Remove isamd. It's not been in use for a long time and isamb is better

[idzebra-moved-to-github.git] / bfile / mfile.c

diff --git a/bfile/mfile.c b/bfile/mfile.c
index 50de65a..a96820a 100644 (file)
--- a/bfile/mfile.c
+++ b/bfile/mfile.c
@@ -1,4 +1,4 @@
-/* $Id: mfile.c,v 1.50 2003-02-28 15:28:36 adam Exp $
+/* $Id: mfile.c,v 1.53 2004-08-04 08:35:22 adam Exp $
    Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003
    Index Data Aps
 
@@ -162,10 +162,13 @@ static int file_position(MFile mf, int pos, int offset)
             return -1;
         }
     }
-    if (mfile_seek(mf->files[c].fd, (ps = pos - off) * mf->blocksize + offset,
+    ps = pos - off;
+    if (mfile_seek(mf->files[c].fd, ps * (mfile_off_t) mf->blocksize + offset,
        SEEK_SET) < 0)
     {
        logf (LOG_WARN|LOG_ERRNO, "Failed to seek in %s", mf->files[c].path);
+        logf(LOG_WARN, "pos=%d off=%d blocksize=%d offset=%d",
+                       pos, off, mf->blocksize, offset);
        return -1;
     }
     mf->cur_file = c;
@@ -241,6 +244,7 @@ MFile_area mf_init(const char *name, const char *spec, const char *base)
                meta_f->next = ma->mfiles;
                meta_f->open = 0;
                meta_f->cur_file = -1;
+                meta_f->unlink_flag = 0;
                ma->mfiles = meta_f;
                strcpy(meta_f->name, metaname);
                part_f = &meta_f->files[0];
@@ -372,6 +376,7 @@ MFile mf_open(MFile_area ma, const char *name, int block_size, int wflag)
        mnew->files[0].top = -1;
        mnew->files[0].number = 0;
        mnew->files[0].fd = -1;
+        mnew->unlink_flag = 0;
        mnew->min_bytes_creat = MF_MIN_BLOCKS_CREAT * block_size;
        for (dp = ma->dirs; dp && dp->max_bytes >= 0 && dp->avail_bytes <
            mnew->min_bytes_creat; dp = dp->next);
@@ -427,6 +432,7 @@ int mf_close(MFile mf)
     logf (LOG_DEBUG, "mf_close(%s)", mf->name);
     assert(mf->open);
     for (i = 0; i < mf->no_files; i++)
+    {
        if (mf->files[i].fd >= 0)
        {
 #ifndef WIN32
@@ -435,6 +441,9 @@ int mf_close(MFile mf)
            close(mf->files[i].fd);
            mf->files[i].fd = -1;
        }
+        if (mf->unlink_flag)
+            unlink(mf->files[i].path);
+    }
     mf->open = 0;
     return 0;
 }
@@ -442,7 +451,7 @@ int mf_close(MFile mf)
 /*
  * Read one block from a metafile. Interface mirrors bfile.
  */
-int mf_read(MFile mf, int no, int offset, int nbytes, void *buf)
+int mf_read(MFile mf, zint no, int offset, int nbytes, void *buf)
 {
     int rd, toread;
 
@@ -477,7 +486,7 @@ int mf_read(MFile mf, int no, int offset, int nbytes, void *buf)
 /*
  * Write.
  */
-int mf_write(MFile mf, int no, int offset, int nbytes, const void *buf)
+int mf_write(MFile mf, zint no, int offset, int nbytes, const void *buf)
 {
     int ps, nblocks, towrite;
     mf_dir *dp;
@@ -545,7 +554,7 @@ int mf_write(MFile mf, int no, int offset, int nbytes, const void *buf)
            mf->files[mf->cur_file].blocks = 0;
            mf->files[mf->cur_file].bytes = 0;
            mf->files[mf->cur_file].fd = -1;
-           sprintf(tmp, "%s/%s-%d.mf", dp->name, mf->name,
+           sprintf(tmp, "%s/%s-" ZINT_FORMAT ".mf", dp->name, mf->name,
                mf->files[mf->cur_file].number);
            mf->files[mf->cur_file].path = xstrdup(tmp);
            mf->no_files++;
@@ -583,10 +592,14 @@ int mf_write(MFile mf, int no, int offset, int nbytes, const void *buf)
  */
 int mf_unlink(MFile mf)
 {
-    int i;
-
-    for (i = 0; i < mf->no_files; i++)
-        unlink (mf->files[i].path);
+    if (mf->open)
+        mf->unlink_flag = 1;
+    else
+    {
+        int i;
+        for (i = 0; i<mf->no_files; i++)
+            unlink(mf->files[i].path);
+    }
     return 0;
 }