| 1 |
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| 2 | DIM version 20r2 Release Notes
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| 3 |
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| 4 | Notes 1 and 2 for Unix Users only
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| 5 | NOTE 1: In order to "make" DIM two environment variables should be set:
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| 6 | OS = one of {HP-UX, AIX, OSF1, Solaris, SunOS, LynxOS, Linux, Darwin}
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| 7 | DIMDIR = the path name of DIM's top level directory
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| 8 | The user should then go to DIM's top level directory and do:
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| 9 | > source .setup
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| 10 | > gmake all
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| 11 | Or, if there is no support for C++ on the machine:
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| 12 | > gmake CPP=no all
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| 13 |
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| 14 | NOTE 2: The Name Server (Dns), DID, servers and clients (if running in
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| 15 | background) should be started whith the output redirected to a
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| 16 | logfile ex:
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| 17 | Dns </dev/null >& dns.log &
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| 18 |
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| 19 | NOTE 3: The Version Number service provided by servers is now set to 2002.
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| 20 |
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| 21 | 07/11/2012
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| 22 | Changes for version 2002:
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| 23 | - Still problems with size=0 "no link" parameters - hopefully fixed.
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| 24 |
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| 25 |
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| 26 | 07/11/2012
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| 27 | Changes for version 2001:
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| 28 | - First official release containing the Windows 64 bits fix.
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| 29 | - The changes in version v19r35 specifying the behaviour when giving a null pointer and size 0 as
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| 30 | "no link" parameters only worked well in "C", not in C++ callbacks - fixed.
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| 31 |
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| 32 |
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| 33 | 04/10/2012
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| 34 | Changes for version 19.39:
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| 35 | - Unfortunately Windows, unlike Linux, does not use LP64 convention for 64 bits,
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| 36 | i.e. the type long is a 32 bit variable (?!?!?!)
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| 37 | So created a dim_long type which can always hold a pointer
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| 38 |
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| 39 |
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| 40 | 09/08/2012
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| 41 | Changes for version 19.38:
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| 42 | - The timeout used by clients and servers to try to reconnect to a DNS was supposed to be random,
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| 43 | to avoid all processes retrying at the same time, but it wasn't - fixed.
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| 44 |
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| 45 |
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| 46 | 27/06/2012
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| 47 | Changes for version 19.37:
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| 48 | - DIM DNS crashed for servers with a task name bigger than 80 characters - Fixed.
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| 49 |
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| 50 |
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| 51 | 22/06/2012
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| 52 | Changes for version 19.36:
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| 53 | - The internal "DIS_DNS/KILL_SERVERS" command can now be used to pass a user defined exit_code to
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| 54 | the servers. The servers will get this exit_code in their exit_handler.
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| 55 | Although the exit_code passed to the "DIS_DNS/KILL_SERVERS" command is an integer, only the lower
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| 56 | 16 bits can be used, i.e. only these bits are passed to the servers.
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| 57 |
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| 58 |
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| 59 | 24/05/2012
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| 60 | Changes for version 19.35:
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| 61 | - Fixed the DimInfo() default constructor, now if the default constructor is called, it doesn't cause the
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| 62 | destructor to crash anymore.
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| 63 | - Made available to DimInfo, DimStampedInfo, DimUpdatedInfo and DimCurrentInfo the method:
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| 64 | - void subscribe(char *name, void *nolink, int nolinksize, int time, DimInfoHandler *handler)
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| 65 | Like this the default constructor can be called and then this method called later to subscribe
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| 66 | whenever needed.
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| 67 | - The behaviour of giving a null pointer and size 0 as "no link" parameters was not completely
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| 68 | defined. The user could get back either a null pointer or an "invalid" pointer in the callbacks.
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| 69 | This is now well-defined:
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| 70 | - If null pointer and size 0 is used at subscribe, the user will get null pointer and size 0 in the callback.
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| 71 | - If a negative size is passed at subscribe the callback is not called at all.
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| 72 |
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| 73 |
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| 74 | 03/05/2012
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| 75 | Changes for version 19.34:
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| 76 | - Changed back to dna_write_nowait() the message that the server sends to the client when removing
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| 77 | a service. This was causing clients not to reconnect ever again when the server removed services.
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| 78 | (because the client would get the info much before the DNS, so it would keep trying to reconnect
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| 79 | and failing even though the service or even the server didn't exist anymore, without asking the DNS)
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| 80 | - Changed the client in order to avoid the behaviour above, i.e. if sending the service request fails it
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| 81 | asks the DNS again.
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| 82 |
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| 83 |
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| 84 | 23/04/2012
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| 85 | Changes for version 19.33:
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| 86 | - A bug was introduced in v19r30. When trying to retry immediately, a dtq_start_timer(0)
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| 87 | was used (like for dna_write). This is not possible because the callback is not protected
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| 88 | by a DIM lock. Fixed. (in v19r32)
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| 89 | - Small tidy up in dic.c and protecting the move_to_xxx functions.
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| 90 | - When a server received an unsubscribe from the last subscribed service of a client it was closing the
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| 91 | connection to the client, this is not good because there could be commands being sent. In any case
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| 92 | it should be up to the client to close the connection - Fixed.
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| 93 | - dim_send_command now accepts a "-i" argument to send integer data (default is string)
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| 94 |
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| 95 |
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| 96 | 30/03/2012
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| 97 | Changes for version 19.31:
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| 98 | - changed dna_write to dna_write_nowait for servers when removing a service and for clients
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| 99 | when releasing and subscribing to a service. Dna_write cannot be used for the same connection
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| 100 | as dna_write_nowait as it will mingle the packets.
