/*
* Remove temporary files left over from a prior postmaster session
*
* This should be called during postmaster startup. It will forcibly
* remove any leftover files created by OpenTemporaryFile.
*
* NOTE: we could, but don't, call this during a post-backend-crash restart
* cycle. The argument for not doing it is that someone might want to examine
* the temp files for debugging purposes. This does however mean that
* OpenTemporaryFile had better allow for collision with an existing temp
* file name.
*/
void
RemovePgTempFiles(void)
{
char temp_path[MAXPGPATH];
DIR *spc_dir;
struct dirent *spc_de;
/*
* First process temp files in pg_default ($PGDATA/base)
*/
snprintf(temp_path, sizeof(temp_path), "base/%s", PG_TEMP_FILES_DIR);
RemovePgTempFilesInDir(temp_path);
/*
* Cycle through temp directories for all non-default tablespaces.
*/
spc_dir = AllocateDir("pg_tblspc");
while ((spc_de = ReadDir(spc_dir, "pg_tblspc")) != NULL)
{
if (strcmp(spc_de->d_name, ".") == 0 ||
strcmp(spc_de->d_name, "..") == 0)
continue;
snprintf(temp_path, sizeof(temp_path), "pg_tblspc/%s/%s",
spc_de->d_name, PG_TEMP_FILES_DIR);
RemovePgTempFilesInDir(temp_path);
}
FreeDir(spc_dir);
/*
* In EXEC_BACKEND case there is a pgsql_tmp directory at the top level of
* DataDir as well.
*/
#ifdef EXEC_BACKEND
RemovePgTempFilesInDir(PG_TEMP_FILES_DIR);
#endif
}
/*
* Remove temporary files left over from a prior postmaster session
*
* This should be called during postmaster startup. It will forcibly
* remove any leftover files created by OpenTemporaryFile.
*
* We also call this during the post-backend-crash restart cycle
* (postmaster reset).
*/
void
RemovePgTempFiles(void)
{
char temp_path[MAXPGPATH];
DIR *db_dir;
struct dirent *db_de;
ereport(LOG,
(errmsg("removing all temporary files")));
/*
* Cycle through pgsql_tmp directories for all databases and remove old
* temp files.
*/
db_dir = AllocateDir("base");
while ((db_de = ReadDir(db_dir, "base")) != NULL)
{
if (strcmp(db_de->d_name, ".") == 0 ||
strcmp(db_de->d_name, "..") == 0)
continue;
snprintf(temp_path, sizeof(temp_path), "base/%s/%s",
db_de->d_name, PG_TEMP_FILES_DIR);
RemovePgTempFilesInDir(temp_path);
}
FreeDir(db_dir);
/*
* In EXEC_BACKEND case there is a pgsql_tmp directory at the top level of
* DataDir as well.
*/
#ifdef EXEC_BACKEND
RemovePgTempFilesInDir(PG_TEMP_FILES_DIR);
#endif
}
