffstat (limited to 'src/backend/storage/smgr/md.c')
-rw-r--r--src/backend/storage/smgr/md.c152
1 files changed, 76 insertions, 76 deletions
diff --git a/src/backend/storage/smgr/md.c b/src/backend/storage/smgr/md.c
index 7a2903fff5c..755d29266e6 100644
--- a/src/backend/storage/smgr/md.c
+++ b/src/backend/storage/smgr/md.c
@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/storage/smgr/md.c,v 1.19 1997/09/07 04:49:17 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/storage/smgr/md.c,v 1.20 1997/09/08 02:29:28 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -43,17 +43,17 @@
typedef struct _MdfdVec
{
- int mdfd_vfd; /* fd number in vfd pool */
- uint16 mdfd_flags; /* clean, dirty, free */
- int mdfd_lstbcnt; /* most recent block count */
- int mdfd_nextFree; /* next free vector */
+ int mdfd_vfd; /* fd number in vfd pool */
+ uint16 mdfd_flags; /* clean, dirty, free */
+ int mdfd_lstbcnt; /* most recent block count */
+ int mdfd_nextFree; /* next free vector */
struct _MdfdVec *mdfd_chain;/* for large relations */
-} MdfdVec;
+} MdfdVec;
-static int Nfds = 100;
+static int Nfds = 100;
static MdfdVec *Md_fdvec = (MdfdVec *) NULL;
-static int Md_Free = -1;
-static int CurFd = 0;
+static int Md_Free = -1;
+static int CurFd = 0;
static MemoryContext MdCxt;
#define MDFD_DIRTY (uint16) 0x01
@@ -64,8 +64,8 @@ static MemoryContext MdCxt;
/* routines declared here */
static MdfdVec *_mdfd_openseg(Relation reln, int segno, int oflags);
static MdfdVec *_mdfd_getseg(Relation reln, int blkno, int oflag);
-static int _fdvec_alloc(void);
-static void _fdvec_free(int);
+static int _fdvec_alloc(void);
+static void _fdvec_free(int);
static BlockNumber _mdnblocks(File file, Size blcksz);
/*
@@ -82,8 +82,8 @@ static BlockNumber _mdnblocks(File file, Size blcksz);
int
mdinit()
{
- MemoryContext oldcxt;
- int i;
+ MemoryContext oldcxt;
+ int i;
MdCxt = (MemoryContext) CreateGlobalMemory("MdSmgr");
if (MdCxt == (MemoryContext) NULL)
@@ -113,9 +113,9 @@ mdinit()
int
mdcreate(Relation reln)
{
- int fd,
- vfd;
- char *path;
+ int fd,
+ vfd;
+ char *path;
path = relpath(&(reln->rd_rel->relname.data[0]));
fd = FileNameOpenFile(path, O_RDWR | O_CREAT | O_EXCL, 0600);
@@ -158,13 +158,13 @@ mdcreate(Relation reln)
int
mdunlink(Relation reln)
{
- int fd;
- int i;
- MdfdVec *v,
- *ov;
- MemoryContext oldcxt;
- char fname[NAMEDATALEN];
- char tname[NAMEDATALEN + 10]; /* leave room for overflow
+ int fd;
+ int i;
+ MdfdVec *v,
+ *ov;
+ MemoryContext oldcxt;
+ char fname[NAMEDATALEN];
+ char tname[NAMEDATALEN + 10]; /* leave room for overflow
* suffixes */
/*
@@ -215,9 +215,9 @@ mdunlink(Relation reln)
int
mdextend(Relation reln, char *buffer)
{
- long pos;
- int nblocks;
- MdfdVec *v;
+ long pos;
+ int nblocks;
+ MdfdVec *v;
nblocks = mdnblocks(reln);
v = _mdfd_getseg(reln, nblocks, O_CREAT);
@@ -250,9 +250,9 @@ mdextend(Relation reln, char *buffer)
int
mdopen(Relation reln)
{
- char *path;
- int fd;
- int vfd;
+ char *path;
+ int fd;
+ int vfd;
path = relpath(&(reln->rd_rel->relname.data[0]));
@@ -290,10 +290,10 @@ mdopen(Relation reln)
int
mdclose(Relation reln)
{
- int fd;
- MdfdVec *v,
- *ov;
- MemoryContext oldcxt;
+ int fd;
