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pgindent run. Make it all clean.

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This commit is contained in:
Bruce Momjian
2001-03-22 04:01:46 +00:00
parent 6cf8707b82
commit 9e1552607a
555 changed files with 32514 additions and 28110 deletions
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270
src/backend/postmaster/postmaster.c
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@@ -7,7 +7,7 @@
* message to setup a backend process.
*
* The postmaster also manages system-wide operations such as
* startup, shutdown, and periodic checkpoints. The postmaster
* startup, shutdown, and periodic checkpoints. The postmaster
* itself doesn't do those operations, mind you --- it just forks
* off a subprocess to do them at the right times. It also takes
* care of resetting the system if a backend crashes.
@@ -15,7 +15,7 @@
* The postmaster process creates the shared memory and semaphore
* pools during startup, but as a rule does not touch them itself.
* In particular, it is not a member of the PROC array of backends
* and so it cannot participate in lock-manager operations. Keeping
* and so it cannot participate in lock-manager operations. Keeping
* the postmaster away from shared memory operations makes it simpler
* and more reliable. The postmaster is almost always able to recover
* from crashes of individual backends by resetting shared memory;
@@ -28,7 +28,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.210 2001/03/14 17:58:46 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.211 2001/03/22 03:59:43 momjian Exp $
*
* NOTES
*
@@ -127,9 +127,9 @@ static Dllist *BackendList;
static Dllist *PortList;
/* The socket number we are listening for connections on */
int PostPortNumber;
char *UnixSocketDir;
char *VirtualHost;
int PostPortNumber;
char *UnixSocketDir;
char *VirtualHost;
/*
* MaxBackends is the actual limit on the number of backends we will
@@ -139,7 +139,7 @@ char *VirtualHost;
* memory area as well as cause the postmaster to grab more kernel
* semaphores, even if you never actually use that many backends.
*/
int MaxBackends = DEF_MAXBACKENDS;
int MaxBackends = DEF_MAXBACKENDS;
static char *progname = (char *) NULL;
@@ -158,10 +158,12 @@ static int ServerSock_INET = INVALID_SOCK; /* stream socket server */
#ifdef HAVE_UNIX_SOCKETS
static int ServerSock_UNIX = INVALID_SOCK; /* stream socket server */
#endif
#ifdef USE_SSL
static SSL_CTX *SSL_context = NULL; /* Global SSL context */
#endif
/*
@@ -179,16 +181,16 @@ static char ExtraOptions[MAXPGPATH];
static bool Reinit = true;
static int SendStop = false;
bool NetServer = false; /* listen on TCP/IP */
bool EnableSSL = false;
bool SilentMode = false; /* silent mode (-S) */
bool NetServer = false; /* listen on TCP/IP */
bool EnableSSL = false;
bool SilentMode = false; /* silent mode (-S) */
int CheckPointTimeout = 300;
int CheckPointTimeout = 300;
static pid_t StartupPID = 0,
ShutdownPID = 0,
CheckPointPID = 0;
static time_t checkpointed = 0;
static pid_t StartupPID = 0,
ShutdownPID = 0,
CheckPointPID = 0;
static time_t checkpointed = 0;
#define NoShutdown 0
#define SmartShutdown 1
@@ -196,7 +198,7 @@ static time_t checkpointed = 0;
static int Shutdown = NoShutdown;
static bool FatalError = false; /* T if recovering from backend crash */
static bool FatalError = false; /* T if recovering from backend crash */
/*
* State for assigning random salts and cancel keys.
@@ -262,7 +264,7 @@ checkDataDir(const char *checkdir)
fprintf(stderr, "%s does not know where to find the database system "
"data. You must specify the directory that contains the "
"database system either by specifying the -D invocation "
"option or by setting the PGDATA environment variable.\n\n",
"option or by setting the PGDATA environment variable.\n\n",
progname);
ExitPostmaster(2);
}
@@ -292,7 +294,7 @@ PostmasterMain(int argc, char *argv[])
int opt;
int status;
char original_extraoptions[MAXPGPATH];
char *potential_DataDir = NULL;
char *potential_DataDir = NULL;
IsUnderPostmaster = true; /* so that backends know this */
@@ -303,22 +305,22 @@ PostmasterMain(int argc, char *argv[])
real_argc = argc;
/*
* Catch standard options before doing much else. This even works
* on systems without getopt_long.
