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Commitec6feaa

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Under Win32, stat() returns an st_ino field, but it has no meaning (on
Win2K, and possibly all Win32 variants, it is always 0). This causes anumber of problems in the dfmgr.c logic, which basically all revolvearound the fact that *any* two files will appear to have the same inode.Claudio Natoli
1 parent51b363e commitec6feaa

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‎src/backend/utils/fmgr/dfmgr.c

Lines changed: 10 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/utils/fmgr/dfmgr.c,v 1.69 2004/01/19 02:06:41 tgl Exp $
11+
* $PostgreSQL: pgsql/src/backend/utils/fmgr/dfmgr.c,v 1.70 2004/02/17 03:35:57 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
@@ -30,7 +30,9 @@ typedef struct df_files
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{
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structdf_files*next;/* List link */
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dev_tdevice;/* Device file is on */
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#ifndefWIN32/* ensures we never again depend on this under win32 */
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ino_tinode;/* Inode number of file */
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#endif
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void*handle;/* a handle for pg_dl* functions */
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charfilename[1];/* Full pathname of file */
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@@ -43,7 +45,12 @@ typedef struct df_files
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staticDynamicFileList*file_list=NULL;
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staticDynamicFileList*file_tail=NULL;
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48+
/* stat() call under Win32 returns an st_ino field, but it has no meaning */
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#ifndefWIN32
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#defineSAME_INODE(A,B) ((A).st_ino == (B).inode && (A).st_dev == (B).device)
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#else
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#defineSAME_INODE(A,B) false
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#endif
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char*Dynamic_library_path;
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@@ -121,7 +128,9 @@ load_external_function(char *filename, char *funcname,
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MemSet((char*)file_scanner,0,sizeof(DynamicFileList));
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strcpy(file_scanner->filename,fullname);
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file_scanner->device=stat_buf.st_dev;
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#ifndefWIN32
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file_scanner->inode=stat_buf.st_ino;
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#endif
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file_scanner->next=NULL;
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file_scanner->handle=pg_dlopen(fullname);

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