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| 101 | - Removed more compiler warnings.
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| 102 |
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| 103 |
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| 104 | 14/03/2012
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| 105 | Changes for version 19.30:
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| 106 | - Sometimes when trying to open a connection to a server the client could backoff for too
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| 107 | long (10 seconds), now it will retry immediately and then at increasing intervals.
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| 108 | - dim_stop() would sometimes not properly stop all threads if a new connection was received
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| 109 | in the mean time.
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| 110 | - The DimServerDns destructor could crash, fixed.
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| 111 | - Removed some compiler warnings about variables set but not used.
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| 112 | - Two new functions available:
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| 113 | - dim_set_listen_backlog(int size)
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| 114 | - int dim_get_listen_backlog()
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| 115 | - The DNS will set the listen_backlog to 1024 at startup, but the OS will truncate it to
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| 116 | a maximum limit (available in /proc/sys/net/core/somaxconn, linux default=128),
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| 117 | while for servers the constant SOMAXCONN is used.
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| 118 |
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| 119 |
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| 120 | 06/02/2012
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| 121 | Changes for version 19.28:
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| 122 | - Added more log messages when a "Write Timeout" occurs to know where it originated.
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| 123 | - A server could sometimes not release the connection in case of a "Write Timeout", and
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| 124 | then keep on timing out for each message on this connection - fixed.
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| 125 |
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| 126 |
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| 127 | 19/01/2012
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| 128 | Changes for version 19.27:
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| 129 | - Updated the DIM Makefiles for MacOSX (Darwin)
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| 130 | - Added New possibilities to change DIM timeouts:
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| 131 | - 2 New Environment variables:
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| 132 | - DIM_WRITE_TMOUT (default: 5)
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| 133 | - DIM_KEEPALIVE_TMOUT (default: 15)
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| 134 | - Same functionality as the functions:
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| 135 | - dim_set_write_timeout(int secs)
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| 136 | - int dim_get_write_timeout()
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| 137 | - dim_set_keepalive_timeout(int secs) //new
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| 138 | - int dim_get_keepalive_timeout() //new
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| 139 | - The functions have precedence over the environment variables.
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| 140 | - The server per client exit_handler functionality
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| 141 | (provided by dis_add_client_exit_handler()/dis_set_client_exit_handler())
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| 142 | wan not always working correctly (in case of write timeouts) - fixed.
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| 143 | - Changed the reporting of "Write Tiemout":
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| 144 | - Used to report only:
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| 145 | - "ERROR: Write Timeout, disconnecting from..."
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| 146 | - Now reports:
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| 147 | - "WARNING: Write Timeout, writing to ..."
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| 148 | - If it disconnects: "ERROR: Write Timeout, disconnecting from ..."
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| 149 | - If it reconnects later: "INFO: Re-connected to ..."
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| 150 |
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| 151 |
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| 152 | 14/09/2011
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| 153 | Changes for version 19.26:
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| 154 | - In the notes for version 19.08 there is the following:
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| 155 | - Since version v18r4 where dim_wait() was modified, dim_wait could hang in windows if
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| 156 | the wake_up event was triggered before dim_wait was called. Could affect smi++. Fixed.
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| 157 | - Amasingly enough this seems also to be the case for Linux, dim_wait could hang until there
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| 158 | was some new DIM activity, normally some timer firing... Fixed.
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| 159 | - The Linux DID now accepts an extra parameter: -dns=<dns_node_name>
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| 160 |
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| 161 | 01/09/2011
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| 162 | Changes for version 19.25:
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| 163 | - When a Client was releasing a service "at the same time" as the server was deleting the service,
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| 164 | The Connection could be released by mistake - fixed.
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| 165 | - The SERVICE_LIST service could be updated with an empty string if there were two consecutive
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| 166 | dis_start_serving() - fixed.
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| 167 |
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| 168 |
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| 169 | 08/08/2011
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| 170 | Changes for version 19.24:
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| 171 | - The funtion DimInfo::getFormat() never return the correct format of a service, if the first time
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| 172 | it was called, the service was not available, i.e. when called inside a "no_link" callback - Fixed.
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| 173 | - Deleting the last service of a server or stopping a server could generate "Invalid Service Id"
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| 174 | messages from the service that updates DID - Fixed.
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| 175 |
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| 176 |
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| 177 | 15/07/2011
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| 178 | Changes for version 19.23:
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| 179 | - The new functions:
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| 180 | int DimClient::inCallback()
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| 181 | int DimServer::inCallback()
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| 182 | Can be used to find out if the function is being called in the context of a DIM callback
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| 183 | handler (they return 1 if yes, 0 if no).
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| 184 | - There was no way to "remove" an errorHandler or exitHandler in C++.
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| 185 | Now the following functions accept 0 as parameter:
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| 186 | DimClient::addErrorHandler(0)
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| 187 | DimServer::addErrorHandler(0)
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| 188 | DimServer::addExitHandler(0)
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| 189 | DimServer::addClientExitHandler(0)
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| 190 | In order to remove them.
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| 191 | - The Windows Visual Studio Manifest file distributed since version v19r19 was wrong, so the latest
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| 192 | DIM versions did not work on Windows machines without Visual Studio 8 installed - Fixed.
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| 193 |
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| 194 |
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| 195 | 21/06/2011
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| 196 | Changes for version 19.22:
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| 197 | - DIM servers would hang when tring to exit due to "Services already declared", if the user
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| 198 | exitHandler() didn't directly call exit (instead tried to exit later in the main program).
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| 199 | Fixed.
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| 200 | - Servers accept now also 'B' or 'V' as format, they are both equivalent to 'C'.