* Catch standard options before doing much else. This even works on
* systems without getopt_long.
*/
if (argc > 1)
{
if (strcmp(argv[1], "--help")==0 || strcmp(argv[1], "-?")==0)
if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0)
{
usage(progname);
ExitPostmaster(0);
}
if (strcmp(argv[1], "--version")==0 || strcmp(argv[1], "-V")==0)
if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
{
puts("postmaster (PostgreSQL) " PG_VERSION);
ExitPostmaster(0);
}
}
}
/*
@@ -351,27 +353,26 @@ PostmasterMain(int argc, char *argv[])
/*
* Options setup
*/
potential_DataDir = getenv("PGDATA"); /* default value */
potential_DataDir = getenv("PGDATA"); /* default value */
ResetAllOptions();
/*
* First we must scan for a -D argument to get the data dir. Then
* read the config file. Finally, scan all the other arguments.
* (Command line switches override config file.)
* First we must scan for a -D argument to get the data dir. Then read
* the config file. Finally, scan all the other arguments. (Command
* line switches override config file.)
*
* Note: The two lists of options must be exactly the same, even
* though perhaps the first one would only have to be "D:" with
* opterr turned off. But some versions of getopt (notably GNU)
* are going to arbitrarily permute some "non-options" (according
* to the local world view) which will result in some switches
* being associated with the wrong argument. Death and destruction
* will occur.
* Note: The two lists of options must be exactly the same, even though
* perhaps the first one would only have to be "D:" with opterr turned
* off. But some versions of getopt (notably GNU) are going to
* arbitrarily permute some "non-options" (according to the local
* world view) which will result in some switches being associated
* with the wrong argument. Death and destruction will occur.
*/
opterr = 1;
while ((opt = getopt(argc, argv, "A:a:B:b:c:D:d:Fh:ik:lm:MN:no:p:Ss-:")) != EOF)
{
switch(opt)
switch (opt)
{
case 'D':
potential_DataDir = optarg;
@@ -400,7 +401,7 @@ PostmasterMain(int argc, char *argv[])
IgnoreSystemIndexes(false);
optind = 1; /* start over */
optind = 1; /* start over */
#ifdef HAVE_INT_OPTRESET
optreset = 1;
#endif
@@ -449,7 +450,7 @@ PostmasterMain(int argc, char *argv[])
break;
#ifdef USE_SSL
case 'l':
EnableSSL = true;
EnableSSL = true;
break;
#endif
case 'm':
@@ -514,24 +515,25 @@ PostmasterMain(int argc, char *argv[])
break;
case 'c':
case '-':
{
char *name, *value;
ParseLongOption(optarg, &name, &value);
if (!value)
{
if (opt == '-')
elog(ERROR, "--%s requires argument", optarg);
else
elog(ERROR, "-c %s requires argument", optarg);
}
char *name,
*value;
SetConfigOption(name, value, PGC_POSTMASTER);
free(name);
if (value)
free(value);
break;
}
ParseLongOption(optarg, &name, &value);
if (!value)
{
if (opt == '-')
elog(ERROR, "--%s requires argument", optarg);
else
elog(ERROR, "-c %s requires argument", optarg);
}
SetConfigOption(name, value, PGC_POSTMASTER);
free(name);
if (value)
free(value);
break;
}
default:
/* shouldn't get here */
@@ -583,11 +585,11 @@ PostmasterMain(int argc, char *argv[])
*
* We want to do this before we try to grab the input sockets, because
* the data directory interlock is more reliable than the socket-file
* interlock (thanks to whoever decided to put socket files in /tmp :-().
* For the same reason, it's best to grab the TCP socket before the
* Unix socket.
* interlock (thanks to whoever decided to put socket files in /tmp
* :-(). For the same reason, it's best to grab the TCP socket before
* the Unix socket.
