Mercurial > noffle

annotate src/lock.c @ 393:e113df4af08b noffle

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
[svn] added debconf-2.0 dependency option
author godisch
date Sat, 24 May 2003 07:30:38 +0100
parents 3477050e8d10
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
1 /*
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
2 lock.c
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
3
271
3477050e8d10 [svn] * src/client.c,src/fetch.c,src/lock.c.src/protocol.c,src/util.h,src/util.c:
bears
parents: 197
diff changeset
4 $Id: lock.c 403 2002-11-10 11:32:17Z bears $
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
5 */
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
6
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
7 #if HAVE_CONFIG_H
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
8 #include <config.h>
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
9 #endif
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
10
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
11 #include <stdio.h>
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
12 #include <errno.h>
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
13 #include <ctype.h>
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
14 #include <sys/types.h>
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
15 #include <sys/stat.h>
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
16 #include <fcntl.h>
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
17 #include <signal.h>
54
125d79c9e586 [svn] * src/client.c, src/configfile.c, src/content.c, src/control.c,
uh1763
parents: 43
diff changeset
18
125d79c9e586 [svn] * src/client.c, src/configfile.c, src/content.c, src/control.c,
uh1763
parents: 43
diff changeset
19 #if TIME_WITH_SYS_TIME
125d79c9e586 [svn] * src/client.c, src/configfile.c, src/content.c, src/control.c,
uh1763
parents: 43
diff changeset
20 #include <sys/time.h>
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
21 #include <time.h>
54
125d79c9e586 [svn] * src/client.c, src/configfile.c, src/content.c, src/control.c,
uh1763
parents: 43
diff changeset
22 #else
125d79c9e586 [svn] * src/client.c, src/configfile.c, src/content.c, src/control.c,
uh1763
parents: 43
diff changeset
23 #if HAVE_SYS_TIME_H
125d79c9e586 [svn] * src/client.c, src/configfile.c, src/content.c, src/control.c,
uh1763
parents: 43
diff changeset
24 #include <sys/time.h>
125d79c9e586 [svn] * src/client.c, src/configfile.c, src/content.c, src/control.c,
uh1763
parents: 43
diff changeset
25 #else
125d79c9e586 [svn] * src/client.c, src/configfile.c, src/content.c, src/control.c,
uh1763
parents: 43
diff changeset
26 #include <time.h>
125d79c9e586 [svn] * src/client.c, src/configfile.c, src/content.c, src/control.c,
uh1763
parents: 43
diff changeset
27 #endif
125d79c9e586 [svn] * src/client.c, src/configfile.c, src/content.c, src/control.c,
uh1763
parents: 43
diff changeset
28 #endif
125d79c9e586 [svn] * src/client.c, src/configfile.c, src/content.c, src/control.c,
uh1763
parents: 43
diff changeset
29
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
30 #include <unistd.h>
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
31 #include "configfile.h"
167
7ba337dafb2c [svn] * TODO,content.c,lock.c,server.c,server.h: Remove bug notice re:
bears
parents: 165
diff changeset
32 #include "content.h"
197
24d4cd032da5 [svn] * AUTHORS,INSTALL,NEWS,README,TODO,docs/NOTES,src/client.c,src/protocol.c,
bears
parents: 185
diff changeset
33 #include "lock.h"
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
34 #include "log.h"
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
35 #include "database.h"
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
36 #include "group.h"
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
37 #include "request.h"
54
125d79c9e586 [svn] * src/client.c, src/configfile.c, src/content.c, src/control.c,
uh1763
parents: 43
diff changeset
38 #include "portable.h"
167
7ba337dafb2c [svn] * TODO,content.c,lock.c,server.c,server.h: Remove bug notice re:
bears
parents: 165
diff changeset
39 #include "server.h"
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
40 #include "util.h"
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
41
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
42 struct Lock
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
43 {
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
44 const char *name;
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
45 int lockFd;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
46 Str lockFile;
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
47 Bool doLazyLocking;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
48 volatile Bool lazyClose;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
49 volatile Bool lazyLockBusy;
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
50 };
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
51
167
7ba337dafb2c [svn] * TODO,content.c,lock.c,server.c,server.h: Remove bug notice re:
bears
parents: 165
diff changeset
52 static struct Lock globalLock = { "global", -1, "", TRUE, FALSE, FALSE };
7ba337dafb2c [svn] * TODO,content.c,lock.c,server.c,server.h: Remove bug notice re:
bears
parents: 165
diff changeset
53 static struct Lock fetchLock = { "fetch", -1, "", FALSE, FALSE, FALSE };
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
54
271
3477050e8d10 [svn] * src/client.c,src/fetch.c,src/lock.c.src/protocol.c,src/util.h,src/util.c:
bears
parents: 197
diff changeset
55 static SignalHandler oldHandler = NULL;
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
56
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
57 /* Block/unblock SIGUSR1. */
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
58 static Bool
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
59 blockSignal( Bool block )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
60 {
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
61 sigset_t sigs;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
62
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
63 sigemptyset(&sigs);
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
64 sigaddset(&sigs, SIGUSR1);
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
65
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
66 for(;;)
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
67 {
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
68 if ( sigprocmask( block ? SIG_BLOCK : SIG_UNBLOCK, &sigs, NULL ) != 0 )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
69 {
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
70 if ( errno != EINTR )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
71 {
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
72 Log_err( "Can't block/unblock signal" );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