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| 201 | - In Linux when a server printed "Write timeout, disconecting from XXX", it didn't always
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| 202 | disconnect properly, so the client would not always reconnect afterwards. Fixed.
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| 203 |
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| 204 |
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| 205 | 31/05/2011
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| 206 | Changes for version 19.21:
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| 207 | - Fixed a bug in DimRpcInfo: the timer for the timeout was started too late and sometimes the
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| 208 | RPC data was received in the meantime, so the timer was never stopped.
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| 209 |
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| 210 |
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| 211 | 04/05/2011
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| 212 | Changes for version 19.20:
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| 213 | - Fixed a bug added in v19r18: The <server_name>/SERVICE_LIST was no longer reporting correctly
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| 214 | the disappearence of services (by a "-<service_name>" ). Fixed.
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| 215 |
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| 216 |
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| 217 | 27/04/2011
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| 218 | Changes for version 19.19:
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| 219 | - Fixed a very very old (horrible) bug in dis.c and dns.c: there was a hardwired malloc(8),
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| 220 | which was only ok for 32 bit machines. It's amazing this didn't bring more trouble...
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| 221 |
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| 222 |
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| 223 | 07/04/2011
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| 224 | Changes for version 19.18:
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| 225 | - The standard server service <server_name>/SERVICE_LIST had problems reporting the correct
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| 226 | information when used by several clients in paralel - fixed.
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| 227 |
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| 228 |
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| 229 | 11/03/2011
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| 230 | Changes for version 19.17:
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| 231 | - The TCPIP "listen" backlog for a server was increased for all servers (including the DNS)
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| 232 | from 16 to the constant SOMAXCONN (128 on Linux at the moment, 200 on Windows ?)
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| 233 | - After a "fork" the DIM initialization sequence guided by semaphores was not correctly
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| 234 | handled, this made the forked children hang and not respond to DIM anymore - fixed.
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| 235 |
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| 236 |
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| 237 | 23/02/2011
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| 238 | Changes for version 19.16:
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| 239 | - DimServer::stop() did not correctly clear the ServerName - fixed.
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| 240 | - The Linux DID now prints the DNS it is connected to in the title bar.
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| 241 |
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| 242 |
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| 243 | 20/12/2010
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| 244 | Changes for version 19.15:
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| 245 | - Still fixing dis_stop_serving():
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| 246 | - The DNS sometimes gets a remove service message from a server, after the server has
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| 247 | closed the connection, this was not handled properly - fixed.
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| 248 | - Fixed yet another detail (variable not cleared) in the thread handling at dis_stop_serving().
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| 249 | - dtq.c now clears all timer_queues at dis_stop_serving()
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| 250 | - Added some protections in case of closed connections.
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| 251 |
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| 252 |
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| 253 | 10/12/2010
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| 254 | Changes for version 19.14:
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| 255 | - Still fixing dis_stop_serving():
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| 256 | - Adedd pthread_join in linux to wait for threads to die
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| 257 | - the following dis_start_serving() would not reconnect to the DNS if the DNS connection
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| 258 | was pending (i.e. the DNS was stopped or restarted)
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| 259 |
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| 260 |
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| 261 | 06/12/2010
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| 262 | Changes for version 19.13:
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| 263 | - Fixed a few compiler warnings in dis.c
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| 264 | - Added #ifndef PXI around some Windows setPriority calls
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| 265 | - dis_stop_serving() did not completely clean-up DIM so that another dis_start_serving()
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| 266 | could be done properly after for example a "fork()". Fixed.
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| 267 |
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| 268 |
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| 269 | 20/09/2010
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| 270 | Changes for version 19.12:
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| 271 | - Fixed a bug added when removing warnings in v19r10 (dis.c and dns.c).
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| 272 |
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| 273 |
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| 274 | 07/06/2010
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| 275 | Changes for version 19.11:
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| 276 | - Added some protections in update_service() in order to try to solve a DIP issue.
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| 277 | (related to very frequent updates of the same service in different threads)
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| 278 | - Added the possibility of defining timeouts for:
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| 279 | - DimBrowser::getServices
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| 280 | - DimBrowser::getServers
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| 281 | - DimBrowser::getServerServices
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| 282 | - DimBrowser::getServerClients
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| 283 | - Added the possibility of retrieving the time a command arrived:
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| 284 | - int dis_get_timestamp(int service_id, int *secs, int *millisecs) in C
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| 285 | - int DimCommand::getTimestamp() and int DimCommand::getTimestampMillisecs() in C++
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| 286 | - Added a "const" keyword to the "char *format" parameter in the constructors of
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| 287 | - DimService and DimCommand
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| 288 | - Added a call DimCommand::hasNext(), can be used when commands are queued.
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| 289 | - Fixed a memory leak when using DimService::setData and then dynamically deleting the
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| 290 | DimService
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| 291 |
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| 292 |
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| 293 | 17/02/2010
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| 294 | Changes for version 19.10:
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| 295 | - Fixed a bug in the DNS related to the latest change (browsing for a single service name)
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| 296 | The DNS could crash when killing a server.
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| 297 | - Removed some compilation warnings
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| 298 |
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| 299 |
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| 300 | 04/01/2010
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| 301 | Changes for version 19.09:
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| 302 | - Created two new functions: dis_set_debug_on() and dis_set_debug_off(), these
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| 303 | enable or disable printing a message per service update
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| 304 | - Tried to protect against:
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| 305 | - a service being deleted from the server while it is being updated
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| 306 | - a client unsubscribing from a service while it is being updated.
