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6b534f3c33
and FreeDir routines modeled on the existing AllocateFile/FreeFile. Like the latter, these routines will avoid failing on EMFILE/ENFILE conditions whenever possible, and will prevent leakage of directory descriptors if an elog() occurs while one is open. Also, reduce PANIC to ERROR in MoveOfflineLogs() --- this is not critical code and there is no reason to force a DB restart on failure. All per recent trouble report from Olivier Hubaut.
66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
/*
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* While "xcopy /e /i /q" works fine for copying directories, on Windows XP
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* it requires a Window handle which prevents it from working when invoked
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* as a service.
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*
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* $Header: /cvsroot/pgsql/src/port/Attic/copydir.c,v 1.5.2.1 2004/02/23 23:03:43 tgl Exp $
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*/
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#include "postgres.h"
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#include "storage/fd.h"
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#undef mkdir /* no reason to use that macro because we
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* ignore the 2nd arg */
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/*
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* copydir: copy a directory (we only need to go one level deep)
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*
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* Return 0 on success, nonzero on failure.
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*
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* NB: do not elog(ERROR) on failure. Return to caller so it can try to
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* clean up.
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*/
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int
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copydir(char *fromdir, char *todir)
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{
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DIR *xldir;
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struct dirent *xlde;
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char fromfl[MAXPGPATH];
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char tofl[MAXPGPATH];
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if (mkdir(todir) != 0)
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{
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ereport(WARNING,
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(errcode_for_file_access(),
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errmsg("could not create directory \"%s\": %m", todir)));
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return -1;
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}
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xldir = AllocateDir(fromdir);
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if (xldir == NULL)
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{
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ereport(WARNING,
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(errcode_for_file_access(),
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errmsg("could not open directory \"%s\": %m", fromdir)));
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return -1;
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}
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while ((xlde = readdir(xldir)) != NULL)
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{
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snprintf(fromfl, MAXPGPATH, "%s/%s", fromdir, xlde->d_name);
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snprintf(tofl, MAXPGPATH, "%s/%s", todir, xlde->d_name);
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if (CopyFile(fromfl, tofl, TRUE) < 0)
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{
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ereport(WARNING,
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(errcode_for_file_access(),
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errmsg("could not copy file \"%s\": %m", fromfl)));
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FreeDir(xldir);
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return -1;
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}
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}
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FreeDir(xldir);
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return 0;
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}
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