73 return FALSE;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
74 }
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
75 }
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
76 else
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
77 return TRUE;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
78 }
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
79 /* NOTREACHED */
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
80 }
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
81
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
82 /* Check the global lock held. */
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
83 static Bool
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
84 gotLock( struct Lock *lock )
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
85 {
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
86 return ( lock->lockFd != -1 );
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
87 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
88
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
89 static void
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
90 lockWaitAlarm( int sig )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
91 {
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
92 UNUSED( sig );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
93
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
94 return;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
95 }
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
96
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
97 static Bool
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
98 waitLock( struct Lock *lock, enum LockRequestWait wait )
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
99 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
100 int fd;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
101 struct flock l;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
102
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
103 ASSERT( ! gotLock( lock ) );
185
fed1334d766b [svn] * src/client.c: Change variable only used on constant to 'const'.
bears
parents: 183
diff changeset
104 Log_dbg( LOG_DBG_NEWSBASE, "Waiting for lock %s ...", lock->name );
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
105 if ( lock->lockFile[ 0 ] == '\0' )
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
106 snprintf( lock->lockFile, MAXCHAR, "%s/lock/%s",
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
107 Cfg_spoolDir(), lock->name );
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
108 if ( ( fd = open( lock->lockFile, O_WRONLY | O_CREAT, 0644 ) ) < 0 )
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
109 {
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
110 Log_err( "Cannot open %s (%s)", lock->lockFile, strerror( errno ) );
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
111 return FALSE;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
112 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
113 l.l_type = F_WRLCK;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
114 l.l_start = 0;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
115 l.l_whence = SEEK_SET;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
116 l.l_len = 0;
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
117 if ( wait == LOCK_WAIT )
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
118 {
271
3477050e8d10 [svn] * src/client.c,src/fetch.c,src/lock.c.src/protocol.c,src/util.h,src/util.c:
bears
parents: 197
diff changeset
119 SignalHandler oldAlarmHandler;
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
120 unsigned oldAlarm;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
121
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
122 oldAlarmHandler = Utl_installSignalHandler( SIGALRM, lockWaitAlarm );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
123 oldAlarm = alarm( 1 );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
124 for(;;)
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
125 {
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
126 alarm( 1 );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
127 if ( fcntl( fd, F_SETLKW, &l ) < 0 )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
128 if ( errno != EINTR )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
129 {
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
130 Utl_installSignalHandler( SIGALRM, oldAlarmHandler );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
131 alarm( oldAlarm );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
132 Log_err( "Cannot lock %s: %s", lock->lockFile,
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
133 strerror( errno ) );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
134 close( lock->lockFd );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
135 return FALSE;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
136 }
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
137 else
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
138 {
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
139 /* Send SIGUSR1 to the process holding the lock. */
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
140 if ( fcntl( fd, F_GETLK, &l) == 0 && l.l_type != F_UNLCK )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
141 if ( kill( l.l_pid, SIGUSR1 ) < 0 )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
142 Log_err( "Can't signal process %d: %s", l.l_pid,
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
143 strerror( errno ) );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
144 }
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
145 else
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
146 break;
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
147 }
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
148 Utl_installSignalHandler( SIGALRM, oldAlarmHandler );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
149 alarm( oldAlarm );
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
150 }
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
151 else
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
152 {
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
153 if ( fcntl( fd, F_SETLK, &l ) < 0 )
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
154 {
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
155 close( lock->lockFd );
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
156 return FALSE;
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
157 }
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
158 }
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
159
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
160 lock->lockFd = fd;
185
fed1334d766b [svn] * src/client.c: Change variable only used on constant to 'const'.