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| 307 | - Optimized the DNS when browsing for a service search pattern without wildcards
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| 308 | (i.e. browsing for a single service name)
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| 309 |
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| 310 |
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| 311 | 13/11/2009
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| 312 | Changes for version 19.08:
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| 313 | - Since version v18r4 where dim_wait() was modified, dim_wait could hang in windows if
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| 314 | the wake_up event was triggered before dim_wait was called. Could affect smi++.
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| 315 | Fixed.
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| 316 | - Fixed a compilation bug in dis.c that affected some platforms.
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| 317 |
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| 318 |
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| 319 | 30/10/2009
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| 320 | Changes for version 19.07:
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| 321 | - Some more bugs related to being able to publish to more that one DNS fixed.
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| 322 |
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| 323 |
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| 324 | 28/10/2009
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| 325 | Changes for version 19.06:
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| 326 | - When opening DNS connections, when the DNS is not there, from a process that is at the
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| 327 | same time a client and a server only one pending connection was used now two separate
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| 328 | ones are created.
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| 329 | - Tried to fix a few more problems related to dis_stop_serving...
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| 330 |
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| 331 |
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| 332 | 26/10/2009
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| 333 | Changes for version 19.05:
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| 334 | - dis_stop_serving had stopped working in version 19.4. So all servers that undeclared
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| 335 | all services and then tried to re-declare new ones would fail (corrupted server name).
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| 336 | Affected in particular the DimBridge
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| 337 |
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| 338 |
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| 339 | 27/08/2009
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| 340 | Changes for version 19.04:
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| 341 | - Added the following functions:
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| 342 | Server part:
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| 343 | C - dis_get_n_clients(int service_id)
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| 344 | C++ - int DimService::getNClients()
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| 345 | Client part (C++ only):
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| 346 | DimClient::setNoDataCopy()
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| 347 | This will prevent any data copy in the client and the user should make
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| 348 | sure that the data received from DIM is not used outside the callback
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| 349 | in order to benefir from this feature.
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| 350 | - Fixed the Java DIM Jar file, it was wrong in the previous version.
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| 351 |
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| 352 |
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| 353 | 31/07/2009
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| 354 | Changes for version 19.03:
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| 355 | - Removed some more compilation warnings.
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| 356 | - Fixed a bug in the DNS. The mechanism for retrieving the "SERVER_LIST" when
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| 357 | some server names were longer that 35 characters was very slow.
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| 358 |
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| 359 |
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| 360 | 06/07/2009
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| 361 | Changes for version 19.02:
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| 362 | - Fixed a bug in the server part handling of RPCs, it created a memory leak.
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| 363 | It was using a separate thread to handle timeouts and there is no safe way to
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| 364 | kill a thread from outside. Fixed.
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| 365 | - the function dim_stop_thread() is now obsolete.
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| 366 | - Added the possibility to change the send and receive buffer sizes:
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| 367 | - int dim_set_write_buffer_size(int size)
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| 368 | - int dim_get_write_buffer_size()
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| 369 | - int dim_set_read_buffer_size(int size)
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| 370 | - int dim_get_read_buffer_size()
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| 371 | The default (and minimum) is 16384 bytes.
|
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| 372 | These calls should be done before any other DIM calls.
|
|---|
| 373 | - Fixed a bug in the Java DimBrowser class (the format was not returned correctly)
|
|---|
| 374 |
|
|---|
| 375 | 04/05/2009
|
|---|
| 376 | Changes for version 19.01:
|
|---|
| 377 | - A server can now publish to more than one DNS.
|
|---|
| 378 | To use an extra DNS:
|
|---|
| 379 | - in "C":
|
|---|
| 380 | long dnsid;
|
|---|
| 381 | char extra_dns[128];
|
|---|
| 382 | ...
|
|---|
| 383 | dim_get_env_var("EXTRA_DNS_NODE", extra_dns, sizeof(extra_dns));
|
|---|
| 384 | dnsid = dis_add_dns(extra_dns,0);
|
|---|
| 385 | sprintf(name1,"NewService%d",i);
|
|---|
| 386 | dis_add_service_dns(dnsid, name1, "I", &NewData, sizeof(NewData),
|
|---|
| 387 | (void *)0, 0 );
|
|---|
| 388 | dis_start_serving_dns(dnsid, "xx_new");
|
|---|
| 389 |
|
|---|
| 390 | - in C++:
|
|---|
| 391 | DimServerDns *newDns;
|
|---|
| 392 | char *extraDns = 0;
|
|---|
| 393 | DimService *new_servint;
|
|---|
| 394 | ...
|
|---|
| 395 | extraDns = DimUtil::getEnvVar("EXTRA_DNS_NODE");
|
|---|
| 396 | if(extraDns)
|
|---|
| 397 | newDns = new DimServerDns(extraDns, 0, "new_TEST");
|
|---|
| 398 | ...
|
|---|
| 399 | if(extraDns)
|
|---|
| 400 | new_servint = new DimService(newDns, "new_TEST/INTVAL",ival);
|
|---|
| 401 |
|
|---|
| 402 | - Removed all warnings from DIM sources so that it can be compiled with -Wall -Wextra on Linux
|
|---|
| 403 | - Changed the makefiles so that the default on Linux is now 64 bits.
|
|---|
| 404 | - The flag 32BITS=yes can be added in order to generate 32 bit code
|
|---|
| 405 |
|
|---|
| 406 |
|
|---|
| 407 | 26/02/2009
|
|---|
| 408 | Changes for version 18.05:
|
|---|
| 409 | - Made the callback for "DIS_DNS/SERVER_LIST" uninterruptible, so that two clients subscribing
|
|---|
| 410 | would not get mixed up answers.