*/
if (! CreateDataDirLockFile(DataDir, true))
if (!CreateDataDirLockFile(DataDir, true))
ExitPostmaster(1);
/*
@@ -601,14 +603,14 @@ PostmasterMain(int argc, char *argv[])
ExitPostmaster(1);
}
if (EnableSSL)
InitSSL();
InitSSL();
#endif
if (NetServer)
{
status = StreamServerPort(AF_INET, VirtualHost,
(unsigned short) PostPortNumber, UnixSocketDir,
&ServerSock_INET);
(unsigned short) PostPortNumber, UnixSocketDir,
&ServerSock_INET);
if (status != STATUS_OK)
{
fprintf(stderr, "%s: cannot create INET stream port\n",
@@ -619,8 +621,8 @@ PostmasterMain(int argc, char *argv[])
#ifdef HAVE_UNIX_SOCKETS
status = StreamServerPort(AF_UNIX, VirtualHost,
(unsigned short) PostPortNumber, UnixSocketDir,
&ServerSock_UNIX);
(unsigned short) PostPortNumber, UnixSocketDir,
&ServerSock_UNIX);
if (status != STATUS_OK)
{
fprintf(stderr, "%s: cannot create UNIX stream port\n",
@@ -644,8 +646,9 @@ PostmasterMain(int argc, char *argv[])
PortList = DLNewList();
/*
* Record postmaster options. We delay this till now to avoid recording
* bogus options (eg, NBuffers too high for available memory).
* Record postmaster options. We delay this till now to avoid
* recording bogus options (eg, NBuffers too high for available
* memory).
*/
if (!CreateOptsFile(argc, argv))
ExitPostmaster(1);
@@ -656,13 +659,15 @@ PostmasterMain(int argc, char *argv[])
pqinitmask();
PG_SETMASK(&BlockSig);
pqsignal(SIGHUP, SIGHUP_handler); /* reread config file and have children do same */
pqsignal(SIGHUP, SIGHUP_handler); /* reread config file and have
* children do same */
pqsignal(SIGINT, pmdie); /* send SIGTERM and ShutdownDataBase */
pqsignal(SIGQUIT, pmdie); /* send SIGQUIT and die */
pqsignal(SIGTERM, pmdie); /* wait for children and ShutdownDataBase */
pqsignal(SIGALRM, SIG_IGN); /* ignored */
pqsignal(SIGPIPE, SIG_IGN); /* ignored */
pqsignal(SIGUSR1, schedule_checkpoint); /* start a background checkpoint */
pqsignal(SIGUSR1, schedule_checkpoint); /* start a background
* checkpoint */
pqsignal(SIGUSR2, pmdie); /* send SIGUSR2, don't die */
pqsignal(SIGCHLD, reaper); /* handle child termination */
pqsignal(SIGTTIN, SIG_IGN); /* ignored */
@@ -677,7 +682,8 @@ PostmasterMain(int argc, char *argv[])
status = ServerLoop();
/*
* ServerLoop probably shouldn't ever return, but if it does, close down.
* ServerLoop probably shouldn't ever return, but if it does, close
* down.
*/
ExitPostmaster(status != STATUS_OK);
@@ -749,7 +755,7 @@ usage(const char *progname)
printf(" -l enable SSL connections\n");
#endif
printf(" -N MAX-CONNECT maximum number of allowed connections (1..%d, default %d)\n",
MAXBACKENDS, DEF_MAXBACKENDS);
MAXBACKENDS, DEF_MAXBACKENDS);
printf(" -o OPTIONS pass 'OPTIONS' to each backend server\n");
printf(" -p PORT port number to listen on (default %d)\n", DEF_PGPORT);
printf(" -S silent mode (start in background without logging output)\n");
@@ -782,20 +788,24 @@ ServerLoop(void)
for (;;)
{
Port *port;
fd_set rmask,
wmask;
Port *port;
fd_set rmask,
wmask;
struct timeval *timeout = NULL;
struct timeval timeout_tv;
struct timeval timeout_tv;
if (CheckPointPID == 0 && checkpointed &&
Shutdown == NoShutdown && !FatalError)
{
time_t now = time(NULL);
time_t now = time(NULL);
if (CheckPointTimeout + checkpointed > now)
{
/* Not time for checkpoint yet, so set a timeout for select */
/*
* Not time for checkpoint yet, so set a timeout for
* select
*/
timeout_tv.tv_sec = CheckPointTimeout + checkpointed - now;
timeout_tv.tv_usec = 0;
timeout = &timeout_tv;
@@ -804,15 +814,18 @@ ServerLoop(void)
{
/* Time to make the checkpoint... */
CheckPointPID = CheckPointDataBase();
/* if fork failed, schedule another try at 0.1 normal delay */
/*
* if fork failed, schedule another try at 0.1 normal
* delay
*/
if (CheckPointPID == 0)
{
checkpointed = now - (9 * CheckPointTimeout) / 10;
}
}
}
#ifdef USE_SSL
/*
* If we are using SSL, there may be input data already read and
* pending in SSL's input buffers. If so, check for additional
@@ -955,19 +968,18 @@ ServerLoop(void)
if (status == STATUS_OK && port->pktInfo.state == Idle)
{
/*
* Can we accept a connection now?