bears
parents: 183
diff changeset
161 Log_dbg( LOG_DBG_NEWSBASE, "Lock successful" );
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
162 return TRUE;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
163 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
164
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
165 static void
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
166 releaseLock( struct Lock *lock )
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
167 {
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
168 struct flock l;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
169
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
170 ASSERT( gotLock( lock ) );
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
171 l.l_type = F_UNLCK;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
172 l.l_start = 0;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
173 l.l_whence = SEEK_SET;
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
174 l.l_len = 0;
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
175 if ( fcntl( lock->lockFd, F_SETLK, &l ) < 0 )
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
176 Log_err( "Cannot release %s: %s", lock->lockFile,
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
177 strerror( errno ) );
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
178 close( lock->lockFd );
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
179 lock->lockFd = -1;
185
fed1334d766b [svn] * src/client.c: Change variable only used on constant to 'const'.
bears
parents: 183
diff changeset
180 Log_dbg( LOG_DBG_NEWSBASE, "Releasing lock" );
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
181 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
182
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
183 static Bool
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
184 openDatabases( void )
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
185 {
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
186 globalLock.lazyClose = FALSE;
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
187 if ( ! waitLock( &globalLock, LOCK_WAIT ) )
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
188 {
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
189 Log_err( "Could not get write lock" );
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
190 return FALSE;
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
191 }
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
192 if ( ! Db_open() )
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
193 {
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
194 Log_err( "Could not open database" );
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
195 releaseLock( &globalLock );
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
196 return FALSE;
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
197 }
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
198 if ( ! Grp_open() )
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
199 {
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
200 Log_err( "Could not open groupinfo" );
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
201 Db_close();
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
202 releaseLock( &globalLock );
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
203 return FALSE;
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
204 }
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
205 if ( ! Req_open() )
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
206 {
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
207 Log_err( "Could not initialize request database" );
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
208 Grp_close();
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
209 Db_close();
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
210 releaseLock( &globalLock );
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
211 return FALSE;
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
212 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
213
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
214 globalLock.lazyClose = globalLock.doLazyLocking;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
215 globalLock.lazyLockBusy = TRUE;
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
216 return TRUE;
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
217 }
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
218
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
219 static void
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
220 closeDatabases( void )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
221 {
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
222 Grp_close();
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
223 Db_close();
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
224 Req_close();
167
7ba337dafb2c [svn] * TODO,content.c,lock.c,server.c,server.h: Remove bug notice re:
bears
parents: 165
diff changeset
225 Server_flushCache();
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
226 releaseLock( &globalLock );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
227 globalLock.lazyLockBusy = FALSE;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
228 globalLock.lazyClose = FALSE;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
229 }
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
230
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
231 static void
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
232 lockSignal( int sig )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
233 {
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
234 UNUSED( sig );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
235
183
c912e8288164 [svn] * src/client.c: Only bail out of fetching multiple articles if the
bears
parents: 167
diff changeset
236 /*
c912e8288164 [svn] * src/client.c: Only bail out of fetching multiple articles if the
bears
parents: 167
diff changeset
237 * If we hold the lock right now, flag it to be released next close.