|
|---|
| 411 | - The same for "<server>/SERVICE_LIST"
|
|---|
| 412 | - Tryied to fix a DNS crash, introduced in v18r4 by releasing the connection when "informing clients".
|
|---|
| 413 | - removed some "//" comments in "C"
|
|---|
| 414 |
|
|---|
| 415 |
|
|---|
| 416 | 20/02/2009
|
|---|
| 417 | Changes for version 18.04:
|
|---|
| 418 | - Changed the dim_wait() mechanism, so that it works for several threads in parallel:
|
|---|
| 419 | - On Linux it was based on POSIX semaphores now it is based on POSIX "condition
|
|---|
| 420 | variables"
|
|---|
| 421 | - On Windows it was based on "Auto Reset Events" now it uses "Manual Resel "Events"
|
|---|
| 422 | - The DNS should now correctly update the "DIS_DNS/SERVER_LIST" service. It used to report
|
|---|
| 423 | a new server, even when the services already existed and the server was killed by the DNS.
|
|---|
| 424 | (And never report it killed). It also didn't report correctly when a server went out of "ERROR"
|
|---|
| 425 | (this is reported as a "+" as for a new server).
|
|---|
| 426 |
|
|---|
| 427 |
|
|---|
| 428 | 05/02/2009
|
|---|
| 429 | Changes for version 18.03:
|
|---|
| 430 | - The list of registered services in a server could get corrupted in some rare cases
|
|---|
| 431 | making the server crash - fixed.
|
|---|
| 432 | - If the DNS couldn't talk to a client it could sometimes hang - fixed.
|
|---|
| 433 | - Java client modifications:
|
|---|
| 434 | - DimUpdatedInfo was not working correctly - fixed in dim_jni.c.
|
|---|
| 435 | - Implemented DimRpcInfo
|
|---|
| 436 | - Changed the DimBroser class to use DimRpcInfo.
|
|---|
| 437 | - Added a jdim.jar file in the jdim/classes directory of the DIM distribution
|
|---|
| 438 |
|
|---|
| 439 |
|
|---|
| 440 | 15/01/2009
|
|---|
| 441 | Changes for version 18.02:
|
|---|
| 442 | - Added the following functions:
|
|---|
| 443 | - C++ Client
|
|---|
| 444 | - int DimClient.getServerPid()
|
|---|
| 445 | - Java Client
|
|---|
| 446 | - int DimClient.getServerPid()
|
|---|
| 447 | - String[] DimBrowser.getServers()
|
|---|
| 448 | - String DimBrowser.getServerNode(String server)
|
|---|
| 449 | - int DimBrowser.getServerPid(String server)
|
|---|
| 450 |
|
|---|
| 451 |
|
|---|
| 452 | 09/01/2009
|
|---|
| 453 | Changes for version 18.01:
|
|---|
| 454 | - Added in the distribution the Visual Studio 8 dlls and manifest. Otherwise
|
|---|
| 455 | it would not work on most PCs.
|
|---|
| 456 |
|
|---|
| 457 |
|
|---|
| 458 | 03/12/2008
|
|---|
| 459 | Changes for version 18.00:
|
|---|
| 460 | - The Windows execulables and libraries are now built using Visual Studio 8
|
|---|
| 461 | - Some changes added by GSI mainly in the Java Native Interface
|
|---|
| 462 |
|
|---|
| 463 |
|
|---|
| 464 | 06/11/2008
|
|---|
| 465 | Changes for version 17.12:
|
|---|
| 466 | - Client functionality:
|
|---|
| 467 | - Added a new function dic_stop(), to close anything related to DIM
|
|---|
| 468 | for a client
|
|---|
| 469 | - Added the function dic_get_server_pid(). Similar to dic_get_server().
|
|---|
| 470 | Can be executed in a callback to retrieve the pid of the current server
|
|---|
| 471 | - DimBrowser Class:
|
|---|
| 472 | - DimBrowser::getServices() used to create and destroy the DimRpc connection
|
|---|
| 473 | to the Dns every time it was called. This was heavy if called in a loop.
|
|---|
| 474 | Now the connection is maintained until the DimBrowser itself is destroyed.
|
|---|
| 475 | - A new method DimBrowser::getNextServer(char *&server, char *&node, int *pid)
|
|---|
| 476 | has been created. similar to the previous one but returns also the server pid.
|
|---|
| 477 | - DNS
|
|---|
| 478 | - The DNS was still doing some blocking write calls to servers or clients.
|
|---|
| 479 | Now all write calls have a timeout and can not block forever.
|
|---|
| 480 | - Linux DID
|
|---|
| 481 | - The "Subscribe" button was subscribing to services with update rate of 10 seconds.
|
|---|
| 482 | This was misleading, the users could think the server was calling update_service
|
|---|
| 483 | when it wasn't.
|
|---|
| 484 | Now there are two Subscribe buttons ("on change" or "Update rate of 10 seconds").
|
|---|
| 485 | - DimDridge
|
|---|
| 486 | - Accepts an extra flag "-copy" which provokes an internal copy of the data.
|
|---|
| 487 |
|
|---|
| 488 |
|
|---|
| 489 | 08/09/2008
|
|---|
| 490 | Changes for version 17.11:
|
|---|
| 491 | - Some DIM Processes, servers or clients could enter a loop taking 100 % CPU
|
|---|
| 492 | time in some rare occasions, fixed.
|
|---|
| 493 | - Added some protections when removing services in the DimBridge.