*
* Even though readStartupPacket() already checked,
* we have to check again in case conditions changed
* while negotiating authentication.
* Even though readStartupPacket() already checked, we have
* to check again in case conditions changed while
* negotiating authentication.
*/
char *rejectMsg = canAcceptConnections();
char *rejectMsg = canAcceptConnections();
if (rejectMsg != NULL)
{
PacketSendError(&port->pktInfo, rejectMsg);
}
else
{
@@ -1008,7 +1020,7 @@ ServerLoop(void)
}
curr = next;
} /* loop over active ports */
} /* loop over active ports */
}
}
@@ -1087,20 +1099,20 @@ readStartupPacket(void *arg, PacketLen len, void *pkt)
if (send(port->sock, &SSLok, 1, 0) != 1)
{
perror("Failed to send SSL negotiation response");
return STATUS_ERROR; /* Close connection */
return STATUS_ERROR;/* Close connection */
}
#ifdef USE_SSL
if (SSLok == 'S')
{
if (!(port->ssl = SSL_new(SSL_context)) ||
!SSL_set_fd(port->ssl, port->sock) ||
SSL_accept(port->ssl) <= 0)
{
fprintf(stderr, "Failed to initialize SSL connection: %s, errno: %d (%s)\n",
ERR_reason_error_string(ERR_get_error()), errno, strerror(errno));
return STATUS_ERROR;
}
if (!(port->ssl = SSL_new(SSL_context)) ||
!SSL_set_fd(port->ssl, port->sock) ||
SSL_accept(port->ssl) <= 0)
{
fprintf(stderr, "Failed to initialize SSL connection: %s, errno: %d (%s)\n",
ERR_reason_error_string(ERR_get_error()), errno, strerror(errno));
return STATUS_ERROR;
}
}
#endif
/* ready for the normal startup packet */
@@ -1140,13 +1152,16 @@ readStartupPacket(void *arg, PacketLen len, void *pkt)
if (port->database[0] == '\0')
StrNCpy(port->database, si->user, sizeof(port->database));
/* Truncate given database and user names to length of a Postgres name. */
/*
* Truncate given database and user names to length of a Postgres
* name.
*/
/* This avoids lookup failures when overlength names are given. */
if ((int) sizeof(port->database) >= NAMEDATALEN)
port->database[NAMEDATALEN-1] = '\0';
port->database[NAMEDATALEN - 1] = '\0';
if ((int) sizeof(port->user) >= NAMEDATALEN)
port->user[NAMEDATALEN-1] = '\0';
port->user[NAMEDATALEN - 1] = '\0';
/* Check a user name was given. */
@@ -1158,8 +1173,8 @@ readStartupPacket(void *arg, PacketLen len, void *pkt)
}
/*
* If we're going to reject the connection due to database state,
* say so now instead of wasting cycles on an authentication exchange.
* If we're going to reject the connection due to database state, say
* so now instead of wasting cycles on an authentication exchange.
* (This also allows a pg_ping utility to be written.)
*/
rejectMsg = canAcceptConnections();
@@ -1358,13 +1373,15 @@ ClosePostmasterPorts(Port *myConn)
static void
reset_shared(unsigned short port)
{
/*
* Reset assignment of shared mem and semaphore IPC keys.
* Doing this means that in normal cases we'll assign the same keys
* on each "cycle of life", and thereby avoid leaving dead IPC objects
* Reset assignment of shared mem and semaphore IPC keys. Doing this
* means that in normal cases we'll assign the same keys on each
* "cycle of life", and thereby avoid leaving dead IPC objects
* floating around if the postmaster crashes and is restarted.
*/
IpcInitKeyAssignment(port);
/*
* Create or re-create shared memory and semaphores.