+ MdfdVec *v,
+ *ov;
+ MemoryContext oldcxt;
fd = RelationGetFile(reln);
@@ -338,10 +338,10 @@ mdclose(Relation reln)
int
mdread(Relation reln, BlockNumber blocknum, char *buffer)
{
- int status;
- long seekpos;
- int nbytes;
- MdfdVec *v;
+ int status;
+ long seekpos;
+ int nbytes;
+ MdfdVec *v;
v = _mdfd_getseg(reln, blocknum, 0);
@@ -381,9 +381,9 @@ mdread(Relation reln, BlockNumber blocknum, char *buffer)
int
mdwrite(Relation reln, BlockNumber blocknum, char *buffer)
{
- int status;
- long seekpos;
- MdfdVec *v;
+ int status;
+ long seekpos;
+ MdfdVec *v;
v = _mdfd_getseg(reln, blocknum, 0);
@@ -416,9 +416,9 @@ mdwrite(Relation reln, BlockNumber blocknum, char *buffer)
int
mdflush(Relation reln, BlockNumber blocknum, char *buffer)
{
- int status;
- long seekpos;
- MdfdVec *v;
+ int status;
+ long seekpos;
+ MdfdVec *v;
v = _mdfd_getseg(reln, blocknum, 0);
@@ -465,12 +465,12 @@ mdblindwrt(char *dbstr,
BlockNumber blkno,
char *buffer)
{
- int fd;
- int segno;
- long seekpos;
- int status;
- char *path;
- int nchars;
+ int fd;
+ int segno;
+ long seekpos;
+ int status;
+ char *path;
+ int nchars;
/* be sure we have enough space for the '.segno', if any */
segno = blkno / RELSEG_SIZE;
@@ -532,10 +532,10 @@ mdblindwrt(char *dbstr,
int
mdnblocks(Relation reln)
{
- int fd;
- MdfdVec *v;
- int nblocks;
- int segno;
+ int fd;
+ MdfdVec *v;
+ int nblocks;
+ int segno;
fd = RelationGetFile(reln);
v = &Md_fdvec[fd];
@@ -580,9 +580,9 @@ mdnblocks(Relation reln)
int
mdtruncate(Relation reln, int nblocks)
{
- int fd;
- MdfdVec *v;
- int curnblk;
+ int fd;
+ MdfdVec *v;
+ int curnblk;
curnblk = mdnblocks(reln);
if (curnblk / RELSEG_SIZE > 0)
@@ -615,8 +615,8 @@ mdtruncate(Relation reln, int nblocks)
int
mdcommit()
{
- int i;
- MdfdVec *v;
+ int i;
+ MdfdVec *v;
for (i = 0; i < CurFd; i++)
{
@@ -644,8 +644,8 @@ mdcommit()
int
mdabort()
{
- int i;
- MdfdVec *v;
+ int i;
+ MdfdVec *v;
for (i = 0; i < CurFd; i++)
{
@@ -666,10 +666,10 @@ static
int
_fdvec_alloc()
{
- MdfdVec *nvec;
- int fdvec,
- i;
- MemoryContext oldcxt;
+ MdfdVec *nvec;
+ int fdvec,
+ i;
+ MemoryContext oldcxt;
if (Md_Free >= 0) /* get from free list */
{
@@ -738,12 +738,12 @@ _fdvec_free(int fdvec)
static MdfdVec *
_mdfd_openseg(Relation reln, int segno, int oflags)
{
- MemoryContext oldcxt;
- MdfdVec *v;
- int fd;
- bool dofree;
- char *path,
- *fullpath;
+ MemoryContext oldcxt;
+ MdfdVec *v;
+ int fd;
+ bool dofree;
+ char *path,
+ *fullpath;
/* be sure we have enough space for the '.segno', if any */
path = relpath(RelationGetRelationName(reln)->data);
@@ -790,10 +790,10 @@ _mdfd_openseg(Relation reln, int segno, int oflags)
static MdfdVec *
_mdfd_getseg(Relation reln, int blkno, int oflag)
{
- MdfdVec *v;
- int segno;
- int fd;
- int i;
+ MdfdVec *v;
+ int segno;
+ int fd;
+ int i;
fd = RelationGetFile(reln);
if (fd < 0)
@@ -823,10 +823,10 @@ _mdfd_getseg(Relation reln, int blkno, int oflag)
return (v);
}
-static BlockNumber
+static BlockNumber
_mdnblocks(File file, Size blcksz)
{
- long len;
+ long len;
len = FileSeek(file, 0L, SEEK_END) - 1;
return ((BlockNumber) ((len < 0) ? 0 : 1 + len / blcksz));
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