|
|---|
| 494 |
|
|---|
| 495 |
|
|---|
| 496 | 30/08/2008
|
|---|
| 497 | Changes for version 17.10:
|
|---|
| 498 | - Some DIM Processes, servers or clients would not reconnect when the DNS was
|
|---|
| 499 | restarted. Fixed two cause:
|
|---|
| 500 | - Some processes in Linux were stuck reading from the DNS socket
|
|---|
| 501 | - Some others "forgot" to set a timer under very special conditions
|
|---|
| 502 | - Changed some of the DNS debug messages to be more explicit.
|
|---|
| 503 |
|
|---|
| 504 |
|
|---|
| 505 | 21/07/2008
|
|---|
| 506 | Changes for version 17.09:
|
|---|
| 507 | - DIM error messages were not being flushed when the output was redirected
|
|---|
| 508 | to a logfile, fixed.
|
|---|
| 509 |
|
|---|
| 510 |
|
|---|
| 511 | 18/07/2008
|
|---|
| 512 | Changes for version 17.08:
|
|---|
| 513 | - Sometimes a server or a client could do a read on a sockect that had just
|
|---|
| 514 | been closed which left them hanging forever - fixed.
|
|---|
| 515 |
|
|---|
| 516 |
|
|---|
| 517 | 01/07/2008
|
|---|
| 518 | Changes for version 17.07:
|
|---|
| 519 | - The DimTimer was sometimes not started when the constructor was called
|
|---|
| 520 | with a time argument.
|
|---|
| 521 | - Clients could not connect to more than 1024 servers - fixed.
|
|---|
| 522 | (if the machine allows more than 1024 connections)
|
|---|
| 523 |
|
|---|
| 524 |
|
|---|
| 525 | 30/06/2008
|
|---|
| 526 | Changes for version 17.06:
|
|---|
| 527 | - Corrected the makefile for Darwin, now the number of accepted connections is
|
|---|
| 528 | increased to 8192 only for Linux.
|
|---|
| 529 | - Fixed a bug in the DimTimer, it used to accept to be re-started, but then crashed
|
|---|
| 530 | at destruction time if not stopped the same number of times. Now it can not be
|
|---|
| 531 | re-started.
|
|---|
| 532 | - The Dns used to ask servers to re-register at regular intervals when they were not
|
|---|
| 533 | sending their watchdog messages (i.e. they were in "ERROR", red in DID). Now the
|
|---|
| 534 | DNS only asks once (unless they answer). This could cause the DNS to hang if
|
|---|
| 535 | servers were in ERROR for a long time.
|
|---|
| 536 | - The Dns now accepts a command line parameter: -d to print debug messages.
|
|---|
| 537 | - The clients were not handling properly the case when they could contact the DNS
|
|---|
| 538 | but then they could not contact the server that the DNS gave them (either because
|
|---|
| 539 | of a firewall or because the server run on an inaccessible network). In this case
|
|---|
| 540 | the clients would timeout trying to contact the server for each service and kept
|
|---|
| 541 | asking the DNS the server coordinates over and over again. Now the clients keep
|
|---|
| 542 | a list on unreacheable servers, so they don't try to contact the server for each
|
|---|
| 543 | service and only ask the DNS again with an increasing interval that goes from 10
|
|---|
| 544 | seconds to 2 minutes maximum.
|
|---|
| 545 | - The server now issues an error message if the format string is too long.
|
|---|
| 546 | - Linux DID
|
|---|
| 547 | - Removed the command "Kill ALL Servers", it was too dangerous
|
|---|
| 548 | - Now the list of nodes in "View Servers by Node" is in alphabetical order and
|
|---|
| 549 | in lowercase.
|
|---|
| 550 |
|
|---|
| 551 |
|
|---|
| 552 | 30/04/2008
|
|---|
| 553 | Changes for version 17.05:
|
|---|
| 554 | - In Linux in some cases a SIGPIPE was generated. Normally the DIM library sets
|
|---|
| 555 | the behaviour of SIGPIPE to ignored, but if another library or main program
|
|---|
| 556 | changes the SIGPIPE behaviour, then the application could exit when the SIGPIPE
|
|---|
| 557 | was generated. Fixed - on Linux now the function send with flag MSG_NOSIGNAL
|
|---|
| 558 | is used in oder to avoid generating SIGPIPE.
|
|---|
| 559 |
|
|---|
| 560 |
|
|---|
| 561 |
|
|---|
| 562 | 4/04/2008
|
|---|
| 563 | Changes for version 17.04:
|
|---|
| 564 | - Sometimes processes (servers or clients) would hang when the DNS was restarted.
|
|---|
| 565 | This was due to a strange (Windows?) feature, by which a connect could succeed
|
|---|
| 566 | after a connection was closed (and reported) on the other side. Fixed.
|
|---|
| 567 |
|
|---|
| 568 |
|
|---|
| 569 |
|
|---|
| 570 | 27/03/2008
|
|---|
| 571 | Changes for version 17.03:
|
|---|
| 572 | - Can now make DID for 64 bits by making DIM using:
|
|---|
| 573 | gmake X64=yes all
|
|---|
| 574 | - Increased the size of the Hash tables for the servers and the DNS.
|
|---|
| 575 |
|
|---|
| 576 |
|
|---|
| 577 |
|
|---|
| 578 | 20/02/2008
|
|---|
| 579 | Changes for version 17.02:
|
|---|
| 580 | - Fixed the Java DimTimer - stop() didn't work
|
|---|
| 581 | Required changing dim_jni.c as well as the java part
|
|---|
| 582 | - Fixed DIM for Darwin - had stopped working
|
|---|
| 583 |
|
|---|
| 584 |
|
|---|
| 585 |
|
|---|
| 586 | 20/01/2008
|
|---|
| 587 | Changes for version 17.01:
|
|---|
| 588 | - The Java API now works on 64 bit machines, Thanks to Joern Adamczewski.