*/
@@ -1540,10 +1557,13 @@ static void
reaper(SIGNAL_ARGS)
{
int save_errno = errno;
#ifdef HAVE_WAITPID
int status; /* backend exit status */
#else
union wait status; /* backend exit status */
#endif
int exitstatus;
int pid; /* process id of dead backend */
@@ -1589,7 +1609,7 @@ reaper(SIGNAL_ARGS)
ExitPostmaster(1);
}
StartupPID = 0;
FatalError = false; /* done with recovery */
FatalError = false; /* done with recovery */
if (Shutdown > NoShutdown)
{
if (ShutdownPID > 0)
@@ -1618,7 +1638,8 @@ reaper(SIGNAL_ARGS)
{
/*
* Wait for all children exit, then reset shmem and StartupDataBase.
* Wait for all children exit, then reset shmem and
* StartupDataBase.
*/
if (DLGetHead(BackendList) || StartupPID > 0 || ShutdownPID > 0)
{
@@ -1735,14 +1756,15 @@ CleanupProc(int pid,
bp = (Backend *) DLE_VAL(curr);
if (bp->pid != pid)
{
/*
* This backend is still alive. Unless we did so already,
* tell it to commit hara-kiri.
*
* SIGQUIT is the special signal that says exit without proc_exit
* and let the user know what's going on. But if SendStop is set
* (-s on command line), then we send SIGSTOP instead, so that we
* can get core dumps from all backends by hand.
* and let the user know what's going on. But if SendStop is
* set (-s on command line), then we send SIGSTOP instead, so
* that we can get core dumps from all backends by hand.
*/
if (!FatalError)
{
@@ -1756,12 +1778,13 @@ CleanupProc(int pid,
}
else
{
/*
* Found entry for freshly-dead backend, so remove it.
*
* Don't call ProcRemove() here, since shmem may be corrupted!
* We are going to reinitialize shmem and semaphores anyway
* once all the children are dead, so no need for it.
* Don't call ProcRemove() here, since shmem may be corrupted! We
* are going to reinitialize shmem and semaphores anyway once
* all the children are dead, so no need for it.
*/
DLRemove(curr);
free(bp);
@@ -2278,7 +2301,7 @@ static pid_t
SSDataBase(int xlop)
{
pid_t pid;
Backend *bn;
Backend *bn;
fflush(stdout);
fflush(stderr);
@@ -2340,13 +2363,14 @@ SSDataBase(int xlop)
#endif
fprintf(stderr, "%s Data Base: fork failed: %s\n",
((xlop == BS_XLOG_STARTUP) ? "Startup" :
((xlop == BS_XLOG_STARTUP) ? "Startup" :
((xlop == BS_XLOG_CHECKPOINT) ? "CheckPoint" :
"Shutdown")),
strerror(errno));
/*
* fork failure is fatal during startup/shutdown, but there's
* no need to choke if a routine checkpoint fails.
* fork failure is fatal during startup/shutdown, but there's no
* need to choke if a routine checkpoint fails.
*/
if (xlop == BS_XLOG_CHECKPOINT)
return 0;
@@ -2354,9 +2378,9 @@ SSDataBase(int xlop)
}
/*
* The startup and shutdown processes are not considered normal backends,
* but the checkpoint process is. Checkpoint must be added to the list
* of backends.
* The startup and shutdown processes are not considered normal
* backends, but the checkpoint process is. Checkpoint must be added
* to the list of backends.
*/
if (xlop == BS_XLOG_CHECKPOINT)
{
@@ -2372,9 +2396,9 @@ SSDataBase(int xlop)
DLAddHead(BackendList, DLNewElem(bn));
/*
* Since this code is executed periodically, it's a fine
* place to do other actions that should happen every now
* and then on no particular schedule. Such as...
* Since this code is executed periodically, it's a fine place to
* do other actions that should happen every now and then on no
* particular schedule. Such as...
*/
TouchSocketLockFile();
}
@@ -2389,10 +2413,10 @@ SSDataBase(int xlop)
static bool
CreateOptsFile(int argc, char *argv[])
{
char fullprogname[MAXPGPATH];
char *filename;
FILE *fp;
unsigned i;
char fullprogname[MAXPGPATH];
char *filename;
FILE *fp;
unsigned i;
if (FindExec(fullprogname, argv[0], "postmaster") == -1)
return false;