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Pgindent run for 8.0.
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@ -7,7 +7,7 @@
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/storage/file/fd.c,v 1.111 2004/08/29 04:12:47 momjian Exp $
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* $PostgreSQL: pgsql/src/backend/storage/file/fd.c,v 1.112 2004/08/29 05:06:47 momjian Exp $
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*
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* NOTES:
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*
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@ -57,7 +57,7 @@
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* and other code that tries to open files without consulting fd.c. This
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* is the number left free. (While we can be pretty sure we won't get
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* EMFILE, there's never any guarantee that we won't get ENFILE due to
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* other processes chewing up FDs. So it's a bad idea to try to open files
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* other processes chewing up FDs. So it's a bad idea to try to open files
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* without consulting fd.c. Nonetheless we cannot control all code.)
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*
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* Because this is just a fixed setting, we are effectively assuming that
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@ -95,7 +95,7 @@ int max_files_per_process = 1000;
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* Note: the value of max_files_per_process is taken into account while
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* setting this variable, and so need not be tested separately.
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*/
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static int max_safe_fds = 32; /* default if not changed */
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static int max_safe_fds = 32; /* default if not changed */
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/* Debugging.... */
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@ -157,21 +157,24 @@ static int nfile = 0;
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*/
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#define MAX_ALLOCATED_DESCS 32
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typedef enum {
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typedef enum
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{
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AllocateDescFile,
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AllocateDescDir
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} AllocateDescKind;
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typedef struct {
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AllocateDescKind kind;
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union {
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FILE *file;
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DIR *dir;
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} desc;
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typedef struct
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{
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AllocateDescKind kind;
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union
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{
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FILE *file;
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DIR *dir;
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} desc;
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TransactionId create_xid;
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} AllocateDesc;
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static int numAllocatedDescs = 0;
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static int numAllocatedDescs = 0;
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static AllocateDesc allocatedDescs[MAX_ALLOCATED_DESCS];
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/*
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@ -280,7 +283,7 @@ count_usable_fds(int *usable_fds, int *already_open)
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/* dup until failure ... */
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for (;;)
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{
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int thisfd;
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int thisfd;
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thisfd = dup(0);
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if (thisfd < 0)
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@ -309,12 +312,12 @@ count_usable_fds(int *usable_fds, int *already_open)
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pfree(fd);
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/*
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* Return results. usable_fds is just the number of successful dups.
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* We assume that the system limit is highestfd+1 (remember 0 is a legal
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* FD number) and so already_open is highestfd+1 - usable_fds.
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* Return results. usable_fds is just the number of successful dups.
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* We assume that the system limit is highestfd+1 (remember 0 is a
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* legal FD number) and so already_open is highestfd+1 - usable_fds.
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*/
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*usable_fds = used;
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*already_open = highestfd+1 - used;
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*already_open = highestfd + 1 - used;
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}
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/*
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@ -328,11 +331,11 @@ set_max_safe_fds(void)
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int already_open;
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/*
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* We want to set max_safe_fds to
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* MIN(usable_fds, max_files_per_process - already_open)
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* less the slop factor for files that are opened without consulting
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* fd.c. This ensures that we won't exceed either max_files_per_process
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* or the experimentally-determined EMFILE limit.
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* We want to set max_safe_fds to MIN(usable_fds,
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* max_files_per_process - already_open) less the slop factor for
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* files that are opened without consulting fd.c. This ensures that
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* we won't exceed either max_files_per_process or the
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* experimentally-determined EMFILE limit.
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*/
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count_usable_fds(&usable_fds, &already_open);
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@ -1148,9 +1151,9 @@ AllocateFile(char *name, char *mode)
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/*
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* The test against MAX_ALLOCATED_DESCS prevents us from overflowing
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* allocatedFiles[]; the test against max_safe_fds prevents AllocateFile
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* from hogging every one of the available FDs, which'd lead to infinite
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* looping.
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* allocatedFiles[]; the test against max_safe_fds prevents
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* AllocateFile from hogging every one of the available FDs, which'd
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* lead to infinite looping.
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*/
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if (numAllocatedDescs >= MAX_ALLOCATED_DESCS ||
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numAllocatedDescs >= max_safe_fds - 1)
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@ -1192,7 +1195,7 @@ TryAgain:
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static int
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FreeDesc(AllocateDesc *desc)
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{
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int result;
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int result;
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/* Close the underlying object */
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switch (desc->kind)
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@ -1256,16 +1259,16 @@ FreeFile(FILE *file)
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DIR *
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AllocateDir(const char *dirname)
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{
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DIR *dir;
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DIR *dir;
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DO_DB(elog(LOG, "AllocateDir: Allocated %d (%s)",
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numAllocatedDescs, dirname));
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/*
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* The test against MAX_ALLOCATED_DESCS prevents us from overflowing
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* allocatedDescs[]; the test against max_safe_fds prevents AllocateDir
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* from hogging every one of the available FDs, which'd lead to infinite
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* looping.
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* allocatedDescs[]; the test against max_safe_fds prevents
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* AllocateDir from hogging every one of the available FDs, which'd
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* lead to infinite looping.
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*/
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if (numAllocatedDescs >= MAX_ALLOCATED_DESCS ||
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numAllocatedDescs >= max_safe_fds - 1)
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@ -1361,7 +1364,7 @@ closeAllVfds(void)
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void
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AtEOSubXact_Files(bool isCommit, TransactionId myXid, TransactionId parentXid)
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{
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Index i;
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Index i;
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if (SizeVfdCache > 0)
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{
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@ -1498,7 +1501,7 @@ RemovePgTempFiles(void)
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/* no PG_TEMP_FILES_DIR in DataDir in non EXEC_BACKEND case */
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|| strcmp(db_de->d_name, "..") == 0
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#endif
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)
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)
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continue;
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snprintf(temp_path, sizeof(temp_path),
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