|
|---|
| 589 | Please use:
|
|---|
| 590 | gmake JDIM=yes all
|
|---|
| 591 | - Linux executables are now compiled/linked on slc4 (32 bits).
|
|---|
| 592 | - Big changes in the DimRpcs both client and server part. Tere were bugs
|
|---|
| 593 | related to the handling of timeouts.
|
|---|
| 594 | Unfortunatelly all applications using RPCs need to be re-linked.
|
|---|
| 595 |
|
|---|
| 596 |
|
|---|
| 597 |
|
|---|
| 598 | -----------------------------------------------------------------------------------------
|
|---|
| 599 | Previous version history:
|
|---|
| 600 |
|
|---|
| 601 | 07/12/2007
|
|---|
| 602 | Changes for version 16.14:
|
|---|
| 603 | - Now by default All DIM processes are ready to accept up to 8192 connections, both
|
|---|
| 604 | in Linux and Windows. Although in Linux for this to be effective the machine system
|
|---|
| 605 | limits must allow more than 1024 descriptors/open files per process.
|
|---|
| 606 | - Fixed a little memory leak in tokenstring.cxx
|
|---|
| 607 | - And a little compilation bug for some platforms in tcpip.c
|
|---|
| 608 |
|
|---|
| 609 |
|
|---|
| 610 | 15/05/2007
|
|---|
| 611 | Changes for version 16.13:
|
|---|
| 612 | - If DIM_HOST_NODE is defined when starting up a server, a DIM client will now try
|
|---|
| 613 | two network interfaces in order to talk to that server and only give up if they both
|
|---|
| 614 | fail. First it will try the ip name or ip address specified by the server using
|
|---|
| 615 | DIM_HOST_NODE, if that fails it will try the ip address of the default interface
|
|---|
| 616 | retrieved by the server using gethostname (and gethostbyname).
|
|---|
| 617 | The changes basically affect the case in which the DIM_HOST_NODE given to the servers
|
|---|
| 618 | is specified as IP address instad of an IP name. Otherwise this mechanism was already
|
|---|
| 619 | working.
|
|---|
| 620 |
|
|---|
| 621 |
|
|---|
| 622 | 3/05/2007
|
|---|
| 623 | Changes for version 16.12:
|
|---|
| 624 | - The Java version did not exit properly when main() terminated - fixed.
|
|---|
| 625 |
|
|---|
| 626 |
|
|---|
| 627 | 25/04/2007
|
|---|
| 628 | Changes for version 16.11:
|
|---|
| 629 | - On Linux the timeout to detect a lost connections (unplugged ethernet cable
|
|---|
| 630 | or machine reboot) was too long, around 15 minutes - Fixed.
|
|---|
| 631 | On Linux the KEEPALIVE feature is now used instead of a regular socket write,
|
|---|
| 632 | all other platforms should work as before.
|
|---|
| 633 |
|
|---|
| 634 |
|
|---|
| 635 | 21/02/2007
|
|---|
| 636 | Changes for version 16.10:
|
|---|
| 637 | - Found a bug in dis_stop_serving: one socket connection was not closed - fixed.
|
|---|
| 638 | - Implemented a new environment variable for the DNS: DIM_DNS_ACCEPTED_NODES
|
|---|
| 639 | Can receive a list on nodes or domains separated by commas.
|
|---|
| 640 | If the DNS receives a connection from a node not in this list, it will
|
|---|
| 641 | reject it and kill the server or client requesting it.
|
|---|
| 642 | - Fixed some C++ warnings.
|
|---|
| 643 |
|
|---|
| 644 |
|
|---|
| 645 | 19/01/2007
|
|---|
| 646 | Changes for version 16.9:
|
|---|
| 647 | - The modifications done in version 16.8 have introduced a bug:
|
|---|
| 648 | - DIM servers would not behave properly (exit) when receiving a kill command
|
|---|
| 649 | from the DNS (for duplicated services, not allowed host names or manual "kill")
|
|---|
| 650 | This is now fixed.
|
|---|
| 651 |
|
|---|
| 652 |
|
|---|
| 653 | 30/10/2006
|
|---|
| 654 | Changes for version 16.8:
|
|---|
| 655 | - Modified dis_stop_serving() and DimServer::stop() to completely stop DIM:
|
|---|
| 656 | - Stop also the DIM threads.
|
|---|
| 657 | - Release all allocated memory
|
|---|
| 658 | - Allow a different port number when re-starting.
|
|---|
| 659 |
|
|---|
| 660 |
|
|---|
| 661 | 11/07/2006
|
|---|
| 662 | Changes for version 16.7:
|
|---|
| 663 | - Prepared for increasing the number of open connections per process
|
|---|
| 664 | (On Linux still requires changing some parameters and recompiling the Dns)
|
|---|
| 665 | - Fixed one error and several warnings for gcc 4.
|
|---|
| 666 |
|
|---|
| 667 |
|
|---|
| 668 | 11/05/2006
|
|---|
| 669 | Changes for version 16.6:
|
|---|
| 670 | - Sometimes a server or client would crash while exiting if the DNS was not running.
|
|---|
| 671 | Fixed.
|
|---|
| 672 | - Fixed the reporting of some ERROR messages on Windows (used to report error "0")
|
|---|
| 673 | - Allowed dim_send_command to receive instead of -dns <node_name>
|
|---|
| 674 | -dns <node_name>[:<port_number>]
|
|---|
| 675 |
|
|---|
| 676 |
|
|---|
| 677 | 01/05/2006
|
|---|
| 678 | Changes for version 16.5:
|
|---|
| 679 | - Big Spring Cleanup. Removed most warnings. Can now be compiled on
|
|---|
| 680 | Windows with Warning Level 3 and on Linux with -Wall
|
|---|
| 681 | (still not working for -ansi -pedantic...)