c912e8288164 [svn] * src/client.c: Only bail out of fetching multiple articles if the
bears
parents: 167
diff changeset
238 * Otherwise, if we are holding it lazily, release it.
c912e8288164 [svn] * src/client.c: Only bail out of fetching multiple articles if the
bears
parents: 167
diff changeset
239 */
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
240 if ( globalLock.lazyLockBusy )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
241 globalLock.lazyClose = FALSE;
183
c912e8288164 [svn] * src/client.c: Only bail out of fetching multiple articles if the
bears
parents: 167
diff changeset
242 else if ( gotLock( &globalLock ) )
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
243 closeDatabases();
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
244 return;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
245 }
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
246
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
247 /* Open all databases and set global lock. */
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
248 Bool
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
249 Lock_openDatabases( void )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
250 {
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
251 Bool res;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
252
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
253 /* First time - need to initialise signal handler? */
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
254 if ( oldHandler == NULL )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
255 oldHandler = Utl_installSignalHandler( SIGUSR1, lockSignal );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
256
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
257 if ( ! blockSignal( TRUE ) )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
258 return FALSE;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
259
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
260 if ( ! globalLock.lazyClose )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
261 res = openDatabases();
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
262 else
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
263 res = TRUE;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
264
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
265 globalLock.lazyLockBusy = res;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
266
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
267 if ( ! blockSignal( FALSE ) )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
268 return FALSE;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
269
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
270 return res;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
271 }
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
272
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
273 /* Close all databases and release global lock. */
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
274 void
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
275 Lock_closeDatabases( void )
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
276 {
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
277 blockSignal( TRUE );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
278
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
279 if ( ! globalLock.lazyClose )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
280 closeDatabases();
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
281 else
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
282 globalLock.lazyLockBusy = FALSE;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
283
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
284 blockSignal( FALSE );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
285 }
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
286
183
c912e8288164 [svn] * src/client.c: Only bail out of fetching multiple articles if the
bears
parents: 167
diff changeset
287 /* Sync all databases to disc. Maintain global lock status. */
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
288 void
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
289 Lock_syncDatabases( void )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
290 {
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
291 Bool wasOpen;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
292
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
293 if ( gotLock( &globalLock ) )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
294 {
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
295 blockSignal( TRUE );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
296
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
297 wasOpen = globalLock.lazyLockBusy;
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
298 closeDatabases();
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
299 if ( wasOpen )
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
300 openDatabases();
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
301
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
302 blockSignal( FALSE );
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
303 }
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
304 }
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
305
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
306 /* Check the global lock held. */
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
307 Bool
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
308 Lock_gotLock( void )
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
309 {
165
8ea6b5ddc5a5 [svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release
bears
parents: 127
diff changeset
310 return globalLock.lazyLockBusy;
43
2842f50feb55 [svn] * client.c, client.h, common.h, config.c, config.h, content.c, content.h,
uh1763
parents:
diff changeset
311 }
127
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
312
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
313 /* Get fetch lock. */
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
314 Bool
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
315 Lock_getFetchLock( enum LockRequestWait wait )
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
316 {
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
317 return waitLock( &fetchLock, wait );
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
318 }
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
319
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
320 /* Release fetch lock. */
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
321 void
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
322 Lock_releaseFetchLock( void )
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
323 {
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
324 releaseLock( &fetchLock );
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
325 }
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
326
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
327 /* Check the fetch lock held. */
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
328 Bool
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
329 Lock_fetchLock( void )
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
330 {
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
331 return gotLock( &fetchLock );
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
332 }
3c71e28c8eef [svn] Release-1-0 mergedocs/NOTES
bears
parents: 54
diff changeset
333