|
|---|
| 682 | - When trying to access a server in a different network (i.e. not reacheable)
|
|---|
| 683 | a client (for example DID) would take very very long to timeout - fixed.
|
|---|
| 684 | - Added two new sets of functions that allow setting the DIM_DNS_NODE separately
|
|---|
| 685 | for a server and a client in the same process:
|
|---|
| 686 | - int dis_set_dns_node(char *node)
|
|---|
| 687 | - int dis_get_dns_node(char *node)
|
|---|
| 688 | - int dis_set_dns_port(int port)
|
|---|
| 689 | - int dis_get_dns_port()
|
|---|
| 690 |
|
|---|
| 691 | - int dic_set_dns_node(char *node)
|
|---|
| 692 | - int dic_get_dns_node(char *node)
|
|---|
| 693 | - int dic_set_dns_port(int port)
|
|---|
| 694 | - int dic_get_dns_port()
|
|---|
| 695 | These routines should be used instead of the equivalent ones starting with "dim_"
|
|---|
| 696 | since these set the same DIM_DNS_NODE/port for both Server and client parts of a
|
|---|
| 697 | process.
|
|---|
| 698 | - Adapted the C++ equivalents (DimClient::setDnsNode, etc. and DimServer::setDnsNode,
|
|---|
| 699 | etc.) to use the new routines, so they are now independent.
|
|---|
| 700 | Adapted also the Java equivalents.
|
|---|
| 701 | - Fixed DimBridge to use the new routines.
|
|---|
| 702 | - Fixed a bug in DID that made it crash sometimes at startup (and also when the DNS
|
|---|
| 703 | restarted)!
|
|---|
| 704 | - Found some very interesting features of DIM:
|
|---|
| 705 | - In a node with two ethernet interfaces (so connected to two networks):
|
|---|
| 706 | - The DNS will answer to servers and client on both networks, only its server
|
|---|
| 707 | part - DIS_DNS (the one that answers to DID and DimBrowser requests) would
|
|---|
| 708 | in principle answer only to one of the networks (in principle the default
|
|---|
| 709 | interface* but can be changed by setting the environment variable "DIM_HOST_NODE").
|
|---|
| 710 | - But, in fact, if the DNS or any server is started with the environment variable
|
|---|
| 711 | DIM_HOST_NODE set to the interface that is not the default* one. Than both the
|
|---|
| 712 | DNS (including the server part) and the DIM servers will be accessible from both
|
|---|
| 713 | networks. For example DID will work fine on both networks.
|
|---|
| 714 | * The command "hostname" will return the name of the default network interface.
|
|---|
| 715 |
|
|---|
| 716 | Note: As a result of inserting new functions the DIM shared library entry points have
|
|---|
| 717 | changed, so all DIM Servers/Clients should be relinked (in particular in Linux).
|
|---|
| 718 |
|
|---|
| 719 |
|
|---|
| 720 | 20/04/2006
|
|---|
| 721 | Changes for version 16.4:
|
|---|
| 722 | - Optimized the DNS for providing the list or running servers dynamically
|
|---|
| 723 | by subscribing to the service "DIS_DNS/SERVER_LIST"
|
|---|
| 724 |
|
|---|
| 725 |
|
|---|
| 726 | 07/04/2006
|
|---|
| 727 | Changes for version 16.3:
|
|---|
| 728 | - Upgraded to work on LynxOS Version 4.
|
|---|
| 729 | - Updated makefile for INTEL platform
|
|---|
| 730 | - Updated some ifdefs based on the existence of __Lynx__
|
|---|
| 731 |
|
|---|
| 732 |
|
|---|
| 733 | 10/03/2006
|
|---|
| 734 | Changes for version 16.2:
|
|---|
| 735 | - Increased the listen queue. To avoid "Connection Refused" messages from servers
|
|---|
| 736 | or from the DNS.
|
|---|
| 737 |
|
|---|
| 738 |
|
|---|
| 739 | 28/02/2006
|
|---|
| 740 | Changes for version 16.1:
|
|---|
| 741 | - Fixed the NO_THREADS option for LINUX, it had stopped working.
|
|---|
| 742 | - DimInfo::getData() could return an invalid pointer if called before connecting
|
|---|
| 743 | to the server (or discovering the server did not exist). Fixed
|
|---|
| 744 | (it now returns 0 in this case).
|
|---|
| 745 |
|
|---|
| 746 |
|
|---|
| 747 | 09/11/2005
|
|---|
| 748 | Changes for version 16.0:
|
|---|
| 749 | - Consolidated the new timer handling mechanism, should be much more precise.
|
|---|
| 750 | - Fixed the RPC handling. Used to be based on timming assumptions.
|
|---|
| 751 | Now uses a safe protocol to make sure the server is connected before sending
|
|---|
| 752 | an RPC request.
|
|---|
| 753 | - Included in the distribution some performance measurements and a benchmark
|
|---|
| 754 | server and client. Sources in src/benchmark executables in /bin for windows
|
|---|
| 755 | and /linux for linux.
|
|---|
| 756 | Usage:
|
|---|
| 757 | benchServer <message_size_in_bytes> <number_of_services>
|
|---|
| 758 | benchClient
|
|---|
| 759 | benchClient will run for a while and print the measurement results.
|
|---|
| 760 |
|
|---|
| 761 | Please check the Manual for more information at:
|
|---|
| 762 | http://www.cern.ch/dim
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